fix Magicbox for .21 and convert to the new structure

[openwrt/svn-archive/archive.git] / target / linux / magicbox-2.6 / files / drivers / ide / ppc / magicbox_ide.c

diff --git a/target/linux/magicbox-2.6/files/drivers/ide/ppc/magicbox_ide.c b/target/linux/magicbox-2.6/files/drivers/ide/ppc/magicbox_ide.c
new file mode 100644 (file)
index 0000000..d1f6d68
--- /dev/null
+++ b/target/linux/magicbox-2.6/files/drivers/ide/ppc/magicbox_ide.c
@@ -0,0 +1,147 @@
+/* Driver for MagicBox 2.0 onboard CompactFlash adapter.
+ * Written by Wojtek Kaniewski <wojtekka@toxygen.net>
+ *
+ * GNU General Public License.
+ */
+
+#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 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) & 255;
+}
+
+static u16 magicbox_ide_inw (unsigned long port)
+{
+       return (u16) readw((void __iomem *) port);
+}
+
+static void magicbox_ide_insw (unsigned long port, void *addr, u32 count)
+{
+       u16 *ptr;
+
+       for (ptr = addr; count--; ptr++)
+               *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)
+{
+       u32 *ptr;
+
+       for (ptr = addr; count--; ptr++)
+               *ptr = readl((void __iomem *) port);
+}
+
+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 void magicbox_ide_outw (u16 value, unsigned long port)
+{
+       writew(value, (void __iomem *) port);
+}
+
+static void magicbox_ide_outsw (unsigned long port, void *addr, u32 count)
+{
+       u16 *ptr;
+
+       for (ptr = addr; count--; ptr++)
+               writew(*ptr, (void __iomem *) port);
+}
+
+static void magicbox_ide_outl (u32 value, unsigned long port)
+{
+       writel(value, (void __iomem *) port);
+}
+
+static 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 __init ide_magicbox_register(unsigned long addr,
+                                        unsigned long caddr, int irq)
+{
+       hw_regs_t hw;
+       ide_hwif_t *hwif;
+
+       memset(&hw, 0, sizeof(hw));
+       ide_setup_ports(&hw, addr, ide_offsets, caddr + 12, 0, NULL,irq);
+
+       if (ide_register_hw(&hw, &hwif) != -1)
+       {
+               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;
+       }
+}
+
+void __init ide_magicbox_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));
+
+       /* 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);
+
+       /* 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));
+
+       ide_magicbox_register((unsigned long)addr, (unsigned long)caddr, IRQ);
+}
+