From 555efe47922c8b347ad7cd2c9759740e3e228164 Mon Sep 17 00:00:00 2001 From: Wim Vervoorn Date: Fri, 13 Dec 2019 14:28:15 +0100 Subject: soc/intel/skylake: Change SA_PCIEX_LENGTH to 256MB Skylake soc code sets the length of the PCIe configuration space to 64 MB while the specification allows up to 256 MB. Linux reports "acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bos 00-3f] only partially covers this bridge". Remove "select PCIEX_LENGTH_64MB" from Kconfig so the default 256MB will be used and the size can be reduced on the mainboard level when required. BUG=N/A TEST=tested on facebook monolith Tested is by booting Linux 4.15 and analyzing the coreboot and Linux dmesg to make sure the memory range is reported correctly and doesn't create an overlap. Change-Id: I8a06b9fba5ad561d8595292a73136091ab532faa Signed-off-by: Wim Vervoorn Reviewed-on: https://review.coreboot.org/c/coreboot/+/37704 Reviewed-by: Arthur Heymans Reviewed-by: Patrick Rudolph Tested-by: build bot (Jenkins) --- src/soc/intel/skylake/Kconfig | 1 - 1 file changed, 1 deletion(-) (limited to 'src/soc/intel/skylake/Kconfig') diff --git a/src/soc/intel/skylake/Kconfig b/src/soc/intel/skylake/Kconfig index 31f809a475..5fc2a2d240 100644 --- a/src/soc/intel/skylake/Kconfig +++ b/src/soc/intel/skylake/Kconfig @@ -43,7 +43,6 @@ config CPU_SPECIFIC_OPTIONS select NO_FIXED_XIP_ROM_SIZE select PARALLEL_MP select PARALLEL_MP_AP_WORK - select PCIEX_LENGTH_64MB select PLATFORM_USES_FSP2_0 select REG_SCRIPT select SA_ENABLE_DPR -- cgit v1.2.3