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| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2010-08-16 15:54:06 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2010-08-17 09:23:54 +0200 |
| commit | c56702de106b4fde301282f7ea60412276481442 (patch) | |
| tree | ec7b84f97a5012c4d3ad0554feea45bee4e65f57 | |
| parent | c96c1e394fa72bd995154af7143873945a3fa89d (diff) | |
| download | linux-c56702de106b4fde301282f7ea60412276481442.tar.gz linux-c56702de106b4fde301282f7ea60412276481442.tar.bz2 linux-c56702de106b4fde301282f7ea60412276481442.zip | |
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>
| -rw-r--r-- | arch/arm/mach-mx3/clock-imx35.c | 4 |
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 e582ceb6e0c1..1d311b77b40e 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]; |