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ARM: at91: clock: add PMC_PLLICPR init function

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To avoid the duplicated code, add the PMC_PLLICPR init function.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Tested-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
This commit is contained in:
Wenyou Yang 2016-02-02 12:46:12 +08:00 committed by Andreas Bießmann
parent 30f65c85de
commit c0b868c087
3 changed files with 15 additions and 0 deletions
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7
arch/arm/mach-at91/clock.c
View file

@ -112,3 +112,10 @@ void at91_usb_clk_init(u32 value)
writel(value, &pmc->usb);
}
void at91_pllicpr_init(u32 icpr)
{
struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
writel(icpr, &pmc->pllicpr);
}

7
arch/arm/mach-at91/include/mach/at91_pmc.h
View file

@ -246,4 +246,11 @@ typedef struct at91_pmc {
#define AT91_PMC_GCKRDY (1 << 24)
#define AT91_PMC_PROTKEY 0x504d4301 /* Activation Code */
/* PLL Charge Pump Current Register (PMC_PLLICPR) */
#define AT91_PMC_ICP_PLLA(x) (((x) & 0x3) << 0)
#define AT91_PMC_IPLL_PLLA(x) (((x) & 0x7) << 8)
#define AT91_PMC_ICP_PLLU(x) (((x) & 0x3) << 16)
#define AT91_PMC_IVCO_PLLU(x) (((x) & 0x3) << 24)
#endif

1
arch/arm/mach-at91/include/mach/clk.h
View file

@ -135,5 +135,6 @@ int at91_upll_clk_disable(void);
void at91_usb_clk_init(u32 value);
int at91_pllb_clk_enable(u32 pllbr);
int at91_pllb_clk_disable(void);
void at91_pllicpr_init(u32 icpr);
#endif /* __ASM_ARM_ARCH_CLK_H__ */