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authorMarco Stornelli <marco.stornelli@gmail.com>2008-09-16 03:14:03 -0400
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2008-09-22 03:51:01 -0400
commit48c1fd3882286fd9e978ca8725013f2e060b700e (patch)
tree77613bf4d867532f4f4976592a66ee39d96869c3 /arch
parent3d256151471ba9fd60a5b896a706eb21a6b1cea1 (diff)
avr32: added mem kernel command line option support
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/avr32/kernel/setup.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index d8e623c426c1..5c7083916c33 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -283,6 +283,25 @@ static int __init early_parse_fbmem(char *p)
283} 283}
284early_param("fbmem", early_parse_fbmem); 284early_param("fbmem", early_parse_fbmem);
285 285
286/*
287 * Pick out the memory size. We look for mem=size@start,
288 * where start and size are "size[KkMmGg]"
289 */
290static int __init early_mem(char *p)
291{
292 resource_size_t size, start;
293
294 start = system_ram->start;
295 size = memparse(p, &p);
296 if (*p == '@')
297 start = memparse(p + 1, &p);
298
299 system_ram->start = start;
300 system_ram->end = system_ram->start + size - 1;
301 return 0;
302}
303early_param("mem", early_mem);
304
286static int __init parse_tag_core(struct tag *tag) 305static int __init parse_tag_core(struct tag *tag)
287{ 306{
288 if (tag->hdr.size > 2) { 307 if (tag->hdr.size > 2) {