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-rw-r--r--include/configs/sandbox.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/configs/sandbox.h b/include/configs/sandbox.h
index 4de89f8879..197d8bb8ca 100644
--- a/include/configs/sandbox.h
+++ b/include/configs/sandbox.h
@@ -27,7 +27,10 @@
#define CONFIG_SYS_STDIO_DEREGISTER
-/* Number of bits in a C 'long' on this architecture */
+/*
+ * Number of bits in a C 'long' on this architecture. Set this to 32 when
+ * building on a 32-bit machine.
+ */
#define CONFIG_SANDBOX_BITS_PER_LONG 64
#define CONFIG_LMB