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authorMarc Kleine-Budde <mkl@pengutronix.de>2010-08-16 15:54:06 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2010-08-17 09:23:54 +0200
commitc56702de106b4fde301282f7ea60412276481442 (patch)
treeec7b84f97a5012c4d3ad0554feea45bee4e65f57 /arch/arm
parentc96c1e394fa72bd995154af7143873945a3fa89d (diff)
downloadop-kernel-dev-c56702de106b4fde301282f7ea60412276481442.zip
op-kernel-dev-c56702de106b4fde301282f7ea60412276481442.tar.gz
clock-imx35: correct arm and ahb clock calculation
According to the Datasheet: "i.MX35 (MCIMX35) Multimedia Applications Processor Reference Manual, Rev. 2" "Figure 14-24. Clock Control And Gating" change the result of get_rate_ahb based on the frequency returned by get_rate_arm to calculate the proper rate. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-mx3/clock-imx35.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c
index e582ceb..1d311b7 100644
--- a/arch/arm/mach-mx3/clock-imx35.c
+++ b/arch/arm/mach-mx3/clock-imx35.c
@@ -155,7 +155,7 @@ static unsigned long get_rate_arm(void)
aad = &clk_consumer[(pdr0 >> 16) & 0xf];
if (aad->sel)
- fref = fref * 2 / 3;
+ fref = fref * 3 / 4;
return fref / aad->arm;
}
@@ -164,7 +164,7 @@ static unsigned long get_rate_ahb(struct clk *clk)
{
unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0);
struct arm_ahb_div *aad;
- unsigned long fref = get_rate_mpll();
+ unsigned long fref = get_rate_arm();
aad = &clk_consumer[(pdr0 >> 16) & 0xf];
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