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Diffstat (limited to 'arch/mips/fw/arc/tree.c')
| -rw-r--r-- | arch/mips/fw/arc/tree.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/arch/mips/fw/arc/tree.c b/arch/mips/fw/arc/tree.c new file mode 100644 index 000000000000..d68e5a59c1f6 --- /dev/null +++ b/arch/mips/fw/arc/tree.c @@ -0,0 +1,127 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * PROM component device tree code. + * + * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) + * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org) + * Copyright (C) 1999 Silicon Graphics, Inc. + */ +#include <linux/init.h> +#include <asm/fw/arc/types.h> +#include <asm/sgialib.h> + +#undef DEBUG_PROM_TREE + +pcomponent * __init +ArcGetPeer(pcomponent *Current) +{ + if (Current == PROM_NULL_COMPONENT) + return PROM_NULL_COMPONENT; + + return (pcomponent *) ARC_CALL1(next_component, Current); +} + +pcomponent * __init +ArcGetChild(pcomponent *Current) +{ + return (pcomponent *) ARC_CALL1(child_component, Current); +} + +pcomponent * __init +ArcGetParent(pcomponent *Current) +{ + if (Current == PROM_NULL_COMPONENT) + return PROM_NULL_COMPONENT; + + return (pcomponent *) ARC_CALL1(parent_component, Current); +} + +LONG __init +ArcGetConfigurationData(VOID *Buffer, pcomponent *Current) +{ + return ARC_CALL2(component_data, Buffer, Current); +} + +pcomponent * __init +ArcAddChild(pcomponent *Current, pcomponent *Template, VOID *ConfigurationData) +{ + return (pcomponent *) + ARC_CALL3(child_add, Current, Template, ConfigurationData); +} + +LONG __init +ArcDeleteComponent(pcomponent *ComponentToDelete) +{ + return ARC_CALL1(comp_del, ComponentToDelete); +} + +pcomponent * __init +ArcGetComponent(CHAR *Path) +{ + return (pcomponent *)ARC_CALL1(component_by_path, Path); +} + +#ifdef DEBUG_PROM_TREE + +static char *classes[] = { + "system", "processor", "cache", "adapter", "controller", "peripheral", + "memory" +}; + +static char *types[] = { + "arc", "cpu", "fpu", "picache", "pdcache", "sicache", "sdcache", + "sccache", "memdev", "eisa adapter", "tc adapter", "scsi adapter", + "dti adapter", "multi-func adapter", "disk controller", + "tp controller", "cdrom controller", "worm controller", + "serial controller", "net controller", "display controller", + "parallel controller", "pointer controller", "keyboard controller", + "audio controller", "misc controller", "disk peripheral", + "floppy peripheral", "tp peripheral", "modem peripheral", + "monitor peripheral", "printer peripheral", "pointer peripheral", + "keyboard peripheral", "terminal peripheral", "line peripheral", + "net peripheral", "misc peripheral", "anonymous" +}; + +static char *iflags[] = { + "bogus", "read only", "removable", "console in", "console out", + "input", "output" +}; + +static void __init +dump_component(pcomponent *p) +{ + printk("[%p]:class<%s>type<%s>flags<%s>ver<%d>rev<%d>", + p, classes[p->class], types[p->type], + iflags[p->iflags], p->vers, p->rev); + printk("key<%08lx>\n\tamask<%08lx>cdsize<%d>ilen<%d>iname<%s>\n", + p->key, p->amask, (int)p->cdsize, (int)p->ilen, p->iname); +} + +static void __init +traverse(pcomponent *p, int op) +{ + dump_component(p); + if(ArcGetChild(p)) + traverse(ArcGetChild(p), 1); + if(ArcGetPeer(p) && op) + traverse(ArcGetPeer(p), 1); +} + +void __init +prom_testtree(void) +{ + pcomponent *p; + + p = ArcGetChild(PROM_NULL_COMPONENT); + dump_component(p); + p = ArcGetChild(p); + while(p) { + dump_component(p); + p = ArcGetPeer(p); + } +} + +#endif /* DEBUG_PROM_TREE */ |