Re: [PATCH 0/7] ARM: meson: add preliminary support for MesonX/Meson6 SoCs

[Beniamino Galvani <b.galvani@gmail.com>]

On Sun, Aug 17, 2014 at 12:49:47PM +0200, Carlo Caione wrote:
> Amlogic AML8726-MX (codename Meson6) is a highly integrated multimedia
> application processor SoC for Multimedia Internet Device (MID), tablet
> and Set Top Box (STB). It integrates a powerful CPU, a 2D/3D graphics
> subsystem and a state-of-the-art video decoding engine together with
> all major peripherals. It is manufactured by Amlogic, inc.
> 
> This patchset introduces preliminary support for Meson6-based SoCs but
> several IPs and drivers are common among all the MesonX SoCs.

Hi Carlo,

nice job! The patches work fine on a Tronsmart Vega S89 Elite TV box
(Meson8 S802 SoC) just changing the fixed-clock frequency in the dts.

Beniamino

> 
> Amlogic doesn't release any documentation about their SoCs, so the code
> has been reverse-engineered from the messy source code released at:
> 
> http://openlinux.amlogic.com:8000/download/
> 
> Carlo Caione (7):
>   ARM: meson: debug: add debug UART for earlyprintk support
>   ARM: meson: serial: add MesonX SoC on-chip uart driver
>   ARM: meson6: clocksource: add Meson6 timer support
>   ARM: meson: add basic support for MesonX SoCs
>   ARM: meson: dts: add basic Meson/Meson6/Meson6-atv1200 DTSI/DTS
>   ARM: meson: update defconfigs
>   ARM: meson: update documentation (uart, timer and vendors)
> 
>  .../bindings/serial/amlogic,meson-uart.txt         |  17 +
>  .../bindings/timer/amlogic,meson6-timer.txt        |  16 +
>  .../devicetree/bindings/vendor-prefixes.txt        |   1 +
>  arch/arm/Kconfig                                   |   2 +
>  arch/arm/Kconfig.debug                             |  14 +-
>  arch/arm/Makefile                                  |   1 +
>  arch/arm/boot/dts/Makefile                         |   1 +
>  arch/arm/boot/dts/meson.dtsi                       |  75 +++
>  arch/arm/boot/dts/meson6-atv1200.dts               |  27 +
>  arch/arm/boot/dts/meson6.dtsi                      |  44 ++
>  arch/arm/configs/meson_defconfig                   |  99 ++++
>  arch/arm/configs/multi_v7_defconfig                |   3 +
>  arch/arm/include/debug/meson.S                     |  35 ++
>  arch/arm/mach-meson/Kconfig                        |  13 +
>  arch/arm/mach-meson/Makefile                       |   1 +
>  arch/arm/mach-meson/meson.c                        |  36 ++
>  drivers/clocksource/Kconfig                        |   3 +
>  drivers/clocksource/Makefile                       |   1 +
>  drivers/clocksource/meson6_timer.c                 | 187 ++++++
>  drivers/tty/serial/Kconfig                         |  18 +
>  drivers/tty/serial/Makefile                        |   1 +
>  drivers/tty/serial/meson_uart.c                    | 634 +++++++++++++++++++++
>  include/uapi/linux/serial_core.h                   |   3 +
>  23 files changed, 1230 insertions(+), 2 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt
>  create mode 100644 Documentation/devicetree/bindings/timer/amlogic,meson6-timer.txt
>  create mode 100644 arch/arm/boot/dts/meson.dtsi
>  create mode 100644 arch/arm/boot/dts/meson6-atv1200.dts
>  create mode 100644 arch/arm/boot/dts/meson6.dtsi
>  create mode 100644 arch/arm/configs/meson_defconfig
>  create mode 100644 arch/arm/include/debug/meson.S
>  create mode 100644 arch/arm/mach-meson/Kconfig
>  create mode 100644 arch/arm/mach-meson/Makefile
>  create mode 100644 arch/arm/mach-meson/meson.c
>  create mode 100644 drivers/clocksource/meson6_timer.c
>  create mode 100644 drivers/tty/serial/meson_uart.c
> 
> -- 
> 1.9.1
>