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jcastillo |
/****************************************************************************/
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/*
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* elia.h -- Moreton Bay eLIA platform support.
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*
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* (C) Copyright 1999-2000, Moreton Bay (www.moreton.com.au)
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*/
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/****************************************************************************/
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#ifndef elia_h
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#define elia_h
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/****************************************************************************/
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#include <linux/config.h>
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#include <asm/coldfire.h>
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#ifdef CONFIG_eLIA
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/*
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* The eLIA board has 2 programmable LEDs. We use one as the
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* alive indicator, the other is user configurable.
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* The serial port DTR and DCD lines are also on the Parallel I/O
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* as well, so define those too.
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*/
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#define eLIA_LEDDIAG 0x2000
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#define eLIA_USER 0x1000
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#define eLIA_DCD1 0x0001
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#define eLIA_DCD0 0x0002
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#define eLIA_DTR1 0x0004
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#define eLIA_DTR0 0x0008
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#define eLIA_PCIRESET 0x0020
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/*
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* User space routines for back door access to the LEDs :-)
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* This is a complete and utter bastard hack... But quick...
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* The "on" pattern turns on some LEDs permanently. The "off"
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* pattern turns some LEDs off permantly. The "flash" pattern
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* will flash a particular LED pattern.
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*/
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#define LEDON(x) *((unsigned char *) 0x3fe) |= (x)
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#define LEDOFF(x) *((unsigned char *) 0x3fe) &= ~(x)
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#define LEDFLASH(x) *((unsigned char *) 0x3ff) = (x)
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#define GETLED() *((unsigned char *) 0x3fe)
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#define GETFLASH() *((unsigned char *) 0x3ff)
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/*
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* Kernel macros to set and unset the LEDs.
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*/
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#ifndef __ASSEMBLY__
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extern unsigned short ppdata;
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#endif /* __ASSEMBLY__ */
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/*
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* The following macros set and unset the LEDS.
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*/
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#define setledpp(x) \
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*((volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT)) = \
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(ppdata &= ~(x))
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#define unsetledpp(x) \
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*((volatile unsigned short *) (MCF_MBAR + MCFSIM_PADAT)) = \
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(ppdata |= (x))
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/*
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* Panic setup for eLIA. There may be no console so it may be
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* difficult to tell if the kernel has paniced or not. So this little
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* macro will turn on all the LEDS - for a visual indicator of panic.
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*/
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#define nettel_panic() { cli(); setledpp(0x3000); }
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#endif /* CONFIG_eLIA */
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/****************************************************************************/
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#endif /* elia_h */
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