On Tue, 14 Feb 2023 00:19:30 +0100
Bastian Germann <bage@xxxxxxxxxx> wrote:
Hi,
> Add the hwspinlock to A64 which is already implemented for A31.
>
> Signed-off-by: Bastian Germann <bage@xxxxxxxxxx>
> ---
> arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 77b5349f6087..d4be8be0f2f3 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -851,6 +851,16 @@ wdt0: watchdog@1c20ca0 {
> clocks = <&osc24M>;
> };
>
> + hwspinlock: hwlock@1c18000 {
> + compatible = "allwinner,sun6i-a31-hwspinlock";
I wonder if we should add a more specific compatible string here
(sun50i-a64-hwspinlock), with the existing one as a fallback.
Checked the address and the clock/reset against the manual.
I am not entirely sure if it's the best practice to unconditionally
enable those devices, but since it needs explicit consumers to be used,
it's probably fine.
Cheers,
Andre
> + reg = <0x01c18000 0x1000>;
> + clocks = <&ccu CLK_BUS_SPINLOCK>;
> + clock-names = "ahb";
> + resets = <&ccu RST_BUS_SPINLOCK>;
> + reset-names = "ahb";
> + #hwlock-cells = <1>;
> + };
> +
> spdif: spdif@1c21000 {
> #sound-dai-cells = <0>;
> compatible = "allwinner,sun50i-a64-spdif",
