Hi Tony, On Tue, 31 Oct 2023 at 13:45, Tony Dinh <mibo...@gmail.com> wrote: > > On Tue, Oct 31, 2023 at 12:26 PM Tony Dinh <mibo...@gmail.com> wrote: > > > > Hi Simon, > > > > On Mon, Oct 30, 2023 at 12:47 PM Tony Dinh <mibo...@gmail.com> wrote: > > > > > > During scanning for the next bootdev, if bootdev_next_prio() encounters > > > a device error (e.g. ENOSYS), let it continue scanning the next devices, > > > not stopping prematurely. > > > > > > Background: > > > > > > During scanning for bootflows, it's possible for bootstd to encounter a > > > faulty device controller. Also when the same u-boot is used for another > > > variant of the same board, some device controller such as SATA might > > > not exist. > > > > > > I've found this issue while converting the Marvell Sheevaplug board to > > > use bootstd. This board has 2 variants, the original Sheevaplug has MMC > > > and > > > USB only, but the later variant comes with USB, MMC, and eSATA ports. We > > > have been using the same u-boot (starting with CONFIG_IDE and later with > > > DM > > > CONFIG_SATA) for both variants. This worked well with the old > > > envs-scripting booting scheme. > > > > > > Signed-off-by: Tony Dinh <mibo...@gmail.com> > > > --- > > > > > > boot/bootdev-uclass.c | 2 -- > > > 1 file changed, 2 deletions(-) > > > > > > diff --git a/boot/bootdev-uclass.c b/boot/bootdev-uclass.c > > > index 44ae98a926..b1d48e5b69 100644 > > > --- a/boot/bootdev-uclass.c > > > +++ b/boot/bootdev-uclass.c > > > @@ -677,8 +677,6 @@ int bootdev_next_prio(struct bootflow_iter *iter, > > > struct udevice **devp) > > > BOOTFLOWIF_SHOW); > > > log_debug("- bootdev_hunt_prio() ret > > > %d\n", > > > ret); > > > - if (ret) > > > - return log_msg_ret("hun", ret); > > > } > > > } else { > > > ret = device_probe(dev); > > > -- > > > 2.39.2 > > > > > > > Per your request, here is the console trace log when the device error > > occurs. Perhaps we could improve bootdev_next_prio() to make the error > > status more visible in the console with printf? I've briefly looked at > > other device bootdev hunt drivers and did not see enough console > > output for this type of error, so it might be better that we have this > > output either in bootdev_next_prio() or bootdev_hunt_drv(). > > > > <BEGIN LOG> > > U-Boot 2024.01-rc1-tld-1-00003-gd697d7b93a-dirty (Oct 26 2023 - 16:17:16 > > -0700) > > Marvell-Sheevaplug > > > > SoC: Kirkwood 88F6281_A0 > > DRAM: 512 MiB > > Core: 17 devices, 12 uclasses, devicetree: separate > > NAND: 512 MiB > > MMC: 338-uclass_find_device_by_seq() 0 > > 346-uclass_find_device_by_seq() - 0 'mvsdio@90000' > > 349-uclass_find_device_by_seq() - found > > 252- mvebu_mmc_power_up() mvebu_mmc mvsdio@90000: power up > > 399-mvebu_mmc_initialize() mvebu_mmc mvsdio@90000: mvebu_mmc_initialize > > 338-uclass_find_device_by_seq() 1 > > 346-uclass_find_device_by_seq() - 0 'mvsdio@90000' > > 353-uclass_find_device_by_seq() - not found > > mvsdio@90000: 0 > > Loading Environment from NAND... 338-uclass_find_device_by_seq() 0 > > 346-uclass_find_device_by_seq() - 0 'ethernet-controller@72000' > > 349-uclass_find_device_by_seq() - found > > OK > > In: serial > > Out: serial > > Err: serial > > Net: eth0: ethernet-controller@72000 > > Hit any key to stop autoboot: 0 > > > > => env def -a > > ## Resetting to default environment > > > > => bootflow scan -l > > Scanning for bootflows in all bootdevs > > Seq Method State Uclass Part Name Filename > > --- ----------- ------ -------- ---- ------------------------ > > ---------------- > > 338-uclass_find_device_by_seq() 0 > > 346-uclass_find_device_by_seq() - 0 'extlinux' > > 349-uclass_find_device_by_seq() - found > > 338-uclass_find_device_by_seq() 1 > > 346-uclass_find_device_by_seq() - 0 'extlinux' > > 346-uclass_find_device_by_seq() - 1 'script' > > 349-uclass_find_device_by_seq() - found > > 338-uclass_find_device_by_seq() 2 > > 346-uclass_find_device_by_seq() - 0 'extlinux' > > 346-uclass_find_device_by_seq() - 1 'script' > > 346-uclass_find_device_by_seq() - 2 'pxe' > > 349-uclass_find_device_by_seq() - found > > 871- bootdev_hunt_prio() Hunting for priority 1 > > 883- bootdev_hunt_prio() exit 0 > > 715- bootdev_setup_iter() - bootdev_hunt_prio() ret 0 > > 83-bootstd_get_bootdev_order() - targets <NULL> 00000000 > > 746- bootdev_setup_iter() setup labels 00000000 > > 641- bootdev_next_prio() next prio 0: dev=00000000/none > > 659- bootdev_next_prio() - ethernet-control...@72000.boo: 6, want 0 > > 659- bootdev_next_prio() - mvsdio@90000.bootdev: 2, want 0 > > 668- bootdev_next_prio() None found at prio 0, moving to 1 > > 871- bootdev_hunt_prio() Hunting for priority 1 > > 883- bootdev_hunt_prio() exit 0 > > 678- bootdev_next_prio() - bootdev_hunt_prio() ret 0 > > 659- bootdev_next_prio() - ethernet-control...@72000.boo: 6, want 1 > > 659- bootdev_next_prio() - mvsdio@90000.bootdev: 2, want 1 > > 668- bootdev_next_prio() None found at prio 1, moving to 2 > > 871- bootdev_hunt_prio() Hunting for priority 2 > > Hunting with: mmc > > 783- bootdev_hunt_drv() Hunting with: mmc > > 879- bootdev_hunt_prio() bootdev_hunt_drv() return 0 > > 883- bootdev_hunt_prio() exit 0 > > 678- bootdev_next_prio() - bootdev_hunt_prio() ret 0 > > 659- bootdev_next_prio() - ethernet-control...@72000.boo: 6, want 2 > > 659- bootdev_next_prio() - mvsdio@90000.bootdev: 2, want 2 > > 756- bootdev_setup_iter() Selected bootdev: mvsdio@90000.bootdev > > 134-bootflow_iter_set_dev() iter: Setting dev to mvsdio@90000.bootdev, > > flags 0 > > Scanning bootdev 'mvsdio@90000.bootdev': > > 573-bootdev_get_bootflow() ->get_bootflow mvsdio@90000.bootdev,0=00000000 > > 337- mvebu_mmc_set_ios() mvebu_mmc mvsdio@90000: bus[0] clock[0] > > 321- mvebu_mmc_set_bus() mvebu_mmc mvsdio@90000: ctrl 0xf809: > > push-pull 1bit-width > > 279- mvebu_mmc_set_clk() mvebu_mmc mvsdio@90000: clock off > > 337- mvebu_mmc_set_ios() mvebu_mmc mvsdio@90000: bus[1] clock[0] > > 321- mvebu_mmc_set_bus() mvebu_mmc mvsdio@90000: ctrl 0xf809: > > push-pull 1bit-width > > 279- mvebu_mmc_set_clk() mvebu_mmc mvsdio@90000: clock off > > 337- mvebu_mmc_set_ios() mvebu_mmc mvsdio@90000: bus[1] clock[97703] > > 321- mvebu_mmc_set_bus() mvebu_mmc mvsdio@90000: ctrl 0xf809: > > push-pull 1bit-width > > 287- mvebu_mmc_set_clk() mvebu_mmc mvsdio@90000: clock (97703) div : 1022 > > 85- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: cmdidx [0x0] > > resp_type[0x0] cmdarg[0x0] > > 88- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: cmd 0 (hw state 0x20f8) > > 233- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: resp[0x0] mvebu_mmc > > mvsdio@90000: cmdidx [0x8] resp_type[0x15] cmdarg[0x1aa] > > 88- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: cmd 8 (hw state 0x20f8) > > 233- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: resp[0x15] > > mvebu_mmc mvsdio@90000: cmdidx [0x37] resp_type[0x15] cmdarg[0x0] > > 88- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: cmd 55 (hw state 0x20f8) > > 233- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: resp[0x15] > > mvebu_mmc mvsdio@90000: cmdidx [0x0] resp_type[0x0] cmdarg[0x0] > > 88- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: cmd 0 (hw state 0x20f8) > > 233- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: resp[0x0] mvebu_mmc > > mvsdio@90000: cmdidx [0x1] resp_type[0x1] cmdarg[0x0] > > 88- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: cmd 1 (hw state 0x20f8) > > 233- mvebu_mmc_send_cmd() mvebu_mmc mvsdio@90000: resp[0x1] Card did > > not respond to voltage select! : -110 > > 333-bootdev_get_sibling_blk() act: returning err=-95 > > 550-default_get_bootflow() sibling_blk ret=-95, blk=(none) > > 559-default_get_bootflow() blk: returning err=-108 > > 375- bootflow_check() check: returning err=-108 > > 414- bootflow_scan_first() check - ret=-108 > > 191- iter_incr() entry: err=-108 > > 248- iter_incr() inc_dev=1 > > 281- iter_incr() labels 00000000 > > 641- bootdev_next_prio() next prio 2: dev=1fb4e800/mvsdio@90000.bootdev > > 668- bootdev_next_prio() None found at prio 2, moving to 3 > > 871- bootdev_hunt_prio() Hunting for priority 3 > > 883- bootdev_hunt_prio() exit 0 > > 678- bootdev_next_prio() - bootdev_hunt_prio() ret 0 > > 659- bootdev_next_prio() - ethernet-control...@72000.boo: 6, want 3 > > 659- bootdev_next_prio() - mvsdio@90000.bootdev: 2, want 3 > > 668- bootdev_next_prio() None found at prio 3, moving to 4 > > 871- bootdev_hunt_prio() Hunting for priority 4 > > > > Hunting with: ahci > > 783- bootdev_hunt_drv() Hunting with: ahci > > Removing devices on SATA bus... > > Cannot find SATA device (err=0) > > 786- bootdev_hunt_drv() - hunt result -38 > > 879- bootdev_hunt_prio() bootdev_hunt_drv() return -38 > > 883- bootdev_hunt_prio() exit -38 > > 678- bootdev_next_prio() - bootdev_hunt_prio() ret -38 > > 681- bootdev_next_prio() hun: returning err=-38 > > 308- iter_incr() ret=-38, dev=00000000 none > > 134-bootflow_iter_set_dev() iter: Setting dev to (none), flags 0 > > No more bootdevs > > 326- iter_incr() incr: returning err=-19 > > 434- bootflow_scan_next() iter_incr: ret=-19 > > 436- bootflow_scan_next() done: returning err=-19 > > 422- bootflow_scan_first() get: returning err=-19 > > --- ----------- ------ -------- ---- ------------------------ > > ---------------- > > (0 bootflows, 0 valid) > > > > <END LOG> > > A bit more information: drivers/ata/sata.c outputs these lines: > > Removing devices on SATA bus... > Cannot find SATA device (err=0)
Thanks for the trace! I believe the problem is that sata_rescan() returns -ENOSYS. That error means that there is a device but it does not implement the uclass method requested. In this case -ENOENT would be a better error, since there is nothing there. Then in bootdev_hunt_drv(), check for -ENOENT from the info->hunt() call and ignore it. You should also update bootdev_hunter_func() docs to indicate what -ENOENT means. Regards, Simon