diff --git a/target/linux/generic/backport-4.14/420-enable-CONFIG_MMC_SDHCI_IO_ACCESSORS.patch b/target/linux/generic/backport-4.14/420-enable-CONFIG_MMC_SDHCI_IO_ACCESSORS.patch
new file mode 100644
index 00000000000..994ecd7ed41
--- /dev/null
+++ b/target/linux/generic/backport-4.14/420-enable-CONFIG_MMC_SDHCI_IO_ACCESSORS.patch
@@ -0,0 +1,23 @@
+From: Vijay Viswanath <vviswana@codeaurora.org>
+Date: Wed, 27 Sep 2017 11:04:42 +0530
+Subject: [PATCH v2 3/4] mmc: Kconfig: Enable CONFIG_MMC_SDHCI_IO_ACCESSORS
+
+Enable CONFIG_MMC_SDHCI_IO_ACCESSORS so that SDHC controller specific
+register read and write APIs, if registered, can be used.
+
+Signed-off-by: Vijay Viswanath <vviswana@codeaurora.org>
+Acked-by: Adrian Hunter <adrian.hunter@intel.com>
+---
+ drivers/mmc/host/Kconfig | 1 +
+ 1 file changed, 1 insertion(+)
+
+--- a/drivers/mmc/host/Kconfig
++++ b/drivers/mmc/host/Kconfig
+@@ -420,6 +420,7 @@ config MMC_SDHCI_MSM
+ 	tristate "Qualcomm SDHCI Controller Support"
+ 	depends on ARCH_QCOM || (ARM && COMPILE_TEST)
+ 	depends on MMC_SDHCI_PLTFM
++	select MMC_SDHCI_IO_ACCESSORS
+ 	help
+ 	  This selects the Secure Digital Host Controller Interface (SDHCI)
+ 	  support present in Qualcomm SOCs. The controller supports