于 2018年5月2日 GMT+08:00 下午7:32:50, Maxime Ripard <maxime.rip...@bootlin.com> 写到:
>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 <ja...@amarulasolutions.com>
>> ---
>> 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?
As now U-Boot claims SRAM, people may forget thus :-(
>
>Maxime
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