void at91_periph_clk_enable(int id)
{
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+ u32 regval;
- if (id > 31)
- writel(1 << (id - 32), &pmc->pcer1);
- else
- writel(1 << id, &pmc->pcer);
+ if (id > AT91_PMC_PCR_PID_MASK)
+ return;
+
+ regval = AT91_PMC_PCR_EN | AT91_PMC_PCR_CMD_WRITE | id;
+
+ writel(regval, &pmc->pcr);
+}
+
+void at91_periph_clk_disable(int id)
+{
+ struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+ u32 regval;
+
+ if (id > AT91_PMC_PCR_PID_MASK)
+ return;
+
+ regval = AT91_PMC_PCR_CMD_WRITE | id;
+
+ writel(regval, &pmc->pcr);
}