1// SPDX-License-Identifier: GPL-2.0 2/dts-v1/; 3#include "bcm2835.dtsi" 4#include "bcm2835-rpi.dtsi" 5#include "bcm2835-rpi-common.dtsi" 6#include "bcm283x-rpi-led-deprecated.dtsi" 7#include "bcm283x-rpi-usb-host.dtsi" 8 9/ { 10 compatible = "raspberrypi,model-a-plus", "brcm,bcm2835"; 11 model = "Raspberry Pi Model A+"; 12 13 memory@0 { 14 device_type = "memory"; 15 reg = <0 0x10000000>; 16 }; 17}; 18 19&gpio { 20 /* 21 * This is based on the unreleased schematic for the Model A+. 22 * 23 * Legend: 24 * "FOO" = GPIO line named "FOO" on the schematic 25 * "FOO_N" = GPIO line named "FOO" on schematic, active low 26 */ 27 gpio-line-names = "ID_SDA", 28 "ID_SCL", 29 "SDA1", 30 "SCL1", 31 "GPIO_GCLK", 32 "GPIO5", 33 "GPIO6", 34 "SPI_CE1_N", 35 "SPI_CE0_N", 36 "SPI_MISO", 37 "SPI_MOSI", 38 "SPI_SCLK", 39 "GPIO12", 40 "GPIO13", 41 /* Serial port */ 42 "TXD0", 43 "RXD0", 44 "GPIO16", 45 "GPIO17", 46 "GPIO18", 47 "GPIO19", 48 "GPIO20", 49 "GPIO21", 50 "GPIO22", 51 "GPIO23", 52 "GPIO24", 53 "GPIO25", 54 "GPIO26", 55 "GPIO27", 56 "SDA0", 57 "SCL0", 58 "", /* GPIO30 */ 59 "", /* GPIO31 */ 60 "CAM_GPIO1", /* GPIO32 */ 61 "", /* GPIO33 */ 62 "", /* GPIO34 */ 63 "PWR_LOW_N", /* GPIO35 */ 64 "", /* GPIO36 */ 65 "", /* GPIO37 */ 66 "USB_LIMIT", /* GPIO38 */ 67 "", /* GPIO39 */ 68 "PWM0_OUT", /* GPIO40 */ 69 "CAM_GPIO0", /* GPIO41 */ 70 "", /* GPIO42 */ 71 "", /* GPIO43 */ 72 "", /* GPIO44 */ 73 "PWM1_OUT", /* GPIO45 */ 74 "HDMI_HPD_N", 75 "STATUS_LED", 76 /* Used by SD Card */ 77 "SD_CLK_R", 78 "SD_CMD_R", 79 "SD_DATA0_R", 80 "SD_DATA1_R", 81 "SD_DATA2_R", 82 "SD_DATA3_R"; 83 84 pinctrl-0 = <&gpioout &alt0 &i2s_alt0>; 85 86 /* I2S interface */ 87 i2s_alt0: i2s_alt0 { 88 brcm,pins = <18 19 20 21>; 89 brcm,function = <BCM2835_FSEL_ALT0>; 90 }; 91}; 92 93&hdmi { 94 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; 95 power-domains = <&power RPI_POWER_DOMAIN_HDMI>; 96 status = "okay"; 97}; 98 99&led_act { 100 gpios = <&gpio 47 GPIO_ACTIVE_HIGH>; 101}; 102 103&leds { 104 led-pwr { 105 label = "PWR"; 106 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>; 107 default-state = "keep"; 108 linux,default-trigger = "default-on"; 109 }; 110}; 111 112&pwm { 113 pinctrl-names = "default"; 114 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>; 115 status = "okay"; 116}; 117 118&sdhost { 119 pinctrl-names = "default"; 120 pinctrl-0 = <&sdhost_gpio48>; 121 bus-width = <4>; 122 status = "okay"; 123}; 124 125&uart0 { 126 pinctrl-names = "default"; 127 pinctrl-0 = <&uart0_gpio14>; 128 status = "okay"; 129}; 130