X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fmmc%2Fpxa_mmc.c;h=48e21ef7a59546bf8f6c45b7431c32005fed22e9;hb=ea6ebe21772568ee97fb5c23c01e993140f0e0e6;hp=8225235bfed6a2a24e94cad3b8acb284a0bd6448;hpb=ea393eb1d6a786fc2e895f90abb5f7e7541aef45;p=u-boot diff --git a/drivers/mmc/pxa_mmc.c b/drivers/mmc/pxa_mmc.c index 8225235bfe..48e21ef7a5 100644 --- a/drivers/mmc/pxa_mmc.c +++ b/drivers/mmc/pxa_mmc.c @@ -27,6 +27,7 @@ #include #include #include +#include #include "pxa_mmc.h" @@ -59,18 +60,20 @@ mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort 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 | 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)) ; - - status = MMC_STAT; + writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL); + writel(~MMC_I_MASK_CLK_IS_OFF, MMC_I_MASK); + while (!(readl(MMC_I_REG) & MMC_I_REG_CLK_IS_OFF)) + ; + writel(cmd, MMC_CMD); + writel(argh, MMC_ARGH); + writel(argl, MMC_ARGL); + writel(cmdat | wide, MMC_CMDAT); + writel(~MMC_I_MASK_END_CMD_RES, MMC_I_MASK); + writel(MMC_STRPCL_START_CLK, MMC_STRPCL); + while (!(readl(MMC_I_REG) & MMC_I_REG_END_CMD_RES)) + ; + + status = readl(MMC_STAT); debug("MMC status 0x%08x\n", status); if (status & MMC_STAT_TIME_OUT_RESPONSE) { return 0; @@ -80,10 +83,10 @@ mmc_cmd(ushort cmd, ushort argh, ushort argl, ushort cmdat) * 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); + a = (readl(MMC_RES) & 0xffff); for (i = 0; i < 4; i++) { - b = (MMC_RES & 0xffff); - c = (MMC_RES & 0xffff); + b = (readl(MMC_RES) & 0xffff); + c = (readl(MMC_RES) & 0xffff); resp[i] = (a << 24) | (b << 8) | (c >> 8); a = c; debug("MMC resp[%d] = %#08x\n", i, resp[i]); @@ -115,37 +118,38 @@ mmc_block_read(uchar * dst, ulong src, ulong len) /* send read command */ argh = src >> 16; argl = src & 0xffff; - MMC_STRPCL = MMC_STRPCL_STOP_CLK; - MMC_RDTO = 0xffff; - MMC_NOB = 1; - MMC_BLKLEN = len; + writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL); + writel(0xffff, MMC_RDTO); + writel(1, MMC_NOB); + writel(len, MMC_BLKLEN); mmc_cmd(MMC_CMD_READ_SINGLE_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; + writel(~MMC_I_MASK_RXFIFO_RD_REQ, MMC_I_MASK); while (len) { - if (MMC_I_REG & MMC_I_REG_RXFIFO_RD_REQ) { -#ifdef CONFIG_PXA27X + if (readl(MMC_I_REG) & MMC_I_REG_RXFIFO_RD_REQ) { +#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS) int i; for (i = min(len, 32); i; i--) { - *dst++ = *((volatile uchar *)&MMC_RXFIFO); + *dst++ = readb(MMC_RXFIFO); len--; } #else - *dst++ = MMC_RXFIFO; + *dst++ = readb(MMC_RXFIFO); len--; #endif } - status = MMC_STAT; + status = readl(MMC_STAT); if (status & MMC_STAT_ERRORS) { printf("MMC_STAT error %lx\n", status); return -1; } } - MMC_I_MASK = ~MMC_I_MASK_DATA_TRAN_DONE; - while (!(MMC_I_REG & MMC_I_REG_DATA_TRAN_DONE)) ; - status = MMC_STAT; + writel(~MMC_I_MASK_DATA_TRAN_DONE, MMC_I_MASK); + while (!(readl(MMC_I_REG) & MMC_I_REG_DATA_TRAN_DONE)) + ; + status = readl(MMC_STAT); if (status & MMC_STAT_ERRORS) { printf("MMC_STAT error %lx\n", status); return -1; @@ -176,37 +180,39 @@ mmc_block_write(ulong dst, uchar * src, int len) /* send write command */ argh = dst >> 16; argl = dst & 0xffff; - MMC_STRPCL = MMC_STRPCL_STOP_CLK; - MMC_NOB = 1; - MMC_BLKLEN = len; + writel(MMC_STRPCL_STOP_CLK, MMC_STRPCL); + writel(1, MMC_NOB); + writel(len, MMC_BLKLEN); mmc_cmd(MMC_CMD_WRITE_SINGLE_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; + writel(~MMC_I_MASK_TXFIFO_WR_REQ, MMC_I_MASK); while (len) { - if (MMC_I_REG & MMC_I_REG_TXFIFO_WR_REQ) { + if (readl(MMC_I_REG) & MMC_I_REG_TXFIFO_WR_REQ) { int i, bytes = min(32, len); for (i = 0; i < bytes; i++) { - MMC_TXFIFO = *src++; + writel(*src++, MMC_TXFIFO); } if (bytes < 32) { - MMC_PRTBUF = MMC_PRTBUF_BUF_PART_FULL; + writel(MMC_PRTBUF_BUF_PART_FULL, MMC_PRTBUF); } len -= bytes; } - status = MMC_STAT; + status = readl(MMC_STAT); if (status & MMC_STAT_ERRORS) { printf("MMC_STAT error %lx\n", status); return -1; } } - MMC_I_MASK = ~MMC_I_MASK_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)) ; - status = MMC_STAT; + writel(~MMC_I_MASK_DATA_TRAN_DONE, MMC_I_MASK); + while (!(readl(MMC_I_REG) & MMC_I_REG_DATA_TRAN_DONE)) + ; + writel(~MMC_I_MASK_PRG_DONE, MMC_I_MASK); + while (!(readl(MMC_I_REG) & MMC_I_REG_PRG_DONE)) + ; + status = readl(MMC_STAT); if (status & MMC_STAT_ERRORS) { printf("MMC_STAT error %lx\n", status); return -1; @@ -558,11 +564,14 @@ mmc_legacy_init(int verbose) set_GPIO_mode(GPIO6_MMCCLK_MD); set_GPIO_mode(GPIO8_MMCCS0_MD); #endif - CKEN |= CKEN12_MMC; /* enable MMC unit clock */ - - MMC_CLKRT = MMC_CLKRT_0_3125MHZ; - MMC_RESTO = MMC_RES_TO_MAX; - MMC_SPI = MMC_SPI_DISABLE; +#ifdef CONFIG_CPU_MONAHANS /* pxa3xx */ + writel(readl(CKENA) | CKENA_12_MMC0 | CKENA_13_MMC1, CKENA); +#else /* pxa2xx */ + writel(readl(CKEN) | CKEN12_MMC, CKEN); /* enable MMC unit clock */ +#endif + writel(MMC_CLKRT_0_3125MHZ, MMC_CLKRT); + writel(MMC_RES_TO_MAX, MMC_RESTO); + writel(MMC_SPI_DISABLE, MMC_SPI); /* reset */ mmc_cmd(MMC_CMD_GO_IDLE_STATE, 0, 0, MMC_CMDAT_INIT | MMC_CMDAT_R0); @@ -584,11 +593,7 @@ mmc_legacy_init(int verbose) debug("Detected SD card\n"); break; } -#ifdef CONFIG_PXA27X - udelay(10000); -#else udelay(200000); -#endif } if (retries <= 0 || !(IF_TYPE_SD == mmc_dev.if_type)) { @@ -598,11 +603,7 @@ mmc_legacy_init(int verbose) retries = 10; while (retries-- && resp && !(resp[0] & 0x80000000)) { -#ifdef CONFIG_PXA27X - udelay(10000); -#else udelay(200000); -#endif resp = mmc_cmd(MMC_CMD_SEND_OP_COND, 0x00ff, 0x8000, MMC_CMDAT_R3); @@ -629,10 +630,10 @@ mmc_legacy_init(int verbose) mmc_decode_cid(cid_resp); } - MMC_CLKRT = 0; /* 20 MHz */ + writel(0, MMC_CLKRT); /* 20 MHz */ resp = mmc_cmd(MMC_CMD_SELECT_CARD, rca, 0, MMC_CMDAT_R1); -#ifdef CONFIG_PXA27X +#if defined(CONFIG_PXA27X) || defined(CONFIG_CPU_MONAHANS) 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);