RFC PCI: rockchip-host: support quirky devices
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b4 am [email protected]Versions newest first
- v1 RFC Latest2 patches 8 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | arm64: dts: rockchip: drop PCIe 3v3 always-on/boot-onarch/ | +0 | 0 replies | |
| 2/2 | PCI: rockchip-host: drop wait on PERST# toggledrivers/ | +0 | 8 replies |
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Cover letter [RFC PATCH 0/2] PCI: rockchip-host: support quirky devices
With these two changes I'm able to work with a Samsung PM981a OEM SSD that is known to be not-working with Rockchip-IP PCIe.
Previously I attempted a contrived solution that mostly worked for my simple purposes but was rather inelegant and impractical.
Now I have isolated the behavior to the three lines in the two commits. Omit those three lines and you get a working set with the kernel.
I have no idea how to actually implement this in a way that makes sense and doesn't break the PCIe spec but it is my sincere wish that interested RK3399 parties test the change and report any regressions with already-working devices and specifically, successes or failures of initial link-training with these changes.
Geraldo Nascimento (2):
arm64: dts: rockchip: drop PCIe 3v3 always-on/boot-on
PCI: rockchip-host: drop wait on PERST# toggle
arch/arm64/boot/dts/rockchip/rk3399pro-vmarc-som.dtsi | 2 -- drivers/pci/controller/pcie-rockchip-host.c | 1 - 2 files changed, 3 deletions(-)
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2.49.0