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wifi: mt76: mt7996: fix fw loading timeout

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Fix the following firmware loading error due to a wrong dma register
configuration if wed is disabled.

[    8.245881] mt7996e_hif 0001:01:00.0: assign IRQ: got 128
[    8.251308] mt7996e_hif 0001:01:00.0: enabling device (0000 -> 0002)
[    8.257674] mt7996e_hif 0001:01:00.0: enabling bus mastering
[    8.263488] mt7996e 0000:01:00.0: assign IRQ: got 126
[    8.268537] mt7996e 0000:01:00.0: enabling device (0000 -> 0002)
[    8.274551] mt7996e 0000:01:00.0: enabling bus mastering
[   28.648773] mt7996e 0000:01:00.0: Message 00000010 (seq 1) timeout
[   28.654959] mt7996e 0000:01:00.0: Failed to get patch semaphore
[   29.661033] mt7996e: probe of 0000:01:00.0 failed with error -11

Suggested-by: Sujuan Chen" <sujuan.chen@mediatek.com>
Fixes: 4920a3a128 ("wifi: mt76: mt7996: set DMA mask to 36 bits for boards with more than 4GB of RAM")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi
2023-12-21 10:41:18 +01:00
committed by Felix Fietkau
parent 5302615954
commit 030d2e287a
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/mediatek/mt76/mt7996/dma.c
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@@ -237,7 +237,8 @@ void mt7996_dma_start(struct mt7996_dev *dev, bool reset, bool wed_reset)
MT_WFDMA0_GLO_CFG_TX_DMA_EN |
MT_WFDMA0_GLO_CFG_RX_DMA_EN |
MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2 |
MT_WFDMA0_GLO_CFG_EXT_EN);
if (dev->hif2)
mt76_set(dev, MT_WFDMA0_GLO_CFG + hif1_ofs,