mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
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>
190 lines
4.7 KiB
Diff
190 lines
4.7 KiB
Diff
From 5395497a794d793f9657e3317634ad8e5003277f Mon Sep 17 00:00:00 2001
|
|
From: Eric Anholt <eric@anholt.net>
|
|
Date: Wed, 14 Sep 2016 08:52:26 +0100
|
|
Subject: [PATCH] BCM270X: Add an overlay for enabling the vc4 driver in
|
|
firmware-KMS mode.
|
|
|
|
This gets us normal 3D support on top of the existing firmware display
|
|
stack. There's no real modesetting support, no async pageflips
|
|
(hurting performance), etc., but it means that the desktop can at
|
|
least run until we get full native modesetting.
|
|
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
|
---
|
|
arch/arm/boot/dts/bcm2708_common.dtsi | 31 +++++---
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
|
arch/arm/boot/dts/overlays/README | 11 +++
|
|
.../arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts | 89 ++++++++++++++++++++++
|
|
4 files changed, 121 insertions(+), 11 deletions(-)
|
|
create mode 100644 arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts
|
|
|
|
--- a/arch/arm/boot/dts/bcm2708_common.dtsi
|
|
+++ b/arch/arm/boot/dts/bcm2708_common.dtsi
|
|
@@ -284,6 +284,26 @@
|
|
status = "disabled";
|
|
};
|
|
|
|
+ firmwarekms: firmwarekms@7e600000 {
|
|
+ compatible = "raspberrypi,rpi-firmware-kms";
|
|
+ /* SMI interrupt reg */
|
|
+ reg = <0x7e600000 0x100>;
|
|
+ interrupts = <2 16>;
|
|
+ brcm,firmware = <&firmware>;
|
|
+ status = "disabled";
|
|
+ };
|
|
+
|
|
+ smi: smi@7e600000 {
|
|
+ compatible = "brcm,bcm2835-smi";
|
|
+ reg = <0x7e600000 0x44>, <0x7e1010b0 0x8>;
|
|
+ interrupts = <2 16>;
|
|
+ brcm,smi-clock-source = <6>;
|
|
+ brcm,smi-clock-divisor = <4>;
|
|
+ dmas = <&dma 4>;
|
|
+ dma-names = "rx-tx";
|
|
+ status = "disabled";
|
|
+ };
|
|
+
|
|
dsi1: dsi@7e700000 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
@@ -325,17 +345,6 @@
|
|
status = "disabled";
|
|
};
|
|
|
|
- smi: smi@7e600000 {
|
|
- compatible = "brcm,bcm2835-smi";
|
|
- reg = <0x7e600000 0x44>, <0x7e1010b0 0x8>;
|
|
- interrupts = <2 16>;
|
|
- brcm,smi-clock-source = <6>;
|
|
- brcm,smi-clock-divisor = <4>;
|
|
- dmas = <&dma 4>;
|
|
- dma-names = "rx-tx";
|
|
- status = "disabled";
|
|
- };
|
|
-
|
|
pixelvalve2: pixelvalve@7e807000 {
|
|
compatible = "brcm,bcm2835-pixelvalve2";
|
|
reg = <0x7e807000 0x100>;
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
|
@@ -96,6 +96,7 @@ dtbo-$(RPI_DT_OVERLAYS) += spi2-2cs.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += spi2-3cs.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += tinylcd35.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += uart1.dtbo
|
|
+dtbo-$(RPI_DT_OVERLAYS) += vc4-fkms-v3d.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += vc4-kms-v3d.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += vga666.dtbo
|
|
dtbo-$(RPI_DT_OVERLAYS) += w1-gpio.dtbo
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -1215,6 +1215,17 @@ Params: txd1_pin GPIO pin
|
|
rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
|
|
|
|
|
|
+Name: vc4-fkms-v3d
|
|
+Info: Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx
|
|
+ display stack.
|
|
+Load: dtoverlay=vc4-fkms-v3d,<param>
|
|
+Params: 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-kms-v3d
|
|
Info: Enable Eric Anholt's DRM VC4 HDMI/HVS/V3D driver. Running startx or
|
|
booting to GUI while this overlay is in use will cause interesting
|
|
--- /dev/null
|
|
+++ b/arch/arm/boot/dts/overlays/vc4-fkms-v3d-overlay.dts
|
|
@@ -0,0 +1,89 @@
|
|
+/*
|
|
+ * vc4-fkms-v3d-overlay.dts
|
|
+ */
|
|
+
|
|
+/dts-v1/;
|
|
+/plugin/;
|
|
+
|
|
+/ {
|
|
+ compatible = "brcm,bcm2835", "brcm,bcm2708", "brcm,bcm2709";
|
|
+
|
|
+ fragment@0 {
|
|
+ target-path = "/chosen";
|
|
+ __overlay__ {
|
|
+ bootargs = "cma=256M@256M";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@1 {
|
|
+ target-path = "/chosen";
|
|
+ __dormant__ {
|
|
+ bootargs = "cma=192M@256M";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@2 {
|
|
+ target-path = "/chosen";
|
|
+ __dormant__ {
|
|
+ bootargs = "cma=128M@128M";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@3 {
|
|
+ target-path = "/chosen";
|
|
+ __dormant__ {
|
|
+ bootargs = "cma=96M@128M";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@4 {
|
|
+ target-path = "/chosen";
|
|
+ __dormant__ {
|
|
+ bootargs = "cma=64M@64M";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@5 {
|
|
+ target = <&fb>;
|
|
+ __overlay__ {
|
|
+ status = "disabled";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@6 {
|
|
+ target = <&firmwarekms>;
|
|
+ __overlay__ {
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@7 {
|
|
+ target = <&v3d>;
|
|
+ __overlay__ {
|
|
+ interrupts = <1 10>;
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@8 {
|
|
+ target = <&gpu>;
|
|
+ __overlay__ {
|
|
+ status = "okay";
|
|
+ };
|
|
+ };
|
|
+
|
|
+ fragment@9 {
|
|
+ target-path = "/soc/dma";
|
|
+ __overlay__ {
|
|
+ brcm,dma-channel-mask = <0x7f35>;
|
|
+ };
|
|
+ };
|
|
+
|
|
+ __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";
|
|
+ };
|
|
+};
|