1 files changed, 59 insertions, 9 deletions

diff --git a/drivers/net/wireless/ath/ath12k/mhi.c b/drivers/net/wireless/ath/ath12k/mhi.c
index 39e640293cdc..adb8c3ec1950 100644
--- a/drivers/net/wireless/ath/ath12k/mhi.c
+++ b/drivers/net/wireless/ath/ath12k/mhi.c
@@ -1,11 +1,12 @@
 // SPDX-License-Identifier: BSD-3-Clause-Clear
 /*
  * Copyright (c) 2020-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <linux/msi.h>
 #include <linux/pci.h>
+#include <linux/firmware.h>
 
 #include "core.h"
 #include "debug.h"
@@ -13,6 +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[] = {
 	{
@@ -251,6 +254,7 @@ static int ath12k_mhi_get_msi(struct ath12k_pci *ab_pci)
 	u32 user_base_data, base_vector;
 	int ret, num_vectors, i;
 	int *irq;
+	unsigned int msi_data;
 
 	ret = ath12k_pci_get_user_msi_assignment(ab,
 						 "MHI", &num_vectors,
@@ -265,9 +269,15 @@ static int ath12k_mhi_get_msi(struct ath12k_pci *ab_pci)
 	if (!irq)
 		return -ENOMEM;
 
-	for (i = 0; i < num_vectors; i++)
-		irq[i] = ath12k_pci_get_msi_irq(ab->dev,
-						base_vector + i);
+	msi_data = base_vector;
+	for (i = 0; i < num_vectors; i++) {
+		if (test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+			irq[i] = ath12k_pci_get_msi_irq(ab->dev,
+							msi_data++);
+		else
+			irq[i] = ath12k_pci_get_msi_irq(ab->dev,
+							msi_data);
+	}
 
 	ab_pci->mhi_ctrl->irq = irq;
 	ab_pci->mhi_ctrl->nr_irqs = num_vectors;
@@ -351,29 +361,69 @@ 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)
 		return -ENOMEM;
 
-	ath12k_core_create_firmware_path(ab, ATH12K_AMSS_FILE,
-					 ab_pci->amss_path,
-					 sizeof(ab_pci->amss_path));
-
 	ab_pci->mhi_ctrl = mhi_ctrl;
 	mhi_ctrl->cntrl_dev = ab->dev;
-	mhi_ctrl->fw_image = ab_pci->amss_path;
 	mhi_ctrl->regs = ab->mem;
 	mhi_ctrl->reg_len = ab->mem_len;
 	mhi_ctrl->rddm_size = ab->hw_params->rddm_size;
 
+	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;
+			ab->slo_capable = false;
+			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 {
+		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);
 	if (ret) {
 		ath12k_err(ab, "failed to get msi for mhi\n");
 		goto free_controller;
 	}
 
+	if (!test_bit(ATH12K_PCI_FLAG_MULTI_MSI_VECTORS, &ab_pci->flags))
+		mhi_ctrl->irq_flags = IRQF_SHARED | IRQF_NOBALANCING;
+
 	mhi_ctrl->iova_start = 0;
 	mhi_ctrl->iova_stop = 0xffffffff;
 	mhi_ctrl->sbl_size = SZ_512K;