#include <asm/arch/hardware.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/at91_pmc.h>
#include <asm/arch/hardware.h>
#include <asm/arch/at91_pio.h>
#include <asm/arch/at91_pmc.h>
writel(1 << AT91_ID_PIOA, &pmc->pcer);
pin = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK;
writel(1 << AT91_ID_PIOA, &pmc->pcer);
pin = AT91_PMX_AA_TWD | AT91_PMX_AA_TWCK;