[PATCH v2 1/7] add i2c clock support

Sascha Hauer s.hauer at pengutronix.de
Mon Feb 27 13:59:20 EST 2012


Applied this series.

Thanks

Sascha

On Mon, Feb 27, 2012 at 09:20:07AM +0100, Eric Bénard wrote:
> Signed-off-by: Eric Bénard <eric at eukrea.com>
> ---
>  arch/arm/mach-imx/speed-imx53.c |   26 ++++++++++++++++++++++++++
>  1 files changed, 26 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/mach-imx/speed-imx53.c b/arch/arm/mach-imx/speed-imx53.c
> index 0d6ac24..a2385fa 100644
> --- a/arch/arm/mach-imx/speed-imx53.c
> +++ b/arch/arm/mach-imx/speed-imx53.c
> @@ -169,6 +169,31 @@ unsigned long imx_get_fecclk(void)
>  	return imx_get_ipgclk();
>  }
>  
> +static unsigned long imx_get_ipg_perclk(void)
> +{
> +	u32 reg;
> +
> +	reg = ccm_readl(MX5_CCM_CBCDR);
> +	if (!(reg & MX5_CCM_CBCDR_PERIPH_CLK_SEL))
> +		return pll2_sw_get_rate();
> +	reg = ccm_readl(MX5_CCM_CBCMR);
> +	switch ((reg & MX5_CCM_CBCMR_PERIPH_CLK_SEL_MASK) >>
> +		MX5_CCM_CBCMR_PERIPH_CLK_SEL_OFFSET) {
> +	case 0:
> +		return pll1_main_get_rate();
> +	case 1:
> +		return pll3_sw_get_rate();
> +	/* case 2:
> +		TODO : LP_APM */
> +	}
> +	return 0;
> +}
> +
> +unsigned long imx_get_i2cclk(void)
> +{
> +	return imx_get_ipg_perclk();
> +}
> +
>  unsigned long imx_get_mmcclk(void)
>  {
>  	u32 reg, prediv, podf, rate;
> @@ -201,4 +226,5 @@ 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("i2c:  %ld\n", imx_get_i2cclk());
>  }
> -- 
> 1.7.7.6
> 
> 
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