d88eeae616
Reserve Root Port LTR mechanism in FSP, in case some devices need to optimize LTR. BUG=366383364 TEST=Tested on Awasuki with RTL8852BE use lspci -xxx to get PCIE config space dump, and LTR Mechanism Enable bit is offset 68h[10]. 00:1c.0 PCI bridge: Intel Corporation Device 4dbf (rev 01) 00: 86 80 bf 4d 07 05 10 00 01 00 04 06 10 00 81 00 10: 00 00 00 00 00 00 00 00 00 01 01 00 20 20 00 20 20: c0 7f c0 7f f1 ff 01 00 00 00 00 00 00 00 00 00 30: 00 00 00 00 40 00 00 00 00 00 00 00 0b 04 12 00 40: 10 80 42 01 00 80 00 00 00 00 10 00 13 4c 72 08 50: 43 00 11 70 00 b2 3c 00 00 00 40 01 08 00 00 00 60: 00 00 00 00 37 08 00 00 00 04 00 00 0e 00 00 00 70: 03 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00 80: 05 90 01 00 38 02 e0 fe 00 00 00 00 00 00 00 00 90: 0d a0 00 00 86 80 bf 4d 00 00 00 00 00 00 00 00 a0: 01 00 03 c8 00 00 00 00 00 00 00 00 00 00 00 00 b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 d0: 01 10 00 07 42 18 01 40 08 00 9e 09 00 00 00 00 e0: 00 03 e3 00 00 00 00 00 16 00 10 00 00 00 00 00 f0: 50 01 00 00 00 00 00 4c b5 0f 02 01 04 00 00 84 Change-Id: I85e50b01cc9fb5522d457cfce3700b7c85d7012f Signed-off-by: Lawrence Chang <lawrence.chang@intel.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/84866 Reviewed-by: Karthik Ramasubramanian <kramasub@google.com> Reviewed-by: Subrata Banik <subratabanik@google.com> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: David Ruth <druth@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> |
||
|---|---|---|
| .. | ||
| amd | ||
| cavium | ||
| example/min86 | ||
| ibm/power9 | ||
| intel | ||
| mediatek | ||
| nvidia | ||
| qualcomm | ||
| rockchip | ||
| samsung | ||
| sifive | ||
| ti | ||
| ucb/riscv | ||