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author | Alexander Shiyan <shc_work@mail.ru> | 2012-05-30 15:21:45 +0400 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2012-05-31 09:00:07 +0200 |
commit | 434782f84a8750c83b1d607f8f76f6537c6c26b7 (patch) | |
tree | 9a6cf633f0fbb5aa674a49db920fa79333af30ed | |
parent | 1ce796674583f4dc8ff219dd68864fc4ea34be49 (diff) | |
download | barebox-434782f84a8750c83b1d607f8f76f6537c6c26b7.tar.gz barebox-434782f84a8750c83b1d607f8f76f6537c6c26b7.tar.xz |
i.MX51 clock: Added USB clock to dump_clocks command.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r-- | 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 b691d37da2..a94b392cd7 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()); } |