Commit d3c07a9e authored by Chih-Min Chen's avatar Chih-Min Chen Committed by Felix Fietkau
Browse files

mt76: mt7915: fix unexpected firmware mode 



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: default avatarChih-Min Chen <chih-min.chen@mediatek.com>
Signed-off-by: default avatarRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 9e47a683

drivers/net/wireless/mediatek/mt76/mt7915/init.c

+6 −0
Original line number Diff line number Diff line
@@ -135,6 +135,12 @@ 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;

drivers/net/wireless/mediatek/mt76/mt7915/regs.h

+7 −0
Original line number Diff line number Diff line
@@ -360,6 +360,13 @@ 
#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))