1 files changed, 40 insertions, 9 deletions

diff --git a/drivers/net/wireless/ath/ath12k/mhi.c b/drivers/net/wireless/ath/ath12k/mhi.c
index b7b31978a434..50b9e44504f7 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.c
+++ b/drivers/net/wireless/ath/ath12k/mhi.c
@@ -14,6 +14,8 @@
 #include "pci.h"
 
 #define MHI_TIMEOUT_DEFAULT_MS	90000
+#define OTP_INVALID_BOARD_ID	0xFFFF
+#define OTP_VALID_DUALMAC_BOARD_ID_MASK		0x1000
 
 static const struct mhi_channel_config ath12k_mhi_channels_qcn9274[] = {
 	{
@@ -359,7 +361,9 @@ int ath12k_mhi_register(struct ath12k_pci *ab_pci)
 {
 	struct ath12k_base *ab = ab_pci->ab;
 	struct mhi_controller *mhi_ctrl;
+	unsigned int board_id;
 	int ret;
+	bool dualmac = false;
 
 	mhi_ctrl = mhi_alloc_controller();
 	if (!mhi_ctrl)
@@ -371,16 +375,43 @@ int ath12k_mhi_register(struct ath12k_pci *ab_pci)
 	mhi_ctrl->reg_len = ab->mem_len;
 	mhi_ctrl->rddm_size = ab->hw_params->rddm_size;
 
-	if (ab->fw.amss_data && ab->fw.amss_len > 0) {
-		/* use MHI firmware file from firmware-N.bin */
-		mhi_ctrl->fw_data = ab->fw.amss_data;
-		mhi_ctrl->fw_sz = ab->fw.amss_len;
+	if (ab->hw_params->otp_board_id_register) {
+		board_id =
+			ath12k_pci_read32(ab, ab->hw_params->otp_board_id_register);
+		board_id = u32_get_bits(board_id, OTP_BOARD_ID_MASK);
+
+		if (!board_id || (board_id == OTP_INVALID_BOARD_ID)) {
+			ath12k_dbg(ab, ATH12K_DBG_BOOT,
+				   "failed to read board id\n");
+		} else if (board_id & OTP_VALID_DUALMAC_BOARD_ID_MASK) {
+			dualmac = true;
+			ath12k_dbg(ab, ATH12K_DBG_BOOT,
+				   "dualmac fw selected for board id: %x\n", board_id);
+		}
+	}
+
+	if (dualmac) {
+		if (ab->fw.amss_dualmac_data && ab->fw.amss_dualmac_len > 0) {
+			/* use MHI firmware file from firmware-N.bin */
+			mhi_ctrl->fw_data = ab->fw.amss_dualmac_data;
+			mhi_ctrl->fw_sz = ab->fw.amss_dualmac_len;
+		} else {
+			ath12k_warn(ab, "dualmac firmware IE not present in firmware-N.bin\n");
+			ret = -ENOENT;
+			goto free_controller;
+		}
 	} else {
-		/* use the old separate mhi.bin MHI firmware file */
-		ath12k_core_create_firmware_path(ab, ATH12K_AMSS_FILE,
-						 ab_pci->amss_path,
-						 sizeof(ab_pci->amss_path));
-		mhi_ctrl->fw_image = ab_pci->amss_path;
+		if (ab->fw.amss_data && ab->fw.amss_len > 0) {
+			/* use MHI firmware file from firmware-N.bin */
+			mhi_ctrl->fw_data = ab->fw.amss_data;
+			mhi_ctrl->fw_sz = ab->fw.amss_len;
+		} else {
+			/* use the old separate mhi.bin MHI firmware file */
+			ath12k_core_create_firmware_path(ab, ATH12K_AMSS_FILE,
+							 ab_pci->amss_path,
+							 sizeof(ab_pci->amss_path));
+			mhi_ctrl->fw_image = ab_pci->amss_path;
+		}
 	}
 
 	ret = ath12k_mhi_get_msi(ab_pci);