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serial: Add support for UART on VIA VT8500 and compatibles

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This adds a driver for the serial ports found in VIA and WonderMedia
Systems-on-Chip. Interrupt-driven FIFO operation is implemented.
The hardware also supports pure register-based operation (which is
slower) and DMA-based FIFO operation. As the FIFOs are only 16 bytes
long, DMA operation is probably not worth the hassle.

Signed-off-by: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alexey Charkov 2010-11-08 20:33:20 +03:00 • committed by Greg Kroah-Hartman
parent af3b8881f4
commit 304e12665a
4 changed files with 662 additions and 0 deletions
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3
include/linux/serial_core.h
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@ -199,6 +199,9 @@
/* TI OMAP-UART */
#define PORT_OMAP 96
/* VIA VT8500 SoC */
#define PORT_VT8500 97
#ifdef __KERNEL__
#include <linux/compiler.h>