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-rw-r--r--include/system-constants.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/system-constants.h b/include/system-constants.h
index 4fd24f4..de66fec 100644
--- a/include/system-constants.h
+++ b/include/system-constants.h
@@ -3,4 +3,20 @@
#ifndef __SYSTEM_CONSTANTS_H__
#define __SYSTEM_CONSTANTS_H__
+/*
+ * The most common case for our initial stack pointer address is to
+ * say that we have defined a static intiial ram address location and
+ * size and from that we subtract the generated global data size.
+ */
+#ifdef CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR
+#define SYS_INIT_SP_ADDR CONFIG_CUSTOM_SYS_INIT_SP_ADDR
+#else
+#ifdef CONFIG_MIPS
+#define SYS_INIT_SP_ADDR (CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET)
+#else
+#define SYS_INIT_SP_ADDR \
+ (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#endif
+#endif
+
#endif