Signed-off-by: Alexander Shiyan <shc_work@xxxxxxx>
---
arch/arm/mach-imx/speed-imx51.c | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-imx/speed-imx51.c b/arch/arm/mach-imx/speed-imx51.c
index b691d37..a94b392 100644
--- a/arch/arm/mach-imx/speed-imx51.c
+++ b/arch/arm/mach-imx/speed-imx51.c
@@ -199,6 +199,28 @@ unsigned long imx_get_mmcclk(void)
return rate / (prediv * podf);
}
+unsigned long imx_get_usbclk(void)
+{
+ u32 reg, prediv, podf, rate;
+
+ reg = ccm_readl(MX5_CCM_CSCMR1);
+ reg &= MX5_CCM_CSCMR1_USBOH3_CLK_SEL_MASK;
+ reg >>= MX5_CCM_CSCMR1_USBOH3_CLK_SEL_OFFSET;
+ rate = get_rate_select(reg,
+ pll1_main_get_rate,
+ pll2_sw_get_rate,
+ pll3_sw_get_rate,
+ lp_apm_get_rate);
+
+ reg = ccm_readl(MX5_CCM_CSCDR1);
+ prediv = ((reg & MX5_CCM_CSCDR1_USBOH3_CLK_PRED_MASK) >>
+ MX5_CCM_CSCDR1_USBOH3_CLK_PRED_OFFSET) + 1;
+ podf = ((reg & MX5_CCM_CSCDR1_USBOH3_CLK_PODF_MASK) >>
+ MX5_CCM_CSCDR1_USBOH3_CLK_PODF_OFFSET) + 1;
+
+ return rate / (prediv * podf);
+}
+
void imx_dump_clocks(void)
{
printf("pll1: %ld\n", pll1_main_get_rate());
@@ -209,4 +231,5 @@ void imx_dump_clocks(void)
printf("ipg: %ld\n", imx_get_ipgclk());
printf("fec: %ld\n", imx_get_fecclk());
printf("gpt: %ld\n", imx_get_gptclk());
+ printf("usb: %ld\n", imx_get_usbclk());
}
--
1.7.3.4
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