[PATCH v2 00/15] Add basic support for Socionext Milbeaut M10V SoC

[PATCH v2 00/15] Add basic support for Socionext Milbeaut M10V SoC

[Sugaya Taichi]

Hi,

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.

Changes since v1:
* Change file names.
* Change #define names.
* Refine cpu-enable-method and bindigs.
* Add documentation for Milbeaut SoCs.
* Add more infomation for timer driver.
* Add sched_clock to timer driver.
* Refine whole of clk driver.
* Add earlycon instead of earlyprintk.
* Refine Device Tree.

Sugaya Taichi (15):
  dt-bindings: sram: milbeaut: Add binding for Milbeaut smp-sram
  dt-bindings: arm: Add SMP enable-method for Milbeaut
  dt-bindings: Add documentation for Milbeaut SoCs
  ARM: milbeaut: Add basic support for Milbeaut m10v SoC
  dt-bindings: timer: Add Milbeaut M10V timer description
  clocksource/drivers/timer-milbeaut: Introduce timer for Milbeaut SoCs
  ndings: clock: milbeaut: add Milbeaut clock description
  clock: milbeaut: Add Milbeaut M10V clock controller
  dt-bindings: serial: Add Milbeaut serial driver description
  serial: Add Milbeaut serial control
  dt-bindings: pinctrl: milbeaut: Add Milbeaut M10V pinctrl description
  pinctrl: milbeaut: Add Milbeaut M10V pinctrl
  ARM: dts: milbeaut: Add device tree set for the Milbeaut M10V board
  ARM: configs: Add Milbeaut M10V defconfig
  MAINTAINERS: Add entry to MAINTAINERS for Milbeaut

 Documentation/devicetree/bindings/arm/cpus.yaml    |   1 +
 Documentation/devicetree/bindings/arm/milbeaut.txt |   6 +
 .../devicetree/bindings/clock/milbeaut-clock.txt   |  49 ++
 .../pinctrl/socionext,milbeaut-pinctrl.txt         |  35 +
 .../devicetree/bindings/serial/milbeaut-uart.txt   |  21 +
 .../devicetree/bindings/sram/milbeaut-smp-sram.txt |  24 +
 .../bindings/timer/socionext,milbeaut-timer.txt    |  17 +
 MAINTAINERS                                        |   9 +
 arch/arm/Kconfig                                   |   2 +
 arch/arm/Makefile                                  |   1 +
 arch/arm/boot/dts/Makefile                         |   1 +
 arch/arm/boot/dts/milbeaut-m10v-evb.dts            |  32 +
 arch/arm/boot/dts/milbeaut-m10v.dtsi               | 131 ++++
 arch/arm/configs/milbeaut_m10v_defconfig           | 366 ++++++++++
 arch/arm/mach-milbeaut/Kconfig                     |  20 +
 arch/arm/mach-milbeaut/Makefile                    |   1 +
 arch/arm/mach-milbeaut/platsmp.c                   | 144 ++++
 drivers/clk/Makefile                               |   1 +
 drivers/clk/clk-milbeaut.c                         | 626 +++++++++++++++++
 drivers/clocksource/Kconfig                        |   9 +
 drivers/clocksource/Makefile                       |   1 +
 drivers/clocksource/timer-milbeaut.c               | 161 +++++
 drivers/pinctrl/Kconfig                            |   9 +
 drivers/pinctrl/Makefile                           |   1 +
 drivers/pinctrl/pinctrl-milbeaut.c                 | 759 +++++++++++++++++++++
 drivers/tty/serial/Kconfig                         |  25 +
 drivers/tty/serial/Makefile                        |   1 +
 drivers/tty/serial/milbeaut_usio.c                 | 621 +++++++++++++++++
 include/uapi/linux/serial_core.h                   |   3 +
 29 files changed, 3077 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/milbeaut.txt
 create mode 100644 Documentation/devicetree/bindings/clock/milbeaut-clock.txt
 create mode 100644 Documentation/devicetree/bindings/pinctrl/socionext,milbeaut-pinctrl.txt
 create mode 100644 Documentation/devicetree/bindings/serial/milbeaut-uart.txt
 create mode 100644 Documentation/devicetree/bindings/sram/milbeaut-smp-sram.txt
 create mode 100644 Documentation/devicetree/bindings/timer/socionext,milbeaut-timer.txt
 create mode 100644 arch/arm/boot/dts/milbeaut-m10v-evb.dts
 create mode 100644 arch/arm/boot/dts/milbeaut-m10v.dtsi
 create mode 100644 arch/arm/configs/milbeaut_m10v_defconfig
 create mode 100644 arch/arm/mach-milbeaut/Kconfig
 create mode 100644 arch/arm/mach-milbeaut/Makefile
 create mode 100644 arch/arm/mach-milbeaut/platsmp.c
 create mode 100644 drivers/clk/clk-milbeaut.c
 create mode 100644 drivers/clocksource/timer-milbeaut.c
 create mode 100644 drivers/pinctrl/pinctrl-milbeaut.c
 create mode 100644 drivers/tty/serial/milbeaut_usio.c

-- 
1.9.1

Re: [PATCH v2 00/15] Add basic support for Socionext Milbeaut M10V SoC

[Arnd Bergmann]

On Fri, Feb 8, 2019 at 1:24 PM Sugaya Taichi
<sugaya.taichi@socionext.com> wrote:
>
> Hi,
>
> 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.

I've looked over the platform once more. Overall, it looks very good, and
I'd still like to merge this for linux-5.1, but we are running out of time
there. If you send the patches to soc@kernel.org quickly, we can try to
still merge them in, but if anything goes wrong, it will have to wait until
we start merging patches for 5.2, directly after 5.1 is out.

I did not look at the device driver patches (clk, clocksource, pinctrl, serial)
in much detail. If you have an Ack from the maintainers, feel free to
include them in the series, otherwise let's merge the rest now and then
you can send the updated patches for inclusion through the subsystem
trees in 5.2.

I have sent a few comments. The only one that is really important
here is the missing platform check in the suspend options. Please
try to address most of the other commentsm, either by changing the
code, or by explaining why your version is correct.



     Arnd

Re: [PATCH v2 00/15] Add basic support for Socionext Milbeaut M10V SoC

[Daniel Lezcano]

On 18/02/2019 13:20, Arnd Bergmann wrote:
> On Fri, Feb 8, 2019 at 1:24 PM Sugaya Taichi
> <sugaya.taichi@socionext.com> wrote:
>>
>> Hi,
>>
>> 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.
> 
> I've looked over the platform once more. Overall, it looks very good, and
> I'd still like to merge this for linux-5.1, but we are running out of time
> there. If you send the patches to soc@kernel.org quickly, we can try to
> still merge them in, but if anything goes wrong, it will have to wait until
> we start merging patches for 5.2, directly after 5.1 is out.
> 
> I did not look at the device driver patches (clk, clocksource, pinctrl, serial)
> in much detail. If you have an Ack from the maintainers, feel free to
> include them in the series, otherwise let's merge the rest now and then
> you can send the updated patches for inclusion through the subsystem
> trees in 5.2.

I'm not in copy of the clocksource patch but I acked it for the initial
post.

> I have sent a few comments. The only one that is really important
> here is the missing platform check in the suspend options. Please
> try to address most of the other commentsm, either by changing the
> code, or by explaining why your version is correct.
> 
> 
> 
>      Arnd
> 


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Re: [PATCH v2 00/15] Add basic support for Socionext Milbeaut M10V SoC

[Sugaya, Taichi]

Hi,

Thank you for your comments.

On 2019/02/18 21:20, Arnd Bergmann wrote:
> On Fri, Feb 8, 2019 at 1:24 PM Sugaya Taichi
> <sugaya.taichi@socionext.com> wrote:
>>
>> Hi,
>>
>> 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.
> 
> I've looked over the platform once more. Overall, it looks very good, and
> I'd still like to merge this for linux-5.1, but we are running out of time
> there. If you send the patches to soc@kernel.org quickly, we can try to
> still merge them in, but if anything goes wrong, it will have to wait until
> we start merging patches for 5.2, directly after 5.1 is out.
> 

I see.
I do my best to make it.

> I did not look at the device driver patches (clk, clocksource, pinctrl, serial)
> in much detail. If you have an Ack from the maintainers, feel free to
> include them in the series, otherwise let's merge the rest now and then
> you can send the updated patches for inclusion through the subsystem
> trees in 5.2.
> 

OK, I'll add the patches with "Acked" or "Reviewed" tag.

> I have sent a few comments. The only one that is really important
> here is the missing platform check in the suspend options. Please
> try to address most of the other commentsm, either by changing the
> code, or by explaining why your version is correct.
> 

Okay, try to address them.
I send the next version as soon as possible.

Thanks.
Sugaya Taichi

> 
> 
>       Arnd
>