[U-Boot] [PATCH v2 1/3] ARM: at91: clock: add PMC_PLLICPR init function

[Wenyou Yang]

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

Signed-off-by: Wenyou Yang <wenyou.yang at atmel.com>
---

Changes in v2:
 - move at91_pllicpr_init() definition to the common file, clock.c.
 - fix checkpatch errors.

 arch/arm/mach-at91/clock.c                 |    7 +++++++
 arch/arm/mach-at91/include/mach/at91_pmc.h |    7 +++++++
 arch/arm/mach-at91/include/mach/clk.h      |    1 +
 3 files changed, 15 insertions(+)

diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c
index b8f8d48..885d6fe 100644
--- a/arch/arm/mach-at91/clock.c
+++ b/arch/arm/mach-at91/clock.c
@@ -118,3 +118,10 @@ 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);
+}
diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h
index eb40194..7684f09 100644
--- a/arch/arm/mach-at91/include/mach/at91_pmc.h
+++ b/arch/arm/mach-at91/include/mach/at91_pmc.h
@@ -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
diff --git a/arch/arm/mach-at91/include/mach/clk.h b/arch/arm/mach-at91/include/mach/clk.h
index 64dec52..8577c74 100644
--- a/arch/arm/mach-at91/include/mach/clk.h
+++ b/arch/arm/mach-at91/include/mach/clk.h
@@ -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__ */
-- 
1.7.9.5