Hi Ivan, Thanks for the quick response!
On 2024-09-19 11:52, Ivan T. Ivanov wrote: > Hi Stefan, > >> On 19 Sep 2024, at 12:36, Stefan Agner <[email protected]> wrote: >> >> Hi Ivan, >> >> I am looking into enabling NVMe boot support using U-Boot on Raspberry >> Pi 5. Which brings me to some questions wrt PCIe support (see below). >> >> On 2024-01-10 13:29, Ivan T. Ivanov wrote: >>> > > >>> * I am dropping PCIe patch for now. I made some progress on porting changes >>> from vendor Linux tree to U-Boot. Unfortunatly testing it is little bit >>> tricky. They are many devices behind PCIe, but more or less all of them >>> requires missing either "reset-controller" or "clock-controller" or >>> "pin-controller" drivers. I was able to probe "cdns,macb" device, but >>> access to ethernet PHY over MDIO bus is stucking. Then I ported >>> "raspberrypi,rp1-adc" driver from vendor Linux tree, but it requires >>> missing clock. And on top of that machine that I used for developing this >>> crashed and I lost my PCIe changes :-|. Anyway. >> >> Have you tried using a M.2 HAT? This likely won't require much in terms >> of enabling the device. >> >> You write that you made some progress, is that compared to v3? Do you >> mind sharing the latest version of your patches? > > > No further progress on PCIe for U-Boot from my side was made, sorry. > So v3 the patch you've shared in v3 is your latest state? I was wondering since you wrote in this v4 patch set "I made some progress on porting changes from vendor Linux tree to U-Boot."... > Stan is working on adding support for 2712 PCIe in Linux [1]. Perhaps > once this is complete we can work on adding U-Boot support for the same, > unless someone don’t beat us, of course. Hm, it seems the link did not make it. I guess you meant to link this patch set [1] -- Stefan [1] https://lore.kernel.org/lkml/[email protected]/T/ > > Regards, > Ivan
