summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/bcm2835-rpi-b.dts
diff options
context:
space:
mode:
authorSimon Arlott <simon@fire.lp0.eu>2012-05-26 11:04:43 +0400
committerStephen Warren <swarren@wwwdotorg.org>2012-09-20 05:08:27 +0400
commitec9653b8476bf526dde7bdefbc2be6b7aaa34db7 (patch)
tree648b35803beb4ae30ad11ae1932645fc31fe0b0b /arch/arm/boot/dts/bcm2835-rpi-b.dts
parent55d512e245bc7699a8800e23df1a24195dd08217 (diff)
downloadlinux-ec9653b8476bf526dde7bdefbc2be6b7aaa34db7.tar.xz
ARM: add infra-structure for BCM2835 and Raspberry Pi
The BCM2835 is an ARM SoC from Broadcom. This patch adds very basic support for this SoC. http://www.broadcom.com/products/BCM2835 http://www.raspberrypi.org/wp-content/uploads/2012/02/BCM2835-ARM-Peripherals.pdf Note that the documentation in the latter .pdf assumes the MMU setup that's used on the "VideoCore" companion processor, and does not document physical peripheral addresses. Subtract 0x5e000000 to obtain the physical addresses. This is accounted for by the ranges property in the /soc node in the device tree. The BCM2835 SoC is used in the Raspberry Pi. This patch also adds a minimal device tree for this board; enough to see some very early kernel boot messages through earlyprintk. However, this patch does not yet provide a useful booting system. http://www.raspberrypi.org/. This patch was extracted from git://github.com/lp0/linux.git branch rpi-split from 3-4 months ago, and significantly stripped down and modified since. Signed-off-by: Chris Boot <bootc@bootc.net> Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Dom Cobley <popcornmix@gmail.com> Signed-off-by: Dom Cobley <dc4@broadcom.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/boot/dts/bcm2835-rpi-b.dts')
-rw-r--r--arch/arm/boot/dts/bcm2835-rpi-b.dts12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
new file mode 100644
index 000000000000..7dd860f83f96
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -0,0 +1,12 @@
+/dts-v1/;
+/memreserve/ 0x0c000000 0x04000000;
+/include/ "bcm2835.dtsi"
+
+/ {
+ compatible = "raspberrypi,model-b", "brcm,bcm2835";
+ model = "Raspberry Pi Model B";
+
+ memory {
+ reg = <0 0x10000000>;
+ };
+};