[U-Boot] why so little use of ft_system_setup()?

[Stephen Warren]

On 05/19/2016 12:19 PM, Robert P. J. Day wrote:
>
>    still crawling through the code related to FDTs, and while i see a
> pile of boards that define CONFIG_OF_SYSTEM_SETUP, i see very few that
> define the corresponding(?) ft_system_setup() routine.
>
> $ grep -r CONFIG_OF_SYSTEM_SETUP *

> configs/apalis_t30_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/paz00_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/plutux_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/venice2_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/p2571_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/beaver_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/ventana_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/p2371-0000_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/tec-ng_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/seaboard_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/dalmore_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/harmony_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/cardhu_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/p2371-2180_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/trimslice_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/colibri_t30_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/colibri_t20_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/whistler_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/tec_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/jetson-tk1_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/e2220-1170_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/medcom-wide_defconfig:CONFIG_OF_SYSTEM_SETUP=y
> configs/nyan-big_defconfig:CONFIG_OF_SYSTEM_SETUP=y

All of those are Tegra boards.

>    and yet ...
>
> $ grep -rw ft_system_setup *
> arch/arm/mach-tegra/board2.c:int ft_system_setup(void *blob, bd_t *bd)

... which link in that file.