sdhci-s3c: Samsung S3C based SDHCI controller glue

[firefly-linux-kernel-4.4.55.git] / drivers / mmc / host / Kconfig

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 40111a6d8d5bc791e00fcdb315f6d2384dc46cfb..760992204a5e59b6db0511ffaac4295738981713 100644 (file)
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -94,6 +94,31 @@ config MMC_SDHCI_PLTFM
 
          If unsure, say N.
 
+config MMC_SDHCI_S3C
+       tristate "SDHCI support on Samsung S3C SoC"
+       depends on MMC_SDHCI && (PLAT_S3C24XX || PLAT_S3C64XX)
+       help
+         This selects the Secure Digital Host Controller Interface (SDHCI)
+         often referrered to as the HSMMC block in some of the Samsung S3C
+         range of SoC.
+
+         Note, due to the problems with DMA, the DMA support is only
+         available with CONFIG_EXPERIMENTAL is selected.
+
+         If you have a controller with this interface, say Y or M here.
+
+         If unsure, say N.
+
+config MMC_SDHCI_S3C_DMA
+       bool "DMA support on S3C SDHCI"
+       depends on MMC_SDHCI_S3C && EXPERIMENTAL
+       help
+         Enable DMA support on the Samsung S3C SDHCI glue. The DMA
+         has proved to be problematic if the controller encounters
+         certain errors, and thus should be treated with care.
+
+         YMMV.
+
 config MMC_OMAP
        tristate "TI OMAP Multimedia Card Interface support"
        depends on ARCH_OMAP