On 09/05/11 19:46, Jan Andersson wrote:
> This patch adds support for big endian GRUSBHC UHCI controllers.
> The HCD bus glue will probe the register interface to determine
> the endianness of the controller.
>
> Tested on GR-LEON4-ITX board which has a controller with little endian
> interface and on custom LEON3 board with a BE controller.
>
> Signed-off-by: Jan Andersson <jan@xxxxxxxxxxx>
> ---
> Changes for patch V2:
> Updated added comment in uhci-grlib.c
> Assign uhci->big_endian_mmio instead of function pointers
> ---
> drivers/usb/host/Kconfig | 6 ++++--
> drivers/usb/host/uhci-grlib.c | 17 +++++++++++++++++
> drivers/usb/host/uhci-hcd.h | 11 ++++++++++-
> 3 files changed, 31 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
> index 5844248..ab085f1 100644
> --- a/drivers/usb/host/Kconfig
> +++ b/drivers/usb/host/Kconfig
> @@ -418,11 +418,13 @@ config USB_UHCI_SUPPORT_NON_PCI_HC
>
> config USB_UHCI_BIG_ENDIAN_MMIO
> bool
> - depends on USB_UHCI_SUPPORT_NON_PCI_HC
> + depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
> + default y
>
> config USB_UHCI_BIG_ENDIAN_DESC
> bool
> - depends on USB_UHCI_SUPPORT_NON_PCI_HC
> + depends on USB_UHCI_SUPPORT_NON_PCI_HC && SPARC_LEON
> + default y
>
> config USB_FHCI_HCD
> tristate "Freescale QE USB Host Controller support"
> diff --git a/drivers/usb/host/uhci-grlib.c b/drivers/usb/host/uhci-grlib.c
> index b1addd6..81f741a 100644
> --- a/drivers/usb/host/uhci-grlib.c
> +++ b/drivers/usb/host/uhci-grlib.c
> @@ -25,6 +25,23 @@ static int uhci_grlib_init(struct usb_hcd *hcd)
> {
> struct uhci_hcd *uhci = hcd_to_uhci(hcd);
>
> + /* Assign function pointers that will be used for register accesses.
> + * Probe to see if we have a big or little endian controller. Bit 7
Crap, I forgot to update the first part of that comment. And I suppose I
should have added "From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>" to
patch 2. I will wait a while for any comments and then resend this
series with those two things fixed.
Best regards,
Jan
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