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ARM: bcm2835: Add devicetree for the Raspberry Pi 3. 

While this devicetree also works for booting in 32-bit mode, it's
placed in arm64 since it's a 64-bit CPU (as suggested by Arnd).

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Warren <swarren@wwwdotorg.org> (v1)
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Eric Anholt 2016-06-07 13:05:45 +02:00
parent 2f4cd8d0a5
commit 9d56c22a78
3 changed files with 106 additions and 0 deletions
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1
arch/arm64/boot/dts/broadcom/Makefile
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@ -1,3 +1,4 @@
dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb
dtb-$(CONFIG_ARCH_BCM_IPROC) += ns2-svk.dtb
dtb-$(CONFIG_ARCH_VULCAN) += vulcan-eval.dtb

29
arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts Normal file
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@ -0,0 +1,29 @@
/dts-v1/;
#include "bcm2837.dtsi"
#include "../../../../arm/boot/dts/bcm2835-rpi.dtsi"
/ {
compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
model = "Raspberry Pi 3 Model B";
memory {
reg = <0 0x40000000>;
};
leds {
act {
gpios = <&gpio 47 0>;
};
pwr {
label = "PWR";
gpios = <&gpio 35 0>;
default-state = "keep";
linux,default-trigger = "default-on";
};
};
};
&uart1 {
status = "okay";
};

76
arch/arm64/boot/dts/broadcom/bcm2837.dtsi Normal file
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@ -0,0 +1,76 @@
#include "../../../../arm/boot/dts/bcm283x.dtsi"
/ {
compatible = "brcm,bcm2836";
soc {
ranges = <0x7e000000 0x3f000000 0x1000000>,
<0x40000000 0x40000000 0x00001000>;
dma-ranges = <0xc0000000 0x00000000 0x3f000000>;
local_intc: local_intc {
compatible = "brcm,bcm2836-l1-intc";
reg = <0x40000000 0x100>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&local_intc>;
};
};
timer {
compatible = "arm,armv7-timer";
interrupt-parent = <&local_intc>;
interrupts = <0>, // PHYS_SECURE_PPI
<1>, // PHYS_NONSECURE_PPI
<3>, // VIRT_PPI
<2>; // HYP_PPI
always-on;
};
cpus: cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <0>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000d8>;
};
cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <1>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000e0>;
};
cpu2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <2>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000e8>;
};
cpu3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a53";
reg = <3>;
enable-method = "spin-table";
cpu-release-addr = <0x0 0x000000f0>;
};
};
};
/* Make the BCM2835-style global interrupt controller be a child of the
* CPU-local interrupt controller.
*/
&intc {
compatible = "brcm,bcm2836-armctrl-ic";
reg = <0x7e00b200 0x200>;
interrupt-parent = <&local_intc>;
interrupts = <8>;
};