0001 // SPDX-License-Identifier: GPL-2.0
0002 /dts-v1/;
0003 #include "bcm2835.dtsi"
0004 #include "bcm2835-rpi.dtsi"
0005 #include "bcm283x-rpi-usb-host.dtsi"
0006
0007 / {
0008 compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";
0009 model = "Raspberry Pi Model A+";
0010
0011 memory@0 {
0012 device_type = "memory";
0013 reg = <0 0x10000000>;
0014 };
0015
0016 leds {
0017 led-act {
0018 gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
0019 };
0020
0021 led-pwr {
0022 label = "PWR";
0023 gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
0024 default-state = "keep";
0025 linux,default-trigger = "default-on";
0026 };
0027 };
0028 };
0029
0030 &gpio {
0031 /*
0032 * This is based on the unreleased schematic for the Model A+.
0033 *
0034 * Legend:
0035 * "FOO" = GPIO line named "FOO" on the schematic
0036 * "FOO_N" = GPIO line named "FOO" on schematic, active low
0037 */
0038 gpio-line-names = "ID_SDA",
0039 "ID_SCL",
0040 "SDA1",
0041 "SCL1",
0042 "GPIO_GCLK",
0043 "GPIO5",
0044 "GPIO6",
0045 "SPI_CE1_N",
0046 "SPI_CE0_N",
0047 "SPI_MISO",
0048 "SPI_MOSI",
0049 "SPI_SCLK",
0050 "GPIO12",
0051 "GPIO13",
0052 /* Serial port */
0053 "TXD0",
0054 "RXD0",
0055 "GPIO16",
0056 "GPIO17",
0057 "GPIO18",
0058 "GPIO19",
0059 "GPIO20",
0060 "GPIO21",
0061 "GPIO22",
0062 "GPIO23",
0063 "GPIO24",
0064 "GPIO25",
0065 "GPIO26",
0066 "GPIO27",
0067 "SDA0",
0068 "SCL0",
0069 "", /* GPIO30 */
0070 "", /* GPIO31 */
0071 "CAM_GPIO1", /* GPIO32 */
0072 "", /* GPIO33 */
0073 "", /* GPIO34 */
0074 "PWR_LOW_N", /* GPIO35 */
0075 "", /* GPIO36 */
0076 "", /* GPIO37 */
0077 "USB_LIMIT", /* GPIO38 */
0078 "", /* GPIO39 */
0079 "PWM0_OUT", /* GPIO40 */
0080 "CAM_GPIO0", /* GPIO41 */
0081 "", /* GPIO42 */
0082 "", /* GPIO43 */
0083 "", /* GPIO44 */
0084 "PWM1_OUT", /* GPIO45 */
0085 "HDMI_HPD_N",
0086 "STATUS_LED",
0087 /* Used by SD Card */
0088 "SD_CLK_R",
0089 "SD_CMD_R",
0090 "SD_DATA0_R",
0091 "SD_DATA1_R",
0092 "SD_DATA2_R",
0093 "SD_DATA3_R";
0094
0095 pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
0096
0097 /* I2S interface */
0098 i2s_alt0: i2s_alt0 {
0099 brcm,pins = <18 19 20 21>;
0100 brcm,function = <BCM2835_FSEL_ALT0>;
0101 };
0102 };
0103
0104 &hdmi {
0105 hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
0106 power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
0107 status = "okay";
0108 };
0109
0110 &pwm {
0111 pinctrl-names = "default";
0112 pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
0113 status = "okay";
0114 };
0115
0116 &sdhost {
0117 pinctrl-names = "default";
0118 pinctrl-0 = <&sdhost_gpio48>;
0119 bus-width = <4>;
0120 status = "okay";
0121 };
0122
0123 &uart0 {
0124 pinctrl-names = "default";
0125 pinctrl-0 = <&uart0_gpio14>;
0126 status = "okay";
0127 };
