mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 18:47:06 +00:00
73 lines
2.1 KiB
Diff
73 lines
2.1 KiB
Diff
|
From 2f1c8eedc108d458fb2566ec582cbd7c45fc280b Mon Sep 17 00:00:00 2001
|
||
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
||
|
|
Date: Wed, 12 Jan 2022 12:48:53 +0000
|
||
|
|
Subject: [PATCH] overlays: Add vl805 overlay
|
||
|
|
|
||
|
|
With the automatic VL805 support being removed from the standard
|
||
|
|
CM4 dtb (since most CM4 carriers don't have a VL805), retain support
|
||
|
|
on those that do by creating a "vl805" overlay that restores the
|
||
|
|
deleted "usb@0,0" node.
|
||
|
|
|
||
|
|
The "vl805" overlay will be loaded automatically (after an upcoming
|
||
|
|
firmware update) on CM4 boards where the EEPROM config includes the
|
||
|
|
setting VL805=1.
|
||
|
|
|
||
|
|
See: https://forums.raspberrypi.com/viewtopic.php?t=326088
|
||
|
|
|
||
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
||
|
|
---
|
||
|
|
arch/arm/boot/dts/overlays/Makefile | 1 +
|
||
|
|
arch/arm/boot/dts/overlays/README | 8 ++++++++
|
||
|
|
arch/arm/boot/dts/overlays/vl805-overlay.dts | 18 ++++++++++++++++++
|
||
|
|
3 files changed, 27 insertions(+)
|
||
|
|
create mode 100644 arch/arm/boot/dts/overlays/vl805-overlay.dts
|
||
|
|
|
||
|
|
--- a/arch/arm/boot/dts/overlays/Makefile
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/Makefile
|
||
|
|
@@ -243,6 +243,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
|
||
|
|
vc4-kms-v3d-pi4.dtbo \
|
||
|
|
vc4-kms-vga666.dtbo \
|
||
|
|
vga666.dtbo \
|
||
|
|
+ vl805.dtbo \
|
||
|
|
w1-gpio.dtbo \
|
||
|
|
w1-gpio-pullup.dtbo \
|
||
|
|
w5500.dtbo \
|
||
|
|
--- a/arch/arm/boot/dts/overlays/README
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
||
|
|
@@ -3744,6 +3744,14 @@ Load: dtoverlay=vga666
|
||
|
|
Params: <None>
|
||
|
|
|
||
|
|
|
||
|
|
+Name: vl805
|
||
|
|
+Info: Overlay to enable a VIA VL805 USB3 controller on CM4 carriers
|
||
|
|
+ Will be loaded automatically by up-to-date firmware if "VL805=1" is
|
||
|
|
+ set in the EEPROM config.
|
||
|
|
+Load: dtoverlay=vl805
|
||
|
|
+Params: <None>
|
||
|
|
+
|
||
|
|
+
|
||
|
|
Name: w1-gpio
|
||
|
|
Info: Configures the w1-gpio Onewire interface module.
|
||
|
|
Use this overlay if you *don't* need a GPIO to drive an external pullup.
|
||
|
|
--- /dev/null
|
||
|
|
+++ b/arch/arm/boot/dts/overlays/vl805-overlay.dts
|
||
|
|
@@ -0,0 +1,18 @@
|
||
|
|
+/dts-v1/;
|
||
|
|
+/plugin/;
|
||
|
|
+
|
||
|
|
+#include <dt-bindings/reset/raspberrypi,firmware-reset.h>
|
||
|
|
+
|
||
|
|
+/ {
|
||
|
|
+ compatible = "brcm,bcm2711";
|
||
|
|
+
|
||
|
|
+ fragment@0 {
|
||
|
|
+ target-path = "pcie0/pci@0,0";
|
||
|
|
+ __overlay__ {
|
||
|
|
+ usb@0,0 {
|
||
|
|
+ reg = <0 0 0 0 0>;
|
||
|
|
+ resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+ };
|
||
|
|
+};
|