diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-mips/ide.h | 136 |
1 files changed, 92 insertions, 44 deletions
diff --git a/include/asm-mips/ide.h b/include/asm-mips/ide.h index c6e39ec26..10da72198 100644 --- a/include/asm-mips/ide.h +++ b/include/asm-mips/ide.h @@ -14,6 +14,7 @@ #ifdef __KERNEL__ #include <linux/config.h> +#include <asm/io.h> #ifndef MAX_HWIFS # ifdef CONFIG_BLK_DEV_IDEPCI @@ -89,13 +90,21 @@ static __inline__ void ide_init_default_hwifs(void) typedef union { unsigned all : 8; /* all of the bits together */ struct { +#ifdef __MIPSEB__ + unsigned bit7 : 1; /* always 1 */ + unsigned lba : 1; /* using LBA instead of CHS */ + unsigned bit5 : 1; /* always 1 */ + unsigned unit : 1; /* drive select number, 0 or 1 */ + unsigned head : 4; /* always zeros here */ +#else unsigned head : 4; /* always zeros here */ unsigned unit : 1; /* drive select number, 0 or 1 */ unsigned bit5 : 1; /* always 1 */ unsigned lba : 1; /* using LBA instead of CHS */ unsigned bit7 : 1; /* always 1 */ +#endif } b; - } select_t; +} select_t; static __inline__ int ide_request_irq(unsigned int irq, void (*handler)(int,void *, struct pt_regs *), unsigned long flags, const char *device, void *dev_id) @@ -125,57 +134,96 @@ static __inline__ void ide_release_region(ide_ioreg_t from, ide_ops->ide_release_region(from, extent); } +#undef SUPPORT_VLB_SYNC +#define SUPPORT_VLB_SYNC 0 + +#if defined(__MIPSEB__) + +#define T_CHAR (0x0000) /* char: don't touch */ +#define T_SHORT (0x4000) /* short: 12 -> 21 */ +#define T_INT (0x8000) /* int: 1234 -> 4321 */ +#define T_TEXT (0xc000) /* text: 12 -> 21 */ + +#define T_MASK_TYPE (0xc000) +#define T_MASK_COUNT (0x3fff) + +#define D_CHAR(cnt) (T_CHAR | (cnt)) +#define D_SHORT(cnt) (T_SHORT | (cnt)) +#define D_INT(cnt) (T_INT | (cnt)) +#define D_TEXT(cnt) (T_TEXT | (cnt)) + +static u_short driveid_types[] = { + D_SHORT(10), /* config - vendor2 */ + D_TEXT(20), /* serial_no */ + D_SHORT(3), /* buf_type - ecc_bytes */ + D_TEXT(48), /* fw_rev - model */ + D_CHAR(2), /* max_multsect - vendor3 */ + D_SHORT(1), /* dword_io */ + D_CHAR(2), /* vendor4 - capability */ + D_SHORT(1), /* reserved50 */ + D_CHAR(4), /* vendor5 - tDMA */ + D_SHORT(4), /* field_valid - cur_sectors */ + D_INT(1), /* cur_capacity */ + D_CHAR(2), /* multsect - multsect_valid */ + D_INT(1), /* lba_capacity */ + D_SHORT(194) /* dma_1word - reservedyy */ +}; -#if defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__) +#define num_driveid_types (sizeof(driveid_types)/sizeof(*driveid_types)) -#ifdef insl -#undef insl -#endif -#ifdef outsl -#undef outsl -#endif -#ifdef insw -#undef insw -#endif -#ifdef outsw -#undef outsw -#endif +static __inline__ void ide_fix_driveid(struct hd_driveid *id) +{ + u_char *p = (u_char *)id; + int i, j, cnt; + u_char t; + + for (i = 0; i < num_driveid_types; i++) { + cnt = driveid_types[i] & T_MASK_COUNT; + switch (driveid_types[i] & T_MASK_TYPE) { + case T_CHAR: + p += cnt; + break; + case T_SHORT: + for (j = 0; j < cnt; j++) { + t = p[0]; + p[0] = p[1]; + p[1] = t; + p += 2; + } + break; + case T_INT: + for (j = 0; j < cnt; j++) { + t = p[0]; + p[0] = p[3]; + p[3] = t; + t = p[1]; + p[1] = p[2]; + p[2] = t; + p += 4; + } + break; + case T_TEXT: + for (j = 0; j < cnt; j += 2) { + t = p[0]; + p[0] = p[1]; + p[1] = t; + p += 2; + } + break; + }; + } +} -#define insw(p,a,c) \ -do { \ - unsigned short *ptr = (unsigned short *)(a); \ - unsigned int i = (c); \ - while (i--) \ - *ptr++ = inw(p); \ -} while (0) -#define insl(p,a,c) \ -do { \ - unsigned long *ptr = (unsigned long *)(a); \ - unsigned int i = (c); \ - while (i--) \ - *ptr++ = inl(p); \ -} while (0) -#define outsw(p,a,c) \ -do { \ - unsigned short *ptr = (unsigned short *)(a); \ - unsigned int i = (c); \ - while (i--) \ - outw(*ptr++, (p)); \ -} while (0) -#define outsl(p,a,c) { \ - unsigned long *ptr = (unsigned long *)(a); \ - unsigned int i = (c); \ - while (i--) \ - outl(*ptr++, (p)); \ -} while (0) - -#endif /* defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__) */ +#else /* defined(CONFIG_SWAP_IO_SPACE) && defined(__MIPSEB__) */ + +#define ide_fix_driveid(id) do {} while (0) + +#endif /* * The following are not needed for the non-m68k ports */ #define ide_ack_intr(hwif) (1) -#define ide_fix_driveid(id) do {} while (0) #define ide_release_lock(lock) do {} while (0) #define ide_get_lock(lock, hdlr, data) do {} while (0) |