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
;
72 hw
->chipset
= ide_generic
;
75 static inline void hwif_setup(ide_hwif_t
*hwif
)
77 default_hwif_iops(hwif
);
81 hwif
->OUTSW
= mm_outsw
;
88 void __init
h8300_ide_init(void)
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 idx
= ide_register_hw(&hw
, 1, &hwif
);
106 printk(KERN_ERR
"ide-h8300: IDE I/F register failed\n");
111 printk(KERN_INFO
"ide%d: H8/300 generic IDE interface\n", idx
);
115 printk(KERN_ERR
"ide-h8300: IDE I/F resource already used.\n");