From: Chen-Yu Tsai Date: Sun, 29 May 2016 07:04:43 +0000 (+0800) Subject: mmc: sunxi: Fix DDR MMC timings for A80 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0175249efa9310eed79650209600a75ace656bc9;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git mmc: sunxi: Fix DDR MMC timings for A80 The MMC clock timings were incorrectly calculated, when the conversion from delay value to delay phase was done. The 50M DDR and 50M DDR 8bit timings are off, and make eMMC DDR unusable. Unfortunately it seems different controllers on the same SoC have different timings. The new settings are taken from mmc2, which is commonly used with eMMC. The settings for the slower timing modes seem to work despite being wrong, so leave them be. Signed-off-by: Chen-Yu Tsai Acked-by: Hans de Goede Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c index 7fc8b7aa83f0..5873dc344ab2 100644 --- a/drivers/mmc/host/sunxi-mmc.c +++ b/drivers/mmc/host/sunxi-mmc.c @@ -970,8 +970,8 @@ static const struct sunxi_mmc_clk_delay sun9i_mmc_clk_delays[] = { [SDXC_CLK_400K] = { .output = 180, .sample = 180 }, [SDXC_CLK_25M] = { .output = 180, .sample = 75 }, [SDXC_CLK_50M] = { .output = 150, .sample = 120 }, - [SDXC_CLK_50M_DDR] = { .output = 90, .sample = 120 }, - [SDXC_CLK_50M_DDR_8BIT] = { .output = 90, .sample = 120 }, + [SDXC_CLK_50M_DDR] = { .output = 54, .sample = 36 }, + [SDXC_CLK_50M_DDR_8BIT] = { .output = 72, .sample = 72 }, }; static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,