diff options
Diffstat (limited to 'arch/sparc/prom/init_64.c')
-rw-r--r-- | arch/sparc/prom/init_64.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/sparc/prom/init_64.c b/arch/sparc/prom/init_64.c new file mode 100644 index 0000000..7b00f89 --- /dev/null +++ b/arch/sparc/prom/init_64.c @@ -0,0 +1,57 @@ +/* + * init.c: Initialize internal variables used by the PROM + * library functions. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/ctype.h> + +#include <asm/openprom.h> +#include <asm/oplib.h> + +/* OBP version string. */ +char prom_version[80]; + +/* The root node of the prom device tree. */ +int prom_stdin, prom_stdout; +int prom_chosen_node; + +/* 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_cif_init(void *, void *); + +void __init prom_init(void *cif_handler, void *cif_stack) +{ + int node; + + prom_cif_init(cif_handler, cif_stack); + + prom_chosen_node = prom_finddevice(prom_chosen_path); + if (!prom_chosen_node || prom_chosen_node == -1) + prom_halt(); + + prom_stdin = prom_getint(prom_chosen_node, "stdin"); + prom_stdout = prom_getint(prom_chosen_node, "stdout"); + + node = prom_finddevice("/openprom"); + if (!node || node == -1) + prom_halt(); + + prom_getstring(node, "version", prom_version, sizeof(prom_version)); + + prom_printf("\n"); +} + +void __init prom_init_report(void) +{ + printk("PROMLIB: Sun IEEE Boot Prom '%s'\n", prom_version); + printk("PROMLIB: Root node compatible: %s\n", prom_root_compatible); +} |