From: Masahiro Yamada <yamada.masahiro@socionext.com>
Date: Fri, 29 May 2015 06:04:31 +0000 (+0900)
Subject: serial: 8250_uniphier: add UniPhier serial driver
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2^2~6
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a8d2903cb6a;p=pandora-kernel.git

serial: 8250_uniphier: add UniPhier serial driver

Add the driver for on-chip UART used on UniPhier SoCs.

This hardware is similar to 8250, but the register mapping is
slightly different:
  - The offset to FCR, MCR is different.
  - The divisor latch access bit does not exist.  Instead, the
    divisor latch register is available at offset 9.

This driver overrides serial_{in,out}, dl_{read,write} callbacks,
but wants to borrow most of code from 8250_core.c.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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