Commit fba2689e authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge branch 'remove-h8300' of git://git.infradead.org/users/hch/misc into asm-generic 

* 'remove-h8300' of git://git.infradead.org/users/hch/misc

:
  remove the h8300 architecture

This is clearly the least actively maintained architecture we have at
the moment, and probably the least useful. It is now the only one that
does not support MMUs at all, and most of the boards only support 4MB
of RAM, out of which the defconfig kernel needs more than half just
for .text/.data.

Guenter Roeck did the original patch to remove the architecture in 2013
after it had already been obsolete for a while, and Yoshinori Sato brought
it back in a much more modern form in 2015. Looking at the git history
since the reinstantiation, it's clear that almost all commits in the tree
are build fixes or cross-architecture cleanups:

$ git log --no-merges --format=%an v4.5.. arch/h8300/  | sort | uniq
-c | sort -rn | head -n 12
     25 Masahiro Yamada
     18 Christoph Hellwig
     14 Mike Rapoport
      9 Arnd Bergmann
      8 Mark Rutland
      7 Peter Zijlstra
      6 Kees Cook
      6 Ingo Molnar
      6 Al Viro
      5 Randy Dunlap
      4 Yury Norov

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parents 31231092 1c4b5ecb

Documentation/devicetree/bindings/clock/renesas,h8300-div-clock.txt

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* Renesas H8/300 divider clock



Required Properties:



  - compatible: Must be "renesas,h8300-div-clock"



  - clocks: Reference to the parent clocks ("extal1" and "extal2")



  - #clock-cells: Must be 1



  - reg: Base address and length of the divide rate selector



  - renesas,width: bit width of selector



Example

-------



		cclk: cclk {

			compatible = "renesas,h8300-div-clock";

			clocks = <&xclk>;

			#clock-cells = <0>;

			reg = <0xfee01b 2>;

			renesas,width = <2>;

		};

Documentation/devicetree/bindings/h8300/cpu.txt

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* H8/300 CPU bindings



Required properties:



- compatible: Compatible property value should be "renesas,h8300".

- clock-frequency: Contains the clock frequency for CPU, in Hz.



Example:



		cpu@0 {

			compatible = "renesas,h8300";

			clock-frequency = <20000000>;

		};

Documentation/devicetree/bindings/interrupt-controller/renesas,h8300h-intc.txt

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* H8/300H Interrupt controller



Required properties:



- compatible: has to be "renesas,h8300h-intc", "renesas,h8300-intc" as fallback.

- #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in

  interrupts.txt in this directory

- regs: Base address of interrupt controller registers.



Optional properties:



- any properties, listed in interrupts.txt, and any standard resource allocation

  properties



Example:



	h8intc: interrupt-controller@fee012 {

		compatible = "renesas,h8300h-intc", "renesas,h8300-intc";

		#interrupt-cells = <2>;

		interrupt-controller;

		reg = <0xfee012 7>;

	};

Documentation/devicetree/bindings/interrupt-controller/renesas,h8s-intc.txt

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* H8S Interrupt controller



Required properties:



- compatible: has to be "renesas,h8s-intc", "renesas,h8300-intc" as fallback.

- #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in

  interrupts.txt in this directory

- regs: Base address of interrupt controller registers.



Optional properties:



- any properties, listed in interrupts.txt, and any standard resource allocation

  properties



Example:



	h8intc: interrupt-controller@fffe00 {

		compatible = "renesas,h8s-intc", "renesas,h8300-intc";

		#interrupt-cells = <2>;

		interrupt-controller;

		reg = <0xfffe00 24>;

	};

Documentation/devicetree/bindings/memory-controllers/renesas,h8300-bsc.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/memory-controllers/renesas,h8300-bsc.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: H8/300 bus controller



maintainers:

  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

  - Yoshinori Sato <ysato@users.sourceforge.jp>



properties:

  compatible:

    items:

      - enum:

          - renesas,h8300h-bsc

          - renesas,h8s-bsc

      - const: renesas,h8300-bsc



  reg:

    maxItems: 1



required:

  - compatible

  - reg



additionalProperties: false



examples:

  - |

    memory-controller@fee01e {

        compatible = "renesas,h8300h-bsc", "renesas,h8300-bsc";

        reg = <0xfee01e 8>;

    };