WCN6750 is non-DBS 2x2 11AX chipset. Unlike QCA6390/WCN6855 which are DBS (dual band simultaneous) solutions (2 LMACs), WCN6750 has a single LMAC supporting 2G, 5G and 6G bands. It can be operated only on one band at any given point. WCN6750 is a PCIe device. Unlike other supported ATH11K PCIe devices which are directly attached to APSS (Application Processor SubSystem), WCN6750 is not attached to APSS, it is attached to the WPSS (Wireless Processor SubSystem) Q6 processor, the FW which runs on the Q6 processor will enumerate the PCIe device. Since APSS is unaware of such a device, it has to be registered as a platform device(AHB) to the kernel for device probing. Like other AHB devices, remoteproc APIs are used to boot up or shutdown of WCN6750. WCN6750 uses both AHB and PCIe ATH11K APIs for it's operation. It uses AHB APIs for device probe and booting of the remote processor. Once device is booted up, it uses ATH11K PCIe APIs for initialization and register access. Hence, it is referred as hybrid bus device in the rest of this series. Since the chip is enumerated by WPSS Q6, device information like BAR and BAR size is not known to the APSS processor. A new QMI message called device info QMI request will be sent to the target for fetching these details. STA and AP modes are supported; Basic connectivity and ping are verified in both the modes. Tested-on: WCN6750 hw1.0 AHB WLAN.MSL.1.0.1-00573-QCAMSLSWPLZ-1 Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1 Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.5.0.1-01100-QCAHKSWPL_SILICONZ-1 Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.4.0.1-00192-QCAHKSWPL_SILICONZ-1 Note: * Remoteproc driver changes for WCN6750 which takes care of downloading the FW and booting of Q6 processor are under upstream review. Link: https://patchwork.kernel.org/project/linux-remoteproc/list/?series=582475 Manikanta Pubbisetty (19): ath11k: PCI changes to support WCN6750 ath11k: Refactor PCI code to support hybrid bus devices ath11k: Choose MSI config based on HW revision ath11k: Refactor MSI logic ath11k: Remove core PCI references from PCI common code ath11k: Add HW params for WCN6750 ath11k: Add bus params for WCN6750 ath11k: Add register access logic for WCN6750 ath11k: Fetch device information via QMI for WCN6750 ath11k: Add QMI changes for WCN6750 ath11k: HAL changes to support WCN6750 ath11k: Datapath changes to support WCN6750 ath11k: Fix RX de-fragmentation issue on WCN6750 ath11k: Do not put HW in DBS mode for WCN6750 ath11k: WMI changes to support WCN6750 ath11k: Update WBM idle ring HP after FW mode on ath11k: Add support for WCN6750 device ath11k: Add support for targets without trustzone dt: bindings: net: add bindings of WCN6750 for ath11k .../bindings/net/wireless/qcom,ath11k.yaml | 333 +++++--- drivers/net/wireless/ath/ath11k/Makefile | 4 +- drivers/net/wireless/ath/ath11k/ahb.c | 331 +++++++- drivers/net/wireless/ath/ath11k/ahb.h | 10 + drivers/net/wireless/ath/ath11k/ce.c | 4 +- drivers/net/wireless/ath/ath11k/core.c | 104 ++- drivers/net/wireless/ath/ath11k/core.h | 35 + drivers/net/wireless/ath/ath11k/hal.c | 15 +- drivers/net/wireless/ath/ath11k/hal.h | 17 +- drivers/net/wireless/ath/ath11k/hw.c | 175 +++- drivers/net/wireless/ath/ath11k/hw.h | 13 +- drivers/net/wireless/ath/ath11k/mhi.c | 16 +- drivers/net/wireless/ath/ath11k/pci.c | 893 +++------------------ drivers/net/wireless/ath/ath11k/pci.h | 28 +- drivers/net/wireless/ath/ath11k/pci_cmn.c | 720 +++++++++++++++++ drivers/net/wireless/ath/ath11k/pci_cmn.h | 47 ++ drivers/net/wireless/ath/ath11k/qmi.c | 215 ++++- drivers/net/wireless/ath/ath11k/qmi.h | 26 +- drivers/net/wireless/ath/ath11k/wmi.c | 13 +- 19 files changed, 2007 insertions(+), 992 deletions(-) create mode 100644 drivers/net/wireless/ath/ath11k/pci_cmn.c create mode 100644 drivers/net/wireless/ath/ath11k/pci_cmn.h -- 2.7.4
