[U-Boot] Relocating u-boot console
Mike Frysinger
vapier at gentoo.org
Wed Oct 14 16:00:45 CEST 2009
On Wednesday 14 October 2009 09:47:27 Matthias Weißer wrote:
> Is it possible to relocate the u-boot console depending on the state of
> some GPIO pins (e.g. in board_init or board_late_init)? Currently I have
> the following serial configuration for my board:
>
> #define CONFIG_SERIAL_MULTI
> #define CONFIG_SYS_NS16550
> #define CONFIG_SYS_NS16550_SERIAL
> #define CONFIG_SYS_NS16550_REG_SIZE (-4)
> #define CONFIG_SYS_NS16550_CLK CONFIG_JADE_IOCLK
> #define CONFIG_SYS_NS16550_COM1 0xfffe1000
> #define CONFIG_SYS_NS16550_COM2 0xfff50000
> #define CONFIG_SYS_NS16550_COM3 0xfff51000
> #define CONFIG_SYS_NS16550_COM4 0xfff43000
> #define CONFIG_CONS_INDEX 4
>
> This results in a console on COM4. Now I would like to have the console
> on COM1 under some circumstances for maintanance reasons.
if your devices fit into the stdio framework, simply change the
std{err,in,out} env vars in your board code
-mike
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