[v4,0/2] tty: serial: add DT bindings and serial driver for the SiFive FU540 UART

Message

Paul Walmsley April 11, 2019, 9 a.m. UTC

This series adds a serial driver, with console support, for the
UART IP block present on the SiFive FU540 SoC.  The programming
model is straightforward, but unique.

Boot-tested on a SiFive FU540 HiFive-U board, using BBL and the
open-source FSBL (with appropriate patches to the DT data).

This fourth version incorporates a few more comments from the lists.

The patches in this series can also be found, with the PRCI patches,
DT patches, and DT prerequisite patch, at:

https://github.com/sifive/riscv-linux/tree/dev/paulw/serial-v5.1-rc4


- Paul


Paul Walmsley (2):
  dt-bindings: serial: add documentation for the SiFive UART driver
  tty: serial: add driver for the SiFive UART

 .../bindings/serial/sifive-serial.txt         |   33 +
 drivers/tty/serial/Kconfig                    |   24 +
 drivers/tty/serial/Makefile                   |    1 +
 drivers/tty/serial/sifive.c                   | 1067 +++++++++++++++++
 include/uapi/linux/serial_core.h              |    3 +
 5 files changed, 1128 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/sifive-serial.txt
 create mode 100644 drivers/tty/serial/sifive.c