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Date:   Fri, 12 Apr 2019 19:01:09 -0700
From:   Paul Walmsley <>
Cc:     Paul Walmsley <>
Subject: [PATCH v5 0/2]  tty: serial: add DT bindings and serial driver for the SiFive FU540 UART

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 fifth version fixes a bug in the set_termios handler,
found by Andreas Schwab <>.

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

- 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                   | 1056 +++++++++++++++++
 include/uapi/linux/serial_core.h              |    3 +
 5 files changed, 1117 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/sifive-serial.txt
 create mode 100644 drivers/tty/serial/sifive.c


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