diff options
| -rw-r--r-- | drivers/mmc/sdhci.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index f72536b..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) { @@ -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 |