Change linux debug log from UART2 to UART1.

Alexander Romanovskiy

Other Parts Discussed in Thread: OMAP-L138, OMAPL138, DA8XX

Hi,

I've got custom board. It's like LCDK, but rs232 is on UART1. I remade it temporary on UART2 and load u-boot and linux 3.3 from mcsdk with lcdk config. Everything work fine.

Now I remade u-boot to UART1, but can't remake Linux. I see nothing after "Starting kernel".

I remade some defaults in da850 lcdk config files, but can't find where is setting uart pins to pinmux registers.

Thanks!

over 12 years ago

0 Alexander Romanovskiy over 12 years ago

Intellectual 735 points

I found this article:

http://processors.wiki.ti.com/index.php/Enabling_UART1_on_AM18X/DA850/OMAP-L138_running_Linux

but everythig is done in mcsdk.

So as I understand Uart1 is working, I should just tell to kernel to send log to Uart1, no to Uart2.

0 Alexander Romanovskiy over 12 years ago in reply to Alexander Romanovskiy

Intellectual 735 points

/arch/arm/mach-davinci/include/mach/uncompress.h

ln99

DEBUG_LL_DA8XX(omapl138_lcdkboard, 2);

change 2 on 1.

0 Sivaraj Kuppuraj over 12 years ago in reply to Alexander Romanovskiy

TI__Mastermind 35645 points

Hi Alexander,

Thanks for your post.

Please ensure whether it logs to proper UART serial port (ttys2 or ttys1) and it needs appropriate kernel configuration to reflect those changes.

Thanks & regards,

Sivaraj K

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Change linux debug log from UART2 to UART1.