diff --git a/drivers/net/wireless/realtek/rtw89/efuse.c b/drivers/net/wireless/realtek/rtw89/efuse.c
new file mode 100644
index 000000000000..b3d53354c5c8
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw89/efuse.c
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright(c) 2019-2020  Realtek Corporation
+ */
+
+#include "core.h"
+#include "mac.h"
+#include "reg.h"
+#include "efuse.h"
+#include "debug.h"
+
+enum rtw89_efuse_bank {
+	RTW89_EFUSE_BANK_WIFI,
+	RTW89_EFUSE_BANK_BT,
+};
+
+static int rtw89_switch_efuse_bank(struct rtw89_dev *rtwdev,
+				   enum rtw89_efuse_bank bank)
+{
+	u8 val;
+
+	val = rtw89_read32_mask(rtwdev, R_AX_EFUSE_CTRL_1,
+				B_AX_EF_CELL_SEL_MASK);
+	if (bank == val)
+		return 0;
+
+	rtw89_write32_mask(rtwdev, R_AX_EFUSE_CTRL_1, B_AX_EF_CELL_SEL_MASK,
+			   bank);
+
+	val = rtw89_read32_mask(rtwdev, R_AX_EFUSE_CTRL_1,
+				B_AX_EF_CELL_SEL_MASK);
+	if (bank == val)
+		return 0;
+
+	return -EBUSY;
+}
+
+static int rtw89_dump_physical_efuse_map(struct rtw89_dev *rtwdev, u8 *map,
+					 u32 dump_addr, u32 dump_size)
+{
+	u32 efuse_ctl;
+	u32 addr;
+	int ret;
+
+	rtw89_switch_efuse_bank(rtwdev, RTW89_EFUSE_BANK_WIFI);
+
+	for (addr = dump_addr; addr < dump_addr + dump_size; addr++) {
+		efuse_ctl = u32_encode_bits(addr, B_AX_EF_ADDR_MASK);
+		rtw89_write32(rtwdev, R_AX_EFUSE_CTRL, efuse_ctl & ~B_AX_EF_RDY);
+
+		ret = read_poll_timeout_atomic(rtw89_read32, efuse_ctl,
+					       efuse_ctl & B_AX_EF_RDY, 1, 1000000,
+					       true, rtwdev, R_AX_EFUSE_CTRL);
+		if (ret)
+			return -EBUSY;
+
+		*map++ = (u8)(efuse_ctl & 0xff);
+	}
+
+	return 0;
+}
+
+#define invalid_efuse_header(hdr1, hdr2) \
+	((hdr1) == 0xff || (hdr2) == 0xff)
+#define invalid_efuse_content(word_en, i) \
+	(((word_en) & BIT(i)) != 0x0)
+#define get_efuse_blk_idx(hdr1, hdr2) \
+	((((hdr2) & 0xf0) >> 4) | (((hdr1) & 0x0f) << 4))
+#define block_idx_to_logical_idx(blk_idx, i) \
+	(((blk_idx) << 3) + ((i) << 1))
+static int rtw89_dump_logical_efuse_map(struct rtw89_dev *rtwdev, u8 *phy_map,
+					u8 *log_map)
+{
+	u32 physical_size = rtwdev->chip->physical_efuse_size;
+	u32 logical_size = rtwdev->chip->logical_efuse_size;
+	u8 sec_ctrl_size = rtwdev->chip->sec_ctrl_efuse_size;
+	u32 phy_idx = sec_ctrl_size;
+	u32 log_idx;
+	u8 hdr1, hdr2;
+	u8 blk_idx;
+	u8 word_en;
+	int i;
+
+	while (phy_idx < physical_size - sec_ctrl_size) {
+		hdr1 = phy_map[phy_idx];
+		hdr2 = phy_map[phy_idx + 1];
+		if (invalid_efuse_header(hdr1, hdr2))
+			break;
+
+		blk_idx = get_efuse_blk_idx(hdr1, hdr2);
+		word_en = hdr2 & 0xf;
+		phy_idx += 2;
+
+		for (i = 0; i < 4; i++) {
+			if (invalid_efuse_content(word_en, i))
+				continue;
+
+			log_idx = block_idx_to_logical_idx(blk_idx, i);
+			if (phy_idx + 1 > physical_size - sec_ctrl_size - 1 ||
+			    log_idx + 1 > logical_size)
+				return -EINVAL;
+
+			log_map[log_idx] = phy_map[phy_idx];
+			log_map[log_idx + 1] = phy_map[phy_idx + 1];
+			phy_idx += 2;
+		}
+	}
+	return 0;
+}
+
+int rtw89_parse_efuse_map(struct rtw89_dev *rtwdev)
+{
+	u32 phy_size = rtwdev->chip->physical_efuse_size;
+	u32 log_size = rtwdev->chip->logical_efuse_size;
+	u8 *phy_map = NULL;
+	u8 *log_map = NULL;
+	int ret;
+
+	if (rtw89_read16(rtwdev, R_AX_SYS_EEPROM_CTRL) & B_AX_AUTOLOAD_SUS)
+		rtwdev->efuse.valid = true;
+	else
+		rtw89_warn(rtwdev, "failed to check efuse autoload\n");
+
+	phy_map = kmalloc(phy_size, GFP_KERNEL);
+	log_map = kmalloc(log_size, GFP_KERNEL);
+
+	if (!phy_map || !log_map) {
+		ret = -ENOMEM;
+		goto out_free;
+	}
+
+	ret = rtw89_dump_physical_efuse_map(rtwdev, phy_map, 0, phy_size);
+	if (ret) {
+		rtw89_warn(rtwdev, "failed to dump efuse physical map\n");
+		goto out_free;
+	}
+
+	memset(log_map, 0xff, log_size);
+	ret = rtw89_dump_logical_efuse_map(rtwdev, phy_map, log_map);
+	if (ret) {
+		rtw89_warn(rtwdev, "failed to dump efuse logical map\n");
+		goto out_free;
+	}
+
+	rtw89_hex_dump(rtwdev, RTW89_DBG_FW, "log_map: ", log_map, log_size);
+
+	ret = rtwdev->chip->ops->read_efuse(rtwdev, log_map);
+	if (ret) {
+		rtw89_warn(rtwdev, "failed to read efuse map\n");
+		goto out_free;
+	}
+
+out_free:
+	kfree(log_map);
+	kfree(phy_map);
+
+	return ret;
+}
+
+int rtw89_parse_phycap_map(struct rtw89_dev *rtwdev)
+{
+	u32 phycap_addr = rtwdev->chip->phycap_addr;
+	u32 phycap_size = rtwdev->chip->phycap_size;
+	u8 *phycap_map = NULL;
+	int ret = 0;
+
+	if (!phycap_size)
+		return 0;
+
+	phycap_map = kmalloc(phycap_size, GFP_KERNEL);
+	if (!phycap_map)
+		return -ENOMEM;
+
+	ret = rtw89_dump_physical_efuse_map(rtwdev, phycap_map,
+					    phycap_addr, phycap_size);
+	if (ret) {
+		rtw89_warn(rtwdev, "failed to dump phycap map\n");
+		goto out_free;
+	}
+
+	ret = rtwdev->chip->ops->read_phycap(rtwdev, phycap_map);
+	if (ret) {
+		rtw89_warn(rtwdev, "failed to read phycap map\n");
+		goto out_free;
+	}
+
+out_free:
+	kfree(phycap_map);
+
+	return ret;
+}
diff --git a/drivers/net/wireless/realtek/rtw89/efuse.h b/drivers/net/wireless/realtek/rtw89/efuse.h
new file mode 100644
index 000000000000..c5e36f06e4be
--- /dev/null
+++ b/drivers/net/wireless/realtek/rtw89/efuse.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/* Copyright(c) 2019-2020  Realtek Corporation
+ */
+
+#ifndef __RTW89_EFUSE_H__
+#define __RTW89_EFUSE_H__
+
+int rtw89_parse_efuse_map(struct rtw89_dev *rtwdev);
+int rtw89_parse_phycap_map(struct rtw89_dev *rtwdev);
+
+#endif
