brcm2708: organize kernel patches

[openwrt/staging/chunkeey.git] / target / linux / brcm2708 / patches-4.19 / 950-0499-usb-xhci-Disable-the-XHCI-5-second-timeout.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0499-usb-xhci-Disable-the-XHCI-5-second-timeout.patch b/target/linux/brcm2708/patches-4.19/950-0499-usb-xhci-Disable-the-XHCI-5-second-timeout.patch
new file mode 100644 (file)
index 0000000..abc576d
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0499-usb-xhci-Disable-the-XHCI-5-second-timeout.patch
@@ -0,0 +1,29 @@
+From ff7222c0771a5e28666335663571058e560ad32b 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] 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;
+