The fdt_path_offset() function is slow since it must scan the tree. This substantial overhead now applies to all boards.
The original code may not be ideal but it is fit for purpose and is only needed on a few boards.
Reverting this reduces time to set up driver model by about 30ms.
Before revert:
Accumulated time: 47,170 dm_r 53,237 dm_spl 572,986 dm_f
Accumulated time: 44,598 dm_r 50,347 dm_spl 549,133 dm_f
This reverts commit 26f981f295d00351b6f0c69b5317b254b2361cc0.
Signed-off-by: Simon Glass sjg@chromium.org ---
Changes in v1: - Add detail of impact
configs/am65x_evm_a53_defconfig | 1 + configs/evb-ast2600_defconfig | 1 + configs/sama7g5ek_mmc1_defconfig | 1 + configs/sama7g5ek_mmc_defconfig | 1 + lib/Kconfig | 7 +++++++ lib/fdtdec.c | 7 +++++-- 6 files changed, 16 insertions(+), 2 deletions(-)
Applied to u-boot-dm/next, thanks!