The pointer to the flash based bootargs should be a "char *", not unsigned.
Fixes:

cm41xx.c: In function ‘env_flash_cmdline’:
cm41xx.c:67: warning: pointer targets in passing argument 2 of ‘setenv’ differ 
in signedness

Signed-off-by: Greg Ungerer <greg.unge...@opengear.com>
---
 board/cm41xx/cm41xx.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/board/cm41xx/cm41xx.c b/board/cm41xx/cm41xx.c
index 02d05af..9a6d89f 100644
--- a/board/cm41xx/cm41xx.c
+++ b/board/cm41xx/cm41xx.c
@@ -46,8 +46,8 @@ DECLARE_GLOBAL_DATA_PTR;
  */
 int env_flash_cmdline (void)
 {
-       unsigned char *sp = (unsigned char *) 0x0201c020;
-       unsigned char *ep;
+       char *sp = (char *) 0x0201c020;
+       char *ep;
        int len;
 
        /* Check if "erase" push button is depressed */
-- 
1.7.4.1

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