diff options
Diffstat (limited to 'drivers/net/wireless/realtek/rtw88/efuse.c')
| -rw-r--r-- | drivers/net/wireless/realtek/rtw88/efuse.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/wireless/realtek/rtw88/efuse.c b/drivers/net/wireless/realtek/rtw88/efuse.c index 212c8376a8c9..c266c84ef233 100644 --- a/drivers/net/wireless/realtek/rtw88/efuse.c +++ b/drivers/net/wireless/realtek/rtw88/efuse.c @@ -2,6 +2,8 @@ /* Copyright(c) 2018-2019 Realtek Corporation */ +#include <linux/iopoll.h> + #include "main.h" #include "efuse.h" #include "reg.h" @@ -90,6 +92,8 @@ static int rtw_dump_physical_efuse_map(struct rtw_dev *rtwdev, u8 *map) u32 addr; u32 cnt; + rtw_chip_efuse_grant_on(rtwdev); + switch_efuse_bank(rtwdev); /* disable 2.5V LDO */ @@ -113,8 +117,31 @@ static int rtw_dump_physical_efuse_map(struct rtw_dev *rtwdev, u8 *map) *(map + addr) = (u8)(efuse_ctl & BIT_MASK_EF_DATA); } + rtw_chip_efuse_grant_off(rtwdev); + + return 0; +} + +int rtw_read8_physical_efuse(struct rtw_dev *rtwdev, u16 addr, u8 *data) +{ + u32 efuse_ctl; + int ret; + + rtw_write32_mask(rtwdev, REG_EFUSE_CTRL, 0x3ff00, addr); + rtw_write32_clr(rtwdev, REG_EFUSE_CTRL, BIT_EF_FLAG); + + ret = read_poll_timeout(rtw_read32, efuse_ctl, efuse_ctl & BIT_EF_FLAG, + 1000, 100000, false, rtwdev, REG_EFUSE_CTRL); + if (ret) { + *data = EFUSE_READ_FAIL; + return ret; + } + + *data = rtw_read8(rtwdev, REG_EFUSE_CTRL); + return 0; } +EXPORT_SYMBOL(rtw_read8_physical_efuse); int rtw_parse_efuse_map(struct rtw_dev *rtwdev) { |