[PATCHv2 3/3] dts: socfpga: Add support for SD/MMC on the SOCFPGA platform

[<dinguyen-EIB2kfCEclfQT0dZR+AlfA@public.gmane.org>]

From: Dinh Nguyen <dinguyen-EIB2kfCEclfQT0dZR+AlfA@public.gmane.org>

Introduce "altr,socfpga-dw-mshc" to enable Altera's SOCFPGA platform specific
implementation of the dwc_mmc driver.

Also add the "syscon" binding to the "altr,sys-mgr" node. The clock
driver can use the syscon driver to toggle the register for the SD/MMC
clock phase shift settings.

Finally, fix an indentation error for the sysmgr node.

Signed-off-by: Dinh Nguyen <dinguyen-EIB2kfCEclfQT0dZR+AlfA@public.gmane.org>
Acked-by: Steffen Trumtrar <s.trumtrar-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Tested-by: Steffen Trumtrar <s.trumtrar-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Pawel Moll <pawel.moll-5wv7dgnIgG8@public.gmane.org>
Cc: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Ian Campbell <ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org>
Cc: Kumar Gala <galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Cc: Seungwon Jeon <tgih.jun-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Jaehoon Chung <jh80.chung-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Chris Ball <chris-OsFVWbfNK3isTnJN9+BGXg@public.gmane.org>
---
v2: Fix indentation for the sysmgr node
---
 .../devicetree/bindings/mmc/socfpga-dw-mshc.txt    |   23 ++++++++++++++++++++
 arch/arm/boot/dts/socfpga.dtsi                     |   15 +++++++++++--
 arch/arm/boot/dts/socfpga_arria5.dtsi              |   11 ++++++++++
 arch/arm/boot/dts/socfpga_cyclone5.dtsi            |   11 ++++++++++
 arch/arm/boot/dts/socfpga_vt.dts                   |   11 ++++++++++
 5 files changed, 69 insertions(+), 2 deletions(-)
 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..4897bea
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
@@ -0,0 +1,23 @@
+* 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 Altera SOCFPGA specific
+extensions to the Synopsys Designware Mobile Storage Host Controller.
+
+Required Properties:
+
+* compatible: should be
+	- "altr,socfpga-dw-mshc": for Altera's SOCFPGA platform
+
+Example:
+
+	mmc: dwmmc0@ff704000 {
+		compatible = "altr,socfpga-dw-mshc";
+		reg = <0xff704000 0x1000>;
+		interrupts = <0 129 4>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 3d62f47..eee73c9 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -474,6 +474,17 @@
 			arm,data-latency = <2 1 1>;
 		};
 
+		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>;
+			clock-names = "biu", "ciu";
+		};
+
 		/* Local timer */
 		timer@fffec600 {
 			compatible = "arm,cortex-a9-twd-timer";
@@ -528,8 +539,8 @@
 		};
 
 		sysmgr@ffd08000 {
-				compatible = "altr,sys-mgr";
-				reg = <0xffd08000 0x4000>;
+			compatible = "altr,sys-mgr", "syscon";
+			reg = <0xffd08000 0x4000>;
 			};
 	};
 };
diff --git a/arch/arm/boot/dts/socfpga_arria5.dtsi b/arch/arm/boot/dts/socfpga_arria5.dtsi
index a85b404..6c87b70 100644
--- a/arch/arm/boot/dts/socfpga_arria5.dtsi
+++ b/arch/arm/boot/dts/socfpga_arria5.dtsi
@@ -27,6 +27,17 @@
 			};
 		};
 
+		dwmmc0@ff704000 {
+			num-slots = <1>;
+			supports-highspeed;
+			broken-cd;
+
+			slot@0 {
+				reg = <0>;
+				bus-width = <4>;
+			};
+		};
+
 		serial0@ffc02000 {
 			clock-frequency = <100000000>;
 		};
diff --git a/arch/arm/boot/dts/socfpga_cyclone5.dtsi b/arch/arm/boot/dts/socfpga_cyclone5.dtsi
index a8716f6..ca41b0e 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5.dtsi
+++ b/arch/arm/boot/dts/socfpga_cyclone5.dtsi
@@ -28,6 +28,17 @@
 			};
 		};
 
+		dwmmc0@ff704000 {
+			num-slots = <1>;
+			supports-highspeed;
+			broken-cd;
+
+			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..222313f 100644
--- a/arch/arm/boot/dts/socfpga_vt.dts
+++ b/arch/arm/boot/dts/socfpga_vt.dts
@@ -41,6 +41,17 @@
 			};
 		};
 
+		dwmmc0@ff704000 {
+			num-slots = <1>;
+			supports-highspeed;
+			broken-cd;
+
+			slot@0 {
+				reg = <0>;
+				bus-width = <4>;
+			};
+		};
+
 		ethernet@ff700000 {
 			phy-mode = "gmii";
 			status = "okay";
-- 
1.7.9.5

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html