[PATCH 4/4] ARM: mvebu: add Device Tree description of RTC on Armada 38x

Hi Arnaud,

On 14/01/2015 00:03, Arnaud Ebalard wrote:

Hi Gregory,

Gregory CLEMENT [off-list ref] writes:

quoted

The Marvell Armada 38x SoCs contains an RTC which differs from the RTC
used in the other mvebu SoCs until now. This commit adds the Device
Tree description of this interface at the SoC level.

Signed-off-by: Gregory CLEMENT <redacted>
---
 arch/arm/boot/dts/armada-38x.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index 04fe80d101f8..22909add8889 100644
--- a/arch/arm/boot/dts/armada-38x.dtsi
+++ b/arch/arm/boot/dts/armada-38x.dtsi

@@ -466,6 +466,12 @@
 				clocks = <&gateclk 4>;
 			};
 
+			rtc at 184a8 {
+				compatible = "marvell,armada-380-rtc";
+				reg = <0xa3800 0x20>, <0x184a0 0x0c>;
+				interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+			};
+

Out of curiosity, why not naming the node rtc at a3800? Main argument:
least expectation principle when reading the .dtsi and expecting
increasing addresses. Or did I miss sth else?

It was a mistake, I should have used the 0xa3800 offset to name it because
most of the RTC registers are located here.


Thanks,

Gregory

quoted

 			sata at a8000 {
 				compatible = "marvell,armada-380-ahci";
 				reg = <0xa8000 0x2000>;

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com