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author | Greg Ungerer <gerg@snapgear.com> | 2008-02-01 17:37:46 +1000 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-02-01 20:58:10 +1100 |
commit | 591091a15e22dc4ec30aa6fd5998be4e024b5c4c (patch) | |
tree | 05bc18df1558861d8a8116c309ed07a2384607a3 /arch/m68knommu/platform/coldfire | |
parent | 297a834d0b593179cc178ddc5f128c8b8844d7be (diff) | |
download | linux-591091a15e22dc4ec30aa6fd5998be4e024b5c4c.tar.bz2 |
m68knommu: move ColdFire vectors.c to its own coldfire directory
Move common ColdFire CPU vectors.c to common coldfire platform directory.
Currently the common ColdFire CPU family code sits in the
arch/m68knommu/platform/5307 directory. This is confusing, the files
containing this common code are in no way specific to the 5307 ColdFire.
Create an arch/m68knommu/platform/coldfire directory to contain this
common code. Other m68knommu CPU varients do not need use this code
though, so it doesn't make sense to move it to arch/m68knommu/kernel.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/m68knommu/platform/coldfire')
-rw-r--r-- | arch/m68knommu/platform/coldfire/vectors.c | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/coldfire/vectors.c b/arch/m68knommu/platform/coldfire/vectors.c new file mode 100644 index 000000000000..6cf894620234 --- /dev/null +++ b/arch/m68knommu/platform/coldfire/vectors.c @@ -0,0 +1,105 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5307/vectors.c + * + * Copyright (C) 1999-2007, Greg Ungerer <gerg@snapgear.com> + */ + +/***************************************************************************/ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcfsim.h> +#include <asm/mcfdma.h> +#include <asm/mcfwdebug.h> + +/***************************************************************************/ + +#ifdef TRAP_DBG_INTERRUPT + +asmlinkage void dbginterrupt_c(struct frame *fp) +{ + extern void dump(struct pt_regs *fp); + printk(KERN_DEBUG "%s(%d): BUS ERROR TRAP\n", __FILE__, __LINE__); + dump((struct pt_regs *) fp); + asm("halt"); +} + +#endif + +/***************************************************************************/ + +extern e_vector *_ramvec; + +void set_evector(int vecnum, void (*handler)(void)) +{ + if (vecnum >= 0 && vecnum <= 255) + _ramvec[vecnum] = handler; +} + +/***************************************************************************/ + +/* Assembler routines */ +asmlinkage void buserr(void); +asmlinkage void trap(void); +asmlinkage void system_call(void); +asmlinkage void inthandler(void); + +void __init init_vectors(void) +{ + int i; + + /* + * There is a common trap handler and common interrupt + * handler that handle almost every vector. We treat + * the system call and bus error special, they get their + * own first level handlers. + */ + for (i = 3; (i <= 23); i++) + _ramvec[i] = trap; + for (i = 33; (i <= 63); i++) + _ramvec[i] = trap; + for (i = 24; (i <= 31); i++) + _ramvec[i] = inthandler; + for (i = 64; (i < 255); i++) + _ramvec[i] = inthandler; + _ramvec[255] = 0; + + _ramvec[2] = buserr; + _ramvec[32] = system_call; + +#ifdef TRAP_DBG_INTERRUPT + _ramvec[12] = dbginterrupt; +#endif +} + +/***************************************************************************/ + +void enable_vector(unsigned int irq) +{ + /* Currently no action on ColdFire */ +} + +void disable_vector(unsigned int irq) +{ + /* Currently no action on ColdFire */ +} + +void ack_vector(unsigned int irq) +{ + /* Currently no action on ColdFire */ +} + +/***************************************************************************/ + +void coldfire_reset(void) +{ + HARD_RESET_NOW(); +} + +/***************************************************************************/ |