The SDMA engine doesn't seem to be fast enough to keep up with HS400 support. In preparation to add HS400 support to the driver switch to ADMA when available.
Assisted-by: Claude Opus 4.7 <[email protected]> Signed-off-by: Sascha Hauer <[email protected]> --- drivers/mci/rockchip-dwcmshc-sdhci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/mci/rockchip-dwcmshc-sdhci.c b/drivers/mci/rockchip-dwcmshc-sdhci.c index 04ee528f07..23c887e906 100644 --- a/drivers/mci/rockchip-dwcmshc-sdhci.c +++ b/drivers/mci/rockchip-dwcmshc-sdhci.c @@ -361,6 +361,11 @@ static int rk_sdhci_probe(struct device *dev) sdhci_setup_host(&host->sdhci); + ret = sdhci_setup_adma(&host->sdhci); + if (ret && ret != -ENOTSUPP) + dev_warn(dev, "ADMA setup failed (%pe), falling back to SDMA\n", + ERR_PTR(ret)); + dev->priv = host; return mci_register(&host->mci); -- 2.47.3
