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bcm2835: Add Broadcom BCM2835 RNG to the device tree

Message ID 1364451124-5039-1-git-send-email-lkundrak@v3.sk (mailing list archive)
State New, archived
Headers show

Commit Message

Lubomir Rintel March 28, 2013, 6:12 a.m. UTC 
This adds a device tree binding for random number generator present on Broadcom
BCM2835 SoC, used in Raspberry Pi and Roku 2 devices.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-rpi-kernel@lists.infradead.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
---
Changes for v2:
    - Split out from the driver changeset
    - Added documentation

Changes for v3:
    - Moved documentation away to the driver commit

 arch/arm/boot/dts/bcm2835.dtsi |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

Comments

Stephen Warren April 2, 2013, 2:38 a.m. UTC | #1 
On 03/28/2013 12:12 AM, Lubomir Rintel wrote:
> This adds a device tree binding for random number generator present on Broadcom
> BCM2835 SoC, used in Raspberry Pi and Roku 2 devices.

FYI, I intend to apply this patch to the bcm2835 tree whenever the RNG
driver itself is applied to the hw_random tree. If you could ping me
when that happens to jog my memory, that'd be great. Thanks.
Stephen Warren April 3, 2013, 6:28 a.m. UTC | #2 
On 03/28/2013 12:12 AM, Lubomir Rintel wrote:
> This adds a device tree binding for random number generator present on Broadcom
> BCM2835 SoC, used in Raspberry Pi and Roku 2 devices.

Applied to bcm2835's for-3.10/dt tree, with some slight fixups to the
patch subject and description word-wrapping.
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Patch

diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 7e0481e..dc22336 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -34,6 +34,11 @@ 
 			reg = <0x7e100000 0x28>;
 		};
 
+		rng {
+			compatible = "brcm,bcm2835-rng";
+			reg = <0x7e104000 0x10>;
+		};
+
 		uart@20201000 {
 			compatible = "brcm,bcm2835-pl011", "arm,pl011", "arm,primecell";
 			reg = <0x7e201000 0x1000>;