arm64: tegra: Add support for Google Pixel C

Add initial device-tree support for Google Pixel C (a.k.a. Smaug) based
upon Tegra210 SoC with 3 GiB of LPDDR4 RAM.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Andrew Bresticker <abrestic@chromium.org>
Tested-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
index a7e865d..0f7cdf3 100644 (file)
--- a/arch/arm64/boot/dts/nvidia/Makefile
+++ b/arch/arm64/boot/dts/nvidia/Makefile
@@ -2,6 +2,7 @@ dtb-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra132-norrin.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-2180.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2571.dtb
+dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-smaug.dtb
 
 always         := $(dtb-y)
 clean-files    := *.dtb

diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
new file mode 100644 (file)
index 0000000..e687f68
--- /dev/null
+++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
@@ -0,0 +1,83 @@
+/dts-v1/;
+
+#include "tegra210.dtsi"
+
+/ {
+       model = "Google Pixel C";
+       compatible = "google,smaug-rev8", "google,smaug-rev7",
+                    "google,smaug-rev6", "google,smaug-rev5",
+                    "google,smaug-rev4", "google,smaug-rev3",
+                    "google,smaug-rev1", "google,smaug", "nvidia,tegra210";
+
+       aliases {
+               serial0 = &uarta;
+       };
+
+       chosen {
+               bootargs = "earlycon";
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0x0 0x80000000 0x0 0xc0000000>;
+       };
+
+       serial@70006000 {
+               status = "okay";
+       };
+
+       pmc@7000e400 {
+               nvidia,invert-interrupt;
+               nvidia,suspend-mode = <0>;
+               nvidia,cpu-pwr-good-time = <0>;
+               nvidia,cpu-pwr-off-time = <0>;
+               nvidia,core-pwr-good-time = <12000 6000>;
+               nvidia,core-pwr-off-time = <39053>;
+               nvidia,core-power-req-active-high;
+               nvidia,sys-clock-req-active-high;
+               status = "okay";
+       };
+
+       sdhci@700b0600 {
+               bus-width = <8>;
+               non-removable;
+               status = "okay";
+       };
+
+       clocks {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <0>;
+
+               clk32k_in: clock@0 {
+                       compatible = "fixed-clock";
+                       reg = <0>;
+                       #clock-cells = <0>;
+                       clock-frequency = <32768>;
+               };
+       };
+
+       cpus {
+               cpu@0 {
+                       enable-method = "psci";
+               };
+
+               cpu@1 {
+                       enable-method = "psci";
+               };
+
+               cpu@2 {
+                       enable-method = "psci";
+               };
+
+               cpu@3 {
+                       enable-method = "psci";
+               };
+       };
+
+       psci {
+               compatible = "arm,psci-1.0";
+               method = "smc";
+       };
+};