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From c9d5ba0157fcfe48c0ec3448bdaecbabb8cefbca Mon Sep 17 00:00:00 2001
From: Alexey Brodkin <abrodkin@synopsys.com>
Date: Tue, 31 Jan 2017 19:02:44 +0300
Subject: [PATCH 2/3] 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: Alexey Brodkin <abrodkin@synopsys.com>
---
arch/arc/boot/dts/vdk_axs10x_mb.dtsi | 18 ++++++++++++++++++
arch/arc/configs/vdk_hs38_smp_defconfig | 5 ++++-
2 files changed, 22 insertions(+), 1 deletion(-)
diff --git a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
index 99498a4b4216..1953914b9f4f 100644
--- a/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/vdk_axs10x_mb.dtsi
@@ -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>;
+ };
};
};
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index 00036e814dc1..85c697a7ef1c 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -79,9 +79,12 @@ 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_EXT4_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_NTFS_FS=y
--
2.7.4
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