diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/linux/magicbox/config-default | 2 | ||||
| -rw-r--r-- | target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c | 287 | ||||
| -rw-r--r-- | target/linux/magicbox/patches/100-cf_slot.patch | 25 |
3 files changed, 219 insertions, 95 deletions
diff --git a/target/linux/magicbox/config-default b/target/linux/magicbox/config-default index 186e259ce1..f0c1992b71 100644 --- a/target/linux/magicbox/config-default +++ b/target/linux/magicbox/config-default @@ -18,7 +18,7 @@ CONFIG_BITREVERSE=y CONFIG_BLK_DEV_IDE=m CONFIG_BLK_DEV_IDEDISK=m # CONFIG_BLK_DEV_IDEDMA is not set -# CONFIG_BLK_DEV_MAGICBOX_IDE is not set +CONFIG_BLK_DEV_MAGICBOX_IDE=m # CONFIG_BOOKE_WDT is not set CONFIG_BOOT_LOAD=0x00400000 CONFIG_BOUNCE=y diff --git a/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c b/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c index 2c15320931..0bc62f2dec 100644 --- a/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c +++ b/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c @@ -1,5 +1,8 @@ -/* Driver for MagicBox 2.0 onboard CompactFlash adapter. +/* + * Driver for MagicBox 2.0 onboard CompactFlash adapter. + * * Written by Wojtek Kaniewski <wojtekka@toxygen.net> + * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> * * GNU General Public License. */ @@ -14,24 +17,27 @@ #include <linux/delay.h> #include <linux/platform_device.h> +#define UIC0_PR 0xc4 +#define UIC0_TR 0xc5 +#define MAGICBOX_CF_IRQ 25 -#define UIC0_PR 0xc4 -#define UIC0_TR 0xc5 -#define IRQ 25 - -static int ide_offsets[IDE_NR_PORTS] = {0, 2, 4, 6, 8, 10, 12, 14, -1, -1}; +static u8 magicbox_ide_inb(unsigned long port) +{ + return (u8) (readw((void __iomem *) port) >> 8) & 0xff; +} -static u8 magicbox_ide_inb (unsigned long port) +static void magicbox_ide_outb(u8 value, unsigned long port) { - return (u8) (readw((void __iomem *) port) >> 8) & 255; + writew(value << 8, (void __iomem *) port); } -static u16 magicbox_ide_inw (unsigned long port) +static void magicbox_ide_outbsync(ide_drive_t *drive, u8 value, + unsigned long port) { - return (u16) readw((void __iomem *) port); + writew(value << 8, (void __iomem *) port); } -static void magicbox_ide_insw (unsigned long port, void *addr, u32 count) +static inline void magicbox_ide_insw(unsigned long port, void *addr, u32 count) { u16 *ptr; @@ -39,12 +45,7 @@ static void magicbox_ide_insw (unsigned long port, void *addr, u32 count) *ptr = readw((void __iomem *) port); } -static u32 magicbox_ide_inl (unsigned long port) -{ - return (u32) readl((void __iomem *) port); -} - -static void magicbox_ide_insl (unsigned long port, void *addr, u32 count) +static inline void magicbox_ide_insl(unsigned long port, void *addr, u32 count) { u32 *ptr; @@ -52,82 +53,229 @@ static void magicbox_ide_insl (unsigned long port, void *addr, u32 count) *ptr = readl((void __iomem *) port); } -static void magicbox_ide_outb (u8 value, unsigned long port) +static inline void magicbox_ide_outsw(unsigned long port, void *addr, + u32 count) { - writew(value << 8, (void __iomem *) port); + u16 *ptr; + + for (ptr = addr; count--; ptr++) + writew(*ptr, (void __iomem *) port); } -static void magicbox_ide_outbsync (ide_drive_t *drive, u8 value, unsigned long port) +static inline void magicbox_ide_outsl(unsigned long port, void *addr, + u32 count) { - writew(value << 8, (void __iomem *) port); + u32 *ptr; + + for (ptr = addr; count--; ptr++) + writel(*ptr, (void __iomem *) port); } -static void magicbox_ide_outw (u16 value, unsigned long port) +static void magicbox_ide_tf_load(ide_drive_t *drive, ide_task_t *task) { - writew(value, (void __iomem *) port); + struct ide_io_ports *io_ports = &drive->hwif->io_ports; + struct ide_taskfile *tf = &task->tf; + u8 HIHI = (task->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF; + + if (task->tf_flags & IDE_TFLAG_FLAGGED) + HIHI = 0xFF; + + ide_set_irq(drive, 1); + + if (task->tf_flags & IDE_TFLAG_OUT_DATA) + writel((tf->hob_data << 8) | tf->data, + (void __iomem *) io_ports->data_addr); + + if (task->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE) + magicbox_ide_outb(tf->hob_feature, io_ports->feature_addr); + if (task->tf_flags & IDE_TFLAG_OUT_HOB_NSECT) + magicbox_ide_outb(tf->hob_nsect, io_ports->nsect_addr); + if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAL) + magicbox_ide_outb(tf->hob_lbal, io_ports->lbal_addr); + if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAM) + magicbox_ide_outb(tf->hob_lbam, io_ports->lbam_addr); + if (task->tf_flags & IDE_TFLAG_OUT_HOB_LBAH) + magicbox_ide_outb(tf->hob_lbah, io_ports->lbah_addr); + + if (task->tf_flags & IDE_TFLAG_OUT_FEATURE) + magicbox_ide_outb(tf->feature, io_ports->feature_addr); + if (task->tf_flags & IDE_TFLAG_OUT_NSECT) + magicbox_ide_outb(tf->nsect, io_ports->nsect_addr); + if (task->tf_flags & IDE_TFLAG_OUT_LBAL) + magicbox_ide_outb(tf->lbal, io_ports->lbal_addr); + if (task->tf_flags & IDE_TFLAG_OUT_LBAM) + magicbox_ide_outb(tf->lbam, io_ports->lbam_addr); + if (task->tf_flags & IDE_TFLAG_OUT_LBAH) + magicbox_ide_outb(tf->lbah, io_ports->lbah_addr); + + if (task->tf_flags & IDE_TFLAG_OUT_DEVICE) + magicbox_ide_outb((tf->device & HIHI) | drive->select.all, + io_ports->device_addr); } -static void magicbox_ide_outsw (unsigned long port, void *addr, u32 count) +static void magicbox_ide_tf_read(ide_drive_t *drive, ide_task_t *task) { - u16 *ptr; + struct ide_io_ports *io_ports = &drive->hwif->io_ports; + struct ide_taskfile *tf = &task->tf; - for (ptr = addr; count--; ptr++) - writew(*ptr, (void __iomem *) port); + if (task->tf_flags & IDE_TFLAG_IN_DATA) { + u16 data = (u16) readl((void __iomem *) io_ports->data_addr); + + tf->data = data & 0xff; + tf->hob_data = (data >> 8) & 0xff; + } + + /* be sure we're looking at the low order bits */ + magicbox_ide_outb(drive->ctl & ~0x80, io_ports->ctl_addr); + + if (task->tf_flags & IDE_TFLAG_IN_NSECT) + tf->nsect = magicbox_ide_inb(io_ports->nsect_addr); + if (task->tf_flags & IDE_TFLAG_IN_LBAL) + tf->lbal = magicbox_ide_inb(io_ports->lbal_addr); + if (task->tf_flags & IDE_TFLAG_IN_LBAM) + tf->lbam = magicbox_ide_inb(io_ports->lbam_addr); + if (task->tf_flags & IDE_TFLAG_IN_LBAH) + tf->lbah = magicbox_ide_inb(io_ports->lbah_addr); + if (task->tf_flags & IDE_TFLAG_IN_DEVICE) + tf->device = magicbox_ide_inb(io_ports->device_addr); + + if (task->tf_flags & IDE_TFLAG_LBA48) { + magicbox_ide_outb(drive->ctl | 0x80, io_ports->ctl_addr); + + if (task->tf_flags & IDE_TFLAG_IN_HOB_FEATURE) + tf->hob_feature = magicbox_ide_inb(io_ports->feature_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_NSECT) + tf->hob_nsect = magicbox_ide_inb(io_ports->nsect_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAL) + tf->hob_lbal = magicbox_ide_inb(io_ports->lbal_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAM) + tf->hob_lbam = magicbox_ide_inb(io_ports->lbam_addr); + if (task->tf_flags & IDE_TFLAG_IN_HOB_LBAH) + tf->hob_lbah = magicbox_ide_inb(io_ports->lbah_addr); + } } -static void magicbox_ide_outl (u32 value, unsigned long port) +static void magicbox_ide_input_data(ide_drive_t *drive, struct request *rq, + void *buf, unsigned int len) { - writel(value, (void __iomem *) port); + 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_outsl (unsigned long port, void *addr, u32 count) +static void magicbox_ide_output_data(ide_drive_t *drive, struct request *rq, + void *buf, unsigned int len) { - u32 *ptr; + unsigned long port = drive->hwif->io_ports.data_addr; - for (ptr = addr; count--; ptr++) - writel(*ptr, (void __iomem *) port); + 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 __init magicbox_ide_setup_hw(hw_regs_t *hw, u16 __iomem *base, + u16 __iomem *ctrl, int irq) +{ + unsigned long port = (unsigned long) base; + int i; -static void __init ide_magicbox_register(unsigned long addr, - unsigned long caddr, int irq) + 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 __init magibox_ide_probe(void) { hw_regs_t hw; ide_hwif_t *hwif; + u16 __iomem *base; + u16 __iomem *ctrl; + u8 idx[4] = { 0xff, 0xff, 0xff, 0xff }; + int err; + + /* Remap physical address space */ + base = ioremap_nocache(0xff100000, 4096); + if (base == NULL) { + err = -EBUSY; + goto err_out; + } - memset(&hw, 0, sizeof(hw)); - ide_setup_ports(&hw, addr, ide_offsets, caddr + 12, 0, NULL,irq); - -#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22) - if (ide_register_hw(&hw, &hwif) != -1) -#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24) - if (ide_register_hw(&hw, 1, &hwif) != -1) -#else - if (ide_register_hw(&hw, NULL, 1, &hwif) != -1) -#endif - { - printk(KERN_NOTICE "magicbox-ide: Registered IDE-CF driver\n"); - hwif->mmio = 2; - hwif->drives[0].unmask = 1; - hwif->OUTB = magicbox_ide_outb; - hwif->OUTBSYNC = magicbox_ide_outbsync; - hwif->OUTW = magicbox_ide_outw; - hwif->OUTSW = magicbox_ide_outsw; - hwif->OUTSL = magicbox_ide_outsl; - hwif->INB = magicbox_ide_inb; - hwif->INW = magicbox_ide_inw; - hwif->INSW = magicbox_ide_insw; - hwif->INSL = magicbox_ide_insl; + ctrl = ioremap_nocache(0xff200000, 4096); + if (ctrl == NULL) { + err = -EBUSY; + goto err_unmap_base; } + + magicbox_ide_setup_hw(&hw, base, ctrl, MAGICBOX_CF_IRQ); + + hwif = ide_find_port(); + if (!hwif) { + err = -ENODEV; + goto err_unmap_ctrl; + } + + ide_init_port_data(hwif, hwif->index); + ide_init_port_hw(hwif, &hw); + + hwif->host_flags = IDE_HFLAG_MMIO; + + hwif->tf_load = magicbox_ide_tf_load; + hwif->tf_read = magicbox_ide_tf_read; + + hwif->input_data = magicbox_ide_input_data; + hwif->output_data = magicbox_ide_output_data; + + hwif->drives[0].unmask = 1; + hwif->OUTB = magicbox_ide_outb; + hwif->OUTBSYNC = magicbox_ide_outbsync; + hwif->INB = magicbox_ide_inb; + + printk(KERN_INFO "ide%d: Magicbox CF interface\n", hwif->index); + + idx[0] = hwif->index; + + ide_device_add(idx, NULL); + + return 0; + +err_unmap_ctrl: + iounmap(ctrl); +err_unmap_base: + iounmap(base); +err_out: + return err; } -void __init ide_magicbox_init(void) +static int __init magicbox_ide_init(void) { - volatile u16 *addr; - volatile u16 *caddr; - /* Turn on PerWE instead of PCIsomething */ - mtdcr(DCRN_CPC0_PCI_BASE, mfdcr(DCRN_CPC0_PCI_BASE) | (0x80000000L >> 27)); + mtdcr(DCRN_CPC0_PCI_BASE, + mfdcr(DCRN_CPC0_PCI_BASE) | (0x80000000L >> 27)); /* PerCS1 (CF's CS0): base 0xff100000, 16-bit, rw */ mtdcr(DCRN_EBC_BASE, 1); @@ -141,14 +289,13 @@ void __init ide_magicbox_init(void) mtdcr(DCRN_EBC_BASE, 0x12); mtdcr(DCRN_EBC_BASE + 1, 0x080bd800); - /* Remap physical address space */ - addr = ioremap_nocache(0xff100000, 4096); - caddr = ioremap_nocache(0xff200000, 4096); - /* Set interrupt to low-to-high-edge-triggered */ - mtdcr(UIC0_TR, mfdcr(UIC0_TR) & ~(0x80000000L >> IRQ)); - mtdcr(UIC0_PR, mfdcr(UIC0_PR) | (0x80000000L >> IRQ)); + mtdcr(UIC0_TR, mfdcr(UIC0_TR) & ~(0x80000000L >> MAGICBOX_CF_IRQ)); + mtdcr(UIC0_PR, mfdcr(UIC0_PR) | (0x80000000L >> MAGICBOX_CF_IRQ)); - ide_magicbox_register((unsigned long)addr, (unsigned long)caddr, IRQ); + return magibox_ide_probe(); } +module_init(magicbox_ide_init); + +MODULE_LICENSE("GPL"); diff --git a/target/linux/magicbox/patches/100-cf_slot.patch b/target/linux/magicbox/patches/100-cf_slot.patch index 79f567216f..f6304b7b6b 100644 --- a/target/linux/magicbox/patches/100-cf_slot.patch +++ b/target/linux/magicbox/patches/100-cf_slot.patch @@ -1,26 +1,3 @@ ---- a/drivers/ide/ide.c -+++ b/drivers/ide/ide.c -@@ -78,6 +78,10 @@ - /* default maximum number of failures */ - #define IDE_DEFAULT_MAX_FAILURES 1 - -+#ifdef CONFIG_BLK_DEV_MAGICBOX_IDE -+extern void __init ide_magicbox_init(void); -+#endif -+ - struct class *ide_port_class; - - static const u8 ide_hwif_to_major[] = { IDE0_MAJOR, IDE1_MAJOR, -@@ -494,6 +498,9 @@ - - return -EPERM; - #endif -+#ifdef CONFIG_BLK_DEV_MAGICBOX_IDE -+ ide_magicbox_init(); -+#endif - } - - int set_pio_mode(ide_drive_t *drive, int arg) --- a/drivers/ide/Kconfig +++ b/drivers/ide/Kconfig @@ -928,6 +928,14 @@ @@ -28,7 +5,7 @@ If unsure, say N. +config BLK_DEV_MAGICBOX_IDE -+ bool "MagicBox 2.0 CF IDE support" ++ tristate "MagicBox 2.0 CF IDE support" + depends on 4xx && IDE + help + This option provides support for IDE on MagicBox 2.0 boards. |