From 748e4f3d702def1a4bff191e0cf93b6a05340f01 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:41:34 +0000
Subject: [PATCH] add gpio led uart
---
kernel/arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 84 ++++++++++++++++++++++++++++++++++++++++--
1 files changed, 80 insertions(+), 4 deletions(-)
diff --git a/kernel/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/kernel/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index 2fef70a..d8af8ee 100644
--- a/kernel/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/kernel/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
#include "bcm2836.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2836-rpi.dtsi"
#include "bcm283x-rpi-smsc9514.dtsi"
#include "bcm283x-rpi-usb-host.dtsi"
@@ -9,16 +9,17 @@
compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
model = "Raspberry Pi 2 Model B";
- memory {
+ memory@0 {
+ device_type = "memory";
reg = <0 0x40000000>;
};
leds {
- act {
+ led-act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
- pwr {
+ led-pwr {
label = "PWR";
gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
default-state = "keep";
@@ -28,6 +29,72 @@
};
&gpio {
+ /*
+ * Taken from rpi_SCH_2b_1p2_reduced.pdf and
+ * the official GPU firmware DT blob.
+ *
+ * Legend:
+ * "NC" = not connected (no rail from the SoC)
+ * "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 */
+ "LAN_RUN",
+ "CAM_GPIO1",
+ "", /* GPIO33 */
+ "", /* GPIO34 */
+ "PWR_LOW_N",
+ "", /* GPIO36 */
+ "", /* GPIO37 */
+ "USB_LIMIT",
+ "", /* GPIO39 */
+ "PWM0_OUT",
+ "CAM_GPIO0",
+ "SMPS_SCL",
+ "SMPS_SDA",
+ "ETHCLK",
+ "PWM1_OUT",
+ "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 */
@@ -39,6 +106,8 @@
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+ power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
+ status = "okay";
};
&pwm {
@@ -47,6 +116,13 @@
status = "okay";
};
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+ bus-width = <4>;
+ status = "okay";
+};
+
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_gpio14>;
--
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