Merge branch 'karo-tx-uboot' into kc-merge

[karo-tx-uboot.git] / arch / arm / cpu / armv7 / at91 / clock.c

diff --git a/arch/arm/cpu/armv7/at91/clock.c b/arch/arm/cpu/armv7/at91/clock.c
index 36ed4a639446597085384023e3631eec24d64d00..2cdddb25048964364d1155dc6a76e762890be707 100644 (file)
--- a/arch/arm/cpu/armv7/at91/clock.c
+++ b/arch/arm/cpu/armv7/at91/clock.c
@@ -111,6 +111,35 @@ int at91_clock_init(unsigned long main_clock)
        return 0;
 }
 
+void at91_plla_init(u32 pllar)
+{
+       struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+
+       writel(pllar, &pmc->pllar);
+       while (!(readl(&pmc->sr) & (AT91_PMC_LOCKA | AT91_PMC_MCKRDY)))
+               ;
+}
+
+void at91_mck_init(u32 mckr)
+{
+       struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+       u32 tmp;
+
+       tmp = readl(&pmc->mckr);
+       tmp &= ~(AT91_PMC_MCKR_CSS_MASK  |
+                AT91_PMC_MCKR_PRES_MASK |
+                AT91_PMC_MCKR_MDIV_MASK |
+                AT91_PMC_MCKR_PLLADIV_2);
+       tmp |= mckr & (AT91_PMC_MCKR_CSS_MASK  |
+                      AT91_PMC_MCKR_PRES_MASK |
+                      AT91_PMC_MCKR_MDIV_MASK |
+                      AT91_PMC_MCKR_PLLADIV_2);
+       writel(tmp, &pmc->mckr);
+
+       while (!(readl(&pmc->sr) & AT91_PMC_MCKRDY))
+               ;
+}
+
 void at91_periph_clk_enable(int id)
 {
        struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;