Currently default fallback SDHC mode is 1-bit. Add new config option CONFIG_SYS_FSL_ESDHC_DEFAULT_BUS_WIDTH to allow specifying default fallback mode. This is useful e.g. for SPL builds which loads other parts from SD card during boot process.
Signed-off-by: Pali Rohár pali@kernel.org --- drivers/mmc/Kconfig | 5 +++++ drivers/mmc/fsl_esdhc.c | 1 + 2 files changed, 6 insertions(+)
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index f04cc44e1973..df15dff6248f 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -826,6 +826,11 @@ config FSL_ESDHC_VS33_NOT_SUPPORT For eSDHC, power supply is through peripheral circuit. 3.3V support is common. Select this if 3.3V power supply not supported.
+config SYS_FSL_ESDHC_DEFAULT_BUS_WIDTH + int + depends on FSL_ESDHC + default 1 + config FSL_ESDHC_IMX bool "Freescale/NXP i.MX eSDHC controller support" help diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index 834f8933b0c6..a4c22942c2be 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -988,6 +988,7 @@ int fsl_esdhc_mmc_init(struct bd_info *bis)
cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1); cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR; + cfg->max_bus_width = CONFIG_SYS_FSL_ESDHC_DEFAULT_BUS_WIDTH; /* Prefer peripheral clock which provides higher frequency. */ if (gd->arch.sdhc_per_clk) cfg->sdhc_clk = gd->arch.sdhc_per_clk;