diff options
Diffstat (limited to 'arch/mips/bcm47xx')
| -rw-r--r-- | arch/mips/bcm47xx/prom.c | 19 | ||||
| -rw-r--r-- | arch/mips/bcm47xx/sprom.c | 1 |
2 files changed, 12 insertions, 8 deletions
diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c index 0af808dfd1ca..1a03a2f43496 100644 --- a/arch/mips/bcm47xx/prom.c +++ b/arch/mips/bcm47xx/prom.c @@ -69,15 +69,18 @@ static __init void prom_init_mem(void) * BCM47XX uses 128MB for addressing the ram, if the system contains * less that that amount of ram it remaps the ram more often into the * available space. - * Accessing memory after 128MB will cause an exception. - * max contains the biggest possible address supported by the platform. - * If the method wants to try something above we assume 128MB ram. */ - off = (unsigned long)prom_init; - max = off | ((128 << 20) - 1); - for (mem = (1 << 20); mem < (128 << 20); mem += (1 << 20)) { - if ((off + mem) > max) { - mem = (128 << 20); + + /* Physical address, without mapping to any kernel segment */ + off = CPHYSADDR((unsigned long)prom_init); + + /* Accessing memory after 128 MiB will cause an exception */ + max = 128 << 20; + + for (mem = 1 << 20; mem < max; mem += 1 << 20) { + /* Loop condition may be not enough, off may be over 1 MiB */ + if (off + mem >= max) { + mem = max; printk(KERN_DEBUG "assume 128MB RAM\n"); break; } diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c index a8b5408dd349..da4cdb16844e 100644 --- a/arch/mips/bcm47xx/sprom.c +++ b/arch/mips/bcm47xx/sprom.c @@ -168,6 +168,7 @@ static void nvram_read_alpha2(const char *prefix, const char *name, static void bcm47xx_fill_sprom_r1234589(struct ssb_sprom *sprom, const char *prefix, bool fallback) { + nvram_read_u16(prefix, NULL, "devid", &sprom->dev_id, 0, fallback); nvram_read_u8(prefix, NULL, "ledbh0", &sprom->gpio0, 0xff, fallback); nvram_read_u8(prefix, NULL, "ledbh1", &sprom->gpio1, 0xff, fallback); nvram_read_u8(prefix, NULL, "ledbh2", &sprom->gpio2, 0xff, fallback); |