From 64d3c7b5150c8556361cede3d12b4fd6a6ff546e Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Tue, 14 Jan 2025 20:24:00 +0000 Subject: grub/xhci: Add xHCI non-root-hub fixes from Nitrokey See: https://github.com/Nitrokey/nethsm-grub/commits/nethsm-z790?since=2025-01-13&until=2025-01-13 And more generally, see branch: https://github.com/Nitrokey/nethsm-grub/commits/nethsm-z790 This brings in a few minor fixes, and also a not-so-minor fix: Add TT (transaction translation) handling for non-SuperSpeed devices in xhci.c More generally, this patchset will improve non-root hub support in the xHCI code. There is also a patch to work around a quirk on the MSI Z790-P mainboard, which I'm planning to add to Libreboot at a later date. Signed-off-by: Leah Rowe --- ...karound-z790-non-root-hub-speed-detection.patch | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 config/grub/xhci/patches/0023-xhci-workaround-z790-non-root-hub-speed-detection.patch (limited to 'config/grub/xhci/patches/0023-xhci-workaround-z790-non-root-hub-speed-detection.patch') diff --git a/config/grub/xhci/patches/0023-xhci-workaround-z790-non-root-hub-speed-detection.patch b/config/grub/xhci/patches/0023-xhci-workaround-z790-non-root-hub-speed-detection.patch new file mode 100644 index 00000000..0181f3bd --- /dev/null +++ b/config/grub/xhci/patches/0023-xhci-workaround-z790-non-root-hub-speed-detection.patch @@ -0,0 +1,28 @@ +From b033ef3b4b2384df4165ae7829155cafd4ee3488 Mon Sep 17 00:00:00 2001 +From: Sven Anderson +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 + -- cgit v1.2.1