[U-Boot] [PATCH] usb: imx: Allow multiple USB ports to be used at the same time on mx5

[Simon Glass]

Hi,

On 21 May 2015 at 15:02, Matthew Starr <mstarr at hedonline.com> wrote:
>
> CONFIG_MXC_USB_PORT was used to define which USB port was to be
> initialized.  If CONFIG_USB_MAX_CONTROLLER_COUNT > 1, then the
> port specified by CONFIG_MXC_USB_PORT would be duplicated
> CONFIG_USB_MAX_CONTROLLER_COUNT times including duplicating all
> devices connected to the ports.  None of the other USB ports would
> be available for use.
>
> The fix is to remove all instances of CONFIG_MXC_USB_PORT from the
> imx53 ehci driver since it was only allowing the port specified by
> CONFIG_MXC_USB_PORT to be populated.  Then use
> CONFIG_USB_MAX_CONTROLLER_COUNT to specifiy which USB ports should be
> enabled, starting with port 0.  If port 1 is needed, then set
> CONFIG_USB_MAX_CONTROLLER_COUNT to 2 so 2 ports get populated (port 0
> and port 1) even though port 0 will not be used.
>
> Configurations for all boards affected are updated.
>
> Signed-off-by: Matthew Starr <mstarr at hedonline.com>
>
> ---
>
>  drivers/usb/host/ehci-mx5.c    | 8 ++++----
>  include/configs/m53evk.h       | 2 +-
>  include/configs/mx51_efikamx.h | 1 +
>  include/configs/mx51evk.h      | 2 +-
>  include/configs/mx53loco.h     | 2 +-
>  include/configs/usbarmory.h    | 2 +-
>  6 files changed, 9 insertions(+), 8 deletions(-)

Perhaps instead this should move to driver model - it supports EHCI.
See tegra, exynos, sunxi and sandbox.

Regards,
Simon