diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68knommu/platform/5307/vectors.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/m68knommu/platform/5307/vectors.c')
-rw-r--r-- | arch/m68knommu/platform/5307/vectors.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/m68knommu/platform/5307/vectors.c b/arch/m68knommu/platform/5307/vectors.c new file mode 100644 index 00000000000..ac313a160d8 --- /dev/null +++ b/arch/m68knommu/platform/5307/vectors.c @@ -0,0 +1,95 @@ +/***************************************************************************/ + +/* + * linux/arch/m68knommu/platform/5307/vectors.c + * + * Copyright (C) 1999-2003, Greg Ungerer <gerg@snapgear.com> + */ + +/***************************************************************************/ + +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/param.h> +#include <linux/init.h> +#include <linux/unistd.h> +#include <linux/delay.h> +#include <asm/irq.h> +#include <asm/dma.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include <asm/coldfire.h> +#include <asm/mcftimer.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 coldfire_trap_init(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 coldfire_reset(void) +{ + HARD_RESET_NOW(); +} + +/***************************************************************************/ |