From: Dinh Nguyen <dinguyen@xxxxxxxxxx>
Add new bindings that support SD/MMC on Altera's SOCFPGA platform.
Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxx>
---
v3: none
v2: none
---
.../devicetree/bindings/mmc/socfpga-dw-mshc.txt | 38 ++++++++++++++++++++
arch/arm/boot/dts/socfpga.dtsi | 11 ++++++
arch/arm/boot/dts/socfpga_cyclone5.dtsi | 12 +++++++
arch/arm/boot/dts/socfpga_vt.dts | 12 +++++++
4 files changed, 73 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
diff --git a/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
new file mode 100644
index 0000000..c408e74
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
@@ -0,0 +1,38 @@
+* Altera SOCFPGA specific extensions to the Synopsys Designware Mobile
+ Storage Host Controller
+
+The Synopsys designware mobile storage host controller is used to interface
+a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
+differences between the core Synopsys dw mshc controller properties described
+by synopsys-dw-mshc.txt and the properties used by the SOCFPGA specific
+extensions to the Synopsys Designware Mobile Storage Host Controller.
+
+Required Properties:
+
+* compatible: should be
+ - "altr,socfpga-dw-mshc": for controllers with Altera SOCFPGA
+ specific extensions.
+
+* samsung,dw-mshc-sdr-timing: See exynos-dw-mshc.txt for more information about
+ this property.
+
+Example:
+ dwmmc0@ff704000 {
+ compatible = "altr,socfpga-dw-mshc", "snps,dw-mshc";
+ reg = <0xff704000 0x1000>;
+ interrupts = <0 139 4>;
+ fifo-depth = <0x400>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&l4_mp_clk>, <&sdmmc_clk>, <&sysmgr_sdr_mmc>;
+ clock-names = "biu", "ciu", "sysmgr-sdr-mmc";
+ num-slots = <1>;
+ supports-highspeed;
+ broken-cd;
+ samsung,dw-mshc-sdr-timing = <3 0>;
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index a6a13b3..5023e25 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -469,6 +469,17 @@
cache-level = <2>;
};
+ mmc: dwmmc0@ff704000 {
+ compatible = "altr,socfpga-dw-mshc";
+ reg = <0xff704000 0x1000>;
+ interrupts = <0 139 4>;
+ fifo-depth = <0x400>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&l4_mp_clk>, <&sdmmc_clk>, <&sysmgr_sdr_mmc>;
+ clock-names = "biu", "ciu", "sysmgr-sdr-mmc";
+ };
+
/* Local timer */
timer@fffec600 {
compatible = "arm,cortex-a9-twd-timer";
diff --git a/arch/arm/boot/dts/socfpga_cyclone5.dtsi b/arch/arm/boot/dts/socfpga_cyclone5.dtsi
index a8716f6..4ef4fa4 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5.dtsi
+++ b/arch/arm/boot/dts/socfpga_cyclone5.dtsi
@@ -28,6 +28,18 @@
};
};
+ dwmmc0@ff704000 {
+ num-slots = <1>;
+ supports-highspeed;
+ broken-cd;
+ samsung,dw-mshc-sdr-timing = <3 0>;
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
+
ethernet@ff702000 {
phy-mode = "rgmii";
phy-addr = <0xffffffff>; /* probe for phy addr */
diff --git a/arch/arm/boot/dts/socfpga_vt.dts b/arch/arm/boot/dts/socfpga_vt.dts
index d1ec0ca..25b2653 100644
--- a/arch/arm/boot/dts/socfpga_vt.dts
+++ b/arch/arm/boot/dts/socfpga_vt.dts
@@ -41,6 +41,18 @@
};
};
+ dwmmc0@ff704000 {
+ num-slots = <1>;
+ supports-highspeed;
+ broken-cd;
+ samsung,dw-mshc-sdr-timing = <3 0>;
+
+ slot@0 {
+ reg = <0>;
+ bus-width = <4>;
+ };
+ };
+
ethernet@ff700000 {
phy-mode = "gmii";
status = "okay";
--
1.7.9.5
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