[U-Boot] [PATCH v4 5/8] mxc_i2c: add support for MX53 processor
Marek Vasut
marek.vasut at gmail.com
Wed Jul 13 11:57:05 CEST 2011
On Tuesday, January 04, 2011 09:27:39 AM Jason Liu wrote:
> This patch add I2C support for Freescale MX53 processor
>
> Signed-off-by: Jason Liu <r64343 at freescale.com>
>
-- SNIP --
>
> +#if defined(CONFIG_MX31)
> + freq = mx31_get_ipg_clk();
> /* start the required I2C clock */
> __REG(CCM_CGR0) = __REG(CCM_CGR0) | (3 << I2C_CLK_OFFSET);
> +#else
> + freq = mxc_get_clock(MXC_IPG_PERCLK);
Jason, this here is incorrect, I CCed you with my "rework of i2c_mxc" patch
where this is fixed, as well as the driver is more stable (at least for me on
imx51). The correct source here should be MXC_IPG_CLK.
Cheers
> +#endif
>
> for (i = 0; i < 0x1f; i++)
> if (freq / div[i] <= speed)
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