[PATCH RFC 00/18] ARM: Add minimal Raspberry Pi 4 support

From: Stefan Wahren <wahrenst@gmx.net>
To: Eric Anholt <eric@anholt.net>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Linus Walleij <linus.walleij@linaro.org>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Mark Brown <broonie@kernel.org>
Cc: bcm-kernel-feedback-list@broadcom.com,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	Stefan Wahren <wahrenst@gmx.net>
Subject: [PATCH RFC 00/18] ARM: Add minimal Raspberry Pi 4 support
Date: Wed, 17 Jul 2019 21:50:08 +0200	[thread overview]
Message-ID: <1563393026-17118-1-git-send-email-wahrenst@gmx.net> (raw)

This series adds minimal support for the new Raspberry Pi 4, so we are able
to login via debug UART.

Patch 1-5:   Prepare platform and DTS for the new SoC BMC2838
Patch 6-9:   Enable support for emmc2 on BCM2838
Patch 10-14: Enable pinctrl for BCM2838
Patch 15:    Enable SPI support for BCM2838
Patch 16-18: Add Raspberry Pi 4 DTS support

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].

This series is marked as RFC because some parts (e.g. pinctrl) are still
work in progress.

[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

Discussible things:
- SoC compatible BCM2711 (as on the SoC label) vs BCM2838 (existing naming scheme)
- ARCH membership ARCH_BCM2835 vs ARCH_BCMSTB
...

Al Cooper (1):
  pinctrl: bcm2835: bcm7211: Add support for 7211 pull-up functionality

Martin Sperl (1):
  spi: bcm2835: enable shared interrupt support

Phil Elwell (2):
  ARM: bcm2835: DMA can only address 1GB
  ARM: bcm2835: Add bcm2838 compatible string

Stefan Wahren (14):
  ARM: bcm283x: Reduce register ranges for UART, SPI and I2C
  ARM: dts: bcm283x: Move BCM2835/6/7 specific to bcm2835-common.dtsi
  ARM: dts: bcm283x: Define MMC interfaces at board level
  ARM: dts: bcm283x: Define memory at board level
  dt-bindings: bcm2835-cprman: Add bcm2838 support
  clk: bcm2835: Add BCM2838_CLOCK_EMMC2 support
  dt-bindings: sdhci-iproc: Add brcm,bcm2838-emmc2
  mmc: sdhci-iproc: Add support for emmc2 of the BCM2838
  pinctrl: bcm2835: Fix BCM7211 pinconf handling
  dt-bindings: pinctrl: bcm2835: Add brcm,bcm2838 compatible
  pinctrl: bcm2835: Add BCM2838 support
  HACK: pinctrl: bcm2835: Implement legacy pull for BCM7211
  dt-bindings: bcm: Add Raspberry Pi 4 B
  ARM: dts: Add minimal Raspberry Pi 4 support

 .../devicetree/bindings/arm/bcm/brcm,bcm2835.txt   |   4 +
 .../bindings/clock/brcm,bcm2835-cprman.txt         |   4 +-
 .../devicetree/bindings/mmc/brcm,sdhci-iproc.txt   |   4 +-
 .../bindings/pinctrl/brcm,bcm2835-gpio.txt         |   1 +
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/bcm2835-common.dtsi              | 173 ++++++
 arch/arm/boot/dts/bcm2835-rpi-a-plus.dts           |  12 +
 arch/arm/boot/dts/bcm2835-rpi-a.dts                |  12 +
 arch/arm/boot/dts/bcm2835-rpi-b-plus.dts           |  12 +
 arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts           |  12 +
 arch/arm/boot/dts/bcm2835-rpi-b.dts                |  12 +
 arch/arm/boot/dts/bcm2835-rpi-cm1-io1.dts          |   7 +
 arch/arm/boot/dts/bcm2835-rpi-cm1.dtsi             |   5 +
 arch/arm/boot/dts/bcm2835-rpi-zero-w.dts           |  12 +
 arch/arm/boot/dts/bcm2835-rpi-zero.dts             |  12 +
 arch/arm/boot/dts/bcm2835-rpi.dtsi                 |  18 -
 arch/arm/boot/dts/bcm2835.dtsi                     |   1 +
 arch/arm/boot/dts/bcm2836-rpi-2-b.dts              |   8 +
 arch/arm/boot/dts/bcm2836.dtsi                     |   1 +
 arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts         |   1 +
 arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts         |   1 +
 arch/arm/boot/dts/bcm2837-rpi-3-b.dts              |   1 +
 arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts          |   7 +
 arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi             |   1 +
 arch/arm/boot/dts/bcm2837.dtsi                     |   1 +
 arch/arm/boot/dts/bcm2838-rpi-4-b.dts              | 120 ++++
 arch/arm/boot/dts/bcm2838.dtsi                     | 657 +++++++++++++++++++++
 arch/arm/boot/dts/bcm283x.dtsi                     | 166 +-----
 arch/arm/mach-bcm/board_bcm2835.c                  |   2 +
 drivers/clk/bcm/clk-bcm2835.c                      |  33 +-
 drivers/mmc/host/sdhci-iproc.c                     |   9 +
 drivers/pinctrl/bcm/pinctrl-bcm2835.c              |  97 ++-
 drivers/spi/spi-bcm2835.c                          |   8 +-
 include/dt-bindings/clock/bcm2835.h                |   2 +
 34 files changed, 1232 insertions(+), 185 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm2835-common.dtsi
 create mode 100644 arch/arm/boot/dts/bcm2838-rpi-4-b.dts
 create mode 100644 arch/arm/boot/dts/bcm2838.dtsi

--
2.7.4

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