nvmem: uniphier: add UniPhier eFuse driver

Add eFuse driver for Socionext UniPhier series SoC.
Note that eFuse device is under soc-glue and this register
implements as read only.

Signed-off-by: Keiji Hayashibara <hayashibara.keiji@socionext.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/nvmem/Kconfig b/drivers/nvmem/Kconfig
index eb09916..ff505af 100644
--- a/drivers/nvmem/Kconfig
+++ b/drivers/nvmem/Kconfig
@@ -123,6 +123,17 @@
 	  This driver can also be built as a module. If so, the module
 	  will be called nvmem_sunxi_sid.
 
+config UNIPHIER_EFUSE
+	tristate "UniPhier SoCs eFuse support"
+	depends on ARCH_UNIPHIER || COMPILE_TEST
+	depends on HAS_IOMEM
+	help
+	  This is a simple driver to dump specified values of UniPhier SoC
+	  from eFuse.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called nvmem-uniphier-efuse.
+
 config NVMEM_VF610_OCOTP
 	tristate "VF610 SoC OCOTP support"
 	depends on SOC_VF610 || COMPILE_TEST