diff options
| -rw-r--r-- | drivers/mci/pxamci.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/mci/pxamci.c b/drivers/mci/pxamci.c index 239b46a4d1..ee2f08c407 100644 --- a/drivers/mci/pxamci.c +++ b/drivers/mci/pxamci.c @@ -25,6 +25,10 @@ #define DRIVER_NAME "pxa-mmc" +#define RX_TIMEOUT (100 * MSECOND) +#define TX_TIMEOUT (250 * MSECOND) +#define CMD_TIMEOUT (100 * MSECOND) + static void clk_enable(void) { CKEN |= CKEN_MMC; @@ -54,7 +58,7 @@ static void pxamci_stop_clock(struct pxamci_host *host) stat = mmc_readl(MMC_STAT); if (stat & STAT_CLK_EN) writel(STOP_CLOCK, host->base + MMC_STRPCL); - while (!is_timeout(start, 10 * MSECOND) && stat & STAT_CLK_EN) + while (!is_timeout(start, CMD_TIMEOUT) && stat & STAT_CLK_EN) stat = mmc_readl(MMC_STAT); if (stat & STAT_CLK_EN) @@ -63,12 +67,12 @@ static void pxamci_stop_clock(struct pxamci_host *host) static void pxamci_setup_data(struct pxamci_host *host, struct mci_data *data) { - static const unsigned int timeout = 100000000; /* 10ms */ + static const unsigned int timeout_ns = 1000 * MSECOND; /* 1000 ms */ mci_dbg("nbblocks=%d, blocksize=%d\n", data->blocks, data->blocksize); mmc_writel(data->blocks, MMC_NOB); mmc_writel(data->blocksize, MMC_BLKLEN); - mmc_writel((timeout + 255) / 256, MMC_RDTO); + mmc_writel(DIV_ROUND_UP(timeout_ns, 13128), MMC_RDTO); } static int pxamci_read_data(struct pxamci_host *host, unsigned char *dst, @@ -83,9 +87,10 @@ static int pxamci_read_data(struct pxamci_host *host, unsigned char *dst, trf_len = min_t(int, len, MMC_FIFO_LENGTH); for (start = get_time_ns(), ret = -ETIMEDOUT; - ret && !is_timeout(start, 10 * MSECOND);) + ret && !is_timeout(start, RX_TIMEOUT);) if (mmc_readl(MMC_I_REG) & RXFIFO_RD_REQ) ret = 0; + trf_len1 = trf_len % 4; trf_len4 = trf_len / 4; for (dst4 = (u32 *)dst; !ret && trf_len4 > 0; trf_len4--) @@ -97,7 +102,7 @@ static int pxamci_read_data(struct pxamci_host *host, unsigned char *dst, if (!ret) for (start = get_time_ns(), ret = -ETIMEDOUT; - ret && !is_timeout(start, 10 * MSECOND);) + ret && !is_timeout(start, RX_TIMEOUT);) if (mmc_readl(MMC_STAT) & STAT_DATA_TRAN_DONE) ret = 0; mci_dbg("ret=%d, remain=%d, stat=%x, mmc_i_reg=%x\n", @@ -118,7 +123,7 @@ static int pxamci_write_data(struct pxamci_host *host, const unsigned char *src, partial = trf_len < MMC_FIFO_LENGTH; for (start = get_time_ns(), ret = -ETIMEDOUT; - ret && !is_timeout(start, 10 * MSECOND);) + ret && !is_timeout(start, TX_TIMEOUT);) if (mmc_readl(MMC_I_REG) & TXFIFO_WR_REQ) ret = 0; for (; !ret && trf_len > 0; trf_len--, len--) @@ -129,7 +134,7 @@ static int pxamci_write_data(struct pxamci_host *host, const unsigned char *src, if (!ret) for (start = get_time_ns(), ret = -ETIMEDOUT; - ret && !is_timeout(start, 100 * MSECOND);) { + ret && !is_timeout(start, TX_TIMEOUT);) { stat = mmc_readl(MMC_STAT); stat &= STAT_DATA_TRAN_DONE | STAT_PRG_DONE; if (stat == (STAT_DATA_TRAN_DONE | STAT_PRG_DONE)) @@ -236,7 +241,7 @@ static int pxamci_mmccmd(struct pxamci_host *host, struct mci_cmd *cmd, pxamci_start_cmd(host, cmd, cmddat); for (start = get_time_ns(), ret = -ETIMEDOUT; - ret && !is_timeout(start, 10 * MSECOND);) + ret && !is_timeout(start, CMD_TIMEOUT);) if (mmc_readl(MMC_STAT) & STAT_END_CMD_RES) ret = 0; |