Re: [linux-sunxi] [PATCH RFC 3/3] ARM: dts: sun8i: add hwspinlock device to sun8i-h3
From: Hans de Goede
Date: Fri Aug 12 2016 - 07:49:32 EST
Hi,
On 12-08-16 13:46, LABBE Corentin wrote:
Add the hwspinlock device tree node for the device present on H3.
Signed-off-by: LABBE Corentin <clabbe.montjoie@xxxxxxxxx>
---
arch/arm/boot/dts/sun8i-h3.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
index 439e8ed..c801389 100644
--- a/arch/arm/boot/dts/sun8i-h3.dtsi
+++ b/arch/arm/boot/dts/sun8i-h3.dtsi
@@ -489,6 +489,16 @@
status = "disabled";
};
+ hwspinlock: hwspinlock@1c18000 {
+ compatible = "allwinner,sun8i-hwspinlock";
+ reg = <0x01c18000 0x400>;
+ resets = <&ccu RST_BUS_SPINLOCK>;
+ reset-names = "ahb";
+ clocks = <&ccu CLK_BUS_SPINLOCK>;
+ clock-names = "ahb";
+ status = "disabled";
+ };
+
gic: interrupt-controller@01c81000 {
compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
reg = <0x01c81000 0x1000>,
Why status=disabled? If this is a core part of the SoC, which Linux
can use, then IMHO it should be always enabled, like e.g. we also
always enable the timers.
Regards,
Habs