From 48c1fd3882286fd9e978ca8725013f2e060b700e Mon Sep 17 00:00:00 2001 From: Marco Stornelli Date: Tue, 16 Sep 2008 09:14:03 +0200 Subject: avr32: added mem kernel command line option support Signed-off-by: Marco Stornelli Signed-off-by: Haavard Skinnemoen --- arch/avr32/kernel/setup.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'arch/avr32') diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c index d8e623c426c..5c7083916c3 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) } early_param("fbmem", early_parse_fbmem); +/* + * Pick out the memory size. We look for mem=size@start, + * where start and size are "size[KkMmGg]" + */ +static int __init early_mem(char *p) +{ + resource_size_t size, start; + + start = system_ram->start; + size = memparse(p, &p); + if (*p == '@') + start = memparse(p + 1, &p); + + system_ram->start = start; + system_ram->end = system_ram->start + size - 1; + return 0; +} +early_param("mem", early_mem); + static int __init parse_tag_core(struct tag *tag) { if (tag->hdr.size > 2) { -- cgit v1.2.3