u-boot/arch/arm/dts/rk3368-px5-evb-u-boot.dtsi
Andy Yan afe18f205e rockchip: px5: enable spl-fifo-mode for emmc for px5-evb
We need load some parts of ATF to sram, but rockchip
dwmmc controllers can't do dma to non-ddr addresses
space, so set the mmc controller into fifo mode in spl.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-12-05 23:53:07 +08:00

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// SPDX-License-Identifier: GPL-2.0+ OR X11
/*
* (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 = <DMC_MSCH_CBRD>;
rockchip,ddr-frequency = <800000000>;
rockchip,ddr-speed-bin = <DDR3_1600K>;
status = "okay";
};
&pinctrl {
u-boot,dm-pre-reloc;
};
&service_msch {
u-boot,dm-pre-reloc;
};
&dmc {
u-boot,dm-pre-reloc;
status = "okay";
};
&pmugrf {
u-boot,dm-pre-reloc;
};
&sgrf {
u-boot,dm-pre-reloc;
};
&cru {
u-boot,dm-pre-reloc;
};
&grf {
u-boot,dm-pre-reloc;
};
&uart4 {
u-boot,dm-pre-reloc;
};
&emmc {
/* mmc to sram can't do dma, prevent aborts transferring TF-A parts */
u-boot,spl-fifo-mode;
u-boot,dm-pre-reloc;
};
&timer0 {
u-boot,dm-pre-reloc;
clock-frequency = <24000000>;
status = "okay";
};