From: Peng Fan <peng.fan@nxp.com>
Date: Fri, 1 May 2020 14:08:36 +0000 (+0800)
Subject: usb: mx6: add fuse check
X-Git-Tag: v2020.10~225^2~64
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0bd3d911df12816ab8e32d9245449aeca484b539;p=platform%2Fkernel%2Fu-boot.git

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 f2ceb51310..04eb3c006d 100644
--- 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;