Kever Yang 于2019年3月29日周五 下午10:52写道：
> TPL need dmc to init ddr sdram, and emmc, boot-order.
>
> Signed-off-by: Kever Yang
> ---
>
> arch/arm/dts/rk3368-px5-evb-u-boot.dtsi | 29 +
> 1 file changed, 29 insertions(+)
>
>
Tested-by: Andy Yan
> diff --git a/arch/arm/dts/rk3368-px5-evb-u-boot.dtsi
> b/arch/arm/dts/rk3368-px5-evb-u-boot.dtsi
> index 7495781454..18b841864c 100644
> --- a/arch/arm/dts/rk3368-px5-evb-u-boot.dtsi
> +++ b/arch/arm/dts/rk3368-px5-evb-u-boot.dtsi
> @@ -2,6 +2,27 @@
> /*
> * (C) Copyright 2017 Theobroma Systems Design und Consulting GmbH
> */
> +/ {
> + chosen {
> + u-boot,spl-boot-order = &emmc;
> + };
> +};
> +
> +&dmc {
> + u-boot,dm-pre-reloc;
> +
> + /*
> +* PX5-evb(2GB) need to use CBRD mode, or else the dram is not
> correct
> +* See doc/device-tree-bindings/clock/rockchip,rk3368-dmc.txt for
> +* details on the 'rockchip,memory-schedule' property and how it
> +* affects the physical-address to device-address mapping.
> +*/
> + rockchip,memory-schedule = ;
> + rockchip,ddr-frequency = <8>;
> + rockchip,ddr-speed-bin = ;
> +
> + status = "okay";
> +};
>
> &pinctrl {
> u-boot,dm-pre-reloc;
> @@ -20,6 +41,10 @@
> u-boot,dm-pre-reloc;
> };
>
> +&sgrf {
> + u-boot,dm-pre-reloc;
> +};
> +
> &cru {
> u-boot,dm-pre-reloc;
> };
> @@ -31,3 +56,7 @@
> &uart4 {
> u-boot,dm-pre-reloc;
> };
> +
> +&emmc {
> + u-boot,dm-pre-reloc;
> +};
> --
> 2.20.1
>
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