From 1121a7b9cc0566a76084d63e9c9ea8352711e31c Mon Sep 17 00:00:00 2001 From: Yidi Lin Date: Thu, 19 Sep 2024 10:06:34 +0800 Subject: mb/google/rauru: Complete PCIe reset in romstage De-assert PERST# at romstage to reduce the waiting time in ramstage. BUG=b:361728592 TEST=The boot time improves 62ms Change-Id: I2cd5cd59e7513b6e4036c3e8013a3c7322d2f787 Signed-off-by: Yidi Lin Reviewed-on: https://review.coreboot.org/c/coreboot/+/84895 Tested-by: build bot (Jenkins) Reviewed-by: Yu-Ping Wu Reviewed-by: Yidi Lin --- src/mainboard/google/rauru/romstage.c | 4 ++++ src/soc/mediatek/mt8196/Makefile.mk | 1 + 2 files changed, 5 insertions(+) diff --git a/src/mainboard/google/rauru/romstage.c b/src/mainboard/google/rauru/romstage.c index 0db6fd2674..7ee8759f75 100644 --- a/src/mainboard/google/rauru/romstage.c +++ b/src/mainboard/google/rauru/romstage.c @@ -1,8 +1,12 @@ /* SPDX-License-Identifier: GPL-2.0-only */ #include +#include void platform_romstage_main(void) { /* TODO: add romstage main function */ + + if (CONFIG(PCI)) + mtk_pcie_deassert_perst(); } diff --git a/src/soc/mediatek/mt8196/Makefile.mk b/src/soc/mediatek/mt8196/Makefile.mk index df72ba65b9..809f3dc94a 100644 --- a/src/soc/mediatek/mt8196/Makefile.mk +++ b/src/soc/mediatek/mt8196/Makefile.mk @@ -16,6 +16,7 @@ bootblock-$(CONFIG_PCI) += ../common/pcie.c pcie.c bootblock-y += ../common/wdt.c ../common/wdt_req.c wdt.c romstage-y += ../common/cbmem.c +romstage-$(CONFIG_PCI) += ../common/early_init.c ../common/pcie.c romstage-y += emi.c romstage-y += l2c_ops.c romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c -- cgit v1.2.3