usb: mx6: add fuse check

Add fuse check for USB. If the fuse indicates the module
will not work in the SoC, let's fail the initialization.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index f2ceb5131010d36e1f1632a92b5d390917a63da7..04eb3c006d45425bfc298770b3733aafc38f9d7c 100644 (file)
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -380,6 +380,14 @@ int ehci_hcd_init(int index, enum usb_init_type init,
        if (index > 3)
                return -EINVAL;
 
+       if (CONFIG_IS_ENABLED(IMX_MODULE_FUSE)) {
+               if (usb_fused((ulong)ehci)) {
+                       printf("SoC fuse indicates USB@0x%lx is unavailable.\n",
+                              (ulong)ehci);
+                       return  -ENODEV;
+               }
+       }
+
        ret = ehci_mx6_common_init(ehci, index);
        if (ret)
                return ret;
@@ -577,6 +585,14 @@ static int ehci_usb_probe(struct udevice *dev)
        struct ehci_hcor *hcor;
        int ret;
 
+       if (CONFIG_IS_ENABLED(IMX_MODULE_FUSE)) {
+               if (usb_fused((ulong)ehci)) {
+                       printf("SoC fuse indicates USB@0x%lx is unavailable.\n",
+                              (ulong)ehci);
+                       return -ENODEV;
+               }
+       }
+
        priv->ehci = ehci;
        priv->portnr = dev->seq;
        priv->init_type = type;