[U-Boot-Users] AT91RM9200 USART3

[Balajee Premraj]

Hi, 

we are trying to bringup the USART3 of the AT91RM9200 cpu as the debug
console.

We extended the sources accordingly as it was done for USART0 and
USART1.

#ifdef CONFIG_USART3
        *AT91C_PIOA_PDR = AT91C_PIO_PA5 | AT91C_PIO_PA6;
        *AT91C_PIOA_BSR = AT91C_PIO_PA5 | AT91C_PIO_PA6; /* hardware is
connected on PA5 and PA6, so selecting the peripheral B functionality */
        *AT91C_PMC_PCER |= 1 << AT91C_ID_USART3;        /* enable clock
*/
#endif

After making the changes, we don't see the USART 3 working as expected,
we don't see any signals coming on the TXD and RXD ports

We started reading the registers, for some reason the PMC_PCER turns out
to be zero,

Is there anyone aware about any USART 3 related issues for AT91RM9200.

Thanks,Balajee