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.
Acked-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Tested-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Fiona Klute <fiona.klute@xxxxxx>
---
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 298663b0358..5fa38b1068e 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_mask(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
