[LEDE-DEV] [PATCH 2/2] brcm2708: add Raspberry Zero W support

Stijn Tintel stijn at linux-ipv6.be
Thu Mar 2 17:37:59 PST 2017


Signed-off-by: Stijn Tintel <stijn at linux-ipv6.be>
---
 .../brcm2708/base-files/etc/board.d/02_network     |   3 +
 target/linux/brcm2708/base-files/etc/diag.sh       |   3 +-
 target/linux/brcm2708/base-files/lib/brcm2708.sh   |   3 +
 target/linux/brcm2708/image/Makefile               |   7 +-
 .../0152-BCM270X_DT-Add-bcm2708-rpi-0-w.dts.patch  | 233 +++++++++++++++++++++
 5 files changed, 247 insertions(+), 2 deletions(-)
 create mode 100644 target/linux/brcm2708/patches-4.9/0152-BCM270X_DT-Add-bcm2708-rpi-0-w.dts.patch

diff --git a/target/linux/brcm2708/base-files/etc/board.d/02_network b/target/linux/brcm2708/base-files/etc/board.d/02_network
index 7642c06..0679c24 100755
--- a/target/linux/brcm2708/base-files/etc/board.d/02_network
+++ b/target/linux/brcm2708/base-files/etc/board.d/02_network
@@ -11,6 +11,9 @@ board_config_update
 board=$(brcm2708_board_name)
 
 case "$board" in
+rpi-0-w)
+	ucidef_set_interface_lan "wlan0"
+	;;
 rpi-b |\
 rpi-b-plus |\
 rpi-2-b |\
diff --git a/target/linux/brcm2708/base-files/etc/diag.sh b/target/linux/brcm2708/base-files/etc/diag.sh
index 2a866e4..dfcda54 100644
--- a/target/linux/brcm2708/base-files/etc/diag.sh
+++ b/target/linux/brcm2708/base-files/etc/diag.sh
@@ -8,7 +8,8 @@ set_state() {
 	case "$(brcm2708_board_name)" in
 	rpi-b |\
 	rpi-cm |\
-	rpi-zero)
+	rpi-zero |\
+	rpi-0-w)
 		status_led="led0"
 		;;
 	rpi-b-plus |\
diff --git a/target/linux/brcm2708/base-files/lib/brcm2708.sh b/target/linux/brcm2708/base-files/lib/brcm2708.sh
index ab7a23d..156d706 100644
--- a/target/linux/brcm2708/base-files/lib/brcm2708.sh
+++ b/target/linux/brcm2708/base-files/lib/brcm2708.sh
@@ -21,6 +21,9 @@ brcm2708_detect() {
 	"Raspberry Pi Zero Rev"*)
 		board_name="rpi-zero"
 		;;
+	"Raspberry Pi Zero W Rev"*)
+		board_name="rpi-0-w"
+		;;
 	"Raspberry Pi 2 Model B Rev"*)
 		board_name="rpi-2-b"
 		;;
diff --git a/target/linux/brcm2708/image/Makefile b/target/linux/brcm2708/image/Makefile
index 0b3f6a7..357bb5e 100644
--- a/target/linux/brcm2708/image/Makefile
+++ b/target/linux/brcm2708/image/Makefile
@@ -58,8 +58,13 @@ define Device/rpi
   DEVICE_TITLE := Raspberry Pi B/B+/CM/Zero
   DEVICE_DTS := bcm2708-rpi-b bcm2708-rpi-b-plus bcm2708-rpi-cm
 endef
+define Device/rpi-0-w
+  DEVICE_TITLE := Raspberry Pi Zero W
+  DEVICE_DTS := bcm2708-rpi-0-w
+  DEVICE_PACKAGES := brcmfmac-firmware-43430-sdio kmod-brcmfmac wpad-mini
+endef
 ifeq ($(SUBTARGET),bcm2708)
-  TARGET_DEVICES += rpi
+  TARGET_DEVICES += rpi rpi-0-w
 endif
 
 define Device/rpi-2
diff --git a/target/linux/brcm2708/patches-4.9/0152-BCM270X_DT-Add-bcm2708-rpi-0-w.dts.patch b/target/linux/brcm2708/patches-4.9/0152-BCM270X_DT-Add-bcm2708-rpi-0-w.dts.patch
new file mode 100644
index 0000000..e1b8af5
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.9/0152-BCM270X_DT-Add-bcm2708-rpi-0-w.dts.patch
@@ -0,0 +1,233 @@
+From 935c7ce84c982a26f567a03a58a1537424569938 Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil at raspberrypi.org>
+Date: Tue, 24 May 2016 16:30:05 +0100
+Subject: [PATCH] BCM270X_DT: Add bcm2708-rpi-0-w.dts
+
+Add DT support for the Pi Zero W. N.B. It will not be loaded
+automatically without a corresponding change to the firmware.
+
+Signed-off-by: Phil Elwell <phil at raspberrypi.org>
+---
+ arch/arm/boot/dts/Makefile            |   1 +
+ arch/arm/boot/dts/bcm2708-rpi-0-w.dts | 197 ++++++++++++++++++++++++++++++++++
+ 2 files changed, 198 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm2708-rpi-0-w.dts
+
+diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
+index c697c48..46228af 100644
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ 	bcm2708-rpi-b.dtb \
+ 	bcm2708-rpi-b-plus.dtb \
+ 	bcm2708-rpi-cm.dtb \
++	bcm2708-rpi-0-w.dtb \
+ 	bcm2709-rpi-2-b.dtb \
+ 	bcm2710-rpi-3-b.dtb \
+ 	bcm2710-rpi-cm3.dtb
+diff --git a/arch/arm/boot/dts/bcm2708-rpi-0-w.dts b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
+new file mode 100644
+index 0000000..db0f99d
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2708-rpi-0-w.dts
+@@ -0,0 +1,197 @@
++/dts-v1/;
++
++#include "bcm2708.dtsi"
++
++/ {
++	model = "Raspberry Pi Zero W";
++};
++
++&gpio {
++	sdhost_pins: sdhost_pins {
++		brcm,pins = <48 49 50 51 52 53>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_pins: spi0_pins {
++		brcm,pins = <9 10 11>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	spi0_cs_pins: spi0_cs_pins {
++		brcm,pins = <8 7>;
++		brcm,function = <1>; /* output */
++	};
++
++	i2c0_pins: i2c0 {
++		brcm,pins = <0 1>;
++		brcm,function = <4>;
++	};
++
++	i2c1_pins: i2c1 {
++		brcm,pins = <2 3>;
++		brcm,function = <4>;
++	};
++
++	i2s_pins: i2s {
++		brcm,pins = <18 19 20 21>;
++		brcm,function = <4>; /* alt0 */
++	};
++
++	sdio_pins: sdio_pins {
++		brcm,pins = <34 35 36 37 38 39>;
++		brcm,function = <7>; /* ALT3 = SD1 */
++		brcm,pull = <0 2 2 2 2 2>;
++	};
++
++	bt_pins: bt_pins {
++		brcm,pins = <43>;
++		brcm,function = <4>; /* alt0:GPCLK2 */
++		brcm,pull = <0>; /* none */
++	};
++
++	uart0_pins: uart0_pins {
++		brcm,pins = <30 31 32 33>;
++		brcm,function = <7>; /* alt3=UART0 */
++		brcm,pull = <2 0 0 2>; /* up none none up */
++	};
++
++	uart1_pins: uart1_pins {
++		brcm,pins;
++		brcm,function;
++		brcm,pull;
++	};
++
++	audio_pins: audio_pins {
++		brcm,pins = <>;
++		brcm,function = <>;
++	};
++};
++
++&sdhost {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdhost_pins>;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&mmc {
++	pinctrl-names = "default";
++	pinctrl-0 = <&sdio_pins>;
++	non-removable;
++	bus-width = <4>;
++	status = "okay";
++};
++
++&fb {
++	status = "okay";
++};
++
++&uart0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart0_pins &bt_pins>;
++	status = "okay";
++};
++
++&uart1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&uart1_pins>;
++	status = "okay";
++};
++
++&spi0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
++	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
++
++	spidev0: spidev at 0{
++		compatible = "spidev";
++		reg = <0>;	/* CE0 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <500000>;
++	};
++
++	spidev1: spidev at 1{
++		compatible = "spidev";
++		reg = <1>;	/* CE1 */
++		#address-cells = <1>;
++		#size-cells = <0>;
++		spi-max-frequency = <500000>;
++	};
++};
++
++&i2c0 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c0_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c1 {
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2c1_pins>;
++	clock-frequency = <100000>;
++};
++
++&i2c2 {
++	clock-frequency = <100000>;
++};
++
++&i2s {
++	#sound-dai-cells = <0>;
++	pinctrl-names = "default";
++	pinctrl-0 = <&i2s_pins>;
++};
++
++&random {
++	status = "okay";
++};
++
++&leds {
++	act_led: act {
++		label = "led0";
++		linux,default-trigger = "mmc0";
++		gpios = <&gpio 47 0>;
++	};
++};
++
++&hdmi {
++	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
++};
++
++&audio {
++	pinctrl-names = "default";
++	pinctrl-0 = <&audio_pins>;
++};
++
++/ {
++	chosen {
++		bootargs = "8250.nr_uarts=1";
++	};
++};
++
++/ {
++	__overrides__ {
++		uart0 = <&uart0>,"status";
++		uart1 = <&uart1>,"status";
++		i2s = <&i2s>,"status";
++		spi = <&spi0>,"status";
++		i2c0 = <&i2c0>,"status";
++		i2c1 = <&i2c1>,"status";
++		i2c2_iknowwhatimdoing = <&i2c2>,"status";
++		i2c0_baudrate = <&i2c0>,"clock-frequency:0";
++		i2c1_baudrate = <&i2c1>,"clock-frequency:0";
++		i2c2_baudrate = <&i2c2>,"clock-frequency:0";
++
++		act_led_gpio = <&act_led>,"gpios:4";
++		act_led_activelow = <&act_led>,"gpios:8";
++		act_led_trigger = <&act_led>,"linux,default-trigger";
++
++		audio = <&audio>,"status";
++		watchdog = <&watchdog>,"status";
++		random = <&random>,"status";
++		sd_overclock = <&sdhost>,"brcm,overclock-50:0";
++		sd_force_pio = <&sdhost>,"brcm,force-pio?";
++		sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
++		sd_debug     = <&sdhost>,"brcm,debug";
++	};
++};
+-- 
+2.10.2
+
-- 
2.10.2




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