[U-Boot-Users] Enabling UART0 and UART1

[U-Boot-Users] Enabling UART0 and UART1

[Sean]

Hi All,

I have enabled both UART0 and UART 1 using the CONFIG_SERIAL_MULTI in my
board specific header file. The board is based on PPC 440GX processor. I
used the serial1_puts and serial1_getc to access the UART1 but without
access. Does anybody have used this functions before?

Thanks,

-- Sean
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[U-Boot-Users] Enabling UART0 and UART1

[Stefan Roese]

On Friday 15 February 2008, Sean wrote:
> I have enabled both UART0 and UART 1 using the CONFIG_SERIAL_MULTI in my
> board specific header file. The board is based on PPC 440GX processor. I
> used the serial1_puts and serial1_getc to access the UART1 but without
> access. Does anybody have used this functions before?

Yes, this was tested successfully on multiple 4xx platforms. I don't remember 
testing it on a 440GX though. Could be that the pin multiplexing is not 
initialized correctly. Please recheck that the GPIO configuration and the PFC 
registers are setup correctly for UART1.

Best regards,
Stefan

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