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011f2c26f1
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
154 lines
3.7 KiB
Diff
154 lines
3.7 KiB
Diff
From e426c18fa0b44ddf9c059e4c0288fbcb0c1b7acf Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Mon, 2 Nov 2015 17:07:33 +0000
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Subject: [PATCH] drm/vc4: Enable VC4 modules, and increase CMA size with
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overlay
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If using the overlay, be careful not to boot to GUI or run startx,
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or the Pi will almost hang, reporting stalls in kernel threads.
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---
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arch/arm/boot/dts/overlays/README | 8 ++
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arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts | 95 ++++++++++++++++++++++
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arch/arm/configs/bcm2709_defconfig | 2 +
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arch/arm/configs/bcmrpi_defconfig | 2 +
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4 files changed, 107 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -601,6 +601,14 @@ Params: txd1_pin GPIO pi
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rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
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+Name: vc4-kms-v3d
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+Info: Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver. Running startx or
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+ booting to GUI while this overlay is in use will cause interesting
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+ lockups.
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+Load: dtoverlay=vc4-kms-v3d
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+Params: <None>
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+
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+
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Name: vga666
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Info: Overlay for the Fen Logic VGA666 board
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This uses GPIOs 2-21 (so no I2C), and activates the output 2-3 seconds
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/vc4-kms-v3d-overlay.dts
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@@ -0,0 +1,95 @@
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+/*
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+ * vc4-kms-v3d-overlay.dts
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+ */
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+
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+/dts-v1/;
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+/plugin/;
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+
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+#include "dt-bindings/clock/bcm2835.h"
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+#include "dt-bindings/gpio/gpio.h"
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+
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+/ {
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+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
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+
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+ fragment@0 {
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+ target = <&i2c2>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@1 {
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+ target = <&cprman>;
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+ __overlay__ {
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+ status = "okay";
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+ };
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+ };
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+
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+ fragment@2 {
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+ target = <&fb>;
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+ __overlay__ {
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+ status = "disabled";
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+ };
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+ };
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+
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+ fragment@3 {
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+ target = <&soc>;
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+ __overlay__ {
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+ #address-cells = <1>;
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+ #size-cells = <1>;
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+
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+ pixelvalve@7e206000 {
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+ compatible = "brcm,bcm2835-pixelvalve0";
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+ reg = <0x7e206000 0x100>;
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+ interrupts = <2 13>; /* pwa0 */
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+ };
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+
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+ pixelvalve@7e207000 {
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+ compatible = "brcm,bcm2835-pixelvalve1";
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+ reg = <0x7e207000 0x100>;
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+ interrupts = <2 14>; /* pwa1 */
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+ };
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+
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+ hvs@7e400000 {
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+ compatible = "brcm,bcm2835-hvs";
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+ reg = <0x7e400000 0x6000>;
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+ interrupts = <2 1>;
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+ };
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+
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+ pixelvalve@7e807000 {
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+ compatible = "brcm,bcm2835-pixelvalve2";
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+ reg = <0x7e807000 0x100>;
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+ interrupts = <2 10>; /* pixelvalve */
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+ };
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+
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+ hdmi@7e902000 {
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+ compatible = "brcm,bcm2835-hdmi";
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+ reg = <0x7e902000 0x600>,
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+ <0x7e808000 0x100>;
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+ interrupts = <2 8>, <2 9>;
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+ ddc = <&i2c2>;
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+ hpd-gpio = <&gpio 46 GPIO_ACTIVE_HIGH>;
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+ clocks = <&cprman BCM2835_PLLH_PIX>,
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+ <&cprman BCM2835_CLOCK_HSM>;
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+ clock-names = "pixel", "hdmi";
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+ };
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+
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+ v3d@7ec00000 {
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+ compatible = "brcm,vc4-v3d";
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+ reg = <0x7ec00000 0x1000>;
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+ interrupts = <1 10>;
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+ };
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+
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+ gpu@7e4c0000 {
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+ compatible = "brcm,bcm2835-vc4";
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+ };
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+ };
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+ };
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+
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+ fragment@4 {
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+ target-path = "/chosen";
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+ __overlay__ {
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+ bootargs = "cma=256M@512M";
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+ };
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+ };
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+};
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--- a/arch/arm/configs/bcm2709_defconfig
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+++ b/arch/arm/configs/bcm2709_defconfig
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@@ -802,6 +802,8 @@ CONFIG_VIDEO_TW9903=m
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CONFIG_VIDEO_TW9906=m
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CONFIG_VIDEO_OV7640=m
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CONFIG_VIDEO_MT9V011=m
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+CONFIG_DRM=m
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+CONFIG_DRM_VC4=m
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CONFIG_FB=y
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CONFIG_FB_BCM2708=y
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CONFIG_FB_UDL=m
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--- a/arch/arm/configs/bcmrpi_defconfig
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+++ b/arch/arm/configs/bcmrpi_defconfig
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@@ -795,6 +795,8 @@ CONFIG_VIDEO_TW9903=m
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CONFIG_VIDEO_TW9906=m
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CONFIG_VIDEO_OV7640=m
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CONFIG_VIDEO_MT9V011=m
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+CONFIG_DRM=m
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+CONFIG_DRM_VC4=m
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CONFIG_FB=y
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CONFIG_FB_BCM2708=y
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CONFIG_FB_UDL=m
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