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- From 70731c46da05311edb639ce1349bb6dd3279031e Mon Sep 17 00:00:00 2001
- From: Sven Anderson <sven@anderson.de>
- Date: Mon, 13 Jan 2025 19:55:15 +0100
- Subject: [PATCH 23/26] xhci: workaround z790 non-root-hub speed detection
- ---
- grub-core/bus/usb/xhci.c | 5 +++++
- 1 file changed, 5 insertions(+)
- diff --git a/grub-core/bus/usb/xhci.c b/grub-core/bus/usb/xhci.c
- index dc89b9619..d13a7c39d 100644
- --- a/grub-core/bus/usb/xhci.c
- +++ b/grub-core/bus/usb/xhci.c
- @@ -2285,6 +2285,11 @@ grub_xhci_detect_dev (grub_usb_controller_t dev, int port, int *changed)
- if (!(portsc & GRUB_XHCI_PORTSC_CCS))
- return GRUB_USB_SPEED_NONE;
-
- + if (port == 4 || port == 12 && speed < XHCI_USB_HIGHSPEED) { // inital hub speed detection on Z790 is too low
- + grub_dprintf("xhci", "%s: setting internal hub speed to high\n", __func__);
- + return GRUB_USB_SPEED_HIGH;
- + }
- +
- for (grub_uint8_t i = 0; i < 16 && x->psids[port].psids[i].id > 0; i++)
- {
- if (x->psids[port].psids[i].id == speed)
- --
- 2.39.5
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