Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/ide/h8300/ide-h8300.c b/drivers/ide/h8300/ide-h8300.c
new file mode 100644
index 0000000..fb91cb8
--- /dev/null
+++ b/drivers/ide/h8300/ide-h8300.c
@@ -0,0 +1,119 @@
+/*
+ * drivers/ide/ide-h8300.c
+ * H8/300 generic IDE interface
+ */
+
+#include <linux/init.h>
+#include <linux/ide.h>
+#include <linux/config.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+
+#define bswap(d) \
+({ \
+ u16 r; \
+ __asm__("mov.b %w1,r1h\n\t" \
+ "mov.b %x1,r1l\n\t" \
+ "mov.w r1,%0" \
+ :"=r"(r) \
+ :"r"(d) \
+ :"er1"); \
+ (r); \
+})
+
+static void mm_outw(u16 d, unsigned long a)
+{
+ __asm__("mov.b %w0,r2h\n\t"
+ "mov.b %x0,r2l\n\t"
+ "mov.w r2,@%1"
+ :
+ :"r"(d),"r"(a)
+ :"er2");
+}
+
+static u16 mm_inw(unsigned long a)
+{
+ register u16 r __asm__("er0");
+ __asm__("mov.w @%1,r2\n\t"
+ "mov.b r2l,%x0\n\t"
+ "mov.b r2h,%w0"
+ :"=r"(r)
+ :"r"(a)
+ :"er2");
+ return r;
+}
+
+static void mm_outsw(unsigned long addr, void *buf, u32 len)
+{
+ unsigned short *bp = (unsigned short *)buf;
+ for (; len > 0; len--, bp++)
+ *(volatile u16 *)addr = bswap(*bp);
+}
+
+static void mm_insw(unsigned long addr, void *buf, u32 len)
+{
+ unsigned short *bp = (unsigned short *)buf;
+ for (; len > 0; len--, bp++)
+ *bp = bswap(*(volatile u16 *)addr);
+}
+
+#define H8300_IDE_GAP (2)
+
+static inline void hw_setup(hw_regs_t *hw)
+{
+ int i;
+
+ memset(hw, 0, sizeof(hw_regs_t));
+ for (i = 0; i <= IDE_STATUS_OFFSET; i++)
+ hw->io_ports[i] = CONFIG_H8300_IDE_BASE + H8300_IDE_GAP*i;
+ hw->io_ports[IDE_CONTROL_OFFSET] = CONFIG_H8300_IDE_ALT;
+ hw->irq = EXT_IRQ0 + CONFIG_H8300_IDE_IRQ;
+ hw->dma = NO_DMA;
+ hw->chipset = ide_generic;
+}
+
+static inline void hwif_setup(ide_hwif_t *hwif)
+{
+ default_hwif_iops(hwif);
+
+ hwif->mmio = 2;
+ hwif->OUTW = mm_outw;
+ hwif->OUTSW = mm_outsw;
+ hwif->INW = mm_inw;
+ hwif->INSW = mm_insw;
+ hwif->OUTL = NULL;
+ hwif->INL = NULL;
+ hwif->OUTSL = NULL;
+ hwif->INSL = NULL;
+}
+
+void __init h8300_ide_init(void)
+{
+ hw_regs_t hw;
+ ide_hwif_t *hwif;
+ int idx;
+
+ if (!request_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8, "ide-h8300"))
+ goto out_busy;
+ if (!request_region(CONFIG_H8300_IDE_ALT, H8300_IDE_GAP, "ide-h8300")) {
+ release_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8);
+ goto out_busy;
+ }
+
+ hw_setup(&hw);
+
+ /* register if */
+ idx = ide_register_hw(&hw, &hwif);
+ if (idx == -1) {
+ printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
+ return;
+ }
+
+ hwif_setup(hwif);
+ printk(KERN_INFO "ide%d: H8/300 generic IDE interface\n", idx);
+ return;
+
+out_busy:
+ printk(KERN_ERR "ide-h8300: IDE I/F resource already used.\n");
+}