[U-Boot] [PATCH] arm:exynos:fix: Fix clock calculation for Exynos4210 based targets.

Lukasz Majewski
2013-07-12T17:08:25Z

Provide proper setting for the APLL fout frequency calculation for
Exynos4 based targets (especially Exynos4210 - Trats board).

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Cc: Minkyu Kang <mk7.kang@samsung.com>
---
arch/arm/cpu/armv7/exynos/clock.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
index 9f07181..5a5cfa1 100644
--- a/arch/arm/cpu/armv7/exynos/clock.c
+++ b/arch/arm/cpu/armv7/exynos/clock.c
@@ -141,18 +141,17 @@ static int exynos_get_pll_clk(int pllreg, unsigned int r, unsigned int k)
fout = (m + k / div) * (freq / (p * (1 << s)));
} else {
/*
- * Exynos4210
+ * Exynos4412 / Exynos5250
* FOUT = MDIV * FIN / (PDIV * 2^SDIV)
*
- * Exynos4412 / Exynos5250
+ * Exynos4210
* FOUT = MDIV * FIN / (PDIV * 2^(SDIV-1))
*/
if (proid_is_exynos4210())
- fout = m * (freq / (p * (1 << s)));
- else
fout = m * (freq / (p * (1 << (s - 1))));
+ else
+ fout = m * (freq / (p * (1 << s)));
}
-
return fout;
}

--
1.7.10.4