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Get memsize from SYSCTL_CFG0 register.

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This commit is contained in:
matt 2011-08-03 16:25:02 +00:00
parent 66d63879a2
commit b8bb0531f6
1 changed files with 12 additions and 9 deletions
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21
sys/arch/evbmips/rasoc/machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: machdep.c,v 1.2 2011/07/28 15:50:13 matt Exp $ */
/* $NetBSD: machdep.c,v 1.3 2011/08/03 16:25:02 matt Exp $ */
/*-
* Copyright (c) 2011 CradlePoint Technology, Inc.
* All rights reserved.
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.2 2011/07/28 15:50:13 matt Exp $");
__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.3 2011/08/03 16:25:02 matt Exp $");
#include <sys/param.h>
#include <sys/boot_flag.h>
@ -155,17 +155,20 @@ mach_init(void)
/*
* Determine the memory size.
*
* Note: Reserve the first page! That's where the trap
* vectors are located.
*/
memsize = RTMEMSIZE * 1024 * 1024;
memsize = *(volatile uint32_t *)
MIPS_PHYS_TO_KSEG1(RA_SYSCTL_BASE + RA_SYSCTL_CFG0);
memsize = __SHIFTOUT(memsize, SYSCTL_CFG0_DRAM_SIZE);
if (__predict_false(memsize == 0)) {
memsize = 2 << 20;
} else {
memsize = 4 << (20 + memsize);
}
physmem = btoc(memsize);
mem_clusters[mem_cluster_cnt].start = PAGE_SIZE;
mem_clusters[mem_cluster_cnt].size =
memsize - mem_clusters[mem_cluster_cnt].start;
mem_clusters[mem_cluster_cnt].start = 0;
mem_clusters[mem_cluster_cnt].size = memsize;
mem_cluster_cnt++;
/*