* [PATCH V2 1/3] dt-bindings: arm: bcm2835: Add Raspberry Pi Zero 2 W
2022-02-01 17:27 [PATCH V2 0/3] ARM: dts: Add Raspberry Pi Zero 2 W support Stefan Wahren
@ 2022-02-01 17:27 ` Stefan Wahren
2022-02-11 22:25 ` Florian Fainelli
2022-02-01 17:27 ` [PATCH V2 2/3] ARM: dts: " Stefan Wahren
2022-02-01 17:27 ` [PATCH V2 3/3] arm64: dts: broadcom: Add reference to RPi " Stefan Wahren
2 siblings, 1 reply; 7+ messages in thread
From: Stefan Wahren @ 2022-02-01 17:27 UTC (permalink / raw)
To: Rob Herring, Florian Fainelli, Nicolas Saenz Julienne
Cc: Ray Jui, Scott Branden, bcm-kernel-feedback-list, Arnd Bergmann,
Olof Johansson, Phil Elwell, devicetree, soc, linux-arm-kernel,
linux-rpi-kernel, Stefan Wahren
Add the Raspberry Pi Zero 2 W to DT schema.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Acked-by: Rob Herring <robh@kernel.org>
---
Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
index 5dc4824..8051a75 100644
--- a/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml
@@ -51,6 +51,7 @@ properties:
- raspberrypi,3-model-b-plus
- raspberrypi,3-compute-module
- raspberrypi,3-compute-module-lite
+ - raspberrypi,model-zero-2-w
- const: brcm,bcm2837
additionalProperties: true
--
2.7.4
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH V2 2/3] ARM: dts: Add Raspberry Pi Zero 2 W
2022-02-01 17:27 [PATCH V2 0/3] ARM: dts: Add Raspberry Pi Zero 2 W support Stefan Wahren
2022-02-01 17:27 ` [PATCH V2 1/3] dt-bindings: arm: bcm2835: Add Raspberry Pi Zero 2 W Stefan Wahren
@ 2022-02-01 17:27 ` Stefan Wahren
2022-02-11 22:25 ` Florian Fainelli
2022-02-01 17:27 ` [PATCH V2 3/3] arm64: dts: broadcom: Add reference to RPi " Stefan Wahren
2 siblings, 1 reply; 7+ messages in thread
From: Stefan Wahren @ 2022-02-01 17:27 UTC (permalink / raw)
To: Rob Herring, Florian Fainelli, Nicolas Saenz Julienne
Cc: Ray Jui, Scott Branden, bcm-kernel-feedback-list, Arnd Bergmann,
Olof Johansson, Phil Elwell, devicetree, soc, linux-arm-kernel,
linux-rpi-kernel, Stefan Wahren
The Raspberry Pi Zero 2 W mostly bases on the Raspberry Pi Zero W with
the following differences:
* Broadcom BCM2710A1, quad-core 64-bit SoC @ 1 GHz
* Synaptics BCM43436 (reported as BCM43430B0) IEEE 802.11b/g/n wireless LAN
Contrary to the Raspberry Pi 3 boards there is no GPIO expander.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts | 136 +++++++++++++++++++++++++++++
2 files changed, 137 insertions(+)
create mode 100644 arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 235ad55..fe31d14 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -93,6 +93,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
bcm2837-rpi-3-b.dtb \
bcm2837-rpi-3-b-plus.dtb \
bcm2837-rpi-cm3-io3.dtb \
+ bcm2837-rpi-zero-2-w.dtb \
bcm2711-rpi-400.dtb \
bcm2711-rpi-4-b.dtb \
bcm2711-rpi-cm4-io.dtb \
diff --git a/arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts b/arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts
new file mode 100644
index 0000000..4a76856
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022 Stefan Wahren <stefan.wahren@i2se.com>
+ */
+
+/dts-v1/;
+#include "bcm2837.dtsi"
+#include "bcm2836-rpi.dtsi"
+#include "bcm283x-rpi-usb-otg.dtsi"
+#include "bcm283x-rpi-wifi-bt.dtsi"
+
+/ {
+ compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
+ model = "Raspberry Pi Zero 2 W";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0 0x20000000>;
+ };
+
+ chosen {
+ /* 8250 auxiliary UART instead of pl011 */
+ stdout-path = "serial1:115200n8";
+ };
+
+ leds {
+ led-act {
+ gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
+ };
+ };
+};
+
+&bt {
+ shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
+};
+
+&gpio {
+ /*
+ * This is based on 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",
+ "HDMI_HPD_N",
+ "STATUS_LED_N",
+ "NC", /* GPIO30 */
+ "NC", /* GPIO31 */
+ "NC", /* GPIO32 */
+ "NC", /* GPIO33 */
+ "NC", /* GPIO34 */
+ "NC", /* GPIO35 */
+ "NC", /* GPIO36 */
+ "NC", /* GPIO37 */
+ "NC", /* GPIO38 */
+ "NC", /* GPIO39 */
+ "CAM_GPIO0", /* GPIO40 */
+ "WL_ON", /* GPIO41 */
+ "BT_ON", /* GPIO42 */
+ "WIFI_CLK", /* GPIO43 */
+ "SDA0", /* GPIO44 */
+ "SCL0", /* GPIO45 */
+ "SMPS_SCL",
+ "SMPS_SDA",
+ /* 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>;
+};
+
+&hdmi {
+ hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
+ power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
+ status = "okay";
+};
+
+&sdhci {
+ pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
+};
+
+&sdhost {
+ pinctrl-names = "default";
+ pinctrl-0 = <&sdhost_gpio48>;
+ bus-width = <4>;
+ status = "okay";
+};
+
+&uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
+};
+
+&uart1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&uart1_gpio14>;
+ status = "okay";
+};
+
+&wifi_pwrseq {
+ reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
+};
--
2.7.4
^ permalink raw reply related [flat|nested] 7+ messages in thread* [PATCH V2 3/3] arm64: dts: broadcom: Add reference to RPi Zero 2 W
2022-02-01 17:27 [PATCH V2 0/3] ARM: dts: Add Raspberry Pi Zero 2 W support Stefan Wahren
2022-02-01 17:27 ` [PATCH V2 1/3] dt-bindings: arm: bcm2835: Add Raspberry Pi Zero 2 W Stefan Wahren
2022-02-01 17:27 ` [PATCH V2 2/3] ARM: dts: " Stefan Wahren
@ 2022-02-01 17:27 ` Stefan Wahren
2022-02-11 22:25 ` Florian Fainelli
2 siblings, 1 reply; 7+ messages in thread
From: Stefan Wahren @ 2022-02-01 17:27 UTC (permalink / raw)
To: Rob Herring, Florian Fainelli, Nicolas Saenz Julienne
Cc: Ray Jui, Scott Branden, bcm-kernel-feedback-list, Arnd Bergmann,
Olof Johansson, Phil Elwell, devicetree, soc, linux-arm-kernel,
linux-rpi-kernel, Stefan Wahren
This adds a reference to the dts of the Raspberry Pi Zero 2 W,
so we don't need to maintain the content in arm64.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
arch/arm64/boot/dts/broadcom/Makefile | 3 ++-
arch/arm64/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
create mode 100644 arch/arm64/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index c688203..5082fcd 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -5,7 +5,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
bcm2837-rpi-3-a-plus.dtb \
bcm2837-rpi-3-b.dtb \
bcm2837-rpi-3-b-plus.dtb \
- bcm2837-rpi-cm3-io3.dtb
+ bcm2837-rpi-cm3-io3.dtb \
+ bcm2837-rpi-zero-2-w.dtb
subdir-y += bcm4908
subdir-y += northstar2
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts
new file mode 100644
index 0000000..307ae69
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "arm/bcm2837-rpi-zero-2-w.dts"
--
2.7.4
^ permalink raw reply related [flat|nested] 7+ messages in thread