mirror of
https://github.com/AsahiLinux/u-boot
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3f73e79de8
If we look at the path that bootm/booti take when preparing to boot the OS, we see that as part of (or prior to calling do_bootm_states, explicitly) the process, bootm_disable_interrupts() is called prior to announce_and_cleanup() which is where udc_disconnect() / board_quiesce_devices() / dm_remove_devices_flags() are called from. In the EFI path, these are called afterwards. In efi_exit_boot_services() however we have been calling bootm_disable_interrupts() after the above functions, as part of ensuring that we disable interrupts as required by the spec. However, bootm_disable_interrupts() is also where we go and call usb_stop(). While this has been fine before, on the TI J721E platform this leads us to an exception. This exception seems likely to be the case that we're trying to stop devices that we have already disabled clocks for. The most direct way to handle this particular problem is to make EFI behave like the do_bootm_states() process and ensure we call bootm_disable_interrupts() prior to ending up in usb_stop(). Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org> Cc: Heinrich Schuchardt <xypron.glpk@gmx.de> Cc: Simon Glass <sjg@chromium.org> Suggested-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> |
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| .. | ||
| .gitignore | ||
| efi_acpi.c | ||
| efi_bootmgr.c | ||
| efi_boottime.c | ||
| efi_capsule.c | ||
| efi_console.c | ||
| efi_device_path.c | ||
| efi_device_path_to_text.c | ||
| efi_device_path_utilities.c | ||
| efi_disk.c | ||
| efi_dt_fixup.c | ||
| efi_esrt.c | ||
| efi_file.c | ||
| efi_firmware.c | ||
| efi_freestanding.c | ||
| efi_gop.c | ||
| efi_helper.c | ||
| efi_hii.c | ||
| efi_hii_config.c | ||
| efi_image_loader.c | ||
| efi_load_initrd.c | ||
| efi_load_options.c | ||
| efi_memory.c | ||
| efi_net.c | ||
| efi_rng.c | ||
| efi_root_node.c | ||
| efi_runtime.c | ||
| efi_setup.c | ||
| efi_signature.c | ||
| efi_smbios.c | ||
| efi_string.c | ||
| efi_tcg2.c | ||
| efi_unicode_collation.c | ||
| efi_var_common.c | ||
| efi_var_file.c | ||
| efi_var_mem.c | ||
| efi_var_seed.S | ||
| efi_variable.c | ||
| efi_variable_tee.c | ||
| efi_watchdog.c | ||
| helloworld.c | ||
| Kconfig | ||
| Makefile | ||