Hello Wenyou,
Am 09.12.2015 um 08:38 schrieb Wenyou Yang:
To avoid the duplicated code, add the PMC_PLLICPR init function.
Signed-off-by: Wenyou Yang <[email protected]>
---
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(+)
Tested on the smartweb board, see log:
http://xeidos.ddns.net/buildbot/builders/smartweb_dfu/builds/29/steps/shell/logs/tbotlog
Tested-by: Heiko Schocher <[email protected]>
bye,
Heiko
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__ */
--
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