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Commit c889e2a0 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

Merge branch 'milbeaut/newsoc' into arm/newsoc 

Sugaya Taichi <sugaya.taichi@socionext.com> explains:

Here is the series of patches the initial support for SC2000(M10V) of
Milbeaut SoCs. "M10V" is the internal name of SC2000, so commonly used in
source code.

SC2000 is a SoC of the Milbeaut series. equipped with a DSP optimized for
computer vision. It also features advanced functionalities such as 360-degree,
real-time spherical stitching with multi cameras, image stabilization for
without mechanical gimbals, and rolling shutter correction. More detail is
below:
https://www.socionext.com/en/products/assp/milbeaut/SC2000.html

Specifications for developers are below:
 - Quad-core 32bit Cortex-A7 on ARMv7-A architecture
 - NEON support
 - DSP
 - GPU
 - MAX 3GB DDR3
 - Cortex-M0 for power control
 - NAND Flash Interface
 - SD UHS-I
 - SD UHS-II
 - SDIO
 - USB2.0 HOST / Device
 - USB3.0 HOST / Device
 - PCI express Gen2
 - Ethernet Engine
 - I2C
 - UART
 - SPI
 - PWM

Support is quite minimal for now, since it only includes timer, clock,
pictrl and serial controller drivers, so we can only boot to userspace
through initramfs. Support for the other peripherals  will come eventually.

* milbeaut/newsoc:
  ARM: multi_v7_defconfig: add ARCH_MILBEAUT and ARCH_MILBEAUT_M10V
  ARM: configs: Add Milbeaut M10V defconfig
  ARM: dts: milbeaut: Add device tree set for the Milbeaut M10V board
  clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs
  dt-bindings: timer: Add Milbeaut M10V timer description
  ARM: milbeaut: Add basic support for Milbeaut m10v SoC
  dt-bindings: Add documentation for Milbeaut SoCs
  dt-bindings: arm: Add SMP enable-method for Milbeaut
  dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram

Link: https://lore.kernel.org/linux-arm-kernel/1551243056-10521-1-git-send-email-sugaya.taichi@socionext.com/


Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parents ee036df9 27812045

Documentation/devicetree/bindings/arm/cpus.yaml

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Original line number Diff line number Diff line
@@ -228,6 +228,7 @@ patternProperties: 
                - renesas,r9a06g032-smp

                - rockchip,rk3036-smp

                - rockchip,rk3066-smp

		- socionext,milbeaut-m10v-smp

                - ste,dbx500-smp



      cpu-release-addr:

Documentation/devicetree/bindings/arm/socionext/milbeaut.yaml

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# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/arm/milbeaut.yaml#

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



title: Milbeaut platforms device tree bindings



maintainers:

  - Taichi Sugaya <sugaya.taichi@socionext.com>

  - Takao Orito <orito.takao@socionext.com>



properties:

  $nodename:

    const: '/'

  compatible:

    oneOf:

      - items:

          - enum:

              - socionext,milbeaut-m10v-evb

          - const: socionext,sc2000a

...

Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt

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Milbeaut SRAM for smp bringup



Milbeaut SoCs use a part of the sram for the bringup of the secondary cores.

Once they get powered up in the bootloader, they stay at the specific part

of the sram.

Therefore the part needs to be added as the sub-node of mmio-sram.



Required sub-node properties:

- compatible : should be "socionext,milbeaut-smp-sram"



Example:



        sram: sram@0 {

                compatible = "mmio-sram";

                reg = <0x0 0x10000>;

                #address-cells = <1>;

                #size-cells = <1>;

                ranges = <0 0x0 0x10000>;



                smp-sram@f100 {

                        compatible = "socionext,milbeaut-smp-sram";

                        reg = <0xf100 0x20>;

                };

        };

Documentation/devicetree/bindings/timer/socionext,milbeaut-timer.txt

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Milbeaut SoCs Timer Controller



Required properties:



- compatible : should be "socionext,milbeaut-timer".

- reg : Specifies base physical address and size of the registers.

- interrupts : The interrupt of the first timer.

- clocks: phandle to the input clk.



Example:



timer {

	compatible = "socionext,milbeaut-timer";

	reg = <0x1e000050 0x20>

	interrupts = <0 91 4>;

	clocks = <&clk 4>;

};

arch/arm/Kconfig

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@@ -750,6 +750,8 @@ source "arch/arm/mach-mediatek/Kconfig" 


source "arch/arm/mach-meson/Kconfig"



source "arch/arm/mach-milbeaut/Kconfig"



source "arch/arm/mach-mmp/Kconfig"



source "arch/arm/mach-moxart/Kconfig"