[v1,00/16] Basic StarFive JH7100 RISC-V SoC support

Message

Emil Renner Berthing Oct. 12, 2021, 1:40 p.m. UTC

This series adds support for the StarFive JH7100 RISC-V SoC. The SoC has
many devices that needs non-coherent dma operations to work which isn't
upstream yet[1], so this just adds basic support to boot up, get a
serial console, blink an LED and reboot itself. Unlike the Allwinner D1
this chip doesn't use any extra pagetable bits, but instead the DDR RAM
appears twice in the memory map, with and without the cache.

The JH7100 is a test chip for the upcoming JH7110 and about 300 BeagleV
Starlight Beta boards were sent out with them as part of a now cancelled
BeagleBoard.org project. However StarFive has produced more of the
JH7100s and more boards will be available[2] to buy. Hopefully before
the end of the year.

This series is also available at
https://github.com/esmil/linux/commits/starlight-minimal
..but a more complete kernel including non-coherent dma operations can
be found at
https://github.com/starfive-tech/linux/tree/starlight

/Emil

[1]: https://lore.kernel.org/linux-riscv/[e-mail]/
[2]: https://www.linkedin.com/pulse/starfive-release-open-source-single-board-platform-q3-2021-starfive/

Emil Renner Berthing (12):
  RISC-V: Add StarFive SoC Kconfig option
  dt-bindings: timer: Add StarFive JH7100 clint
  dt-bindings: interrupt-controller: Add StarFive JH7100 plic
  dt-bindings: reset: Add Starfive JH7100 reset bindings
  reset: starfive-jh7100: Add StarFive JH7100 reset driver
  dt-bindings: pinctrl: Add StarFive pinctrl definitions
  dt-bindings: pinctrl: Add StarFive JH7100 bindings
  pinctrl: starfive: Add pinctrl driver for StarFive SoCs
  dt-bindings: serial: snps-dw-apb-uart: Add JH7100 uarts
  serial: 8250_dw: Add skip_clk_set_rate quirk
  RISC-V: Add initial StarFive JH7100 device tree
  RISC-V: Add BeagleV Starlight Beta device tree

Geert Uytterhoeven (4):
  dt-bindings: clock: starfive: Add JH7100 clock definitions
  dt-bindings: clock: starfive: Add JH7100 bindings
  clk: starfive: Add JH7100 clock generator driver
  dt-bindings: reset: Add StarFive JH7100 reset definitions

 .../clock/starfive,jh7100-clkgen.yaml         |   56 +
 .../sifive,plic-1.0.0.yaml                    |    1 +
 .../pinctrl/starfive,jh7100-pinctrl.yaml      |  274 ++++
 .../bindings/reset/starfive,jh7100-reset.yaml |   38 +
 .../bindings/serial/snps-dw-apb-uart.yaml     |    5 +
 .../bindings/timer/sifive,clint.yaml          |    1 +
 MAINTAINERS                                   |   22 +
 arch/riscv/Kconfig.socs                       |    8 +
 arch/riscv/boot/dts/Makefile                  |    1 +
 arch/riscv/boot/dts/starfive/Makefile         |    2 +
 .../dts/starfive/jh7100-beaglev-starlight.dts |  162 ++
 arch/riscv/boot/dts/starfive/jh7100.dtsi      |  228 +++
 drivers/clk/Kconfig                           |    1 +
 drivers/clk/Makefile                          |    1 +
 drivers/clk/starfive/Kconfig                  |   10 +
 drivers/clk/starfive/Makefile                 |    3 +
 drivers/clk/starfive/clk-starfive-jh7100.c    |  769 +++++++++
 drivers/pinctrl/Kconfig                       |   17 +
 drivers/pinctrl/Makefile                      |    1 +
 drivers/pinctrl/pinctrl-starfive.c            | 1439 +++++++++++++++++
 drivers/reset/Kconfig                         |    8 +
 drivers/reset/Makefile                        |    1 +
 drivers/reset/reset-starfive-jh7100.c         |  164 ++
 drivers/tty/serial/8250/8250_dw.c             |   32 +-
 include/dt-bindings/clock/starfive-jh7100.h   |  202 +++
 .../dt-bindings/pinctrl/pinctrl-starfive.h    |  274 ++++
 include/dt-bindings/reset/starfive-jh7100.h   |  126 ++
 27 files changed, 3833 insertions(+), 13 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/clock/starfive,jh7100-clkgen.yaml
 create mode 100644 Documentation/devicetree/bindings/pinctrl/starfive,jh7100-pinctrl.yaml
 create mode 100644 Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml
 create mode 100644 arch/riscv/boot/dts/starfive/Makefile
 create mode 100644 arch/riscv/boot/dts/starfive/jh7100-beaglev-starlight.dts
 create mode 100644 arch/riscv/boot/dts/starfive/jh7100.dtsi
 create mode 100644 drivers/clk/starfive/Kconfig
 create mode 100644 drivers/clk/starfive/Makefile
 create mode 100644 drivers/clk/starfive/clk-starfive-jh7100.c
 create mode 100644 drivers/pinctrl/pinctrl-starfive.c
 create mode 100644 drivers/reset/reset-starfive-jh7100.c
 create mode 100644 include/dt-bindings/clock/starfive-jh7100.h
 create mode 100644 include/dt-bindings/pinctrl/pinctrl-starfive.h
 create mode 100644 include/dt-bindings/reset/starfive-jh7100.h

Comments

Linus Walleij Oct. 13, 2021, 11:32 p.m. UTC | #1

On Tue, Oct 12, 2021 at 3:41 PM Emil Renner Berthing <[e-mail]> wrote:

>   dt-bindings: pinctrl: Add StarFive pinctrl definitions
>   dt-bindings: pinctrl: Add StarFive JH7100 bindings
>   pinctrl: starfive: Add pinctrl driver for StarFive SoCs

I'd be happy to apply these to the pinctrl tree if everybody is
happy.
If you prefer some other merge path:
Acked-by: Linus Walleij <[e-mail]>

Yours,
Linus Walleij

Emil Renner Berthing Oct. 14, 2021, 10:46 a.m. UTC | #2

On Thu, 14 Oct 2021 at 01:32, Linus Walleij <[e-mail]> wrote:
> On Tue, Oct 12, 2021 at 3:41 PM Emil Renner Berthing <[e-mail]> wrote:
>
> >   dt-bindings: pinctrl: Add StarFive pinctrl definitions
> >   dt-bindings: pinctrl: Add StarFive JH7100 bindings
> >   pinctrl: starfive: Add pinctrl driver for StarFive SoCs
>
> I'd be happy to apply these to the pinctrl tree if everybody is
> happy.
> If you prefer some other merge path:
> Acked-by: Linus Walleij <[e-mail]>

Thank you, that sounds great to me. Let me post v2 to address Andy and
Geerts comments though.

/Emil