mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
83 lines
2.4 KiB
Diff
83 lines
2.4 KiB
Diff
|
From 8134311059a478a79f7c9c9d08163bafa972fd39 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Alexander Graf <agraf@suse.de>
|
||
|
|
Date: Tue, 20 Feb 2018 17:36:21 +0100
|
||
|
|
Subject: [PATCH 226/454] overlays: Add overlay for missing AUX interrupt
|
||
|
|
controller support (#2391)
|
||
|
|
|
||
|
|
Upstream Linux today does not support the AUX interrupt controller
|
||
|
|
yet. To make sure it can use our device tree, add an overlay that
|
||
|
|
reverts it to something upstream understands again.
|
||
|
|
|
||
|
|
See: https://github.com/raspberrypi/firmware/issues/943
|
||
|
|
|
||
|
|
Signed-off-by: Alexander Graf <agraf@suse.de>
|
||
|
|
---
|
||
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
||
|
|
arch/arm/boot/dts/overlays/README | 7 ++++
|
||
|
|
.../upstream-aux-interrupt-overlay.dts | 33 +++++++++++++++++++
|
||
|
|
3 files changed, 41 insertions(+)
|
||
|
|
create mode 100644 arch/arm/boot/dts/overlays/upstream-aux-interrupt-overlay.dts
|
||
|
|
|
||
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
||
|
|
@@ -122,6 +122,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
|
||
|
|
tinylcd35.dtbo \
|
||
|
|
uart0.dtbo \
|
||
|
|
uart1.dtbo \
|
||
|
|
+ upstream-aux-interrupt.dtbo \
|
||
|
|
vc4-fkms-v3d.dtbo \
|
||
|
|
vc4-kms-v3d.dtbo \
|
||
|
|
vga666.dtbo \
|
||
|
|
--- a/arch/arm/boot/dts/overlays/README
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
||
|
|
@@ -1721,6 +1721,13 @@ Params: txd1_pin GPIO pin
|
||
|
|
rxd1_pin GPIO pin for RXD1 (15, 33 or 41 - default 15)
|
||
|
|
|
||
|
|
|
||
|
|
+Name: upstream-aux-interrupt
|
||
|
|
+Info: Allow usage of downstream .dtb with upstream kernel by binding AUX
|
||
|
|
+ devices directly to the shared AUX interrupt line.
|
||
|
|
+Load: dtoverlay=upstream-aux-interrupt
|
||
|
|
+Params: <None>
|
||
|
|
+
|
||
|
|
+
|
||
|
|
Name: vc4-fkms-v3d
|
||
|
|
Info: Enable Eric Anholt's DRM VC4 V3D driver on top of the dispmanx
|
||
|
|
display stack.
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/upstream-aux-interrupt-overlay.dts
|
||
|
|
@@ -0,0 +1,33 @@
|
||
|
|
+// Overlay for missing AUX interrupt controller
|
||
|
|
+// Instead we bind all AUX devices to the generic AUX interrupt line
|
||
|
|
+/dts-v1/;
|
||
|
|
+/plugin/;
|
||
|
|
+
|
||
|
|
+/ {
|
||
|
|
+ compatible = "brcm,bcm2708";
|
||
|
|
+
|
||
|
|
+ fragment@0 {
|
||
|
|
+ target = <&uart1>;
|
||
|
|
+ __overlay__ {
|
||
|
|
+ interrupt-parent = <&intc>;
|
||
|
|
+ interrupts = <0x1 0x1d>;
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+
|
||
|
|
+ fragment@1 {
|
||
|
|
+ target = <&spi1>;
|
||
|
|
+ __overlay__ {
|
||
|
|
+ interrupt-parent = <&intc>;
|
||
|
|
+ interrupts = <0x1 0x1d>;
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+
|
||
|
|
+ fragment@2 {
|
||
|
|
+ target = <&spi2>;
|
||
|
|
+ __overlay__ {
|
||
|
|
+ interrupt-parent = <&intc>;
|
||
|
|
+ interrupts = <0x1 0x1d>;
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+};
|
||
|
|
+
|