by the time i'd done this, i'd realised that seabios only
modified some documentation upstream. the code has not
changed since last update, upstream.
no point scrapping the update now. now we have slightly
better documentation for seabios!
Signed-off-by: Leah Rowe <leah@libreboot.org>
I fixed the AHCI bug, with a patch that I wrote. It works by
restoring the old SeaBIOS AHCI initialisation behaviour, whereby
the AHCI controller is enabled from its current state; the patch
that broke AHCI in coreboot (tested on ThinkPad T420), changed
AHCI initialisation behaviour so that the controller's state is
first reset, prior to enablement.
However, my patch also retains the new AHCI initialisation
behaviour, when a CSM is in use. The AHCI reset patch was done,
by the author, specifically for SeaBIOS in CSM mode, so it makes
sense to only change the behaviour conditionally according to that.
This reverts commit 8245f0b321.
Signed-off-by: Leah Rowe <leah@libreboot.org>
This reverts commit a08b8d94fc.
From #libreboot IRC today:
07:02 <irys> ooh this is fun. seabios commit 8863cbbd15a73b03153553c562f5b1fb939ad4d7 (ahci: add controller reset) breaks ahci entirely on t420
07:05 <irys> cbmem console on that seabios commit has a timeout then "AHCI/0: device not ready"
07:07 <irys> AHCI works fine if i change config/seabios/default/target.cfg to use the immediate previous seabios commit (df9dd418b3b0e586cb208125094620fc7f90f23d)
07:07 <irys> works in grub payload either way though
07:31 <irys> here, `cbmem -c` after booting the broken rev: https://0x0.st/84oQ.log
07:31 <irys> compared to the working one https://0x0.st/84o1.log
07:33 <irys> i can't report to upstream myself *right now* but i figure you might want to know about this leah
I have downloaded those logs locally for reference, so that an upstream
report can be made to SeaBIOS. For the purposes of this Libreboot commit,
the diff of the logs is as follows (diff -u broken.log working.log):
Taking each diff line out of the log, the relevant entries
seem to be:
Searching bootorder for: /pci@i0cf8/*@1f,2/drive@0/disk@0
+AHCI/0: Set transfer mode to UDMA-6
+Searching bios-geometry for: /pci@i0cf8/*@1f,2/drive@0/disk@0
+AHCI/0: registering: "AHCI/0: Netac SSD 128GB ATA-11 Hard-Disk (119 GiBytes)"
-WARNING - Timeout at ahci_port_setup:477!
-AHCI/0: device not ready (tf 0x80)
-All threads complete.
-2. Payload [memtest]
+2. AHCI/0: Netac SSD 128GB ATA-11 Hard-Disk (119 GiBytes)
+3. Payload [memtest]
-Space available for UMB: c7000-eb800, f5880-f5ff0
-Returned 16777216 bytes of ZoneHigh
+drive 0x000f5fa0: PCHS=16383/16/63 translation=lba LCHS=1024/255/63 s=250069680
+Space available for UMB: c7000-eb800, f5880-f5fa0
+Returned 16773120 bytes of ZoneHigh
Therefore, the revision will be reverted back for now. It was
only about 8 additional patches imported in the update anyway.
This brings in the following improvements from upstream:
* 9029a010 kconfig: fix the check-lxdialog.sh to work with gcc 14+
* 8863cbbd ahci: add controller reset
* df9dd418 update pci_pad_mem64 handling
* a4fc1845 add romfile_loadbool()
* a2725e28 drop acpi tables and hex includes
* 35aa9a72 drop obsolete acpi table code
* 1b598a1d usb-hid: Support multiple USB HID devices by storing them in a linked list
Signed-off-by: Leah Rowe <leah@libreboot.org>
Leah Rowe