According to the documentation from NXP, the i.MX8M Nano has a Vivante GC7000 Ultra Lite as its GPU core.
With this patch, the Etnaviv driver presents the GPU as: etnaviv-gpu 38000000.gpu: model: GC7000, revision: 6203 It uses the GPCV2 controller to enable the power domain for the GPU. Signed-off-by: Adam Ford <aford...@gmail.com> --- This patch depends on a series located: https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=368903 and diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi index 605e6dbd2c6f..62c8cd3dea7c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi @@ -4,6 +4,8 @@ */ #include <dt-bindings/clock/imx8mn-clock.h> +#include <dt-bindings/power/imx8mn-power.h> +#include <dt-bindings/reset/imx8mq-reset.h> #include <dt-bindings/gpio/gpio.h> #include <dt-bindings/input/input.h> #include <dt-bindings/interrupt-controller/arm-gic.h> @@ -1019,6 +1021,31 @@ gpmi: nand-controller@33002000 { status = "disabled"; }; + gpu: gpu@38000000 { + compatible = "vivante,gc"; + reg = <0x38000000 0x8000>; + interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clk IMX8MN_CLK_GPU_AHB>, + <&clk IMX8MN_CLK_GPU_BUS_ROOT>, + <&clk IMX8MN_CLK_GPU_CORE_ROOT>, + <&clk IMX8MN_CLK_GPU_SHADER_DIV>; + clock-names = "reg", "bus", "core", "shader"; + assigned-clocks = <&clk IMX8MN_CLK_GPU_CORE_SRC>, + <&clk IMX8MN_CLK_GPU_SHADER_SRC>, + <&clk IMX8MN_CLK_GPU_AXI>, + <&clk IMX8MN_CLK_GPU_AHB>, + <&clk IMX8MN_GPU_PLL>, + <&clk IMX8MN_CLK_GPU_CORE_DIV>, + <&clk IMX8MN_CLK_GPU_SHADER_DIV>; + assigned-clock-parents = <&clk IMX8MN_GPU_PLL_OUT>, + <&clk IMX8MN_GPU_PLL_OUT>, + <&clk IMX8MN_SYS_PLL1_800M>, + <&clk IMX8MN_SYS_PLL1_800M>; + assigned-clock-rates = <0>, <0>, <800000000>, <400000000>, <1200000000>, + <400000000>, <400000000>; + power-domains = <&pgc_gpumix>; + }; + gic: interrupt-controller@38800000 { compatible = "arm,gic-v3"; reg = <0x38800000 0x10000>, -- 2.25.1
