diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 2005-07-14 15:57:16 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2005-10-29 19:31:53 +0100 |
| commit | e01402b115cccb6357f956649487aca2c6f7fbba (patch) | |
| tree | 256e14f8d2762de98b992219b1a47e8f56b4b0da /arch/mips/mips-boards/generic/memory.c | |
| parent | 86071b637db7baf599df26fdf820dce2fc55ca9f (diff) | |
More AP / SP bits for the 34K, the Malta bits and things. Still wants
a little polishing.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mips-boards/generic/memory.c')
| -rw-r--r-- | arch/mips/mips-boards/generic/memory.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mips-boards/generic/memory.c index 5ae2b43e4c2..2c8afd77a20 100644 --- a/arch/mips/mips-boards/generic/memory.c +++ b/arch/mips/mips-boards/generic/memory.c @@ -22,6 +22,7 @@ #include <linux/init.h> #include <linux/mm.h> #include <linux/bootmem.h> +#include <linux/string.h> #include <asm/bootinfo.h> #include <asm/page.h> @@ -55,18 +56,30 @@ struct prom_pmemblock * __init prom_getmdesc(void) { char *memsize_str; unsigned int memsize; + char cmdline[CL_SIZE], *ptr; - memsize_str = prom_getenv("memsize"); - if (!memsize_str) { - prom_printf("memsize not set in boot prom, set to default (32Mb)\n"); - memsize = 0x02000000; - } else { + /* Check the command line first for a memsize directive */ + strcpy(cmdline, arcs_cmdline); + ptr = strstr(cmdline, "memsize="); + if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' ')) + ptr = strstr(ptr, " memsize="); + + if (ptr) { + memsize = memparse(ptr + 8, &ptr); + } + else { + /* otherwise look in the environment */ + memsize_str = prom_getenv("memsize"); + if (!memsize_str) { + prom_printf("memsize not set in boot prom, set to default (32Mb)\n"); + memsize = 0x02000000; + } else { #ifdef DEBUG - prom_printf("prom_memsize = %s\n", memsize_str); + prom_printf("prom_memsize = %s\n", memsize_str); #endif - memsize = simple_strtol(memsize_str, NULL, 0); + memsize = simple_strtol(memsize_str, NULL, 0); + } } - memset(mdesc, 0, sizeof(mdesc)); mdesc[0].type = yamon_dontuse; |