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| author | Benoît Thébaudeau <benoit.thebaudeau@advansee.com> | 2012-09-27 10:23:08 +0000 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2012-10-15 11:54:11 -0700 |
| commit | f124e718f43297d60066974d3ccbbb721fb30c0c (patch) | |
| tree | 8e520586be8dd7120075ccd19f22f1db42994fc1 | |
| parent | 55c8df0cb14843d4e19af18e0431f3d9b293c22a (diff) | |
| download | u-boot-imx-f124e718f43297d60066974d3ccbbb721fb30c0c.zip u-boot-imx-f124e718f43297d60066974d3ccbbb721fb30c0c.tar.gz u-boot-imx-f124e718f43297d60066974d3ccbbb721fb30c0c.tar.bz2 | |
mx5 clocks: Fix get_ipg_per_clk()
This fixes the "IPG PERCLK" frequency printed by the clocks command. The issue
was that get_ipg_per_clk() used periph_clk instead of lp_apm in the case
CCM.CBCMR.perclk_lp_apm_sel is set.
It also fixes I²C support.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
| -rw-r--r-- | arch/arm/cpu/armv7/mx5/clock.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/arm/cpu/armv7/mx5/clock.c b/arch/arm/cpu/armv7/mx5/clock.c index e6eae7e..c5a93a0 100644 --- a/arch/arm/cpu/armv7/mx5/clock.c +++ b/arch/arm/cpu/armv7/mx5/clock.c @@ -315,16 +315,20 @@ static u32 get_ipg_clk(void) */ static u32 get_ipg_per_clk(void) { - u32 pred1, pred2, podf; + u32 freq, pred1, pred2, podf; if (readl(&mxc_ccm->cbcmr) & MXC_CCM_CBCMR_PERCLK_IPG_CLK_SEL) return get_ipg_clk(); - /* Fixme: not handle what about lpm*/ + + if (readl(&mxc_ccm->cbcmr) & MXC_CCM_CBCMR_PERCLK_LP_APM_CLK_SEL) + freq = get_lp_apm(); + else + freq = get_periph_clk(); podf = readl(&mxc_ccm->cbcdr); pred1 = MXC_CCM_CBCDR_PERCLK_PRED1_RD(podf); pred2 = MXC_CCM_CBCDR_PERCLK_PRED2_RD(podf); podf = MXC_CCM_CBCDR_PERCLK_PODF_RD(podf); - return get_periph_clk() / ((pred1 + 1) * (pred2 + 1) * (podf + 1)); + return freq / ((pred1 + 1) * (pred2 + 1) * (podf + 1)); } /* |