[U-Boot] [U-Boot, 36/36] rockchip: add common board file for rockchip platform

[Philipp Tomsich]

> We use common board/spl/tpl file for all rockchip SoCs,
> - all the SoC spec setting should move into SoC file like rk3288.c;
> - tpl is option and only purpose to init DRAM, clock, uart(option);
> - spl do secure relate one time init, boot device select, boot into
>   U-Boot or trust or OS in falcon mode;
> - board do boot mode detect, enable regulator, usb init and so on.
> 
> Signed-off-by: Kever Yang <kever.yang at rock-chips.com>
> ---
> 
>  arch/arm/mach-rockchip/Makefile |  23 +----
>  arch/arm/mach-rockchip/board.c  | 136 ++++++++++++++++++++++++++++
>  arch/arm/mach-rockchip/spl.c    | 195 ++++++++++++++++++++++++++++++++++++++++
>  arch/arm/mach-rockchip/tpl.c    | 111 +++++++++++++++++++++++
>  4 files changed, 445 insertions(+), 20 deletions(-)
>  create mode 100644 arch/arm/mach-rockchip/board.c
>  create mode 100644 arch/arm/mach-rockchip/spl.c
>  create mode 100644 arch/arm/mach-rockchip/tpl.c
> 

Acked-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>