From: Thierry Reding <treding@xxxxxxxxxx>
Add the framebuffer carveout reserved memory node as well as a simple-
framebuffer node that is used to bind to the framebuffer that the
bootloader has set up.
Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
Changes in v2:
- clear out dynamic fields and leave it up to firmware to fill them in
- mark simple-framebuffer node as disabled by default
.../nvidia/tegra194-p3509-0000+p3668-0001.dts | 43 +++++++++++++++++++
arch/arm64/boot/dts/nvidia/tegra194.dtsi | 2 +-
2 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts b/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts
index 238fd98e8e45..85b4aaa2ad4e 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra194-p3509-0000+p3668-0001.dts
@@ -7,4 +7,47 @@
/ {
model = "NVIDIA Jetson Xavier NX Developer Kit (eMMC)";
compatible = "nvidia,p3509-0000+p3668-0001", "nvidia,tegra194";
+
+ chosen {
+ framebuffer {
+ compatible = "simple-framebuffer";
+ status = "disabled";
+ memory-region = <&fb>;
+ power-domains = <&bpmp TEGRA194_POWER_DOMAIN_DISP>;
+ clocks = <&bpmp TEGRA194_CLK_SOR1_REF>,
+ <&bpmp TEGRA194_CLK_SOR1_OUT>,
+ <&bpmp TEGRA194_CLK_SOR1_PAD_CLKOUT>,
+ <&bpmp TEGRA194_CLK_PLLD2>,
+ <&bpmp TEGRA194_CLK_PLLDP>,
+ <&bpmp TEGRA194_CLK_NVDISPLAY_DISP>,
+ <&bpmp TEGRA194_CLK_NVDISPLAYHUB>,
+ <&bpmp TEGRA194_CLK_NVDISPLAY_P0>;
+ width = <0>;
+ height = <0>;
+ stride = <0>;
+ format = "x8b8g8r8";
+ };
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ fb: framebuffer@0,0 {
+ compatible = "framebuffer";
+ reg = <0x0 0x0 0x0 0x0>;
+ iommu-addresses = <&dc0 0x0 0x0 0x0 0x0>;
+ };
+ };
+
+ bus@0 {
+ host1x@13e00000 {
+ display-hub@15200000 {
+ display@15200000 {
+ memory-region = <&fb>;
+ };
+ };
+ };
+ };
};
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index d0dbfafbc930..ec318b9e700c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1972,7 +1972,7 @@ display-hub@15200000 {
ranges = <0x15200000 0x15200000 0x40000>;
- display@15200000 {
+ dc0: display@15200000 {
compatible = "nvidia,tegra194-dc";
reg = <0x15200000 0x10000>;
interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>;
--
2.38.1
