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[v11,0/5] LiteX SoC controller and LiteUART serial driver

Message ID 20200923120817.1667149-0-mholenko@antmicro.com
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Series LiteX SoC controller and LiteUART serial driver | expand

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Mateusz Holenko Sept. 23, 2020, 10:08 a.m. UTC 
This patchset introduces support for LiteX SoC Controller
and LiteUART - serial device from LiteX SoC builder
(https://github.com/enjoy-digital/litex).

In the following patchset I will add
a new mor1kx-based (OpenRISC) platform that
uses this device.

Later I plan to extend this platform by
adding support for more devices from LiteX suite.

Changes in v11:
    - added Reviewed-by tag
    - reformatted some comments
    - switched to WARN instead of BUG on CSR validation fail

Changes in v10:
    - added casting to avoid sparse warnings in the SoC Controller's driver

Changes in v9:
    - fixed the `reg` node notation in the DT example
    - added exporting of the `litex_set_reg`/`litex_get_reg` symbols

Changes in v8:
    - fixed help messages in LiteUART's KConfig
    - removed dependency between LiteUART and LiteX SoC drivers
    - removed `litex_check_accessors()` helper function
    - added crashing (BUG) on the failed LiteX CSR access test

Changes in v7:
    - added missing include directive in UART's driver

Changes in v6:
    - changed accessors in SoC Controller's driver
    - reworked UART driver

Changes in v5:
    - added Reviewed-by tag
    - removed custom accessors from SoC Controller's driver
    - fixed error checking in SoC Controller's driver

Changes in v4:
    - fixed copyright headers
    - fixed SoC Controller's yaml 
    - simplified SoC Controller's driver

Changes in v3:
    - added Acked-by and Reviewed-by tags
    - introduced LiteX SoC Controller driver
    - removed endianness detection (handled now by LiteX SoC Controller driver)
    - modified litex.h header
    - DTS aliases for LiteUART made optional
    - renamed SERIAL_LITEUART_NR_PORTS to SERIAL_LITEUART_MAX_PORTS
    - changed PORT_LITEUART from 122 to 123

Changes in v2:
    - binding description rewritten to a yaml schema file
    - added litex.h header with common register access functions

Filip Kokosinski (3):
  dt-bindings: vendor: add vendor prefix for LiteX
  dt-bindings: serial: document LiteUART bindings
  drivers/tty/serial: add LiteUART driver

Pawel Czarnecki (2):
  dt-bindings: soc: document LiteX SoC Controller bindings
  drivers/soc/litex: add LiteX SoC Controller driver

 .../bindings/serial/litex,liteuart.yaml       |  38 ++
 .../soc/litex/litex,soc-controller.yaml       |  39 ++
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 MAINTAINERS                                   |   9 +
 drivers/soc/Kconfig                           |   1 +
 drivers/soc/Makefile                          |   1 +
 drivers/soc/litex/Kconfig                     |  15 +
 drivers/soc/litex/Makefile                    |   3 +
 drivers/soc/litex/litex_soc_ctrl.c            | 194 +++++++++
 drivers/tty/serial/Kconfig                    |  32 ++
 drivers/tty/serial/Makefile                   |   1 +
 drivers/tty/serial/liteuart.c                 | 402 ++++++++++++++++++
 include/linux/litex.h                         |  24 ++
 13 files changed, 761 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/litex,liteuart.yaml
 create mode 100644 Documentation/devicetree/bindings/soc/litex/litex,soc-controller.yaml
 create mode 100644 drivers/soc/litex/Kconfig
 create mode 100644 drivers/soc/litex/Makefile
 create mode 100644 drivers/soc/litex/litex_soc_ctrl.c
 create mode 100644 drivers/tty/serial/liteuart.c
 create mode 100644 include/linux/litex.h