[PATCH v2 1/2] ARM64: dts: rockchip: add sdhci/emmc for rk3399

Brian Norris
2016-05-12T22:37:24Z

Add description for the SDHCI v5.1 eMMC controller on rk3399. Fix it to
200 MHz, to support all supported timing modes.

Note that 'rockchip,rk3399-sdhci-5.1' is not documented; we presumably
have a compliant Arasan controller, but let's have a rockchip property
as the canonical backup/precautionary measure. Per Heiko's previous
suggestion, let's not clutter the arasan doc with it.

Signed-off-by: Brian Norris <briannorris@chromium.org>
---
v2:

* improved commit message
* assign eMMC clock to 200 MHz

arch/arm64/boot/dts/rockchip/rk3399.dtsi | 25 ++++++++++++++++++++++++-
1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index 46f325a143b0..9980c2eab4e9 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -215,6 +215,19 @@
status = "disabled";
};

+ sdhci: sdhci@fe330000 {
+ compatible = "rockchip,rk3399-sdhci-5.1", "arasan,sdhci-5.1";
+ reg = <0x0 0xfe330000 0x0 0x10000>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cru SCLK_EMMC>, <&cru ACLK_EMMC>;
+ clock-names = "clk_xin", "clk_ahb";
+ assigned-clocks = <&cru SCLK_EMMC>;
+ assigned-clock-rates = <200000000>;
+ phys = <&emmc_phy>;
+ phy-names = "phy_arasan";
+ status = "disabled";
+ };
+
usb_host0_ehci: usb@fe380000 {
compatible = "generic-ehci";
reg = <0x0 0xfe380000 0x0 0x20000>;
@@ -481,8 +494,18 @@
};

grf: syscon@ff770000 {
- compatible = "rockchip,rk3399-grf", "syscon";
+ compatible = "rockchip,rk3399-grf", "syscon", "simple-mfd";
reg = <0x0 0xff770000 0x0 0x10000>;
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ emmc_phy: phy@f780 {
+ compatible = "rockchip,rk3399-emmc-phy";
+ reg = <0xf780 0x20>;
+ #phy-cells = <0>;
+ status = "disabled";
+ };
};

watchdog@ff840000 {
--
2.8.0.rc3.226.g39d4020