From: Łukasz Majewski <l.majewski@samsung.com>
Date: Fri, 12 Jul 2013 17:08:25 +0000 (+0200)
Subject: arm:exynos:fix: Fix clock calculation for Exynos4210 based targets.
X-Git-Tag: v2013.07~19
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=f4eaf88e6d48ab2d0f978a25b916b92acdfd1df4;p=oweals%2Fu-boot.git

arm:exynos:fix: Fix clock calculation for Exynos4210 based targets.

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>
Acked-by: Minkyu Kang <mk7.kang@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
---

diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
index 9f07181988..5a5cfa1d36 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;
 }