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From:   Stefan Wahren <wahrenst@gmx.net>
To:     Marcel Holtmann <marcel@holtmann.org>,
        Johan Hedberg <johan.hedberg@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Eric Anholt <eric@anholt.net>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Ray Jui <rjui@broadcom.com>,
        Scott Branden <sbranden@broadcom.com>
Cc:     Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>,
        bcm-kernel-feedback-list@broadcom.com,
        linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
        linux-bluetooth@vger.kernel.org, Stefan Wahren <wahrenst@gmx.net>
Subject: [PATCH V4 00/10] ARM: Add minimal Raspberry Pi 4 support
Date:   Sun,  6 Oct 2019 17:28:18 +0200
Message-Id: <1570375708-26965-1-git-send-email-wahrenst@gmx.net>
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Sender: linux-bluetooth-owner@vger.kernel.org
Precedence: bulk

This series adds minimal support for the new Raspberry Pi 4, so we are abl=
e
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 preliminar=
y
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 workarou=
nd
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 A=
nholt
- 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/bcm27=
11/rpi_DATA_2711_1p0_preliminary.pdf
[2] - https://www.raspberrypi.org/documentation/hardware/raspberrypi/schem=
atics/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

=2D-
2.7.4