There is a power domain controller on the i.XM8M Mini used for
handling interrupts and controlling certain peripherals like
USB OTG and PCIe, which are currently unavailable.
This patch enables support the controller itself to the help
facilitate enabling additional peripherals.
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
---
V2: Removed references making GPC an interrupt controller.
arch/arm64/boot/dts/freescale/imx8mm.dtsi | 78 +++++++++++++++++++++++
1 file changed, 78 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 23c8fad7932b..f38bed94bce2 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -4,6 +4,7 @@
*/
#include <dt-bindings/clock/imx8mm-clock.h>
+#include <dt-bindings/power/imx8m-power.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
@@ -495,6 +496,83 @@
interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
#reset-cells = <1>;
};
+
+ gpc: gpc@303a0000 {
+ compatible = "fsl,imx8mm-gpc";
+ reg = <0x303a0000 0x10000>;
+ interrupt-parent = <&gic>;
+ interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
+
+ pgc {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pgc_mipi: power-domain@0 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_MIPI>;
+ };
+
+ pgc_pcie: power-domain@1 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_PCIE>;
+ };
+
+ pgc_otg1: power-domain@2 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_USB_OTG1>;
+ };
+
+ pgc_otg2: power-domain@3 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_USB_OTG2>;
+ };
+
+ pgc_ddr1: power-domain@4 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_DDR1>;
+ };
+
+ pgc_gpu2d: power-domain@5 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_GPU2D>;
+ };
+
+ pgc_gpu: power-domain@6 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_GPU>;
+ };
+
+ pgc_vpu: power-domain@7 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_VPU>;
+ };
+
+ pgc_gpu3d: power-domain@8 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_GPU3D>;
+ };
+
+ pgc_disp: power-domain@9 {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_DOMAIN_DISP>;
+ };
+
+ pgc_vpu_g1: power-domain@a {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_VPU_G1>;
+ };
+
+ pgc_vpu_g2: power-domain@b {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_VPU_G2>;
+ };
+
+ pgc_vpu_h1: power-domain@c {
+ #power-domain-cells = <0>;
+ reg = <IMX8MM_POWER_VPU_H1>;
+ };
+ };
+ };
};
aips2: bus@30400000 {
--
2.20.1
