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ar7 misc fixes:

Browse Source 
- serial
 - memory probing


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6635 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
ejka
2007-03-22 16:39:07 +00:00
parent 7d21d53292
commit 6e38bb0457
4 changed files with 64 additions and 42 deletions
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42
target/linux/ar7-2.6/files/arch/mips/ar7/memory.c
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@@ -38,33 +38,26 @@
#include <asm/mips-boards/prom.h>
#warning FIXME: use sdram control regs and/or autodetection
static int __init memsize(void)
{
char *memsize_str;
unsigned int result;
char cmdline[CL_SIZE], *ptr;
u32 size = (64 << 20);
volatile u32 *addr = (u32 *)KSEG1ADDR(0x14000000 + size - 4);
u32 *kernel_end = (u32 *)KSEG1ADDR(CPHYSADDR((u32)&_end));
/* 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) {
result = 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 (8Mb)\n");
result = 0x00800000;
} else {
result = simple_strtol(memsize_str, NULL, 0);
}
while (addr > kernel_end) {
*addr = (u32)addr;
size >>= 1;
addr -= size >> 2;
}
return result;
do {
addr += size >> 2;
if (*addr != (u32)addr)
break;
size <<= 1;
} while (size < (64 << 20));
return size;
}
#ifdef CONFIG_NEED_MULTIPLE_NODES
@@ -167,9 +160,10 @@ void __init mem_init(void)
void __init prom_meminit(void)
{
unsigned long pages;
#ifdef CONFIG_NEED_MULTIPLE_NODES
unsigned long kernel_start, kernel_end;
unsigned long pages, free_pages;
unsigned long free_pages;
unsigned long bootmap_size;
#endif
@@ -196,7 +190,5 @@ void __init prom_meminit(void)
unsigned long __init prom_free_prom_memory(void)
{
/* return freed;
*/
return 0;
}