diff options
| -rw-r--r-- | drivers/mmc/exynos_dw_mmc.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mmc/exynos_dw_mmc.c b/drivers/mmc/exynos_dw_mmc.c index 32f3ea168b6..ee3ae9f5e65 100644 --- a/drivers/mmc/exynos_dw_mmc.c +++ b/drivers/mmc/exynos_dw_mmc.c @@ -169,7 +169,17 @@ unsigned int exynos_dwmci_get_clk(struct dwmci_host *host, uint freq) u8 clk_div; int err; + /* Should be double rate for DDR mode */ + if (host->mmc->selected_mode == MMC_DDR_52 && host->mmc->bus_width == 8) + freq *= 2; + clk_div = exynos_dwmmc_get_ciu_div(host); + err = exynos_dwmmc_set_sclk(host, freq * clk_div); + if (err) { + printf("DWMMC%d: failed to set clock rate (%d); " + "continue anyway\n", host->dev_index, err); + } + err = exynos_dwmmc_get_sclk(host, &sclk); if (err) { printf("DWMMC%d: failed to get clock rate (%d)\n", |