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120 lines
2.9 KiB
Diff
120 lines
2.9 KiB
Diff
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From 6d9357915cc2c52538841c6d090522b3d3fe2c98 Mon Sep 17 00:00:00 2001
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From: Jonathan Bell <jonathan@raspberrypi.com>
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Date: Mon, 22 Jan 2024 16:21:04 +0000
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Subject: [PATCH 0850/1085] arm: dts: overlays: add Pi 5 variants for w1-gpio
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overlays
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Make use of the latency-busting read-poll feature on Pi 5 only.
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Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
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---
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arch/arm/boot/dts/overlays/Makefile | 2 ++
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arch/arm/boot/dts/overlays/README | 8 +++++++
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arch/arm/boot/dts/overlays/overlay_map.dts | 21 +++++++++++++++++++
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.../boot/dts/overlays/w1-gpio-pi5-overlay.dts | 15 +++++++++++++
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.../overlays/w1-gpio-pullup-pi5-overlay.dts | 15 +++++++++++++
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5 files changed, 61 insertions(+)
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create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pi5-overlay.dts
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create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pullup-pi5-overlay.dts
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--- a/arch/arm/boot/dts/overlays/Makefile
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+++ b/arch/arm/boot/dts/overlays/Makefile
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@@ -308,7 +308,9 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
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vga666.dtbo \
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vl805.dtbo \
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w1-gpio.dtbo \
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+ w1-gpio-pi5.dtbo \
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w1-gpio-pullup.dtbo \
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+ w1-gpio-pullup-pi5.dtbo \
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w5500.dtbo \
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watterott-display.dtbo \
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waveshare-can-fd-hat-mode-a.dtbo \
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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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@@ -5044,6 +5044,10 @@ Params: gpiopin GPIO for
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pullup Now enabled by default (ignored)
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+Name: w1-gpio-pi5
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+Info: See w1-gpio (this is the Pi 5 version)
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+
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+
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Name: w1-gpio-pullup
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Info: Configures the w1-gpio Onewire interface module.
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Use this overlay if you *do* need a GPIO to drive an external pullup.
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@@ -5053,6 +5057,10 @@ Params: gpiopin GPIO for
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pullup Now enabled by default (ignored)
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+Name: w1-gpio-pullup-pi5
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+Info: See w1-gpio-pullup (this is the Pi 5 version)
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+
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+
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Name: w5500
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Info: Overlay for the Wiznet W5500 Ethernet Controller on SPI0
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Load: dtoverlay=w5500,<param>=<val>
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--- a/arch/arm/boot/dts/overlays/overlay_map.dts
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+++ b/arch/arm/boot/dts/overlays/overlay_map.dts
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@@ -460,4 +460,25 @@
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vl805 {
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bcm2711;
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};
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+
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+ w1-gpio {
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+ bcm2835;
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+ bcm2711;
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+ bcm2712 = "w1-gpio-pi5";
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+ };
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+
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+ w1-gpio-pi5 {
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+ bcm2712;
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+ };
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+
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+ w1-gpio-pullup {
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+ bcm2835;
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+ bcm2711;
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+ bcm2712 = "w1-gpio-pullup-pi5";
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+ };
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+
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+ w1-gpio-pullup-pi5 {
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+ bcm2712;
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+ };
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+
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};
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/w1-gpio-pi5-overlay.dts
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@@ -0,0 +1,15 @@
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+/dts-v1/;
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+/plugin/;
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+
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+#include "w1-gpio-overlay.dts"
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+
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+/ {
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+ compatible = "brcm,bcm2712";
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+
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+ fragment@2 {
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+ target = <&w1>;
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+ __overlay__ {
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+ raspberrypi,delay-needs-poll;
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+ };
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+ };
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+};
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--- /dev/null
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+++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-pi5-overlay.dts
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@@ -0,0 +1,15 @@
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+/dts-v1/;
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+/plugin/;
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+
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+#include "w1-gpio-pullup-overlay.dts"
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+
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+/ {
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+ compatible = "brcm,bcm2712";
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+
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+ fragment@2 {
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+ target = <&w1>;
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+ __overlay__ {
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+ raspberrypi,delay-needs-poll;
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+ };
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+ };
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+};
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