diff options
| author | Kane Chen <kane.chen@intel.com> | 2014-09-09 15:53:09 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-02 17:27:26 +0200 |
| commit | 642e598102a48a5ffd76aae0d21795881a56c6d8 (patch) | |
| tree | 4846438cac7ccc3673d4310983d775867fc65778 /src/soc/intel/broadwell/pcie.c | |
| parent | 86b0c8b48038f537407c1b8ed9015a54d0159403 (diff) | |
broadwell: Update PCIe configuration to follow BWG
According to BIOS spec 8.14
B0:D28:F0[5:4] should be set to 11
BRANCH=none
BUG=chrome-os-partner:28234
TEST=build ok, boot to Auron and Samus
make sure register is set and PCIE is working
Change-Id: I4a7e990993c230dfc1ba83ea75f56757c2c18e46
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 82826e3c44c26252697677ec08b95a8f174bc360
Original-Change-Id: I7c37245053ceae460dac0f18363f585244db72f8
Original-Signed-off-by: Kane Chen <kane.chen@intel.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/217414
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/9197
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc/intel/broadwell/pcie.c')
| -rw-r--r-- | src/soc/intel/broadwell/pcie.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/pcie.c b/src/soc/intel/broadwell/pcie.c index bd1c55a372..f63f6d527c 100644 --- a/src/soc/intel/broadwell/pcie.c +++ b/src/soc/intel/broadwell/pcie.c @@ -113,6 +113,7 @@ static void root_port_init_config(device_t dev) rpc.pin_ownership = pci_read_config32(dev, 0x410); root_port_config_update_gbe_port(); + pcie_update_cfg8(dev, 0xe2, ~(3 << 4), (3 << 4)); if (dev->chip_info != NULL) { config_t *config = dev->chip_info; rpc.coalesce = config->pcie_port_coalesce; |