diff options
Diffstat (limited to 'drivers/mmc/sdhci.c')
| -rw-r--r-- | drivers/mmc/sdhci.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 75556a3..d89e302 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -13,7 +13,11 @@ #include <mmc.h> #include <sdhci.h> +#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER) +void *aligned_buffer = (void *)CONFIG_FIXED_SDHCI_ALIGNED_BUFFER; +#else void *aligned_buffer; +#endif static void sdhci_reset(struct sdhci_host *host, u8 mask) { @@ -133,8 +137,8 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, int trans_bytes = 0, is_aligned = 1; u32 mask, flags, mode; unsigned int time = 0, start_addr = 0; - unsigned int retry = 10000; int mmc_dev = mmc->block_dev.dev; + unsigned start = get_timer(0); /* Timeout unit - ms */ static unsigned int cmd_timeout = CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT; @@ -205,6 +209,17 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, memcpy(aligned_buffer, data->src, trans_bytes); } +#if defined(CONFIG_FIXED_SDHCI_ALIGNED_BUFFER) + /* + * Always use this bounce-buffer when + * CONFIG_FIXED_SDHCI_ALIGNED_BUFFER is defined + */ + is_aligned = 0; + start_addr = (unsigned long)aligned_buffer; + if (data->flags != MMC_DATA_READ) + memcpy(aligned_buffer, data->src, trans_bytes); +#endif + sdhci_writel(host, start_addr, SDHCI_DMA_ADDRESS); mode |= SDHCI_TRNS_DMA; #endif @@ -222,15 +237,15 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd, flush_cache(start_addr, trans_bytes); #endif sdhci_writew(host, SDHCI_MAKE_CMD(cmd->cmdidx, flags), SDHCI_COMMAND); + start = get_timer(0); do { stat = sdhci_readl(host, SDHCI_INT_STATUS); if (stat & SDHCI_INT_ERROR) break; - if (--retry == 0) - break; - } while ((stat & mask) != mask); + } while (((stat & mask) != mask) && + (get_timer(start) < CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT)); - if (retry == 0) { + if (get_timer(start) >= CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT) { if (host->quirks & SDHCI_QUIRK_BROKEN_R1B) return 0; else { |