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 <[email protected]>
---
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

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