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usb: mx6: add fuse check

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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>
This commit is contained in:
Peng Fan 2020-05-01 22:08:36 +08:00 committed by Stefano Babic
parent 7d1ee741d1
commit 0bd3d911df
1 changed files with 16 additions and 0 deletions
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16
drivers/usb/host/ehci-mx6.c
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@ -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;