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Commit d9174e72 authored by Alexey Brodkin's avatar Alexey Brodkin Committed by Vineet Gupta
Browse files

arc: vdk: Add support of MMC controller 



ARC VDK virtual platform emulates host MMC controller (DW Mobile Storage)
and moreover rootfs is situated on that virtual card.

Signed-off-by: default avatarAlexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 91447ec9

arch/arc/boot/dts/vdk_axs10x_mb.dtsi

+18 −0
Original line number Diff line number Diff line
@@ -23,6 +23,12 @@ 
				#clock-cells = <0>;

			};



			mmcclk: mmcclk {

				compatible = "fixed-clock";

				clock-frequency = <50000000>;

				#clock-cells = <0>;

			};



			pguclk: pguclk {

				#clock-cells = <0>;

				compatible = "fixed-clock";
@@ -94,5 +100,17 @@ 
			interrupts = <5>;

			interrupt-names = "arc_ps2_irq";

		};



		mmc@0x15000 {

			compatible = "snps,dw-mshc";

			reg = <0x15000 0x400>;

			num-slots = <1>;

			fifo-depth = <1024>;

			card-detect-delay = <200>;

			clocks = <&apbclk>, <&mmcclk>;

			clock-names = "biu", "ciu";

			interrupts = <7>;

			bus-width = <4>;

		};

	};

};

arch/arc/configs/vdk_hs38_smp_defconfig

+4 −0
Original line number Diff line number Diff line
@@ -78,6 +78,10 @@ CONFIG_USB_OHCI_HCD=y 
CONFIG_USB_OHCI_HCD_PLATFORM=y

CONFIG_USB_STORAGE=y

CONFIG_USB_SERIAL=y

CONFIG_MMC=y

CONFIG_MMC_SDHCI=y

CONFIG_MMC_SDHCI_PLTFM=y

CONFIG_MMC_DW=y

# CONFIG_IOMMU_SUPPORT is not set

CONFIG_EXT3_FS=y

CONFIG_MSDOS_FS=y