From 1ce796674583f4dc8ff219dd68864fc4ea34be49 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Wed, 30 May 2012 15:21:44 +0400 Subject: i.MX51 clock: Added lp_apm clock support for frequency calculations. Signed-off-by: Alexander Shiyan Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/speed-imx51.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) (limited to 'arch') diff --git a/arch/arm/mach-imx/speed-imx51.c b/arch/arm/mach-imx/speed-imx51.c index 84f4892740..b691d37da2 100644 --- a/arch/arm/mach-imx/speed-imx51.c +++ b/arch/arm/mach-imx/speed-imx51.c @@ -24,6 +24,14 @@ static unsigned long fpm_get_rate(void) return ckil_get_rate() * 512; } +static unsigned long lp_apm_get_rate(void) +{ + if (ccm_readl(MX5_CCM_CCSR) & MX5_CCM_CCSR_LP_APM_SEL) + return fpm_get_rate(); + else + return osc_get_rate(); +} + static unsigned long pll_get_rate(void __iomem *pllbase) { long mfi, mfn, mfd, pdf, ref_clk, mfn_abs; @@ -123,7 +131,7 @@ unsigned long imx_get_uartclk(void) pll1_main_get_rate, pll2_sw_get_rate, pll3_sw_get_rate, - NULL); + lp_apm_get_rate); reg = ccm_readl(MX5_CCM_CSCDR1); prediv = ((reg & MX5_CCM_CSCDR1_UART_CLK_PRED_MASK) >> @@ -180,7 +188,7 @@ unsigned long imx_get_mmcclk(void) pll1_main_get_rate, pll2_sw_get_rate, pll3_sw_get_rate, - NULL); + lp_apm_get_rate); reg = ccm_readl(MX5_CCM_CSCDR1); prediv = ((reg & MX5_CCM_CSCDR1_ESDHC1_MSHC1_CLK_PRED_MASK) >> @@ -193,11 +201,12 @@ unsigned long imx_get_mmcclk(void) void imx_dump_clocks(void) { - printf("pll1: %ld\n", pll1_main_get_rate()); - printf("pll2: %ld\n", pll2_sw_get_rate()); - printf("pll3: %ld\n", pll3_sw_get_rate()); - printf("uart: %ld\n", imx_get_uartclk()); - printf("ipg: %ld\n", imx_get_ipgclk()); - printf("fec: %ld\n", imx_get_fecclk()); - printf("gpt: %ld\n", imx_get_gptclk()); + printf("pll1: %ld\n", pll1_main_get_rate()); + printf("pll2: %ld\n", pll2_sw_get_rate()); + printf("pll3: %ld\n", pll3_sw_get_rate()); + printf("lp_apm: %ld\n", lp_apm_get_rate()); + printf("uart: %ld\n", imx_get_uartclk()); + printf("ipg: %ld\n", imx_get_ipgclk()); + printf("fec: %ld\n", imx_get_fecclk()); + printf("gpt: %ld\n", imx_get_gptclk()); } -- cgit v1.2.3