From: Kevin Cernekee <cernekee@gmail.com>
To: gregkh@linuxfoundation.org, jslaby@suse.cz, robh@kernel.org
Cc: tushar.behera@linaro.org, daniel@zonque.org,
haojian.zhuang@gmail.com, robert.jarzmik@free.fr,
grant.likely@linaro.org, f.fainelli@gmail.com, mbizon@freebox.fr,
jogo@openwrt.org, linux-mips@linux-mips.org,
linux-serial@vger.kernel.org, devicetree@vger.kernel.org
Subject: [PATCH/RFC 2/8] serial: core: Add big_endian flag
Date: Wed, 12 Nov 2014 00:46:27 -0800 [thread overview]
Message-ID: <1415781993-7755-3-git-send-email-cernekee@gmail.com> (raw)
In-Reply-To: <1415781993-7755-1-git-send-email-cernekee@gmail.com>
Add a big_endian flag alongside membase, regshift, and iotype. Most
drivers currently use readl/writel, but if it is necessary to support
a BE SoC, the driver can check this field to see which MMIO accessor
functions to use.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
---
include/linux/serial_core.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 21c2e05..ae372f4 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -138,7 +138,7 @@ struct uart_port {
unsigned char x_char; /* xon/xoff char */
unsigned char regshift; /* reg offset shift */
unsigned char iotype; /* io access style */
- unsigned char unused1;
+ unsigned char big_endian; /* BE registers */
#define UPIO_PORT (0)
#define UPIO_HUB6 (1)
--
2.1.1
next prev parent reply other threads:[~2014-11-12 8:47 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-12 8:46 [PATCH/RFC 0/8] UART driver support for BMIPS multiplatform kernels Kevin Cernekee
2014-11-12 8:46 ` [PATCH/RFC 1/8] tty: Fallback to use dynamic major number Kevin Cernekee
2014-11-12 8:46 ` Kevin Cernekee [this message]
2014-11-12 8:46 ` [PATCH/RFC 3/8] of: Add helper function to check MMIO register endianness Kevin Cernekee
2014-11-12 8:50 ` Jiri Slaby
2014-11-12 9:04 ` Kevin Cernekee
2014-11-12 9:23 ` Jiri Slaby
2014-11-12 8:46 ` [PATCH/RFC 4/8] serial: pxa: Add fifo-size and {big,native}-endian properties Kevin Cernekee
2014-11-12 9:02 ` Arnd Bergmann
2014-11-12 9:03 ` Jiri Slaby
2014-11-12 9:08 ` Arnd Bergmann
2014-11-12 8:46 ` [PATCH/RFC 5/8] serial: pxa: Make the driver buildable for BCM7xxx set-top platforms Kevin Cernekee
2014-11-12 9:04 ` Arnd Bergmann
2014-11-12 9:19 ` Kevin Cernekee
2014-11-13 9:42 ` Arnd Bergmann
2014-11-13 19:08 ` Kevin Cernekee
2014-11-13 22:34 ` Arnd Bergmann
2014-11-14 21:07 ` Robert Jarzmik
2014-11-12 8:46 ` [PATCH/RFC 6/8] serial: pxa: Update DT binding documentation Kevin Cernekee
2014-11-12 8:46 ` [PATCH/RFC 7/8] serial: earlycon: Set uart_port->big_endian based on DT properties Kevin Cernekee
2014-11-12 8:46 ` [PATCH/RFC 8/8] serial: pxa: Add OF_EARLYCON support Kevin Cernekee
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