aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c
diff options
context:
space:
mode:
Diffstat (limited to 'target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c')
-rw-r--r--target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c301
1 files changed, 0 insertions, 301 deletions
diff --git a/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c b/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c
deleted file mode 100644
index 0bc62f2dec..0000000000
--- a/target/linux/magicbox/files/drivers/ide/ppc/magicbox_ide.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * 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.
- */
-
-#include <linux/version.h>
-#include <linux/types.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/blkdev.h>
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-
-#define UIC0_PR 0xc4
-#define UIC0_TR 0xc5
-#define MAGICBOX_CF_IRQ 25
-
-static u8 magicbox_ide_inb(unsigned long port)
-{
- return (u8) (readw((void __iomem *) port) >> 8) & 0xff;
-}
-
-static void magicbox_ide_outb(u8 value, unsigned long port)
-{
- writew(value << 8, (void __iomem *) port);
-}
-
-static void magicbox_ide_outbsync(ide_drive_t *drive, 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_tf_load(ide_drive_t *drive, ide_task_t *task)
-{
- 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_tf_read(ide_drive_t *drive, ide_task_t *task)
-{
- struct ide_io_ports *io_ports = &drive->hwif->io_ports;
- struct ide_taskfile *tf = &task->tf;
-
- 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_input_data(ide_drive_t *drive, struct request *rq,
- 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 request *rq,
- 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 __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;
-
- 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;
- }
-
- 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;
-}
-
-static int __init magicbox_ide_init(void)
-{
- /* Turn on PerWE instead of PCIsomething */
- 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);
- mtdcr(DCRN_EBC_BASE + 1, 0xff11a000);
- mtdcr(DCRN_EBC_BASE, 0x11);
- mtdcr(DCRN_EBC_BASE + 1, 0x080bd800);
-
- /* PerCS2 (CF's CS1): base 0xff200000, 16-bit, rw */
- mtdcr(DCRN_EBC_BASE, 2);
- mtdcr(DCRN_EBC_BASE + 1, 0xff21a000);
- mtdcr(DCRN_EBC_BASE, 0x12);
- mtdcr(DCRN_EBC_BASE + 1, 0x080bd800);
-
- /* Set interrupt to low-to-high-edge-triggered */
- mtdcr(UIC0_TR, mfdcr(UIC0_TR) & ~(0x80000000L >> MAGICBOX_CF_IRQ));
- mtdcr(UIC0_PR, mfdcr(UIC0_PR) | (0x80000000L >> MAGICBOX_CF_IRQ));
-
- return magibox_ide_probe();
-}
-
-module_init(magicbox_ide_init);
-
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-07 05:17:51 +0000