arm64: dts: sprd: Add Spreadtrum SD host controller support

Add one Spreadtrum SD host controller to support eMMC card for Spreadtrum
SC9860 platform.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

diff --git a/arch/arm64/boot/dts/sprd/whale2.dtsi b/arch/arm64/boot/dts/sprd/whale2.dtsi
index 4bb862c..79b9591 100644 (file)
--- a/arch/arm64/boot/dts/sprd/whale2.dtsi
+++ b/arch/arm64/boot/dts/sprd/whale2.dtsi
@@ -130,6 +130,34 @@
                                clock-names = "enable";
                                clocks = <&apahb_gate CLK_DMA_EB>;
                        };
+
+                       sdio3: sdio@50430000 {
+                               compatible  = "sprd,sdhci-r11";
+                               reg = <0 0x50430000 0 0x1000>;
+                               interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+
+                               clock-names = "sdio", "enable", "2x_enable";
+                               clocks = <&aon_prediv CLK_EMMC_2X>,
+                                      <&apahb_gate CLK_EMMC_EB>,
+                                      <&aon_gate CLK_EMMC_2X_EN>;
+                               assigned-clocks = <&aon_prediv CLK_EMMC_2X>;
+                               assigned-clock-parents = <&clk_l0_409m6>;
+
+                               sprd,phy-delay-mmc-hs400 = <0x44 0x7f 0x2e 0x2e>;
+                               sprd,phy-delay-mmc-hs200 = <0x0 0x8c 0x8c 0x8c>;
+                               sprd,phy-delay-mmc-ddr52 = <0x3f 0x75 0x14 0x14>;
+                               sprd,phy-delay-mmc-hs400es = <0x3f 0x3f 0x2e 0x2e>;
+                               vmmc-supply = <&vddemmccore>;
+                               bus-width = <8>;
+                               non-removable;
+                               no-sdio;
+                               no-sd;
+                               cap-mmc-hw-reset;
+                               mmc-hs400-enhanced-strobe;
+                               mmc-hs400-1_8v;
+                               mmc-hs200-1_8v;
+                               mmc-ddr-1_8v;
+                       };
                };
 
                aon {
@@ -272,4 +300,11 @@
                clock-frequency = <100000000>;
                clock-output-names = "ext-rco-100m";
        };
+
+       clk_l0_409m6: clk_l0_409m6 {
+               compatible = "fixed-clock";
+               #clock-cells = <0>;
+               clock-frequency = <409600000>;
+               clock-output-names = "ext-409m6";
+       };
 };