diff options
| author | Daniel Golle <daniel@makrotopia.org> | 2024-01-24 19:22:09 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-02-05 23:14:34 +0300 |
| commit | 01b4ae7e15df0cdd4b1051ce246c20ea12a8a07e (patch) | |
| tree | d92d6eda3591c0306e1d34a67fb33882f37dcebf /drivers/net/ethernet/mediatek | |
| parent | f08daa806ba78a1458dd7589a4857213cab426d9 (diff) | |
| download | linux-01b4ae7e15df0cdd4b1051ce246c20ea12a8a07e.tar.xz | |
net: ethernet: mtk_eth_soc: set DMA coherent mask to get PPE working
[ Upstream commit cae1f1c36661f28c92a1db9113961a9ebd61dbaa ]
Set DMA coherent mask to 32-bit which makes PPE offloading engine start
working on BPi-R4 which got 4 GiB of RAM.
Fixes: 2d75891ebc09 ("net: ethernet: mtk_eth_soc: support 36-bit DMA addressing on MT7988")
Suggested-by: Elad Yifee <eladwf@users.github.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://lore.kernel.org/r/97e90925368b405f0974b9b15f1b7377c4a329ad.1706113251.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/mediatek')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 20afe79f380a..73ea1e22b1fa 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -4757,7 +4757,10 @@ static int mtk_probe(struct platform_device *pdev) } if (MTK_HAS_CAPS(eth->soc->caps, MTK_36BIT_DMA)) { - err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(36)); + err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(36)); + if (!err) + err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (err) { dev_err(&pdev->dev, "Wrong DMA config\n"); return -EINVAL; |