[PATCH] mx6: peripheral clock from oscillator

[Fabio Estevam]

Hi Jorge,

On Wed, Oct 14, 2020 at 10:07 AM Jorge Ramirez-Ortiz <jorge at foundries.io> wrote:
>
> In order to be able to run the I2C bus at 400Khz, the chip errata[1]
> recommends that the peripheral clock runs out of the 24MHz oscillator.
>
> [1] Rev 2, 10/2019, ERR007805
>
> Signed-off-by: Jorge Ramirez-Ortiz <jorge at foundries.io>
> ---
>  arch/arm/mach-imx/mx6/soc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-imx/mx6/soc.c b/arch/arm/mach-imx/mx6/soc.c
> index e129286065..1da250bbcd 100644
> --- a/arch/arm/mach-imx/mx6/soc.c
> +++ b/arch/arm/mach-imx/mx6/soc.c
> @@ -469,7 +469,7 @@ int arch_cpu_init(void)
>         }
>
>         /* Set perclk to source from OSC 24MHz */
> -       if (is_mx6sl())
> +       if (is_mx6sl() || is_mx6ull())

According to https://www.nxp.com/docs/en/errata/IMX6SDLCE.pdf the
mx6solo and mx6dl are also affected by ERR007805.

These variants should be handled too.