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Diffstat (limited to 'arch/arm/boot/dts/bcm2835-rpi-a-plus.dts')
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-a-plus.dts127
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
new file mode 100644
index 000000000..9b9a18bbb
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/dts-v1/;
+#include "bcm2835.dtsi"
+#include "bcm2835-rpi.dtsi"
+#include "bcm283x-rpi-usb-host.dtsi"
+
+/ {
+ compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";
+ model = "Raspberry Pi Model A+";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0 0x10000000>;
+ };
+
+ leds {
+ led-act {
+ gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
+ };
+
+ led-pwr {
+ label = "PWR";
+ gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
+ default-state = "keep";
+ linux,default-trigger = "default-on";
+ };
+ };
+};
+
+&gpio {
+ /*
+ * This is based on the unreleased schematic for the Model A+.
+ *
+ * Legend:
+ * "FOO" = GPIO line named "FOO" on the schematic
+ * "FOO_N" = GPIO line named "FOO" on schematic, active low
+ */
+ gpio-line-names = "ID_SDA",
+ "ID_SCL",
+ "SDA1",
+ "SCL1",
+ "GPIO_GCLK",
+ "GPIO5",
+ "GPIO6",
+ "SPI_CE1_N",
+ "SPI_CE0_N",
+ "SPI_MISO",
+ "SPI_MOSI",
+ "SPI_SCLK",
+ "GPIO12",
+ "GPIO13",
+ /* Serial port */
+ "TXD0",
+ "RXD0",
+ "GPIO16",
+ "GPIO17",
+ "GPIO18",
+ "GPIO19",
+ "GPIO20",
+ "GPIO21",
+ "GPIO22",
+ "GPIO23",
+ "GPIO24",
+ "GPIO25",
+ "GPIO26",
+ "GPIO27",
+ "SDA0",
+ "SCL0",
+ "", /* GPIO30 */
+ "", /* GPIO31 */
+ "CAM_GPIO1", /* GPIO32 */
+ "", /* GPIO33 */
+ "", /* GPIO34 */
+ "PWR_LOW_N", /* GPIO35 */
+ "", /* GPIO36 */
+ "", /* GPIO37 */
+ "USB_LIMIT", /* GPIO38 */
+ "", /* GPIO39 */
+ "PWM0_OUT", /* GPIO40 */
+ "CAM_GPIO0", /* GPIO41 */
+ "", /* GPIO42 */
+ "", /* GPIO43 */
+ "", /* GPIO44 */
+ "PWM1_OUT", /* GPIO45 */
+ "HDMI_HPD_N",
+ "STATUS_LED",
+ /* Used by SD Card */
+ "SD_CLK_R",
+ "SD_CMD_R",
+ "SD_DATA0_R",
+ "SD_DATA1_R",
+ "SD_DATA2_R",
+ "SD_DATA3_R";
+
+ pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
+
+ /* I2S interface */
+ i2s_alt0: i2s_alt0 {
+ brcm,pins = <18 19 20 21>;
+ brcm,function = <BCM2835_FSEL_ALT0>;
+ };
+};
+
+&hdmi {
+ hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+ power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
+ status = "okay";
+};
+
+&pwm {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
+ status = "okay";
+};
+
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio14>;
+ status = "okay";
+};