On Mon, Apr 30, 2018 at 05:10:39PM +0530, Jagan Teki wrote:
> DE2 in A64 has clock control unit and behavior is
> same like H3/H5, so reuse the same in A64.
>
> Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
> ---
> arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 1b2ef28c42bd..67b80bbe5bf5 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -43,9 +43,11 @@
> */
>
> #include <dt-bindings/clock/sun50i-a64-ccu.h>
> +#include <dt-bindings/clock/sun8i-de2.h>
> #include <dt-bindings/clock/sun8i-r-ccu.h>
> #include <dt-bindings/interrupt-controller/arm-gic.h>
> #include <dt-bindings/reset/sun50i-a64-ccu.h>
> +#include <dt-bindings/reset/sun8i-de2.h>
>
> / {
> interrupt-parent = <&gic>;
> @@ -168,6 +170,19 @@
> #size-cells = <1>;
> ranges;
>
> + display_clocks: clock@1000000 {
> + compatible = "allwinner,sun50i-a64-de2-clk",
> + "allwinner,sun50i-h5-de2-clk";
The A64 was released before the H5, so that should be the other way
around.
> + reg = <0x01000000 0x100000>;
> + clocks = <&ccu CLK_DE>,
> + <&ccu CLK_BUS_DE>;
> + clock-names = "mod",
> + "bus";
> + resets = <&ccu RST_BUS_DE>;
> + #clock-cells = <1>;
> + #reset-cells = <1>;
> + };
> +
So it turns out we don't need the SRAM to access the CCU driver?
Maxime
--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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