From ec95018a68ef3983e7ed8ce7e0c1096cc496ea92 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Thu, 6 Mar 2025 23:24:22 +0000 Subject: [PATCH] ARM: dts: Add CM0 dts file Signed-off-by: Phil Elwell --- arch/arm/boot/dts/broadcom/Makefile | 1 + .../arm/boot/dts/broadcom/bcm2710-rpi-cm0.dts | 252 ++++++++++++++++++ arch/arm64/boot/dts/broadcom/Makefile | 1 + 3 files changed, 254 insertions(+) create mode 100644 arch/arm/boot/dts/broadcom/bcm2710-rpi-cm0.dts --- a/arch/arm/boot/dts/broadcom/Makefile +++ b/arch/arm/boot/dts/broadcom/Makefile @@ -66,6 +66,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \ bcm2710-rpi-3-b.dtb \ bcm2710-rpi-3-b-plus.dtb \ bcm2709-rpi-cm2.dtb \ + bcm2710-rpi-cm0.dtb \ bcm2710-rpi-cm3.dtb \ bcm2711-rpi-cm4.dtb \ bcm2711-rpi-cm4s.dtb --- /dev/null +++ b/arch/arm/boot/dts/broadcom/bcm2710-rpi-cm0.dts @@ -0,0 +1,252 @@ +/dts-v1/; + +#include "bcm2710.dtsi" +#include "bcm2709-rpi.dtsi" +#include "bcm283x-rpi-csi1-2lane.dtsi" +#include "bcm283x-rpi-i2c0mux_0_44.dtsi" +#include "bcm2708-rpi-bt.dtsi" +#include "bcm283x-rpi-led-deprecated.dtsi" + +/ { + compatible = "raspberrypi,0-compute-module", "brcm,bcm2837"; + model = "Raspberry Pi Compute Module 0"; + + aliases { + serial0 = &uart1; + serial1 = &uart0; + mmc1 = &mmcnr; + }; +}; + +&gpio { + /* + * These names are (mostly) from the schematic. + */ + gpio-line-names = "ID_SDA", + "ID_SCL", + "GPIO2", + "GPIO3", + "GPIO4", + "GPIO5", + "GPIO6", + "GPIO7", + "GPIO8", + "GPIO9", + "GPIO10", + "GPIO11", + "GPIO12", + "GPIO13", + "GPIO14", + "GPIO15", + "GPIO16", + "GPIO17", + "GPIO18", + "GPIO19", + "GPIO20", + "GPIO21", + "GPIO22", + "GPIO23", + "GPIO24", + "GPIO25", + "GPIO26", + "GPIO27", + "HDMI_HPD_N", + "STATUS_LED_N", + /* Used by BT module */ + "BT_CTS", + "BT_RTS", + "BT_TXD", + "BT_RXD", + /* Used by Wifi */ + "WIFI_SD_CLK", + "WIFI_SD_CMD", + "WIFI_SD_D0", + "WIFI_SD_D1", + "WIFI_SD_D2", + "WIFI_SD_D3", + "CAM_GPIO", /* GPIO40 */ + "WL_ON", /* GPIO41 */ + "BT_ON", /* GPIO42 */ + "EMMC_REENABLE_N", /* GPIO43 */ + "SDA0", /* GPIO44 */ + "SCL0", /* GPIO45 */ + "INT_SDA", /* GPIO46 */ + "INT_SCL", /* GPIO47 */ + /* Used by SD Card */ + "SD_CLK", + "SD_CMD", + "SD_D0", + "SD_D1", + "SD_D2", + "SD_D3"; + + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + sdio_pins: sdio_pins { + brcm,pins = <34 35 36 37 38 39>; + brcm,function = <7>; // alt3 = SD1 + brcm,pull = <0 2 2 2 2 2>; + }; + + bt_pins: bt_pins { + brcm,pins = <43>; + brcm,function = <4>; /* alt0:GPCLK2 */ + brcm,pull = <0>; + }; + + uart0_pins: uart0_pins { + brcm,pins = <30 31 32 33>; + brcm,function = <7>; /* alt3=UART0 */ + brcm,pull = <2 0 0 2>; /* up none none up */ + }; + + uart1_pins: uart1_pins { + brcm,pins; + brcm,function; + brcm,pull; + }; + + uart1_bt_pins: uart1_bt_pins { + brcm,pins = <32 33 30 31>; + brcm,function = ; /* alt5=UART1 */ + brcm,pull = <0 2 2 0>; + }; + + audio_pins: audio_pins { + brcm,pins = <>; + brcm,function = <>; + }; +}; + +&mmcnr { + pinctrl-names = "default"; + pinctrl-0 = <&sdio_pins>; + bus-width = <4>; + status = "okay"; + #address-cells = <1>; + #size-cells = <0>; + + brcmf: wifi@1 { + reg = <1>; + compatible = "brcm,bcm4329-fmac"; + }; +}; + +&uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&uart0_pins &bt_pins>; + status = "okay"; +}; + +&uart1 { + pinctrl-names = "default"; + pinctrl-0 = <&uart1_pins>; + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <125000000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <125000000>; + }; +}; + +&i2c0if { + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&led_act { + gpios = <&gpio 29 GPIO_ACTIVE_LOW>; + default-state = "off"; + linux,default-trigger = "actpwr"; +}; + +&hdmi { + hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>; +}; + +&vchiq { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +&bt { + shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>; +}; + +&minibt { + shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>; +}; + +&cam1_reg { + gpio = <&gpio 40 GPIO_ACTIVE_HIGH>; +}; + +cam0_reg: &cam_dummy_reg { +}; + +i2c_csi_dsi0: &i2c0 { +}; + +/ { + __overrides__ { + audio = <&chosen>,"bootargs{on='snd_bcm2835.enable_hdmi=1',off='snd_bcm2835.enable_hdmi=0'}"; + + act_led_gpio = <&led_act>,"gpios:4"; + act_led_activelow = <&led_act>,"gpios:8"; + act_led_trigger = <&led_act>,"linux,default-trigger"; + }; +}; --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -19,6 +19,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rp dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-2-b.dtb dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb +dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm0.dtb dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-cm3.dtb dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-cm4.dtb dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-cm4s.dtb