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| author | Yidi Lin <yidilin@chromium.org> | 2024-08-27 16:46:34 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2024-09-02 09:16:34 +0000 |
| commit | cea84e2536976581223e83fead847582694fe471 (patch) | |
| tree | d3a8882b757e86441f46c1287861afea462f0f83 /src/security/vboot/tpm_common.c | |
| parent | 5665bcac4f3f2d101537f751fd3d2baa66afaafc (diff) | |
soc/mediatek: Add mtk_pcie_deassert_perst for early PCIe reset
Even we assert PRSET# early to save the delay between PERST# assertion
and de-assertion. MediaTek PCIe driver still takes 47ms waiting for PCIe
link up. (1ms delay for each try)
```
[INFO ] mtk_pcie_domain_enable: PCIe link up success (47 tries)
```
Refactor common/pcie.c and add mtk_pcie_deassert_perst for early PCIe
reset. So we can de-assert PERST# at early stage to improve the boot
time.
BUG=b:361728592
TEST=emerge-cherry coreboot
Change-Id: I008e95263bfaf0119353382c2d2ce5ce29c6a382
Signed-off-by: Yidi Lin <yidilin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84117
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Jianjun Wang <jianjun.wang@mediatek.com>
Diffstat (limited to 'src/security/vboot/tpm_common.c')
0 files changed, 0 insertions, 0 deletions