microblaze: Make room for malloc before ELF

Create space below u-boot binary for early malloc.
It means memory layout is stack grows down, space for early malloc,
u-boot code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/include/configs/microblaze-generic.h b/include/configs/microblaze-generic.h
index 06f6ed1fc0c2aa3f9d996e153d791a6b72a76fa6..a48c8d60948e56210004c7f210e4c8086404cc8b 100644 (file)
--- a/include/configs/microblaze-generic.h
+++ b/include/configs/microblaze-generic.h
@@ -121,7 +121,8 @@
 #endif
 
 /* Stack location before relocation */
-#define CONFIG_SYS_INIT_SP_OFFSET      CONFIG_SYS_TEXT_BASE
+#define CONFIG_SYS_INIT_SP_OFFSET      (CONFIG_SYS_TEXT_BASE - \
+                                        CONFIG_SYS_MALLOC_F_LEN)
 
 /*
  * CFI flash memory layout - Example