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authorYinbo Zhu <yinbo.zhu@nxp.com>2019-07-16 15:09:07 +0800
committerPriyanka Jain <priyanka.jain@nxp.com>2019-09-12 14:02:10 +0530
commit29009a507c9145e51620b5d289808b0f413af5fe (patch)
treebc9d40315539ac74718233c01e2d8376515e7cef /drivers/mmc
parent24cb6f2295ca4859de257d2922701bff6ca6f49b (diff)
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/mmc')
-rw-r--r--drivers/mmc/Kconfig10
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