overlays: Add overlay to run an upstream kernel

arch/arm/boot/dts/overlays/Makefile

@@ -123,6 +123,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	tinylcd35.dtbo \
 	uart0.dtbo \
 	uart1.dtbo \
+	upstream.dtbo \
 	upstream-aux-interrupt.dtbo \
 	vc4-fkms-v3d.dtbo \
 	vc4-kms-v3d.dtbo \

arch/arm/boot/dts/overlays/README

@@ -1737,6 +1737,25 @@ Load:   dtoverlay=upstream-aux-interrupt
 Params: <None>
 
 
+Name:   upstream
+Info:   Allow usage of downstream .dtb with upstream kernel. Apply this if
+        you want to run an upstream kernel.
+        This overlay combines the dwc2, vc4-kms-v3d and upstream-aux-interrupt
+        overlays into one convenience overlay.
+Load:   dtoverlay=upstream,<param>
+Params: --- from dwc2 ---
+        dr_mode                 Dual role mode: "host", "peripheral" or "otg"
+        g-rx-fifo-size          Size of rx fifo size in gadget mode
+        g-np-tx-fifo-size       Size of non-periodic tx fifo size in gadget
+                                mode
+        --- from vc4-kms-v3d ---
+        cma-256                 CMA is 256MB, 256MB-aligned (needs 1GB)
+        cma-192                 CMA is 192MB, 256MB-aligned (needs 1GB)
+        cma-128                 CMA is 128MB, 128MB-aligned
+        cma-96                  CMA is 96MB, 128MB-aligned
+        cma-64                  CMA is 64MB, 64MB-aligned
+
+
 Name:   vc4-fkms-v3d
 Info:   Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx
         display stack.

arch/arm/boot/dts/overlays/upstream-overlay.dts

@@ -0,0 +1,164 @@
+// redo: ovmerge -c vc4-kms-v3d-overlay.dts dwc2-overlay.dts upstream-aux-interrupt-overlay.dts
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/clock/bcm2835.h>
+
+/ {
+	compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
+	fragment@0 {
+		target-path = "/chosen";
+		__overlay__ {
+			bootargs = "cma=256M";
+		};
+	};
+	fragment@1 {
+		target-path = "/chosen";
+		__dormant__ {
+			bootargs = "cma=192M";
+		};
+	};
+	fragment@2 {
+		target-path = "/chosen";
+		__dormant__ {
+			bootargs = "cma=128M";
+		};
+	};
+	fragment@3 {
+		target-path = "/chosen";
+		__dormant__ {
+			bootargs = "cma=96M";
+		};
+	};
+	fragment@4 {
+		target-path = "/chosen";
+		__dormant__ {
+			bootargs = "cma=64M";
+		};
+	};
+	fragment@5 {
+		target = <&i2c2>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+	fragment@6 {
+		target = <&fb>;
+		__overlay__ {
+			status = "disabled";
+		};
+	};
+	fragment@7 {
+		target = <&pixelvalve0>;
+		__overlay__ {
+			interrupts = <2 13>;
+			status = "okay";
+		};
+	};
+	fragment@8 {
+		target = <&pixelvalve1>;
+		__overlay__ {
+			interrupts = <2 14>;
+			status = "okay";
+		};
+	};
+	fragment@9 {
+		target = <&pixelvalve2>;
+		__overlay__ {
+			interrupts = <2 10>;
+			status = "okay";
+		};
+	};
+	fragment@10 {
+		target = <&hvs>;
+		__overlay__ {
+			interrupts = <2 1>;
+			status = "okay";
+		};
+	};
+	fragment@11 {
+		target = <&hdmi>;
+		__overlay__ {
+			interrupts = <2 8>, <2 9>;
+			status = "okay";
+		};
+	};
+	fragment@12 {
+		target = <&v3d>;
+		__overlay__ {
+			interrupts = <1 10>;
+			status = "okay";
+		};
+	};
+	fragment@13 {
+		target = <&vc4>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+	fragment@14 {
+		target-path = "/soc/dma";
+		__overlay__ {
+			brcm,dma-channel-mask = <0x7f35>;
+		};
+	};
+	fragment@15 {
+		target = <&clocks>;
+		__overlay__ {
+			claim-clocks = <BCM2835_PLLD_DSI0 BCM2835_PLLD_DSI1 BCM2835_PLLH_AUX BCM2835_PLLH_PIX>;
+		};
+	};
+	fragment@16 {
+		target = <&vec>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+	fragment@17 {
+		target = <&usb>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		dwc2_usb: __overlay__ {
+			compatible = "brcm,bcm2835-usb";
+			reg = <0x7e980000 0x10000>;
+			interrupts = <1 9>;
+			dr_mode = "otg";
+			g-np-tx-fifo-size = <32>;
+			g-rx-fifo-size = <256>;
+			g-tx-fifo-size = <512 512 512 512 512 768>;
+			status = "okay";
+		};
+	};
+	fragment@18 {
+		target = <&uart1>;
+		__overlay__ {
+			interrupt-parent = <&intc>;
+			interrupts = <0x1 0x1d>;
+		};
+	};
+	fragment@19 {
+		target = <&spi1>;
+		__overlay__ {
+			interrupt-parent = <&intc>;
+			interrupts = <0x1 0x1d>;
+		};
+	};
+	fragment@20 {
+		target = <&spi2>;
+		__overlay__ {
+			interrupt-parent = <&intc>;
+			interrupts = <0x1 0x1d>;
+		};
+	};
+	__overrides__ {
+		cma-256 = <0>, "+0-1-2-3-4";
+		cma-192 = <0>, "-0+1-2-3-4";
+		cma-128 = <0>, "-0-1+2-3-4";
+		cma-96 = <0>, "-0-1-2+3-4";
+		cma-64 = <0>, "-0-1-2-3+4";
+		dr_mode = <&dwc2_usb>, "dr_mode";
+		g-np-tx-fifo-size = <&dwc2_usb>, "g-np-tx-fifo-size:0";
+		g-rx-fifo-size = <&dwc2_usb>, "g-rx-fifo-size:0";
+	};
+};