surprise :p

SVN-Revision: 11894

target/linux/ar71xx/Makefile

@@ -0,0 +1,24 @@
+#
+# Copyright (C) 2008 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+ARCH:=mips
+BOARD:=ar71xx
+BOARDNAME:=Atheros AR71xx
+FEATURES:=squashfs tgz broken
+
+LINUX_VERSION:=2.6.25.10
+
+include $(INCLUDE_DIR)/target.mk
+
+#DEFAULT_PACKAGES += kmod-madwifi
+
+define Target/Description
+	Build firmware images for Atheros AR71xx based boards
+endef
+
+$(eval $(call BuildTarget))

target/linux/ar71xx/config-default

@@ -0,0 +1,244 @@
+CONFIG_32BIT=y
+# CONFIG_64BIT is not set
+# CONFIG_8139TOO is not set
+CONFIG_ADM6996_PHY=y
+CONFIG_AG71XX=y
+# CONFIG_AR71XX_EARLY_SERIAL is not set
+CONFIG_AR71XX_MACH_GENERIC=y
+CONFIG_AR71XX_MACH_RB_4XX=y
+CONFIG_AR71XX_MACH_WP543=y
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_POPULATES_NODE_MAP=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_ARCH_SUPPORTS_OPROFILE=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ATHEROS_AR71XX=y
+CONFIG_BASE_SMALL=0
+# CONFIG_BCM47XX is not set
+CONFIG_BITREVERSE=y
+# CONFIG_BROADCOM_PHY is not set
+CONFIG_CEVT_R4K=y
+CONFIG_CLASSIC_RCU=y
+CONFIG_CMDLINE="root=/dev/mtdblock2 rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 init=/etc/preinit"
+CONFIG_CPU_BIG_ENDIAN=y
+CONFIG_CPU_HAS_LLSC=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_SYNC=y
+# CONFIG_CPU_LITTLE_ENDIAN is not set
+# CONFIG_CPU_LOONGSON2 is not set
+CONFIG_CPU_MIPS32=y
+# CONFIG_CPU_MIPS32_R1 is not set
+CONFIG_CPU_MIPS32_R2=y
+# CONFIG_CPU_MIPS64_R1 is not set
+# CONFIG_CPU_MIPS64_R2 is not set
+CONFIG_CPU_MIPSR2=y
+# CONFIG_CPU_NEVADA is not set
+# CONFIG_CPU_R10000 is not set
+# CONFIG_CPU_R3000 is not set
+# CONFIG_CPU_R4300 is not set
+# CONFIG_CPU_R4X00 is not set
+# CONFIG_CPU_R5000 is not set
+# CONFIG_CPU_R5432 is not set
+# CONFIG_CPU_R6000 is not set
+# CONFIG_CPU_R8000 is not set
+# CONFIG_CPU_RM7000 is not set
+# CONFIG_CPU_RM9000 is not set
+# CONFIG_CPU_SB1 is not set
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+# CONFIG_CPU_TX39XX is not set
+# CONFIG_CPU_TX49XX is not set
+# CONFIG_CPU_VR41XX is not set
+CONFIG_CRYPTO_AEAD=m
+CONFIG_CRYPTO_AUTHENC=m
+CONFIG_CRYPTO_GF128MUL=m
+CONFIG_CSRC_R4K=y
+CONFIG_DEVPORT=y
+# CONFIG_DM9000 is not set
+CONFIG_DMA_NEED_PCI_MAP_STATE=y
+CONFIG_DMA_NONCOHERENT=y
+# CONFIG_E1000E_ENABLED is not set
+CONFIG_EARLY_PRINTK=y
+# CONFIG_FIXED_PHY is not set
+CONFIG_FS_POSIX_ACL=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+CONFIG_GENERIC_GPIO=y
+# CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ is not set
+# CONFIG_GPIO_MCP23S08 is not set
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAVE_GPIO_LIB=y
+CONFIG_HAVE_IDE=y
+# CONFIG_HAVE_KPROBES is not set
+# CONFIG_HAVE_KRETPROBES is not set
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HW_HAS_PCI=y
+CONFIG_HW_RANDOM=m
+# CONFIG_I2C is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+CONFIG_ICPLUS_PHY=y
+# CONFIG_IDE is not set
+CONFIG_INITRAMFS_ROOT_GID=0
+CONFIG_INITRAMFS_ROOT_UID=0
+CONFIG_INITRAMFS_SOURCE="../../root"
+CONFIG_IRQ_CPU=y
+# CONFIG_LEDS_ALIX is not set
+CONFIG_LEDS_GPIO=y
+# CONFIG_LEMOTE_FULONG is not set
+CONFIG_LZO_COMPRESS=m
+CONFIG_LZO_DECOMPRESS=m
+# CONFIG_MACH_ALCHEMY is not set
+# CONFIG_MACH_DECSTATION is not set
+# CONFIG_MACH_JAZZ is not set
+# CONFIG_MACH_VR41XX is not set
+# CONFIG_MDIO_BITBANG is not set
+# CONFIG_MEMSTICK is not set
+CONFIG_MICREL_PHY=y
+CONFIG_MIPS=y
+# CONFIG_MIPS_ATLAS is not set
+# CONFIG_MIPS_COBALT is not set
+CONFIG_MIPS_L1_CACHE_SHIFT=5
+CONFIG_MIPS_MACHINE=y
+# CONFIG_MIPS_MALTA is not set
+CONFIG_MIPS_MT_DISABLED=y
+# CONFIG_MIPS_MT_SMP is not set
+# CONFIG_MIPS_MT_SMTC is not set
+# CONFIG_MIPS_SEAD is not set
+# CONFIG_MIPS_SIM is not set
+CONFIG_MTD=y
+# CONFIG_MTD_ABSENT is not set
+CONFIG_MTD_BLKDEVS=y
+CONFIG_MTD_BLOCK=y
+# CONFIG_MTD_BLOCK2MTD is not set
+# CONFIG_MTD_CFI is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+CONFIG_MTD_CHAR=y
+# CONFIG_MTD_CMDLINE_PARTS is not set
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_CONCAT=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_JEDECPROBE is not set
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MTDRAM is not set
+CONFIG_MTD_NAND=y
+# CONFIG_MTD_NAND_CAFE is not set
+# CONFIG_MTD_NAND_DISKONCHIP is not set
+# CONFIG_MTD_NAND_ECC_SMC is not set
+CONFIG_MTD_NAND_IDS=y
+# CONFIG_MTD_NAND_MUSEUM_IDS is not set
+# CONFIG_MTD_NAND_NANDSIM is not set
+# CONFIG_MTD_NAND_PLATFORM is not set
+CONFIG_MTD_NAND_RB4XX=y
+# CONFIG_MTD_NAND_VERIFY_WRITE is not set
+# CONFIG_MTD_ONENAND is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_PLATRAM is not set
+# CONFIG_MTD_PMC551 is not set
+# CONFIG_MTD_RAM is not set
+CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-2
+CONFIG_MTD_REDBOOT_PARTS=y
+CONFIG_MTD_REDBOOT_PARTS_READONLY=y
+CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED=y
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_NATSEMI is not set
+# CONFIG_NE2K_PCI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NO_IOPORT is not set
+# CONFIG_OCF_OCF is not set
+# CONFIG_PAGE_SIZE_16KB is not set
+CONFIG_PAGE_SIZE_4KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PCI=y
+# CONFIG_PCIPCWATCHDOG is not set
+CONFIG_PCI_DOMAINS=y
+CONFIG_PHYLIB=y
+# CONFIG_PMC_MSP is not set
+# CONFIG_PMC_YOSEMITE is not set
+# CONFIG_PNX8550_JBS is not set
+# CONFIG_PNX8550_STB810 is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_R6040 is not set
+# CONFIG_REALTEK_PHY is not set
+# CONFIG_RTC is not set
+CONFIG_RTC_LIB=y
+CONFIG_RWSEM_GENERIC_SPINLOCK=y
+CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
+CONFIG_SCSI_WAIT_SCAN=m
+# CONFIG_SERIAL_8250_EXTENDED is not set
+CONFIG_SERIAL_8250_NR_UARTS=1
+CONFIG_SERIAL_8250_RUNTIME_UARTS=1
+# CONFIG_SGI_IP22 is not set
+# CONFIG_SGI_IP27 is not set
+# CONFIG_SGI_IP28 is not set
+# CONFIG_SGI_IP32 is not set
+# CONFIG_SIBYTE_BIGSUR is not set
+# CONFIG_SIBYTE_CARMEL is not set
+# CONFIG_SIBYTE_CRHINE is not set
+# CONFIG_SIBYTE_CRHONE is not set
+# CONFIG_SIBYTE_LITTLESUR is not set
+# CONFIG_SIBYTE_RHONE is not set
+# CONFIG_SIBYTE_SENTOSA is not set
+# CONFIG_SIBYTE_SWARM is not set
+CONFIG_SLABINFO=y
+# CONFIG_SMSC_PHY is not set
+# CONFIG_SOFT_WATCHDOG is not set
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_SPI=y
+CONFIG_SPI_AR71XX=y
+CONFIG_SPI_BITBANG=y
+# CONFIG_SPI_GPIO is not set
+CONFIG_SPI_MASTER=y
+# CONFIG_SPI_SPIDEV is not set
+CONFIG_SSB_POSSIBLE=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_HAS_CPU_MIPS32_R2=y
+CONFIG_SYS_HAS_EARLY_PRINTK=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
+# CONFIG_TC35815 is not set
+# CONFIG_THERMAL is not set
+CONFIG_TICK_ONESHOT=y
+# CONFIG_TOSHIBA_JMR3927 is not set
+# CONFIG_TOSHIBA_RBTX4927 is not set
+# CONFIG_TOSHIBA_RBTX4938 is not set
+CONFIG_TRAD_SIGNALS=y
+# CONFIG_VGASTATE is not set
+# CONFIG_VIA_RHINE is not set
+CONFIG_VIDEO_V4L2_COMMON=m
+CONFIG_YAFFS_9BYTE_TAGS=y
+CONFIG_YAFFS_ALWAYS_CHECK_CHUNK_ERASED=y
+CONFIG_YAFFS_AUTO_YAFFS2=y
+CONFIG_YAFFS_CHECKPOINT_RESERVED_BLOCKS=0
+# CONFIG_YAFFS_DISABLE_LAZY_LOAD is not set
+# CONFIG_YAFFS_DISABLE_WIDE_TNODES is not set
+CONFIG_YAFFS_FS=y
+CONFIG_YAFFS_SHORT_NAMES_IN_RAM=y
+CONFIG_YAFFS_YAFFS1=y
+CONFIG_YAFFS_YAFFS2=y
+CONFIG_ZONE_DMA_FLAG=0

target/linux/ar71xx/files/arch/mips/ar71xx/Kconfig

@@ -0,0 +1,23 @@
+if ATHEROS_AR71XX
+
+config AR71XX_EARLY_SERIAL
+	bool "Use early serial console"
+	default n
+
+menu "Atheros AR71xx machine selection"
+
+config AR71XX_MACH_GENERIC
+	bool "Generic AR71xx based machine support"
+	default y
+
+config AR71XX_MACH_WP543
+	bool "Compex WP543 board support"
+	default y
+
+config AR71XX_MACH_RB_4XX
+	bool "MikroTik RouterBOARD 4xx series support"
+	default y
+
+endmenu
+
+endif

target/linux/ar71xx/files/arch/mips/ar71xx/Makefile

@@ -0,0 +1,15 @@
+#
+# Makefile for the Atheros AR71xx SoC specific parts of the kernel
+#
+# Copyright (C) 2008 Gabor Juhos <[email protected]>
+# Copyright (C) 2008 Imre Kaloz <[email protected]>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 as published
+# by the Free Software Foundation.
+
+obj-y	:= prom.o irq.o setup.o platform.o gpio.o ar71xx.o
+
+obj-$(CONFIG_AR71XX_MACH_GENERIC)	+= mach-generic.o
+obj-$(CONFIG_AR71XX_MACH_RB_4XX)	+= mach-rb-4xx.o
+obj-$(CONFIG_AR71XX_MACH_WP543)		+= mach-wp543.o

target/linux/ar71xx/files/arch/mips/ar71xx/ar71xx.c

@@ -0,0 +1,55 @@
+/*
+ *  AR71xx SoC routines
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+void __iomem *ar71xx_ddr_base;
+void __iomem *ar71xx_pll_base;
+void __iomem *ar71xx_reset_base;
+void __iomem *ar71xx_gpio_base;
+void __iomem *ar71xx_usb_ctrl_base;
+
+void ar71xx_device_stop(u32 mask)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	ar71xx_reset_wr(RESET_REG_RESET_MODULE,
+			ar71xx_reset_rr(RESET_REG_RESET_MODULE) | mask);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(ar71xx_device_stop);
+
+void ar71xx_device_start(u32 mask)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	ar71xx_reset_wr(RESET_REG_RESET_MODULE,
+			ar71xx_reset_rr(RESET_REG_RESET_MODULE) & ~mask);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(ar71xx_device_start);
+
+void ar71xx_ddr_flush(u32 reg)
+{
+	ar71xx_ddr_wr(reg, 1);
+	while ((ar71xx_ddr_rr(reg) & 0x1));
+
+	ar71xx_ddr_wr(reg, 1);
+	while ((ar71xx_ddr_rr(reg) & 0x1));
+}
+EXPORT_SYMBOL_GPL(ar71xx_ddr_flush);
+

target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c

@@ -0,0 +1,135 @@
+/*
+ *  Atheros AR71xx SoC GPIO API support
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+static DEFINE_SPINLOCK(ar71xx_gpio_lock);
+
+void __ar71xx_gpio_set_value(unsigned gpio, int value)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ar71xx_gpio_lock, flags);
+
+	if (value)
+		ar71xx_gpio_wr(GPIO_REG_SET, (1 << gpio));
+	else
+		ar71xx_gpio_wr(GPIO_REG_CLEAR, (1 << gpio));
+
+	spin_unlock_irqrestore(&ar71xx_gpio_lock, flags);
+}
+EXPORT_SYMBOL(__ar71xx_gpio_set_value);
+
+int __ar71xx_gpio_get_value(unsigned gpio)
+{
+	return (ar71xx_gpio_rr(GPIO_REG_IN) & (1 << gpio)) ? 1 : 0;
+}
+EXPORT_SYMBOL(__ar71xx_gpio_get_value);
+
+static int ar71xx_gpio_get_value(struct gpio_chip *chip, unsigned offset)
+{
+	return __ar71xx_gpio_get_value(offset);
+}
+
+static void ar71xx_gpio_set_value(struct gpio_chip *chip,
+				  unsigned offset, int value)
+{
+	__ar71xx_gpio_set_value(offset, value);
+}
+
+static int ar71xx_gpio_direction_input(struct gpio_chip *chip,
+				       unsigned offset)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ar71xx_gpio_lock, flags);
+
+	ar71xx_gpio_wr(GPIO_REG_OE,
+			ar71xx_gpio_rr(GPIO_REG_OE) & ~(1 << offset));
+
+	spin_unlock_irqrestore(&ar71xx_gpio_lock, flags);
+
+	return 0;
+}
+
+static int ar71xx_gpio_direction_output(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ar71xx_gpio_lock, flags);
+
+	if (value)
+		ar71xx_gpio_wr(GPIO_REG_SET, (1 << offset));
+	else
+		ar71xx_gpio_wr(GPIO_REG_CLEAR, (1 << offset));
+
+	ar71xx_gpio_wr(GPIO_REG_OE,
+			ar71xx_gpio_rr(GPIO_REG_OE) | (1 << offset));
+
+	spin_unlock_irqrestore(&ar71xx_gpio_lock, flags);
+
+	return 0;
+}
+
+static struct gpio_chip ar71xx_gpio_chip = {
+	.label			= "ar71xx",
+	.get			= ar71xx_gpio_get_value,
+	.set			= ar71xx_gpio_set_value,
+	.direction_input	= ar71xx_gpio_direction_input,
+	.direction_output	= ar71xx_gpio_direction_output,
+	.base			= 0,
+	.ngpio			= AR71XX_GPIO_COUNT,
+};
+
+void ar71xx_gpio_function_enable(u32 mask)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ar71xx_gpio_lock, flags);
+
+	ar71xx_gpio_wr(GPIO_REG_FUNC, ar71xx_gpio_rr(GPIO_REG_FUNC) | mask);
+
+	spin_unlock_irqrestore(&ar71xx_gpio_lock, flags);
+}
+
+void ar71xx_gpio_function_disable(u32 mask)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ar71xx_gpio_lock, flags);
+
+	ar71xx_gpio_wr(GPIO_REG_FUNC, ar71xx_gpio_rr(GPIO_REG_FUNC) & ~mask);
+
+	spin_unlock_irqrestore(&ar71xx_gpio_lock, flags);
+}
+
+void __init ar71xx_gpio_init(void)
+{
+	int err;
+
+	if (!request_mem_region(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE,
+				"AR71xx GPIO controller"))
+		panic("cannot allocate AR71xx GPIO registers page");
+
+	err = gpiochip_add(&ar71xx_gpio_chip);
+	if (err)
+		panic("cannot add AR71xx GPIO chip, error=%d", err);
+}

target/linux/ar71xx/files/arch/mips/ar71xx/irq.c

@@ -0,0 +1,285 @@
+/*
+ *  Atheros AR71xx SoC specific interrupt handling
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+
+#include <asm/irq_cpu.h>
+#include <asm/mipsregs.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+#ifdef CONFIG_PCI
+static void ar71xx_pci_irq_dispatch(void)
+{
+	u32 pending;
+
+	pending = ar71xx_reset_rr(RESET_REG_PCI_INT_STATUS) &
+	    ar71xx_reset_rr(RESET_REG_PCI_INT_ENABLE);
+
+	if (pending & PCI_INT_DEV0)
+		do_IRQ(AR71XX_PCI_IRQ_DEV0);
+
+	else if (pending & PCI_INT_DEV1)
+		do_IRQ(AR71XX_PCI_IRQ_DEV1);
+
+	else if (pending & PCI_INT_DEV2)
+		do_IRQ(AR71XX_PCI_IRQ_DEV2);
+
+	else
+		spurious_interrupt();
+}
+
+static void ar71xx_pci_irq_unmask(unsigned int irq)
+{
+	irq -= AR71XX_PCI_IRQ_BASE;
+	ar71xx_reset_wr(RESET_REG_PCI_INT_ENABLE,
+		ar71xx_reset_rr(RESET_REG_PCI_INT_ENABLE) | (1 << irq));
+}
+
+static void ar71xx_pci_irq_mask(unsigned int irq)
+{
+	irq -= AR71XX_PCI_IRQ_BASE;
+	ar71xx_reset_wr(RESET_REG_PCI_INT_ENABLE,
+		ar71xx_reset_rr(RESET_REG_PCI_INT_ENABLE) & ~(1 << irq));
+}
+
+static struct irq_chip ar71xx_pci_irq_chip = {
+	.name		= "AR71XX PCI ",
+	.mask		= ar71xx_pci_irq_mask,
+	.unmask		= ar71xx_pci_irq_unmask,
+	.mask_ack	= ar71xx_pci_irq_mask,
+};
+
+static struct irqaction ar71xx_pci_irqaction = {
+	.handler	= no_action,
+	.name		= "cascade [AR71XX PCI]",
+};
+
+static void __init ar71xx_pci_irq_init(void)
+{
+	int i;
+
+	ar71xx_reset_wr(RESET_REG_PCI_INT_ENABLE, 0);
+	ar71xx_reset_wr(RESET_REG_PCI_INT_STATUS, 0);
+
+	for (i = AR71XX_PCI_IRQ_BASE;
+	     i < AR71XX_PCI_IRQ_BASE + AR71XX_PCI_IRQ_COUNT; i++) {
+		irq_desc[i].status = IRQ_DISABLED;
+		set_irq_chip_and_handler(i, &ar71xx_pci_irq_chip,
+					 handle_level_irq);
+	}
+
+	setup_irq(AR71XX_CPU_IRQ_PCI, &ar71xx_pci_irqaction);
+}
+
+#endif /* CONFIG_PCI */
+
+static void ar71xx_gpio_irq_dispatch(void)
+{
+	u32 pending;
+
+	pending = ar71xx_gpio_rr(GPIO_REG_INT_PENDING)
+		& ar71xx_gpio_rr(GPIO_REG_INT_ENABLE);
+
+	if (pending)
+		do_IRQ(AR71XX_GPIO_IRQ_BASE + fls(pending) - 1);
+	else
+		spurious_interrupt();
+}
+
+static void ar71xx_gpio_irq_unmask(unsigned int irq)
+{
+	irq -= AR71XX_GPIO_IRQ_BASE;
+	ar71xx_gpio_wr(GPIO_REG_INT_ENABLE,
+			ar71xx_gpio_rr(GPIO_REG_INT_ENABLE) | (1 << irq));
+}
+
+static void ar71xx_gpio_irq_mask(unsigned int irq)
+{
+	irq -= AR71XX_GPIO_IRQ_BASE;
+	ar71xx_gpio_wr(GPIO_REG_INT_ENABLE,
+			ar71xx_gpio_rr(GPIO_REG_INT_ENABLE) & ~(1 << irq));
+}
+
+#if 0
+static int ar71xx_gpio_irq_set_type(unsigned int irq, unsigned int flow_type)
+{
+	/* TODO: implement */
+	return 0;
+}
+#else
+#define ar71xx_gpio_irq_set_type	NULL
+#endif
+
+struct irq_chip ar71xx_gpio_irq_chip = {
+	.name		= "AR71XX GPIO",
+	.unmask		= ar71xx_gpio_irq_unmask,
+	.mask		= ar71xx_gpio_irq_mask,
+	.mask_ack	= ar71xx_gpio_irq_mask,
+	.set_type	= ar71xx_gpio_irq_set_type,
+};
+
+static struct irqaction ar71xx_gpio_irqaction = {
+	.handler	= no_action,
+	.name		= "cascade [AR71XX GPIO]",
+};
+
+#define GPIO_IRQ_INIT_STATUS (IRQ_LEVEL | IRQ_TYPE_LEVEL_HIGH | IRQ_DISABLED)
+#define GPIO_INT_ALL	0xffff
+
+static void __init ar71xx_gpio_irq_init(void)
+{
+	int i;
+
+	ar71xx_gpio_wr(GPIO_REG_INT_ENABLE, 0);
+	ar71xx_gpio_wr(GPIO_REG_INT_PENDING, 0);
+
+	/* setup type of all GPIO interrupts to level sensitive */
+	ar71xx_gpio_wr(GPIO_REG_INT_TYPE, GPIO_INT_ALL);
+
+	/* setup polarity of all GPIO interrupts to active high */
+	ar71xx_gpio_wr(GPIO_REG_INT_POLARITY, GPIO_INT_ALL);
+
+	for (i = AR71XX_GPIO_IRQ_BASE;
+	     i < AR71XX_GPIO_IRQ_BASE + AR71XX_GPIO_IRQ_COUNT; i++) {
+		irq_desc[i].status = GPIO_IRQ_INIT_STATUS;
+		set_irq_chip_and_handler(i, &ar71xx_gpio_irq_chip,
+					 handle_level_irq);
+	}
+
+	setup_irq(AR71XX_MISC_IRQ_GPIO, &ar71xx_gpio_irqaction);
+}
+
+static void ar71xx_misc_irq_dispatch(void)
+{
+	u32 pending;
+
+	pending = ar71xx_reset_rr(RESET_REG_MISC_INT_STATUS)
+	    & ar71xx_reset_rr(RESET_REG_MISC_INT_ENABLE);
+
+	if (pending & MISC_INT_UART)
+		do_IRQ(AR71XX_MISC_IRQ_UART);
+
+	else if (pending & MISC_INT_DMA)
+		do_IRQ(AR71XX_MISC_IRQ_DMA);
+
+	else if (pending & MISC_INT_PERFC)
+		do_IRQ(AR71XX_MISC_IRQ_PERFC);
+
+	else if (pending & MISC_INT_TIMER)
+		do_IRQ(AR71XX_MISC_IRQ_TIMER);
+
+	else if (pending & MISC_INT_OHCI)
+		do_IRQ(AR71XX_MISC_IRQ_OHCI);
+
+	else if (pending & MISC_INT_ERROR)
+		do_IRQ(AR71XX_MISC_IRQ_ERROR);
+
+	else if (pending & MISC_INT_GPIO)
+		ar71xx_gpio_irq_dispatch();
+
+	else if (pending & MISC_INT_WDOG)
+		do_IRQ(AR71XX_MISC_IRQ_WDOG);
+
+	else
+		spurious_interrupt();
+}
+
+static void ar71xx_misc_irq_unmask(unsigned int irq)
+{
+	irq -= AR71XX_MISC_IRQ_BASE;
+	ar71xx_reset_wr(RESET_REG_MISC_INT_ENABLE,
+		ar71xx_reset_rr(RESET_REG_MISC_INT_ENABLE) | (1 << irq));
+}
+
+static void ar71xx_misc_irq_mask(unsigned int irq)
+{
+	irq -= AR71XX_MISC_IRQ_BASE;
+	ar71xx_reset_wr(RESET_REG_MISC_INT_ENABLE,
+		ar71xx_reset_rr(RESET_REG_MISC_INT_ENABLE) & ~(1 << irq));
+}
+
+struct irq_chip ar71xx_misc_irq_chip = {
+	.name		= "AR71XX MISC",
+	.unmask		= ar71xx_misc_irq_unmask,
+	.mask		= ar71xx_misc_irq_mask,
+	.mask_ack	= ar71xx_misc_irq_mask,
+};
+
+static struct irqaction ar71xx_misc_irqaction = {
+	.handler	= no_action,
+	.name		= "cascade [AR71XX MISC]",
+};
+
+static void __init ar71xx_misc_irq_init(void)
+{
+	int i;
+
+	ar71xx_reset_wr(RESET_REG_MISC_INT_ENABLE, 0);
+	ar71xx_reset_wr(RESET_REG_MISC_INT_STATUS, 0);
+
+	for (i = AR71XX_MISC_IRQ_BASE;
+	     i < AR71XX_MISC_IRQ_BASE + AR71XX_MISC_IRQ_COUNT; i++) {
+		irq_desc[i].status = IRQ_DISABLED;
+		set_irq_chip_and_handler(i, &ar71xx_misc_irq_chip,
+					 handle_level_irq);
+	}
+
+	setup_irq(AR71XX_CPU_IRQ_MISC, &ar71xx_misc_irqaction);
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	unsigned long pending;
+
+	pending = read_c0_status() & read_c0_cause() & ST0_IM;
+
+	if (pending & STATUSF_IP7)
+		do_IRQ(AR71XX_CPU_IRQ_TIMER);
+
+#ifdef CONFIG_PCI
+	else if (pending & STATUSF_IP2)
+		ar71xx_pci_irq_dispatch();
+#endif
+
+	else if (pending & STATUSF_IP4)
+		do_IRQ(AR71XX_CPU_IRQ_GE0);
+
+	else if (pending & STATUSF_IP5)
+		do_IRQ(AR71XX_CPU_IRQ_GE1);
+
+	else if (pending & STATUSF_IP3)
+		do_IRQ(AR71XX_CPU_IRQ_USB);
+
+	else if (pending & STATUSF_IP6)
+		ar71xx_misc_irq_dispatch();
+
+	else
+		spurious_interrupt();
+}
+
+void __init arch_init_irq(void)
+{
+	mips_cpu_irq_init();
+
+	ar71xx_misc_irq_init();
+
+#ifdef CONFIG_PCI
+	ar71xx_pci_irq_init();
+#endif
+
+	ar71xx_gpio_irq_init();
+}

target/linux/ar71xx/files/arch/mips/ar71xx/mach-generic.c

@@ -0,0 +1,61 @@
+/*
+ *  Generic AR71xx machine setup
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+
+#include <asm/mips_machine.h>
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/pci.h>
+#include <asm/mach-ar71xx/platform.h>
+
+static struct spi_board_info ar71xx_generic_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "m25p80",
+	}
+};
+
+static struct ar71xx_pci_irq ar71xx_generic_pci_irqs[] __initdata = {
+	{
+		.slot	= 0,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV0,
+	}, {
+		.slot	= 1,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV1,
+	}, {
+		.slot	= 2,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV2,
+	}
+};
+
+static void __init ar71xx_generic_init(void)
+{
+	ar71xx_add_device_spi(NULL, ar71xx_generic_spi_info,
+				ARRAY_SIZE(ar71xx_generic_spi_info));
+
+	ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x001f0000);
+	ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0xffffffff);
+
+	ar71xx_add_device_usb();
+
+	ar71xx_pci_init(ARRAY_SIZE(ar71xx_generic_pci_irqs),
+			ar71xx_generic_pci_irqs);
+}
+
+MIPS_MACHINE(MACH_AR71XX_GENERIC, "Generic AR71xx board", ar71xx_generic_init);

target/linux/ar71xx/files/arch/mips/ar71xx/mach-rb-4xx.c

@@ -0,0 +1,192 @@
+/*
+ *  MikroTik RouterBOARD 4xx series support
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/mmc/host.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/mmc_spi.h>
+#include <linux/leds.h>
+
+#include <asm/mips_machine.h>
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/pci.h>
+#include <asm/mach-ar71xx/platform.h>
+
+#define RB4XX_GPIO_USER_LED	4
+
+static struct gpio_led rb4xx_leds_gpio[] = {
+	{
+		.name		= "rb4xx:yellow:user",
+		.gpio		= RB4XX_GPIO_USER_LED,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_led_platform_data rb4xx_leds_gpio_data = {
+	.leds		= rb4xx_leds_gpio,
+	.num_leds	= ARRAY_SIZE(rb4xx_leds_gpio),
+};
+
+static struct platform_device rb4xx_leds_gpio_device = {
+	.name	= "leds-gpio",
+	.id	= -1,
+	.dev = {
+		.platform_data = &rb4xx_leds_gpio_data,
+	}
+};
+
+static struct platform_device rb4xx_nand_device = {
+	.name	= "rb4xx-nand",
+	.id	= -1,
+};
+
+static struct ar71xx_pci_irq rb4xx_pci_irqs[] __initdata = {
+	{
+		.slot	= 1,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV0,
+	}, {
+		.slot	= 1,
+		.pin	= 2,
+		.irq	= AR71XX_PCI_IRQ_DEV1,
+	}, {
+		.slot	= 2,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV1,
+	}, {
+		.slot	= 3,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV2,
+	}
+};
+
+#if 0
+/*
+ * SPI device support is experimental
+ */
+static struct flash_platform_data rb4xx_flash_data = {
+	.type	= "pm25lv512",
+};
+
+static struct spi_board_info rb4xx_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "m25p80",
+		.platform_data	= &rb4xx_flash_data,
+	}
+};
+
+static struct mmc_spi_platform_data rb433_mmc_data = {
+	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
+};
+
+static struct spi_board_info rb433_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "m25p80",
+		.platform_data	= &rb433_flash_data,
+	}, {
+		.bus_num	= 0,
+		.chip_select	= 2,
+		.max_speed_hz	= 25000000,
+		.modalias	= "mmc_spi",
+		.platform_data	= &rb433_mmc_data,
+	}
+};
+
+static u32 rb433_spi_get_ioc_base(u8 chip_select, int cs_high, int is_on)
+{
+	u32 ret;
+
+	if (is_on == AR71XX_SPI_CS_INACTIVE) {
+		ret = SPI_IOC_CS0 | SPI_IOC_CS1;
+	} else {
+		if (cs_high) {
+			ret = SPI_IOC_CS0 | SPI_IOC_CS1;
+		} else {
+			if ((chip_select ^ 2) == 0)
+				ret = SPI_IOC_CS1 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
+			else
+				ret = SPI_IOC_CS0 ^ (SPI_IOC_CS0 | SPI_IOC_CS1);
+		}
+	}
+
+	return ret;
+}
+
+struct ar71xx_spi_platform_data rb433_spi_data = {
+	.bus_num		= 0,
+	.num_chipselect		= 3,
+	.get_ioc_base		= rb433_spi_get_ioc_base,
+};
+
+static void rb4xx_add_device_spi(void)
+{
+	ar71xx_add_device_spi(NULL, rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
+}
+
+static void rb433_add_device_spi(void)
+{
+	ar71xx_add_device_spi(&rb433_spi_data, rb433_spi_info,
+				ARRAY_SIZE(rb433_spi_info));
+}
+#else
+static inline void rb4xx_add_device_spi(void) {}
+static inline void rb433_add_device_spi(void) {}
+#endif
+
+static void __init rb411_setup(void)
+{
+	rb4xx_add_device_spi();
+
+	ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
+
+	platform_device_register(&rb4xx_leds_gpio_device);
+	platform_device_register(&rb4xx_nand_device);
+
+	ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+}
+
+MIPS_MACHINE(MACH_AR71XX_RB_411, "MikroTik RouterBOARD 411/A/AH", rb411_setup);
+
+static void __init rb433_setup(void)
+{
+	rb433_add_device_spi();
+
+	ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
+	ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0xffffffff);
+
+	platform_device_register(&rb4xx_leds_gpio_device);
+	platform_device_register(&rb4xx_nand_device);
+
+	ar71xx_pci_init(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+}
+
+MIPS_MACHINE(MACH_AR71XX_RB_433, "MikroTik RouterBOARD 433/AH", rb433_setup);
+
+static void __init rb450_setup(void)
+{
+	rb4xx_add_device_spi();
+
+	ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
+	ar71xx_add_device_eth(1, PHY_INTERFACE_MODE_RMII, 0xffffffff);
+
+	platform_device_register(&rb4xx_leds_gpio_device);
+	platform_device_register(&rb4xx_nand_device);
+}
+
+MIPS_MACHINE(MACH_AR71XX_RB_450, "MikroTik RouterBOARD 450", rb450_setup);

target/linux/ar71xx/files/arch/mips/ar71xx/mach-wp543.c

@@ -0,0 +1,56 @@
+/*
+ *  Compex WP543 board support
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+
+#include <asm/mips_machine.h>
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/pci.h>
+#include <asm/mach-ar71xx/platform.h>
+
+static struct flash_platform_data wp543_flash_data = {
+	/* TODO: add partition map */
+};
+
+static struct spi_board_info wp543_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "m25p80",
+		.platform_data	= &wp543_flash_data,
+	}
+};
+
+static struct ar71xx_pci_irq wp543_pci_irqs[] __initdata = {
+	{
+		.slot	= 1,
+		.pin	= 1,
+		.irq	= AR71XX_PCI_IRQ_DEV0,
+	}, {
+		.slot	= 1,
+		.pin	= 2,
+		.irq	= AR71XX_PCI_IRQ_DEV1,
+	}
+};
+
+static void __init wp543_setup(void)
+{
+	ar71xx_add_device_spi(NULL, wp543_spi_info, ARRAY_SIZE(wp543_spi_info));
+
+	ar71xx_add_device_eth(0, PHY_INTERFACE_MODE_MII, 0x00000001);
+
+	ar71xx_pci_init(ARRAY_SIZE(wp543_pci_irqs), wp543_pci_irqs);
+}
+
+MIPS_MACHINE(MACH_AR71XX_WP543, "Compex WP543", wp543_setup);

target/linux/ar71xx/files/arch/mips/ar71xx/platform.c

@@ -0,0 +1,301 @@
+/*
+ *  Atheros AR71xx SoC platform devices
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/serial_8250.h>
+
+#include <asm/mips_machine.h>
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/platform.h>
+
+/*
+ * OHCI (USB full speed host controller)
+ */
+static struct resource ar71xx_usb_ohci_resources[] = {
+	[0] = {
+		.start	= AR71XX_OHCI_BASE,
+		.end	= AR71XX_OHCI_BASE + AR71XX_OHCI_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AR71XX_MISC_IRQ_OHCI,
+		.end	= AR71XX_MISC_IRQ_OHCI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 ar71xx_ohci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ar71xx_usb_ohci_device = {
+	.name		= "ar71xx-ohci",
+	.id		= 0,
+	.resource	= ar71xx_usb_ohci_resources,
+	.num_resources	= ARRAY_SIZE(ar71xx_usb_ohci_resources),
+	.dev = {
+		.dma_mask		= &ar71xx_ohci_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+/*
+ * EHCI (USB full speed host controller)
+ */
+static struct resource ar71xx_usb_ehci_resources[] = {
+	[0] = {
+		.start	= AR71XX_EHCI_BASE,
+		.end	= AR71XX_EHCI_BASE + AR71XX_EHCI_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AR71XX_CPU_IRQ_USB,
+		.end	= AR71XX_CPU_IRQ_USB,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static u64 ar71xx_ehci_dmamask = DMA_BIT_MASK(32);
+static struct platform_device ar71xx_usb_ehci_device = {
+	.name		= "ar71xx-ehci",
+	.id		= 0,
+	.resource	= ar71xx_usb_ehci_resources,
+	.num_resources	= ARRAY_SIZE(ar71xx_usb_ehci_resources),
+	.dev = {
+		.dma_mask		= &ar71xx_ehci_dmamask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+#define AR71XX_USB_RESET_MASK \
+	(RESET_MODULE_USB_HOST | RESET_MODULE_USB_PHY \
+	| RESET_MODULE_USB_OHCI_DLL)
+
+void __init ar71xx_add_device_usb(void)
+{
+	ar71xx_device_stop(AR71XX_USB_RESET_MASK);
+	mdelay(1000);
+	ar71xx_device_start(AR71XX_USB_RESET_MASK);
+
+	/* Turning on the Buff and Desc swap bits */
+	ar71xx_usb_ctrl_wr(USB_CTRL_REG_CONFIG, 0xf0000);
+
+	/* WAR for HW bug. Here it adjusts the duration between two SOFS */
+	ar71xx_usb_ctrl_wr(USB_CTRL_REG_FLADJ, 0x20c00);
+
+	mdelay(900);
+
+	platform_device_register(&ar71xx_usb_ohci_device);
+	platform_device_register(&ar71xx_usb_ehci_device);
+}
+
+#ifdef CONFIG_AR71XX_EARLY_SERIAL
+static void __init ar71xx_add_device_uart(void) {};
+#else
+static struct resource ar71xx_uart_resources[] = {
+	{
+		.start	= AR71XX_UART_BASE,
+		.end	= AR71XX_UART_BASE + AR71XX_UART_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+#define AR71XX_UART_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP)
+static struct plat_serial8250_port ar71xx_uart_data[] = {
+	{
+		.mapbase	= AR71XX_UART_BASE,
+		.irq		= AR71XX_MISC_IRQ_UART,
+		.flags		= AR71XX_UART_FLAGS,
+		.iotype		= UPIO_MEM32,
+		.regshift	= 2,
+	}, {
+		/* terminating entry */
+	}
+};
+
+static struct platform_device ar71xx_uart_device = {
+	.name		= "serial8250",
+	.id		= PLAT8250_DEV_PLATFORM,
+	.resource	= ar71xx_uart_resources,
+	.num_resources	= ARRAY_SIZE(ar71xx_uart_resources),
+	.dev = {
+		.platform_data	= ar71xx_uart_data
+	},
+};
+
+static void __init ar71xx_add_device_uart(void)
+{
+	ar71xx_uart_data[0].uartclk = ar71xx_ahb_freq;
+	platform_device_register(&ar71xx_uart_device);
+}
+#endif /* CONFIG_AR71XX_EARLY_SERIAL */
+
+static struct resource ar71xx_eth0_resources[] = {
+	{
+		.name	= "mac_base",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_GE0_BASE,
+		.end	= AR71XX_GE0_BASE + AR71XX_GE0_SIZE - 1,
+	}, {
+		.name	= "mii_ctrl",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_MII_BASE + MII_REG_MII0_CTRL,
+		.end	= AR71XX_MII_BASE + MII_REG_MII0_CTRL + 3,
+	}, {
+		.name	= "mac_irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= AR71XX_CPU_IRQ_GE0,
+		.end	= AR71XX_CPU_IRQ_GE0,
+	},
+};
+
+static struct ag71xx_platform_data ar71xx_eth0_data = {
+	.reset_bit	= RESET_MODULE_GE0_MAC,
+	.flush_reg	= DDR_REG_FLUSH_GE0,
+};
+
+static struct platform_device ar71xx_eth0_device = {
+	.name		= "ag71xx",
+	.id		= 0,
+	.resource	= ar71xx_eth0_resources,
+	.num_resources	= ARRAY_SIZE(ar71xx_eth0_resources),
+	.dev = {
+		.platform_data = &ar71xx_eth0_data,
+	},
+};
+
+static struct resource ar71xx_eth1_resources[] = {
+	{
+		.name	= "mac_base",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_GE1_BASE,
+		.end	= AR71XX_GE1_BASE + AR71XX_GE1_SIZE - 1,
+	}, {
+		.name	= "mii_ctrl",
+		.flags	= IORESOURCE_MEM,
+		.start	= AR71XX_MII_BASE + MII_REG_MII1_CTRL,
+		.end	= AR71XX_MII_BASE + MII_REG_MII1_CTRL + 3,
+	}, {
+		.name	= "mac_irq",
+		.flags	= IORESOURCE_IRQ,
+		.start	= AR71XX_CPU_IRQ_GE1,
+		.end	= AR71XX_CPU_IRQ_GE1,
+	},
+};
+
+static struct ag71xx_platform_data ar71xx_eth1_data = {
+	.reset_bit	= RESET_MODULE_GE1_MAC,
+	.flush_reg	= DDR_REG_FLUSH_GE1,
+};
+
+static struct platform_device ar71xx_eth1_device = {
+	.name		= "ag71xx",
+	.id		= 1,
+	.resource	= ar71xx_eth1_resources,
+	.num_resources	= ARRAY_SIZE(ar71xx_eth1_resources),
+	.dev = {
+		.platform_data = &ar71xx_eth1_data,
+	},
+};
+
+void __init ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
+				u32 phy_mask)
+{
+	struct platform_device *pdev;
+
+	switch (id) {
+	case 0:
+		switch (phy_if_mode) {
+		case PHY_INTERFACE_MODE_MII:
+			ar71xx_eth0_data.mii_if = MII0_CTRL_IF_MII;
+			break;
+		case PHY_INTERFACE_MODE_GMII:
+			ar71xx_eth0_data.mii_if = MII0_CTRL_IF_GMII;
+			break;
+		case PHY_INTERFACE_MODE_RGMII:
+			ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RGMII;
+			break;
+		case PHY_INTERFACE_MODE_RMII:
+			ar71xx_eth0_data.mii_if = MII0_CTRL_IF_RMII;
+			break;
+		default:
+			BUG();
+		}
+		ar71xx_eth0_data.phy_if_mode = phy_if_mode;
+		ar71xx_eth0_data.phy_mask = phy_mask;
+		pdev = &ar71xx_eth0_device;
+		break;
+	case 1:
+		switch (phy_if_mode) {
+		case PHY_INTERFACE_MODE_RMII:
+			ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RMII;
+			break;
+		case PHY_INTERFACE_MODE_RGMII:
+			ar71xx_eth1_data.mii_if = MII1_CTRL_IF_RGMII;
+			break;
+		default:
+			BUG();
+		}
+		ar71xx_eth1_data.phy_if_mode = phy_if_mode;
+		ar71xx_eth1_data.phy_mask = phy_mask;
+		pdev = &ar71xx_eth1_device;
+		break;
+	default:
+		pdev = NULL;
+		break;
+	}
+
+	if (pdev)
+		platform_device_register(pdev);
+}
+
+static struct resource ar71xx_spi_resources[] = {
+	[0] = {
+		.start	= AR71XX_SPI_BASE,
+		.end	= AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device ar71xx_spi_device = {
+	.name		= "ar71xx-spi",
+	.id		= -1,
+	.resource	= ar71xx_spi_resources,
+	.num_resources	= ARRAY_SIZE(ar71xx_spi_resources),
+};
+
+void __init ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
+				struct spi_board_info const *info,
+				unsigned n)
+{
+	ar71xx_gpio_function_enable(GPIO_FUNC_SPI_EN);
+
+	spi_register_board_info(info, n);
+	ar71xx_spi_device.dev.platform_data = pdata;
+	platform_device_register(&ar71xx_spi_device);
+}
+
+static int __init ar71xx_machine_setup(void)
+{
+	ar71xx_print_cmdline();
+
+	ar71xx_gpio_init();
+
+	ar71xx_add_device_uart();
+
+	mips_machine_setup();
+	return 0;
+}
+
+arch_initcall(ar71xx_machine_setup);

target/linux/ar71xx/files/arch/mips/ar71xx/prom.c

@@ -0,0 +1,126 @@
+/*
+ *  Atheros AR71xx SoC specific prom routines
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/serial_reg.h>
+
+#include <asm/bootinfo.h>
+#include <asm/addrspace.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+struct board_rec {
+	char		*name;
+	unsigned long	mach_type;
+};
+
+static int prom_argc __initdata;
+static char **prom_argv __initdata;
+static char **prom_envp __initdata;
+
+static struct board_rec boards[] __initdata = {
+	{
+		.name		= "411",
+		.mach_type	= MACH_AR71XX_RB_411,
+	}, {
+		.name		= "433",
+		.mach_type	= MACH_AR71XX_RB_433,
+	}, {
+		.name		= "450",
+		.mach_type	= MACH_AR71XX_RB_450,
+	}
+};
+
+char *(*prom_getenv)(const char *envname) __initdata;
+
+static __init char *dummy_getenv(const char *envname)
+{
+	return NULL;
+}
+
+static void __init routerboot_printargs(void)
+{
+	int i;
+
+	for (i = 0; i < prom_argc; i++)
+		printk(KERN_DEBUG "prom: routerboot envp[%d]: %s\n",
+				i, prom_envp[i]);
+}
+
+static __init char *routerboot_getenv(const char *envname)
+{
+	char **env;
+	int i = strlen(envname);
+
+	for (env = prom_envp; *env != NULL; env++)
+		if (strncmp(envname, *env, i) == 0 && (*env)[i] == '=')
+			return *env + i + 1;
+
+	return NULL;
+}
+
+static __init unsigned long find_board_byname(char *name)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(boards); i++)
+		if (strcmp(name, boards[i].name) == 0)
+			return boards[i].mach_type;
+
+	return MACH_AR71XX_GENERIC;
+}
+
+void __init prom_init(void)
+{
+	char *board;
+
+	printk(KERN_DEBUG "prom: fw_arg0=%08x, fw_arg1=%08x, "
+			"fw_arg2=%08x, fw_arg3=%08x\n",
+			(unsigned int)fw_arg0, (unsigned int)fw_arg1,
+			(unsigned int)fw_arg2, (unsigned int)fw_arg3);
+
+	prom_getenv = dummy_getenv;
+
+	if ((fw_arg0 == 7) && (fw_arg2 == 0)) {
+		prom_argc = fw_arg0;
+		prom_envp = (char **)fw_arg1;
+		prom_getenv = routerboot_getenv;
+		routerboot_printargs();
+	}
+
+	board = prom_getenv("board");
+	if (board)
+		mips_machtype = find_board_byname(board);
+	else
+		mips_machtype = MACH_AR71XX_GENERIC;
+
+	ar71xx_print_cmdline();
+}
+
+void __init prom_free_prom_memory(void)
+{
+	/* We do not have to prom memory to free */
+}
+
+#define UART_READ(r) \
+	__raw_readl((void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE) + 4 * (r)))
+
+#define UART_WRITE(r, v) \
+	__raw_writel((v), (void __iomem *)(KSEG1ADDR(AR71XX_UART_BASE) + 4*(r)))
+
+void prom_putchar(unsigned char ch)
+{
+	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
+	UART_WRITE(UART_TX, ch);
+	while (((UART_READ(UART_LSR)) & UART_LSR_THRE) == 0);
+}

target/linux/ar71xx/files/arch/mips/ar71xx/setup.c

@@ -0,0 +1,226 @@
+/*
+ *  Atheros AR71xx SoC specific setup
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/serial_8250.h>
+#include <linux/bootmem.h>
+
+#include <asm/bootinfo.h>
+#include <asm/traps.h>
+#include <asm/time.h>		/* for mips_hpt_frequency */
+#include <asm/reboot.h>		/* for _machine_{restart,halt} */
+
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/pci.h>
+#include <asm/mach-ar71xx/platform.h>
+
+#define AR71XX_SYS_TYPE_LEN	64
+#define AR71XX_BASE_FREQ	40000000
+
+#define AR71XX_MEM_SIZE_MIN	0x0200000
+#define AR71XX_MEM_SIZE_MAX	0x8000000
+
+u32 ar71xx_cpu_freq;
+EXPORT_SYMBOL_GPL(ar71xx_cpu_freq);
+
+u32 ar71xx_ahb_freq;
+EXPORT_SYMBOL_GPL(ar71xx_ahb_freq);
+
+u32 ar71xx_ddr_freq;
+EXPORT_SYMBOL_GPL(ar71xx_ddr_freq);
+
+int (*ar71xx_pci_bios_init)(unsigned nr_irqs,
+			     struct ar71xx_pci_irq *map) __initdata;
+
+int (*ar71xx_pci_be_handler)(int is_fixup);
+
+static char ar71xx_sys_type[AR71XX_SYS_TYPE_LEN];
+
+static void ar71xx_restart(char *command)
+{
+	ar71xx_device_stop(RESET_MODULE_FULL_CHIP);
+	for (;;)
+		if (cpu_wait)
+			cpu_wait();
+}
+
+static void ar71xx_halt(void)
+{
+	while (1)
+		cpu_wait();
+}
+
+static int ar71xx_be_handler(struct pt_regs *regs, int is_fixup)
+{
+	int err = 0;
+
+	if (ar71xx_pci_be_handler)
+		err = ar71xx_pci_be_handler(is_fixup);
+
+	return (is_fixup && !err) ? MIPS_BE_FIXUP : MIPS_BE_FATAL;
+}
+
+int __init ar71xx_pci_init(unsigned nr_irqs, struct ar71xx_pci_irq *map)
+{
+	if (!ar71xx_pci_bios_init)
+		return 0;
+
+	return ar71xx_pci_bios_init(nr_irqs, map);
+}
+
+static void __init ar71xx_detect_mem_size(void)
+{
+	volatile u8 *p;
+	u8 memsave;
+	u32 size;
+
+	p = (volatile u8 *) KSEG1ADDR(0);
+	memsave = *p;
+	for (size = AR71XX_MEM_SIZE_MIN;
+	     size <= (AR71XX_MEM_SIZE_MAX >> 1); size <<= 1) {
+		volatile u8 *r;
+
+		r = (p + size);
+		*p = 0x55;
+		if (*r == 0x55) {
+			/* Mirrored data found, try another pattern */
+			*p = 0xAA;
+			if (*r == 0xAA) {
+				/* Mirrored data found again, stop detection */
+				break;
+			}
+		}
+	}
+	*p = memsave;
+
+	add_memory_region(0, size, BOOT_MEM_RAM);
+}
+
+static void __init ar71xx_detect_sys_type(void)
+{
+	char *chip;
+	u32 id;
+	u32 rev;
+
+	id = ar71xx_reset_rr(RESET_REG_REV_ID) & REV_ID_MASK;
+	rev = (id >> REV_ID_REVISION_SHIFT) & REV_ID_REVISION_MASK;
+	switch (id & REV_ID_CHIP_MASK) {
+	case REV_ID_CHIP_AR7130:
+		chip = "7130";
+		break;
+	case REV_ID_CHIP_AR7141:
+		chip = "7141";
+		break;
+	case REV_ID_CHIP_AR7161:
+		chip = "7161";
+		break;
+	default:
+		chip = "71xx";
+	}
+
+	sprintf(ar71xx_sys_type, "Atheros AR%s rev %u (id:0x%02x)",
+		chip, rev, id);
+}
+
+static void __init ar71xx_detect_sys_frequency(void)
+{
+	u32 pll;
+	u32 freq;
+	u32 div;
+
+	pll = ar71xx_pll_rr(PLL_REG_CPU_PLL_CFG);
+
+	div = ((pll >> PLL_DIV_SHIFT) & PLL_DIV_MASK) + 1;
+	freq = div * AR71XX_BASE_FREQ;
+
+	div = ((pll >> CPU_DIV_SHIFT) & CPU_DIV_MASK) + 1;
+	ar71xx_cpu_freq = freq / div;
+
+	div = ((pll >> DDR_DIV_SHIFT) & DDR_DIV_MASK) + 1;
+	ar71xx_ddr_freq = freq / div;
+
+	div = (((pll >> AHB_DIV_SHIFT) & AHB_DIV_MASK) + 1) * 2;
+	ar71xx_ahb_freq = ar71xx_cpu_freq / div;
+}
+
+#ifdef CONFIG_AR71XX_EARLY_SERIAL
+static void __init ar71xx_early_serial_setup(void)
+{
+	struct uart_port p;
+
+	memset(&p, 0, sizeof(p));
+
+	p.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_IOREMAP;
+	p.iotype	= UPIO_MEM32;
+	p.uartclk	= ar71xx_ahb_freq;
+	p.irq		= AR71XX_MISC_IRQ_UART;
+	p.regshift	= 2;
+	p.mapbase	= AR71XX_UART_BASE;
+
+	early_serial_setup(&p);
+}
+#else
+static inline void ar71xx_early_serial_setup(void) {};
+#endif /* CONFIG_AR71XX_EARLY_SERIAL */
+
+const char *get_system_type(void)
+{
+	return ar71xx_sys_type;
+}
+
+unsigned int __cpuinit get_c0_compare_irq(void)
+{
+	return CP0_LEGACY_COMPARE_IRQ;
+}
+
+void __init plat_mem_setup(void)
+{
+	set_io_port_base(KSEG1);
+
+	ar71xx_ddr_base = ioremap_nocache(AR71XX_DDR_CTRL_BASE,
+						AR71XX_DDR_CTRL_SIZE);
+
+	ar71xx_pll_base = ioremap_nocache(AR71XX_PLL_BASE,
+						AR71XX_PLL_SIZE);
+
+	ar71xx_reset_base = ioremap_nocache(AR71XX_RESET_BASE,
+						AR71XX_RESET_SIZE);
+
+	ar71xx_gpio_base = ioremap_nocache(AR71XX_GPIO_BASE, AR71XX_GPIO_SIZE);
+
+	ar71xx_usb_ctrl_base = ioremap_nocache(AR71XX_USB_CTRL_BASE,
+						AR71XX_USB_CTRL_SIZE);
+
+	ar71xx_detect_mem_size();
+	ar71xx_detect_sys_type();
+	ar71xx_detect_sys_frequency();
+
+	_machine_restart = ar71xx_restart;
+	_machine_halt = ar71xx_halt;
+	pm_power_off = ar71xx_halt;
+
+	board_be_handler = ar71xx_be_handler;
+
+	ar71xx_print_cmdline();
+
+	ar71xx_early_serial_setup();
+}
+
+void __init plat_time_init(void)
+{
+	mips_hpt_frequency = ar71xx_cpu_freq / 2;
+}

target/linux/ar71xx/files/arch/mips/pci/pci-ar71xx.c

@@ -0,0 +1,346 @@
+/*
+ *  Atheros AR71xx PCI host controller driver
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/resource.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/bitops.h>
+#include <linux/pci.h>
+#include <linux/pci_regs.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/pci.h>
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt, args...)	printk(KERN_DEBUG fmt, ## args)
+#else
+#define DBG(fmt, args...)
+#endif
+
+#define AR71XX_PCI_DELAY	100 /* msecs */
+
+#if 0
+#define PCI_IDSEL_BASE	PCI_IDSEL_ADL_START
+#else
+#define PCI_IDSEL_BASE	0
+#endif
+
+static unsigned ar71xx_pci_nr_irqs;
+static struct ar71xx_pci_irq *ar71xx_pci_irq_map __initdata;
+static void __iomem *ar71xx_pcicfg_base;
+
+static DEFINE_SPINLOCK(ar71xx_pci_lock);
+
+static inline void ar71xx_pci_delay(void)
+{
+	mdelay(AR71XX_PCI_DELAY);
+}
+
+static inline u32 ar71xx_pcicfg_rr(unsigned int reg)
+{
+	return __raw_readl(ar71xx_pcicfg_base + reg);
+}
+
+static inline void ar71xx_pcicfg_wr(unsigned int reg, u32 val)
+{
+	__raw_writel(val, ar71xx_pcicfg_base + reg);
+}
+
+/* Byte lane enable bits */
+static u8 ble_table[4][4] = {
+	{0xf, 0xe, 0xd, 0xc},
+	{0xc, 0x9, 0x3, 0x1},
+	{0x0, 0x0, 0x0, 0x0},
+	{0x0, 0x0, 0x0, 0x0},
+};
+
+static inline u32 ar71xx_pci_get_ble(int where, int size, int local)
+{
+	u32 t;
+
+	t = ble_table[size][where & 3];
+	t <<= (local) ? 20 : 4;
+	return t;
+}
+
+static inline u32 ar71xx_pci_bus_addr(struct pci_bus *bus, unsigned int devfn,
+					int where)
+{
+	u32 ret;
+
+	if (!bus->number) {
+		/* type 0 */
+		ret = (1 << (PCI_IDSEL_BASE + PCI_SLOT(devfn)))
+		    | (PCI_FUNC(devfn) << 8) | (where & ~3);
+	} else {
+		/* type 1 */
+		ret = (bus->number << 16) | (PCI_SLOT(devfn) << 11)
+		    | (PCI_FUNC(devfn) << 8) | (where & ~3) | 1;
+	}
+
+	return ret;
+}
+
+static int __ar71xx_pci_be_handler(int is_fixup)
+{
+	u32 pci_err;
+	u32 ahb_err;
+
+	pci_err = ar71xx_pcicfg_rr(PCI_REG_PCI_ERR) & 3;
+	if (pci_err) {
+		if (!is_fixup)
+			printk(KERN_ALERT "PCI error %d at PCI addr 0x%x\n",
+				pci_err,
+				ar71xx_pcicfg_rr(PCI_REG_PCI_ERR_ADDR));
+
+		ar71xx_pcicfg_wr(PCI_REG_PCI_ERR, pci_err);
+	}
+
+	ahb_err = ar71xx_pcicfg_rr(PCI_REG_AHB_ERR) & 1;
+	if (ahb_err) {
+		if (!is_fixup)
+			printk(KERN_ALERT "AHB error at AHB address 0x%x\n",
+				ar71xx_pcicfg_rr(PCI_REG_AHB_ERR_ADDR));
+
+		ar71xx_pcicfg_wr(PCI_REG_AHB_ERR, ahb_err);
+	}
+
+	return ((ahb_err | pci_err) ? 1 : 0);
+}
+
+static inline int ar71xx_pci_set_cfgaddr(struct pci_bus *bus,
+			unsigned int devfn, int where, int size, u32 cmd)
+{
+	u32 addr;
+
+	addr = ar71xx_pci_bus_addr(bus, devfn, where);
+
+	DBG("PCI: set cfgaddr: %02x:%02x.%01x/%02x:%01d, addr=%08x\n",
+		bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn),
+		where, size, addr);
+
+	ar71xx_pcicfg_wr(PCI_REG_CFG_AD, addr);
+	ar71xx_pcicfg_wr(PCI_REG_CFG_CBE,
+			cmd | ar71xx_pci_get_ble(where, size, 0));
+
+	return __ar71xx_pci_be_handler(1);
+}
+
+static int ar71xx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+				  int where, int size, u32 *value)
+{
+	static u32 mask[8] = {0, 0xff, 0xffff, 0, 0xffffffff, 0, 0, 0};
+	unsigned long flags;
+	u32 data;
+	int ret;
+
+	ret = PCIBIOS_SUCCESSFUL;
+
+	DBG("PCI: read config: %02x:%02x.%01x/%02x:%01d\n", bus->number,
+			PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
+
+	spin_lock_irqsave(&ar71xx_pci_lock, flags);
+
+	if (bus->number == 0 && devfn == 0) {
+		u32 t;
+
+		t = PCI_CRP_CMD_READ | (where & ~3);
+
+		ar71xx_pcicfg_wr(PCI_REG_CRP_AD_CBE, t);
+		data = ar71xx_pcicfg_rr(PCI_REG_CRP_RDDATA);
+
+		DBG("PCI: rd local cfg, ad_cbe:%08x, data:%08x\n", t, data);
+
+	} else {
+		int err;
+
+		err = ar71xx_pci_set_cfgaddr(bus, devfn, where, size,
+						PCI_CFG_CMD_READ);
+
+		if (err == 0) {
+			data = ar71xx_pcicfg_rr(PCI_REG_CFG_RDDATA);
+		} else {
+			ret = PCIBIOS_DEVICE_NOT_FOUND;
+			data = ~0;
+		}
+	}
+
+	spin_unlock_irqrestore(&ar71xx_pci_lock, flags);
+
+	DBG("PCI: read config: data=%08x raw=%08x\n",
+		(data >> (8 * (where & 3))) & mask[size & 7], data);
+
+	*value = (data >> (8 * (where & 3))) & mask[size & 7];
+
+	return ret;
+}
+
+static int ar71xx_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+				   int where, int size, u32 value)
+{
+	unsigned long flags;
+	int ret;
+
+	DBG("PCI: write config: %02x:%02x.%01x/%02x:%01d value=%08x\n",
+		bus->number, PCI_SLOT(devfn), PCI_FUNC(devfn),
+		where, size, value);
+
+	value = value << (8 * (where & 3));
+	ret = PCIBIOS_SUCCESSFUL;
+
+	spin_lock_irqsave(&ar71xx_pci_lock, flags);
+	if (bus->number == 0 && devfn == 0) {
+		u32 t;
+
+		t = PCI_CRP_CMD_WRITE | (where & ~3);
+		t |= ar71xx_pci_get_ble(where, size, 1);
+
+		DBG("PCI: wr local cfg, ad_cbe:%08x, value:%08x\n", t, value);
+
+		ar71xx_pcicfg_wr(PCI_REG_CRP_AD_CBE, t);
+		ar71xx_pcicfg_wr(PCI_REG_CRP_WRDATA, value);
+	} else {
+		int err;
+
+		err = ar71xx_pci_set_cfgaddr(bus, devfn, where, size,
+						PCI_CFG_CMD_WRITE);
+
+		if (err == 0)
+			ar71xx_pcicfg_wr(PCI_REG_CFG_WRDATA, value);
+		else
+			ret = PCIBIOS_DEVICE_NOT_FOUND;
+	}
+	spin_unlock_irqrestore(&ar71xx_pci_lock, flags);
+
+	return ret;
+}
+
+static void ar71xx_pci_fixup(struct pci_dev *dev)
+{
+	u32 t;
+
+	if (dev->bus->number != 0 || dev->devfn != 0)
+		return;
+
+	DBG("PCI: fixup host controller %s (%04x:%04x)\n", pci_name(dev),
+		dev->vendor, dev->device);
+
+	/* setup COMMAND register */
+	t = PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER | PCI_COMMAND_INVALIDATE
+	  | PCI_COMMAND_PARITY | PCI_COMMAND_SERR | PCI_COMMAND_FAST_BACK;
+
+	pci_write_config_word(dev, PCI_COMMAND, t);
+}
+
+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ar71xx_pci_fixup);
+
+int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+{
+	int irq = -1;
+	int i;
+
+	slot -= PCI_IDSEL_ADL_START - PCI_IDSEL_BASE;
+
+	for (i = 0; i < ar71xx_pci_nr_irqs; i++) {
+		struct ar71xx_pci_irq *entry;
+
+		entry = &ar71xx_pci_irq_map[i];
+		if (entry->slot == slot && entry->pin == pin) {
+			irq = entry->irq;
+			break;
+		}
+	}
+
+	if (irq < 0) {
+		printk(KERN_ALERT "PCI: no irq found for pin%u@%s\n",
+				pin, pci_name((struct pci_dev *)dev));
+	} else {
+		printk(KERN_INFO "PCI: mapping irq %d to pin%u@%s\n",
+				irq, pin, pci_name((struct pci_dev *)dev));
+	}
+
+	return irq;
+}
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+	return 0;
+}
+
+static struct pci_ops ar71xx_pci_ops = {
+	.read	= ar71xx_pci_read_config,
+	.write	= ar71xx_pci_write_config,
+};
+
+static struct resource ar71xx_pci_io_resource = {
+	.name		= "PCI IO space",
+	.start		= 0,
+	.end		= 0,
+	.flags		= IORESOURCE_IO,
+};
+
+static struct resource ar71xx_pci_mem_resource = {
+	.name		= "PCI memory space",
+	.start		= AR71XX_PCI_MEM_BASE,
+	.end		= AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE - 1,
+	.flags		= IORESOURCE_MEM
+};
+
+static struct pci_controller ar71xx_pci_controller = {
+	.pci_ops	= &ar71xx_pci_ops,
+	.mem_resource	= &ar71xx_pci_mem_resource,
+	.io_resource	= &ar71xx_pci_io_resource,
+};
+
+static int __init __ar71xx_pci_bios_init(unsigned nr_irqs,
+					 struct ar71xx_pci_irq *map)
+{
+	ar71xx_device_stop(RESET_MODULE_PCI_BUS | RESET_MODULE_PCI_CORE);
+	ar71xx_pci_delay();
+
+	ar71xx_device_start(RESET_MODULE_PCI_BUS | RESET_MODULE_PCI_CORE);
+	ar71xx_pci_delay();
+
+	ar71xx_pcicfg_base = ioremap_nocache(AR71XX_PCI_CFG_BASE,
+						AR71XX_PCI_CFG_SIZE);
+
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN0, PCI_WIN0_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN1, PCI_WIN1_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN2, PCI_WIN2_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN3, PCI_WIN3_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN4, PCI_WIN4_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN5, PCI_WIN5_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN6, PCI_WIN6_OFFS);
+	ar71xx_ddr_wr(DDR_REG_PCI_WIN7, PCI_WIN7_OFFS);
+
+	ar71xx_pci_delay();
+
+	/* clear bus errors */
+	(void)__ar71xx_pci_be_handler(1);
+
+	ar71xx_pci_nr_irqs = nr_irqs;
+	ar71xx_pci_irq_map = map;
+	ar71xx_pci_be_handler = __ar71xx_pci_be_handler;
+
+	register_pci_controller(&ar71xx_pci_controller);
+
+	return 0;
+}
+
+static int __init __ar71xx_pci_init(void)
+{
+	ar71xx_pci_bios_init = __ar71xx_pci_bios_init;
+	return 0;
+}
+pure_initcall(__ar71xx_pci_init);

target/linux/ar71xx/files/drivers/mtd/nand/rb4xx_nand.c

@@ -0,0 +1,507 @@
+/*
+ *  NAND flash driver for the MikroTik RouterBoard 4xx series
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This file was based on the driver for Linux 2.6.22 published by
+ *  MikroTik for their RouterBoard 4xx series devices.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+#define DRV_NAME        "rb4xx-nand"
+#define DRV_VERSION     "0.1.9"
+#define DRV_DESC        "NAND flash driver for RouterBoard 4xx series"
+
+#define USE_FAST_READ	1
+#define USE_FAST_WRITE	1
+#undef RB4XX_NAND_DEBUG
+
+#ifdef RB4XX_NAND_DEBUG
+#define DBG(fmt, arg...)	printk(KERN_DEBUG DRV_NAME ": " fmt, ## arg)
+#else
+#define DBG(fmt, arg...)	do {} while (0)
+#endif
+
+#define RB4XX_NAND_GPIO_RDY	5
+#define RB4XX_FLASH_HZ		33333334
+#define RB4XX_NAND_HZ		33333334
+
+#define SPI_CTRL_FASTEST	0x40
+#define SPI_CTRL_SAFE		0x43	/* 25 MHz for AHB 200 MHz */
+#define SBIT_IOC_BASE		SPI_IOC_CS1
+#define SBIT_IOC_DO_SHIFT	0
+#define SBIT_IOC_DO		(1u << SBIT_IOC_DO_SHIFT)
+#define SBIT_IOC_DO2_SHIFT	18
+#define SBIT_IOC_DO2		(1u << SBIT_IOC_DO2_SHIFT)
+
+#define CPLD_CMD_WRITE_MULT	0x08	/* send cmd, n x send data, read data */
+#define CPLD_CMD_WRITE_CFG	0x09	/* send cmd, n x send cfg */
+#define CPLD_CMD_READ_MULT	0x0a	/* send cmd, send idle, n x read data */
+#define CPLD_CMD_READ_FAST	0x0b	/* send cmd, 4 x idle, n x read data */
+
+#define CFG_BIT_nCE	0x80
+#define CFG_BIT_CLE	0x40
+#define CFG_BIT_ALE	0x20
+#define CFG_BIT_FAN	0x10
+#define CFG_BIT_nLED4	0x08
+#define CFG_BIT_nLED3	0x04
+#define CFG_BIT_nLED2	0x02
+#define CFG_BIT_nLED1	0x01
+
+#define CFG_BIT_nLEDS \
+	(CFG_BIT_nLED1 | CFG_BIT_nLED2 | CFG_BIT_nLED3 | CFG_BIT_nLED4)
+
+struct rb4xx_nand_info {
+	struct nand_chip	chip;
+	struct mtd_info		mtd;
+};
+
+/*
+ * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
+ * will not be able to find the kernel that we load.
+ */
+static struct nand_ecclayout rb4xx_nand_ecclayout = {
+	.eccbytes	= 6,
+	.eccpos		= { 8, 9, 10, 13, 14, 15 },
+	.oobavail	= 9,
+	.oobfree	= { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
+};
+
+static struct mtd_partition rb4xx_nand_partitions[] = {
+	{
+		.name	= "kernel",
+		.offset	= (256 * 1024),
+		.size	= (4 * 1024 * 1024) - (256 * 1024),
+	},
+	{
+		.name	= "rootfs",
+		.offset	= MTDPART_OFS_NXTBLK,
+		.size	= MTDPART_SIZ_FULL,
+	},
+	{
+		.name	= "booter",
+		.offset	= 0,
+		.size	= (256 * 1024),
+		.mask_flags = MTD_WRITEABLE,
+	}
+};
+
+#if USE_FAST_READ
+#define SPI_NDATA_BASE	0x00800000
+static unsigned spi_ctrl_fread = SPI_CTRL_SAFE;
+static unsigned spi_ctrl_flash = SPI_CTRL_SAFE;
+extern unsigned mips_hpt_frequency;
+#endif
+
+static inline unsigned rb4xx_spi_rreg(unsigned r)
+{
+	return __raw_readl((void * __iomem)(KSEG1ADDR(AR71XX_SPI_BASE) + r));
+}
+
+static inline void rb4xx_spi_wreg(unsigned r, unsigned v)
+{
+	__raw_writel(v, (void * __iomem)(KSEG1ADDR(AR71XX_SPI_BASE) + r));
+}
+
+static inline void do_spi_clk(int bit)
+{
+	unsigned bval = SBIT_IOC_BASE | (bit & 1);
+
+	rb4xx_spi_wreg(SPI_REG_IOC, bval);
+	rb4xx_spi_wreg(SPI_REG_IOC, bval | SPI_IOC_CLK);
+}
+
+static void do_spi_byte(uint8_t byte)
+{
+	do_spi_clk(byte >> 7);
+	do_spi_clk(byte >> 6);
+	do_spi_clk(byte >> 5);
+	do_spi_clk(byte >> 4);
+	do_spi_clk(byte >> 3);
+	do_spi_clk(byte >> 2);
+	do_spi_clk(byte >> 1);
+	do_spi_clk(byte);
+
+	DBG("spi_byte sent 0x%02x got 0x%x\n",
+					byte, rb4xx_spi_rreg(SPI_REG_RDS));
+}
+
+#if USE_FAST_WRITE
+static inline void do_spi_clk_fast(int bit1, int bit2)
+{
+	unsigned bval = (SBIT_IOC_BASE |
+			((bit1 << SBIT_IOC_DO_SHIFT) & SBIT_IOC_DO) |
+			((bit2 << SBIT_IOC_DO2_SHIFT) & SBIT_IOC_DO2));
+
+	rb4xx_spi_wreg(SPI_REG_IOC, bval);
+	rb4xx_spi_wreg(SPI_REG_IOC, bval | SPI_IOC_CLK);
+}
+
+static inline void do_spi_byte_fast(uint8_t byte)
+{
+	do_spi_clk_fast(byte >> 7, byte >> 6);
+	do_spi_clk_fast(byte >> 5, byte >> 4);
+	do_spi_clk_fast(byte >> 3, byte >> 2);
+	do_spi_clk_fast(byte >> 1, byte >> 0);
+
+	DBG("spi_byte_fast sent 0x%02x got 0x%x\n",
+					byte, rb4xx_spi_rreg(SPI_REG_RDS));
+}
+#else
+static inline void do_spi_byte_fast(uint8_t byte)
+{
+	do_spi_byte(byte);
+}
+#endif /* USE_FAST_WRITE */
+
+static int do_spi_cmd(unsigned cmd, unsigned sendCnt, const uint8_t *sendData,
+		unsigned recvCnt, uint8_t *recvData,
+		const uint8_t *verifyData, int fastWrite)
+{
+	unsigned i;
+
+	DBG("SPI cmd 0x%x send %u recv %u\n", cmd, sendCnt, recvCnt);
+
+	rb4xx_spi_wreg(SPI_REG_FS, SPI_FS_GPIO);
+	rb4xx_spi_wreg(SPI_REG_CTRL, SPI_CTRL_FASTEST);
+
+	do_spi_byte(cmd);
+#if 0
+	if (cmd == CPLD_CMD_READ_FAST) {
+		do_spi_byte(0x80);
+		do_spi_byte(0);
+		do_spi_byte(0);
+	}
+#endif
+	for (i = 0; i < sendCnt; ++i) {
+		if (fastWrite)
+			do_spi_byte_fast(sendData[i]);
+		else
+			do_spi_byte(sendData[i]);
+	}
+
+	for (i = 0; i < recvCnt; ++i) {
+		if (fastWrite)
+			do_spi_byte_fast(0);
+		else
+			do_spi_byte(0);
+
+		if (recvData) {
+			recvData[i] = rb4xx_spi_rreg(SPI_REG_RDS) & 0xff;
+		} else if (verifyData) {
+			if (verifyData[i] != (rb4xx_spi_rreg(SPI_REG_RDS)
+							 & 0xff))
+				break;
+		}
+	}
+
+	rb4xx_spi_wreg(SPI_REG_IOC, SBIT_IOC_BASE | SPI_IOC_CS0);
+	rb4xx_spi_wreg(SPI_REG_CTRL, spi_ctrl_flash);
+	rb4xx_spi_wreg(SPI_REG_FS, 0);
+
+	return i == recvCnt;
+}
+
+static int got_write = 1;
+
+static void rb4xx_nand_write_data(const uint8_t *byte, unsigned cnt)
+{
+	do_spi_cmd(CPLD_CMD_WRITE_MULT, cnt, byte, 1, NULL, NULL, 1);
+	got_write = 1;
+}
+
+static void rb4xx_nand_write_byte(uint8_t byte)
+{
+	rb4xx_nand_write_data(&byte, 1);
+}
+
+#if USE_FAST_READ
+static uint8_t *rb4xx_nand_read_getaddr(unsigned cnt)
+{
+	static unsigned nboffset = 0x100000;
+	unsigned addr;
+
+	if (got_write) {
+		nboffset = (nboffset + 31) & ~31;
+		if (nboffset >= 0x100000)	/* 1MB */
+			nboffset = 0;
+
+		got_write = 0;
+		rb4xx_spi_wreg(SPI_REG_FS, SPI_FS_GPIO);
+		rb4xx_spi_wreg(SPI_REG_CTRL, spi_ctrl_fread);
+		rb4xx_spi_wreg(SPI_REG_FS, 0);
+	}
+
+	addr = KSEG1ADDR(AR71XX_SPI_BASE + SPI_NDATA_BASE) + nboffset;
+	DBG("rb4xx_nand_read_getaddr 0x%x cnt 0x%x\n", addr, cnt);
+
+	nboffset += cnt;
+	return (uint8_t *)addr;
+}
+
+static void rb4xx_nand_read_data(uint8_t *buf, unsigned cnt)
+{
+	unsigned size32 = cnt & ~31;
+	unsigned remain = cnt & 31;
+
+	if (size32) {
+		uint8_t *addr = rb4xx_nand_read_getaddr(size32);
+		memcpy(buf, (void *)addr, size32);
+	}
+
+	if (remain) {
+		do_spi_cmd(CPLD_CMD_READ_MULT, 1, buf, remain,
+			   buf + size32, NULL, 0);
+	}
+}
+
+static int rb4xx_nand_verify_data(const uint8_t *buf, unsigned cnt)
+{
+	unsigned size32 = cnt & ~31;
+	unsigned remain = cnt & 31;
+
+	if (size32) {
+		uint8_t *addr = rb4xx_nand_read_getaddr(size32);
+		if (memcmp(buf, (void *)addr, size32) != 0)
+			return 0;
+	}
+
+	if (remain) {
+		return do_spi_cmd(CPLD_CMD_READ_MULT, 1, buf, remain,
+				  NULL, buf + size32, 0);
+	}
+	return 1;
+}
+#else /* USE_FAST_READ */
+static void rb4xx_nand_read_data(uint8_t *buf, unsigned cnt)
+{
+	do_spi_cmd(CPLD_CMD_READ_MULT, 1, buf, cnt, buf, NULL, 0);
+}
+
+static int rb4xx_nand_verify_data(const uint8_t *buf, unsigned cnt)
+{
+	return do_spi_cmd(CPLD_CMD_READ_MULT, 1, buf, cnt, NULL, buf, 0);
+}
+#endif /* USE_FAST_READ */
+
+static void rb4xx_nand_write_cfg(uint8_t byte)
+{
+	do_spi_cmd(CPLD_CMD_WRITE_CFG, 1, &byte, 0, NULL, NULL, 0);
+	got_write = 1;
+}
+
+static int rb4xx_nand_dev_ready(struct mtd_info *mtd)
+{
+	return gpio_get_value(RB4XX_NAND_GPIO_RDY);
+}
+
+static void rb4xx_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
+				unsigned int ctrl)
+{
+	if (ctrl & NAND_CTRL_CHANGE) {
+		uint8_t cfg = CFG_BIT_nLEDS;
+
+		cfg |= (ctrl & NAND_CLE) ? CFG_BIT_CLE : 0;
+		cfg |= (ctrl & NAND_ALE) ? CFG_BIT_ALE : 0;
+		cfg |= (ctrl & NAND_NCE) ? 0 : CFG_BIT_nCE;
+
+		rb4xx_nand_write_cfg(cfg);
+	}
+
+	if (cmd != NAND_CMD_NONE)
+		rb4xx_nand_write_byte(cmd);
+}
+
+static uint8_t rb4xx_nand_read_byte(struct mtd_info *mtd)
+{
+	uint8_t byte = 0;
+
+	rb4xx_nand_read_data(&byte, 1);
+	return byte;
+}
+
+static void rb4xx_nand_write_buf(struct mtd_info *mtd, const uint8_t *buf,
+				int len)
+{
+	rb4xx_nand_write_data(buf, len);
+}
+
+static void rb4xx_nand_read_buf(struct mtd_info *mtd, uint8_t *buf,
+				int len)
+{
+	rb4xx_nand_read_data(buf, len);
+}
+
+static int rb4xx_nand_verify_buf(struct mtd_info *mtd, const uint8_t *buf,
+				int len)
+{
+	if (!rb4xx_nand_verify_data(buf, len))
+		return -EFAULT;
+
+	return 0;
+}
+
+static unsigned get_spi_ctrl(unsigned hz_max, const char *name)
+{
+	unsigned div;
+
+	div = (ar71xx_ahb_freq - 1) / (2 * hz_max);
+	/*
+	 * CPU has a bug at (div == 0) - first bit read is random
+	 */
+	if (div == 0)
+		++div;
+
+	if (name) {
+		unsigned ahb_khz = (ar71xx_ahb_freq + 500) / 1000;
+		unsigned div_real = 2 * (div + 1);
+		printk(KERN_INFO "%s SPI clock %u kHz (AHB %u kHz / %u)\n",
+		       name,
+		       ahb_khz / div_real,
+		       ahb_khz, div_real);
+	}
+
+	return SPI_CTRL_FASTEST + div;
+}
+
+static int __init rb4xx_nand_probe(struct platform_device *pdev)
+{
+	struct rb4xx_nand_info	*info;
+	int ret;
+
+	printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n");
+
+	ret = gpio_request(RB4XX_NAND_GPIO_RDY, "NAND RDY");
+	if (ret) {
+		printk(KERN_ERR "rb4xx-nand: gpio request failed\n");
+		return ret;
+	}
+
+	ret = gpio_direction_input(RB4XX_NAND_GPIO_RDY);
+	if (ret) {
+		printk(KERN_ERR "rb4xx-nand: unable to set input mode "
+					"on gpio%d\n", RB4XX_NAND_GPIO_RDY);
+		goto err_free_gpio;
+	}
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info) {
+		printk(KERN_ERR "rb4xx-nand: no memory for private data\n");
+		ret = -ENOMEM;
+		goto err_free_gpio;
+	}
+
+#if USE_FAST_READ
+	spi_ctrl_fread = get_spi_ctrl(RB4XX_NAND_HZ, "NAND");
+#endif
+	spi_ctrl_flash = get_spi_ctrl(RB4XX_FLASH_HZ, "FLASH");
+
+	rb4xx_nand_write_cfg(CFG_BIT_nLEDS | CFG_BIT_nCE);
+
+	info->chip.priv	= &info;
+	info->mtd.priv	= &info->chip;
+	info->mtd.owner	= THIS_MODULE;
+
+	info->chip.cmd_ctrl	= rb4xx_nand_cmd_ctrl;
+	info->chip.dev_ready	= rb4xx_nand_dev_ready;
+	info->chip.read_byte	= rb4xx_nand_read_byte;
+	info->chip.write_buf	= rb4xx_nand_write_buf;
+	info->chip.read_buf	= rb4xx_nand_read_buf;
+	info->chip.verify_buf	= rb4xx_nand_verify_buf;
+
+	info->chip.chip_delay	= 25;
+	info->chip.ecc.mode	= NAND_ECC_SOFT;
+	info->chip.options	|= NAND_NO_AUTOINCR;
+
+	platform_set_drvdata(pdev, info);
+
+	ret = nand_scan_ident(&info->mtd, 1);
+	if (ret) {
+		ret = -ENXIO;
+		goto err_free_info;
+	}
+
+	if (info->mtd.writesize == 512)
+		info->chip.ecc.layout = &rb4xx_nand_ecclayout;
+
+	ret = nand_scan_tail(&info->mtd);
+	if (ret) {
+		return -ENXIO;
+		goto err_set_drvdata;
+	}
+
+#ifdef CONFIG_MTD_PARTITIONS
+	ret = add_mtd_partitions(&info->mtd, rb4xx_nand_partitions,
+				ARRAY_SIZE(rb4xx_nand_partitions));
+#else
+	ret = add_mtd_device(&info->mtd);
+#endif
+	if (ret)
+		goto err_release_nand;
+
+	return 0;
+
+err_release_nand:
+	nand_release(&info->mtd);
+err_set_drvdata:
+	platform_set_drvdata(pdev, NULL);
+err_free_info:
+	kfree(info);
+err_free_gpio:
+	gpio_free(RB4XX_NAND_GPIO_RDY);
+	return ret;
+}
+
+static int __devexit rb4xx_nand_remove(struct platform_device *pdev)
+{
+	struct rb4xx_nand_info *info = platform_get_drvdata(pdev);
+
+	nand_release(&info->mtd);
+	platform_set_drvdata(pdev, NULL);
+	kfree(info);
+
+	return 0;
+}
+
+static struct platform_driver rb4xx_nand_driver = {
+	.probe	= rb4xx_nand_probe,
+	.remove	= __devexit_p(rb4xx_nand_remove),
+	.driver	= {
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init rb4xx_nand_init(void)
+{
+	return platform_driver_register(&rb4xx_nand_driver);
+}
+
+static void __exit rb4xx_nand_exit(void)
+{
+	platform_driver_unregister(&rb4xx_nand_driver);
+}
+
+module_init(rb4xx_nand_init);
+module_exit(rb4xx_nand_exit);
+
+MODULE_DESCRIPTION(DRV_DESC);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR("Gabor Juhos <[email protected]>");
+MODULE_AUTHOR("Imre Kaloz <[email protected]>");
+MODULE_LICENSE("GPL v2");

target/linux/ar71xx/files/drivers/net/ag71xx/Kconfig

@@ -0,0 +1,7 @@
+config AG71XX
+	tristate "Atheros AR71xx built-in ethernet mac support"
+	depends on ATHEROS_AR71XX
+	select PHYLIB
+	help
+	  If you wish to compile a kernel for AR71xx/91xx and enable
+	  ethernet support, then you should always answer Y to this.

target/linux/ar71xx/files/drivers/net/ag71xx/Makefile

@@ -0,0 +1,7 @@
+#
+# Makefile for the Atheros AR71xx built-in ethernet macs
+#
+
+obj-$(CONFIG_AG71XX)	+= ag71xx.o
+
+ag71xx-objs	:= ag71xx_main.o ag71xx_mii.o ag71xx_ethtool.o

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h

@@ -0,0 +1,281 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef __AG71XX_H
+#define __AG71XX_H
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/ethtool.h>
+#include <linux/etherdevice.h>
+#include <linux/phy.h>
+#include <linux/skbuff.h>
+#include <linux/dma-mapping.h>
+
+#include <linux/bitops.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/platform.h>
+
+#define ETH_FCS_LEN	4
+
+#define AG71XX_DRV_NAME		"ag71xx"
+#define AG71XX_DRV_VERSION	"0.3.9"
+
+#define AG71XX_NAPI_TX		1
+
+#define AG71XX_NAPI_WEIGHT	64
+
+#define AG71XX_INT_ERR	(AG71XX_INT_RX_BE | AG71XX_INT_TX_BE)
+#define AG71XX_INT_TX	(AG71XX_INT_TX_PS)
+#define AG71XX_INT_RX	(AG71XX_INT_RX_PR | AG71XX_INT_RX_OF)
+
+#ifdef AG71XX_NAPI_TX
+#define AG71XX_INT_POLL	(AG71XX_INT_RX | AG71XX_INT_TX)
+#define AG71XX_INT_INIT	(AG71XX_INT_ERR | AG71XX_INT_POLL)
+#else
+#define AG71XX_INT_POLL	(AG71XX_INT_RX)
+#define AG71XX_INT_INIT	(AG71XX_INT_ERR | AG71XX_INT_POLL | AG71XX_INT_TX)
+#endif
+
+#define AG71XX_TX_FIFO_LEN	2048
+#define AG71XX_TX_MTU_LEN	1536
+#define AG71XX_RX_PKT_RESERVE	64
+#define AG71XX_RX_PKT_SIZE	\
+	(AG71XX_RX_PKT_RESERVE + ETH_HLEN + ETH_FRAME_LEN + ETH_FCS_LEN)
+
+#define AG71XX_TX_RING_SIZE	64
+#define AG71XX_TX_THRES_STOP	(AG71XX_TX_RING_SIZE - 4)
+#define AG71XX_TX_THRES_WAKEUP	\
+		(AG71XX_TX_RING_SIZE - (AG71XX_TX_RING_SIZE / 4))
+
+#define AG71XX_RX_RING_SIZE	128
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt, args...)	printk(KERN_DEBUG fmt, ## args)
+#else
+#define DBG(fmt, args...)	do {} while (0)
+#endif
+
+#define ag71xx_assert(_cond)						\
+do {									\
+	if (_cond)							\
+		break;							\
+	printk("%s,%d: assertion failed\n", __FILE__, __LINE__);	\
+	BUG();								\
+} while (0)
+
+struct ag71xx_desc {
+	u32	data;
+	u32	ctrl;
+#define DESC_EMPTY	BIT(31)
+#define DESC_MORE	BIT(24)
+#define DESC_PKTLEN_M	0x1fff
+	u32	next;
+};
+
+struct ag71xx_buf {
+	struct sk_buff	*skb;
+};
+
+struct ag71xx_ring {
+	struct ag71xx_buf	*buf;
+	struct ag71xx_desc	*descs;
+	dma_addr_t		descs_dma;
+	unsigned int		curr;
+	unsigned int		dirty;
+	unsigned int		size;
+};
+
+struct ag71xx {
+	void __iomem		*mac_base;
+	void __iomem		*mii_ctrl;
+
+	spinlock_t		lock;
+	struct platform_device	*pdev;
+	struct net_device	*dev;
+	struct napi_struct	napi;
+
+	struct ag71xx_ring	rx_ring;
+	struct ag71xx_ring	tx_ring;
+
+	struct phy_device	*phy_dev;
+	struct mii_bus		mii_bus;
+
+	unsigned int		link;
+	unsigned int		speed;
+	int 			duplex;
+};
+
+extern struct ethtool_ops ag71xx_ethtool_ops;
+
+extern int ag71xx_mdio_init(struct ag71xx *ag, int id);
+extern void ag71xx_mdio_cleanup(struct ag71xx *ag);
+extern int ag71xx_mii_peek(struct ag71xx *ag);
+extern void ag71xx_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if);
+extern void ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, unsigned int speed);
+extern void ag71xx_link_update(struct ag71xx *ag);
+
+static inline struct ag71xx_platform_data *ag71xx_get_pdata(struct ag71xx *ag)
+{
+	return ag->pdev->dev.platform_data;
+}
+
+static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value)
+{
+	__raw_writel(value, ag->mac_base + reg);
+}
+
+static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg)
+{
+	return __raw_readl(ag->mac_base + reg);
+}
+
+static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask)
+{
+	void __iomem *r = ag->mac_base + reg;
+
+	__raw_writel(__raw_readl(r) | mask, r);
+}
+
+static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask)
+{
+	void __iomem *r = ag->mac_base + reg;
+
+	__raw_writel(__raw_readl(r) & ~mask, r);
+}
+
+static inline int ag71xx_desc_empty(struct ag71xx_desc *desc)
+{
+	return ((desc->ctrl & DESC_EMPTY) != 0);
+}
+
+static inline int ag71xx_desc_pktlen(struct ag71xx_desc *desc)
+{
+	return (desc->ctrl & DESC_PKTLEN_M);
+}
+
+/* Register offsets */
+#define AG71XX_REG_MAC_CFG1	0x0000
+#define AG71XX_REG_MAC_CFG2	0x0004
+#define AG71XX_REG_MAC_IPG	0x0008
+#define AG71XX_REG_MAC_HDX	0x000c
+#define AG71XX_REG_MAC_MFL	0x0010
+#define AG71XX_REG_MII_CFG	0x0020
+#define AG71XX_REG_MII_CMD	0x0024
+#define AG71XX_REG_MII_ADDR	0x0028
+#define AG71XX_REG_MII_CTRL	0x002c
+#define AG71XX_REG_MII_STATUS	0x0030
+#define AG71XX_REG_MII_IND	0x0034
+#define AG71XX_REG_MAC_IFCTL	0x0038
+#define AG71XX_REG_MAC_ADDR1	0x0040
+#define AG71XX_REG_MAC_ADDR2	0x0044
+#define AG71XX_REG_FIFO_CFG0	0x0048
+#define AG71XX_REG_FIFO_CFG1	0x004c
+#define AG71XX_REG_FIFO_CFG2	0x0050
+#define AG71XX_REG_FIFO_CFG3	0x0054
+#define AG71XX_REG_FIFO_CFG4	0x0058
+#define AG71XX_REG_FIFO_CFG5	0x005c
+#define AG71XX_REG_FIFO_RAM0	0x0060
+#define AG71XX_REG_FIFO_RAM1	0x0064
+#define AG71XX_REG_FIFO_RAM2	0x0068
+#define AG71XX_REG_FIFO_RAM3	0x006c
+#define AG71XX_REG_FIFO_RAM4	0x0070
+#define AG71XX_REG_FIFO_RAM5	0x0074
+#define AG71XX_REG_FIFO_RAM6	0x0078
+#define AG71XX_REG_FIFO_RAM7	0x007c
+
+#define AG71XX_REG_TX_CTRL	0x0180
+#define AG71XX_REG_TX_DESC	0x0184
+#define AG71XX_REG_TX_STATUS	0x0188
+#define AG71XX_REG_RX_CTRL	0x018c
+#define AG71XX_REG_RX_DESC	0x0190
+#define AG71XX_REG_RX_STATUS	0x0194
+#define AG71XX_REG_INT_ENABLE	0x0198
+#define AG71XX_REG_INT_STATUS	0x019c
+
+#define MAC_CFG1_TXE		BIT(0)
+#define MAC_CFG1_STX		BIT(1)
+#define MAC_CFG1_RXE		BIT(2)
+#define MAC_CFG1_SRX		BIT(3)
+#define MAC_CFG1_LB		BIT(8)
+#define MAC_CFG1_SR		BIT(31)
+
+#define MAC_CFG2_FDX		BIT(0)
+#define MAC_CFG2_CRC_EN		BIT(1)
+#define MAC_CFG2_PAD_CRC_EN	BIT(2)
+#define MAC_CFG2_LEN_CHECK	BIT(4)
+#define MAC_CFG2_HUGE_FRAME_EN	BIT(5)
+#define MAC_CFG2_IF_1000	BIT(9)
+#define MAC_CFG2_IF_10_100	BIT(8)
+
+#define AG71XX_INT_TX_PS	BIT(0)
+#define AG71XX_INT_TX_UR	BIT(1)
+#define AG71XX_INT_TX_BE	BIT(3)
+#define AG71XX_INT_RX_PR	BIT(4)
+#define AG71XX_INT_RX_OF	BIT(6)
+#define AG71XX_INT_RX_BE	BIT(7)
+
+#define MAC_IFCTL_SPEED		BIT(16)
+
+#define MII_CFG_CLK_DIV_4	0
+#define MII_CFG_CLK_DIV_6	2
+#define MII_CFG_CLK_DIV_8	3
+#define MII_CFG_CLK_DIV_10	4
+#define MII_CFG_CLK_DIV_14	5
+#define MII_CFG_CLK_DIV_20	6
+#define MII_CFG_CLK_DIV_28	7
+
+#define MII_CMD_WRITE		0x0
+#define MII_CMD_READ		0x1
+#define MII_ADDR_S		8
+#define MII_IND_BUSY		BIT(0)
+#define MII_IND_INVALID		BIT(2)
+
+#define TX_CTRL_TXE		BIT(0)
+
+#define TX_STATUS_PS		BIT(0)
+#define TX_STATUS_UR		BIT(1)
+#define TX_STATUS_BE		BIT(3)
+
+#define RX_CTRL_RXE		BIT(0)
+
+#define RX_STATUS_PR		BIT(0)
+#define RX_STATUS_OF		BIT(1)
+#define RX_STATUS_BE		BIT(3)
+
+#define FIFO_CFG5_BYTE_PER_CLK	BIT(19)
+
+#define MII_CTRL_SPEED_S	4
+#define MII_CTRL_SPEED_M	3
+#define MII_CTRL_SPEED_10	0
+#define MII_CTRL_SPEED_100	1
+#define MII_CTRL_SPEED_1000	2
+
+static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints)
+{
+	ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints);
+}
+
+static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints)
+{
+	ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints);
+}
+
+#endif /* _AG71XX_H */

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ethtool.c

@@ -0,0 +1,55 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include "ag71xx.h"
+
+static int ag71xx_ethtool_get_settings(struct net_device *dev,
+				       struct ethtool_cmd *cmd)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_gset(phydev, cmd);
+}
+
+static int ag71xx_ethtool_set_settings(struct net_device *dev,
+				       struct ethtool_cmd *cmd)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return phy_ethtool_sset(phydev, cmd);
+}
+
+static void ag71xx_ethtool_get_drvinfo(struct net_device *dev,
+				       struct ethtool_drvinfo *info)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	strcpy(info->driver, ag->pdev->dev.driver->name);
+	strcpy(info->version, AG71XX_DRV_VERSION);
+	strcpy(info->bus_info, ag->pdev->dev.bus_id);
+}
+
+struct ethtool_ops ag71xx_ethtool_ops = {
+	.set_settings	= ag71xx_ethtool_set_settings,
+	.get_settings	= ag71xx_ethtool_get_settings,
+	.get_drvinfo	= ag71xx_ethtool_get_drvinfo,
+	.get_link	= ethtool_op_get_link,
+};

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c

@@ -0,0 +1,855 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include "ag71xx.h"
+
+static void ag71xx_dump_regs(struct ag71xx *ag)
+{
+	DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_MAC_CFG1),
+		ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
+		ag71xx_rr(ag, AG71XX_REG_MAC_IPG),
+		ag71xx_rr(ag, AG71XX_REG_MAC_HDX),
+		ag71xx_rr(ag, AG71XX_REG_MAC_MFL));
+	DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_MII_CFG),
+		ag71xx_rr(ag, AG71XX_REG_MII_CMD),
+		ag71xx_rr(ag, AG71XX_REG_MII_ADDR));
+	DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_MII_CTRL),
+		ag71xx_rr(ag, AG71XX_REG_MII_STATUS),
+		ag71xx_rr(ag, AG71XX_REG_MII_IND));
+	DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
+		ag71xx_rr(ag, AG71XX_REG_MAC_ADDR1),
+		ag71xx_rr(ag, AG71XX_REG_MAC_ADDR2));
+	DBG("%s: fifo_cfg0=%08x, fifo_cfg1=%08x, fifo_cfg2=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2));
+	DBG("%s: fifo_cfg3=%08x, fifo_cfg3=%08x, fifo_cfg5=%08x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
+}
+
+static void ag71xx_ring_free(struct ag71xx_ring *ring)
+{
+	kfree(ring->buf);
+
+	if (ring->descs)
+		dma_free_coherent(NULL, ring->size * sizeof(*ring->descs),
+				  ring->descs, ring->descs_dma);
+}
+
+static int ag71xx_ring_alloc(struct ag71xx_ring *ring, unsigned int size)
+{
+	int err;
+
+	ring->descs = dma_alloc_coherent(NULL, size * sizeof(*ring->descs),
+					 &ring->descs_dma,
+					 GFP_ATOMIC);
+	if (!ring->descs) {
+		err = -ENOMEM;
+		goto err;
+	}
+
+	ring->size = size;
+
+	ring->buf = kzalloc(size * sizeof(*ring->buf), GFP_KERNEL);
+	if (!ring->buf) {
+		err = -ENOMEM;
+		goto err;
+	}
+
+	return 0;
+
+err:
+	return err;
+}
+
+static void ag71xx_ring_tx_clean(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	struct net_device *dev = ag->dev;
+
+	while (ring->curr != ring->dirty) {
+		u32 i = ring->dirty % AG71XX_TX_RING_SIZE;
+
+		if (!ag71xx_desc_empty(&ring->descs[i])) {
+			ring->descs[i].ctrl = 0;
+			dev->stats.tx_errors++;
+		}
+
+		if (ring->buf[i].skb)
+			dev_kfree_skb_any(ring->buf[i].skb);
+
+		ring->buf[i].skb = NULL;
+
+		ring->dirty++;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+}
+
+static void ag71xx_ring_tx_init(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	int i;
+
+	for (i = 0; i < AG71XX_TX_RING_SIZE; i++) {
+		ring->descs[i].next = (u32) (ring->descs_dma +
+			sizeof(*ring->descs) * ((i + 1) % AG71XX_TX_RING_SIZE));
+
+		ring->descs[i].ctrl = DESC_EMPTY;
+		ring->buf[i].skb = NULL;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	ring->curr = 0;
+	ring->dirty = 0;
+}
+
+static void ag71xx_ring_rx_clean(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	int i;
+
+	if (!ring->buf)
+		return;
+
+	for (i = 0; i < AG71XX_RX_RING_SIZE; i++)
+		if (ring->buf[i].skb)
+			kfree_skb(ring->buf[i].skb);
+
+}
+
+static int ag71xx_ring_rx_init(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	unsigned int i;
+	int ret;
+
+	ret = 0;
+	for (i = 0; i < AG71XX_RX_RING_SIZE; i++)
+		ring->descs[i].next = (u32) (ring->descs_dma +
+			sizeof(*ring->descs) * ((i + 1) % AG71XX_RX_RING_SIZE));
+
+	for (i = 0; i < AG71XX_RX_RING_SIZE; i++) {
+		struct sk_buff *skb;
+
+		skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE);
+		if (!skb) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		skb->dev = ag->dev;
+		skb_reserve(skb, AG71XX_RX_PKT_RESERVE);
+
+		ring->buf[i].skb = skb;
+		ring->descs[i].data = virt_to_phys(skb->data);
+		ring->descs[i].ctrl = DESC_EMPTY;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	ring->curr = 0;
+	ring->dirty = 0;
+
+	return ret;
+}
+
+static int ag71xx_ring_rx_refill(struct ag71xx *ag)
+{
+	struct ag71xx_ring *ring = &ag->rx_ring;
+	unsigned int count;
+
+	count = 0;
+	for (; ring->curr - ring->dirty > 0; ring->dirty++) {
+		unsigned int i;
+
+		i = ring->dirty % AG71XX_RX_RING_SIZE;
+
+		if (ring->buf[i].skb == NULL) {
+			struct sk_buff *skb;
+
+			skb = dev_alloc_skb(AG71XX_RX_PKT_SIZE);
+			if (skb == NULL) {
+				printk(KERN_ERR "%s: no memory for skb\n",
+					ag->dev->name);
+				break;
+			}
+
+			skb_reserve(skb, AG71XX_RX_PKT_RESERVE);
+			skb->dev = ag->dev;
+			ring->buf[i].skb = skb;
+			ring->descs[i].data = virt_to_phys(skb->data);
+		}
+
+		ring->descs[i].ctrl = DESC_EMPTY;
+		count++;
+	}
+
+	/* flush descriptors */
+	wmb();
+
+	DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count);
+
+	return count;
+}
+
+static int ag71xx_rings_init(struct ag71xx *ag)
+{
+	int ret;
+
+	ret = ag71xx_ring_alloc(&ag->tx_ring, AG71XX_TX_RING_SIZE);
+	if (ret)
+		return ret;
+
+	ag71xx_ring_tx_init(ag);
+
+	ret = ag71xx_ring_alloc(&ag->rx_ring, AG71XX_RX_RING_SIZE);
+	if (ret)
+		return ret;
+
+	ret = ag71xx_ring_rx_init(ag);
+	return ret;
+}
+
+static void ag71xx_rings_cleanup(struct ag71xx *ag)
+{
+	ag71xx_ring_rx_clean(ag);
+	ag71xx_ring_free(&ag->rx_ring);
+
+	ag71xx_ring_tx_clean(ag);
+	ag71xx_ring_free(&ag->tx_ring);
+}
+
+static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac)
+{
+	u32 t;
+
+	t = (((u32) mac[0]) << 24) | (((u32) mac[1]) << 16)
+	  | (((u32) mac[2]) << 8) | ((u32) mac[2]);
+
+	ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t);
+
+	t = (((u32) mac[4]) << 24) | (((u32) mac[5]) << 16);
+	ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t);
+}
+
+#define MAC_CFG1_INIT	(MAC_CFG1_RXE | MAC_CFG1_TXE | MAC_CFG1_SRX \
+			| MAC_CFG1_STX)
+
+static void ag71xx_hw_init(struct ag71xx *ag)
+{
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+
+	ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR);
+	udelay(20);
+
+	ar71xx_device_stop(pdata->reset_bit);
+	mdelay(100);
+	ar71xx_device_start(pdata->reset_bit);
+	mdelay(100);
+
+	ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_INIT);
+
+	/* TODO: set max packet size */
+
+	ag71xx_sb(ag, AG71XX_REG_MAC_CFG2,
+		  MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK);
+
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, 0x00001f00);
+
+	ag71xx_mii_ctrl_set_if(ag, pdata->mii_if);
+
+	ag71xx_wr(ag, AG71XX_REG_MII_CFG, MII_CFG_CLK_DIV_28);
+
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, 0x0000ffff);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, 0x0007ffef);
+}
+
+static void ag71xx_hw_start(struct ag71xx *ag)
+{
+	/* start RX engine */
+	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
+
+	/* enable interrupts */
+	ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT);
+}
+
+static void ag71xx_hw_stop(struct ag71xx *ag)
+{
+	/* stop RX and TX */
+	ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0);
+	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0);
+
+	/* disable all interrupts */
+	ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0);
+}
+
+static int ag71xx_open(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	int ret;
+
+	ret = ag71xx_rings_init(ag);
+	if (ret)
+		goto err;
+
+	napi_enable(&ag->napi);
+
+	netif_carrier_off(dev);
+	if (ag->phy_dev) {
+		phy_start(ag->phy_dev);
+	} else {
+		ag->duplex = DUPLEX_FULL;
+		ag->speed = SPEED_100;
+		ag->link = 1;
+		ag71xx_link_update(ag);
+	}
+
+	ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma);
+	ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma);
+
+	ag71xx_hw_set_macaddr(ag, dev->dev_addr);
+
+	ag71xx_hw_start(ag);
+
+	netif_start_queue(dev);
+
+	return 0;
+
+err:
+	ag71xx_rings_cleanup(ag);
+	return ret;
+}
+
+static int ag71xx_stop(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&ag->lock, flags);
+
+	netif_stop_queue(dev);
+
+	ag71xx_hw_stop(ag);
+
+	netif_carrier_off(dev);
+	if (ag->phy_dev) {
+		phy_stop(ag->phy_dev);
+	} else {
+		ag->duplex = -1;
+		ag->link = 0;
+		ag->speed = 0;
+		ag71xx_link_update(ag);
+	}
+
+	napi_disable(&ag->napi);
+
+	spin_unlock_irqrestore(&ag->lock, flags);
+
+	ag71xx_rings_cleanup(ag);
+
+	return 0;
+}
+
+static int ag71xx_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	struct ag71xx_desc *desc;
+	unsigned long flags;
+	int i;
+
+	i = ring->curr % AG71XX_TX_RING_SIZE;
+	desc = &ring->descs[i];
+
+	spin_lock_irqsave(&ag->lock, flags);
+	ar71xx_ddr_flush(pdata->flush_reg);
+	spin_unlock_irqrestore(&ag->lock, flags);
+
+	if (!ag71xx_desc_empty(desc))
+		goto err_drop;
+
+	if (skb->len <= 0) {
+		DBG("%s: packet len is too small\n", ag->dev->name);
+		goto err_drop;
+	}
+
+	dma_cache_wback_inv((unsigned long)skb->data, skb->len);
+
+	ring->buf[i].skb = skb;
+
+	/* setup descriptor fields */
+	desc->data = virt_to_phys(skb->data);
+	desc->ctrl = (skb->len & DESC_PKTLEN_M);
+
+	/* flush descriptor */
+	wmb();
+
+	ring->curr++;
+	if (ring->curr == (ring->dirty + AG71XX_TX_THRES_STOP)) {
+		DBG("%s: tx queue full\n", ag->dev->name);
+		netif_stop_queue(dev);
+	}
+
+	DBG("%s: packet injected into TX queue\n", ag->dev->name);
+
+	/* enable TX engine */
+	ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE);
+
+	dev->trans_start = jiffies;
+
+	return 0;
+
+err_drop:
+	dev->stats.tx_dropped++;
+
+	dev_kfree_skb(skb);
+	return 0;
+}
+
+static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	struct mii_ioctl_data *data = (struct mii_ioctl_data *) &ifr->ifr_data;
+	struct ag71xx *ag = netdev_priv(dev);
+	int ret;
+
+	switch (cmd) {
+	case SIOCETHTOOL:
+		if (ag->phy_dev == NULL)
+			break;
+
+		spin_lock_irq(&ag->lock);
+		ret = phy_ethtool_ioctl(ag->phy_dev, (void *) ifr->ifr_data);
+		spin_unlock_irq(&ag->lock);
+		return ret;
+
+	case SIOCSIFHWADDR:
+		if (copy_from_user
+			(dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr)))
+			return -EFAULT;
+		return 0;
+
+	case SIOCGIFHWADDR:
+		if (copy_to_user
+			(ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr)))
+			return -EFAULT;
+		return 0;
+
+	case SIOCGMIIPHY:
+	case SIOCGMIIREG:
+	case SIOCSMIIREG:
+		if (ag->phy_dev == NULL)
+			break;
+
+		return phy_mii_ioctl(ag->phy_dev, data, cmd);
+
+	default:
+		break;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static void ag71xx_tx_packets(struct ag71xx *ag)
+{
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+	struct ag71xx_ring *ring = &ag->tx_ring;
+	unsigned int sent;
+
+	DBG("%s: processing TX ring\n", ag->dev->name);
+
+#ifdef AG71XX_NAPI_TX
+	ar71xx_ddr_flush(pdata->flush_reg);
+#endif
+
+	sent = 0;
+	while (ring->dirty != ring->curr) {
+		unsigned int i = ring->dirty % AG71XX_TX_RING_SIZE;
+		struct ag71xx_desc *desc = &ring->descs[i];
+		struct sk_buff *skb = ring->buf[i].skb;
+
+		if (!ag71xx_desc_empty(desc))
+			break;
+
+		ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS);
+
+		ag->dev->stats.tx_bytes += skb->len;
+		ag->dev->stats.tx_packets++;
+
+		dev_kfree_skb_any(skb);
+		ring->buf[i].skb = NULL;
+
+		ring->dirty++;
+		sent++;
+	}
+
+	DBG("%s: %d packets sent out\n", ag->dev->name, sent);
+
+	if ((ring->curr - ring->dirty) < AG71XX_TX_THRES_WAKEUP)
+		netif_wake_queue(ag->dev);
+
+}
+
+static int ag71xx_rx_packets(struct ag71xx *ag, int limit)
+{
+	struct net_device *dev = ag->dev;
+	struct ag71xx_ring *ring = &ag->rx_ring;
+#ifndef AG71XX_NAPI_TX
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+	unsigned long flags;
+#endif
+	int done = 0;
+
+#ifndef AG71XX_NAPI_TX
+	spin_lock_irqsave(&ag->lock, flags);
+	ar71xx_ddr_flush(pdata->flush_reg);
+	spin_unlock_irqrestore(&ag->lock, flags);
+#endif
+
+	DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n",
+			dev->name, limit, ring->curr, ring->dirty);
+
+	while (done < limit) {
+		unsigned int i = ring->curr % AG71XX_RX_RING_SIZE;
+		struct ag71xx_desc *desc = &ring->descs[i];
+		struct sk_buff *skb;
+		int pktlen;
+
+		if (ag71xx_desc_empty(desc))
+			break;
+
+		if ((ring->dirty + AG71XX_RX_RING_SIZE) == ring->curr) {
+			ag71xx_assert(0);
+			break;
+		}
+
+		skb = ring->buf[i].skb;
+		pktlen = ag71xx_desc_pktlen(desc);
+		pktlen -= ETH_FCS_LEN;
+
+		/* TODO: move it into the refill function */
+		dma_cache_wback_inv((unsigned long)skb->data, pktlen);
+		skb_put(skb, pktlen);
+
+		skb->dev = dev;
+		skb->protocol = eth_type_trans(skb, dev);
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+		netif_receive_skb(skb);
+
+		dev->last_rx = jiffies;
+		dev->stats.rx_packets++;
+		dev->stats.rx_bytes += pktlen;
+
+		ring->buf[i].skb = NULL;
+		done++;
+
+		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR);
+
+		ring->curr++;
+		if ((ring->curr - ring->dirty) > (AG71XX_RX_RING_SIZE / 4))
+			ag71xx_ring_rx_refill(ag);
+	}
+
+	ag71xx_ring_rx_refill(ag);
+
+	DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n",
+		dev->name, ring->curr, ring->dirty, done);
+
+	return done;
+}
+
+static int ag71xx_poll(struct napi_struct *napi, int limit)
+{
+	struct ag71xx *ag = container_of(napi, struct ag71xx, napi);
+#ifdef AG71XX_NAPI_TX
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+#endif
+	struct net_device *dev = ag->dev;
+	unsigned long flags;
+	u32 status;
+	int done;
+
+#ifdef AG71XX_NAPI_TX
+	ar71xx_ddr_flush(pdata->flush_reg);
+	ag71xx_tx_packets(ag);
+#endif
+
+	DBG("%s: processing RX ring\n", dev->name);
+	done = ag71xx_rx_packets(ag, limit);
+
+	/* TODO: add OOM handler */
+
+	status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS);
+	status &= AG71XX_INT_POLL;
+
+	if ((done < limit) && (!status)) {
+		DBG("%s: disable polling mode, done=%d, status=%x\n",
+			dev->name, done, status);
+
+		netif_rx_complete(dev, napi);
+
+		/* enable interrupts */
+		spin_lock_irqsave(&ag->lock, flags);
+		ag71xx_int_enable(ag, AG71XX_INT_POLL);
+		spin_unlock_irqrestore(&ag->lock, flags);
+		return 0;
+	}
+
+	if (status & AG71XX_INT_RX_OF) {
+		printk(KERN_ALERT "%s: rx owerflow, restarting dma\n",
+			dev->name);
+
+		/* ack interrupt */
+		ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF);
+		/* restart RX */
+		ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE);
+	}
+
+	DBG("%s: stay in polling mode, done=%d, status=%x\n",
+			dev->name, done, status);
+	return 1;
+}
+
+static irqreturn_t ag71xx_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct ag71xx *ag = netdev_priv(dev);
+	u32 status;
+
+	status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS);
+	status &= ag71xx_rr(ag, AG71XX_REG_INT_ENABLE);
+
+	if (unlikely(!status))
+		return IRQ_NONE;
+
+	if (unlikely(status & AG71XX_INT_ERR)) {
+		if (status & AG71XX_INT_TX_BE) {
+			ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE);
+			dev_err(&dev->dev, "TX BUS error\n");
+		}
+		if (status & AG71XX_INT_RX_BE) {
+			ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE);
+			dev_err(&dev->dev, "RX BUS error\n");
+		}
+	}
+
+#if 0
+	if (unlikely(status & AG71XX_INT_TX_UR)) {
+		ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_UR);
+		DBG("%s: TX underrun\n", dev->name);
+	}
+#endif
+
+#ifndef AG71XX_NAPI_TX
+	if (likely(status & AG71XX_INT_TX_PS))
+		ag71xx_tx_packets(ag);
+#endif
+
+	if (likely(status & AG71XX_INT_POLL)) {
+		ag71xx_int_disable(ag, AG71XX_INT_POLL);
+		DBG("%s: enable polling mode\n", dev->name);
+		netif_rx_schedule(dev, &ag->napi);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static void ag71xx_set_multicast_list(struct net_device *dev)
+{
+	/* TODO */
+}
+
+static int __init ag71xx_probe(struct platform_device *pdev)
+{
+	static u8 default_mac[ETH_ALEN] = {0x00, 0xba, 0xdb, 0xad, 0xba, 0xd0};
+	struct net_device *dev;
+	struct resource *res;
+	struct ag71xx *ag;
+	int err;
+
+	if (!pdev->dev.platform_data) {
+		dev_err(&pdev->dev, "no platform data specified\n");
+		err = -ENXIO;
+		goto err_out;
+	}
+
+	dev = alloc_etherdev(sizeof(*ag));
+	if (!dev) {
+		dev_err(&pdev->dev, "alloc_etherdev failed\n");
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	SET_NETDEV_DEV(dev, &pdev->dev);
+
+	ag = netdev_priv(dev);
+	ag->pdev = pdev;
+	ag->dev = dev;
+	spin_lock_init(&ag->lock);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base");
+	if (!res) {
+		dev_err(&pdev->dev, "no mac_base resource found\n");
+		err = -ENXIO;
+		goto err_out;
+	}
+
+	ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1);
+	if (!ag->mac_base) {
+		dev_err(&pdev->dev, "unable to ioremap mac_base\n");
+		err = -ENOMEM;
+		goto err_free_dev;
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mii_ctrl");
+	if (!res) {
+		dev_err(&pdev->dev, "no mii_ctrl resource found\n");
+		err = -ENXIO;
+		goto err_unmap_base;
+	}
+
+	ag->mii_ctrl = ioremap_nocache(res->start, res->end - res->start + 1);
+	if (!ag->mii_ctrl) {
+		dev_err(&pdev->dev, "unable to ioremap mii_ctrl\n");
+		err = -ENOMEM;
+		goto err_unmap_base;
+	}
+
+	dev->irq = platform_get_irq(pdev, 0);
+	err = request_irq(dev->irq, ag71xx_interrupt,
+			  IRQF_DISABLED | IRQF_SAMPLE_RANDOM,
+			  dev->name, dev);
+	if (err) {
+		dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq);
+		goto err_unmap_mii_ctrl;
+	}
+
+	dev->base_addr = (unsigned long)ag->mac_base;
+	dev->open = ag71xx_open;
+	dev->stop = ag71xx_stop;
+	dev->hard_start_xmit = ag71xx_hard_start_xmit;
+	dev->set_multicast_list = ag71xx_set_multicast_list;
+	dev->do_ioctl = ag71xx_do_ioctl;
+	dev->ethtool_ops = &ag71xx_ethtool_ops;
+
+	netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
+
+	memcpy(dev->dev_addr, default_mac, ETH_ALEN);
+	dev->dev_addr[5] += pdev->id & 0xff;
+
+	err = register_netdev(dev);
+	if (err) {
+		dev_err(&pdev->dev, "unable to register net device\n");
+		goto err_free_irq;
+	}
+
+	printk(KERN_INFO "%s: Atheros AG71xx at 0x%08lx, irq %d\n",
+	       dev->name, dev->base_addr, dev->irq);
+
+	ag71xx_dump_regs(ag);
+
+	ag71xx_hw_init(ag);
+
+	ag71xx_dump_regs(ag);
+
+	err = ag71xx_mdio_init(ag, pdev->id);
+	if (err)
+		goto err_unregister_netdev;
+
+	platform_set_drvdata(pdev, dev);
+
+	return 0;
+
+err_unregister_netdev:
+	unregister_netdev(dev);
+err_free_irq:
+	free_irq(dev->irq, dev);
+err_unmap_mii_ctrl:
+	iounmap(ag->mii_ctrl);
+err_unmap_base:
+	iounmap(ag->mac_base);
+err_free_dev:
+	kfree(dev);
+err_out:
+	platform_set_drvdata(pdev, NULL);
+	return err;
+}
+
+static int __exit ag71xx_remove(struct platform_device *pdev)
+{
+	struct net_device *dev = platform_get_drvdata(pdev);
+
+	if (dev) {
+		struct ag71xx *ag = netdev_priv(dev);
+
+		if (ag->phy_dev)
+			phy_disconnect(ag->phy_dev);
+		ag71xx_mdio_cleanup(ag);
+		unregister_netdev(dev);
+		free_irq(dev->irq, dev);
+		iounmap(ag->mii_ctrl);
+		iounmap(ag->mac_base);
+		kfree(dev);
+		platform_set_drvdata(pdev, NULL);
+	}
+
+	return 0;
+}
+
+static struct platform_driver ag71xx_driver = {
+	.probe		= ag71xx_probe,
+	.remove		= __exit_p(ag71xx_remove),
+	.driver = {
+		.name	= AG71XX_DRV_NAME,
+	}
+};
+
+static int __init ag71xx_module_init(void)
+{
+	return platform_driver_register(&ag71xx_driver);
+}
+
+static void __exit ag71xx_module_exit(void)
+{
+	platform_driver_unregister(&ag71xx_driver);
+}
+
+module_init(ag71xx_module_init);
+module_exit(ag71xx_module_exit);
+
+MODULE_VERSION(AG71XX_DRV_VERSION);
+MODULE_AUTHOR("Gabor Juhos <[email protected]>");
+MODULE_AUTHOR("Imre Kaloz <[email protected]>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" AG71XX_DRV_NAME);

target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_mii.c

@@ -0,0 +1,436 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include "ag71xx.h"
+
+#define AG71XX_MII_RETRY	1000
+#define AG71XX_MII_DELAY	5
+
+static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value)
+{
+	__raw_writel(value, ag->mii_ctrl);
+}
+
+static inline u32 ag71xx_mii_ctrl_rr(struct ag71xx *ag)
+{
+	return __raw_readl(ag->mii_ctrl);
+}
+
+void ag71xx_mii_ctrl_set_if(struct ag71xx *ag, unsigned int mii_if)
+{
+	u32 t;
+
+	t = ag71xx_mii_ctrl_rr(ag);
+	t &= ~(0x3);
+	t |= (mii_if & 0x3);
+	ag71xx_mii_ctrl_wr(ag, t);
+}
+
+void ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, unsigned int speed)
+{
+	u32 t;
+
+	t = ag71xx_mii_ctrl_rr(ag);
+	t &= ~(0x3 << 4);
+	t |= (speed & 0x3) << 4;
+	ag71xx_mii_ctrl_wr(ag, t);
+}
+
+static int ag71xx_mii_read(struct ag71xx *ag, int addr, int reg)
+{
+	int ret;
+	int i;
+
+	ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
+	ag71xx_wr(ag, AG71XX_REG_MII_ADDR,
+			((addr & 0xff) << MII_ADDR_S) | (reg & 0xff));
+	ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_READ);
+
+	i = AG71XX_MII_RETRY;
+	while (ag71xx_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
+		if (i-- == 0) {
+			printk(KERN_ERR "%s: mii_read timed out\n",
+				ag->dev->name);
+			ret = 0xffff;
+			goto out;
+		}
+		udelay(AG71XX_MII_DELAY);
+	}
+
+	ret = ag71xx_rr(ag, AG71XX_REG_MII_STATUS) & 0xffff;
+	ag71xx_wr(ag, AG71XX_REG_MII_CMD, MII_CMD_WRITE);
+
+	DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret);
+
+out:
+	return ret;
+}
+
+static void ag71xx_mii_write(struct ag71xx *ag, int addr, int reg, u16 val)
+{
+	int i;
+
+	DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val);
+
+	ag71xx_wr(ag, AG71XX_REG_MII_ADDR,
+			((addr & 0xff) << MII_ADDR_S) | (reg & 0xff));
+	ag71xx_wr(ag, AG71XX_REG_MII_CTRL, val);
+
+	i = AG71XX_MII_RETRY;
+	while (ag71xx_rr(ag, AG71XX_REG_MII_IND) & MII_IND_BUSY) {
+		if (i-- == 0) {
+			printk(KERN_ERR "%s: mii_write timed out\n",
+				ag->dev->name);
+			break;
+		}
+		udelay(AG71XX_MII_DELAY);
+	}
+}
+
+int ag71xx_mii_peek(struct ag71xx *ag)
+{
+	int cnt;
+	int i;
+
+	cnt = 0;
+	for (i = 0; i < PHY_MAX_ADDR; i++) {
+		u16 bmsr, id1, id2, bmcr, advert, lpa;
+
+		bmsr = ag71xx_mii_read(ag, i, MII_BMSR);
+		bmcr = ag71xx_mii_read(ag, i, MII_BMCR);
+		id1 = ag71xx_mii_read(ag, i, MII_PHYSID1);
+		id2 = ag71xx_mii_read(ag, i, MII_PHYSID2);
+		advert = ag71xx_mii_read(ag, i, MII_ADVERTISE);
+		lpa = ag71xx_mii_read(ag, i, MII_LPA);
+		DBG("%s: phy%02d bmsr=%04x, bmcr=%04x, "
+			"id=%04x.%04x, advertise=%04x, lpa=%04x\n",
+			ag->dev->name, i,
+			bmsr, bmcr, id1, id2, advert, lpa);
+
+		if ((bmsr | bmcr | id1 | id2 | advert | lpa) != 0)
+			cnt++;
+	}
+
+	return cnt;
+}
+
+#define PLL_SEC_CONFIG		0x18050004
+#define PLL_ETH0_INT_CLOCK	0x18050010
+#define PLL_ETH1_INT_CLOCK	0x18050014
+#define PLL_ETH_EXT_CLOCK	0x18050018
+
+#define ag7100_pll_shift(_ag)   (((_ag)->pdev->id) ? 19 : 17)
+#define ag7100_pll_offset(_ag)	(((_ag)->pdev->id) ? PLL_ETH1_INT_CLOCK \
+						   : PLL_ETH0_INT_CLOCK)
+
+static void ag71xx_set_pll(struct ag71xx *ag, u32 pll_val)
+{
+	void __iomem *pll_reg = ioremap_nocache(ag7100_pll_offset(ag), 4);
+	void __iomem *pll_cfg = ioremap_nocache(PLL_SEC_CONFIG, 4);
+	u32 s;
+	u32 t;
+
+	s = ag7100_pll_shift(ag);
+
+	t = __raw_readl(pll_cfg);
+	t &= ~(3 << s);
+	t |=  (2 << s);
+	__raw_writel(t, pll_cfg);
+	udelay(100);
+
+	__raw_writel(pll_val, pll_reg);
+
+	t |= (3 << s);
+	__raw_writel(t, pll_cfg);
+	udelay(100);
+
+	t &= ~(3 << s);
+	__raw_writel(t, pll_cfg);
+	udelay(100);
+	DBG("%s: pll_reg %#x: %#x\n", ag->dev->name,
+			(unsigned int)pll_reg, __raw_readl(pll_reg));
+
+	iounmap(pll_cfg);
+	iounmap(pll_reg);
+}
+
+static unsigned char *ag71xx_speed_str(struct ag71xx *ag)
+{
+	switch (ag->speed) {
+	case SPEED_1000:
+		return "1000";
+	case SPEED_100:
+		return "100";
+	case SPEED_10:
+		return "10";
+	}
+
+	return "?";
+}
+
+#if 1
+#define PLL_VAL_1000	0x00110000
+#define PLL_VAL_100	0x00001099
+#define PLL_VAL_10	0x00991099
+#else
+#define PLL_VAL_1000	0x01111000
+#define PLL_VAL_100	0x09991000
+#define PLL_VAL_10	0x09991999
+#endif
+
+void ag71xx_link_update(struct ag71xx *ag)
+{
+	u32 cfg2;
+	u32 ifctl;
+	u32 pll;
+	u32 fifo5;
+	u32 mii_speed;
+
+	if (!ag->link) {
+		netif_carrier_off(ag->dev);
+		printk(KERN_INFO "%s: link down\n", ag->dev->name);
+		return;
+	}
+
+	cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2);
+	cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX);
+	cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0;
+
+	ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL);
+	ifctl &= ~(MAC_IFCTL_SPEED);
+
+	fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5);
+	fifo5 &= ~FIFO_CFG5_BYTE_PER_CLK;
+
+	switch (ag->speed) {
+	case SPEED_1000:
+		mii_speed =  MII_CTRL_SPEED_1000;
+		cfg2 |= MAC_CFG2_IF_1000;
+		pll = PLL_VAL_1000;
+		fifo5 |= FIFO_CFG5_BYTE_PER_CLK;
+		break;
+	case SPEED_100:
+		mii_speed = MII_CTRL_SPEED_100;
+		cfg2 |= MAC_CFG2_IF_10_100;
+		ifctl |= MAC_IFCTL_SPEED;
+		pll = PLL_VAL_100;
+		break;
+	case SPEED_10:
+		mii_speed = MII_CTRL_SPEED_10;
+		cfg2 |= MAC_CFG2_IF_10_100;
+		pll = PLL_VAL_10;
+		break;
+	default:
+		BUG();
+		return;
+	}
+
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x008001ff);
+	ag71xx_set_pll(ag, pll);
+	ag71xx_mii_ctrl_set_speed(ag, mii_speed);
+
+	ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
+	ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
+	ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
+
+	netif_carrier_on(ag->dev);
+	printk(KERN_INFO "%s: link up (%sMbps/%s duplex)\n",
+		ag->dev->name,
+		ag71xx_speed_str(ag),
+		(DUPLEX_FULL == ag->duplex) ? "Full" : "Half");
+
+	DBG("%s: fifo1=%#x, fifo2=%#x, fifo3=%#x, fifo4=%#x, fifo5=%#x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4),
+		ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5));
+
+	DBG("%s: mac_cfg2=%#x, ifctl=%#x, mii_ctrl=%#x\n",
+		ag->dev->name,
+		ag71xx_rr(ag, AG71XX_REG_MAC_CFG2),
+		ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL),
+		ag71xx_mii_ctrl_rr(ag));
+}
+
+static void ag71xx_link_adjust(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+	unsigned long flags;
+	int status_change = 0;
+
+	spin_lock_irqsave(&ag->lock, flags);
+
+	if (phydev->link) {
+		if (ag->duplex != phydev->duplex
+		    || ag->speed != phydev->speed) {
+			status_change = 1;
+		}
+	}
+
+	if (phydev->link != ag->link) {
+		if (phydev->link)
+			netif_schedule(dev);
+
+		status_change = 1;
+	}
+
+	ag->link = phydev->link;
+	ag->duplex = phydev->duplex;
+	ag->speed = phydev->speed;
+
+	if (status_change)
+		ag71xx_link_update(ag);
+
+	spin_unlock_irqrestore(&ag->lock, flags);
+}
+
+static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg)
+{
+	struct ag71xx *ag = bus->priv;
+
+	return ag71xx_mii_read(ag, addr, reg);
+}
+
+static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val)
+{
+	struct ag71xx *ag = bus->priv;
+
+	ag71xx_mii_write(ag, addr, reg, val);
+	return 0;
+}
+
+static int ag71xx_mdio_reset(struct mii_bus *bus)
+{
+	/* TODO */
+	return 0;
+}
+
+static int ag71xx_mdio_probe(struct ag71xx *ag)
+{
+	struct net_device *dev = ag->dev;
+	struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag);
+	struct phy_device *phydev = NULL;
+	int phy_count = 0;
+	int phy_addr;
+
+	for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) {
+		if (!(pdata->phy_mask & (1 << phy_addr)))
+			continue;
+
+		if (ag->mii_bus.phy_map[phy_addr] == NULL)
+			continue;
+
+		DBG("%s: PHY found at %s, uid=%08x\n",
+			dev->name,
+			ag->mii_bus.phy_map[phy_addr]->dev.bus_id,
+			ag->mii_bus.phy_map[phy_addr]->phy_id);
+
+		if (phydev == NULL)
+			phydev = ag->mii_bus.phy_map[phy_addr];
+
+		phy_count++;
+	}
+
+	switch (phy_count) {
+	case 0:
+		printk(KERN_ERR "%s: no PHY found\n", dev->name);
+		return -ENODEV;
+	case 1:
+		ag->phy_dev = phy_connect(dev, phydev->dev.bus_id,
+			&ag71xx_link_adjust, 0, pdata->phy_if_mode);
+
+		if (IS_ERR(ag->phy_dev)) {
+			printk(KERN_ERR "%s: could not connect to PHY at %s\n",
+				dev->name, phydev->dev.bus_id);
+			return PTR_ERR(ag->phy_dev);
+		}
+
+		/* mask with MAC supported features */
+		phydev->supported &= (SUPPORTED_10baseT_Half
+			| SUPPORTED_10baseT_Full
+			| SUPPORTED_100baseT_Half
+			| SUPPORTED_100baseT_Full
+			| SUPPORTED_Autoneg
+			| SUPPORTED_MII
+			| SUPPORTED_TP);
+
+		phydev->advertising = phydev->supported;
+
+		printk(KERN_DEBUG "%s: connected to PHY at %s "
+			"[uid=%08x, driver=%s]\n",
+			dev->name, phydev->dev.bus_id,
+			phydev->phy_id, phydev->drv->name);
+
+		ag->link = 0;
+		ag->speed = 0;
+		ag->duplex = -1;
+		break;
+	default:
+		ag->phy_dev = NULL;
+		printk(KERN_DEBUG "%s: connected to multiple PHYs (%d)\n",
+			dev->name, phy_count);
+		break;
+	}
+
+	return 0;
+}
+
+int ag71xx_mdio_init(struct ag71xx *ag, int id)
+{
+	int err;
+	int i;
+
+	ag->mii_bus.name = "ag71xx_mii";
+	ag->mii_bus.read = ag71xx_mdio_read;
+	ag->mii_bus.write = ag71xx_mdio_write;
+	ag->mii_bus.reset = ag71xx_mdio_reset;
+	ag->mii_bus.id = id;
+	ag->mii_bus.priv = ag;
+	ag->mii_bus.dev = &ag->dev->dev;
+
+	ag->mii_bus.irq = kmalloc(sizeof(*ag->mii_bus.irq) * PHY_MAX_ADDR,
+				  GFP_KERNEL);
+	if (!ag->mii_bus.irq) {
+		err = -ENOMEM;
+		goto err_out;
+	}
+
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		ag->mii_bus.irq[i] = PHY_POLL;
+
+	err = mdiobus_register(&ag->mii_bus);
+	if (err)
+		goto err_free_irqs;
+
+	err = ag71xx_mdio_probe(ag);
+	if (err)
+		goto err_unregister_bus;
+
+	return 0;
+
+err_unregister_bus:
+	mdiobus_unregister(&ag->mii_bus);
+err_free_irqs:
+	kfree(ag->mii_bus.irq);
+err_out:
+	return err;
+}
+
+void ag71xx_mdio_cleanup(struct ag71xx *ag)
+{
+	mdiobus_unregister(&ag->mii_bus);
+	kfree(ag->mii_bus.irq);
+}

target/linux/ar71xx/files/drivers/net/phy/micrel.c

@@ -0,0 +1,82 @@
+/*
+ *  Driver for Micrel/Kendin PHYs
+ *
+ *  Copyright (c) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+#include <linux/phy.h>
+
+#define KSZ_REG_INT_CTRL	0x1b
+
+#define KSZ_INT_LU_EN	(1 << 8)	/* enable Link Up interrupt */
+#define KSZ_INT_RF_EN	(1 << 9)	/* enable Remote Fault interrupt */
+#define KSZ_INT_LD_EN	(1 << 10)	/* enable Link Down interrupt */
+
+#define KSZ_INT_INIT	(KSZ_INT_LU_EN | KSZ_INT_LD_EN)
+
+static int ksz8041_ack_interrupt(struct phy_device *phydev)
+{
+	int err;
+
+	err = phy_read(phydev, KSZ_REG_INT_CTRL);
+
+	return (err < 0) ? err : 0;
+}
+
+static int ksz8041_config_intr(struct phy_device *phydev)
+{
+	int err;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+		err = phy_write(phydev, KSZ_REG_INT_CTRL,
+				KSZ_INT_INIT);
+	else
+		err = phy_write(phydev, KSZ_REG_INT_CTRL, 0);
+
+	return err;
+}
+
+static struct phy_driver ksz8041_phy_driver = {
+	.phy_id		= 0x00221512,
+	.name		= "Micrel/Kendin KSZ8041",
+	.phy_id_mask	= 0x001fffff,
+	.features	= PHY_BASIC_FEATURES,
+	.flags		= PHY_HAS_INTERRUPT,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
+	.ack_interrupt	= ksz8041_ack_interrupt,
+	.config_intr	= ksz8041_config_intr,
+	.driver	= {
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init micrel_phy_init(void)
+{
+	int ret;
+
+	ret = phy_driver_register(&ksz8041_phy_driver);
+
+	return ret;
+}
+
+static void __exit micrel_phy_exit(void)
+{
+	phy_driver_unregister(&ksz8041_phy_driver);
+}
+
+module_init(micrel_phy_init);
+module_exit(micrel_phy_exit);
+
+MODULE_DESCRIPTION("Micrel/Kendin PHY driver");
+MODULE_AUTHOR("Gabor Juhos <[email protected]>");
+MODULE_AUTHOR("Imre Kaloz <[email protected]>");
+MODULE_LICENSE("GPL v2");

target/linux/ar71xx/files/drivers/spi/ar71xx_spi.c

@@ -0,0 +1,240 @@
+/*
+ * Atheros AR71xx SPI Controller driver
+ *
+ * Copyright (C) 2008 Gabor Juhos <[email protected]>
+ * Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
+#include <linux/bitops.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+#include <asm/mach-ar71xx/platform.h>
+
+#define DRV_DESC	"Atheros AR71xx SPI Controller driver"
+#define DRV_VERSION	"0.2.2"
+#define DRV_NAME	"ar71xx-spi"
+
+#undef PER_BIT_READ
+
+struct ar71xx_spi {
+	struct	spi_bitbang 	bitbang;
+	u32			ioc_base;
+	u32			reg_ctrl;
+
+	void __iomem 		*base;
+
+	struct platform_device	*pdev;
+	u32			(*get_ioc_base)(u8 chip_select, int cs_high,
+						int is_on);
+};
+
+static inline u32 ar71xx_spi_rr(struct ar71xx_spi *sp, unsigned reg)
+{
+	return __raw_readl(sp->base + reg);
+}
+
+static inline void ar71xx_spi_wr(struct ar71xx_spi *sp, unsigned reg, u32 val)
+{
+	__raw_writel(val, sp->base + reg);
+}
+
+static inline struct ar71xx_spi *spidev_to_sp(struct spi_device *spi)
+{
+	return spi_master_get_devdata(spi->master);
+}
+
+static u32 ar71xx_spi_get_ioc_base(u8 chip_select, int cs_high, int is_on)
+{
+	u32 ret;
+
+	if (is_on == AR71XX_SPI_CS_INACTIVE)
+		ret = SPI_IOC_CS_ALL;
+	else
+		ret = SPI_IOC_CS_ALL & ~SPI_IOC_CS(chip_select);
+
+	return ret;
+}
+
+static void ar71xx_spi_chipselect(struct spi_device *spi, int value)
+{
+	struct ar71xx_spi *sp = spidev_to_sp(spi);
+	void __iomem *base = sp->base;
+	u32 ioc_base;
+
+	switch (value) {
+	case BITBANG_CS_INACTIVE:
+		ioc_base = sp->get_ioc_base(spi->chip_select,
+					(spi->mode & SPI_CS_HIGH) != 0,
+					AR71XX_SPI_CS_INACTIVE);
+
+		__raw_writel(ioc_base, base + SPI_REG_IOC);
+		__raw_writel(sp->reg_ctrl, base + SPI_REG_CTRL);
+		__raw_writel(0, base + SPI_REG_FS);
+		break;
+
+	case BITBANG_CS_ACTIVE:
+		ioc_base = sp->get_ioc_base(spi->chip_select,
+					(spi->mode & SPI_CS_HIGH) != 0,
+					AR71XX_SPI_CS_ACTIVE);
+
+		__raw_writel(SPI_FS_GPIO, base + SPI_REG_FS);
+		/* TODO: setup speed */
+		__raw_writel(0x43, base + SPI_REG_CTRL);
+		__raw_writel(ioc_base, base + SPI_REG_IOC);
+		sp->ioc_base = ioc_base;
+		break;
+	}
+}
+
+static u32 ar71xx_spi_txrx_mode0(struct spi_device *spi, unsigned nsecs,
+					u32 word, u8 bits)
+{
+	struct ar71xx_spi *sp = spidev_to_sp(spi);
+	void __iomem *base = sp->base;
+	u32 ioc = sp->ioc_base;
+	u32 ret;
+
+	/* clock starts at inactive polarity */
+	for (word <<= (32 - bits); likely(bits); bits--) {
+		u32 out;
+
+		if (word & (1 << 31))
+			out = ioc | SPI_IOC_DO;
+		else
+			out = ioc & ~SPI_IOC_DO;
+
+		/* setup MSB (to slave) on trailing edge */
+		__raw_writel(out, base + SPI_REG_IOC);
+
+		__raw_writel(out | SPI_IOC_CLK, base + SPI_REG_IOC);
+
+		word <<= 1;
+
+#ifdef PER_BIT_READ
+		/* sample MSB (from slave) on leading edge */
+		ret = __raw_readl(base + SPI_REG_RDS);
+		__raw_writel(out, base + SPI_REG_IOC);
+#endif
+
+	}
+
+#ifndef PER_BIT_READ
+	ret = __raw_readl(base + SPI_REG_RDS);
+#endif
+	return ret;
+}
+
+static int ar71xx_spi_probe(struct platform_device *pdev)
+{
+	struct spi_master *master;
+	struct ar71xx_spi *sp;
+	struct ar71xx_spi_platform_data *pdata;
+	struct resource	*r;
+	int ret;
+
+	master = spi_alloc_master(&pdev->dev, sizeof(*sp));
+	if (master == NULL) {
+		dev_err(&pdev->dev, "failed to allocate spi master\n");
+		return -ENOMEM;
+	}
+
+	sp = spi_master_get_devdata(master);
+	platform_set_drvdata(pdev, sp);
+
+	pdata = pdev->dev.platform_data;
+
+	sp->bitbang.master = spi_master_get(master);
+	sp->bitbang.chipselect = ar71xx_spi_chipselect;
+	sp->bitbang.txrx_word[SPI_MODE_0] = ar71xx_spi_txrx_mode0;
+
+	sp->get_ioc_base = ar71xx_spi_get_ioc_base;
+	if (pdata) {
+		sp->bitbang.master->bus_num = pdata->bus_num;
+		sp->bitbang.master->num_chipselect = pdata->num_chipselect;
+		if (pdata->get_ioc_base)
+			sp->get_ioc_base = pdata->get_ioc_base;
+	} else {
+		sp->bitbang.master->bus_num = 0;
+		sp->bitbang.master->num_chipselect = 3;
+	}
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (r == NULL) {
+		ret = -ENOENT;
+		goto err1;
+	}
+
+	sp->base = ioremap_nocache(r->start, r->end - r->start + 1);
+	if (!sp->base) {
+		ret = -ENXIO;
+		goto err1;
+	}
+
+	sp->reg_ctrl = ar71xx_spi_rr(sp, SPI_REG_IOC);
+
+	ret = spi_bitbang_start(&sp->bitbang);
+	if (!ret)
+		return 0;
+
+	iounmap(sp->base);
+err1:
+	platform_set_drvdata(pdev, NULL);
+	spi_master_put(sp->bitbang.master);
+
+	return ret;
+}
+
+static int ar71xx_spi_remove(struct platform_device *pdev)
+{
+	struct ar71xx_spi *sp = platform_get_drvdata(pdev);
+
+	spi_bitbang_stop(&sp->bitbang);
+	iounmap(sp->base);
+	platform_set_drvdata(pdev, NULL);
+	spi_master_put(sp->bitbang.master);
+
+	return 0;
+}
+
+static struct platform_driver ar71xx_spi_drv = {
+	.probe		= ar71xx_spi_probe,
+	.remove		= ar71xx_spi_remove,
+	.driver		= {
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init ar71xx_spi_init(void)
+{
+	printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n");
+	return platform_driver_register(&ar71xx_spi_drv);
+}
+module_init(ar71xx_spi_init);
+
+static void __exit ar71xx_spi_exit(void)
+{
+	platform_driver_unregister(&ar71xx_spi_drv);
+}
+module_exit(ar71xx_spi_exit);
+
+MODULE_ALIAS("platform:" DRV_NAME);
+MODULE_DESCRIPTION(DRV_DESC);
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR("Gabor Juhos <[email protected]>");
+MODULE_AUTHOR("Imre Kaloz <[email protected]>");
+MODULE_LICENSE("GPL v2");

target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c

@@ -0,0 +1,193 @@
+/*
+ * EHCI HCD (Host Controller Driver) for USB.
+ *
+ * Copyright (C) 2007 Atheros Communications, Inc.
+ * Copyright (C) 2008 Gabor Juhos <[email protected]>
+ * Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ * Bus Glue for Atheros AR71xx built-in EHCI controller
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+
+extern int usb_disabled(void);
+
+static void ar71xx_start_ehci(struct platform_device *pdev)
+{
+}
+
+static void ar71xx_stop_ehci(struct platform_device *pdev)
+{
+	/*
+	 * TODO: implement
+	 */
+}
+
+int usb_ehci_ar71xx_probe(const struct hc_driver *driver,
+			  struct usb_hcd **hcd_out,
+			  struct platform_device *pdev)
+{
+	struct usb_hcd *hcd;
+	struct ehci_hcd *ehci;
+	struct resource *res;
+	int irq;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_dbg(&pdev->dev, "no IRQ specified for %s\n",
+			pdev->dev.bus_id);
+		return -ENODEV;
+	}
+	irq = res->start;
+
+	hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
+	if (!hcd)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_dbg(&pdev->dev, "no base address specified for %s\n",
+			pdev->dev.bus_id);
+		ret = -ENODEV;
+		goto err_put_hcd;
+	}
+	hcd->rsrc_start	= res->start;
+	hcd->rsrc_len	= res->end - res->start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		dev_dbg(&pdev->dev, "controller already in use\n");
+		ret = -EBUSY;
+		goto err_put_hcd;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		dev_dbg(&pdev->dev, "error mapping memory\n");
+		ret = -EFAULT;
+		goto err_release_region;
+	}
+
+	ar71xx_start_ehci(pdev);
+
+#if 0
+	ehci		= hcd_to_ehci(hcd);
+	ehci->caps	= hcd->regs;
+	ehci->regs	= hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase));
+	ehci->hcs_params = readl(&ehci->caps->hcs_params);
+#endif
+
+	ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
+	if (ret)
+		goto err_stop_ehc;
+
+	return 0;
+
+err_stop_ehc:
+	ar71xx_stop_ehci(pdev);
+	iounmap(hcd->regs);
+
+err_release_region:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err_put_hcd:
+	usb_put_hcd(hcd);
+	return ret;
+}
+
+/* may be called without controller electrically present */
+/* may be called with controller, bus, and devices active */
+
+/**
+ * usb_ehci_ar71xx_remove - shutdown processing for AR71xx-based HCDs
+ * @dev: USB Host Controller being removed
+ * Context: !in_interrupt()
+ *
+ * Reverses the effect of usb_hcd_ar71xx_probe(), first invoking
+ * the HCD's stop() method.  It is always called from a thread
+ * context, normally "rmmod", "apmd", or something similar.
+ *
+ */
+static void usb_ehci_ar71xx_remove(struct usb_hcd *hcd,
+				   struct platform_device *pdev)
+{
+	usb_remove_hcd(hcd);
+	ar71xx_stop_ehci(pdev);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+}
+
+static const struct hc_driver ehci_ar71xx_hc_driver = {
+	.description	= hcd_name,
+	.product_desc	= "Atheros AR71xx built-in EHCI controller",
+	.hcd_priv_size	= sizeof(struct ehci_hcd),
+	/*
+	 * generic hardware linkage
+	 */
+	.irq		= ehci_irq,
+	.flags		= HCD_MEMORY | HCD_USB2,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.reset		= ehci_init,
+	.start		= ehci_run,
+	.stop		= ehci_stop,
+	.shutdown	= ehci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue		= ehci_urb_enqueue,
+	.urb_dequeue		= ehci_urb_dequeue,
+	.endpoint_disable	= ehci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number = ehci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data	= ehci_hub_status_data,
+	.hub_control		= ehci_hub_control,
+#ifdef CONFIG_PM
+	.hub_suspend		= ehci_hub_suspend,
+	.hub_resume		= ehci_hub_resume,
+#endif
+};
+
+static int ehci_hcd_ar71xx_drv_probe(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = NULL;
+	int ret;
+
+	ret = -ENODEV;
+	if (!usb_disabled())
+		ret = usb_ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
+
+	return ret;
+}
+
+static int ehci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_ehci_ar71xx_remove(hcd, pdev);
+	return 0;
+}
+
+static struct platform_driver ehci_hcd_ar71xx_driver = {
+	.probe		= ehci_hcd_ar71xx_drv_probe,
+	.remove		= ehci_hcd_ar71xx_drv_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+	.driver = {
+		.name	= "ar71xx-ehci",
+		.bus	= &platform_bus_type
+	}
+};
+
+MODULE_ALIAS("ar71xx-ehci");

target/linux/ar71xx/files/drivers/usb/host/ohci-ar71xx.c

@@ -0,0 +1,200 @@
+/*
+ * OHCI HCD (Host Controller Driver) for USB.
+ *
+ * Copyright (C) 2007 Atheros Communications, Inc.
+ * Copyright (C) 2008 Gabor Juhos <[email protected]>
+ * Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ * Bus Glue for Atheros AR71xx built-in OHCI controller
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+
+extern int usb_disabled(void);
+
+static void ar71xx_start_ohci(struct platform_device *pdev)
+{
+}
+
+static void ar71xx_stop_ohci(struct platform_device *pdev)
+{
+	/*
+	 * TODO: implement
+	 */
+}
+
+int usb_hcd_ar71xx_probe(const struct hc_driver *driver,
+			 struct platform_device *pdev)
+{
+	struct usb_hcd *hcd;
+	struct resource *res;
+	int irq;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_dbg(&pdev->dev, "no IRQ specified for %s\n",
+			pdev->dev.bus_id);
+		return -ENODEV;
+	}
+	irq = res->start;
+
+	hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
+	if (!hcd)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_dbg(&pdev->dev, "no base address specified for %s\n",
+			pdev->dev.bus_id);
+		ret = -ENODEV;
+		goto err_put_hcd;
+	}
+	hcd->rsrc_start	= res->start;
+	hcd->rsrc_len	= res->end - res->start + 1;
+
+	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
+		dev_dbg(&pdev->dev, "controller already in use\n");
+		ret = -EBUSY;
+		goto err_put_hcd;
+	}
+
+	hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		dev_dbg(&pdev->dev, "error mapping memory\n");
+		ret = -EFAULT;
+		goto err_release_region;
+	}
+
+	ar71xx_start_ohci(pdev);
+	ohci_hcd_init(hcd_to_ohci(hcd));
+
+	ret = usb_add_hcd(hcd, irq, IRQF_DISABLED);
+	if (ret)
+		goto err_stop_hcd;
+
+	return 0;
+
+err_stop_hcd:
+	ar71xx_stop_ohci(pdev);
+	iounmap(hcd->regs);
+err_release_region:
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+err_put_hcd:
+	usb_put_hcd(hcd);
+	return ret;
+}
+
+
+/* may be called without controller electrically present */
+/* may be called with controller, bus, and devices active */
+
+/**
+ * usb_hcd_ar71xx_remove - shutdown processing for AR71xx HCDs
+ * @dev: USB Host Controller being removed
+ * Context: !in_interrupt()
+ *
+ * Reverses the effect of usb_hcd_ar71xx_probe(), first invoking
+ * the HCD's stop() method.  It is always called from a thread
+ * context, normally "rmmod", "apmd", or something similar.
+ *
+ */
+void usb_hcd_ar71xx_remove(struct usb_hcd *hcd, struct platform_device *pdev)
+{
+	usb_remove_hcd(hcd);
+	ar71xx_stop_ohci(pdev);
+	iounmap(hcd->regs);
+	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	usb_put_hcd(hcd);
+}
+
+static int __devinit ohci_ar71xx_start(struct usb_hcd *hcd)
+{
+	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
+	int ret;
+
+	ret = ohci_init(ohci);
+	if (ret < 0)
+		return ret;
+
+	ret = ohci_run(ohci);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+
+err:
+	ohci_stop(hcd);
+	return ret;
+}
+
+static const struct hc_driver ohci_ar71xx_hc_driver = {
+	.description	= hcd_name,
+	.product_desc	= "Atheros AR71xx built-in OHCI controller",
+	.hcd_priv_size	= sizeof(struct ohci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq		= ohci_irq,
+	.flags		= HCD_USB11 | HCD_MEMORY,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.start		= ohci_ar71xx_start,
+	.stop		= ohci_stop,
+	.shutdown	= ohci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue		= ohci_urb_enqueue,
+	.urb_dequeue		= ohci_urb_dequeue,
+	.endpoint_disable	= ohci_endpoint_disable,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number	= ohci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data	= ohci_hub_status_data,
+	.hub_control		= ohci_hub_control,
+	.start_port_reset	= ohci_start_port_reset,
+};
+
+static int ohci_hcd_ar71xx_drv_probe(struct platform_device *pdev)
+{
+	int ret;
+
+	ret = -ENODEV;
+	if (!usb_disabled())
+		ret = usb_hcd_ar71xx_probe(&ohci_ar71xx_hc_driver, pdev);
+
+	return ret;
+}
+
+static int ohci_hcd_ar71xx_drv_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+
+	usb_hcd_ar71xx_remove(hcd, pdev);
+	return 0;
+}
+
+static struct platform_driver ohci_hcd_ar71xx_driver = {
+	.probe		= ohci_hcd_ar71xx_drv_probe,
+	.remove		= ohci_hcd_ar71xx_drv_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+	.driver		= {
+		.name	= "ar71xx-ohci",
+		.owner	= THIS_MODULE,
+	},
+};
+
+MODULE_ALIAS("ar71xx-ohci");

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/ar71xx.h

@@ -0,0 +1,375 @@
+/*
+ *  Atheros AR71xx SoC specific definitions
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  Parts of this file are based on Atheros' 2.6.15 BSP
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef __ASM_MACH_AR71XX_H
+#define __ASM_MACH_AR71XX_H
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/bitops.h>
+
+#ifndef __ASSEMBLER__
+
+#define AR71XX_PCI_MEM_BASE	0x10000000
+#define AR71XX_PCI_MEM_SIZE	0x08000000
+#define AR71XX_APB_BASE		0x18000000
+#define AR71XX_GE0_BASE		0x19000000
+#define AR71XX_GE0_SIZE		0x01000000
+#define AR71XX_GE1_BASE		0x1a000000
+#define AR71XX_GE1_SIZE		0x01000000
+#define AR71XX_EHCI_BASE	0x1b000000
+#define AR71XX_EHCI_SIZE	0x01000000
+#define AR71XX_OHCI_BASE	0x1c000000
+#define AR71XX_OHCI_SIZE	0x01000000
+#define AR71XX_SPI_BASE		0x1f000000
+#define AR71XX_SPI_SIZE		0x01000000
+
+#define AR71XX_DDR_CTRL_BASE	(AR71XX_APB_BASE + 0x00000000)
+#define AR71XX_DDR_CTRL_SIZE	0x10000
+#define AR71XX_CPU_BASE		(AR71XX_APB_BASE + 0x00010000)
+#define AR71XX_UART_BASE	(AR71XX_APB_BASE + 0x00020000)
+#define AR71XX_UART_SIZE	0x10000
+#define AR71XX_USB_CTRL_BASE	(AR71XX_APB_BASE + 0x00030000)
+#define AR71XX_USB_CTRL_SIZE	0x10000
+#define AR71XX_GPIO_BASE	(AR71XX_APB_BASE + 0x00040000)
+#define AR71XX_GPIO_SIZE	0x10000
+#define AR71XX_PLL_BASE		(AR71XX_APB_BASE + 0x00050000)
+#define AR71XX_PLL_SIZE		0x10000
+#define AR71XX_RESET_BASE	(AR71XX_APB_BASE + 0x00060000)
+#define AR71XX_RESET_SIZE	0x10000
+#define AR71XX_MII_BASE		(AR71XX_APB_BASE + 0x00070000)
+#define AR71XX_MII_SIZE		0x10000
+#define AR71XX_SLIC_BASE	(AR71XX_APB_BASE + 0x00090000)
+#define AR71XX_SLIC_SIZE	0x10000
+#define AR71XX_DMA_BASE		(AR71XX_APB_BASE + 0x000A0000)
+#define AR71XX_DMA_SIZE		0x10000
+#define AR71XX_STEREO_BASE	(AR71XX_APB_BASE + 0x000B0000)
+#define AR71XX_STEREO_SIZE	0x10000
+
+#define AR71XX_CPU_IRQ_BASE	0
+#define AR71XX_MISC_IRQ_BASE	8
+#define AR71XX_MISC_IRQ_COUNT	8
+#define AR71XX_GPIO_IRQ_BASE	16
+#define AR71XX_GPIO_IRQ_COUNT	16
+#define AR71XX_PCI_IRQ_BASE     32
+#define AR71XX_PCI_IRQ_COUNT	4
+
+#define AR71XX_CPU_IRQ_PCI	(AR71XX_CPU_IRQ_BASE + 2)
+#define AR71XX_CPU_IRQ_USB	(AR71XX_CPU_IRQ_BASE + 3)
+#define AR71XX_CPU_IRQ_GE0	(AR71XX_CPU_IRQ_BASE + 4)
+#define AR71XX_CPU_IRQ_GE1	(AR71XX_CPU_IRQ_BASE + 5)
+#define AR71XX_CPU_IRQ_MISC	(AR71XX_CPU_IRQ_BASE + 6)
+#define AR71XX_CPU_IRQ_TIMER	(AR71XX_CPU_IRQ_BASE + 7)
+
+#define AR71XX_MISC_IRQ_TIMER	(AR71XX_MISC_IRQ_BASE + 0)
+#define AR71XX_MISC_IRQ_ERROR	(AR71XX_MISC_IRQ_BASE + 1)
+#define AR71XX_MISC_IRQ_GPIO	(AR71XX_MISC_IRQ_BASE + 2)
+#define AR71XX_MISC_IRQ_UART	(AR71XX_MISC_IRQ_BASE + 3)
+#define AR71XX_MISC_IRQ_WDOG	(AR71XX_MISC_IRQ_BASE + 4)
+#define AR71XX_MISC_IRQ_PERFC	(AR71XX_MISC_IRQ_BASE + 5)
+#define AR71XX_MISC_IRQ_OHCI	(AR71XX_MISC_IRQ_BASE + 6)
+#define AR71XX_MISC_IRQ_DMA	(AR71XX_MISC_IRQ_BASE + 7)
+
+#define AR71XX_GPIO_IRQ(_x)	(AR71XX_GPIO_IRQ_BASE + (_x))
+
+#define AR71XX_PCI_IRQ_DEV0	(AR71XX_PCI_IRQ_BASE + 0)
+#define AR71XX_PCI_IRQ_DEV1	(AR71XX_PCI_IRQ_BASE + 1)
+#define AR71XX_PCI_IRQ_DEV2	(AR71XX_PCI_IRQ_BASE + 2)
+#define AR71XX_PCI_IRQ_CORE	(AR71XX_PCI_IRQ_BASE + 3)
+
+extern u32 ar71xx_ahb_freq;
+extern u32 ar71xx_cpu_freq;
+extern u32 ar71xx_ddr_freq;
+
+/*
+ * PLL block
+ */
+#define PLL_REG_CPU_PLL_CFG	0x00
+#define PLL_REG_SEC_PLL_CFG	0x04
+#define PLL_REG_CPU_CLK_CTRL	0x08
+#define PLL_REG_ETH_INT0_CLK	0x10
+#define PLL_REG_ETH_INT1_CLK	0x14
+#define PLL_REG_ETH_EXT_CLK	0x18
+#define PLL_REG_PCI_CLK		0x1c
+
+#define PLL_DIV_SHIFT		3
+#define PLL_DIV_MASK		0x1f
+#define CPU_DIV_SHIFT		16
+#define CPU_DIV_MASK		0x3
+#define DDR_DIV_SHIFT		18
+#define DDR_DIV_MASK		0x3
+#define AHB_DIV_SHIFT		20
+#define AHB_DIV_MASK		0x7
+
+extern void __iomem *ar71xx_pll_base;
+
+static inline void ar71xx_pll_wr(unsigned reg, u32 val)
+{
+	__raw_writel(val, ar71xx_pll_base + reg);
+}
+
+static inline u32 ar71xx_pll_rr(unsigned reg)
+{
+	return __raw_readl(ar71xx_pll_base + reg);
+}
+
+/*
+ * USB_CONFIG block
+ */
+#define USB_CTRL_REG_FLADJ	0x00
+#define USB_CTRL_REG_CONFIG	0x04
+
+extern void __iomem *ar71xx_usb_ctrl_base;
+
+static inline void ar71xx_usb_ctrl_wr(unsigned reg, u32 val)
+{
+	__raw_writel(val, ar71xx_usb_ctrl_base + reg);
+}
+
+static inline u32 ar71xx_usb_ctrl_rr(unsigned reg)
+{
+	return __raw_readl(ar71xx_usb_ctrl_base + reg);
+}
+
+extern void ar71xx_add_device_usb(void) __init;
+
+/*
+ * GPIO block
+ */
+#define GPIO_REG_OE		0x00
+#define GPIO_REG_IN		0x04
+#define GPIO_REG_OUT		0x08
+#define GPIO_REG_SET		0x0c
+#define GPIO_REG_CLEAR		0x10
+#define GPIO_REG_INT_MODE	0x14
+#define GPIO_REG_INT_TYPE	0x18
+#define GPIO_REG_INT_POLARITY	0x1c
+#define GPIO_REG_INT_PENDING	0x20
+#define GPIO_REG_INT_ENABLE	0x24
+#define GPIO_REG_FUNC		0x28
+
+#define GPIO_FUNC_STEREO_EN	BIT(17)
+#define GPIO_FUNC_SLIC_EN	BIT(16)
+#define GPIO_FUNC_SPI_CS1_EN	BIT(15)
+#define GPIO_FUNC_SPI_CS0_EN	BIT(14)
+#define GPIO_FUNC_SPI_EN	BIT(13)
+#define GPIO_FUNC_UART_EN	BIT(8)
+#define GPIO_FUNC_USB_OC_EN	BIT(4)
+#define GPIO_FUNC_USB_CLK_EN	BIT(0)
+
+#define AR71XX_GPIO_COUNT	16
+
+extern void __iomem *ar71xx_gpio_base;
+
+static inline void ar71xx_gpio_wr(unsigned reg, u32 value)
+{
+	__raw_writel(value, ar71xx_gpio_base + reg);
+}
+
+static inline u32 ar71xx_gpio_rr(unsigned reg)
+{
+	return __raw_readl(ar71xx_gpio_base + reg);
+}
+
+extern void ar71xx_gpio_init(void) __init;
+extern void ar71xx_gpio_function_enable(u32 mask);
+extern void ar71xx_gpio_function_disable(u32 mask);
+
+/*
+ * DDR_CTRL block
+ */
+#define DDR_REG_PCI_WIN0	0x7c
+#define DDR_REG_PCI_WIN1	0x80
+#define DDR_REG_PCI_WIN2	0x84
+#define DDR_REG_PCI_WIN3	0x88
+#define DDR_REG_PCI_WIN4	0x8c
+#define DDR_REG_PCI_WIN5	0x90
+#define DDR_REG_PCI_WIN6	0x94
+#define DDR_REG_PCI_WIN7	0x98
+#define DDR_REG_FLUSH_GE0	0x9c
+#define DDR_REG_FLUSH_GE1	0xa0
+#define DDR_REG_FLUSH_USB	0xa4
+#define DDR_REG_FLUSH_PCI	0xa8
+
+#define PCI_WIN0_OFFS	0x10000000
+#define PCI_WIN1_OFFS	0x11000000
+#define PCI_WIN2_OFFS	0x12000000
+#define PCI_WIN3_OFFS	0x13000000
+#define PCI_WIN4_OFFS	0x14000000
+#define PCI_WIN5_OFFS	0x15000000
+#define PCI_WIN6_OFFS	0x16000000
+#define PCI_WIN7_OFFS	0x07000000
+
+extern void __iomem *ar71xx_ddr_base;
+
+static inline void ar71xx_ddr_wr(unsigned reg, u32 val)
+{
+	__raw_writel(val, ar71xx_ddr_base + reg);
+}
+
+static inline u32 ar71xx_ddr_rr(unsigned reg)
+{
+	return __raw_readl(ar71xx_ddr_base + reg);
+}
+
+extern void ar71xx_ddr_flush(u32 reg);
+
+/*
+ * PCI block
+ */
+#define AR71XX_PCI_CFG_BASE	(AR71XX_PCI_MEM_BASE + PCI_WIN7_OFFS + 0x10000)
+#define AR71XX_PCI_CFG_SIZE	0x100
+
+#define PCI_REG_CRP_AD_CBE	0x00
+#define PCI_REG_CRP_WRDATA	0x04
+#define PCI_REG_CRP_RDDATA	0x08
+#define PCI_REG_CFG_AD		0x0c
+#define PCI_REG_CFG_CBE		0x10
+#define PCI_REG_CFG_WRDATA	0x14
+#define PCI_REG_CFG_RDDATA	0x18
+#define PCI_REG_PCI_ERR		0x1c
+#define PCI_REG_PCI_ERR_ADDR	0x20
+#define PCI_REG_AHB_ERR		0x24
+#define PCI_REG_AHB_ERR_ADDR	0x28
+
+#define PCI_CRP_CMD_WRITE	0x00010000
+#define PCI_CRP_CMD_READ	0x00000000
+#define PCI_CFG_CMD_READ	0x0000000a
+#define PCI_CFG_CMD_WRITE	0x0000000b
+
+#define PCI_IDSEL_ADL_START	17
+
+/*
+ * RESET block
+ */
+#define RESET_REG_TIMER			0x00
+#define RESET_REG_TIMER_RELOAD		0x04
+#define RESET_REG_WDOG_CTRL		0x08
+#define RESET_REG_WDOG			0x0c
+#define RESET_REG_MISC_INT_STATUS	0x10
+#define RESET_REG_MISC_INT_ENABLE	0x14
+#define RESET_REG_PCI_INT_STATUS	0x18
+#define RESET_REG_PCI_INT_ENABLE	0x1c
+#define RESET_REG_GLOBAL_INT_STATUS	0x20
+#define RESET_REG_RESET_MODULE		0x24
+#define RESET_REG_PERFC_CTRL		0x2c
+#define RESET_REG_PERFC0		0x30
+#define RESET_REG_PERFC1		0x34
+#define RESET_REG_REV_ID		0x90
+
+#define MISC_INT_DMA			BIT(7)
+#define MISC_INT_OHCI			BIT(6)
+#define MISC_INT_PERFC			BIT(5)
+#define MISC_INT_WDOG			BIT(4)
+#define MISC_INT_UART			BIT(3)
+#define MISC_INT_GPIO			BIT(2)
+#define MISC_INT_ERROR			BIT(1)
+#define MISC_INT_TIMER			BIT(0)
+
+#define PCI_INT_CORE			BIT(4)
+#define PCI_INT_DEV2			BIT(2)
+#define PCI_INT_DEV1			BIT(1)
+#define PCI_INT_DEV0			BIT(0)
+
+#define RESET_MODULE_EXTERNAL		BIT(28)
+#define RESET_MODULE_FULL_CHIP		BIT(24)
+#define RESET_MODULE_CPU_NMI		BIT(21)
+#define RESET_MODULE_CPU_COLD		BIT(20)
+#define RESET_MODULE_DMA		BIT(19)
+#define RESET_MODULE_SLIC		BIT(18)
+#define RESET_MODULE_STEREO		BIT(17)
+#define RESET_MODULE_DDR		BIT(16)
+#define RESET_MODULE_GE1_MAC		BIT(13)
+#define RESET_MODULE_GE1_PHY		BIT(12)
+#define RESET_MODULE_USBSUS_OVERRIDE	BIT(10)
+#define RESET_MODULE_GE0_MAC		BIT(9)
+#define RESET_MODULE_GE0_PHY		BIT(8)
+#define RESET_MODULE_USB_OHCI_DLL	BIT(6)
+#define RESET_MODULE_USB_HOST		BIT(5)
+#define RESET_MODULE_USB_PHY		BIT(4)
+#define RESET_MODULE_PCI_BUS		BIT(1)
+#define RESET_MODULE_PCI_CORE		BIT(0)
+
+#define REV_ID_MASK		0xff
+#define REV_ID_CHIP_MASK	0xf3
+#define REV_ID_CHIP_AR7130	0xa0
+#define REV_ID_CHIP_AR7141	0xa1
+#define REV_ID_CHIP_AR7161	0xa2
+
+#define REV_ID_REVISION_MASK	0x3
+#define REV_ID_REVISION_SHIFT	2
+
+extern void __iomem *ar71xx_reset_base;
+
+static inline void ar71xx_reset_wr(unsigned reg, u32 val)
+{
+	__raw_writel(val, ar71xx_reset_base + reg);
+}
+
+static inline u32 ar71xx_reset_rr(unsigned reg)
+{
+	return __raw_readl(ar71xx_reset_base + reg);
+}
+
+extern void ar71xx_device_stop(u32 mask);
+extern void ar71xx_device_start(u32 mask);
+
+/*
+ * SPI block
+ */
+#define SPI_REG_FS		0x00	/* Function Select */
+#define SPI_REG_CTRL		0x04	/* SPI Control */
+#define SPI_REG_IOC		0x08	/* SPI I/O Control */
+#define SPI_REG_RDS		0x0c	/* Read Data Shift */
+
+#define SPI_FS_GPIO		BIT(0)	/* Enable GPIO mode */
+
+#define SPI_CTRL_RD		BIT(6)	/* Remap Disable */
+#define SPI_CTRL_DIV_MASK	0x3f
+
+#define SPI_IOC_DO		BIT(0)	/* Data Out pin */
+#define SPI_IOC_CLK		BIT(8)	/* CLK pin */
+#define SPI_IOC_CS(n)		BIT(16 + (n))
+#define SPI_IOC_CS0		SPI_IOC_CS(0)
+#define SPI_IOC_CS1		SPI_IOC_CS(1)
+#define SPI_IOC_CS2		SPI_IOC_CS(2)
+#define SPI_IOC_CS_ALL		(SPI_IOC_CS0 | SPI_IOC_CS1 | SPI_IOC_CS2)
+
+/*
+ * MII_CTRL block
+ */
+#define MII_REG_MII0_CTRL	0x00
+#define MII_REG_MII1_CTRL	0x04
+
+#define MII0_CTRL_IF_GMII	0
+#define MII0_CTRL_IF_MII	1
+#define MII0_CTRL_IF_RGMII	2
+#define MII0_CTRL_IF_RMII	3
+
+#define MII1_CTRL_IF_RGMII	0
+#define MII1_CTRL_IF_RMII	1
+
+#include <asm/bootinfo.h>
+#include <linux/init.h>
+
+#define ar71xx_print_cmdline() do {					\
+		printk(KERN_DEBUG "%s:%d arcs_cmdline:'%s'\n",		\
+			__FUNCTION__, __LINE__, arcs_cmdline);		\
+		printk(KERN_DEBUG "%s:%d boot_command_line:'%s'\n",	\
+			__FUNCTION__, __LINE__,	boot_command_line);	\
+	} while (0)
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* __ASM_MACH_AR71XX_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/cpu-feature-overrides.h

@@ -0,0 +1,56 @@
+/*
+ *  Atheros AR71xx specific CPU feature overrides
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This file was derived from: include/asm-mips/cpu-features.h
+ *	Copyright (C) 2003, 2004 Ralf Baechle
+ *	Copyright (C) 2004 Maciej W. Rozycki
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+#ifndef __ASM_MACH_AR71XX_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_AR71XX_CPU_FEATURE_OVERRIDES_H
+
+#define cpu_has_tlb		1
+#define cpu_has_4kex		1
+#define cpu_has_3k_cache	0
+#define cpu_has_4k_cache	1
+#define cpu_has_tx39_cache	0
+#define cpu_has_sb1_cache	0
+#define cpu_has_fpu		0
+#define cpu_has_32fpr		0
+#define cpu_has_counter		1
+#define cpu_has_watch		1
+#define cpu_has_divec		1
+
+#define cpu_has_prefetch	1
+#define cpu_has_ejtag		1
+#define cpu_has_llsc		1
+
+#define cpu_has_mips16		1
+#define cpu_has_mdmx		0
+#define cpu_has_mips3d		0
+#define cpu_has_smartmips	0
+
+#define cpu_has_mips32r1	1
+#define cpu_has_mips32r2	1
+#define cpu_has_mips64r1	0
+#define cpu_has_mips64r2	0
+
+#define cpu_has_dsp		0
+#define cpu_has_mipsmt		0
+
+#define cpu_has_64bits		0
+#define cpu_has_64bit_zero_reg	0
+#define cpu_has_64bit_gp_regs	0
+#define cpu_has_64bit_addresses	0
+
+#define cpu_dcache_line_size()	32
+#define cpu_icache_line_size()	32
+
+#endif /* __ASM_MACH_AR71XX_CPU_FEATURE_OVERRIDES_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/gpio.h

@@ -0,0 +1,52 @@
+/*
+ *  Atheros AR71xx GPIO API definitions
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ */
+
+#ifndef __ASM_MACH_AR71XX_GPIO_H
+#define __ASM_MACH_AR71XX_GPIO_H
+
+#define ARCH_NR_GPIOS	64
+#include <asm-generic/gpio.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+extern void __ar71xx_gpio_set_value(unsigned gpio, int value);
+extern int __ar71xx_gpio_get_value(unsigned gpio);
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return AR71XX_GPIO_IRQ(gpio);
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return irq - AR71XX_GPIO_IRQ_BASE;
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	if (gpio < AR71XX_GPIO_COUNT)
+		return __ar71xx_gpio_get_value(gpio);
+
+	return __gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	if (gpio < AR71XX_GPIO_COUNT)
+		__ar71xx_gpio_set_value(gpio, value);
+	else
+		__gpio_set_value(gpio, value);
+}
+
+#define gpio_cansleep	__gpio_cansleep
+
+#endif /* __ASM_MACH_AR71XX_GPIO_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/irq.h

@@ -0,0 +1,17 @@
+/*
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+#ifndef __ASM_MACH_AR71XX_IRQ_H
+#define __ASM_MACH_AR71XX_IRQ_H
+
+#define MIPS_CPU_IRQ_BASE	0
+#define NR_IRQS			36
+
+#include_next <irq.h>
+
+#endif /* __ASM_MACH_AR71XX_IRQ_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/mangle-port.h

@@ -0,0 +1,45 @@
+/*
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This file was derived from: inlude/asm-mips/mach-generic/mangle-port.h
+ * 	Copyright (C) 2003, 2004 Ralf Baechle
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef __ASM_MACH_AR71XX_MANGLE_PORT_H
+#define __ASM_MACH_AR71XX_MANGLE_PORT_H
+
+#define __swizzle_addr_b(port)	((port) ^ 3)
+#define __swizzle_addr_w(port)	((port) ^ 2)
+#define __swizzle_addr_l(port)	(port)
+#define __swizzle_addr_q(port)	(port)
+
+#if defined(CONFIG_SWAP_IO_SPACE)
+
+# define ioswabb(a, x)           (x)
+# define __mem_ioswabb(a, x)     (x)
+# define ioswabw(a, x)           le16_to_cpu(x)
+# define __mem_ioswabw(a, x)     (x)
+# define ioswabl(a, x)           le32_to_cpu(x)
+# define __mem_ioswabl(a, x)     (x)
+# define ioswabq(a, x)           le64_to_cpu(x)
+# define __mem_ioswabq(a, x)     (x)
+
+#else
+
+# define ioswabb(a, x)           (x)
+# define __mem_ioswabb(a, x)     (x)
+# define ioswabw(a, x)           (x)
+# define __mem_ioswabw(a, x)     cpu_to_le16(x)
+# define ioswabl(a, x)           (x)
+# define __mem_ioswabl(a, x)     cpu_to_le32(x)
+# define ioswabq(a, x)           (x)
+# define __mem_ioswabq(a, x)     cpu_to_le64(x)
+
+#endif
+
+#endif /* __ASM_MACH_AR71XX_MANGLE_PORT_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/pci.h

@@ -0,0 +1,28 @@
+/*
+ *  Atheros AR71xx SoC specific PCI definitions
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef __ASM_MACH_AR71XX_PCI_H
+#define __ASM_MACH_AR71XX_PCI_H
+
+struct ar71xx_pci_irq {
+	int	irq;
+	u8	slot;
+	u8	pin;
+};
+
+extern int (*ar71xx_pci_be_handler)(int is_fixup);
+extern int (*ar71xx_pci_bios_init)(unsigned nr_irqs,
+				    struct ar71xx_pci_irq *map) __initdata;
+
+extern int ar71xx_pci_init(unsigned nr_irqs,
+			   struct ar71xx_pci_irq *map) __init;
+
+#endif /* __ASM_MACH_AR71XX_PCI_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/platform.h

@@ -0,0 +1,42 @@
+/*
+ *  Atheros AR71xx SoC specific platform definitions
+ *
+ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
+ *  Copyright (C) 2008 Imre Kaloz <[email protected]>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#ifndef __ASM_MACH_AR71XX_PLATFORM_H
+#define __ASM_MACH_AR71XX_PLATFORM_H
+
+#include <linux/skbuff.h>
+#include <linux/phy.h>
+#include <linux/spi/spi.h>
+
+struct ag71xx_platform_data {
+	u32		reset_bit;
+	u32		flush_reg;
+	u32		phy_mask;
+	phy_interface_t	phy_if_mode;
+	u32		mii_if;
+};
+
+struct ar71xx_spi_platform_data {
+	unsigned	bus_num;
+	unsigned	num_chipselect;
+	u32		(*get_ioc_base)(u8 chip_select, int cs_high, int is_on);
+};
+
+#define AR71XX_SPI_CS_INACTIVE	0
+#define AR71XX_SPI_CS_ACTIVE	1
+
+extern void ar71xx_add_device_spi(struct ar71xx_spi_platform_data *pdata,
+				struct spi_board_info const *info,
+				unsigned n) __init;
+extern void ar71xx_add_device_eth(unsigned int id, phy_interface_t phy_if_mode,
+				u32 phy_mask) __init;
+
+#endif /* __ASM_MACH_AR71XX_PLATFORM_H */

target/linux/ar71xx/files/include/asm-mips/mach-ar71xx/war.h

@@ -0,0 +1,25 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <[email protected]>
+ */
+#ifndef __ASM_MACH_AR71XX_WAR_H
+#define __ASM_MACH_AR71XX_WAR_H
+
+#define R4600_V1_INDEX_ICACHEOP_WAR	0
+#define R4600_V1_HIT_CACHEOP_WAR	0
+#define R4600_V2_HIT_CACHEOP_WAR	0
+#define R5432_CP0_INTERRUPT_WAR		0
+#define BCM1250_M3_WAR			0
+#define SIBYTE_1956_WAR			0
+#define MIPS4K_ICACHE_REFILL_WAR	0
+#define MIPS_CACHE_SYNC_WAR		0
+#define TX49XX_ICACHE_INDEX_INV_WAR	0
+#define RM9000_CDEX_SMP_WAR		0
+#define ICACHE_REFILLS_WORKAROUND_WAR	0
+#define R10000_LLSC_WAR			0
+#define MIPS34K_MISSED_ITLB_WAR		0
+
+#endif /* __ASM_MACH_AR71XX_WAR_H */

target/linux/ar71xx/image/Makefile

@@ -0,0 +1,28 @@
+# 
+# Copyright (C) 2008 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+define Image/BuildKernel
+	cp $(KDIR)/vmlinux.elf $(BIN_DIR)/openwrt-$(BOARD)-vmlinux.elf
+	gzip -9 -c $(KDIR)/vmlinux > $(KDIR)/vmlinux.bin.gz
+	$(STAGING_DIR_HOST)/bin/lzma e $(KDIR)/vmlinux $(KDIR)/vmlinux.bin.l7
+	dd if=$(KDIR)/vmlinux.bin.l7 of=$(BIN_DIR)/openwrt-$(BOARD)-vmlinux.lzma bs=65536 conv=sync
+	dd if=$(KDIR)/vmlinux.bin.gz of=$(BIN_DIR)/openwrt-$(BOARD)-vmlinux.gz bs=65536 conv=sync
+endef
+
+define Image/Build/squashfs
+    $(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
+endef
+
+define Image/Build
+	$(call Image/Build/$(1))
+	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/openwrt-$(BOARD)-root.$(1) bs=128k conv=sync
+endef
+
+
+$(eval $(call BuildImage))

target/linux/ar71xx/patches/001-ar71xx_core.patch

@@ -0,0 +1,61 @@
+--- a/arch/mips/Makefile
++++ b/arch/mips/Makefile
+@@ -593,6 +593,13 @@
+ cflags-$(CONFIG_TOSHIBA_RBTX4938) += -Iinclude/asm-mips/mach-tx49xx
+ load-$(CONFIG_TOSHIBA_RBTX4938) += 0xffffffff80100000
+ 
++#
++# Atheros AR71xx
++#
++core-$(CONFIG_ATHEROS_AR71XX)	+= arch/mips/ar71xx/
++cflags-$(CONFIG_ATHEROS_AR71XX)	+= -Iinclude/asm-mips/mach-ar71xx
++load-$(CONFIG_ATHEROS_AR71XX)	+= 0xffffffff80060000
++
+ # temporary until string.h is fixed
+ cflags-y += -ffreestanding
+ 
+--- a/include/asm-mips/bootinfo.h
++++ b/include/asm-mips/bootinfo.h
+@@ -79,6 +79,15 @@
+ #define  MACH_LASAT_200		1	/* Masquerade PRO/SP200 */
+ 
+ /*
++ * Valid machtype for Atheros AR71xx based boards
++ */
++#define MACH_AR71XX_GENERIC	0
++#define MACH_AR71XX_WP543	1	/* Compex WP543 */
++#define MACH_AR71XX_RB_411	2	/* MikroTik RouterBOARD 411 */
++#define MACH_AR71XX_RB_433	3	/* MikroTik RouterBOARD 433/433AH */
++#define MACH_AR71XX_RB_450	4	/* MikroTik RouterBOARD 450 */
++
++/*
+  * Valid machtype for group NEC EMMA2RH
+  */
+ #define  MACH_NEC_MARKEINS	0	/* NEC EMMA2RH Mark-eins	*/
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -21,6 +21,24 @@
+ config MACH_ALCHEMY
+ 	bool "Alchemy processor based machines"
+ 
++config ATHEROS_AR71XX
++	bool "Atheros AR71xx based boards"
++	select CEVT_R4K
++	select CSRC_R4K
++	select DMA_NONCOHERENT
++	select HW_HAS_PCI
++	select IRQ_CPU
++	select GENERIC_GPIO
++	select HAVE_GPIO_LIB
++	select SYS_HAS_CPU_MIPS32_R1
++	select SYS_HAS_CPU_MIPS32_R2
++	select SYS_SUPPORTS_32BIT_KERNEL
++	select SYS_SUPPORTS_BIG_ENDIAN
++	select SYS_HAS_EARLY_PRINTK
++	select MIPS_MACHINE
++	help
++	  Support for Atheros AR71xx based boards.
++
+ config BASLER_EXCITE
+ 	bool "Basler eXcite smart camera"
+ 	select CEVT_R4K

target/linux/ar71xx/patches/002-ar71xx_pci.patch

@@ -0,0 +1,10 @@
+--- a/arch/mips/pci/Makefile
++++ b/arch/mips/pci/Makefile
+@@ -15,6 +15,7 @@
+ obj-$(CONFIG_PCI_VR41XX)	+= ops-vr41xx.o pci-vr41xx.o
+ obj-$(CONFIG_NEC_CMBVR4133)	+= fixup-vr4133.o
+ obj-$(CONFIG_MARKEINS)		+= ops-emma2rh.o pci-emma2rh.o fixup-emma2rh.o
++obj-$(CONFIG_ATHEROS_AR71XX)	+= pci-ar71xx.o
+ 
+ #
+ # These are still pretty much in the old state, watch, go blind.

target/linux/ar71xx/patches/003-ar71xx_usb_host.patch

@@ -0,0 +1,60 @@
+--- a/drivers/usb/host/Kconfig
++++ b/drivers/usb/host/Kconfig
+@@ -260,3 +260,15 @@
+ 	  To compile this driver as a module, choose M here: the
+ 	  module will be called r8a66597-hcd.
+ 
++config USB_OHCI_AR71XX
++	bool "USB OHCI support for Atheros AR71xx"
++	depends on ATHEROS_AR71XX && USB_OHCI_HCD
++	help
++	  Support for Atheros AR71xx built-in OHCI controller
++
++config USB_EHCI_AR71XX
++	bool "USB EHCI support for AR71xx"
++	depends on ATHEROS_AR71XX && USB_EHCI_HCD
++	help
++	  Support for Atheros AR71xx built-in EHCI controller
++
+--- a/drivers/usb/host/ehci-hcd.c
++++ b/drivers/usb/host/ehci-hcd.c
+@@ -1043,6 +1043,11 @@
+ #define	PLATFORM_DRIVER		ixp4xx_ehci_driver
+ #endif
+ 
++#ifdef CONFIG_USB_EHCI_AR71XX
++#include "ehci-ar71xx.c"
++#define PLATFORM_DRIVER		ehci_hcd_ar71xx_driver
++#endif
++
+ #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
+     !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER)
+ #error "missing bus glue for ehci-hcd"
+--- a/drivers/usb/host/ohci.h
++++ b/drivers/usb/host/ohci.h
+@@ -538,6 +538,11 @@
+ #define writel_be(val, addr)	out_be32((__force unsigned *)addr, val)
+ #endif
+ 
++#if defined(CONFIG_ATHEROS_AR71XX)
++#define readl_be(addr)		__raw_readl(addr)
++#define writel_be(val, addr)	__raw_writel(addr, val)
++#endif
++
+ static inline unsigned int _ohci_readl (const struct ohci_hcd *ohci,
+ 					__hc32 __iomem * regs)
+ {
+--- a/drivers/usb/host/ohci-hcd.c
++++ b/drivers/usb/host/ohci-hcd.c
+@@ -1057,6 +1057,11 @@
+ #define PLATFORM_DRIVER		ohci_hcd_sm501_driver
+ #endif
+ 
++#ifdef CONFIG_USB_OHCI_AR71XX
++#include "ohci-ar71xx.c"
++#define PLATFORM_DRIVER		ohci_hcd_ar71xx_driver
++#endif
++
+ #if	!defined(PCI_DRIVER) &&		\
+ 	!defined(PLATFORM_DRIVER) &&	\
+ 	!defined(OF_PLATFORM_DRIVER) &&	\

target/linux/ar71xx/patches/004-ar71xx_spi_controller.patch

@@ -0,0 +1,26 @@
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -52,6 +52,13 @@
+ comment "SPI Master Controller Drivers"
+ 	depends on SPI_MASTER
+ 
++config SPI_AR71XX
++	tristate "Atheros AR71xx SPI Controller"
++	depends on SPI_MASTER && ATHEROS_AR71XX
++	select SPI_BITBANG
++	help
++	  This is the SPI contoller driver for Atheros AR71xx.
++
+ config SPI_ATMEL
+ 	tristate "Atmel SPI Controller"
+ 	depends on (ARCH_AT91 || AVR32) && SPI_MASTER
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -11,6 +11,7 @@
+ obj-$(CONFIG_SPI_MASTER)		+= spi.o
+ 
+ # SPI master controller drivers (bus)
++obj-$(CONFIG_SPI_AR71XX)		+= ar71xx_spi.o
+ obj-$(CONFIG_SPI_ATMEL)			+= atmel_spi.o
+ obj-$(CONFIG_SPI_BFIN)			+= spi_bfin5xx.o
+ obj-$(CONFIG_SPI_BITBANG)		+= spi_bitbang.o

target/linux/ar71xx/patches/005-ar71xx_mac_driver.patch

@@ -0,0 +1,21 @@
+--- a/drivers/net/Kconfig
++++ b/drivers/net/Kconfig
+@@ -2067,6 +2067,8 @@
+ 
+ 	  The safe and default value for this is N.
+ 
++source drivers/net/ag71xx/Kconfig
++
+ config DL2K
+ 	tristate "DL2000/TC902x-based Gigabit Ethernet support"
+ 	depends on PCI
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -2,6 +2,7 @@
+ # Makefile for the Linux network (ethercard) device drivers.
+ #
+ 
++obj-$(CONFIG_AG71XX) += ag71xx/
+ obj-$(CONFIG_E1000) += e1000/
+ obj-$(CONFIG_E1000E) += e1000e/
+ obj-$(CONFIG_IBM_EMAC) += ibm_emac/

target/linux/ar71xx/patches/100-mtd_pm25lv_flash_support.patch

@@ -0,0 +1,13 @@
+--- a/drivers/mtd/devices/m25p80.c
++++ b/drivers/mtd/devices/m25p80.c
+@@ -441,6 +441,10 @@
+ 	{ "at26df161a", 0x1f4601, 64 * 1024, 32, SECT_4K, },
+ 	{ "at26df321",  0x1f4701, 64 * 1024, 64, SECT_4K, },
+ 
++	/* PMC -- pm25x "blocks" are 32K, sectors are 4K */
++	{ "pm25lv512",         0, 32 * 1024, 2, SECT_4K },
++	{ "pm25lv010",         0, 32 * 1024, 4, SECT_4K },
++
+ 	/* Spansion -- single (large) sector size only, at least
+ 	 * for the chips listed here (without boot sectors).
+ 	 */

target/linux/ar71xx/patches/101-ksz8041_phy_driver.patch

@@ -0,0 +1,23 @@
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -76,6 +76,11 @@
+ 	---help---
+ 	  Currently supports the Marvell 88E6060 switch.
+ 
++config MICREL_PHY
++	tristate "Drivers for Micrel/Kendin PHYs"
++	---help---
++	  Currently has a driver for the KSZ8041
++
+ config FIXED_PHY
+ 	bool "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs"
+ 	depends on PHYLIB=y
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -15,5 +15,6 @@
+ obj-$(CONFIG_ADM6996_PHY)	+= adm6996.o
+ obj-$(CONFIG_MVSWITCH_PHY)	+= mvswitch.o
+ obj-$(CONFIG_REALTEK_PHY)	+= realtek.o
++obj-$(CONFIG_MICREL_PHY)	+= micrel.o
+ obj-$(CONFIG_FIXED_PHY)		+= fixed.o
+ obj-$(CONFIG_MDIO_BITBANG)	+= mdio-bitbang.o

target/linux/ar71xx/patches/140-redboot_partition_scan.patch

@@ -0,0 +1,54 @@
+--- a/drivers/mtd/redboot.c
++++ b/drivers/mtd/redboot.c
+@@ -59,31 +59,32 @@
+ 	static char nullstring[] = "unallocated";
+ #endif
+ 
++	buf = vmalloc(master->erasesize);
++	if (!buf)
++		return -ENOMEM;
++
++ restart:
+ 	if ( directory < 0 ) {
+ 		offset = master->size + directory * master->erasesize;
+-		while (master->block_isbad && 
++		while (master->block_isbad &&
+ 		       master->block_isbad(master, offset)) {
+ 			if (!offset) {
+ 			nogood:
+ 				printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
++				vfree(buf);
+ 				return -EIO;
+ 			}
+ 			offset -= master->erasesize;
+ 		}
+ 	} else {
+ 		offset = directory * master->erasesize;
+-		while (master->block_isbad && 
++		while (master->block_isbad &&
+ 		       master->block_isbad(master, offset)) {
+ 			offset += master->erasesize;
+ 			if (offset == master->size)
+ 				goto nogood;
+ 		}
+ 	}
+-	buf = vmalloc(master->erasesize);
+-
+-	if (!buf)
+-		return -ENOMEM;
+-
+ 	printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
+ 	       master->name, offset);
+ 
+@@ -155,6 +156,11 @@
+ 	}
+ 	if (i == numslots) {
+ 		/* Didn't find it */
++		if (offset + master->erasesize < master->size) {
++			/* not at the end of the flash yet, maybe next block :) */
++			directory++;
++			goto restart;
++		}
+ 		printk(KERN_NOTICE "No RedBoot partition table detected in %s\n",
+ 		       master->name);
+ 		ret = 0;

target/linux/ar71xx/patches/200-rb4xx_nand_driver.patch

@@ -0,0 +1,21 @@
+--- a/drivers/mtd/nand/Kconfig
++++ b/drivers/mtd/nand/Kconfig
+@@ -330,4 +330,8 @@
+ 	  Enabling this option will enable you to use this to control
+ 	  external NAND devices.
+ 
++config MTD_NAND_RB4XX
++	tristate "NAND flash driver for RouterBoard 4xx series"
++	depends on MTD_NAND && ATHEROS_AR71XX
++
+ endif # MTD_NAND
+--- a/drivers/mtd/nand/Makefile
++++ b/drivers/mtd/nand/Makefile
+@@ -28,6 +28,7 @@
+ obj-$(CONFIG_MTD_NAND_CM_X270)		+= cmx270_nand.o
+ obj-$(CONFIG_MTD_NAND_BASLER_EXCITE)	+= excite_nandflash.o
+ obj-$(CONFIG_MTD_NAND_PLATFORM)		+= plat_nand.o
++obj-$(CONFIG_MTD_NAND_RB4XX)		+= rb4xx_nand.o
+ obj-$(CONFIG_MTD_ALAUDA)		+= alauda.o
+ obj-$(CONFIG_MTD_NAND_PASEMI)		+= pasemi_nand.o
+ obj-$(CONFIG_MTD_NAND_ORION)		+= orion_nand.o

target/linux/ar71xx/patches/900-mips_multi_machine_support.patch

@@ -0,0 +1,143 @@
+--- /dev/null
++++ b/include/asm-mips/mips_machine.h
+@@ -0,0 +1,49 @@
++/*
++ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under the terms of the GNU General Public License version 2 as published
++ *  by the Free Software Foundation.
++ *
++ */
++
++#ifndef __ASM_MIPS_MACHINE_H
++#define __ASM_MIPS_MACHINE_H
++
++#include <linux/init.h>
++#include <linux/list.h>
++
++#include <asm/bootinfo.h>
++
++#define MIPS_MACHINE_NAME_LEN	64
++
++struct mips_machine {
++	unsigned long		mach_type;
++	void			(*mach_setup)(void);
++	unsigned char		mach_name[MIPS_MACHINE_NAME_LEN];
++	struct list_head	list;
++};
++
++void mips_machine_register(struct mips_machine *) __init;
++void mips_machine_setup(void) __init;
++
++extern unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN];
++
++#define MIPS_MACHINE(_type, _name, _setup) 			\
++static struct mips_machine machine_##_type __initdata =		\
++{								\
++	.mach_type	= _type,				\
++	.mach_name	= _name,				\
++	.mach_setup	= _setup,				\
++};								\
++								\
++static int __init register_machine_##_type(void)		\
++{								\
++	mips_machine_register(&machine_##_type);		\
++	return 0;						\
++}								\
++								\
++pure_initcall(register_machine_##_type)
++
++#endif /* __ASM_MIPS_MACHINE_H */
++
+--- /dev/null
++++ b/arch/mips/kernel/mips_machine.c
+@@ -0,0 +1,58 @@
++/*
++ *  Copyright (C) 2008 Gabor Juhos <[email protected]>
++ *
++ *  This program is free software; you can redistribute it and/or modify it
++ *  under the terms of the GNU General Public License version 2 as published
++ *  by the Free Software Foundation.
++ *
++ */
++
++#include <asm/mips_machine.h>
++#include <asm/bootinfo.h>
++
++static struct list_head mips_machines __initdata =
++		LIST_HEAD_INIT(mips_machines);
++
++unsigned char mips_machine_name[MIPS_MACHINE_NAME_LEN] = "Unknown";
++
++static struct mips_machine * __init mips_machine_find(unsigned long machtype)
++{
++	struct list_head *this;
++
++	list_for_each(this, &mips_machines) {
++		struct mips_machine *mach;
++
++		mach = list_entry(this, struct mips_machine, list);
++		if (mach->mach_type == machtype)
++			return mach;
++	}
++
++	return NULL;
++}
++
++void __init mips_machine_register(struct mips_machine *mach)
++{
++	list_add_tail(&mach->list, &mips_machines);
++}
++
++void __init mips_machine_setup(void)
++{
++	struct mips_machine *mach;
++
++	mach = mips_machine_find(mips_machtype);
++	if (!mach) {
++		printk(KERN_ALERT "MIPS: no machine registered for "
++			"machtype %lu\n", mips_machtype);
++		return;
++	}
++
++	if (mach->mach_name[0])
++		strncpy(mips_machine_name, mach->mach_name,
++			MIPS_MACHINE_NAME_LEN);
++
++	printk(KERN_INFO "MIPS: machine is %s\n", mips_machine_name);
++
++	if (mach->mach_setup)
++		mach->mach_setup();
++}
++
+--- a/arch/mips/kernel/Makefile
++++ b/arch/mips/kernel/Makefile
+@@ -79,6 +79,7 @@
+ 
+ obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o
+ obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
++obj-$(CONFIG_MIPS_MACHINE)	+= mips_machine.o
+ 
+ CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/null -xc /dev/null >/dev/null 2>&1; then echo "-DHAVE_AS_SET_DADDI"; fi)
+ 
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -700,6 +700,7 @@
+ 
+ endchoice
+ 
++source "arch/mips/ar71xx/Kconfig"
+ source "arch/mips/au1000/Kconfig"
+ source "arch/mips/basler/excite/Kconfig"
+ source "arch/mips/jazz/Kconfig"
+@@ -857,6 +858,9 @@
+ config MIPS_DISABLE_OBSOLETE_IDE
+ 	bool
+ 
++config MIPS_MACHINE
++	def_bool n
++
+ config NO_IOPORT
+ 	def_bool n
+ 

target/linux/ar71xx/patches/901-get_c0_compare_irq_function.patch

@@ -0,0 +1,29 @@
+--- a/arch/mips/kernel/traps.c
++++ b/arch/mips/kernel/traps.c
+@@ -42,6 +42,7 @@
+ #include <asm/mmu_context.h>
+ #include <asm/types.h>
+ #include <asm/stacktrace.h>
++#include <asm/time.h>
+ 
+ extern asmlinkage void handle_int(void);
+ extern asmlinkage void handle_tlbm(void);
+@@ -1379,6 +1380,8 @@
+ 	 */
+ 	if (cpu_has_mips_r2) {
+ 		cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
++		if (get_c0_compare_irq)
++			cp0_compare_irq = get_c0_compare_irq();
+ 		cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
+ 		if (cp0_perfcount_irq == cp0_compare_irq)
+ 			cp0_perfcount_irq = -1;
+--- a/include/asm-mips/time.h
++++ b/include/asm-mips/time.h
+@@ -53,6 +53,7 @@
+ #ifdef CONFIG_CEVT_R4K
+ extern int mips_clockevent_init(void);
+ extern unsigned int __weak get_c0_compare_int(void);
++extern unsigned int __weak get_c0_compare_irq(void);
+ #else
+ static inline int mips_clockevent_init(void)
+ {

target/linux/ar71xx/patches/902-mips_clocksource_init_war.patch

@@ -0,0 +1,45 @@
+--- a/include/asm-mips/hazards.h
++++ b/include/asm-mips/hazards.h
+@@ -64,7 +64,7 @@
+ 	_ehb
+ 	)
+ ASMMACRO(back_to_back_c0_hazard,
+-	 _ehb
++	 _ssnop; _ssnop; _ssnop; _ehb
+ 	)
+ /*
+  * gcc has a tradition of misscompiling the previous construct using the
+--- a/arch/mips/kernel/cevt-r4k.c
++++ b/arch/mips/kernel/cevt-r4k.c
+@@ -187,7 +187,7 @@
+ 	 */
+ 	if (c0_compare_int_pending()) {
+ 		write_c0_compare(read_c0_count());
+-		irq_disable_hazard();
++		back_to_back_c0_hazard();		
+ 		if (c0_compare_int_pending())
+ 			return 0;
+ 	}
+@@ -196,7 +196,7 @@
+ 		cnt = read_c0_count();
+ 		cnt += delta;
+ 		write_c0_compare(cnt);
+-		irq_disable_hazard();
++		back_to_back_c0_hazard();		
+ 		if ((int)(read_c0_count() - cnt) < 0)
+ 		    break;
+ 		/* increase delta if the timer was already expired */
+@@ -205,11 +205,12 @@
+ 	while ((int)(read_c0_count() - cnt) <= 0)
+ 		;	/* Wait for expiry  */
+ 
++	back_to_back_c0_hazard();
+ 	if (!c0_compare_int_pending())
+ 		return 0;
+ 
+ 	write_c0_compare(read_c0_count());
+-	irq_disable_hazard();
++	back_to_back_c0_hazard();		
+ 	if (c0_compare_int_pending())
+ 		return 0;
+ 

target/linux/generic-2.6/patches-2.6.25/910-m25p80_redboot_partitions.patch

@@ -0,0 +1,17 @@
+diff -Nur a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
+--- a/drivers/mtd/devices/m25p80.c	2008-07-06 14:36:59.000000000 +0200
++++ b/drivers/mtd/devices/m25p80.c	2008-07-06 15:17:48.000000000 +0200
+@@ -631,12 +631,10 @@
+ 		struct mtd_partition	*parts = NULL;
+ 		int			nr_parts = 0;
+ 
+-#ifdef CONFIG_MTD_CMDLINE_PARTS
+-		static const char *part_probes[] = { "cmdlinepart", NULL, };
++		static const char *part_probes[] = { "RedBoot", "cmdlinepart", NULL, };
+ 
+ 		nr_parts = parse_mtd_partitions(&flash->mtd,
+ 				part_probes, &parts, 0);
+-#endif
+ 
+ 		if (nr_parts <= 0 && data && data->parts) {
+ 			parts = data->parts;

target/linux/generic-2.6/patches-2.6.25/920-backport-gpio-is-valid.patch

@@ -1,18 +0,0 @@
-Backport gpio_is_valid() for gpiolib from linux-2.6.26
-Index: linux-2.6.25.10/include/asm-generic/gpio.h
-===================================================================
---- linux-2.6.25.10.orig/include/asm-generic/gpio.h	2008-07-03 05:46:47.000000000 +0200
-+++ linux-2.6.25.10/include/asm-generic/gpio.h	2008-07-20 20:32:12.000000000 +0200
-@@ -16,6 +16,12 @@
- #define ARCH_NR_GPIOS		256
- #endif
- 
-+static inline int gpio_is_valid(int number)
-+{
-+	/* only some non-negative numbers are valid */
-+	return ((unsigned)number) < ARCH_NR_GPIOS;
-+}
-+
- struct seq_file;
- 
- /**

target/linux/generic-2.6/patches-2.6.25/960-backport_gpiolib_better_rmmod_infrastructure.patch

@@ -0,0 +1,93 @@
+From: Guennadi Liakhovetski <[email protected]>
+Date: Mon, 28 Apr 2008 09:14:44 +0000 (-0700)
+Subject: gpiolib: better rmmod infrastructure
+X-Git-Tag: v2.6.26-rc1~851
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=438d8908b379b6322fc3b28d45c9ebdddf58bc20
+
+gpiolib: better rmmod infrastructure
+
+As long as one or more GPIOs on a gpio chip are used its driver should not be
+unloaded.  The existing mechanism (gpiochip_remove failure) doesn't address
+that, since rmmod can no longer be made to fail by having the cleanup code
+report errors.  Module usecounts are the solution.
+
+Assuming standard "initialize struct to zero" policies, this change won't
+affect SOC platform drivers.  However, drivers for external chips (on I2C and
+SPI busses) should be updated if they can be built as modules.
+
+Signed-off-by: Guennadi Liakhovetski <[email protected]>
+[ gpio_ensure_requested() needs to update module usecounts too ]
+Signed-off-by: David Brownell <[email protected]>
+Signed-off-by: Andrew Morton <[email protected]>
+Signed-off-by: Linus Torvalds <[email protected]>
+---
+
+diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
+index d8db2f8..eb75d12 100644
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -68,6 +68,9 @@ static void gpio_ensure_requested(struct gpio_desc *desc)
+ 	if (test_and_set_bit(FLAG_REQUESTED, &desc->flags) == 0) {
+ 		pr_warning("GPIO-%d autorequested\n", (int)(desc - gpio_desc));
+ 		desc_set_label(desc, "[auto]");
++		if (!try_module_get(desc->chip->owner))
++			pr_err("GPIO-%d: module can't be gotten \n",
++					(int)(desc - gpio_desc));
+ 	}
+ }
+ 
+@@ -177,6 +180,9 @@ int gpio_request(unsigned gpio, const char *label)
+ 	if (desc->chip == NULL)
+ 		goto done;
+ 
++	if (!try_module_get(desc->chip->owner))
++		goto done;
++
+ 	/* NOTE:  gpio_request() can be called in early boot,
+ 	 * before IRQs are enabled.
+ 	 */
+@@ -184,8 +190,10 @@ int gpio_request(unsigned gpio, const char *label)
+ 	if (test_and_set_bit(FLAG_REQUESTED, &desc->flags) == 0) {
+ 		desc_set_label(desc, label ? : "?");
+ 		status = 0;
+-	} else
++	} else {
+ 		status = -EBUSY;
++		module_put(desc->chip->owner);
++	}
+ 
+ done:
+ 	if (status)
+@@ -209,9 +217,10 @@ void gpio_free(unsigned gpio)
+ 	spin_lock_irqsave(&gpio_lock, flags);
+ 
+ 	desc = &gpio_desc[gpio];
+-	if (desc->chip && test_and_clear_bit(FLAG_REQUESTED, &desc->flags))
++	if (desc->chip && test_and_clear_bit(FLAG_REQUESTED, &desc->flags)) {
+ 		desc_set_label(desc, NULL);
+-	else
++		module_put(desc->chip->owner);
++	} else
+ 		WARN_ON(extra_checks);
+ 
+ 	spin_unlock_irqrestore(&gpio_lock, flags);
+diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
+index f29a502..7e77b6f 100644
+--- a/include/asm-generic/gpio.h
++++ b/include/asm-generic/gpio.h
+@@ -17,6 +17,7 @@
+ #endif
+ 
+ struct seq_file;
++struct module;
+ 
+ /**
+  * struct gpio_chip - abstract a GPIO controller
+@@ -48,6 +49,7 @@ struct seq_file;
+  */
+ struct gpio_chip {
+ 	char			*label;
++	struct module		*owner;
+ 
+ 	int			(*direction_input)(struct gpio_chip *chip,
+ 						unsigned offset);

target/linux/generic-2.6/patches-2.6.25/961-backport_gpio_define_gpio_valid.patch

@@ -0,0 +1,136 @@
+From: Guennadi Liakhovetski <[email protected]>
+Date: Mon, 28 Apr 2008 09:14:46 +0000 (-0700)
+Subject: gpio: define gpio_is_valid()
+X-Git-Tag: v2.6.26-rc1~849
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=e6de1808f8ebfeb7e49f3c5a30cb8f2032beb287
+
+gpio: define gpio_is_valid()
+
+Introduce a gpio_is_valid() predicate; use it in gpiolib.
+
+Signed-off-by: Guennadi Liakhovetski <[email protected]>
+    [ use inline function; follow the gpio_* naming convention;
+      work without gpiolib; all programming interfaces need docs ]
+Signed-off-by: David Brownell <[email protected]>
+Signed-off-by: Andrew Morton <[email protected]>
+Signed-off-by: Linus Torvalds <[email protected]>
+---
+
+diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt
+index 5463009..c35ca9e 100644
+--- a/Documentation/gpio.txt
++++ b/Documentation/gpio.txt
+@@ -107,6 +107,16 @@ type of GPIO controller, and on one particular board 80-95 with an FPGA.
+ The numbers need not be contiguous; either of those platforms could also
+ use numbers 2000-2063 to identify GPIOs in a bank of I2C GPIO expanders.
+ 
++If you want to initialize a structure with an invalid GPIO number, use
++some negative number (perhaps "-EINVAL"); that will never be valid.  To
++test if a number could reference a GPIO, you may use this predicate:
++
++	int gpio_is_valid(int number);
++
++A number that's not valid will be rejected by calls which may request
++or free GPIOs (see below).  Other numbers may also be rejected; for
++example, a number might be valid but unused on a given board.
++
+ Whether a platform supports multiple GPIO controllers is currently a
+ platform-specific implementation issue.
+ 
+diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
+index eb75d12..623fcd9 100644
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -99,7 +99,7 @@ int gpiochip_add(struct gpio_chip *chip)
+ 	 * dynamic allocation.  We don't currently support that.
+ 	 */
+ 
+-	if (chip->base < 0 || (chip->base  + chip->ngpio) >= ARCH_NR_GPIOS) {
++	if (chip->base < 0 || !gpio_is_valid(chip->base  + chip->ngpio)) {
+ 		status = -EINVAL;
+ 		goto fail;
+ 	}
+@@ -174,7 +174,7 @@ int gpio_request(unsigned gpio, const char *label)
+ 
+ 	spin_lock_irqsave(&gpio_lock, flags);
+ 
+-	if (gpio >= ARCH_NR_GPIOS)
++	if (!gpio_is_valid(gpio))
+ 		goto done;
+ 	desc = &gpio_desc[gpio];
+ 	if (desc->chip == NULL)
+@@ -209,7 +209,7 @@ void gpio_free(unsigned gpio)
+ 	unsigned long		flags;
+ 	struct gpio_desc	*desc;
+ 
+-	if (gpio >= ARCH_NR_GPIOS) {
++	if (!gpio_is_valid(gpio)) {
+ 		WARN_ON(extra_checks);
+ 		return;
+ 	}
+@@ -245,7 +245,7 @@ const char *gpiochip_is_requested(struct gpio_chip *chip, unsigned offset)
+ {
+ 	unsigned gpio = chip->base + offset;
+ 
+-	if (gpio >= ARCH_NR_GPIOS || gpio_desc[gpio].chip != chip)
++	if (!gpio_is_valid(gpio) || gpio_desc[gpio].chip != chip)
+ 		return NULL;
+ 	if (test_bit(FLAG_REQUESTED, &gpio_desc[gpio].flags) == 0)
+ 		return NULL;
+@@ -276,7 +276,7 @@ int gpio_direction_input(unsigned gpio)
+ 
+ 	spin_lock_irqsave(&gpio_lock, flags);
+ 
+-	if (gpio >= ARCH_NR_GPIOS)
++	if (!gpio_is_valid(gpio))
+ 		goto fail;
+ 	chip = desc->chip;
+ 	if (!chip || !chip->get || !chip->direction_input)
+@@ -314,7 +314,7 @@ int gpio_direction_output(unsigned gpio, int value)
+ 
+ 	spin_lock_irqsave(&gpio_lock, flags);
+ 
+-	if (gpio >= ARCH_NR_GPIOS)
++	if (!gpio_is_valid(gpio))
+ 		goto fail;
+ 	chip = desc->chip;
+ 	if (!chip || !chip->set || !chip->direction_output)
+@@ -531,7 +531,7 @@ static int gpiolib_show(struct seq_file *s, void *unused)
+ 
+ 	/* REVISIT this isn't locked against gpio_chip removal ... */
+ 
+-	for (gpio = 0; gpio < ARCH_NR_GPIOS; gpio++) {
++	for (gpio = 0; gpio_is_valid(gpio); gpio++) {
+ 		if (chip == gpio_desc[gpio].chip)
+ 			continue;
+ 		chip = gpio_desc[gpio].chip;
+diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
+index 7e77b6f..464c5b3 100644
+--- a/include/asm-generic/gpio.h
++++ b/include/asm-generic/gpio.h
+@@ -16,6 +16,12 @@
+ #define ARCH_NR_GPIOS		256
+ #endif
+ 
++static inline int gpio_is_valid(int number)
++{
++	/* only some non-negative numbers are valid */
++	return ((unsigned)number) < ARCH_NR_GPIOS;
++}
++
+ struct seq_file;
+ struct module;
+ 
+@@ -99,6 +105,12 @@ extern int __gpio_cansleep(unsigned gpio);
+ 
+ #else
+ 
++static inline int gpio_is_valid(int number)
++{
++	/* only non-negative numbers are valid */
++	return number >= 0;
++}
++
+ /* platforms that don't directly support access to GPIOs through I2C, SPI,
+  * or other blocking infrastructure can use these wrappers.
+  */

target/linux/generic-2.6/patches-2.6.25/962-backport_gpiolib_dynamic_gpio_number_allocation.patch

@@ -0,0 +1,118 @@
+From: Anton Vorontsov <[email protected]>
+Date: Mon, 28 Apr 2008 09:14:46 +0000 (-0700)
+Subject: gpiolib: dynamic gpio number allocation
+X-Git-Tag: v2.6.26-rc1~848
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=8d0aab2f16c4fa170f32e7a74a52cd0122bbafef
+
+gpiolib: dynamic gpio number allocation
+
+If gpio_chip->base is negative during registration, gpiolib performs dynamic
+base allocation.  This is useful for devices that aren't always present, such
+as GPIOs on hotplugged devices rather than mainboards.  (This behavior was
+previously specified but not implemented.)
+
+To avoid using any numbers that may have been explicitly assigned but not yet
+registered, this dynamic allocation assigns GPIO numbers from the biggest
+number on down, instead of from the smallest on up.
+
+Signed-off-by: Anton Vorontsov <[email protected]>
+Signed-off-by: David Brownell <[email protected]>
+Signed-off-by: Andrew Morton <[email protected]>
+Signed-off-by: Linus Torvalds <[email protected]>
+---
+
+diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
+index 623fcd9..2ba6127 100644
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -80,6 +80,33 @@ static inline struct gpio_chip *gpio_to_chip(unsigned gpio)
+ 	return gpio_desc[gpio].chip;
+ }
+ 
++/* dynamic allocation of GPIOs, e.g. on a hotplugged device */
++static int gpiochip_find_base(int ngpio)
++{
++	int i;
++	int spare = 0;
++	int base = -ENOSPC;
++
++	for (i = ARCH_NR_GPIOS - 1; i >= 0 ; i--) {
++		struct gpio_chip *chip = gpio_desc[i].chip;
++
++		if (!chip) {
++			spare++;
++			if (spare == ngpio) {
++				base = i;
++				break;
++			}
++		} else {
++			spare = 0;
++			i -= chip->ngpio - 1;
++		}
++	}
++
++	if (gpio_is_valid(base))
++		pr_debug("%s: found new base at %d\n", __func__, base);
++	return base;
++}
++
+ /**
+  * gpiochip_add() - register a gpio_chip
+  * @chip: the chip to register, with chip->base initialized
+@@ -88,38 +115,49 @@ static inline struct gpio_chip *gpio_to_chip(unsigned gpio)
+  * Returns a negative errno if the chip can't be registered, such as
+  * because the chip->base is invalid or already associated with a
+  * different chip.  Otherwise it returns zero as a success code.
++ *
++ * If chip->base is negative, this requests dynamic assignment of
++ * a range of valid GPIOs.
+  */
+ int gpiochip_add(struct gpio_chip *chip)
+ {
+ 	unsigned long	flags;
+ 	int		status = 0;
+ 	unsigned	id;
++	int		base = chip->base;
+ 
+-	/* NOTE chip->base negative is reserved to mean a request for
+-	 * dynamic allocation.  We don't currently support that.
+-	 */
+-
+-	if (chip->base < 0 || !gpio_is_valid(chip->base  + chip->ngpio)) {
++	if ((!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio))
++			&& base >= 0) {
+ 		status = -EINVAL;
+ 		goto fail;
+ 	}
+ 
+ 	spin_lock_irqsave(&gpio_lock, flags);
+ 
++	if (base < 0) {
++		base = gpiochip_find_base(chip->ngpio);
++		if (base < 0) {
++			status = base;
++			goto fail_unlock;
++		}
++		chip->base = base;
++	}
++
+ 	/* these GPIO numbers must not be managed by another gpio_chip */
+-	for (id = chip->base; id < chip->base + chip->ngpio; id++) {
++	for (id = base; id < base + chip->ngpio; id++) {
+ 		if (gpio_desc[id].chip != NULL) {
+ 			status = -EBUSY;
+ 			break;
+ 		}
+ 	}
+ 	if (status == 0) {
+-		for (id = chip->base; id < chip->base + chip->ngpio; id++) {
++		for (id = base; id < base + chip->ngpio; id++) {
+ 			gpio_desc[id].chip = chip;
+ 			gpio_desc[id].flags = 0;
+ 		}
+ 	}
+ 
++fail_unlock:
+ 	spin_unlock_irqrestore(&gpio_lock, flags);
+ fail:
+ 	/* failures here can mean systems won't boot... */

target/linux/generic-2.6/patches-2.6.25/963-backport_gpio_chip_reserve.patch

@@ -0,0 +1,116 @@
+From: Anton Vorontsov <[email protected]>
+Date: Mon, 28 Apr 2008 09:14:47 +0000 (-0700)
+Subject: gpiochip_reserve()
+X-Git-Tag: v2.6.26-rc1~847
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=169b6a7a6e91e1ea32136681b475cbaf2074bf35
+
+gpiochip_reserve()
+
+Add a new function gpiochip_reserve() to reserve ranges of gpios that platform
+code has pre-allocated.  That is, this marks gpio numbers which will be
+claimed by drivers that haven't yet been loaded, and thus are not available
+for dynamic gpio number allocation.
+
+[[email protected]: remove unneeded __must_check]
+[[email protected]: don't export gpiochip_reserve (section fix)]
+Signed-off-by: Anton Vorontsov <[email protected]>
+Signed-off-by: David Brownell <[email protected]>
+Signed-off-by: Andrew Morton <[email protected]>
+Signed-off-by: Linus Torvalds <[email protected]>
+---
+
+diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
+index 2ba6127..24c62b8 100644
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -43,6 +43,7 @@ struct gpio_desc {
+ /* flag symbols are bit numbers */
+ #define FLAG_REQUESTED	0
+ #define FLAG_IS_OUT	1
++#define FLAG_RESERVED	2
+ 
+ #ifdef CONFIG_DEBUG_FS
+ 	const char		*label;
+@@ -88,9 +89,10 @@ static int gpiochip_find_base(int ngpio)
+ 	int base = -ENOSPC;
+ 
+ 	for (i = ARCH_NR_GPIOS - 1; i >= 0 ; i--) {
+-		struct gpio_chip *chip = gpio_desc[i].chip;
++		struct gpio_desc *desc = &gpio_desc[i];
++		struct gpio_chip *chip = desc->chip;
+ 
+-		if (!chip) {
++		if (!chip && !test_bit(FLAG_RESERVED, &desc->flags)) {
+ 			spare++;
+ 			if (spare == ngpio) {
+ 				base = i;
+@@ -98,7 +100,8 @@ static int gpiochip_find_base(int ngpio)
+ 			}
+ 		} else {
+ 			spare = 0;
+-			i -= chip->ngpio - 1;
++			if (chip)
++				i -= chip->ngpio - 1;
+ 		}
+ 	}
+ 
+@@ -108,6 +111,47 @@ static int gpiochip_find_base(int ngpio)
+ }
+ 
+ /**
++ * gpiochip_reserve() - reserve range of gpios to use with platform code only
++ * @start: starting gpio number
++ * @ngpio: number of gpios to reserve
++ * Context: platform init, potentially before irqs or kmalloc will work
++ *
++ * Returns a negative errno if any gpio within the range is already reserved
++ * or registered, else returns zero as a success code.  Use this function
++ * to mark a range of gpios as unavailable for dynamic gpio number allocation,
++ * for example because its driver support is not yet loaded.
++ */
++int __init gpiochip_reserve(int start, int ngpio)
++{
++	int ret = 0;
++	unsigned long flags;
++	int i;
++
++	if (!gpio_is_valid(start) || !gpio_is_valid(start + ngpio))
++		return -EINVAL;
++
++	spin_lock_irqsave(&gpio_lock, flags);
++
++	for (i = start; i < start + ngpio; i++) {
++		struct gpio_desc *desc = &gpio_desc[i];
++
++		if (desc->chip || test_bit(FLAG_RESERVED, &desc->flags)) {
++			ret = -EBUSY;
++			goto err;
++		}
++
++		set_bit(FLAG_RESERVED, &desc->flags);
++	}
++
++	pr_debug("%s: reserved gpios from %d to %d\n",
++		 __func__, start, start + ngpio - 1);
++err:
++	spin_unlock_irqrestore(&gpio_lock, flags);
++
++	return ret;
++}
++
++/**
+  * gpiochip_add() - register a gpio_chip
+  * @chip: the chip to register, with chip->base initialized
+  * Context: potentially before irqs or kmalloc will work
+diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
+index 464c5b3..ecf675a 100644
+--- a/include/asm-generic/gpio.h
++++ b/include/asm-generic/gpio.h
+@@ -74,6 +74,7 @@ struct gpio_chip {
+ 
+ extern const char *gpiochip_is_requested(struct gpio_chip *chip,
+ 			unsigned offset);
++extern int __init __must_check gpiochip_reserve(int start, int ngpio);
+ 
+ /* add/remove chips */
+ extern int gpiochip_add(struct gpio_chip *chip);

target/linux/generic-2.6/patches-2.6.25/964-backport_gpiolib_fix_off_by_one_errors.patch

@@ -0,0 +1,48 @@
+From: Trent Piepho <[email protected]>
+Date: Fri, 23 May 2008 20:04:44 +0000 (-0700)
+Subject: gpiolib: fix off by one errors
+X-Git-Tag: v2.6.26-rc4~31
+X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftorvalds%2Flinux-2.6.git;a=commitdiff_plain;h=bff5fda972dc23bd1806a47c2098ae173585d013
+
+gpiolib: fix off by one errors
+
+The last gpio belonging to a chip is chip->base + chip->ngpios - 1.  Some
+places in the code, but not all, forgot the critical minus one.
+
+Signed-off-by: Trent Piepho <[email protected]>
+Acked-by: David Brownell <[email protected]>
+Signed-off-by: Andrew Morton <[email protected]>
+Signed-off-by: Linus Torvalds <[email protected]>
+---
+
+diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
+index 7f138c6..beaf6b3 100644
+--- a/drivers/gpio/gpiolib.c
++++ b/drivers/gpio/gpiolib.c
+@@ -127,7 +127,7 @@ int __init gpiochip_reserve(int start, int ngpio)
+ 	unsigned long flags;
+ 	int i;
+ 
+-	if (!gpio_is_valid(start) || !gpio_is_valid(start + ngpio))
++	if (!gpio_is_valid(start) || !gpio_is_valid(start + ngpio - 1))
+ 		return -EINVAL;
+ 
+ 	spin_lock_irqsave(&gpio_lock, flags);
+@@ -170,7 +170,7 @@ int gpiochip_add(struct gpio_chip *chip)
+ 	unsigned	id;
+ 	int		base = chip->base;
+ 
+-	if ((!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio))
++	if ((!gpio_is_valid(base) || !gpio_is_valid(base + chip->ngpio - 1))
+ 			&& base >= 0) {
+ 		status = -EINVAL;
+ 		goto fail;
+@@ -207,7 +207,7 @@ fail:
+ 	/* failures here can mean systems won't boot... */
+ 	if (status)
+ 		pr_err("gpiochip_add: gpios %d..%d (%s) not registered\n",
+-			chip->base, chip->base + chip->ngpio,
++			chip->base, chip->base + chip->ngpio - 1,
+ 			chip->label ? : "generic");
+ 	return status;
+ }

toolchain/Config.in

@@ -83,6 +83,7 @@ config TARGET_OPTIMIZATION
 	default "-O2 -pipe -march=i686 -funit-at-a-time" if TARGET_x86_mediacenter
 	default "-O2 -pipe -march=i486 -funit-at-a-time" if TARGET_x86
 	default "-Os -pipe -march=i486 -funit-at-a-time" if TARGET_rdc
+	default "-Os -pipe -mips32r2 -mtune=mips32r2 -funit-at-a-time" if TARGET_ar71xx
 	default "-Os -pipe -mips32 -mtune=mips32 -funit-at-a-time" if mipsel || mips
 	default "-Os -pipe -march=armv5te -mtune=xscale -funit-at-a-time" if TARGET_ixp4xx || TARGET_iop32x || TARGET_pxa || TARGET_orion
 	default "-Os -pipe -march=armv4t -mtune=arm9tdmi -funit-at-a-time" if TARGET_storm