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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.patch29
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;
+