Clear some bits in some registers in order to allow RTL8851BU to power
on. Also tested with RTL8832BU and RTL8832CU.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@xxxxxxxxx>
---
drivers/net/wireless/realtek/rtw89/mac.c | 8 ++++++++
drivers/net/wireless/realtek/rtw89/reg.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index 99f01fff90fe..d3cf67dfabc9 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -1458,6 +1458,14 @@ static int rtw89_mac_power_switch(struct rtw89_dev *rtwdev, bool on)
int ret;
u8 val;
+ if (rtwdev->hci.type == RTW89_HCI_TYPE_USB &&
+ rtw89_read32_mask(rtwdev, R_AX_GPIO_MUXCFG, B_AX_BOOT_MODE)) {
+ rtw89_write32_clr(rtwdev, R_AX_SYS_PW_CTRL, B_AX_APFN_ONMAC);
+ rtw89_write32_clr(rtwdev, R_AX_SYS_STATUS1, B_AX_AUTO_WLPON);
+ rtw89_write32_clr(rtwdev, R_AX_GPIO_MUXCFG, B_AX_BOOT_MODE);
+ rtw89_write32_clr(rtwdev, R_AX_RSV_CTRL, B_AX_R_DIS_PRST);
+ }
+
if (on) {
cfg_seq = chip->pwr_on_seq;
cfg_func = chip->ops->pwr_on_func;
diff --git a/drivers/net/wireless/realtek/rtw89/reg.h b/drivers/net/wireless/realtek/rtw89/reg.h
index f05c81ae5869..9d9e1b02bfc7 100644
--- a/drivers/net/wireless/realtek/rtw89/reg.h
+++ b/drivers/net/wireless/realtek/rtw89/reg.h
@@ -182,6 +182,7 @@
#define R_AX_SYS_STATUS1 0x00F4
#define B_AX_SEL_0XC0_MASK GENMASK(17, 16)
+#define B_AX_AUTO_WLPON BIT(10)
#define B_AX_PAD_HCI_SEL_V2_MASK GENMASK(5, 3)
#define MAC_AX_HCI_SEL_SDIO_UART 0
#define MAC_AX_HCI_SEL_MULTI_USB 1
--
2.49.0
