From: Alexander Shiyan <shc_work@mail.ru>
To: barebox@lists.infradead.org
Subject: [PATCH 1/2] i.MX51 clock: Added lp_apm clock support for frequency calculations.
Date: Wed, 30 May 2012 15:21:44 +0400 [thread overview]
Message-ID: <1338376905-24331-1-git-send-email-shc_work@mail.ru> (raw)
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
---
arch/arm/mach-imx/speed-imx51.c | 27 ++++++++++++++++++---------
1 files changed, 18 insertions(+), 9 deletions(-)
diff --git a/arch/arm/mach-imx/speed-imx51.c b/arch/arm/mach-imx/speed-imx51.c
index 84f4892..b691d37 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());
}
--
1.7.3.4
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next reply other threads:[~2012-05-30 11:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 11:21 Alexander Shiyan [this message]
2012-05-30 11:21 ` [PATCH 2/2] i.MX51 clock: Added USB clock to dump_clocks command Alexander Shiyan
2012-05-31 7:00 ` [PATCH 1/2] i.MX51 clock: Added lp_apm clock support for frequency calculations Sascha Hauer
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