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Diffstat (limited to 'README')
| -rw-r--r-- | README | 25 |
1 files changed, 25 insertions, 0 deletions
@@ -2261,6 +2261,31 @@ The following options need to be configured: example, some LED's) on your board. At the moment, the following checkpoints are implemented: +- Detailed boot stage timing + CONFIG_BOOTSTAGE + Define this option to get detailed timing of each stage + of the boot process. + + CONFIG_BOOTSTAGE_USER_COUNT + This is the number of available user bootstage records. + Each time you call bootstage_mark(BOOTSTAGE_ID_ALLOC, ...) + a new ID will be allocated from this stash. If you exceed + the limit, recording will stop. + + CONFIG_BOOTSTAGE_REPORT + Define this to print a report before boot, similar to this: + + Timer summary in microseconds: + Mark Elapsed Stage + 0 0 reset + 3,575,678 3,575,678 board_init_f start + 3,575,695 17 arch_cpu_init A9 + 3,575,777 82 arch_cpu_init done + 3,659,598 83,821 board_init_r start + 3,910,375 250,777 main_loop + 29,916,167 26,005,792 bootm_start + 30,361,327 445,160 start_kernel + Legacy uImage format: Arg Where When |