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| author | Yinbo Zhu <yinbo.zhu@nxp.com> | 2019-07-16 10:09:07 +0300 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2019-09-12 11:32:10 +0300 |
| commit | 29009a507c9145e51620b5d289808b0f413af5fe (patch) | |
| tree | bc9d40315539ac74718233c01e2d8376515e7cef /drivers | |
| parent | 24cb6f2295ca4859de257d2922701bff6ca6f49b (diff) | |
| download | u-boot-29009a507c9145e51620b5d289808b0f413af5fe.tar.xz | |
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 <yinbo.zhu@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/Kconfig | 10 |
1 files changed, 9 insertions, 1 deletions
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 |