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-rw-r--r--src/soc/intel/quark/memmap.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/soc/intel/quark/memmap.c b/src/soc/intel/quark/memmap.c
index 53a1b24094..d67856cc74 100644
--- a/src/soc/intel/quark/memmap.c
+++ b/src/soc/intel/quark/memmap.c
@@ -26,7 +26,8 @@ void *cbmem_top(void)
top_of_memory <<= 16;
/* Reserve 64 KiB for RMU firmware */
- top_of_memory -= 0x10000;
+ if (top_of_memory)
+ top_of_memory -= 0x10000;
/* Return the top of memory */
return (void *)top_of_memory;