I have the same problem

I have already set the GPIO bank registers. But it seems that the same way 
don't works for UART ones.

root@beaglebone:/sys/class > devmem2 0x48024008
/dev/mem opened.
Memory mapped at address 0xb6f10000.
Bus error

so strange!

On Friday, November 22, 2013 3:49:50 PM UTC+1, Andrey wrote:
>
> Hello, 
>
> I have a problem, how can I access the UART registers on a BeagleBone 
> Black? I need to  change UART modes described in 
>  in:  TI AM335x ARM A8 Microprocessors technical reference manual 
>
> example of instructions. 
> Disable the UART before accessing the UARTi.UART_DLL and UARTi.UART_DLH 
> registers:
> Set the UART_MDR1[2:0] MODE_SELECT bit field to 0x7.
>
> Thanks,
>
>

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