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authorBo Shen <voice.shen@atmel.com>2014-10-24 16:13:26 +0800
committerTom Rini <trini@ti.com>2014-11-17 08:47:16 -0500
commitda79fa4d7736601b1e484dc23838f6976b1d761b (patch)
tree5ef91a826517daea092a3375285e80f22c524f87 /arch
parenta5f35d63f2ec0f95162da924d346922d5888aa38 (diff)
downloadblackbird-obmc-uboot-da79fa4d7736601b1e484dc23838f6976b1d761b.tar.gz
blackbird-obmc-uboot-da79fa4d7736601b1e484dc23838f6976b1d761b.zip
ARM: atmel: spl: make css field configurable
The clock source for master clock can be slow clock, main clock, plla clock or upll clock. So, make the clock source selection field in mckr can be configured. Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/at91-common/spl.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/arm/cpu/at91-common/spl.c b/arch/arm/cpu/at91-common/spl.c
index 57fb04106d..81f5f53804 100644
--- a/arch/arm/cpu/at91-common/spl.c
+++ b/arch/arm/cpu/at91-common/spl.c
@@ -76,10 +76,12 @@ void at91_mck_init(u32 mckr)
u32 tmp;
tmp = readl(&pmc->mckr);
- tmp &= ~(AT91_PMC_MCKR_PRES_MASK |
+ 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_PRES_MASK |
+ 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);
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