mmc: uniphier-sd: Add support for R8A7795 and R7A7796

Add OF match entries and quirks for Renesas RCar Gen3 controllers
into the driver. The IP this driver handles is in fact Matsushita
one and in used both in Socionext and Renesas chips.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>

drivers/mmc/Kconfig

@@ -162,12 +162,13 @@ config SH_SDHI
 	  Support for the on-chip SDHI host controller on SuperH/Renesas ARM SoCs platform
 
 config MMC_UNIPHIER
-	bool "UniPhier SD/MMC Host Controller support"
-	depends on ARCH_UNIPHIER
+	bool "UniPhier/RCar SD/MMC Host Controller support"
+	depends on ARCH_UNIPHIER || ARCH_RMOBILE
 	depends on BLK && DM_MMC
 	depends on OF_CONTROL
 	help
-	  This selects support for the SD/MMC Host Controller on UniPhier SoCs.
+	  This selects support for the Matsushita SD/MMC Host Controller on
+	  SocioNext UniPhier and Renesas RCar SoCs.
 
 config MMC_SANDBOX
 	bool "Sandbox MMC support"

drivers/mmc/uniphier-sd.c

@@ -833,6 +833,8 @@ static int uniphier_sd_probe(struct udevice *dev)
 }
 
 static const struct udevice_id uniphier_sd_match[] = {
+	{ .compatible = "renesas,sdhi-r8a7795", .data = UNIPHIER_SD_CAP_64BIT },
+	{ .compatible = "renesas,sdhi-r8a7796", .data = UNIPHIER_SD_CAP_64BIT },
 	{ .compatible = "socionext,uniphier-sdhc", .data = 0 },
 	{ /* sentinel */ }
 };