sonic-net
Fix some emmc unreliability seen on older AMD CPUs
Some patches are required to fix some emmc unreliability seen on AMD platforms. These were ported over from the EOS kernel and applied properly.
@Staphylo can you rebase this onto the current master branch so that we can get this merged onto the master branch, and cherry-picked for 202211?
I just rebased my changes on top of master.
As a side note, if my change to drivers/mmc/host/sdhci-pci-core.c is seen as too dangerous, I could leverage the append_quirk* change to encode all the necessary quirks via the cmdline for the affected product only.
sdhci.append_quirk=0x20 sdhci.append_quirk2=0x240
It would amount to enabling:
-
SDHCI_QUIRK_BROKEN_ADMA -
SDHCI_QUIRK2_BROKEN_64_BIT_DMA -
SDHCI_QUIRK2_BROKEN_HS200
Are there plans to upstream, at minimum, patch/driver-arista-mmcblk-not-working-on-AMD-platforms.patch?
Are there plans to upstream, at minimum,
patch/driver-arista-mmcblk-not-working-on-AMD-platforms.patch?
There is currently no plan to upstream this.
As mentioned in my previous comment, if that's a problem for you I could do everything via kernel parameters and drop driver-arista-mmcblk-not-working-on-AMD-platforms.patch
@saiarcot895 @xumia could we enable default PR format for this repo? Like PR need to include below info.
Why I did it How I did it How to verify it
@yxieca this fix is already on 202205. The only diff is in the patch description since I added a few lines here. I don't think there's anything to do for 202205.