From 89cfd0f5757413093ad179478b80367d7bd34ecc Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 3 Dec 2013 18:26:13 -0200 Subject: mx6: clock: Fix the calculation of PLL_ENET frequency According to the mx6 quad reference manual, the DIV_SELECT field of register CCM_ANALOG_PLL_ENETn has the following meaning: "Controls the frequency of the ethernet reference clock. - 00 - 25MHz - 01 - 50MHz - 10 - 100MHz - 11 - 125MHz" Current logic does not handle the 25MHz case correctly, so fix it. Signed-off-by: Rabeeh Khoury Signed-off-by: Fabio Estevam --- arch/arm/cpu/armv7/mx6/clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/cpu/armv7/mx6/clock.c') diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index 873d9d0fd8..20c7e70a78 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -94,7 +94,7 @@ static u32 decode_pll(enum pll_clocks pll, u32 infreq) div = __raw_readl(&imx_ccm->analog_pll_enet); div &= BM_ANADIG_PLL_ENET_DIV_SELECT; - return (div == 3 ? 125000000 : 25000000 * (div << 1)); + return 25000000 * (div + (div >> 1) + 1); default: return 0; } -- cgit v1.2.1 From c655b816e55464bf615e875475b8ffa506a4455e Mon Sep 17 00:00:00 2001 From: Otavio Salvador Date: Mon, 16 Dec 2013 20:44:05 -0200 Subject: ARM: mx6: Allow enablement of FEC Anatop based clock for all MX6 The enable_fec_anatop_clock method should be available for all MX6 variant as it is not MX6 SoloLite specific. This moves the code out of the #ifdef/#endif and we make it conditional to CONFIG_FEC_MXC instead. Signed-off-by: Otavio Salvador Acked-by: Stefano Babic --- arch/arm/cpu/armv7/mx6/clock.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) (limited to 'arch/arm/cpu/armv7/mx6/clock.c') diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c index 20c7e70a78..fcc4f352c3 100644 --- a/arch/arm/cpu/armv7/mx6/clock.c +++ b/arch/arm/cpu/armv7/mx6/clock.c @@ -310,7 +310,18 @@ static u32 get_mmdc_ch0_clk(void) return freq / (podf + 1); } +#else +static u32 get_mmdc_ch0_clk(void) +{ + u32 cbcdr = __raw_readl(&imx_ccm->cbcdr); + u32 mmdc_ch0_podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH0_PODF_MASK) >> + MXC_CCM_CBCDR_MMDC_CH0_PODF_OFFSET; + + return get_periph_clk() / (mmdc_ch0_podf + 1); +} +#endif +#ifdef CONFIG_FEC_MXC int enable_fec_anatop_clock(void) { u32 reg = 0; @@ -339,16 +350,6 @@ int enable_fec_anatop_clock(void) return 0; } - -#else -static u32 get_mmdc_ch0_clk(void) -{ - u32 cbcdr = __raw_readl(&imx_ccm->cbcdr); - u32 mmdc_ch0_podf = (cbcdr & MXC_CCM_CBCDR_MMDC_CH0_PODF_MASK) >> - MXC_CCM_CBCDR_MMDC_CH0_PODF_OFFSET; - - return get_periph_clk() / (mmdc_ch0_podf + 1); -} #endif static u32 get_usdhc_clk(u32 port) -- cgit v1.2.1