target/linux/bcm27xx/patches-5.15/950-0547-ARM-dts-Add-Pi-Zero-2-support.patch

   1 From ab5164dbd0241da27ec87eff34408dd97d9658c0 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Thu, 9 Sep 2021 10:37:15 +0100
   4 Subject: [PATCH] ARM: dts: Add Pi Zero 2 support
   5
   6 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
   7 ---
   8  arch/arm/boot/dts/Makefile                    |   1 +
   9  arch/arm/boot/dts/bcm2710-rpi-zero-2.dts      | 177 ++++++++++++++++++
  10  arch/arm64/boot/dts/broadcom/Makefile         |   1 +
  11  .../boot/dts/broadcom/bcm2710-rpi-zero-2.dts  |   1 +
  12  4 files changed, 180 insertions(+)
  13  create mode 100644 arch/arm/boot/dts/bcm2710-rpi-zero-2.dts
  14  create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-zero-2.dts
  15
  16 --- a/arch/arm/boot/dts/Makefile
  17 +++ b/arch/arm/boot/dts/Makefile
  18 @@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
  19         bcm2708-rpi-cm.dtb \
  20         bcm2708-rpi-zero.dtb \
  21         bcm2708-rpi-zero-w.dtb \
  22 +       bcm2710-rpi-zero-2.dtb \
  23         bcm2709-rpi-2-b.dtb \
  24         bcm2710-rpi-2-b.dtb \
  25         bcm2710-rpi-3-b.dtb \
  26 --- /dev/null
  27 +++ b/arch/arm/boot/dts/bcm2710-rpi-zero-2.dts
  28 @@ -0,0 +1,177 @@
  29 +/dts-v1/;
  30 +
  31 +#include "bcm2710.dtsi"
  32 +#include "bcm2709-rpi.dtsi"
  33 +#include "bcm283x-rpi-csi1-2lane.dtsi"
  34 +#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
  35 +#include "bcm2708-rpi-bt.dtsi"
  36 +#include "bcm283x-rpi-cam1-regulator.dtsi"
  37 +
  38 +/ {
  39 +       compatible = "raspberrypi,model-zero-2", "brcm,bcm2837";
  40 +       model = "Raspberry Pi Zero 2";
  41 +
  42 +       chosen {
  43 +               bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
  44 +       };
  45 +
  46 +       aliases {
  47 +               serial0 = &uart1;
  48 +               serial1 = &uart0;
  49 +               mmc1 = &mmcnr;
  50 +       };
  51 +};
  52 +
  53 +&gpio {
  54 +       spi0_pins: spi0_pins {
  55 +               brcm,pins = <9 10 11>;
  56 +               brcm,function = <4>; /* alt0 */
  57 +       };
  58 +
  59 +       spi0_cs_pins: spi0_cs_pins {
  60 +               brcm,pins = <8 7>;
  61 +               brcm,function = <1>; /* output */
  62 +       };
  63 +
  64 +       i2c0_pins: i2c0 {
  65 +               brcm,pins = <0 1>;
  66 +               brcm,function = <4>;
  67 +       };
  68 +
  69 +       i2c1_pins: i2c1 {
  70 +               brcm,pins = <2 3>;
  71 +               brcm,function = <4>;
  72 +       };
  73 +
  74 +       i2s_pins: i2s {
  75 +               brcm,pins = <18 19 20 21>;
  76 +               brcm,function = <4>; /* alt0 */
  77 +       };
  78 +
  79 +       sdio_pins: sdio_pins {
  80 +               brcm,pins =     <34 35 36 37 38 39>;
  81 +               brcm,function = <7>; // alt3 = SD1
  82 +               brcm,pull =     <0 2 2 2 2 2>;
  83 +       };
  84 +
  85 +       bt_pins: bt_pins {
  86 +               brcm,pins = <43>;
  87 +               brcm,function = <4>; /* alt0:GPCLK2 */
  88 +               brcm,pull = <0>;
  89 +       };
  90 +
  91 +       uart0_pins: uart0_pins {
  92 +               brcm,pins = <30 31 32 33>;
  93 +               brcm,function = <7>; /* alt3=UART0 */
  94 +               brcm,pull = <2 0 0 2>; /* up none none up */
  95 +       };
  96 +
  97 +       uart1_pins: uart1_pins {
  98 +               brcm,pins;
  99 +               brcm,function;
 100 +               brcm,pull;
 101 +       };
 102 +
 103 +       audio_pins: audio_pins {
 104 +               brcm,pins = <>;
 105 +               brcm,function = <>;
 106 +       };
 107 +};
 108 +
 109 +&mmcnr {
 110 +       pinctrl-names = "default";
 111 +       pinctrl-0 = <&sdio_pins>;
 112 +       bus-width = <4>;
 113 +       status = "okay";
 114 +};
 115 +
 116 +&uart0 {
 117 +       pinctrl-names = "default";
 118 +       pinctrl-0 = <&uart0_pins &bt_pins>;
 119 +       status = "okay";
 120 +};
 121 +
 122 +&uart1 {
 123 +       pinctrl-names = "default";
 124 +       pinctrl-0 = <&uart1_pins>;
 125 +       status = "okay";
 126 +};
 127 +
 128 +&spi0 {
 129 +       pinctrl-names = "default";
 130 +       pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
 131 +       cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
 132 +
 133 +       spidev0: spidev@0{
 134 +               compatible = "spidev";
 135 +               reg = <0>;      /* CE0 */
 136 +               #address-cells = <1>;
 137 +               #size-cells = <0>;
 138 +               spi-max-frequency = <125000000>;
 139 +       };
 140 +
 141 +       spidev1: spidev@1{
 142 +               compatible = "spidev";
 143 +               reg = <1>;      /* CE1 */
 144 +               #address-cells = <1>;
 145 +               #size-cells = <0>;
 146 +               spi-max-frequency = <125000000>;
 147 +       };
 148 +};
 149 +
 150 +&i2c0if {
 151 +       clock-frequency = <100000>;
 152 +};
 153 +
 154 +&i2c1 {
 155 +       pinctrl-names = "default";
 156 +       pinctrl-0 = <&i2c1_pins>;
 157 +       clock-frequency = <100000>;
 158 +};
 159 +
 160 +&i2c2 {
 161 +       clock-frequency = <100000>;
 162 +};
 163 +
 164 +&i2s {
 165 +       pinctrl-names = "default";
 166 +       pinctrl-0 = <&i2s_pins>;
 167 +};
 168 +
 169 +&leds {
 170 +       act_led: led-act {
 171 +               label = "led0";
 172 +               linux,default-trigger = "actpwr";
 173 +               gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
 174 +       };
 175 +};
 176 +
 177 +&hdmi {
 178 +       hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
 179 +};
 180 +
 181 +&audio {
 182 +       pinctrl-names = "default";
 183 +       pinctrl-0 = <&audio_pins>;
 184 +       brcm,disable-headphones = <1>;
 185 +};
 186 +
 187 +&bt {
 188 +       shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 189 +};
 190 +
 191 +&minibt {
 192 +       shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
 193 +};
 194 +
 195 +&cam1_reg {
 196 +       gpio = <&gpio 40 GPIO_ACTIVE_HIGH>;
 197 +};
 198 +
 199 +/ {
 200 +       __overrides__ {
 201 +               act_led_gpio = <&act_led>,"gpios:4";
 202 +               act_led_activelow = <&act_led>,"gpios:8";
 203 +               act_led_trigger = <&act_led>,"linux,default-trigger";
 204 +       };
 205 +};
 206 --- a/arch/arm64/boot/dts/broadcom/Makefile
 207 +++ b/arch/arm64/boot/dts/broadcom/Makefile
 208 @@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rp
 209                               bcm2837-rpi-3-b.dtb \
 210                               bcm2837-rpi-3-b-plus.dtb \
 211                               bcm2837-rpi-cm3-io3.dtb
 212 +dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-zero-2.dtb
 213  dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-2-b.dtb
 214  dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
 215  dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
 216 --- /dev/null
 217 +++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-zero-2.dts
 218 @@ -0,0 +1 @@
 219 +#include "../../../../arm/boot/dts/bcm2710-rpi-zero-2.dts"