eSDHC supports two reference clocks (platform clock and peripheral clock). Peripheral clock which could provide higher clock frequency is required to be used for tuning of SD UHS mode and eMMC HS200/HS400 modes.
Signed-off-by: Yinbo Zhu yinbo.zhu@nxp.com --- drivers/mmc/Kconfig | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 04a4e7716f..3c1523a129 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -130,7 +130,6 @@ config MMC_HS200_SUPPORT The HS200 mode is support by some eMMC. The bus frequency is up to 200MHz. This mode requires tuning the IO.
- config SPL_MMC_HS200_SUPPORT bool "enable HS200 support in SPL" help @@ -637,10 +636,19 @@ config TEGRA124_MMC_DISABLE_EXT_LOOPBACK
config FSL_ESDHC bool "Freescale/NXP eSDHC controller support" + select FSL_ESDHC_USE_PERIPHERAL_CLK if MMC_HS200_SUPPORT || MMC_UHS_SUPPORT help This selects support for the eSDHC (enhanced secure digital host controller) found on numerous Freescale/NXP SoCs.
+config FSL_ESDHC_USE_PERIPHERAL_CLK + bool "enable ESDHC peripheral clock support" + depends on FSL_ESDHC + help + eSDHC supports two reference clocks (platform clock and peripheral clock). + Peripheral clock which could provide higher clock frequency is required to + be used for tuning of SD UHS mode and eMMC HS200/HS400 modes. + endmenu
config SYS_FSL_ERRATUM_ESDHC111