This series adds minimal support for the new Raspberry Pi 4, so we are able to login via debug UART. Patch 1-2: Prepare platform and DTS for the new SoC BMC2711 Patch 3-6: Enable clock support for BCM2711 Patch 7-8: Add I2C support for BCM2711 Patch 9-12: Add Raspberry Pi 4 DTS support Patch 13: 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 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 (13): ARM: dts: bcm283x: Enable HDMI at board level ARM: dts: bcm283x: Move BCM2835/6/7 specific to bcm2835-common.dtsi dt-bindings: bcm2835-cprman: Add bcm2711 support clk: bcm2835: Introduce SoC specific clock registration clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support clk: bcm2835: Mark PLLD_PER as CRITICAL dt-bindings: i2c: bcm2835: Add brcm,bcm2711 compatible i2c: bcm2835: Avoid clk stretch quirk for BCM2711 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 MAINTAINERS: Add BCM2711 to BCM2835 ARCH .../devicetree/bindings/arm/bcm/bcm2835.yaml | 51 ++ .../devicetree/bindings/arm/bcm/brcm,bcm2835.txt | 67 --- .../bindings/clock/brcm,bcm2835-cprman.txt | 4 +- .../devicetree/bindings/i2c/brcm,bcm2835-i2c.txt | 4 +- MAINTAINERS | 3 +- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 121 ++++ arch/arm/boot/dts/bcm2711.dtsi | 662 +++++++++++++++++++++ arch/arm/boot/dts/bcm2835-common.dtsi | 183 ++++++ arch/arm/boot/dts/bcm2835-rpi-a-plus.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-a.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-b.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-zero-w.dts | 2 + arch/arm/boot/dts/bcm2835-rpi-zero.dts | 2 + arch/arm/boot/dts/bcm2835-rpi.dtsi | 5 - arch/arm/boot/dts/bcm2835.dtsi | 1 + arch/arm/boot/dts/bcm2836-rpi-2-b.dts | 2 + arch/arm/boot/dts/bcm2836.dtsi | 1 + arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts | 2 + arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 2 + arch/arm/boot/dts/bcm2837-rpi-3-b.dts | 2 + arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts | 2 + arch/arm/boot/dts/bcm2837.dtsi | 1 + arch/arm/boot/dts/bcm283x-rpi-usb-peripheral.dtsi | 7 + arch/arm/boot/dts/bcm283x.dtsi | 168 +----- arch/arm/mach-bcm/Kconfig | 3 +- arch/arm/mach-bcm/Makefile | 3 +- arch/arm/mach-bcm/bcm2711.c | 22 + drivers/clk/bcm/clk-bcm2835.c | 133 ++++- drivers/i2c/busses/i2c-bcm2835.c | 16 +- include/dt-bindings/clock/bcm2835.h | 2 + 34 files changed, 1221 insertions(+), 263 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 -- 2.7.4
