[U-Boot] Relocating u-boot console

[Matthias Weißer]

Hello

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.

Regards,
Matthias Weißer