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 --- This patch supersedes http://patchwork.ozlabs.org/patch/177407/ . Changes for v2: - Consequences from the previous cleanup patches. - Improve detailed description.
.../arch/arm/cpu/armv7/mx5/clock.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git u-boot-imx-e1eb75b.orig/arch/arm/cpu/armv7/mx5/clock.c u-boot-imx-e1eb75b/arch/arm/cpu/armv7/mx5/clock.c index b155214..c7a3c36 100644 --- u-boot-imx-e1eb75b.orig/arch/arm/cpu/armv7/mx5/clock.c +++ u-boot-imx-e1eb75b/arch/arm/cpu/armv7/mx5/clock.c @@ -310,16 +310,20 @@ 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)); }
/*