[PATCH v5 05/13] wifi: ath12k: avoid m3 firmware download in AHB device IPQ5332

Raj Kumar Bhagat
2025-01-30T04:36:23Z

From: Balamurugan S <quic_bselvara@quicinc.com>

Current ath12k devices, QCN9274 and WCN7850, supports m3.bin firmware
download through ath12k driver. The new ath12k AHB based device
IPQ5332 supports m3 firmware download through remoteproc driver.

Hence, add new parameter (fw.m3_loader) in ath12k_hw_params to avoid
m3 firmware download in IPQ5332.

Tested-on: IPQ5332 hw1.0 AHB WLAN.WBE.1.3.1-00130-QCAHKSWPL_SILICONZ-1
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00210-QCAHKSWPL_SILICONZ-1

Signed-off-by: Balamurugan S <quic_bselvara@quicinc.com>
Co-developed-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Signed-off-by: Raj Kumar Bhagat <quic_rajkbhag@quicinc.com>
---
drivers/net/wireless/ath/ath12k/hw.c | 4 ++++
drivers/net/wireless/ath/ath12k/hw.h | 6 ++++++
drivers/net/wireless/ath/ath12k/qmi.c | 30 ++++++++++++++++-----------
3 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/hw.c b/drivers/net/wireless/ath/ath12k/hw.c
index 86c4ce143169..84f542c02c94 100644
--- a/drivers/net/wireless/ath/ath12k/hw.c
+++ b/drivers/net/wireless/ath/ath12k/hw.c
@@ -1235,6 +1235,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
.dir = "QCN9274/hw1.0",
.board_size = 256 * 1024,
.cal_offset = 128 * 1024,
+ .m3_loader = ath12k_m3_fw_loader_driver,
},
.max_radios = 1,
.single_pdev_only = false,
@@ -1312,6 +1313,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
.dir = "WCN7850/hw2.0",
.board_size = 256 * 1024,
.cal_offset = 256 * 1024,
+ .m3_loader = ath12k_m3_fw_loader_driver,
},

.max_radios = 1,
@@ -1391,6 +1393,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
.dir = "QCN9274/hw2.0",
.board_size = 256 * 1024,
.cal_offset = 128 * 1024,
+ .m3_loader = ath12k_m3_fw_loader_driver,
},
.max_radios = 2,
.single_pdev_only = false,
@@ -1467,6 +1470,7 @@ static const struct ath12k_hw_params ath12k_hw_params[] = {
.dir = "IPQ5332/hw1.0",
.board_size = 256 * 1024,
.cal_offset = 128 * 1024,
+ .m3_loader = ath12k_m3_fw_loader_remoteproc,
},
.max_radios = 1,
.single_pdev_only = false,
diff --git a/drivers/net/wireless/ath/ath12k/hw.h b/drivers/net/wireless/ath/ath12k/hw.h
index acb81b5798ac..fbe1aec475ce 100644
--- a/drivers/net/wireless/ath/ath12k/hw.h
+++ b/drivers/net/wireless/ath/ath12k/hw.h
@@ -146,6 +146,11 @@ struct ath12k_hw_hal_params {
u32 wbm2sw_cc_enable;
};

+enum ath12k_m3_fw_loaders {
+ ath12k_m3_fw_loader_driver,
+ ath12k_m3_fw_loader_remoteproc,
+};
+
struct ath12k_hw_params {
const char *name;
u16 hw_rev;
@@ -154,6 +159,7 @@ struct ath12k_hw_params {
const char *dir;
size_t board_size;
size_t cal_offset;
+ enum ath12k_m3_fw_loaders m3_loader;
} fw;

u8 max_radios;
diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c
index 5c3563383fab..3d1f5309c962 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.c
+++ b/drivers/net/wireless/ath/ath12k/qmi.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: BSD-3-Clause-Clear
/*
* Copyright (c) 2018-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2021-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2021-2025 Qualcomm Innovation Center, Inc. All rights reserved.
*/

#include <linux/elf.h>
@@ -2169,10 +2169,12 @@ int ath12k_qmi_host_cap_send(struct ath12k_base *ab)
req.bdf_support_valid = 1;
req.bdf_support = 1;

- req.m3_support_valid = 1;
- req.m3_support = 1;
- req.m3_cache_support_valid = 1;
- req.m3_cache_support = 1;
+ if (ab->hw_params->fw.m3_loader == ath12k_m3_fw_loader_driver) {
+ req.m3_support_valid = 1;
+ req.m3_support = 1;
+ req.m3_cache_support_valid = 1;
+ req.m3_cache_support = 1;
+ }

req.cal_done_valid = 1;
req.cal_done = ab->qmi.cal_done;
@@ -2936,6 +2938,9 @@ static void ath12k_qmi_m3_free(struct ath12k_base *ab)
{
struct m3_mem_region *m3_mem = &ab->qmi.m3_mem;

+ if (ab->hw_params->fw.m3_loader == ath12k_m3_fw_loader_remoteproc)
+ return;
+
if (!m3_mem->vaddr)
return;

@@ -3016,15 +3021,16 @@ int ath12k_qmi_wlanfw_m3_info_send(struct ath12k_base *ab)
struct qmi_txn txn;
int ret = 0;

- ret = ath12k_qmi_m3_load(ab);
- if (ret) {
- ath12k_err(ab, "failed to load m3 firmware: %d", ret);
- return ret;
+ if (ab->hw_params->fw.m3_loader == ath12k_m3_fw_loader_driver) {
+ ret = ath12k_qmi_m3_load(ab);
+ if (ret) {
+ ath12k_err(ab, "failed to load m3 firmware: %d", ret);
+ return ret;
+ }
+ req.addr = m3_mem->paddr;
+ req.size = m3_mem->size;
}

- req.addr = m3_mem->paddr;
- req.size = m3_mem->size;
-
ret = qmi_txn_init(&ab->qmi.handle, &txn,
qmi_wlanfw_m3_info_resp_msg_v01_ei, &resp);
if (ret < 0)
--
2.34.1