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mt76: mt7915: fix unexpected firmware mode

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Avoid firmware falling into spectrum mode since that will set
unexpected PSE/PLE thresholds which lead to Tx hang.

This mode should be cleaned before firmware download stage.

Signed-off-by: Chih-Min Chen <[email protected]>
Signed-off-by: Ryder Lee <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Chih-Min Chen
2020-09-04 19:31:36 +02:00
committed by Felix Fietkau
parent e22c65cdc5
commit bab866a01e
2 changed files with 13 additions and 0 deletions
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mt7915/init.c
+6
View File
@@ -137,6 +137,12 @@ static int mt7915_init_hardware(struct mt7915_dev *dev)
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
/*
* force firmware operation mode into normal state,
* which should be set before firmware download stage.
*/
mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
ret = mt7915_mcu_init(dev);
if (ret)
return ret;
mt7915/regs.h
+7
View File
@@ -365,6 +365,13 @@
#define MT_HIF_REMAP_L2_BASE GENMASK(31, 12)
#define MT_HIF_REMAP_BASE_L2 0x00000
#define MT_SWDEF_BASE 0x41f200
#define MT_SWDEF(ofs) (MT_SWDEF_BASE + (ofs))
#define MT_SWDEF_MODE MT_SWDEF(0x3c)
#define MT_SWDEF_NORMAL_MODE 0
#define MT_SWDEF_ICAP_MODE 1
#define MT_SWDEF_SPECTRUM_MODE 2
#define MT_TOP_BASE 0x18060000
#define MT_TOP(ofs) (MT_TOP_BASE + (ofs))