[U-Boot] [PATCH 4/9] mx23_olinuxino: Fix DDR pin iomux settings
Marek Vasut
marex at denx.de
Thu May 2 01:28:24 CEST 2013
Dear Fabio Estevam,
> From: Fabio Estevam <fabio.estevam at freescale.com>
>
> Registers HW_PINCTRL_DRIVE9, HW_PINCTRL_DRIVE10, HW_PINCTRL_DRIVE11,
> HW_PINCTRL_DRIVE12, HW_PINCTRL_DRIVE13 and HW_PINCTRL_DRIVE14 control the
> drive strength and the voltage selection for the DDR pins.
>
> The reset values of the voltage selection pins are '1', which is marked as
> 'reserved' in the mx23 reference manual.
>
> Clear these bits for proper operation of DDR.
>
> Also change MUX_CONFIG_EMI, which results in better stability and match the
> bootlets code from Freescale.
>
> Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
Lost of duplicated code here.
Best regards,
Marek Vasut
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