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| author | Jose Miguel Sanchez Sanabria <jsanabria@iseebcn.com> | 2018-06-28 11:47:17 +0200 |
|---|---|---|
| committer | Jose Miguel Sanchez Sanabria <jsanabria@iseebcn.com> | 2018-06-28 11:47:17 +0200 |
| commit | 28bc3362064be5ff6108c99c8cf657f19c572ffb (patch) | |
| tree | 5f3f8d9b6636286f728486ea55515b6dc6ba7cd5 /board | |
| parent | d6c556b7335a6459a88329e9cd3058cf5e13db61 (diff) | |
| download | u-boot-imx-28bc3362064be5ff6108c99c8cf657f19c572ffb.zip u-boot-imx-28bc3362064be5ff6108c99c8cf657f19c572ffb.tar.gz u-boot-imx-28bc3362064be5ff6108c99c8cf657f19c572ffb.tar.bz2 | |
IGEP0146: Fixed Unstable MMC BUG: SWUBIMX17-33
Define separated MUX for PAD CLK of USDHC controllers
Redefine pullups and DSE resistance of other PADs of USDHC controllers
Key point was to reduce the DSE resistance from 80 ohms to 48 ohms and to put CLK line at 100K pulldown
Signed-off-by: Jose Miguel Sanchez Sanabria <jsanabria@iseebcn.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/isee/igep0146/igep0146.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/board/isee/igep0146/igep0146.c b/board/isee/igep0146/igep0146.c index 35c5432..8b4fefd 100644 --- a/board/isee/igep0146/igep0146.c +++ b/board/isee/igep0146/igep0146.c @@ -63,9 +63,14 @@ DECLARE_GLOBAL_DATA_PTR; #define MDIO_PAD_CTRL (PAD_CTL_PUS_100K_UP | PAD_CTL_PUE | \ PAD_CTL_DSE_48ohm | PAD_CTL_SRE_FAST | PAD_CTL_ODE) -#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ - PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ - PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) +#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ + PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \ + PAD_CTL_SRE_FAST | PAD_CTL_HYS | \ + PAD_CTL_PUE | PAD_CTL_PKE) + +#define USDHC_PAD_CLK_CTRL (PAD_CTL_PUS_100K_DOWN | \ + PAD_CTL_SPEED_LOW | PAD_CTL_DSE_48ohm | \ + PAD_CTL_SRE_FAST | PAD_CTL_HYS) #ifdef CONFIG_SYS_I2C_MXC #define I2C_PAD_CTRL ( PAD_CTL_PUS_22K_UP | PAD_CTL_ODE | PAD_CTL_SPEED_MED | \ @@ -133,7 +138,7 @@ static iomux_v3_cfg_t const enet1_pads[] = { /* sd 1 */ static iomux_v3_cfg_t const usdhc1_pads[] = { - MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL), MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), @@ -145,8 +150,7 @@ static iomux_v3_cfg_t const usdhc1_pads[] = { /* emmc */ static iomux_v3_cfg_t const usdhc2_pads[] = { - MX6_PAD_NAND_ALE__GPIO4_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), - MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_RE_B__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CLK_CTRL), MX6_PAD_NAND_WE_B__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NAND_DATA00__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_NAND_DATA01__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), |