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authorPeter Robinson <pbrobinson@gmail.com>2018-12-20 03:16:00 +0000
committerPeter Robinson <pbrobinson@gmail.com>2018-12-20 03:16:00 +0000
commit83989fccc2592bbec3df90db56d52b9dfed9647e (patch)
treedaeaf1e7cad0ecec3b4dcc11a89e872166beaeb5 /bcm2837-dts-add-Raspberry-Pi-3-A.patch
parent11488b8b258823ff5bf59f24dfbd36d87ccf964f (diff)
downloadkernel-83989fccc2592bbec3df90db56d52b9dfed9647e.tar.gz
kernel-83989fccc2592bbec3df90db56d52b9dfed9647e.tar.xz
kernel-83989fccc2592bbec3df90db56d52b9dfed9647e.zip
Initial support for Raspberry Pi model 3A+
Diffstat (limited to 'bcm2837-dts-add-Raspberry-Pi-3-A.patch')
-rw-r--r--bcm2837-dts-add-Raspberry-Pi-3-A.patch511
1 files changed, 511 insertions, 0 deletions
diff --git a/bcm2837-dts-add-Raspberry-Pi-3-A.patch b/bcm2837-dts-add-Raspberry-Pi-3-A.patch
new file mode 100644
index 000000000..705fca6cb
--- /dev/null
+++ b/bcm2837-dts-add-Raspberry-Pi-3-A.patch
@@ -0,0 +1,511 @@
+From patchwork Tue Dec 4 18:58:17 2018
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+From: Stefan Wahren <stefan.wahren@i2se.com>
+To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
+ Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
+ Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>,
+ Arnd Bergmann <arnd@arndb.de>
+Subject: [PATCH V3 1/3] dt-bindings: bcm: Add Raspberry Pi 3 A+
+Date: Tue, 4 Dec 2018 19:58:17 +0100
+Message-Id: <1543949899-13380-2-git-send-email-stefan.wahren@i2se.com>
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+Cc: Stefan Wahren <stefan.wahren@i2se.com>, devicetree@vger.kernel.org,
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+This adds the root properties for the Raspberry Pi 3 A+ .
+
+Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
+Reviewed-by: Eric Anholt <eric@anholt.net>
+Reviewed-by: Rob Herring <robh@kernel.org>
+---
+ Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt
+index 0dcc3ea..245328f 100644
+--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt
++++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt
+@@ -30,6 +30,10 @@ Raspberry Pi 2 Model B
+ Required root node properties:
+ compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
+
++Raspberry Pi 3 Model A+
++Required root node properties:
++compatible = "raspberrypi,3-model-a-plus", "brcm,bcm2837";
++
+ Raspberry Pi 3 Model B
+ Required root node properties:
+ compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
+
+From patchwork Tue Dec 4 18:58:18 2018
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+ id 1MTfgb-1gvyxH1xQz-00TyQt; Tue, 04 Dec 2018 19:58:54 +0100
+From: Stefan Wahren <stefan.wahren@i2se.com>
+To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
+ Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
+ Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>,
+ Arnd Bergmann <arnd@arndb.de>
+Subject: [PATCH V3 2/3] ARM: dts: add Raspberry Pi 3 A+
+Date: Tue, 4 Dec 2018 19:58:18 +0100
+Message-Id: <1543949899-13380-3-git-send-email-stefan.wahren@i2se.com>
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+Cc: Stefan Wahren <stefan.wahren@i2se.com>, devicetree@vger.kernel.org,
+ bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org,
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+The Raspberry Pi 3 A+ is similar to the Pi 3 B+ but has only 512 MB RAM,
+1 USB 2.0 port and no Ethernet.
+
+Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
+Reviewed-by: Eric Anholt <eric@anholt.net>
+---
+ arch/arm/boot/dts/Makefile | 1 +
+ arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts | 107 +++++++++++++++++++++++++++++
+ 2 files changed, 108 insertions(+)
+ create mode 100644 arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+
+diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
+index b0e966d..15bbd0d 100644
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -79,6 +79,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
+ bcm2835-rpi-a-plus.dtb \
+ bcm2835-rpi-cm1-io1.dtb \
+ bcm2836-rpi-2-b.dtb \
++ bcm2837-rpi-3-a-plus.dtb \
+ bcm2837-rpi-3-b.dtb \
+ bcm2837-rpi-3-b-plus.dtb \
+ bcm2837-rpi-cm3-io3.dtb \
+diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+new file mode 100644
+index 0000000..b2df7cf
+--- /dev/null
++++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts
+@@ -0,0 +1,107 @@
++// SPDX-License-Identifier: GPL-2.0
++/dts-v1/;
++#include "bcm2837.dtsi"
++#include "bcm2836-rpi.dtsi"
++#include "bcm283x-rpi-usb-host.dtsi"
++
++/ {
++ compatible = "raspberrypi,3-model-a-plus", "brcm,bcm2837";
++ model = "Raspberry Pi 3 Model A+";
++
++ chosen {
++ /* 8250 auxiliary UART instead of pl011 */
++ stdout-path = "serial1:115200n8";
++ };
++
++ memory {
++ reg = <0 0x20000000>;
++ };
++
++ leds {
++ act {
++ gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
++ };
++
++ pwr {
++ label = "PWR";
++ gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
++ };
++ };
++
++ wifi_pwrseq: wifi-pwrseq {
++ compatible = "mmc-pwrseq-simple";
++ reset-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
++ };
++};
++
++&firmware {
++ expgpio: gpio {
++ compatible = "raspberrypi,firmware-gpio";
++ gpio-controller;
++ #gpio-cells = <2>;
++ gpio-line-names = "BT_ON",
++ "WL_ON",
++ "STATUS_LED",
++ "",
++ "",
++ "CAM_GPIO0",
++ "CAM_GPIO1",
++ "";
++ status = "okay";
++ };
++};
++
++&hdmi {
++ hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
++};
++
++&pwm {
++ pinctrl-names = "default";
++ pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
++ status = "okay";
++};
++
++/* SDHCI is used to control the SDIO for wireless */
++&sdhci {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ pinctrl-names = "default";
++ pinctrl-0 = <&emmc_gpio34>;
++ status = "okay";
++ bus-width = <4>;
++ non-removable;
++ mmc-pwrseq = <&wifi_pwrseq>;
++
++ brcmf: wifi@1 {
++ reg = <1>;
++ compatible = "brcm,bcm4329-fmac";
++ };
++};
++
++/* SDHOST is used to drive the SD card */
++&sdhost {
++ pinctrl-names = "default";
++ pinctrl-0 = <&sdhost_gpio48>;
++ status = "okay";
++ bus-width = <4>;
++};
++
++/* uart0 communicates with the BT module */
++&uart0 {
++ pinctrl-names = "default";
++ pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
++ status = "okay";
++
++ bluetooth {
++ compatible = "brcm,bcm43438-bt";
++ max-speed = <2000000>;
++ shutdown-gpios = <&expgpio 0 GPIO_ACTIVE_HIGH>;
++ };
++};
++
++/* uart1 is mapped to the pin header */
++&uart1 {
++ pinctrl-names = "default";
++ pinctrl-0 = <&uart1_gpio14>;
++ status = "okay";
++};
+
+From patchwork Tue Dec 4 18:58:19 2018
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+ id 1MFJfN-1gjyQ33mR7-00FlVP; Tue, 04 Dec 2018 19:58:55 +0100
+From: Stefan Wahren <stefan.wahren@i2se.com>
+To: Rob Herring <robh+dt@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
+ Florian Fainelli <f.fainelli@gmail.com>, Ray Jui <rjui@broadcom.com>,
+ Scott Branden <sbranden@broadcom.com>, Eric Anholt <eric@anholt.net>,
+ Arnd Bergmann <arnd@arndb.de>
+Subject: [PATCH V3 3/3] arm64: dts: broadcom: Add reference to RPi 3 A+
+Date: Tue, 4 Dec 2018 19:58:19 +0100
+Message-Id: <1543949899-13380-4-git-send-email-stefan.wahren@i2se.com>
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+Cc: Stefan Wahren <stefan.wahren@i2se.com>, devicetree@vger.kernel.org,
+ bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org,
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+
+This adds a reference to the dts of the Raspberry Pi 3 A+,
+so we don't need to maintain the content in arm64.
+
+Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
+Reviewed-by: Eric Anholt <eric@anholt.net>
+---
+ arch/arm64/boot/dts/broadcom/Makefile | 3 ++-
+ arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-a-plus.dts | 2 ++
+ 2 files changed, 4 insertions(+), 1 deletion(-)
+ create mode 100644 arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-a-plus.dts
+
+diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
+index 667ca98..d1d31cc 100644
+--- a/arch/arm64/boot/dts/broadcom/Makefile
++++ b/arch/arm64/boot/dts/broadcom/Makefile
+@@ -1,5 +1,6 @@
+ # SPDX-License-Identifier: GPL-2.0
+-dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb \
++dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-a-plus.dtb \
++ bcm2837-rpi-3-b.dtb \
+ bcm2837-rpi-3-b-plus.dtb \
+ bcm2837-rpi-cm3-io3.dtb
+
+diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-a-plus.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-a-plus.dts
+new file mode 100644
+index 0000000..f0ec56a
+--- /dev/null
++++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-a-plus.dts
+@@ -0,0 +1,2 @@
++// SPDX-License-Identifier: GPL-2.0
++#include "arm/bcm2837-rpi-3-a-plus.dts"