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....@nxp.com>
---
V2:
Update commit and debug info
drivers/usb/host/ehci-mx6.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c
index e9e6ed596d..60b4d1ceb3 100644
--- a/drivers/usb/host/ehci-mx6.c
+++ b/drivers/usb/host/ehci-mx6.c
@@ -353,6 +353,14 @@ int ehci_hcd_init(int index, enum usb_init_type init,
if (index > 3)
return -EINVAL;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
+ if (usb_fused((u32)ehci)) {
+ printf("SoC fuse indicates USB@0x%x is unavailable.\n",
+ (u32)ehci);
+ return -ENODEV;
+ }
+ }
+
ret = ehci_mx6_common_init(ehci, index);
if (ret)
return ret;
@@ -549,6 +557,14 @@ static int ehci_usb_probe(struct udevice *dev)
struct ehci_hcor *hcor;
int ret;
+ if (IS_ENABLED(CONFIG_IMX_MODULE_FUSE)) {
+ if (usb_fused((u32)ehci)) {
+ printf("SoC fuse indicates USB@0x%x is unavailable.\n",
+ (u32)ehci);
+ return -ENODEV;
+ }
+ }
+
priv->ehci = ehci;
priv->portnr = dev->seq;
priv->init_type = type;
--
2.16.4
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