diff options
| author | Kenji Chen <kenji.chen@intel.com> | 2014-09-26 02:48:16 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-04-02 17:27:47 +0200 |
| commit | c373f503dbbfc2a70e91f576fac01f66126556c2 (patch) | |
| tree | 2866ebb7d4d611d2fcbe149153bc849f6c66d508 /src | |
| parent | 8ef55ee9969de3003eae9e3113b7497799ba14ec (diff) | |
Broadwell: Synchronize RO, Link Arbiter, and OBFF with FRC
OBFF: Disable it by clearing bit fields in that W/O register.
RO: Enable Relaxed Ordering from each enabled Root Port.
Linker Arbiter: Set it to recommended setting.
BUG=None
TEST=Build an image and check the setting are applied correctly on
Samus.
Signed-off-by: Kenji Chen <kenji.chen@intel.com>
Change-Id: I7a72217729d6f6ff5320738245c380c887c5912f
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Original-Commit-Id: 465b0a37c381930a4f0d74cd4fd69503a082911b
Original-Change-Id: I284e9eba1c2fceb690d3ef48b45a6f36d07ff84c
Original-Reviewed-on: https://chromium-review.googlesource.com/219993
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Original-Commit-Queue: Kenji Chen <kenji.chen@intel.com>
Original-Tested-by: Kenji Chen <kenji.chen@intel.com>
Reviewed-on: http://review.coreboot.org/9210
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/broadwell/pcie.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/soc/intel/broadwell/pcie.c b/src/soc/intel/broadwell/pcie.c index 22eaab9c5d..b14ad9dea0 100644 --- a/src/soc/intel/broadwell/pcie.c +++ b/src/soc/intel/broadwell/pcie.c @@ -523,8 +523,8 @@ static void pch_pcie_early(struct device *dev) pcie_update_cfg(dev, 0x338, ~(1 << 26), 0); } - /* Enable LTR in Root Port. */ - pcie_update_cfg(dev, 0x64, ~(1 << 11), (1 << 11)); + /* Enable LTR in Root Port. Disable OBFF. */ + pcie_update_cfg(dev, 0x64, ~(1 << 11) & ~(3 << 18), (1 << 11)); pcie_update_cfg(dev, 0x68, ~(1 << 10), (1 << 10)); pcie_update_cfg(dev, 0x318, ~(0xffff << 16), (0x1414 << 16)); @@ -550,6 +550,11 @@ static void pch_pcie_early(struct device *dev) /* Set Extended Capability to offset 200h and Advanced Error Report. */ pcie_update_cfg(dev, 0x100, ~(1 << 29) & ~0xfffff, (1 << 29) | 0x10001); + pcie_update_cfg(dev, 0x320, ~(3 << 20) & ~(7 << 6), + (1 << 20) | (3 << 6)); + /* Enable Relaxed Order from Root Port. */ + pcie_update_cfg(dev, 0x320, ~(3 << 23), (3 << 23)); + if (rp == 1 || rp == 5 || rp == 6) pcie_update_cfg8(dev, 0xf7, ~0xc, 0); |