diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2008-11-29 22:15:38 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2008-12-04 09:17:16 -0800 |
commit | 708d4f09647106d549c646dc459c7ccf2c237cc8 (patch) | |
tree | 23657862535d88fcb71bc416c51c27cd480a93c4 /arch/sparc/prom/init_32.c | |
parent | 5e53879008b9acefe9f43498fd36db7376e08739 (diff) |
sparc: prepare prom/ for unification
- rename files where sparc64 uses identical names to *_32.c
- refactor Makefile (but keep linking order)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/prom/init_32.c')
-rw-r--r-- | arch/sparc/prom/init_32.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/sparc/prom/init_32.c b/arch/sparc/prom/init_32.c new file mode 100644 index 000000000000..873217c6d823 --- /dev/null +++ b/arch/sparc/prom/init_32.c @@ -0,0 +1,75 @@ +/* + * init.c: Initialize internal variables used by the PROM + * library functions. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include <linux/kernel.h> +#include <linux/init.h> + +#include <asm/openprom.h> +#include <asm/oplib.h> + +struct linux_romvec *romvec; +enum prom_major_version prom_vers; +unsigned int prom_rev, prom_prev; + +/* The root node of the prom device tree. */ +int prom_root_node; + +/* Pointer to the device tree operations structure. */ +struct linux_nodeops *prom_nodeops; + +/* You must call prom_init() before you attempt to use any of the + * routines in the prom library. It returns 0 on success, 1 on + * failure. It gets passed the pointer to the PROM vector. + */ + +extern void prom_meminit(void); +extern void prom_ranges_init(void); + +void __init prom_init(struct linux_romvec *rp) +{ + romvec = rp; + + switch(romvec->pv_romvers) { + case 0: + prom_vers = PROM_V0; + break; + case 2: + prom_vers = PROM_V2; + break; + case 3: + prom_vers = PROM_V3; + break; + default: + prom_printf("PROMLIB: Bad PROM version %d\n", + romvec->pv_romvers); + prom_halt(); + break; + }; + + prom_rev = romvec->pv_plugin_revision; + prom_prev = romvec->pv_printrev; + prom_nodeops = romvec->pv_nodeops; + + prom_root_node = prom_getsibling(0); + if((prom_root_node == 0) || (prom_root_node == -1)) + prom_halt(); + + if((((unsigned long) prom_nodeops) == 0) || + (((unsigned long) prom_nodeops) == -1)) + prom_halt(); + + prom_meminit(); + + prom_ranges_init(); + + printk("PROMLIB: Sun Boot Prom Version %d Revision %d\n", + romvec->pv_romvers, prom_rev); + + /* Initialization successful. */ + return; +} |