git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 6d9357915cc2c52538841c6d090522b3d3fe2c98 Mon Sep 17 00:00:00 2001
   2 From: Jonathan Bell <jonathan@raspberrypi.com>
   3 Date: Mon, 22 Jan 2024 16:21:04 +0000
   4 Subject: [PATCH 0850/1085] arm: dts: overlays: add Pi 5 variants for w1-gpio
   5  overlays
   6
   7 Make use of the latency-busting read-poll feature on Pi 5 only.
   8
   9 Signed-off-by: Jonathan Bell <jonathan@raspberrypi.com>
  10 ---
  11  arch/arm/boot/dts/overlays/Makefile           |  2 ++
  12  arch/arm/boot/dts/overlays/README             |  8 +++++++
  13  arch/arm/boot/dts/overlays/overlay_map.dts    | 21 +++++++++++++++++++
  14  .../boot/dts/overlays/w1-gpio-pi5-overlay.dts | 15 +++++++++++++
  15  .../overlays/w1-gpio-pullup-pi5-overlay.dts   | 15 +++++++++++++
  16  5 files changed, 61 insertions(+)
  17  create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pi5-overlay.dts
  18  create mode 100644 arch/arm/boot/dts/overlays/w1-gpio-pullup-pi5-overlay.dts
  19
  20 --- a/arch/arm/boot/dts/overlays/Makefile
  21 +++ b/arch/arm/boot/dts/overlays/Makefile
  22 @@ -308,7 +308,9 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  23         vga666.dtbo \
  24         vl805.dtbo \
  25         w1-gpio.dtbo \
  26 +       w1-gpio-pi5.dtbo \
  27         w1-gpio-pullup.dtbo \
  28 +       w1-gpio-pullup-pi5.dtbo \
  29         w5500.dtbo \
  30         watterott-display.dtbo \
  31         waveshare-can-fd-hat-mode-a.dtbo \
  32 --- a/arch/arm/boot/dts/overlays/README
  33 +++ b/arch/arm/boot/dts/overlays/README
  34 @@ -5044,6 +5044,10 @@ Params: gpiopin                 GPIO for
  35          pullup                  Now enabled by default (ignored)
  36
  37
  38 +Name:   w1-gpio-pi5
  39 +Info:   See w1-gpio (this is the Pi 5 version)
  40 +
  41 +
  42  Name:   w1-gpio-pullup
  43  Info:   Configures the w1-gpio Onewire interface module.
  44          Use this overlay if you *do* need a GPIO to drive an external pullup.
  45 @@ -5053,6 +5057,10 @@ Params: gpiopin                 GPIO for
  46          pullup                  Now enabled by default (ignored)
  47
  48
  49 +Name:   w1-gpio-pullup-pi5
  50 +Info:   See w1-gpio-pullup (this is the Pi 5 version)
  51 +
  52 +
  53  Name:   w5500
  54  Info:   Overlay for the Wiznet W5500 Ethernet Controller on SPI0
  55  Load:   dtoverlay=w5500,<param>=<val>
  56 --- a/arch/arm/boot/dts/overlays/overlay_map.dts
  57 +++ b/arch/arm/boot/dts/overlays/overlay_map.dts
  58 @@ -460,4 +460,25 @@
  59         vl805 {
  60                 bcm2711;
  61         };
  62 +
  63 +       w1-gpio {
  64 +               bcm2835;
  65 +               bcm2711;
  66 +               bcm2712 = "w1-gpio-pi5";
  67 +       };
  68 +
  69 +       w1-gpio-pi5 {
  70 +               bcm2712;
  71 +       };
  72 +
  73 +       w1-gpio-pullup {
  74 +               bcm2835;
  75 +               bcm2711;
  76 +               bcm2712 = "w1-gpio-pullup-pi5";
  77 +       };
  78 +
  79 +       w1-gpio-pullup-pi5 {
  80 +               bcm2712;
  81 +       };
  82 +
  83  };
  84 --- /dev/null
  85 +++ b/arch/arm/boot/dts/overlays/w1-gpio-pi5-overlay.dts
  86 @@ -0,0 +1,15 @@
  87 +/dts-v1/;
  88 +/plugin/;
  89 +
  90 +#include "w1-gpio-overlay.dts"
  91 +
  92 +/ {
  93 +       compatible = "brcm,bcm2712";
  94 +
  95 +       fragment@2 {
  96 +               target = <&w1>;
  97 +               __overlay__ {
  98 +                       raspberrypi,delay-needs-poll;
  99 +               };
 100 +       };
 101 +};
 102 --- /dev/null
 103 +++ b/arch/arm/boot/dts/overlays/w1-gpio-pullup-pi5-overlay.dts
 104 @@ -0,0 +1,15 @@
 105 +/dts-v1/;
 106 +/plugin/;
 107 +
 108 +#include "w1-gpio-pullup-overlay.dts"
 109 +
 110 +/ {
 111 +       compatible = "brcm,bcm2712";
 112 +
 113 +       fragment@2 {
 114 +               target = <&w1>;
 115 +               __overlay__ {
 116 +                       raspberrypi,delay-needs-poll;
 117 +               };
 118 +       };
 119 +};