int __init routerboot_present(void)
{
struct rb_bios_settings *bs;
u8 *base;
u32 off, len;
if (rb_found)
goto out;
base = (u8 *)KSEG1ADDR(ADM5120_SRAM0_BASE);
bs = (struct rb_bios_settings *)(base + RB_BS_OFFS);
off = prom_read_le32(&bs->hs_offs);
len = prom_read_le32(&bs->hs_size);
if (off > RB_OFFS_MAX)
goto out;
if (routerboot_load_hs(base+off, len) != 0)
goto out;
rb_found = 1;
out:
return rb_found;
}
static int __init routerboot_load_hs(u8 *buf, u16 buflen)
{
u16 id, len;
memset(&rb_hs, 0, sizeof(rb_hs));
if (buflen < 4)
return -1;
if (prom_read_le32(buf) != RB_MAGIC_HARD)
return -1;
/* skip magic value */
buf += 4;
buflen -= 4;
while (buflen > 2) {
id = prom_read_le16(buf);
buf += 2;
buflen -= 2;
if (id == RB_ID_TERMINATOR || buflen < 2)
break;
len = prom_read_le16(buf);
buf += 2;
buflen -= 2;
if (buflen < len)
break;
switch (id) {
case RB_ID_BIOS_VERSION:
rb_hs.bios_ver = (char *)buf;
break;
case RB_ID_BOARD_NAME:
rb_hs.name = (char *)buf;
break;
case RB_ID_MEMORY_SIZE:
rb_hs.mem_size = prom_read_le32(buf);
break;
case RB_ID_MAC_ADDRESS_COUNT:
rb_hs.mac_count = prom_read_le32(buf);
break;
case RB_ID_MAC_ADDRESS_PACK:
if ((len / RB_MAC_SIZE) > 0)
rb_hs.mac_base = buf;
break;
}
buf += len;
buflen -= len;
}
return 0;
}
int __init admboot_get_mac_base(u32 offset, u32 len, u8 *mac)
{
u8 *cfg;
int i;
cfg = (u8 *) KSEG1ADDR(ADM5120_SRAM0_BASE + offset);
for (i = 0; i < len; i += 4) {
u32 magic;
magic = prom_read_le32(cfg + i);
if (magic == ADMBOOT_MAGIC_MAC_BASE) {
int j;
for (j = 0; j < 6; j++)
mac[j] = cfg[i + 4 + j];
return 0;
}
if (magic == ADMBOOT_MAGIC_MAC_BASE_BR6104XX) {
int j;
for (j = 0; j < 6; j++)
mac[j] = cfg[i + 7 + j];
return 0;
}
}
return -ENXIO;
}
