From 0bd3d911df12816ab8e32d9245449aeca484b539 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Fri, 1 May 2020 22:08:36 +0800 Subject: [PATCH] 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 --- 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 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; -- 2.25.1