diff options
| -rw-r--r-- | cpu/pxa/mmc.c | 499 | ||||
| -rw-r--r-- | include/asm-arm/arch-pxa/mmc.h | 79 | ||||
| -rw-r--r-- | include/part.h | 1 |
3 files changed, 380 insertions, 199 deletions
diff --git a/cpu/pxa/mmc.c b/cpu/pxa/mmc.c index d76e0cdfe..c0cfe65fb 100644 --- a/cpu/pxa/mmc.c +++ b/cpu/pxa/mmc.c @@ -30,14 +30,13 @@ #ifdef CONFIG_MMC -extern int -fat_register_device(block_dev_desc_t *dev_desc, int part_no); +extern int fat_register_device(block_dev_desc_t * dev_desc, int part_no); static block_dev_desc_t mmc_dev; -block_dev_desc_t * mmc_get_dev(int dev) +block_dev_desc_t *mmc_get_dev(int dev) { - return (dev == 0) ? &mmc_dev : NULL; + return ((block_dev_desc_t *) & mmc_dev); } /* @@ -45,72 +44,59 @@ block_dev_desc_t * mmc_get_dev(int dev) * and other parameters */ static uchar mmc_buf[MMC_BLOCK_SIZE]; -static mmc_csd_t mmc_csd; +static uchar spec_ver; static int mmc_ready = 0; +static int wide = 0; - -static uchar * +static uint32_t * /****************************************************/ mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort cmdat) /****************************************************/ { - static uchar resp[20]; + static uint32_t resp[4], a, b, c; ulong status; - int words, i; + int i; - debug("mmc_cmd %x %x %x %x\n", cmd, argh, argl, cmdat); + debug("mmc_cmd %u 0x%04x 0x%04x 0x%04x\n", cmd, argh, argl, + cmdat | wide); MMC_STRPCL = MMC_STRPCL_STOP_CLK; MMC_I_MASK = ~MMC_I_MASK_CLK_IS_OFF; - while (!(MMC_I_REG & MMC_I_REG_CLK_IS_OFF)); - MMC_CMD = cmd; - MMC_ARGH = argh; - MMC_ARGL = argl; - MMC_CMDAT = cmdat; + while (!(MMC_I_REG & MMC_I_REG_CLK_IS_OFF)) ; + MMC_CMD = cmd; + MMC_ARGH = argh; + MMC_ARGL = argl; + MMC_CMDAT = cmdat | wide; MMC_I_MASK = ~MMC_I_MASK_END_CMD_RES; MMC_STRPCL = MMC_STRPCL_START_CLK; - while (!(MMC_I_REG & MMC_I_REG_END_CMD_RES)); + while (!(MMC_I_REG & MMC_I_REG_END_CMD_RES)) ; status = MMC_STAT; - debug("MMC status %x\n", status); + debug("MMC status 0x%08x\n", status); if (status & MMC_STAT_TIME_OUT_RESPONSE) { return 0; } - switch (cmdat & 0x3) { - case MMC_CMDAT_R1: - case MMC_CMDAT_R3: - words = 3; - break; - - case MMC_CMDAT_R2: - words = 8; - break; - - default: - return 0; + /* Linux says: + * Did I mention this is Sick. We always need to + * discard the upper 8 bits of the first 16-bit word. + */ + a = (MMC_RES & 0xffff); + for (i = 0; i < 4; i++) { + b = (MMC_RES & 0xffff); + c = (MMC_RES & 0xffff); + resp[i] = (a << 24) | (b << 8) | (c >> 8); + a = c; + debug("MMC resp[%d] = %#08x\n", i, resp[i]); } - for (i = words-1; i >= 0; i--) { - ulong res_fifo = MMC_RES; - int offset = i << 1; - resp[offset] = ((uchar *)&res_fifo)[0]; - resp[offset+1] = ((uchar *)&res_fifo)[1]; - } -#ifdef MMC_DEBUG - for (i=0; i<words*2; i += 2) { - printf("MMC resp[%d] = %02x\n", i, resp[i]); - printf("MMC resp[%d] = %02x\n", i+1, resp[i+1]); - } -#endif return resp; } int /****************************************************/ -mmc_block_read(uchar *dst, ulong src, ulong len) +mmc_block_read(uchar * dst, ulong src, ulong len) /****************************************************/ { - uchar *resp; ushort argh, argl; ulong status; @@ -118,13 +104,13 @@ mmc_block_read(uchar *dst, ulong src, ulong len) return 0; } - debug("mmc_block_rd dst %lx src %lx len %d\n", (ulong)dst, src, len); + debug("mmc_block_rd dst %lx src %lx len %d\n", (ulong) dst, src, len); argh = len >> 16; argl = len & 0xffff; /* set block len */ - resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1); + mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1); /* send read command */ argh = src >> 16; @@ -133,17 +119,17 @@ mmc_block_read(uchar *dst, ulong src, ulong len) MMC_RDTO = 0xffff; MMC_NOB = 1; MMC_BLKLEN = len; - resp = mmc_cmd(MMC_CMD_READ_BLOCK, argh, argl, - MMC_CMDAT_R1|MMC_CMDAT_READ|MMC_CMDAT_BLOCK|MMC_CMDAT_DATA_EN); - + mmc_cmd(MMC_CMD_READ_BLOCK, argh, argl, + MMC_CMDAT_R1 | MMC_CMDAT_READ | MMC_CMDAT_BLOCK | + MMC_CMDAT_DATA_EN); MMC_I_MASK = ~MMC_I_MASK_RXFIFO_RD_REQ; while (len) { if (MMC_I_REG & MMC_I_REG_RXFIFO_RD_REQ) { #ifdef CONFIG_PXA27X int i; - for (i=min(len,32); i; i--) { - *dst++ = * ((volatile uchar *) &MMC_RXFIFO); + for (i = min(len, 32); i; i--) { + *dst++ = *((volatile uchar *)&MMC_RXFIFO); len--; } #else @@ -158,7 +144,7 @@ mmc_block_read(uchar *dst, ulong src, ulong len) } } MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE; - while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)); + while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)) ; status = MMC_STAT; if (status & MMC_STAT_ERRORS) { printf("MMC_STAT error %lx\n", status); @@ -169,10 +155,9 @@ mmc_block_read(uchar *dst, ulong src, ulong len) int /****************************************************/ -mmc_block_write(ulong dst, uchar *src, int len) +mmc_block_write(ulong dst, uchar * src, int len) /****************************************************/ { - uchar *resp; ushort argh, argl; ulong status; @@ -180,13 +165,13 @@ mmc_block_write(ulong dst, uchar *src, int len) return 0; } - debug("mmc_block_wr dst %lx src %lx len %d\n", dst, (ulong)src, len); + debug("mmc_block_wr dst %lx src %lx len %d\n", dst, (ulong) src, len); argh = len >> 16; argl = len & 0xffff; /* set block len */ - resp = mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1); + mmc_cmd(MMC_CMD_SET_BLOCKLEN, argh, argl, MMC_CMDAT_R1); /* send write command */ argh = dst >> 16; @@ -194,15 +179,16 @@ mmc_block_write(ulong dst, uchar *src, int len) MMC_STRPCL = MMC_STRPCL_STOP_CLK; MMC_NOB = 1; MMC_BLKLEN = len; - resp = mmc_cmd(MMC_CMD_WRITE_BLOCK, argh, argl, - MMC_CMDAT_R1|MMC_CMDAT_WRITE|MMC_CMDAT_BLOCK|MMC_CMDAT_DATA_EN); + mmc_cmd(MMC_CMD_WRITE_BLOCK, argh, argl, + MMC_CMDAT_R1 | MMC_CMDAT_WRITE | MMC_CMDAT_BLOCK | + MMC_CMDAT_DATA_EN); MMC_I_MASK = ~MMC_I_MASK_TXFIFO_WR_REQ; while (len) { if (MMC_I_REG & MMC_I_REG_TXFIFO_WR_REQ) { - int i, bytes = min(32,len); + int i, bytes = min(32, len); - for (i=0; i<bytes; i++) { + for (i = 0; i < bytes; i++) { MMC_TXFIFO = *src++; } if (bytes < 32) { @@ -217,9 +203,9 @@ mmc_block_write(ulong dst, uchar *src, int len) } } MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE; - while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)); + while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)) ; MMC_I_MASK = ~MMC_I_MASK_PRG_DONE; - while (!(MMC_I_REG & MMC_I_REG_PRG_DONE)); + while (!(MMC_I_REG & MMC_I_REG_PRG_DONE)) ; status = MMC_STAT; if (status & MMC_STAT_ERRORS) { printf("MMC_STAT error %lx\n", status); @@ -228,10 +214,9 @@ mmc_block_write(ulong dst, uchar *src, int len) return 0; } - int /****************************************************/ -mmc_read(ulong src, uchar *dst, int size) +mmc_read(ulong src, uchar * dst, int size) /****************************************************/ { ulong end, part_start, part_end, part_len, aligned_start, aligned_end; @@ -257,33 +242,46 @@ mmc_read(ulong src, uchar *dst, int size) aligned_end = mmc_block_address & end; /* all block aligned accesses */ - debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); if (part_start) { part_len = mmc_block_size - part_start; - debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); - if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0) { + debug + ("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); + if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < + 0) { return -1; } - memcpy(dst, mmc_buf+part_start, part_len); + memcpy(dst, mmc_buf + part_start, part_len); dst += part_len; src += part_len; } - debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); for (; src < aligned_end; src += mmc_block_size, dst += mmc_block_size) { - debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); - if ((mmc_block_read((uchar *)(dst), src, mmc_block_size)) < 0) { + debug + ("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); + if ((mmc_block_read((uchar *) (dst), src, mmc_block_size)) < 0) { return -1; } } - debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); if (part_end && src < end) { - debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) { return -1; } @@ -294,7 +292,7 @@ mmc_read(ulong src, uchar *dst, int size) int /****************************************************/ -mmc_write(uchar *src, ulong dst, int size) +mmc_write(uchar * src, ulong dst, int size) /****************************************************/ { ulong end, part_start, part_end, part_len, aligned_start, aligned_end; @@ -320,36 +318,50 @@ mmc_write(uchar *src, ulong dst, int size) aligned_end = mmc_block_address & end; /* all block aligned accesses */ - debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); if (part_start) { part_len = mmc_block_size - part_start; - debug("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - (ulong)src, dst, end, part_start, part_end, aligned_start, aligned_end); - if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < 0) { + debug + ("ps src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + (ulong) src, dst, end, part_start, part_end, aligned_start, + aligned_end); + if ((mmc_block_read(mmc_buf, aligned_start, mmc_block_size)) < + 0) { return -1; } - memcpy(mmc_buf+part_start, src, part_len); - if ((mmc_block_write(aligned_start, mmc_buf, mmc_block_size)) < 0) { + memcpy(mmc_buf + part_start, src, part_len); + if ((mmc_block_write(aligned_start, mmc_buf, mmc_block_size)) < + 0) { return -1; } dst += part_len; src += part_len; } - debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); for (; dst < aligned_end; src += mmc_block_size, dst += mmc_block_size) { - debug("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); - if ((mmc_block_write(dst, (uchar *)src, mmc_block_size)) < 0) { + debug + ("al src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); + if ((mmc_block_write(dst, (uchar *) src, mmc_block_size)) < 0) { return -1; } } - debug("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); if (part_end && dst < end) { - debug("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", - src, (ulong)dst, end, part_start, part_end, aligned_start, aligned_end); + debug + ("pe src %lx dst %lx end %lx pstart %lx pend %lx astart %lx aend %lx\n", + src, (ulong) dst, end, part_start, part_end, aligned_start, + aligned_end); if ((mmc_block_read(mmc_buf, aligned_end, mmc_block_size)) < 0) { return -1; } @@ -363,127 +375,288 @@ mmc_write(uchar *src, ulong dst, int size) ulong /****************************************************/ -mmc_bread(int dev_num, ulong blknr, ulong blkcnt, void *dst) +mmc_bread(int dev_num, ulong blknr, ulong blkcnt, ulong * dst) /****************************************************/ { int mmc_block_size = MMC_BLOCK_SIZE; ulong src = blknr * mmc_block_size + CFG_MMC_BASE; - mmc_read(src, (uchar *)dst, blkcnt*mmc_block_size); + mmc_read(src, (uchar *) dst, blkcnt * mmc_block_size); return blkcnt; } +#ifdef __GNUC__ +#define likely(x) __builtin_expect(!!(x), 1) +#define unlikely(x) __builtin_expect(!!(x), 0) +#else +#define likely(x) (x) +#define unlikely(x) (x) +#endif + +#define UNSTUFF_BITS(resp,start,size) \ + ({ \ + const int __size = size; \ + const uint32_t __mask = (__size < 32 ? 1 << __size : 0) - 1; \ + const int32_t __off = 3 - ((start) / 32); \ + const int32_t __shft = (start) & 31; \ + uint32_t __res; \ + \ + __res = resp[__off] >> __shft; \ + if (__size + __shft > 32) \ + __res |= resp[__off-1] << ((32 - __shft) % 32); \ + __res & __mask; \ + }) + +/* + * Given the decoded CSD structure, decode the raw CID to our CID structure. + */ +static void mmc_decode_cid(uint32_t * resp) +{ + if (IF_TYPE_SD == mmc_dev.if_type) { + /* + * SD doesn't currently have a version field so we will + * have to assume we can parse this. + */ + sprintf((char *)mmc_dev.vendor, + "Man %02x OEM %c%c \"%c%c%c%c%c\" Date %02u/%04u", + UNSTUFF_BITS(resp, 120, 8), UNSTUFF_BITS(resp, 112, 8), + UNSTUFF_BITS(resp, 104, 8), UNSTUFF_BITS(resp, 96, 8), + UNSTUFF_BITS(resp, 88, 8), UNSTUFF_BITS(resp, 80, 8), + UNSTUFF_BITS(resp, 72, 8), UNSTUFF_BITS(resp, 64, 8), + UNSTUFF_BITS(resp, 8, 4), UNSTUFF_BITS(resp, 12, + 8) + 2000); + sprintf((char *)mmc_dev.revision, "%d.%d", + UNSTUFF_BITS(resp, 60, 4), UNSTUFF_BITS(resp, 56, 4)); + sprintf((char *)mmc_dev.product, "%u", + UNSTUFF_BITS(resp, 24, 32)); + } else { + /* + * The selection of the format here is based upon published + * specs from sandisk and from what people have reported. + */ + switch (spec_ver) { + case 0: /* MMC v1.0 - v1.2 */ + case 1: /* MMC v1.4 */ + sprintf((char *)mmc_dev.vendor, + "Man %02x%02x%02x \"%c%c%c%c%c%c%c\" Date %02u/%04u", + UNSTUFF_BITS(resp, 120, 8), UNSTUFF_BITS(resp, + 112, + 8), + UNSTUFF_BITS(resp, 104, 8), UNSTUFF_BITS(resp, + 96, 8), + UNSTUFF_BITS(resp, 88, 8), UNSTUFF_BITS(resp, + 80, 8), + UNSTUFF_BITS(resp, 72, 8), UNSTUFF_BITS(resp, + 64, 8), + UNSTUFF_BITS(resp, 56, 8), UNSTUFF_BITS(resp, + 48, 8), + UNSTUFF_BITS(resp, 12, 4), UNSTUFF_BITS(resp, 8, + 4) + + 1997); + sprintf((char *)mmc_dev.revision, "%d.%d", + UNSTUFF_BITS(resp, 44, 4), UNSTUFF_BITS(resp, + 40, 4)); + sprintf((char *)mmc_dev.product, "%u", + UNSTUFF_BITS(resp, 16, 24)); + break; + + case 2: /* MMC v2.0 - v2.2 */ + case 3: /* MMC v3.1 - v3.3 */ + case 4: /* MMC v4 */ + sprintf((char *)mmc_dev.vendor, + "Man %02x OEM %04x \"%c%c%c%c%c%c\" Date %02u/%04u", + UNSTUFF_BITS(resp, 120, 8), UNSTUFF_BITS(resp, + 104, + 16), + UNSTUFF_BITS(resp, 96, 8), UNSTUFF_BITS(resp, + 88, 8), + UNSTUFF_BITS(resp, 80, 8), UNSTUFF_BITS(resp, + 72, 8), + UNSTUFF_BITS(resp, 64, 8), UNSTUFF_BITS(resp, + 56, 8), + UNSTUFF_BITS(resp, 12, 4), UNSTUFF_BITS(resp, 8, + 4) + + 1997); + sprintf((char *)mmc_dev.product, "%u", + UNSTUFF_BITS(resp, 16, 32)); + sprintf((char *)mmc_dev.revision, "N/A"); + break; + + default: + printf("MMC card has unknown MMCA version %d\n", + spec_ver); + break; + } + } + printf("%s card.\nVendor: %s\nProduct: %s\nRevision: %s\n", + (IF_TYPE_SD == mmc_dev.if_type) ? "SD" : "MMC", mmc_dev.vendor, + mmc_dev.product, mmc_dev.revision); +} + +/* + * Given a 128-bit response, decode to our card CSD structure. + */ +static void mmc_decode_csd(uint32_t * resp) +{ + unsigned int mult, csd_struct; + + if (IF_TYPE_SD == mmc_dev.if_type) { + csd_struct = UNSTUFF_BITS(resp, 126, 2); + if (csd_struct != 0) { + printf("SD: unrecognised CSD structure version %d\n", + csd_struct); + return; + } + } else { + /* + * We only understand CSD structure v1.1 and v1.2. + * v1.2 has extra information in bits 15, 11 and 10. + */ + csd_struct = UNSTUFF_BITS(resp, 126, 2); + if (csd_struct != 1 && csd_struct != 2) { + printf("MMC: unrecognised CSD structure version %d\n", + csd_struct); + return; + } + + spec_ver = UNSTUFF_BITS(resp, 122, 4); + mmc_dev.if_type = IF_TYPE_MMC; + } + + mult = 1 << (UNSTUFF_BITS(resp, 47, 3) + 2); + mmc_dev.lba = (1 + UNSTUFF_BITS(resp, 62, 12)) * mult; + mmc_dev.blksz = 1 << UNSTUFF_BITS(resp, 80, 4); + + /* FIXME: The following just makes assumes that's the partition type -- should really read it */ + mmc_dev.part_type = PART_TYPE_DOS; + mmc_dev.dev = 0; + mmc_dev.lun = 0; + mmc_dev.type = DEV_TYPE_HARDDISK; + mmc_dev.removable = 0; + mmc_dev.block_read = mmc_bread; + + printf("Detected: %u blocks of %u bytes (%uMB) ", mmc_dev.lba, + mmc_dev.blksz, mmc_dev.lba * mmc_dev.blksz / (1024 * 1024)); +} + int /****************************************************/ mmc_init(int verbose) /****************************************************/ { - int retries, rc = -ENODEV; - uchar *resp; + int retries, rc = -ENODEV; + uint32_t cid_resp[4]; + uint32_t *resp; + uint16_t rca = 0; -#ifdef CONFIG_LUBBOCK - set_GPIO_mode( GPIO6_MMCCLK_MD ); - set_GPIO_mode( GPIO8_MMCCS0_MD ); + /* Reset device interface type */ + mmc_dev.if_type = IF_TYPE_UNKNOWN; + +#if defined (CONFIG_LUBBOCK) || (defined (CONFIG_GUMSTIX) && !defined(CONFIG_PXA27X)) + set_GPIO_mode(GPIO6_MMCCLK_MD); + set_GPIO_mode(GPIO8_MMCCS0_MD); #endif - CKEN |= CKEN12_MMC; /* enable MMC unit clock */ + CKEN |= CKEN12_MMC; /* enable MMC unit clock */ #if defined(CONFIG_ADSVIX) /* turn on the power */ GPCR(114) = GPIO_bit(114); udelay(1000); #endif - mmc_csd.c_size = 0; - - MMC_CLKRT = MMC_CLKRT_0_3125MHZ; - MMC_RESTO = MMC_RES_TO_MAX; - MMC_SPI = MMC_SPI_DISABLE; + MMC_CLKRT = MMC_CLKRT_0_3125MHZ; + MMC_RESTO = MMC_RES_TO_MAX; + MMC_SPI = MMC_SPI_DISABLE; /* reset */ - retries = 10; - resp = mmc_cmd(0, 0, 0, 0); - resp = mmc_cmd(1, 0x00ff, 0xc000, MMC_CMDAT_INIT|MMC_CMDAT_BUSY|MMC_CMDAT_R3); - while (retries-- && resp && !(resp[4] & 0x80)) { - debug("resp %x %x\n", resp[0], resp[1]); + mmc_cmd(MMC_CMD_RESET, 0, 0, MMC_CMDAT_INIT | MMC_CMDAT_R0); + udelay(200000); + retries = 3; + while (retries--) { + resp = mmc_cmd(MMC_CMD_APP_CMD, 0, 0, MMC_CMDAT_R1); + if (!(resp[0] & 0x00000020)) { /* Card does not support APP_CMD */ + debug("Card does not support APP_CMD\n"); + break; + } + + resp = mmc_cmd(SD_CMD_APP_OP_COND, 0x0020, 0, MMC_CMDAT_R3 | (retries < 2 ? 0 : MMC_CMDAT_INIT)); /* Select 3.2-3.3 and 3.3-3.4V */ + if (resp[0] & 0x80000000) { + mmc_dev.if_type = IF_TYPE_SD; + debug("Detected SD card\n"); + break; + } #ifdef CONFIG_PXA27X udelay(10000); #else - udelay(50); + udelay(200000); +#endif + } + + if (retries <= 0 || !(IF_TYPE_SD == mmc_dev.if_type)) { + debug("Failed to detect SD Card, trying MMC\n"); + resp = + mmc_cmd(MMC_CMD_SEND_OP_COND, 0x00ff, 0x8000, MMC_CMDAT_R3); + + retries = 10; + while (retries-- && resp && !(resp[0] & 0x80000000)) { +#ifdef CONFIG_PXA27X + udelay(10000); +#else + udelay(200000); #endif - resp = mmc_cmd(1, 0x00ff, 0xff00, MMC_CMDAT_BUSY|MMC_CMDAT_R3); + resp = + mmc_cmd(MMC_CMD_SEND_OP_COND, 0x00ff, 0x8000, + MMC_CMDAT_R3); + } } /* try to get card id */ - resp = mmc_cmd(2, 0, 0, MMC_CMDAT_R2); + resp = + mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, 0, MMC_CMDAT_R2 | MMC_CMDAT_BUSY); if (resp) { - /* TODO configure mmc driver depending on card attributes */ - mmc_cid_t *cid = (mmc_cid_t *)resp; - if (verbose) { - printf("MMC found. Card desciption is:\n"); - printf("Manufacturer ID = %02x%02x%02x\n", - cid->id[0], cid->id[1], cid->id[2]); - printf("HW/FW Revision = %x %x\n",cid->hwrev, cid->fwrev); - cid->hwrev = cid->fwrev = 0; /* null terminate string */ - printf("Product Name = %s\n",cid->name); - printf("Serial Number = %02x%02x%02x\n", - cid->sn[0], cid->sn[1], cid->sn[2]); - printf("Month = %d\n",cid->month); - printf("Year = %d\n",1997 + cid->year); - } - /* fill in device description */ - mmc_dev.if_type = IF_TYPE_MMC; - mmc_dev.part_type = PART_TYPE_DOS; - mmc_dev.dev = 0; - mmc_dev.lun = 0; - mmc_dev.type = 0; - /* FIXME fill in the correct size (is set to 32MByte) */ - mmc_dev.blksz = 512; - mmc_dev.lba = 0x10000; - sprintf((char*)mmc_dev.vendor,"Man %02x%02x%02x Snr %02x%02x%02x", - cid->id[0], cid->id[1], cid->id[2], - cid->sn[0], cid->sn[1], cid->sn[2]); - sprintf((char*)mmc_dev.product,"%s",cid->name); - sprintf((char*)mmc_dev.revision,"%x %x",cid->hwrev, cid->fwrev); - mmc_dev.removable = 0; - mmc_dev.block_read = mmc_bread; + memcpy(cid_resp, resp, sizeof(cid_resp)); /* MMC exists, get CSD too */ - resp = mmc_cmd(MMC_CMD_SET_RCA, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1); - resp = mmc_cmd(MMC_CMD_SEND_CSD, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R2); + resp = mmc_cmd(MMC_CMD_SET_RCA, 0, 0, MMC_CMDAT_R1); + if (IF_TYPE_SD == mmc_dev.if_type) + rca = ((resp[0] & 0xffff0000) >> 16); + resp = mmc_cmd(MMC_CMD_SEND_CSD, rca, 0, MMC_CMDAT_R2); if (resp) { - mmc_csd_t *csd = (mmc_csd_t *)resp; - memcpy(&mmc_csd, csd, sizeof(csd)); + mmc_decode_csd(resp); rc = 0; mmc_ready = 1; - /* FIXME add verbose printout for csd */ } + + mmc_decode_cid(cid_resp); } + MMC_CLKRT = 0; /* 20 MHz */ + resp = mmc_cmd(MMC_CMD_SELECT_CARD, rca, 0, MMC_CMDAT_R1); + #ifdef CONFIG_PXA27X - MMC_CLKRT = 1; /* 10 MHz - see Intel errata */ -#else - MMC_CLKRT = 0; /* 20 MHz */ + if (IF_TYPE_SD == mmc_dev.if_type) { + resp = mmc_cmd(MMC_CMD_APP_CMD, rca, 0, MMC_CMDAT_R1); + resp = mmc_cmd(SD_CMD_APP_SET_BUS_WIDTH, 0, 2, MMC_CMDAT_R1); + wide = MMC_CMDAT_SD_4DAT; + } #endif - resp = mmc_cmd(7, MMC_DEFAULT_RCA, 0, MMC_CMDAT_R1); - fat_register_device(&mmc_dev,1); /* partitions start counting with 1 */ + fat_register_device(&mmc_dev, 1); /* partitions start counting with 1 */ return rc; } -int -mmc_ident(block_dev_desc_t *dev) +int mmc_ident(block_dev_desc_t * dev) { return 0; } -int -mmc2info(ulong addr) +int mmc2info(ulong addr) { - /* FIXME hard codes to 32 MB device */ - if (addr >= CFG_MMC_BASE && addr < CFG_MMC_BASE + 0x02000000) { + if (addr >= CFG_MMC_BASE + && addr < CFG_MMC_BASE + (mmc_dev.lba * mmc_dev.blksz)) { return 1; } return 0; } -#endif /* CONFIG_MMC */ +#endif /* CONFIG_MMC */ diff --git a/include/asm-arm/arch-pxa/mmc.h b/include/asm-arm/arch-pxa/mmc.h index a62679a1a..b9304b1bd 100644 --- a/include/asm-arm/arch-pxa/mmc.h +++ b/include/asm-arm/arch-pxa/mmc.h @@ -54,14 +54,17 @@ #define MMC_SPI_CRC_ON (0x01UL << 1) /* MMC_CMDAT */ +#define MMC_CMDAT_SD_4DAT (0x0001UL << 8) #define MMC_CMDAT_MMC_DMA_EN (0x0001UL << 7) #define MMC_CMDAT_INIT (0x0001UL << 6) #define MMC_CMDAT_BUSY (0x0001UL << 5) +#define MMC_CMDAT_BCR (0x0003UL << 5) #define MMC_CMDAT_STREAM (0x0001UL << 4) #define MMC_CMDAT_BLOCK (0x0000UL << 4) #define MMC_CMDAT_WRITE (0x0001UL << 3) #define MMC_CMDAT_READ (0x0000UL << 3) #define MMC_CMDAT_DATA_EN (0x0001UL << 2) +#define MMC_CMDAT_R0 (0) #define MMC_CMDAT_R1 (0x0001UL) #define MMC_CMDAT_R2 (0x0002UL) #define MMC_CMDAT_R3 (0x0003UL) @@ -111,6 +114,7 @@ #define MMC_CMD_SEND_OP_COND 1 #define MMC_CMD_ALL_SEND_CID 2 #define MMC_CMD_SET_RCA 3 +#define MMC_CMD_SELECT_CARD 7 #define MMC_CMD_SEND_CSD 9 #define MMC_CMD_SEND_CID 10 #define MMC_CMD_SEND_STATUS 13 @@ -118,6 +122,10 @@ #define MMC_CMD_READ_BLOCK 17 #define MMC_CMD_RD_BLK_MULTI 18 #define MMC_CMD_WRITE_BLOCK 24 +#define MMC_CMD_APP_CMD 55 + +#define SD_CMD_APP_SET_BUS_WIDTH 6 +#define SD_CMD_APP_OP_COND 41 #define MMC_MAX_BLOCK_SIZE 512 @@ -158,42 +166,41 @@ typedef struct mmc_cid typedef struct mmc_csd { - uchar ecc:2, - file_format:2, - tmp_write_protect:1, - perm_write_protect:1, - copy:1, - file_format_grp:1; - uint64_t content_prot_app:1, - rsvd3:4, - write_bl_partial:1, - write_bl_len:4, - r2w_factor:3, - default_ecc:2, - wp_grp_enable:1, - wp_grp_size:5, - erase_grp_mult:5, - erase_grp_size:5, - c_size_mult1:3, - vdd_w_curr_max:3, - vdd_w_curr_min:3, - vdd_r_curr_max:3, - vdd_r_curr_min:3, - c_size:12, - rsvd2:2, - dsr_imp:1, - read_blk_misalign:1, - write_blk_misalign:1, - read_bl_partial:1; - - ushort read_bl_len:4, - ccc:12; - uchar tran_speed; - uchar nsac; - uchar taac; - uchar rsvd1:2, - spec_vers:4, - csd_structure:2; + uint8_t csd_structure:2, + spec_ver:4, + rsvd1:2; + uint8_t taac; + uint8_t nsac; + uint8_t tran_speed; + uint16_t ccc:12, + read_bl_len:4; + uint64_t read_bl_partial:1, + write_blk_misalign:1, + read_blk_misalign:1, + dsr_imp:1, + rsvd2:2, + c_size:12, + vdd_r_curr_min:3, + vdd_r_curr_max:3, + vdd_w_curr_min:3, + vdd_w_curr_max:3, + c_size_mult:3, + erase_blk_en:1, + sector_size:7, + wp_grp_size:7, + wp_grp_enable:1, + default_ecc:2, + r2w_factor:3, + write_bl_len:4, + write_bl_partial:1, + rsvd3:4, + content_prot_app:1; + uint8_t file_format_grp:1, + copy:1, + perm_write_protect:1, + tmp_write_protect:1, + file_format:2, + ecc:2; } mmc_csd_t; diff --git a/include/part.h b/include/part.h index 37b2b6845..8407aa05d 100644 --- a/include/part.h +++ b/include/part.h @@ -59,6 +59,7 @@ typedef struct block_dev_desc { #define IF_TYPE_USB 4 #define IF_TYPE_DOC 5 #define IF_TYPE_MMC 6 +#define IF_TYPE_SD 7 /* Part types */ #define PART_TYPE_UNKNOWN 0x00 |