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From: Fiona Klute <fiona.klute@gmx.de>
To: linux-wireless@vger.kernel.org, Ping-Ke Shih <pkshih@realtek.com>
Cc: "Kalle Valo" <kvalo@kernel.org>,
	"Ulf Hansson" <ulf.hansson@linaro.org>,
	linux-mmc@vger.kernel.org, "Pavel Machek" <pavel@ucw.cz>,
	"Ondřej Jirman" <megi@xff.cz>, "Fiona Klute" <fiona.klute@gmx.de>
Subject: [PATCH 8/9] wifi: rtw88: Reset 8703b firmware before download
Date: Fri,  2 Feb 2024 13:10:47 +0100	[thread overview]
Message-ID: <20240202121050.977223-9-fiona.klute@gmx.de> (raw)
In-Reply-To: <20240202121050.977223-1-fiona.klute@gmx.de>

Sometimes 8703b firmware is still active from previous use when the
driver needs to download the firmware during MAC activation. Reset it
in that case.

Signed-off-by: Fiona Klute <fiona.klute@gmx.de>
---
 drivers/net/wireless/realtek/rtw88/mac.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c
index 298663b035..b6de097e44 100644
--- a/drivers/net/wireless/realtek/rtw88/mac.c
+++ b/drivers/net/wireless/realtek/rtw88/mac.c
@@ -936,6 +936,12 @@ static int __rtw_download_firmware_legacy(struct rtw_dev *rtwdev,
 {
 	int ret = 0;

+	/* reset firmware if still present */
+	if (rtwdev->chip->id == RTW_CHIP_TYPE_8703B &&
+	    rtw_read8(rtwdev, REG_MCUFW_CTRL) & BIT_RAM_DL_SEL) {
+		rtw_write8(rtwdev, REG_MCUFW_CTRL, 0x00);
+	}
+
 	en_download_firmware_legacy(rtwdev, true);
 	ret = download_firmware_legacy(rtwdev, fw->firmware->data, fw->firmware->size);
 	en_download_firmware_legacy(rtwdev, false);
--
2.43.0


  parent reply	other threads:[~2024-02-02 12:11 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-02 12:10 [PATCH 0/9] rtw88: Add support for RTL8723CS/RTL8703B Fiona Klute
2024-02-02 12:10 ` [PATCH 1/9] wifi: rtw88: Shared module for rtw8723x devices Fiona Klute
2024-02-03 14:20   ` kernel test robot
2024-02-03 15:04   ` kernel test robot
2024-02-03 21:47   ` kernel test robot
2024-02-04 10:03   ` kernel test robot
2024-02-05  1:45   ` Ping-Ke Shih
2024-02-05 16:47     ` Fiona Klute
2024-02-06  0:59       ` Ping-Ke Shih
2024-02-02 12:10 ` [PATCH 2/9] wifi: rtw88: Debug output for rtw8723x EFUSE Fiona Klute
2024-02-05  2:17   ` Ping-Ke Shih
2024-02-05 17:10     ` Fiona Klute
2024-02-02 12:10 ` [PATCH 3/9] wifi: rtw88: Add definitions for 8703b chip Fiona Klute
2024-02-02 12:10 ` [PATCH 4/9] wifi: rtw88: Add rtw8703b.h Fiona Klute
2024-02-05  2:24   ` Ping-Ke Shih
2024-02-06  1:08     ` Fiona Klute
2024-02-06  2:02       ` Ping-Ke Shih
2024-02-02 12:10 ` [PATCH 5/9] wifi: rtw88: Add rtw8703b.c Fiona Klute
2024-02-05  3:01   ` Ping-Ke Shih
2024-02-05 19:06     ` Fiona Klute
2024-02-06  1:37       ` Ping-Ke Shih
2024-02-06  8:12         ` Pavel Machek
2024-02-07  5:58         ` Ping-Ke Shih
2024-02-02 12:10 ` [PATCH 6/9] wifi: rtw88: Add rtw8703b_tables.h Fiona Klute
2024-02-02 12:10 ` [PATCH 7/9] wifi: rtw88: Add rtw8703b_tables.c Fiona Klute
2024-02-02 12:10 ` Fiona Klute [this message]
2024-02-05  3:05   ` [PATCH 8/9] wifi: rtw88: Reset 8703b firmware before download Ping-Ke Shih
2024-02-02 12:10 ` [PATCH 9/9] wifi: rtw88: SDIO device driver for RTL8723CS Fiona Klute
2024-02-05  3:10   ` Ping-Ke Shih
2024-02-05 16:07   ` Ulf Hansson
2024-02-02 13:13 ` [PATCH 0/9] rtw88: Add support for RTL8723CS/RTL8703B Dmitry Antipov
2024-02-02 13:27   ` Fiona Klute
2024-02-02 13:54     ` Dmitry Antipov
2024-02-02 14:13       ` Fiona Klute
2024-02-02 20:19 ` Pavel Machek
2024-02-03  0:36   ` Fiona Klute
2024-02-02 20:44 ` Pavel Machek
2024-02-02 20:52 ` Pavel Machek
2024-02-03 11:33   ` Fiona Klute

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