Hello, This patch series introduces Bluetooth support for IPQ5018.
Bluetooth firmware is loaded by the host into a dedicated reserved memory carveout and authenticated by TrustZone. A Secure Channel Manager (SCM) call safely brings the peripheral core out of reset. A shared memory ring buffer topology handles runtime data frame transport between the host APSS and the Bluetooth controller. An outgoing APCS IPC bit and an incoming GIC interrupt handle host/guest signaling. This series has been tested and verified on various IPQ5018 router boards utilizing firmware extracted from GPL distributions, using both mdt and mbn file formats. [ 14.781511] Bluetooth: hci0: QCA Product ID :0x00000016 [ 14.781583] Bluetooth: hci0: QCA SOC Version :0x20180100 [ 14.785926] Bluetooth: hci0: QCA ROM Version :0x00000100 [ 14.791546] Bluetooth: hci0: QCA Patch Version:0x00003ded [ 14.796698] Bluetooth: hci0: QCA controller version 0x01000100 [ 14.802217] Bluetooth: hci0: QCA Downloading qca/mpnv10.bin [ 16.393850] Bluetooth: hci0: QCA Build Info: BTFW.MAPLE.1.0.0-00102-MPL_ROM_PATCHZ-1 Best regards, George Moussalem Signed-off-by: George Moussalem <[email protected]> --- Changes in v2: - removed unused struct member btss_reset from m0_btss struct. - used devm_reset_control_get_exclusive_deasserted to acquire and deassert btss_reset in one call. No need to explicitly assert upon unbind since devres will handle it. - As per Bjorn's comments, collapsed the rproc and BT driver into one which now handles firmware loading and transport. - As per further review comments and above change, squashed the two devicetree bindings into one to represent the Bluetooth controller - Added new SCM call to drive Bluetooth power modes. Based on testing on more router boards, this is required during start/stop sequences to avoid the controller hanging. This is only supported on relatively newer QSEE versions, so the SCM call is checked for availability before use. - Refactored resource lifecycle management in the driver so that IRQ and work queue are managed at the driver level (probe/remove) while FW loading and powering on/off the controller is handled upon hdev open/close. - Consolidated TX send functions for custom IPC and HCI frames into one and solved a potential NULL pointer dereference issue under TX pressure. - Replace code to load and initialize firmware metadate by existing qcom_mdt_pas_init function. - Solved an off byone calculation error in the RX parser. - Added entry to MAINTAINERS file - Link to v1: https://lore.kernel.org/r/[email protected] --- George Moussalem (6): dt-bindings: net: bluetooth: Document Qualcomm IPQ5018 Bluetooth controller Bluetooth: btqca: Add IPQ5018 support firmware: qcom: scm: Add support for setting Bluetooth power modes Bluetooth: Introduce Qualcomm IPQ5018 IPC based HCI driver arm64: dts: qcom: ipq5018: add nodes required for Bluetooth support MAINTAINERS: Add entry for Qualcomm IPQ5018 Bluetooth driver .../bindings/net/bluetooth/qcom,ipq5018-bt.yaml | 86 ++ MAINTAINERS | 7 + arch/arm64/boot/dts/qcom/ipq5018.dtsi | 25 +- drivers/bluetooth/Kconfig | 11 + drivers/bluetooth/Makefile | 1 + drivers/bluetooth/btqca.c | 16 + drivers/bluetooth/btqca.h | 3 + drivers/bluetooth/btqcomipc.c | 1052 ++++++++++++++++++++ drivers/firmware/qcom/qcom_scm.c | 49 + drivers/firmware/qcom/qcom_scm.h | 1 + include/linux/firmware/qcom/qcom_scm.h | 1 + 11 files changed, 1251 insertions(+), 1 deletion(-) --- base-commit: 4d1ab324fcb7d20df5a071edb0304461846fdc12 change-id: 20260625-ipq5018-bluetooth-06ff66c9d753 prerequisite-message-id: <[email protected]> prerequisite-patch-id: 6ce8686c1683f468d86b4502f5ec9d19c392a382 prerequisite-patch-id: e362f7fcbacff716b7ef720e6780786a7d88c013 prerequisite-patch-id: 9168930e40551e842c8171d5433a6f39ad4b78a4 prerequisite-patch-id: 64fecfbd1e085d7d2ab0ae23295ca34ec8e14c5e prerequisite-patch-id: 566804aaa690ee9aa285d0fd75fd16d94fbadebf prerequisite-patch-id: dc18bec338f54b3051f4523f9d1d3c0566a20ccd prerequisite-patch-id: b6b3eb46429936ab49423d295433daf47981db0f prerequisite-patch-id: 75caa99e3bbcdf41b6462b9f5f703bea1d4a65fa prerequisite-patch-id: 35e9968f482f78ca233eb0306d9c5fdbff093175 Best regards, -- George Moussalem <[email protected]>
