FreeBSD/src dfd1d0f (r355755) — sys/arm64/rockchip rk_pcie.c rk_pcie_phy.c, sys/conf files.arm64
Add driver for Rockchip PCIe root complex found in RK3399 SOC.
Unfortunately, there are some limitations:
- memory aperture of his controller is only 16MiB, so it is nearly
unusable for graphic cards
- every attempt to generate type 1 config cycle always causes trap.
These config cycles are disabled now and we don't support cards
with PCIe switch.
- in some cases, attempt to do config cycle to (probably) not-yet ready
card also causes trap. This cannot be detected at runtime, but it seems
like very rare issue.
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D22724
UnifiedSplitRaw
