[PATCH 0/6] Add support for BCM2712 SD card controller

Mon Apr 15 11:47:35 PDT 2024

On Sun, 14 Apr 2024 00:14:22 +0200, Andrea della Porta wrote:
> Hi,
> 
> This patchset adds support for the SDHCI controller on Broadcom BCM2712
> SoC in order to make it possible to boot (particularly) Raspberry Pi 5
> from SD card. This work is heavily based on downstream contributions.
> 
> Patch #1 and 2: introduce the dt binding definitions for, respectively,
> the new pin cfg/mux controller and the SD host controller as a preparatory
> step for the upcoming dts.
> 
> Patch #3: add a somewhat reasonable (*almost* bare-minimum) dts to be used
> to boot Rpi5 boards. Since till now there was no support at all for any
> 2712 based chipset, both the SoC and board dts plus definitions for the
> new Pin and SD host controller have been added.
> 
> Patch #4: the driver supporting the pin controller. Based on [1] and
> successive fix commits.
> 
> Patch #5: add SDHCI support. Based on [2] and the next 2 fix commits.
> Drop the SD Express implementation for now, that will be added by patch
> #6.
> 
> Patch #6: this patch offers SD Express support and can be considered totally
> optional. The callback plumbing is slightly different w.r.t. the downstream
> approach (see [3]), as explained in the patch comment. Not sure what is the best,
> any comment is highly appreciated.
> 
> Tested succesfully on Raspberry Pi 5 using an SDxC card as the boot device.
> 
> Still untested:
> - SD Express due to the lack of an Express capable card.
>   Also, it will need PCIe support first.
> - card detection pin, since the sd was the booting and root fs device.
> 
> Many thanks,
> Andrea
> 
> Links:
> [1] - https://github.com/raspberrypi/linux/commit/d9b655314a826724538867bf9b6c229d04c25d84
> [2] - https://github.com/raspberrypi/linux/commit/e3aa070496e840e72a4dc384718690ea4125fa6a
> [3] - https://github.com/raspberrypi/linux/commit/eb1df34db2a9a5b752eba40ee298c4ae87e26e87
> 
> Andrea della Porta (6):
>   dt-bindings: pinctrl: Add support for BCM2712 pin controller
>   dt-bindings: mmc: Add support for BCM2712 SD host controller
>   arm64: dts: broadcom: Add support for BCM2712
>   pinctrl: bcm: Add pinconf/pinmux controller driver for BCM2712
>   mmc: sdhci-brcmstb: Add BCM2712 support
>   mmc: sdhci-brcmstb: Add BCM2712 SD Express support
> 
>  .../bindings/mmc/brcm,sdhci-brcmstb.yaml      |   51 +-
>  .../pinctrl/brcm,bcm2712-pinctrl.yaml         |   99 ++
>  arch/arm64/boot/dts/broadcom/Makefile         |    1 +
>  .../boot/dts/broadcom/bcm2712-rpi-5-b.dts     |  313 +++++
>  arch/arm64/boot/dts/broadcom/bcm2712-rpi.dtsi |   81 ++
>  arch/arm64/boot/dts/broadcom/bcm2712.dtsi     |  841 +++++++++++
>  drivers/mmc/host/Kconfig                      |    1 +
>  drivers/mmc/host/sdhci-brcmstb.c              |  275 ++++
>  drivers/pinctrl/bcm/Kconfig                   |    9 +
>  drivers/pinctrl/bcm/Makefile                  |    1 +
>  drivers/pinctrl/bcm/pinctrl-bcm2712.c         | 1247 +++++++++++++++++
>  11 files changed, 2918 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,bcm2712-pinctrl.yaml
>  create mode 100644 arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts
>  create mode 100644 arch/arm64/boot/dts/broadcom/bcm2712-rpi.dtsi
>  create mode 100644 arch/arm64/boot/dts/broadcom/bcm2712.dtsi
>  create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm2712.c
> 
> --
> 2.35.3
> 
> 
> 

My bot found new DTB warnings on the .dts files added or changed in this
series.

Some warnings may be from an existing SoC .dtsi. Or perhaps the warnings
are fixed by another series. Ultimately, it is up to the platform
maintainer whether these warnings are acceptable or not. No need to reply
unless the platform maintainer has comments.

If you already ran DT checks and didn't see these error(s), then
make sure dt-schema is up to date:

  pip3 install dtschema --upgrade

New warnings running 'make CHECK_DTBS=y broadcom/bcm2712-rpi-5-b.dtb' for cover.1713036964.git.andrea.porta at suse.com:

arch/arm64/boot/dts/broadcom/bcm2712.dtsi:554.26-565.5: Warning (interrupt_provider): /soc/gpio at 7d517c00: '#interrupt-cells' found, but node is not an interrupt provider
  also defined at arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts:201.10-206.3
  also defined at arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts:259.10-288.3
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider'
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /: failed to match any schema with compatible: ['raspberrypi,5-model-b', 'brcm,bcm2712']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /: failed to match any schema with compatible: ['raspberrypi,5-model-b', 'brcm,bcm2712']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: thermal-zones: cpu-thermal:trips:phandle: [[43]] is not of type 'object'
	from schema $id: http://devicetree.org/schemas/thermal/thermal-zones.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: soc: firmware: {'compatible': ['raspberrypi,bcm2835-firmware', 'simple-mfd'], '#address-cells': [[1]], '#size-cells': [[1]], 'mboxes': [[15]], 'dma-ranges': True, 'phandle': [[16]], 'clocks': {'compatible': ['raspberrypi,firmware-clocks'], '#clock-cells': [[1]], 'phandle': [[95]]}, 'reset': {'compatible': ['raspberrypi,firmware-reset'], '#reset-cells': [[1]], 'phandle': [[96]]}} should not be valid under {'type': 'object'}
	from schema $id: http://devicetree.org/schemas/simple-bus.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: soc: power: {'compatible': ['raspberrypi,bcm2835-power'], 'firmware': [[16]], '#power-domain-cells': [[1]], 'phandle': [[97]]} should not be valid under {'type': 'object'}
	from schema $id: http://devicetree.org/schemas/simple-bus.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: soc: fixedregulator_3v3: {'compatible': ['regulator-fixed'], 'regulator-always-on': True, 'regulator-max-microvolt': [[3300000]], 'regulator-min-microvolt': [[3300000]], 'regulator-name': ['3v3'], 'phandle': [[98]]} should not be valid under {'type': 'object'}
	from schema $id: http://devicetree.org/schemas/simple-bus.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: soc: fixedregulator_5v0: {'compatible': ['regulator-fixed'], 'regulator-always-on': True, 'regulator-max-microvolt': [[5000000]], 'regulator-min-microvolt': [[5000000]], 'regulator-name': ['5v0'], 'phandle': [[99]]} should not be valid under {'type': 'object'}
	from schema $id: http://devicetree.org/schemas/simple-bus.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/timer at 7c003000: failed to match any schema with compatible: ['brcm,bcm2835-system-timer']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/local_intc at 7cd00000: failed to match any schema with compatible: ['brcm,bcm2836-l1-intc']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/i2s at 7d003000: failed to match any schema with compatible: ['brcm,bcm2835-i2s']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/spi at 7d004000: failed to match any schema with compatible: ['brcm,bcm2835-spi']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/spi at 7d004000/spidev at 0: failed to match any schema with compatible: ['spidev']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/spi at 7d004600: failed to match any schema with compatible: ['brcm,bcm2835-spi']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/spi at 7d004800: failed to match any schema with compatible: ['brcm,bcm2835-spi']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/spi at 7d004a00: failed to match any schema with compatible: ['brcm,bcm2835-spi']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/spi at 7d004c00: failed to match any schema with compatible: ['brcm,bcm2835-spi']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pwm at 7d00c000: 'assigned-clocks' is a dependency of 'assigned-clock-rates'
	from schema $id: http://devicetree.org/schemas/clock/clock.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pwm at 7d00c800: 'assigned-clocks' is a dependency of 'assigned-clock-rates'
	from schema $id: http://devicetree.org/schemas/clock/clock.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/cprman at 7d202000: failed to match any schema with compatible: ['brcm,bcm2711-cprman']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: intc at 7d503000: $nodename:0: 'intc at 7d503000' does not match '^interrupt-controller(@[0-9a-f,]+)*$'
	from schema $id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: intc at 7d508380: $nodename:0: 'intc at 7d508380' does not match '^interrupt-controller(@[0-9a-f,]+)*$'
	from schema $id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: intc at 7d508400: $nodename:0: 'intc at 7d508400' does not match '^interrupt-controller(@[0-9a-f,]+)*$'
	from schema $id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: gpio at 7d508500: compatible:0: 'brcm,brcmstb-gpio' is not one of ['brcm,bcm7445-gpio']
	from schema $id: http://devicetree.org/schemas/gpio/brcm,brcmstb-gpio.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: gpio at 7d508500: compatible: ['brcm,brcmstb-gpio'] is too short
	from schema $id: http://devicetree.org/schemas/gpio/brcm,brcmstb-gpio.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: gpio at 7d508500: 'brcm,gpio-direct', 'gpio-line-names' do not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/gpio/brcm,brcmstb-gpio.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: intc at 7d517000: $nodename:0: 'intc at 7d517000' does not match '^interrupt-controller(@[0-9a-f,]+)*$'
	from schema $id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pwm at 7d517a80: #pwm-cells:0:0: 2 was expected
	from schema $id: http://devicetree.org/schemas/pwm/brcm,bcm7038-pwm.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: intc at 7d517ac0: $nodename:0: 'intc at 7d517ac0' does not match '^interrupt-controller(@[0-9a-f,]+)*$'
	from schema $id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: intc at 7d517b00: $nodename:0: 'intc at 7d517b00' does not match '^interrupt-controller(@[0-9a-f,]+)*$'
	from schema $id: http://devicetree.org/schemas/interrupt-controller/brcm,l2-intc.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: gpio at 7d517c00: compatible:0: 'brcm,brcmstb-gpio' is not one of ['brcm,bcm7445-gpio']
	from schema $id: http://devicetree.org/schemas/gpio/brcm,brcmstb-gpio.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: gpio at 7d517c00: compatible: ['brcm,brcmstb-gpio'] is too short
	from schema $id: http://devicetree.org/schemas/gpio/brcm,brcmstb-gpio.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: gpio at 7d517c00: 'brcm,gpio-direct', 'gpio-line-names' do not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/gpio/brcm,brcmstb-gpio.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/avs-monitor at 7d542000: failed to match any schema with compatible: ['brcm,bcm2711-avs-monitor', 'syscon', 'simple-mfd']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: firmware: '#address-cells', '#size-cells', 'dma-ranges' do not match any of the regexes: 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/arm/bcm/raspberrypi,bcm2835-firmware.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: /soc/power: failed to match any schema with compatible: ['raspberrypi,bcm2835-power']
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: l3-cache: 'cache-unified' is a dependency of 'cache-size'
	from schema $id: http://devicetree.org/schemas/cache.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: l3-cache: 'cache-unified' is a dependency of 'cache-sets'
	from schema $id: http://devicetree.org/schemas/cache.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: l3-cache: 'cache-unified' is a dependency of 'cache-line-size'
	from schema $id: http://devicetree.org/schemas/cache.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: l3-cache: 'cache-unified' is a required property
	from schema $id: http://devicetree.org/schemas/cache.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: l3-cache: Unevaluated properties are not allowed ('cache-level', 'cache-line-size', 'cache-sets', 'cache-size' were unexpected)
	from schema $id: http://devicetree.org/schemas/cache.yaml#
arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dtb: pwr_button: 'pwr' does not match any of the regexes: '^(button|event|key|switch|(button|event|key|switch)-[a-z0-9-]+|[a-z0-9-]+-(button|event|key|switch))$', 'pinctrl-[0-9]+'
	from schema $id: http://devicetree.org/schemas/input/gpio-keys.yaml#