ARM: mmc: bcm281xx SDHCI driver (dt mods)

Add SDHCI bindings for the Broadcom 281xx SoCs.

Changes from V2:
 - Documentation cleanups

Changes from V1:
 - split original patch into 2, one for driver and this one for dt

Signed-off-by: Christian Daudt <csd@broadcom.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

3 files changed, 61 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mmc/bcm,kona-sdhci.txt b/Documentation/devicetree/bindings/mmc/bcm,kona-sdhci.txt
new file mode 100644
index 000000000000..094ae010f2fb
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/bcm,kona-sdhci.txt
@@ -0,0 +1,16 @@
+Broadcom BCM281xx SDHCI
+
+This file documents differences between the core properties in mmc.txt
+and the properties present in the bcm281xx SDHCI
+
+Required properties:
+- compatible : Should be "bcm,kona-sdhci"
+
+Example:
+
+sdio2: sdio@0x3f1a0000 {
+        compatible = "bcm,kona-sdhci";
+        reg = <0x3f1a0000 0x10000>;
+        interrupts = <0x0 74 0x4>;
+};
+
diff --git a/arch/arm/boot/dts/bcm11351-brt.dts b/arch/arm/boot/dts/bcm11351-brt.dts
index 3392f64c34ae..67ec524098b5 100644
--- a/arch/arm/boot/dts/bcm11351-brt.dts
+++ b/arch/arm/boot/dts/bcm11351-brt.dts
@@ -27,4 +27,21 @@
                 status = "okay";
         };
 
+        sdio0: sdio@0x3f180000 {
+                max-frequency = <48000000>;
+                status = "okay";
+        };
+
+        sdio1: sdio@0x3f190000 {
+                non-removable;
+                max-frequency = <48000000>;
+                status = "okay";
+        };
+
+        sdio3: sdio@0x3f1b0000 {
+                max-frequency = <48000000>;
+                status = "okay";
+        };
+
+
 };
diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi
index 824bebe90c63..c7944530d2c0 100644
--- a/arch/arm/boot/dts/bcm11351.dtsi
+++ b/arch/arm/boot/dts/bcm11351.dtsi
@@ -63,4 +63,32 @@
                 clock-frequency = <32768>;
         };
 
+        sdio0: sdio@0x3f180000 {
+                compatible = "bcm,kona-sdhci";
+                reg = <0x3f180000 0x10000>;
+                interrupts = <0x0 77 0x4>;
+                status = "disabled";
+        };
+
+        sdio1: sdio@0x3f190000 {
+                compatible = "bcm,kona-sdhci";
+                reg = <0x3f190000 0x10000>;
+                interrupts = <0x0 76 0x4>;
+                status = "disabled";
+        };
+
+        sdio2: sdio@0x3f1a0000 {
+                compatible = "bcm,kona-sdhci";
+                reg = <0x3f1a0000 0x10000>;
+                interrupts = <0x0 74 0x4>;
+                status = "disabled";
+        };
+
+        sdio3: sdio@0x3f1b0000 {
+                compatible = "bcm,kona-sdhci";
+                reg = <0x3f1b0000 0x10000>;
+                interrupts = <0x0 73 0x4>;
+                status = "disabled";
+        };
+
 };