Hello! I use coreboot+SeaBIOS bundle on custom motherboard with Intel Haswell i7 and Lynxpoint-LP chipset and I've come to a strange issue with USB-to-SATA bridge TUSB9261 (http://www.ti.com/product/TUSB9261). In my experiments I plug HDD to one USB port, and USB boot flash drive to another USB port. Everything works fine when HDD is present on USB-to-SATA bridge. SeaBIOS displays both devices in its boot menu. But if HDD is not present and if USB boot flash drive is plugged to a port greater than USB-to-SATA bridge port, SeaBIOS doesn't see flash drive as bootable device.
In this case I see in log messages similar to this: """ Searching bootorder for: /pci@i0cf8/usb@1d/hub@1/storage@7/*@0/*@0,0 Searching bootorder for: /pci@i0cf8/usb@1d/hub@1/usb-*@7 ehci_send_pipe qh=0x000eab80 dir=0 data=0x00006b79 size=31 ehci_send_pipe qh=0x000eab00 dir=128 data=0x00006c98 size=36 WARNING - Timeout at ehci_wait_td:516! ehci pipe=0x000eab00 cur=000069c0 tok=80240d80 next=1 td=0x000069c0 status=240d80 USB transmission failed Unable to configure USB MSC drive. phys_free f4950 (detail=0x7f6c13c0) Unable to configure USB MSC device. """ Summarizing all the above with SeaBIOS logs: SeaBIOS displays flash drive correctly as bootable device when: - HDD is present on SATA-to-USB port (https://pastebin.com/SuKBkQrq) - HDD is not present on USB port, but SATA-to-USB port number is greater than USB flash drive number (https://pastebin.com/9f6RTBHB) SeaBIOS doesn't display flash drive as bootable device when: - HDD is not present on USB port and SATA-to-USB port number is less than USB flash drive number (https://pastebin.com/abBPhej0) What can be the source of the problem and what can I do to solve this issue? Best Regards, Aladyshev Konstantin _______________________________________________ SeaBIOS mailing list SeaBIOS@seabios.org https://mail.coreboot.org/mailman/listinfo/seabios