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@@ -0,0 +1,433 @@
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+--- a/drivers/ata/Kconfig
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++++ b/drivers/ata/Kconfig
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+@@ -144,6 +144,16 @@ config PDC_ADMA
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+
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+ If unsure, say N.
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+
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++config PATA_MAGICBOX_CF
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++ tristate "Magicbox/OpenRB Compact Flash support"
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++ depends on MAGICBOX || OPENRB
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++ help
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++ This option enables support for a Compact Flash conected on
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++ the ppc405ep expansion bus. This driver had been written for
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++ the Magicbox v2 and OpenRB boards.
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++
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++ If unsure, say N.
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++
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+ config PATA_OCTEON_CF
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+ tristate "OCTEON Boot Bus Compact Flash support"
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+ depends on CPU_CAVIUM_OCTEON
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+--- a/drivers/ata/Makefile
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++++ b/drivers/ata/Makefile
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+@@ -81,6 +81,7 @@ obj-$(CONFIG_PATA_AT91) += pata_at91.o
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+ obj-$(CONFIG_PATA_CMD640_PCI) += pata_cmd640.o
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+ obj-$(CONFIG_PATA_ISAPNP) += pata_isapnp.o
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+ obj-$(CONFIG_PATA_IXP4XX_CF) += pata_ixp4xx_cf.o
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++obj-$(CONFIG_PATA_MAGICBOX_CF) += pata_magicbox_cf.o
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+ obj-$(CONFIG_PATA_MPIIX) += pata_mpiix.o
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+ obj-$(CONFIG_PATA_NS87410) += pata_ns87410.o
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+ obj-$(CONFIG_PATA_OPTI) += pata_opti.o
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+--- /dev/null
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++++ b/drivers/ata/pata_magicbox_cf.c
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+@@ -0,0 +1,401 @@
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++/*
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++ * PATA/CompactFlash driver for the MagicBox v2/OpenRB boards.
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++ *
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++ * Copyright (C) 2009,2012 Gabor Juhos <[email protected]>
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++ *
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++ * Based on the IDE driver by Wojtek Kaniewski <[email protected]>
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++ *
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++ * This program is free software; you can redistribute it and/or modify it
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++ * under the terms of the GNU General Public License version 2 as published
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++ * by the Free Software Foundation.
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++ */
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++
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++#include <linux/kernel.h>
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++#include <linux/module.h>
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++#include <linux/slab.h>
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++#include <linux/types.h>
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++#include <linux/ioport.h>
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++#include <linux/libata.h>
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++#include <linux/irq.h>
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++//#include <linux/of.h>
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++//#include <linux/of_device.h>
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++#include <linux/of_platform.h>
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++#include <scsi/scsi_host.h>
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++
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++#define DRV_DESC "PATA/CompactFlash driver for Magicbox/OpenRB boards"
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++#define DRV_NAME "pata_magicbox_cf"
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++#define DRV_VERSION "0.1.0"
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++
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++#define MAGICBOX_CF_REG_CMD (2 * ATA_REG_CMD)
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++#define MAGICBOX_CF_REG_DATA (2 * ATA_REG_DATA)
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++#define MAGICBOX_CF_REG_ERR (2 * ATA_REG_ERR)
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++#define MAGICBOX_CF_REG_FEATURE (2 * ATA_REG_FEATURE)
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++#define MAGICBOX_CF_REG_NSECT (2 * ATA_REG_NSECT)
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++#define MAGICBOX_CF_REG_LBAL (2 * ATA_REG_LBAL)
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++#define MAGICBOX_CF_REG_LBAM (2 * ATA_REG_LBAM)
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++#define MAGICBOX_CF_REG_LBAH (2 * ATA_REG_LBAH)
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++#define MAGICBOX_CF_REG_DEVICE (2 * ATA_REG_DEVICE)
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++#define MAGICBOX_CF_REG_STATUS (2 * ATA_REG_STATUS)
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++#define MAGICBOX_CF_REG_ALTSTATUS (2 * 6)
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++#define MAGICBOX_CF_REG_CTL (2 * 6)
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++
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++#define MAGICBOX_CF_MAXPORTS 1
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++
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++struct magicbox_cf_info {
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++ void __iomem *base;
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++ void __iomem *ctrl;
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++};
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++
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++static inline u8 magicbox_cf_inb(void __iomem *port)
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++{
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++ return (u8) (readw(port) >> 8) & 0xff;
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++}
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++
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++static inline void magicbox_cf_outb(void __iomem *port, u8 value)
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++{
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++ writew(value << 8, port);
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++}
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++
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++static int magicbox_cf_set_mode(struct ata_link *link,
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++ struct ata_device **error)
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++{
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++ struct ata_device *dev;
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++
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++ ata_for_each_dev(dev, link, ENABLED) {
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++ ata_dev_printk(dev, KERN_INFO, "configured for PIO0\n");
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++ dev->pio_mode = XFER_PIO_0;
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++ dev->xfer_mode = XFER_PIO_0;
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++ dev->xfer_shift = ATA_SHIFT_PIO;
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++ dev->flags |= ATA_DFLAG_PIO;
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++ }
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++
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++ return 0;
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++}
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++
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++static void magicbox_cf_exec_command(struct ata_port *ap,
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++ const struct ata_taskfile *tf)
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++{
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++ DPRINTK("ata%u: cmd 0x%X\n", ap->print_id, tf->command);
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++
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++ magicbox_cf_outb(ap->ioaddr.command_addr, tf->command);
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++ ata_sff_pause(ap);
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++}
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++
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++static u8 magicbox_cf_check_status(struct ata_port *ap)
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++{
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++ u8 status;
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++
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++ status = magicbox_cf_inb(ap->ioaddr.status_addr);
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++
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++ DPRINTK("ata%u: status 0x%X, from %p\n", ap->print_id, status,
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++ ap->ioaddr.status_addr);
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++
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++ return status;
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++}
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++
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++static u8 magicbox_cf_check_altstatus(struct ata_port *ap)
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++{
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++ u8 altstatus;
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++
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++ altstatus = magicbox_cf_inb(ap->ioaddr.altstatus_addr);
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++
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++ DPRINTK("ata%u: altstatus 0x%X, from %p\n", ap->print_id,
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++ altstatus, ap->ioaddr.altstatus_addr);
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++
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++ return altstatus;
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++}
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++
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++static void magicbox_cf_dev_select(struct ata_port *ap, unsigned int device)
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++{
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++ /* Nothing to do. We are supporting one device only. */
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++}
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++
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++static void magicbox_cf_tf_load(struct ata_port *ap,
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++ const struct ata_taskfile *tf)
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++{
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++ struct ata_ioports *ioaddr = &ap->ioaddr;
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++ unsigned int is_addr = tf->flags & ATA_TFLAG_ISADDR;
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++
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++ if (tf->ctl != ap->last_ctl) {
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++ magicbox_cf_outb(ioaddr->ctl_addr, tf->ctl);
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++ ap->last_ctl = tf->ctl;
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++ ata_wait_idle(ap);
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++ }
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++
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++ if (is_addr && (tf->flags & ATA_TFLAG_LBA48)) {
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++ magicbox_cf_outb(ioaddr->feature_addr, tf->hob_feature);
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++ magicbox_cf_outb(ioaddr->nsect_addr, tf->hob_nsect);
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++ magicbox_cf_outb(ioaddr->lbal_addr, tf->hob_lbal);
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++ magicbox_cf_outb(ioaddr->lbam_addr, tf->hob_lbam);
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++ magicbox_cf_outb(ioaddr->lbah_addr, tf->hob_lbah);
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++ VPRINTK("hob: feat 0x%X nsect 0x%X, lba 0x%X 0x%X 0x%X\n",
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++ tf->hob_feature,
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++ tf->hob_nsect,
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++ tf->hob_lbal,
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++ tf->hob_lbam,
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++ tf->hob_lbah);
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++ }
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++
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++ if (is_addr) {
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++ magicbox_cf_outb(ioaddr->feature_addr, tf->feature);
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++ magicbox_cf_outb(ioaddr->nsect_addr, tf->nsect);
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++ magicbox_cf_outb(ioaddr->lbal_addr, tf->lbal);
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++ magicbox_cf_outb(ioaddr->lbam_addr, tf->lbam);
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++ magicbox_cf_outb(ioaddr->lbah_addr, tf->lbah);
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++ VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
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++ tf->feature,
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++ tf->nsect,
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++ tf->lbal,
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++ tf->lbam,
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++ tf->lbah);
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++ }
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++
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++ if (tf->flags & ATA_TFLAG_DEVICE) {
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++ magicbox_cf_outb(ioaddr->device_addr, tf->device);
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++ VPRINTK("device 0x%X\n", tf->device);
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++ }
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++
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++ ata_wait_idle(ap);
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++}
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++
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++static void magicbox_cf_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
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++{
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++ struct ata_ioports *ioaddr = &ap->ioaddr;
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++
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++ tf->command = magicbox_cf_inb(ap->ioaddr.status_addr);
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++ tf->feature = magicbox_cf_inb(ioaddr->error_addr);
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++ tf->nsect = magicbox_cf_inb(ioaddr->nsect_addr);
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++ tf->lbal = magicbox_cf_inb(ioaddr->lbal_addr);
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++ tf->lbam = magicbox_cf_inb(ioaddr->lbam_addr);
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++ tf->lbah = magicbox_cf_inb(ioaddr->lbah_addr);
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++ tf->device = magicbox_cf_inb(ioaddr->device_addr);
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++ VPRINTK("feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
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++ tf->feature,
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++ tf->nsect,
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++ tf->lbal,
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++ tf->lbam,
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++ tf->lbah);
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++
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++ if (tf->flags & ATA_TFLAG_LBA48) {
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++ magicbox_cf_outb(ioaddr->ctl_addr, tf->ctl | ATA_HOB);
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++ tf->hob_feature = magicbox_cf_inb(ioaddr->error_addr);
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++ tf->hob_nsect = magicbox_cf_inb(ioaddr->nsect_addr);
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++ tf->hob_lbal = magicbox_cf_inb(ioaddr->lbal_addr);
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++ tf->hob_lbam = magicbox_cf_inb(ioaddr->lbam_addr);
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++ tf->hob_lbah = magicbox_cf_inb(ioaddr->lbah_addr);
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++ magicbox_cf_outb(ioaddr->ctl_addr, tf->ctl);
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++ ap->last_ctl = tf->ctl;
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++ VPRINTK("hob: feat 0x%X nsect 0x%X lba 0x%X 0x%X 0x%X\n",
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++ tf->feature,
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++ tf->nsect,
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++ tf->lbal,
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++ tf->lbam,
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++ tf->lbah);
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++ }
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++}
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++
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++static unsigned int magicbox_cf_data_xfer(struct ata_device *dev,
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++ unsigned char *buf,
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++ unsigned int buflen, int rw)
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++{
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++ struct ata_port *ap = dev->link->ap;
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++ unsigned int words = buflen >> 1;
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++ unsigned int i;
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++ u16 *buf16 = (u16 *) buf;
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++ void __iomem *mmio = ap->ioaddr.data_addr;
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++
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++ /* Transfer multiple of 2 bytes */
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++ if (rw == READ)
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++ for (i = 0; i < words; i++)
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++ buf16[i] = readw(mmio);
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++ else
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++ for (i = 0; i < words; i++)
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++ writew(buf16[i], mmio);
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++
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++ /* Transfer trailing 1 byte, if any. */
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++ if (unlikely(buflen & 0x01)) {
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++ u16 align_buf[1] = { 0 };
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++ unsigned char *trailing_buf = buf + buflen - 1;
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++
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++ if (rw == READ) {
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++ align_buf[0] = readw(mmio);
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++ memcpy(trailing_buf, align_buf, 1);
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++ } else {
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++ memcpy(align_buf, trailing_buf, 1);
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++ writew(align_buf[0], mmio);
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++ }
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++ words++;
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++ }
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++
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++ return words << 1;
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++}
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++
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++static void magicbox_cf_irq_on(struct ata_port *ap)
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++{
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++ /* Nothing to do. */
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++}
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++
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++static void magicbox_cf_irq_clear(struct ata_port *ap)
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++{
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++ /* Nothing to do. */
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++}
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++
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++static struct ata_port_operations magicbox_cf_port_ops = {
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++ .inherits = &ata_sff_port_ops,
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++
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++ .cable_detect = ata_cable_40wire,
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++ .set_mode = magicbox_cf_set_mode,
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++
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++ .sff_exec_command = magicbox_cf_exec_command,
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++ .sff_check_status = magicbox_cf_check_status,
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++ .sff_check_altstatus = magicbox_cf_check_altstatus,
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++ .sff_dev_select = magicbox_cf_dev_select,
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++ .sff_tf_load = magicbox_cf_tf_load,
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++ .sff_tf_read = magicbox_cf_tf_read,
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++ .sff_data_xfer = magicbox_cf_data_xfer,
|
|
|
|
|
++
|
|
|
|
|
++ .sff_irq_on = magicbox_cf_irq_on,
|
|
|
|
|
++ .sff_irq_clear = magicbox_cf_irq_clear,
|
|
|
|
|
++
|
|
|
|
|
++ .port_start = ATA_OP_NULL,
|
|
|
|
|
++};
|
|
|
|
|
++
|
|
|
|
|
++static struct scsi_host_template magicbox_cf_sht = {
|
|
|
|
|
++ ATA_PIO_SHT(DRV_NAME),
|
|
|
|
|
++};
|
|
|
|
|
++
|
|
|
|
|
++static inline void magicbox_cf_setup_port(struct ata_host *host)
|
|
|
|
|
++{
|
|
|
|
|
++ struct magicbox_cf_info *info = host->private_data;
|
|
|
|
|
++ struct ata_port *ap;
|
|
|
|
|
++
|
|
|
|
|
++ ap = host->ports[0];
|
|
|
|
|
++
|
|
|
|
|
++ ap->ops = &magicbox_cf_port_ops;
|
|
|
|
|
++ ap->pio_mask = ATA_PIO4;
|
|
|
|
|
++ ap->flags |= ATA_FLAG_NO_ATAPI;
|
|
|
|
|
++
|
|
|
|
|
++ ap->ioaddr.cmd_addr = info->base + MAGICBOX_CF_REG_CMD;
|
|
|
|
|
++ ap->ioaddr.data_addr = info->base + MAGICBOX_CF_REG_DATA;
|
|
|
|
|
++ ap->ioaddr.error_addr = info->base + MAGICBOX_CF_REG_ERR;
|
|
|
|
|
++ ap->ioaddr.feature_addr = info->base + MAGICBOX_CF_REG_FEATURE;
|
|
|
|
|
++ ap->ioaddr.nsect_addr = info->base + MAGICBOX_CF_REG_NSECT;
|
|
|
|
|
++ ap->ioaddr.lbal_addr = info->base + MAGICBOX_CF_REG_LBAL;
|
|
|
|
|
++ ap->ioaddr.lbam_addr = info->base + MAGICBOX_CF_REG_LBAM;
|
|
|
|
|
++ ap->ioaddr.lbah_addr = info->base + MAGICBOX_CF_REG_LBAH;
|
|
|
|
|
++ ap->ioaddr.device_addr = info->base + MAGICBOX_CF_REG_DEVICE;
|
|
|
|
|
++ ap->ioaddr.status_addr = info->base + MAGICBOX_CF_REG_STATUS;
|
|
|
|
|
++ ap->ioaddr.command_addr = info->base + MAGICBOX_CF_REG_CMD;
|
|
|
|
|
++
|
|
|
|
|
++ ap->ioaddr.altstatus_addr = info->ctrl + MAGICBOX_CF_REG_ALTSTATUS;
|
|
|
|
|
++ ap->ioaddr.ctl_addr = info->ctrl + MAGICBOX_CF_REG_CTL;
|
|
|
|
|
++
|
|
|
|
|
++ ata_port_desc(ap, "cmd 0x%p ctl 0x%p", ap->ioaddr.cmd_addr,
|
|
|
|
|
++ ap->ioaddr.ctl_addr);
|
|
|
|
|
++}
|
|
|
|
|
++
|
|
|
|
|
++static int __devinit magicbox_cf_of_probe(struct platform_device *op)
|
|
|
|
|
++{
|
|
|
|
|
++ struct magicbox_cf_info *info;
|
|
|
|
|
++ struct ata_host *host;
|
|
|
|
|
++ int irq;
|
|
|
|
|
++ int ret = 0;
|
|
|
|
|
++
|
|
|
|
|
++ info = kzalloc(sizeof(struct magicbox_cf_info), GFP_KERNEL);
|
|
|
|
|
++ if (info == NULL) {
|
|
|
|
|
++ ret = -ENOMEM;
|
|
|
|
|
++ goto err_exit;
|
|
|
|
|
++ }
|
|
|
|
|
++
|
|
|
|
|
++ irq = irq_of_parse_and_map(op->dev.of_node, 0);
|
|
|
|
|
++ if (irq < 0) {
|
|
|
|
|
++ dev_err(&op->dev, "invalid irq\n");
|
|
|
|
|
++ ret = -EINVAL;
|
|
|
|
|
++ goto err_free_info;
|
|
|
|
|
++ }
|
|
|
|
|
++
|
|
|
|
|
++ info->base = of_iomap(op->dev.of_node, 0);
|
|
|
|
|
++ if (info->base == NULL) {
|
|
|
|
|
++ ret = -ENOMEM;
|
|
|
|
|
++ goto err_free_info;
|
|
|
|
|
++ }
|
|
|
|
|
++
|
|
|
|
|
++ info->ctrl = of_iomap(op->dev.of_node, 1);
|
|
|
|
|
++ if (info->ctrl == NULL) {
|
|
|
|
|
++ ret = -ENOMEM;
|
|
|
|
|
++ goto err_unmap_base;
|
|
|
|
|
++ }
|
|
|
|
|
++
|
|
|
|
|
++ host = ata_host_alloc(&op->dev, MAGICBOX_CF_MAXPORTS);
|
|
|
|
|
++ if (host == NULL) {
|
|
|
|
|
++ ret = -ENOMEM;
|
|
|
|
|
++ goto err_unmap_ctrl;
|
|
|
|
|
++ }
|
|
|
|
|
++
|
|
|
|
|
++ host->private_data = info;
|
|
|
|
|
++ magicbox_cf_setup_port(host);
|
|
|
|
|
++
|
|
|
|
|
++ ret = ata_host_activate(host, irq, ata_sff_interrupt,
|
|
|
|
|
++ IRQF_TRIGGER_RISING, &magicbox_cf_sht);
|
|
|
|
|
++ if (ret)
|
|
|
|
|
++ goto err_unmap_ctrl;
|
|
|
|
|
++
|
|
|
|
|
++ dev_set_drvdata(&op->dev, host);
|
|
|
|
|
++ return 0;
|
|
|
|
|
++
|
|
|
|
|
++ err_unmap_ctrl:
|
|
|
|
|
++ iounmap(info->ctrl);
|
|
|
|
|
++ err_unmap_base:
|
|
|
|
|
++ iounmap(info->base);
|
|
|
|
|
++ err_free_info:
|
|
|
|
|
++ kfree(info);
|
|
|
|
|
++ err_exit:
|
|
|
|
|
++ return ret;
|
|
|
|
|
++}
|
|
|
|
|
++
|
|
|
|
|
++static __devexit int magicbox_cf_of_remove(struct platform_device *op)
|
|
|
|
|
++{
|
|
|
|
|
++ struct ata_host *host = dev_get_drvdata(&op->dev);
|
|
|
|
|
++ struct magicbox_cf_info *info = host->private_data;
|
|
|
|
|
++
|
|
|
|
|
++ ata_host_detach(host);
|
|
|
|
|
++ iounmap(info->ctrl);
|
|
|
|
|
++ iounmap(info->base);
|
|
|
|
|
++ kfree(info);
|
|
|
|
|
++
|
|
|
|
|
++ return 0;
|
|
|
|
|
++}
|
|
|
|
|
++
|
|
|
|
|
++static struct of_device_id magicbox_cf_of_match[] = {
|
|
|
|
|
++ { .compatible = "pata-magicbox-cf", },
|
|
|
|
|
++ {},
|
|
|
|
|
++};
|
|
|
|
|
++
|
|
|
|
|
++static struct platform_driver magicbox_cf_of_platform_driver = {
|
|
|
|
|
++ .probe = magicbox_cf_of_probe,
|
|
|
|
|
++ .remove = __devexit_p(magicbox_cf_of_remove),
|
|
|
|
|
++ .driver = {
|
|
|
|
|
++ .name = DRV_NAME,
|
|
|
|
|
++ .owner = THIS_MODULE,
|
|
|
|
|
++ .of_match_table = magicbox_cf_of_match,
|
|
|
|
|
++ },
|
|
|
|
|
++};
|
|
|
|
|
++
|
|
|
|
|
++static int __init magicbox_cf_init(void)
|
|
|
|
|
++{
|
|
|
|
|
++ return platform_driver_register(&magicbox_cf_of_platform_driver);
|
|
|
|
|
++}
|
|
|
|
|
++
|
|
|
|
|
++static void __exit magicbox_cf_exit(void)
|
|
|
|
|
++{
|
|
|
|
|
++ platform_driver_unregister(&magicbox_cf_of_platform_driver);
|
|
|
|
|
++}
|
|
|
|
|
++
|
|
|
|
|
++module_init(magicbox_cf_init);
|
|
|
|
|
++module_exit(magicbox_cf_exit);
|
|
|
|
|
++
|
|
|
|
|
++MODULE_DESCRIPTION(DRV_DESC);
|
|
|
|
|
++MODULE_AUTHOR("Gabor Juhos <[email protected]>");
|
|
|
|
|
++MODULE_LICENSE("GPL v2");
|
|
|
|
|
++MODULE_VERSION(DRV_VERSION);
|
|
|
|
|
++MODULE_DEVICE_TABLE(of, magicbox_cf_of_match);
|