diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0549-usb-xhci-Disable-the-XHCI-5-second-timeout.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0549-usb-xhci-Disable-the-XHCI-5-second-timeout.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0549-usb-xhci-Disable-the-XHCI-5-second-timeout.patch b/target/linux/brcm2708/patches-4.19/950-0549-usb-xhci-Disable-the-XHCI-5-second-timeout.patch new file mode 100644 index 0000000000..3f62d3adb5 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0549-usb-xhci-Disable-the-XHCI-5-second-timeout.patch @@ -0,0 +1,29 @@ +From 4f8e73f79d01049ab47e4984f8df63cd92a4da5c Mon Sep 17 00:00:00 2001 +From: Tim Gover <tim.gover@raspberrypi.org> +Date: Fri, 22 Mar 2019 09:47:14 +0000 +Subject: [PATCH 549/725] usb: xhci: Disable the XHCI 5 second timeout + +If the VL805 EEPROM has not been programmed then boot will hang for five +seconds. The timeout seems to be arbitrary and is an unecessary +delay on the first boot. Remove the timeout. + +This is common code and probably can't be upstreamed unless the timeout +can be configurable somehow or perhaps the XHCI driver can be skipped +on the first boot. +--- + drivers/usb/host/xhci.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +--- a/drivers/usb/host/xhci.c ++++ b/drivers/usb/host/xhci.c +@@ -196,8 +196,9 @@ int xhci_reset(struct xhci_hcd *xhci) + if (xhci->quirks & XHCI_INTEL_HOST) + udelay(1000); + ++ // Hack: reduce handshake timeout from 10s 0.5s due to unprogrammed vl805 + ret = xhci_handshake(&xhci->op_regs->command, +- CMD_RESET, 0, 10 * 1000 * 1000); ++ CMD_RESET, 0, 500 * 1000); + if (ret) + return ret; + |