diff options
| author | merge <null@invalid> | 2009-01-22 13:55:32 +0000 |
|---|---|---|
| committer | Andy Green <agreen@octopus.localdomain> | 2009-01-22 13:55:32 +0000 |
| commit | aa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch) | |
| tree | fbb786d0ac6f8a774fd834e9ce951197e60fbffa /arch/sparc/prom/bootstr_32.c | |
| parent | f2d78193eae5dccd3d588d2c8ea0866efc368332 (diff) | |
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040
stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch
mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch
Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'arch/sparc/prom/bootstr_32.c')
| -rw-r--r-- | arch/sparc/prom/bootstr_32.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/sparc/prom/bootstr_32.c b/arch/sparc/prom/bootstr_32.c new file mode 100644 index 00000000000..916831da7e6 --- /dev/null +++ b/arch/sparc/prom/bootstr_32.c @@ -0,0 +1,59 @@ +/* + * bootstr.c: Boot string/argument acquisition from the PROM. + * + * Copyright(C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#include <linux/string.h> +#include <asm/oplib.h> +#include <linux/init.h> + +#define BARG_LEN 256 +static char barg_buf[BARG_LEN] = { 0 }; +static char fetched __initdata = 0; + +char * __init +prom_getbootargs(void) +{ + int iter; + char *cp, *arg; + + /* This check saves us from a panic when bootfd patches args. */ + if (fetched) { + return barg_buf; + } + + switch(prom_vers) { + case PROM_V0: + cp = barg_buf; + /* Start from 1 and go over fd(0,0,0)kernel */ + for(iter = 1; iter < 8; iter++) { + arg = (*(romvec->pv_v0bootargs))->argv[iter]; + if(arg == 0) break; + while(*arg != 0) { + /* Leave place for space and null. */ + if(cp >= barg_buf + BARG_LEN-2){ + /* We might issue a warning here. */ + break; + } + *cp++ = *arg++; + } + *cp++ = ' '; + } + *cp = 0; + break; + case PROM_V2: + case PROM_V3: + /* + * V3 PROM cannot supply as with more than 128 bytes + * of an argument. But a smart bootstrap loader can. + */ + strlcpy(barg_buf, *romvec->pv_v2bootargs.bootargs, sizeof(barg_buf)); + break; + default: + break; + } + + fetched = 1; + return barg_buf; +} |