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@xxxxxxxxxx>
---
Changes v2 -> v3:
- Added PSCI information to enable all 4 CPUs on boot
Changes v1 -> v2:
- Removed console boot parameter and added stdout-path
- Added 32k clock for PMC
arch/arm64/boot/dts/nvidia/Makefile | 1 +
arch/arm64/boot/dts/nvidia/tegra210-smaug.dts | 83 +++++++++++++++++++++++++++
2 files changed, 84 insertions(+)
create mode 100644 arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
index a7e865da1005..0f7cdf3e05c1 100644
--- 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
index 000000000000..750e85c45135
--- /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@0,70006000 {
+ status = "okay";
+ };
+
+ pmc@0,7000e400 {
+ 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@0,700b0600 {
+ 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";
+ };
+};
--
2.1.4
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