This series adds minimal support for the new Raspberry Pi 4, so we are able to login via debug UART. Patch 1: Bluetooth driver fix Patch 2-3: Fix some DT schema warnings Patch 4-5: Prepare DTS for the new SoC BMC2711 Patch 6-9: Add Raspberry Pi 4 DTS support Patch 10: Update MAINTAINERS Unfortunately the Raspberry Pi Foundation didn't released a peripheral documentation for the new SoC yet. So we only have a preliminary datasheet [1] and reduced schematics [2]. Known issues: Since Linux 5.3-rc1 DMA doesn't work properly on that platform. Nicolas Saenz Julienne investigates on that issue. As a temporary workaround i reverted the following patch to test this series: 79a98672 "dma-mapping: remove dma_max_pfn" 7559d612 "mmc: core: let the dma map ops handle bouncing" Changes in V4: - add Rob's Reviewed-by - enable ZONE_DMA for ARCH_BCM2835 - fix spi reference in bcm2711.dtsi - fix bluetooth section in RPi 4 dts - drop "always-on" for armv8-timer - add necessary Bluetooth driver fix - add arm64 dts link - additional comments to the dts files as requested by Florian Changes in V3: - rebased series - add Reviewed-by - enable ARM_GIC for ARCH_BCM2835 on arm64 too - configure i2c pull-up in bcm2711.dtsi - move i2c2 to bcm2835-common.dtsi - add missing compatibles to DT schema as suggested by Rob - fix DT schema warnings in dtsi files - replace brcm pintrl with generic pinctrl as suggested by Linus - make dma_zone_size depend on CONFIG_ZONE_DMA as suggested by Matthias Changes in V2: - use separate board file for BCM2711 - enable ARM_GIC for ARCH_BCM2835 - add Acked-by and Reviewed-by - fix arm-pmu and timer nodes for BCM2711 reported by Marc Zyngier - enable HDMI at board level - move HDMI and pixelvalve into bcm2835-common.dtsi as suggested by Eric Anholt - fix DWC2 probing warning by setting USB role to peripheral - fix order of node references in bcm2711.dtsi - disable I2C clock stretching quirk for BCM2711 - mark PLLD_PER as critical clock - make PLLH clock unavailable on BCM2711 - fix compile warning in clk-bcm2835 for arm64 Changes since RFC: - change BCM2838 -> BCM2711 as discussed in RFC - update MAINTAINERS accordingly - drop "spi: bcm2835: enable shared interrupt support" from series - squash all pinctrl-bcm2835 changes into one patch - introduce SoC specific clock registration as suggested by Florian - fix watchdog probing for Raspberry Pi 4 - convert brcm,bcm2835.txt to json-schema - move VC4 node to bcm2835-common.dtsi - fallback to legacy pull config for Raspberry Pi 4 - revert unintended change of mailbox in bcm283x.dtsi - add reference for arm64 [1] - https://www.raspberrypi.org/documentation/hardware/raspberrypi/bcm2711/rpi_DATA_2711_1p0_preliminary.pdf [2] - https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/rpi_SCH_4b_4p0_reduced.pdf Stefan Wahren (10): bluetooth: hci_bcm: Fix RTS handling during startup ARM: dts: bcm283x: Remove simple-bus from fixed clocks ARM: dts: bcm283x: Remove brcm,bcm2835-pl011 compatible ARM: dts: bcm283x: Move BCM2835/6/7 specific to bcm2835-common.dtsi dt-bindings: arm: Convert BCM2835 board/soc bindings to json-schema dt-bindings: arm: bcm2835: Add Raspberry Pi 4 to DT schema ARM: bcm: Add support for BCM2711 SoC ARM: dts: Add minimal Raspberry Pi 4 support arm64: dts: broadcom: Add reference to RPi 4 B MAINTAINERS: Add BCM2711 to BCM2835 ARCH .../devicetree/bindings/arm/bcm/bcm2835.yaml | 54 ++ .../devicetree/bindings/arm/bcm/brcm,bcm2835.txt | 67 -- MAINTAINERS | 3 +- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 123 +++ arch/arm/boot/dts/bcm2711.dtsi | 844 +++++++++++++++++++++ arch/arm/boot/dts/bcm2835-common.dtsi | 194 +++++ arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 - arch/arm/boot/dts/bcm2835.dtsi | 1 + arch/arm/boot/dts/bcm2836.dtsi | 1 + arch/arm/boot/dts/bcm2837.dtsi | 1 + arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi | 7 + arch/arm/boot/dts/bcm283x.dtsi | 190 +---- arch/arm/mach-bcm/Kconfig | 4 +- arch/arm/mach-bcm/Makefile | 3 +- arch/arm/mach-bcm/bcm2711.c | 24 + arch/arm64/Kconfig.platforms | 5 +- arch/arm64/boot/dts/broadcom/Makefile | 3 +- arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts | 2 + drivers/bluetooth/hci_bcm.c | 2 + 20 files changed, 1272 insertions(+), 261 deletions(-) create mode 100644 Documentation/devicetree/bindings/arm/bcm/bcm2835.yaml delete mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm2835.txt create mode 100644 arch/arm/boot/dts/bcm2711-rpi-4-b.dts create mode 100644 arch/arm/boot/dts/bcm2711.dtsi create mode 100644 arch/arm/boot/dts/bcm2835-common.dtsi create mode 100644 arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi create mode 100644 arch/arm/mach-bcm/bcm2711.c create mode 100644 arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dts -- 2.7.4
