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@@ -1,11 +1,18 @@
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/*
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* $Id$
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*
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- * Mikrotik RouterBOARDs 1xx series
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+ * Mikrotik RouterBOARD 1xx series
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*
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* Copyright (C) 2007 OpenWrt.org
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* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
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*
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+ * NAND initialization code was based on a driver for Linux 2.6.19+ which
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+ * was derived from the driver for Linux 2.4.xx published by Mikrotik for
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+ * their RouterBoard 1xx and 5xx series boards.
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+ * Copyright (C) 2007 David Goodenough <[email protected]>
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+ * Copyright (C) 2007 Florian Fainelli <[email protected]>
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+ * The original Mikrotik code seems not to have a license.
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+ *
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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@@ -25,13 +32,33 @@
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#include <linux/kernel.h>
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#include <linux/init.h>
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+#include <linux/delay.h>
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#include <asm/bootinfo.h>
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#include <asm/gpio.h>
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+#include <adm5120_defs.h>
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+#include <adm5120_irq.h>
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+#include <adm5120_nand.h>
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#include <adm5120_board.h>
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#include <adm5120_platform.h>
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-#include <adm5120_irq.h>
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+
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+#define RB1XX_NAND_CHIP_DELAY 25
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+
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+#define RB150_NAND_BASE 0x1FC80000
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+#define RB150_NAND_SIZE 1
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+
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+#define RB150_GPIO_NAND_READY ADM5120_GPIO_PIN0
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+#define RB150_GPIO_NAND_NCE ADM5120_GPIO_PIN1
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+#define RB150_GPIO_NAND_CLE ADM5120_GPIO_P2L2
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+#define RB150_GPIO_NAND_ALE ADM5120_GPIO_P3L2
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+
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+#define RB150_NAND_DELAY 100
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+
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+#define RB150_NAND_WRITE(v) \
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+ writeb((v),(void __iomem *)KSEG1ADDR(RB150_NAND_BASE))
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+
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+/*--------------------------------------------------------------------------*/
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static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
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PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
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@@ -39,7 +66,7 @@ static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
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PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
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};
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-static struct mtd_partition rb1xx_partitions[] = {
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+static struct mtd_partition rb1xx_nor_partitions[] = {
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{
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.name = "booter",
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.offset = 0,
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@@ -52,24 +79,42 @@ static struct mtd_partition rb1xx_partitions[] = {
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}
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};
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+static struct mtd_partition rb1xx_nand_partitions[] = {
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+ {
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+ .name = "kernel",
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+ .offset = 0,
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+ .size = 4 * 1024 * 1024,
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+ } , {
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+ .name = "rootfs",
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+ .offset = MTDPART_OFS_NXTBLK,
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+ .size = MTDPART_SIZ_FULL
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+ }
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+};
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+
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static struct platform_device *rb1xx_devices[] __initdata = {
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&adm5120_flash0_device,
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&adm5120_nand_device,
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};
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-static struct platform_device *rb150_devices[] __initdata = {
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- &adm5120_flash0_device,
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- /* TODO: nand device is not yet supported */
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+/*
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+ * We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader
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+ * will not be able to find the kernel that we load. So set the oobinfo
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+ * when creating the partitions
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+ */
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+static struct nand_ecclayout rb1xx_nand_ecclayout = {
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+ .eccbytes = 6,
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+ .eccpos = { 8, 9, 10, 13, 14, 15 },
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+ .oobavail = 9,
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+ .oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1 } }
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};
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-static void __init rb1xx_setup(void)
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-{
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- /* setup data for flash0 device */
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- adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_partitions);
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- adm5120_flash0_data.parts = rb1xx_partitions;
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-
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- /* TODO: setup mac address */
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-}
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+static struct resource rb150_nand_resource[] = {
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+ [0] = {
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+ .start = RB150_NAND_BASE,
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+ .end = RB150_NAND_BASE + RB150_NAND_SIZE-1,
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+ .flags = IORESOURCE_MEM,
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+ },
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+};
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#if 0
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/*
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@@ -110,6 +155,86 @@ static unsigned char rb_vlans[6] __initdata = {
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#define rb192_vlans rb_vlans
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#endif
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+/*--------------------------------------------------------------------------*/
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+
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+static int rb150_nand_ready(struct mtd_info *mtd) {
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+
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+ return gpio_get_value(RB150_GPIO_NAND_READY);
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+}
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+
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+static void rb150_nand_cmd_ctrl(struct mtd_info *mtd, int cmd,
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+ unsigned int ctrl)
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+{
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+ if (ctrl & NAND_CTRL_CHANGE) {
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+ gpio_set_value(RB150_GPIO_NAND_CLE, (ctrl & NAND_CLE) ? 1 : 0);
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+ gpio_set_value(RB150_GPIO_NAND_ALE, (ctrl & NAND_ALE) ? 1 : 0);
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+ gpio_set_value(RB150_GPIO_NAND_NCE, (ctrl & NAND_NCE) ? 0 : 1);
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+ }
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+
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+ udelay(RB150_NAND_DELAY);
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+
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+ if (cmd != NAND_CMD_NONE)
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+ RB150_NAND_WRITE(cmd);
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+}
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+
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+/*--------------------------------------------------------------------------*/
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+
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+static void __init rb1xx_mac_setup(void)
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+{
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+ /* TODO */
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+}
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+
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+static void __init rb1xx_flash_setup(void)
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+{
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+ /* setup data for flash0 device */
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+ adm5120_flash0_data.nr_parts = ARRAY_SIZE(rb1xx_nor_partitions);
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+ adm5120_flash0_data.parts = rb1xx_nor_partitions;
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+
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+ /* setup data for NAND device */
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+ adm5120_nand_data.chip.nr_chips = 1;
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+ adm5120_nand_data.chip.nr_partitions = ARRAY_SIZE(rb1xx_nand_partitions);
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+ adm5120_nand_data.chip.partitions = rb1xx_nand_partitions;
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+ adm5120_nand_data.chip.ecclayout = &rb1xx_nand_ecclayout;
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+ adm5120_nand_data.chip.chip_delay = RB1XX_NAND_CHIP_DELAY;
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+ adm5120_nand_data.chip.options = NAND_NO_AUTOINCR;
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+}
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+
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+static void __init rb1xx_setup(void)
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+{
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+ /* enable NAND flash interface */
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+ adm5120_nand_enable();
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+
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+ /* initialize NAND chip */
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+ adm5120_nand_set_spn(1);
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+ adm5120_nand_set_wpn(0);
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+
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+ rb1xx_flash_setup();
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+ rb1xx_mac_setup();
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+}
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+
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+static void __init rb150_setup(void)
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+{
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+ /* setup GPIO pins for NAND flash chip */
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+ gpio_request(RB150_GPIO_NAND_READY, "nand-ready");
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+ gpio_direction_input(RB150_GPIO_NAND_READY);
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+ gpio_request(RB150_GPIO_NAND_NCE, "nand-nce");
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+ gpio_direction_output(RB150_GPIO_NAND_NCE, 1);
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+ gpio_request(RB150_GPIO_NAND_CLE, "nand-cle");
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+ gpio_direction_output(RB150_GPIO_NAND_CLE, 0);
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+ gpio_request(RB150_GPIO_NAND_ALE, "nand-ale");
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+ gpio_direction_output(RB150_GPIO_NAND_ALE, 0);
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+
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+ adm5120_nand_device.num_resources = ARRAY_SIZE(rb150_nand_resource);
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+ adm5120_nand_device.resource = rb150_nand_resource;
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+ adm5120_nand_data.ctrl.cmd_ctrl = rb150_nand_cmd_ctrl;
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+ adm5120_nand_data.ctrl.dev_ready = rb150_nand_ready;
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+
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+ rb1xx_flash_setup();
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+ rb1xx_mac_setup();
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+}
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+
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+/*--------------------------------------------------------------------------*/
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+
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static struct adm5120_board rb111_board __initdata = {
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.mach_type = MACH_ADM5120_RB_111,
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.name = "Mikrotik RouterBOARD 111",
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@@ -161,11 +286,11 @@ static struct adm5120_board rb133c_board __initdata = {
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static struct adm5120_board rb150_board __initdata = {
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.mach_type = MACH_ADM5120_RB_150,
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.name = "Mikrotik RouterBOARD 150",
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- .board_setup = rb1xx_setup,
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+ .board_setup = rb150_setup,
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.eth_num_ports = 5,
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.eth_vlans = rb15x_vlans,
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- .num_devices = ARRAY_SIZE(rb150_devices),
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- .devices = rb150_devices,
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+ .num_devices = ARRAY_SIZE(rb1xx_devices),
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+ .devices = rb1xx_devices,
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};
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static struct adm5120_board rb153_board __initdata = {
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Gabor Juhos