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authorAaron Durbin <adurbin@chromium.org>2013-01-08 10:10:33 -0600
committerRonald G. Minnich <rminnich@gmail.com>2013-03-16 04:58:18 +0100
commit5c66f08a3a901eb3e1fe6cfd7f22b90cecbf3cf7 (patch)
treed31c9f84512dbad8cfdd11f1c470c82bfbf6a705 /src
parentc2c97231e3f36e9d3f1ee8de2394220ec7beadeb (diff)
haswell: don't add a 0-sized memory range resource
It's possible that TOUUD can be 4GiB in a small physical memory configuration. Therefore, don't add a 0-size memory range resouce in that case. Change-Id: I016616a9d9d615417038e9c847c354db7d872819 Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/2691 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/northbridge/intel/haswell/northbridge.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/northbridge/intel/haswell/northbridge.c b/src/northbridge/intel/haswell/northbridge.c
index d6869c1124..0d611fc105 100644
--- a/src/northbridge/intel/haswell/northbridge.c
+++ b/src/northbridge/intel/haswell/northbridge.c
@@ -397,7 +397,8 @@ static void mc_add_dram_resources(device_t dev)
/* 4GiB -> TOUUD */
base_k = 4096 * 1024; /* 4GiB */
size_k = (unsigned long)(mc_values[TOUUD_REG] >> 10) - base_k;
- ram_resource(dev, index++, base_k, size_k);
+ if (size_k > 0)
+ ram_resource(dev, index++, base_k, size_k);
mmio_resource(dev, index++, legacy_hole_base_k, legacy_hole_size_k);
#if CONFIG_CHROMEOS_RAMOOPS