From: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
According to the documents, the i.MX8M-Mini features a GC320 and a
GCNanoUltra GPU core. Etnaviv detects them as:
etnaviv-gpu 38000000.gpu: model: GC600, revision: 4653
etnaviv-gpu 38008000.gpu: model: GC520, revision: 5341
This seems to work fine more or less without any changes to the HWDB,
which still might be needed in the future to correct some features,
etc.
[lst]: Added power domains and switched clock assignments to the
new clock defines used for the composite clocks, instead of
relying on the backwards compat defines.
Signed-off-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx>
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
This patch depends on the power domain support for i.MX8MM, as the
GPUs are in a invalid state (which might lead to full system lockups)
if they are not properly powered on via the power sequencing
implemented in the GPCv2 driver.
---
arch/arm64/boot/dts/freescale/imx8mm.dtsi | 39 +++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index ab379d02d4e4..2f5812763315 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -1012,6 +1012,45 @@
status = "disabled";
};
+ gpu_3d: gpu@38000000 {
+ compatible = "vivante,gc";
+ reg = <0x38000000 0x8000>;
+ interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MM_CLK_GPU_AHB>,
+ <&clk IMX8MM_CLK_GPU_BUS_ROOT>,
+ <&clk IMX8MM_CLK_GPU3D_ROOT>,
+ <&clk IMX8MM_CLK_GPU3D_ROOT>;
+ clock-names = "reg", "bus", "core", "shader";
+ assigned-clocks = <&clk IMX8MM_CLK_GPU3D_CORE>,
+ <&clk IMX8MM_CLK_GPU_AXI>,
+ <&clk IMX8MM_CLK_GPU_AHB>,
+ <&clk IMX8MM_GPU_PLL_OUT>;
+ assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>,
+ <&clk IMX8MM_SYS_PLL1_800M>,
+ <&clk IMX8MM_SYS_PLL1_800M>;
+ assigned-clock-rates = <0>, <0>,<400000000>,<1000000000>;
+ power-domains = <&pgc_gpu>;
+ };
+
+ gpu_2d: gpu@38008000 {
+ compatible = "vivante,gc";
+ reg = <0x38008000 0x8000>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MM_CLK_GPU_AHB>,
+ <&clk IMX8MM_CLK_GPU_BUS_ROOT>,
+ <&clk IMX8MM_CLK_GPU2D_ROOT>;
+ clock-names = "reg", "bus", "core";
+ assigned-clocks = <&clk IMX8MM_CLK_GPU2D_CORE>,
+ <&clk IMX8MM_CLK_GPU_AXI>,
+ <&clk IMX8MM_CLK_GPU_AHB>,
+ <&clk IMX8MM_GPU_PLL_OUT>;
+ assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>,
+ <&clk IMX8MM_SYS_PLL1_800M>,
+ <&clk IMX8MM_SYS_PLL1_800M>;
+ assigned-clock-rates = <0>, <0>,<400000000>,<1000000000>;
+ power-domains = <&pgc_gpu>;
+ };
+
gic: interrupt-controller@38800000 {
compatible = "arm,gic-v3";
reg = <0x38800000 0x10000>, /* GIC Dist */
--
2.20.1
