netdev - [PATCH net-next v4 6/7] net: airoha: npu: Enable core 3 for WiFi offloading

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Message-Id: <20250717-airoha-en7581-wlan-offlaod-v4-6-6db178391ed2@kernel.org>
Date: Thu, 17 Jul 2025 08:57:47 +0200
From: Lorenzo Bianconi <lorenzo@...nel.org>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Lorenzo Bianconi <lorenzo@...nel.org>
Cc: Simon Horman <horms@...nel.org>, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org, 
 devicetree@...r.kernel.org
Subject: [PATCH net-next v4 6/7] net: airoha: npu: Enable core 3 for WiFi
 offloading

NPU core 3 is responsible for WiFi offloading so enable it during NPU
probe.

Reviewed-by: Simon Horman <horms@...nel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
---
 drivers/net/ethernet/airoha/airoha_npu.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/airoha/airoha_npu.c b/drivers/net/ethernet/airoha/airoha_npu.c
index 68ddc940f675b42599bd2c0245dc715bb56edb32..90000496b6a234897d4f208ab78d54af14be4aac 100644
--- a/drivers/net/ethernet/airoha/airoha_npu.c
+++ b/drivers/net/ethernet/airoha/airoha_npu.c
@@ -724,8 +724,7 @@ static int airoha_npu_probe(struct platform_device *pdev)
 	usleep_range(1000, 2000);

 	/* enable NPU cores */
-	/* do not start core3 since it is used for WiFi offloading */
-	regmap_write(npu->regmap, REG_CR_BOOT_CONFIG, 0xf7);
+	regmap_write(npu->regmap, REG_CR_BOOT_CONFIG, 0xff);
 	regmap_write(npu->regmap, REG_CR_BOOT_TRIGGER, 0x1);
 	msleep(100);

-- 
2.50.1