From 4e48ac04da0cb4dd71edd039b55e04942b80ab75 Mon Sep 17 00:00:00 2001 From: Andrey Petrov Date: Thu, 30 Apr 2020 14:08:19 -0700 Subject: soc/intel/xeon_sp/cpx: Implement hide/unhide P2SB traditional dance Perform the P2SB hide/unhide trick. This is needed so that BAR0 (0xfd000000) is not reclaimed by resource allocator, since it can not deal with a device that does not exist (hidden). Signed-off-by: Andrey Petrov Change-Id: I5db0ae4e31d72ba86efba5728b2afc68d3180d5d Reviewed-on: https://review.coreboot.org/c/coreboot/+/40921 Tested-by: build bot (Jenkins) Reviewed-by: Angel Pons Reviewed-by: Maxim Polyakov --- src/soc/intel/xeon_sp/cpx/chip.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'src/soc/intel') diff --git a/src/soc/intel/xeon_sp/cpx/chip.c b/src/soc/intel/xeon_sp/cpx/chip.c index 196f3df0d1..0a4cea6207 100644 --- a/src/soc/intel/xeon_sp/cpx/chip.c +++ b/src/soc/intel/xeon_sp/cpx/chip.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include #include @@ -73,7 +74,7 @@ struct pci_operations soc_pci_ops = { static void chip_final(void *data) { - /* nothing implemented yet */ + p2sb_hide(); } static void chip_init(void *data) @@ -82,6 +83,7 @@ static void chip_init(void *data) fsp_silicon_init(false); pch_enable_ioapic(NULL); setup_lapic(); + p2sb_unhide(); } struct chip_operations soc_intel_xeon_sp_cpx_ops = { -- cgit v1.2.3