[U-Boot] [PATCH 3/5] imx: Add support for USB EHCI on imx25

[Stefano Babic <sbabic@denx.de>]

On 06/30/2011 11:57 AM, Matthias Weisser wrote:
> Adding support for USB host on imx25 using the internal PHY
> 
> Signed-off-by: Matthias Weisser <weisserm@arcor.de>
> ---

Hi Matthias,

> +#ifdef CONFIG_MX25
> +#define MX25_USB_CTRL_IP_PUE_DOWN_BIT	(1<<6)
> +#define MX25_USB_CTRL_HSTD_BIT		(1<<5)
> +#define MX25_USB_CTRL_USBTE_BIT		(1<<4)
> +#define MX25_USB_CTRL_OCPOL_OTG_BIT	(1<<3)
> +#endif
> +
> +#ifdef CONFIG_MX31
>  #define MX31_OTG_SIC_SHIFT	29
>  #define MX31_OTG_SIC_MASK	(0x3 << MX31_OTG_SIC_SHIFT)
>  #define MX31_OTG_PM_BIT		(1 << 24)
> @@ -42,10 +50,19 @@
>  #define MX31_H1_SIC_MASK	(0x3 << MX31_H1_SIC_SHIFT)
>  #define MX31_H1_PM_BIT		(1 << 8)
>  #define MX31_H1_DT_BIT		(1 << 4)
> +#endif

Can we try to get rid of nasty #ifdef ? I am sure, we would have in
future support for at least MX5, and if we add a special handling for
each SOC this file will become unreadable.

It seems to me that in most cases we can do it using the same names.

>  
>  	/* Take USB2 */
> +#ifdef CONFIG_MX25
> +	ehci = (struct usb_ehci *)(IMX_USB_BASE +
> +#else
>  	ehci = (struct usb_ehci *)(MX31_OTG_BASE_ADDR +
> +#endif

For example, here we can have a CONFIG_MXB_USB_BASE (or something like
this), without adding #ifdef. I do not know if we can get completely get
rid of them, but it is worth to try.

Best regards,
Stefano Babic

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