diff options
Diffstat (limited to 'target/linux/ppc40x/patches/100-magicbox-ide-driver.patch')
| -rw-r--r-- | target/linux/ppc40x/patches/100-magicbox-ide-driver.patch | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/target/linux/ppc40x/patches/100-magicbox-ide-driver.patch b/target/linux/ppc40x/patches/100-magicbox-ide-driver.patch new file mode 100644 index 000000000..d6907f982 --- /dev/null +++ b/target/linux/ppc40x/patches/100-magicbox-ide-driver.patch @@ -0,0 +1,320 @@ +--- a/drivers/ide/Kconfig ++++ b/drivers/ide/Kconfig +@@ -717,6 +717,11 @@ config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA + depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX + endchoice + ++config BLK_DEV_IDE_MAGICBOX ++ tristate "Magicbox CF card support" ++ depends on MAGICBOX || OPENRB_LIGHT ++ select IDE_XFER_MODE ++ + config BLK_DEV_IDE_TX4938 + tristate "TX4938 internal IDE support" + depends on SOC_TX4938 +--- a/drivers/ide/Makefile ++++ b/drivers/ide/Makefile +@@ -113,6 +113,7 @@ obj-$(CONFIG_BLK_DEV_IDE_RAPIDE) += rapi + obj-$(CONFIG_BLK_DEV_PALMCHIP_BK3710) += palm_bk3710.o + + obj-$(CONFIG_BLK_DEV_IDE_AU1XXX) += au1xxx-ide.o ++obj-$(CONFIG_BLK_DEV_IDE_MAGICBOX) += magicbox_ide.o + + obj-$(CONFIG_BLK_DEV_IDE_TX4938) += tx4938ide.o + obj-$(CONFIG_BLK_DEV_IDE_TX4939) += tx4939ide.o +--- /dev/null ++++ b/drivers/ide/magicbox_ide.c +@@ -0,0 +1,293 @@ ++/* ++ * IDE driver for the MagicBox 2.0 onboard CompactFlash slot. ++ * ++ * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * Based on the original driver by Wojtek Kaniewski <wojtekka@toxygen.net> ++ * ++ * 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/types.h> ++#include <linux/ioport.h> ++#include <linux/of.h> ++#include <linux/of_device.h> ++#include <linux/of_platform.h> ++#include <linux/ide.h> ++ ++#define DRV_DESC "IDE driver for Magicbox 2.0 onboard CF slot" ++#define DRV_NAME "magicbox_cf" ++ ++static inline u8 magicbox_ide_inb(unsigned long port) ++{ ++ return (u8) (readw((void __iomem *) port) >> 8) & 0xff; ++} ++ ++static inline void magicbox_ide_outb(u8 value, unsigned long port) ++{ ++ writew(value << 8, (void __iomem *) port); ++} ++ ++static inline void magicbox_ide_insw(unsigned long port, void *addr, u32 count) ++{ ++ u16 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ *ptr = readw((void __iomem *) port); ++} ++ ++static inline void magicbox_ide_insl(unsigned long port, void *addr, u32 count) ++{ ++ u32 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ *ptr = readl((void __iomem *) port); ++} ++ ++static inline void magicbox_ide_outsw(unsigned long port, void *addr, ++ u32 count) ++{ ++ u16 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ writew(*ptr, (void __iomem *) port); ++} ++ ++static inline void magicbox_ide_outsl(unsigned long port, void *addr, ++ u32 count) ++{ ++ u32 *ptr; ++ ++ for (ptr = addr; count--; ptr++) ++ writel(*ptr, (void __iomem *) port); ++} ++ ++static void magicbox_ide_exec_command(ide_hwif_t *hwif, u8 cmd) ++{ ++ magicbox_ide_outb(cmd, hwif->io_ports.command_addr); ++} ++ ++static u8 magicbox_ide_read_status(ide_hwif_t *hwif) ++{ ++ return magicbox_ide_inb(hwif->io_ports.status_addr); ++} ++ ++static u8 magicbox_ide_read_altstatus(ide_hwif_t *hwif) ++{ ++ return magicbox_ide_inb(hwif->io_ports.ctl_addr); ++} ++ ++static void magicbox_ide_write_devctl(ide_hwif_t *hwif, u8 ctl) ++{ ++ magicbox_ide_outb(ctl, hwif->io_ports.ctl_addr); ++} ++ ++static void magicbox_ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, ++ u8 valid) ++{ ++ struct ide_io_ports *io_ports = &drive->hwif->io_ports; ++ ++ if (valid & IDE_VALID_FEATURE) ++ magicbox_ide_outb(tf->feature, io_ports->feature_addr); ++ if (valid & IDE_VALID_NSECT) ++ magicbox_ide_outb(tf->nsect, io_ports->nsect_addr); ++ if (valid & IDE_VALID_LBAL) ++ magicbox_ide_outb(tf->lbal, io_ports->lbal_addr); ++ if (valid & IDE_VALID_LBAM) ++ magicbox_ide_outb(tf->lbam, io_ports->lbam_addr); ++ if (valid & IDE_VALID_LBAH) ++ magicbox_ide_outb(tf->lbah, io_ports->lbah_addr); ++ ++ if (valid & IDE_VALID_DEVICE) ++ magicbox_ide_outb(tf->device, io_ports->device_addr); ++} ++ ++static void magicbox_ide_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, ++ u8 valid) ++{ ++ struct ide_io_ports *io_ports = &drive->hwif->io_ports; ++ ++ if (valid & IDE_VALID_NSECT) ++ tf->nsect = magicbox_ide_inb(io_ports->nsect_addr); ++ if (valid & IDE_VALID_LBAL) ++ tf->lbal = magicbox_ide_inb(io_ports->lbal_addr); ++ if (valid & IDE_VALID_LBAM) ++ tf->lbam = magicbox_ide_inb(io_ports->lbam_addr); ++ if (valid & IDE_VALID_LBAH) ++ tf->lbah = magicbox_ide_inb(io_ports->lbah_addr); ++ if (valid & IDE_VALID_DEVICE) ++ tf->device = magicbox_ide_inb(io_ports->device_addr); ++} ++ ++static void magicbox_ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, ++ void *buf, unsigned int len) ++{ ++ unsigned long port = drive->hwif->io_ports.data_addr; ++ ++ len++; ++ ++ if (drive->io_32bit) { ++ magicbox_ide_insl(port, buf, len / 4); ++ ++ if ((len & 3) >= 2) ++ magicbox_ide_insw(port, (u8 *)buf + (len & ~3), 1); ++ } else { ++ magicbox_ide_insw(port, buf, len / 2); ++ } ++} ++ ++static void magicbox_ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, ++ void *buf, unsigned int len) ++{ ++ unsigned long port = drive->hwif->io_ports.data_addr; ++ ++ len++; ++ ++ if (drive->io_32bit) { ++ magicbox_ide_outsl(port, buf, len / 4); ++ ++ if ((len & 3) >= 2) ++ magicbox_ide_outsw(port, (u8 *)buf + (len & ~3), 1); ++ } else { ++ magicbox_ide_outsw(port, buf, len / 2); ++ } ++} ++ ++static void magicbox_ide_set_pio_mode(ide_drive_t *drive, const u8 pio) ++{ ++} ++ ++static u8 magicbox_ide_cable_detect(ide_hwif_t *hwif) ++{ ++ return ATA_CBL_PATA40; ++} ++ ++static const struct ide_tp_ops magicbox_ide_tp_ops = { ++ .exec_command = magicbox_ide_exec_command, ++ .read_status = magicbox_ide_read_status, ++ .read_altstatus = magicbox_ide_read_altstatus, ++ .write_devctl = magicbox_ide_write_devctl, ++ ++ .dev_select = ide_dev_select, ++ .tf_load = magicbox_ide_tf_load, ++ .tf_read = magicbox_ide_tf_read, ++ ++ .input_data = magicbox_ide_input_data, ++ .output_data = magicbox_ide_output_data, ++}; ++ ++static const struct ide_port_ops magicbox_ide_port_ops = { ++ .set_pio_mode = magicbox_ide_set_pio_mode, ++ .cable_detect = magicbox_ide_cable_detect, ++}; ++ ++static const struct ide_port_info magicbox_ide_port_info = { ++ .name = DRV_NAME, ++ .chipset = ide_generic, ++ .tp_ops = &magicbox_ide_tp_ops, ++ .port_ops = &magicbox_ide_port_ops, ++ .host_flags = IDE_HFLAG_SINGLE | ++ IDE_HFLAG_NO_DMA | ++ IDE_HFLAG_MMIO | ++ IDE_HFLAG_UNMASK_IRQS, ++ .pio_mask = ATA_PIO4, ++}; ++ ++static inline void magicbox_ide_setup_hw(hw_regs_t *hw, u16 __iomem *base, ++ u16 __iomem *ctrl, int irq) ++{ ++ unsigned long port = (unsigned long) base; ++ int i; ++ ++ memset(hw, 0, sizeof(*hw)); ++ for (i = 0; i <= 7; i++) ++ hw->io_ports_array[i] = port + i * 2; ++ ++ /* ++ * the IDE control register is at ATA address 6, ++ * with CS1 active instead of CS0 ++ */ ++ hw->io_ports.ctl_addr = (unsigned long)ctrl + (6 * 2); ++ hw->irq = irq; ++ hw->chipset = ide_generic; ++ hw->ack_intr = NULL; ++} ++ ++static int __devinit magicbox_ide_of_probe(struct of_device *op, ++ const struct of_device_id *match) ++{ ++ hw_regs_t hw; ++ hw_regs_t *hws[] = { &hw, NULL, NULL, NULL }; ++ struct ide_host *host; ++ u16 __iomem *base; ++ u16 __iomem *ctrl; ++ int irq; ++ int ret = 0; ++ ++ irq = irq_of_parse_and_map(op->node, 0); ++ if (irq < 0) { ++ dev_err(&op->dev, "invalid irq\n"); ++ ret = -EINVAL; ++ goto err_exit; ++ } ++ ++ base = of_iomap(op->node, 0); ++ if (base == NULL) { ++ ret = -ENOMEM; ++ goto err_exit; ++ } ++ ++ ctrl = of_iomap(op->node, 1); ++ if (ctrl == NULL) { ++ ret = -ENOMEM; ++ goto err_unmap_base; ++ } ++ ++ hw.dev = &op->dev; ++ magicbox_ide_setup_hw(&hw, base, ctrl, irq); ++ ++ ret = ide_host_add(&magicbox_ide_port_info, hws, &host); ++ if (ret) ++ goto err_unmap_ctrl; ++ ++ dev_set_drvdata(&op->dev, host); ++ ++ return 0; ++ ++ err_unmap_ctrl: ++ iounmap(ctrl); ++ err_unmap_base: ++ iounmap(base); ++ err_exit: ++ return ret; ++} ++ ++static struct of_device_id magicbox_ide_of_match[] = { ++ { .compatible = "magicbox-cf", }, ++ {}, ++}; ++ ++static struct of_platform_driver magicbox_ide_of_platform_driver = { ++ .owner = THIS_MODULE, ++ .name = DRV_NAME, ++ .match_table = magicbox_ide_of_match, ++ .probe = magicbox_ide_of_probe, ++ .driver = { ++ .name = DRV_NAME, ++ .owner = THIS_MODULE, ++ }, ++}; ++ ++static int __init magicbox_ide_init(void) ++{ ++ return of_register_platform_driver(&magicbox_ide_of_platform_driver); ++} ++ ++module_init(magicbox_ide_init); ++ ++MODULE_DESCRIPTION(DRV_DESC); ++MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); ++MODULE_LICENSE("GPL v2"); ++MODULE_DEVICE_TABLE(of, magicbox_ide_of_match); 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