[PATCH ath-next 06/15] wifi: ath12k: add initial Wi-Fi 8 hw params and init helper for QCN9575
From: Madhavan Ganesan
Date: Thu Nov 12 2026 - 04:41:29 EST
QCN9575 is a Wi-Fi 8 target that requires its own hardware-params entry
to be matched at probe time. Add ATH12K_HW_QCN9575_HW20 to ath12k_hw_rev
and populate the initial parameter set in wifi8/hw.c. Introduce
ath12k_wifi8_hw_init() to walk the Wi-Fi 8 hw_params table and select the
matching entry at runtime. Hardware-specific operation pointers (hw_ops,
wmi_init, mhi_config) and CE config tables are left as NULL placeholders
until the corresponding subsystem support is added. Explicitly initialize
every top-level member of the hw_params entry, including zero/NULL/false
defaults, rather than relying on implicit designated-initializer
zero-fill, so the full set of fields is visible and easy to audit as
later patches replace individual placeholders with real values. Add
wifi8/hw.h and wire wifi8/hw.c into the wifi8/Makefile.
Define QCN9575_QFPROM_RAW_RFA_PDET_ROW13_LSB with the correct OTP
register address 0x1F90070 and set it as the otp_board_id_register in the
QCN9575 hw_params.
Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.6-01243-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.1.c7-00108-QCAHMTSWPL_V1.0_V2.0_SILICONZ_UPSTREAM-3
Signed-off-by: Madhavan Ganesan <madhavan.ganesan@xxxxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/ath12k/core.h | 1 +
drivers/net/wireless/ath/ath12k/qmi.h | 1 +
drivers/net/wireless/ath/ath12k/wifi8/Makefile | 1 +
drivers/net/wireless/ath/ath12k/wifi8/hw.c | 135 +++++++++++++++++++++++++
drivers/net/wireless/ath/ath12k/wifi8/hw.h | 14 +++
5 files changed, 152 insertions(+)
diff --git a/drivers/net/wireless/ath/ath12k/core.h b/drivers/net/wireless/ath/ath12k/core.h
index 2a4b5e5e1af3..56b509841126 100644
--- a/drivers/net/wireless/ath/ath12k/core.h
+++ b/drivers/net/wireless/ath/ath12k/core.h
@@ -159,6 +159,7 @@ enum ath12k_hw_rev {
ATH12K_HW_QCC2072_HW10,
ATH12K_HW_IPQ5424_HW10,
ATH12K_HW_QCN6432_HW10,
+ ATH12K_HW_QCN9575_HW20,
};
#define ATH12K_IRQ_NUM_MAX 57
diff --git a/drivers/net/wireless/ath/ath12k/qmi.h b/drivers/net/wireless/ath/ath12k/qmi.h
index fc68ff649352..438ab92802bf 100644
--- a/drivers/net/wireless/ath/ath12k/qmi.h
+++ b/drivers/net/wireless/ath/ath12k/qmi.h
@@ -19,6 +19,7 @@
#define ATH12K_QMI_WLFW_SERVICE_INS_ID_V01_WCN7850 0x1
#define ATH12K_QMI_WLFW_SERVICE_INS_ID_V01_QCN9274 0x07
+#define ATH12K_QMI_WLFW_SERVICE_INS_ID_V01_QCN9575 0x07
#define ATH12K_QMI_WLFW_SERVICE_INS_ID_V01_IPQ5332 0x2
#define ATH12K_QMI_WLFW_SERVICE_INS_ID_V01_QCN6432 0x60
#define ATH12K_QMI_WLANFW_MAX_TIMESTAMP_LEN_V01 32
diff --git a/drivers/net/wireless/ath/ath12k/wifi8/Makefile b/drivers/net/wireless/ath/ath12k/wifi8/Makefile
index b8c5b6d3a7bd..277b5f13754d 100644
--- a/drivers/net/wireless/ath/ath12k/wifi8/Makefile
+++ b/drivers/net/wireless/ath/ath12k/wifi8/Makefile
@@ -1,4 +1,5 @@
# SPDX-License-Identifier: BSD-3-Clause-Clear
obj-$(CONFIG_ATH12K) += ath12k_wifi8.o
ath12k_wifi8-y += core.o \
+ hw.o \
pci.o
diff --git a/drivers/net/wireless/ath/ath12k/wifi8/hw.c b/drivers/net/wireless/ath/ath12k/wifi8/hw.c
new file mode 100644
index 000000000000..6e89a42111b6
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/wifi8/hw.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: BSD-3-Clause-Clear
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bitops.h>
+#include <linux/types.h>
+
+#include "../core.h"
+#include "../debug.h"
+#include "../hw.h"
+#include "../mhi.h"
+#include "hw.h"
+
+static const struct ath12k_hw_params ath12k_wifi8_hw_params[] = {
+ {
+ .name = "qcn9575 hw2.0",
+ .hw_rev = ATH12K_HW_QCN9575_HW20,
+ .fw = {
+ .dir = "QCN9575/hw2.0",
+ .board_size = 256 * 1024,
+ .cal_offset = 128 * 1024,
+ .m3_loader = ath12k_m3_fw_loader_driver,
+ .download_aux_ucode = false,
+ },
+ .max_radios = 2,
+ .single_pdev_only = false,
+ .qmi_service_ins_id = ATH12K_QMI_WLFW_SERVICE_INS_ID_V01_QCN9575,
+ .qmi_max_chunk_size = SZ_2M,
+ .internal_sleep_clock = false,
+
+ .hw_ops = NULL,
+ .ring_mask = NULL,
+
+ .host_ce_config = NULL,
+ .ce_count = 16,
+ .target_ce_config = NULL,
+ .target_ce_count = 0,
+ .svc_to_ce_map = NULL,
+ .svc_to_ce_map_len = 0,
+
+ .rxdma1_enable = false,
+ .num_rxdma_per_pdev = 0,
+ .num_rxdma_dst_ring = 0,
+ .rx_mac_buf_ring = false,
+ .vdev_start_delay = false,
+
+ .interface_modes = BIT(NL80211_IFTYPE_STATION) |
+ BIT(NL80211_IFTYPE_AP) |
+ BIT(NL80211_IFTYPE_MESH_POINT),
+ .supports_monitor = false,
+ .supports_cong_ctrl_max_msdus = false,
+
+ .idle_ps = false,
+ .download_calib = true,
+ .supports_suspend = false,
+ .tcl_ring_retry = false,
+ .reoq_lut_support = false,
+ .supports_shadow_regs = false,
+
+ .num_tcl_banks = 0,
+ .max_tx_ring = 0,
+
+ .mhi_config = NULL,
+
+ .wmi_init = NULL,
+
+ .qmi_cnss_feature_bitmap = BIT(CNSS_QDSS_CFG_MISS_V01),
+
+ .rfkill_pin = 0,
+ .rfkill_cfg = 0,
+ .rfkill_on_level = 0,
+
+ .rddm_size = 0x600000,
+
+ .def_num_link = 0,
+ .max_mlo_peer = 256,
+
+ .otp_board_id_register = QCN9575_QFPROM_RAW_RFA_PDET_ROW13_LSB,
+
+ .supports_sta_ps = false,
+
+ .acpi_guid = NULL,
+ .supports_dynamic_smps_6ghz = true,
+
+ .iova_mask = 0,
+
+ .supports_aspm = true,
+
+ .ce_ie_addr = NULL,
+ .ce_remap = NULL,
+ .bdf_addr_offset = 0,
+
+ .current_cc_support = false,
+
+ .dp_primary_link_only = false,
+ .client = {
+ .max_client_single = 0,
+ .max_client_dbs = 0,
+ .max_client_dbs_sbs = 0,
+ },
+
+ .host_alloc_ml_id = false,
+ .advertise_iface_mac_pool = false,
+ .hybrid_bus_type = false,
+
+ .support_hw_link_id = true,
+ },
+};
+
+int ath12k_wifi8_hw_init(struct ath12k_base *ab)
+{
+ const struct ath12k_hw_params *hw_params = NULL;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(ath12k_wifi8_hw_params); i++) {
+ hw_params = &ath12k_wifi8_hw_params[i];
+
+ if (hw_params->hw_rev == ab->hw_rev)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(ath12k_wifi8_hw_params)) {
+ ath12k_err(ab, "Unsupported Wi-Fi 8 hardware version: 0x%x\n",
+ ab->hw_rev);
+ return -EINVAL;
+ }
+
+ ab->hw_params = hw_params;
+
+ ath12k_info(ab, "Wi-Fi 8 Hardware name: %s\n", ab->hw_params->name);
+
+ return 0;
+}
diff --git a/drivers/net/wireless/ath/ath12k/wifi8/hw.h b/drivers/net/wireless/ath/ath12k/wifi8/hw.h
new file mode 100644
index 000000000000..ad11370f9752
--- /dev/null
+++ b/drivers/net/wireless/ath/ath12k/wifi8/hw.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: BSD-3-Clause-Clear */
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#ifndef ATH12K_WIFI8_HW_H
+#define ATH12K_WIFI8_HW_H
+
+#define QCN9575_QFPROM_RAW_RFA_PDET_ROW13_LSB 0x1F90070
+
+struct ath12k_base;
+int ath12k_wifi8_hw_init(struct ath12k_base *ab);
+
+#endif /* ATH12K_WIFI8_HW_H */
--
2.34.1