[ARM] Orion: add the option to support different ehci phy initialization

The Orion ehci driver serves the Orion, kirkwood and DD Soc families.
Since each of those integrate a different USB phy we should have the
ability to use few initialization sequences or to leave the boot loader
phy settings as is.

Signed-off-by: Ronen Shitrit <rshitrit@marvell.com>

1 files changed, 14 insertions, 3 deletions

diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 5416cf96900..9d487908012 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -33,8 +33,9 @@
 /*
  * Implement Orion USB controller specification guidelines
  */
-static void orion_usb_setup(struct usb_hcd *hcd)
+static void orion_usb_phy_v1_setup(struct usb_hcd *hcd)
 {
+        /* The below GLs are according to the Orion Errata document */
         /*
          * Clear interrupt cause and mask
          */
@@ -258,9 +259,19 @@ static int __init ehci_orion_drv_probe(struct platform_device *pdev)
                 ehci_orion_conf_mbus_windows(hcd, pd->dram);
 
         /*
-         * setup Orion USB controller
+         * setup Orion USB controller.
          */
-        orion_usb_setup(hcd);
+        switch (pd->phy_version) {
+        case EHCI_PHY_NA:       /* dont change USB phy settings */
+                break;
+        case EHCI_PHY_ORION:
+                orion_usb_phy_v1_setup(hcd);
+                break;
+        case EHCI_PHY_DD:
+        case EHCI_PHY_KW:
+        default:
+                printk(KERN_WARNING "Orion ehci -USB phy version isn't supported.\n");
+        }
 
         err = usb_add_hcd(hcd, irq, IRQF_SHARED | IRQF_DISABLED);
         if (err)