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From: Jaehoon Chung <jh80.chung@samsung.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/2] exynos: clock: fixed that cfg is set to wrong value.
Date: Thu, 06 Feb 2014 14:20:10 +0900	[thread overview]
Message-ID: <52F31B8A.6010002@samsung.com> (raw)

From: Inha Song <ideal.song@samsung.com>

This patch fixed that cfg value is set to wrong value.
Because it didn't read the related register.
(Based on Inha's patch : "arm:exynos:add missing readl")

Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
---
 arch/arm/cpu/armv7/exynos/clock.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/cpu/armv7/exynos/clock.c b/arch/arm/cpu/armv7/exynos/clock.c
index 6807ff3..61cd8cf 100644
--- a/arch/arm/cpu/armv7/exynos/clock.c
+++ b/arch/arm/cpu/armv7/exynos/clock.c
@@ -1114,6 +1114,7 @@ void exynos4_set_lcd_clk(void)
 	 * MIPI0_PRE_RATIO	[23:20]
 	 * set fimd ratio
 	 */
+	cfg = readl(&clk->div_lcd0);
 	cfg &= ~(0xf);
 	cfg |= 0x1;
 	writel(cfg, &clk->div_lcd0);
@@ -1176,6 +1177,7 @@ void exynos5_set_lcd_clk(void)
 	 * MIPI0_PRE_RATIO	[23:20]
 	 * set fimd ratio
 	 */
+	cfg = readl(&clk->div_disp1_0);
 	cfg &= ~(0xf);
 	cfg |= 0x0;
 	writel(cfg, &clk->div_disp1_0);
@@ -1236,6 +1238,7 @@ void exynos4_set_mipi_clk(void)
 	 * MIPI0_PRE_RATIO	[23:20]
 	 * set mipi ratio
 	 */
+	cfg = readl(&clk->div_lcd0);
 	cfg &= ~(0xf << 16);
 	cfg |= (0x1 << 16);
 	writel(cfg, &clk->div_lcd0);
-- 
1.7.9.5

             reply	other threads:[~2014-02-06  5:20 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-06  5:20 Jaehoon Chung [this message]
2014-02-10  7:16 ` [U-Boot] [PATCH 1/2] exynos: clock: fixed that cfg is set to wrong value Minkyu Kang

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