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Use memory regions information provided in FDT.

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Reviewed by:	brooks
Sponsored by:	DARPA, AFRL
This commit is contained in:
Ruslan Bukin 2014-12-17 09:34:54 +00:00
parent 2b8a4d8033
commit e2d5f675a0
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=275858
1 changed files with 28 additions and 0 deletions
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28
sys/mips/beri/beri_machdep.c
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@ -88,6 +88,11 @@ static void
mips_init(void)
{
int i;
#ifdef FDT
struct mem_region mr[FDT_MEM_REGIONS];
int mr_cnt, val;
int j;
#endif
for (i = 0; i < 10; i++) {
phys_avail[i] = 0;
@ -102,6 +107,29 @@ mips_init(void)
physmem = realmem;
#ifdef FDT
if (fdt_get_mem_regions(mr, &mr_cnt, &val) == 0) {
physmem = btoc(val);
KASSERT((phys_avail[0] >= mr[0].mr_start) && \
(phys_avail[0] < (mr[0].mr_start + mr[0].mr_size)),
("First region is not within FDT memory range"));
/* Limit size of the first region */
phys_avail[1] = MIN(mr[0].mr_size, ctob(realmem));
dump_avail[1] = phys_avail[1];
/* Add the rest of regions */
for (i = 1, j = 2; i < mr_cnt; i++, j+=2) {
phys_avail[j] = mr[i].mr_start;
phys_avail[j+1] = mr[i].mr_size;
dump_avail[j] = phys_avail[j];
dump_avail[j+1] = phys_avail[j+1];
}
}
#endif
init_param1();
init_param2(physmem);
mips_cpu_init();