bcm2835-rpi-a-plus.dts (2371B)
1// SPDX-License-Identifier: GPL-2.0 2/dts-v1/; 3#include "bcm2835.dtsi" 4#include "bcm2835-rpi.dtsi" 5#include "bcm283x-rpi-usb-host.dtsi" 6 7/ { 8 compatible = "raspberrypi,model-a-plus", "brcm,bcm2835"; 9 model = "Raspberry Pi Model A+"; 10 11 memory@0 { 12 device_type = "memory"; 13 reg = <0 0x10000000>; 14 }; 15 16 leds { 17 led-act { 18 gpios = <&gpio 47 GPIO_ACTIVE_HIGH>; 19 }; 20 21 led-pwr { 22 label = "PWR"; 23 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>; 24 default-state = "keep"; 25 linux,default-trigger = "default-on"; 26 }; 27 }; 28}; 29 30&gpio { 31 /* 32 * This is based on the unreleased schematic for the Model A+. 33 * 34 * Legend: 35 * "FOO" = GPIO line named "FOO" on the schematic 36 * "FOO_N" = GPIO line named "FOO" on schematic, active low 37 */ 38 gpio-line-names = "ID_SDA", 39 "ID_SCL", 40 "SDA1", 41 "SCL1", 42 "GPIO_GCLK", 43 "GPIO5", 44 "GPIO6", 45 "SPI_CE1_N", 46 "SPI_CE0_N", 47 "SPI_MISO", 48 "SPI_MOSI", 49 "SPI_SCLK", 50 "GPIO12", 51 "GPIO13", 52 /* Serial port */ 53 "TXD0", 54 "RXD0", 55 "GPIO16", 56 "GPIO17", 57 "GPIO18", 58 "GPIO19", 59 "GPIO20", 60 "GPIO21", 61 "GPIO22", 62 "GPIO23", 63 "GPIO24", 64 "GPIO25", 65 "GPIO26", 66 "GPIO27", 67 "SDA0", 68 "SCL0", 69 "", /* GPIO30 */ 70 "", /* GPIO31 */ 71 "CAM_GPIO1", /* GPIO32 */ 72 "", /* GPIO33 */ 73 "", /* GPIO34 */ 74 "PWR_LOW_N", /* GPIO35 */ 75 "", /* GPIO36 */ 76 "", /* GPIO37 */ 77 "USB_LIMIT", /* GPIO38 */ 78 "", /* GPIO39 */ 79 "PWM0_OUT", /* GPIO40 */ 80 "CAM_GPIO0", /* GPIO41 */ 81 "", /* GPIO42 */ 82 "", /* GPIO43 */ 83 "", /* GPIO44 */ 84 "PWM1_OUT", /* GPIO45 */ 85 "HDMI_HPD_N", 86 "STATUS_LED", 87 /* Used by SD Card */ 88 "SD_CLK_R", 89 "SD_CMD_R", 90 "SD_DATA0_R", 91 "SD_DATA1_R", 92 "SD_DATA2_R", 93 "SD_DATA3_R"; 94 95 pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; 96 97 /* I2S interface */ 98 i2s_alt0: i2s_alt0 { 99 brcm,pins = <18 19 20 21>; 100 brcm,function = <BCM2835_FSEL_ALT0>; 101 }; 102}; 103 104&hdmi { 105 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; 106 power-domains = <&power RPI_POWER_DOMAIN_HDMI>; 107 status = "okay"; 108}; 109 110&pwm { 111 pinctrl-names = "default"; 112 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>; 113 status = "okay"; 114}; 115 116&sdhost { 117 pinctrl-names = "default"; 118 pinctrl-0 = <&sdhost_gpio48>; 119 bus-width = <4>; 120 status = "okay"; 121}; 122 123&uart0 { 124 pinctrl-names = "default"; 125 pinctrl-0 = <&uart0_gpio14>; 126 status = "okay"; 127};