From 29009a507c9145e51620b5d289808b0f413af5fe Mon Sep 17 00:00:00 2001 From: Yinbo Zhu Date: Tue, 16 Jul 2019 15:09:07 +0800 Subject: [PATCH] mmc: Kconfig: Add FSL_ESDHC_USE_PERIPHERAL_CLK option NXP fsl_esdhc controller supports two reference clocks: platform clock and peripheral clock Peripheral clock can provide higher clock frequency which is required to be used for tuning of SD UHS mode and eMMC HS200/HS400 modes. Peripheral clock is enabled by default by defining config option FSL_ESDHC_USE_PERIPHERAL_CLK if eMMC HS200/HS400 modes are supported. Signed-off-by: Yinbo Zhu Signed-off-by: Priyanka Jain --- drivers/mmc/Kconfig | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 8fb2bfa444..7361bcaf8e 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -167,7 +167,6 @@ 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 @@ -695,10 +694,19 @@ endif 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. + config FSL_ESDHC_IMX bool "Freescale/NXP i.MX eSDHC controller support" help -- 2.39.5