2 * drivers/ide/h8300/ide-h8300.c
3 * H8/300 generic IDE interface
6 #include <linux/init.h>
15 __asm__("mov.b %w1,r1h\n\t" \
24 static void mm_outw(u16 d, unsigned long a)
26 __asm__("mov.b %w0,r2h\n\t"
34 static u16 mm_inw(unsigned long a)
36 register u16 r __asm__("er0");
37 __asm__("mov.w @%1,r2\n\t"
46 static void mm_outsw(unsigned long addr, void *buf, u32 len)
48 unsigned short *bp = (unsigned short *)buf;
49 for (; len > 0; len--, bp++)
50 *(volatile u16 *)addr = bswap(*bp);
53 static void mm_insw(unsigned long addr, void *buf, u32 len)
55 unsigned short *bp = (unsigned short *)buf;
56 for (; len > 0; len--, bp++)
57 *bp = bswap(*(volatile u16 *)addr);
60 #define H8300_IDE_GAP (2)
62 static inline void hw_setup(hw_regs_t *hw)
66 memset(hw, 0, sizeof(hw_regs_t));
67 for (i = 0; i <= IDE_STATUS_OFFSET; i++)
68 hw->io_ports[i] = CONFIG_H8300_IDE_BASE + H8300_IDE_GAP*i;
69 hw->io_ports[IDE_CONTROL_OFFSET] = CONFIG_H8300_IDE_ALT;
70 hw->irq = EXT_IRQ0 + CONFIG_H8300_IDE_IRQ;
71 hw->chipset = ide_generic;
74 static inline void hwif_setup(ide_hwif_t *hwif)
76 default_hwif_iops(hwif);
80 hwif->OUTSW = mm_outsw;
87 static int __init h8300_ide_init(void)
92 u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
94 if (!request_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8, "ide-h8300"))
96 if (!request_region(CONFIG_H8300_IDE_ALT, H8300_IDE_GAP, "ide-h8300")) {
97 release_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8);
104 hwif = ide_find_port(hw.io_ports[IDE_DATA_OFFSET]);
106 printk(KERN_ERR "ide-h8300: IDE I/F register failed\n");
111 ide_init_port_data(hwif, index);
112 ide_init_port_hw(hwif, &hw);
114 printk(KERN_INFO "ide%d: H8/300 generic IDE interface\n", index);
123 printk(KERN_ERR "ide-h8300: IDE I/F resource already used.\n");
128 module_init(h8300_ide_init);