[U-Boot] Relocating u-boot console

[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 Wei?er

[U-Boot] Relocating u-boot console

[Mike Frysinger]

On Wednesday 14 October 2009 09:47:27 Matthias Wei?er 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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[U-Boot] Relocating u-boot console

[Matthias Weißer]

Mike Frysinger schrieb:
> On Wednesday 14 October 2009 09:47:27 Matthias Wei?er wrote:
>> 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

Ah. OK. That guided me into the right direction. To redirect the console 
to another serial port I had to set std{err,in,out} to eserialn.

Thanks,
Matthias