northbridge/gm45: document that raminit doesn't support mirrored ranks
Change-Id: I8a66a1355974f6771c5e4bae0dc60da2447122d1
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33294
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/northbridge/intel/gm45/raminit.c b/src/northbridge/intel/gm45/raminit.c
index 2826d74..b7ccdec 100644
--- a/src/northbridge/intel/gm45/raminit.c
+++ b/src/northbridge/intel/gm45/raminit.c
@@ -1593,7 +1593,8 @@
int ch, r;
FOR_EACH_POPULATED_RANK(dimms, ch, r) {
/* We won't do this in dual-interleaved mode,
- so don't care about the offset. */
+ so don't care about the offset.
+ Mirrored ranks aren't taken into account here. */
const u32 rankaddr = raminit_get_rank_addr(ch, r);
printk(BIOS_DEBUG, "JEDEC init @0x%08x\n", rankaddr);
MCHBAR32(DCC_MCHBAR) = (MCHBAR32(DCC_MCHBAR) & ~DCC_SET_EREG_MASK) | DCC_SET_EREGx(2);