"On Fri, Mar 4, 2022 at 2:52 PM Yann Gautier <yann.gautier@xxxxxxxxxxx> wrote: > On STMicroelectronics variant of PL18x, the DMA Linked Lists are supported > starting from revision v2 of the peripheral. But it has limitations, > as all the buffers should be aligned on block size (except the last one). > But this cannot be guaranteed with SDIO. We should then have a property > to disable the support of LLI. > > Signed-off-by: Yann Gautier <yann.gautier@xxxxxxxxxxx> Actually I think this is present also on the ux500 variants. See: commit 2253ed4b36dc876d1598c4dab5587e537ec68c34 "mmc: mmci: Support any block sizes for ux500v2 and qcom variant" Spot the variant data "dma_power_of_2". So whatever property you add to the variant data (not in the device tree please) should be added to the ux500 variants as well, it will *VERY* likely have a problem with LLI elements not being a power of 2 as it is the ancestor of later STMicro variants. It might actually be the reason for some annoying WiFi error messages I have seen :/ Yours, Linus Walleij
