[U-Boot] hush saveenv problem

[Alex Zeffertt]

Hi list,

I've enabled hush on my openrd based board because I need the "test"
command to choose how to boot (see patch below).

When I start u-boot for the first time I get the expected

          "*** Warning - bad CRC, using default environment"

output, and everything works fine.  However, if I run "saveenv" and
then power cycle the board it hangs with no output.
I have checked that "saveenv" does create a default environment at
0x60000 exactly as expected (i.e. it places a 4 byte CRC followed by a
load of ASCII characters.)
I have also checked that no u-boot code between 0x0 and 0x60000 gets altered.

I have no idea why hush + saveenv causes the board to hang at the next
power cycle.  This problem only occurs when the hush shell is
configured.

Thanks in advance for any help,

Alex Zeffertt


----------------------------------------------------------
diff --git a/include/configs/mv-common.h b/include/configs/mv-common.h
index 3f5fcc6..c859744 100644
--- a/include/configs/mv-common.h
+++ b/include/configs/mv-common.h
@@ -84,6 +84,8 @@
 #define CONFIG_INITRD_TAG      1       /* enable INITRD tag */
 #define CONFIG_SETUP_MEMORY_TAGS 1     /* enable memory tag */

+#define CONFIG_SYS_HUSH_PARSER 1               /* use "hush" command
parser    */
+#define CONFIG_SYS_PROMPT_HUSH_PS2     "> "
 #define        CONFIG_SYS_PROMPT       "Marvell>> "    /* Command Prompt */
 #define        CONFIG_SYS_CBSIZE       1024    /* Console I/O Buff Size */
 #define        CONFIG_SYS_PBSIZE       (CONFIG_SYS_CBSIZE \