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asm-generic: add legacy I/O header files

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The dma.h, hw_irq.h, serial.h and timex.h files originally
described PC-style i8237, i8259A, i8250, i8253 and i8255 chips
as well as the VGA style text mode graphics.

Modern architectures live happily without these specific
interfaces, but a few definitions from these headers keep
getting used in common code.

The new generic headers are what most architectures use
anyway nowadays, just implementing the minimal definitions.

Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2009-05-13 22:56:34 +00:00
committed by Arnd Bergmann
parent aafe4dbed0
commit ae49e80795
6 changed files with 106 additions and 0 deletions
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13
include/asm-generic/serial.h Normal file
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@@ -0,0 +1,13 @@
#ifndef __ASM_GENERIC_SERIAL_H
#define __ASM_GENERIC_SERIAL_H
/*
* This should not be an architecture specific #define, oh well.
*
* Traditionally, it just describes i8250 and related serial ports
* that have this clock rate.
*/
#define BASE_BAUD (1843200 / 16)
#endif /* __ASM_GENERIC_SERIAL_H */