ddb78711fd
For a fake go, we should tell the event not to actually do anything irreversable, so pass the flag along. Move the enum into a separate event_decl.h header file since otherwise we must include bootm.h which causes a breakage with qemu-ppce500 We also don't want to pull event.h into the tools build, since it uses types like u8 which are not available outside U-Boot Signed-off-by: Simon Glass <sjg@chromium.org>
61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Cleanup before handing off to the OS
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*
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* Copyright 2025 Simon Glass <sjg@chromium.org>
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*/
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#include <bootm.h>
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#include <bootstage.h>
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#include <event.h>
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#include <usb.h>
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#include <dm/root.h>
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__weak void board_quiesce_devices(void)
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{
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}
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void bootm_final(enum bootm_final_t flags)
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{
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struct event_bootm_final final;
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int ret;
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printf("\nStarting kernel ...%s\n\n", flags & BOOTM_FINAL_FAKE ?
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"(fake run for tracing)" : "");
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bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
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if (IS_ENABLED(CONFIG_BOOTSTAGE_FDT) && IS_ENABLED(CONFIG_CMD_FDT))
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bootstage_fdt_add_report();
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if (IS_ENABLED(CONFIG_BOOTSTAGE_REPORT))
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bootstage_report();
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board_quiesce_devices();
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if (IS_ENABLED(CONFIG_USB_DEVICE))
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udc_disconnect();
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/*
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* Call remove function of all devices with a removal flag set.
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* This may be useful for last-stage operations, like cancelling
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* of DMA operation or releasing device internal buffers.
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* dm_remove_devices_active() ensures that vital devices are removed in
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* a second round.
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*/
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dm_remove_devices_active();
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final.flags = flags;
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ret = event_notify(EVT_BOOTM_FINAL, &final, sizeof(final));
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if (ret) {
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printf("Event handler failed to finalise (err %dE\n",
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ret);
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return;
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}
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if (!(flags & BOOTM_FINAL_FAKE)) {
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bootm_disable_interrupts();
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if (!(flags & BOOTM_FINAL_NO_CLEANUP))
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cleanup_before_linux();
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}
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}
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