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authorJoe Hershberger <joe.hershberger@ni.com>2012-08-17 10:34:36 +0000
committerGerald Van Baren <gvb@unssw.com>2012-10-15 19:20:16 -0400
commitf0a29d43313c9d0d9091aeae175bd7e8e7ac6124 (patch)
tree72e7da4c7c2d25397bbd9280d80c43a2beb676fb /common
parent367e12597617b2581eb72b3676c6cb86822268b5 (diff)
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fdt: Limit printed hex in fdt print and list commands
Prevent printing the entire image in a itb. It is most likely unhelpful to have the hex of the entire image scroll for minutes on your slow serial console. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'common')
-rw-r--r--common/cmd_fdt.c36
1 files changed, 24 insertions, 12 deletions
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index e2225c4..699441b5 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -35,6 +35,9 @@
#define MAX_LEVEL 32 /* how deeply nested we will go */
#define SCRATCHPAD 1024 /* bytes of scratchpad memory */
+#ifndef CONFIG_CMD_FDT_MAX_DUMP
+#define CONFIG_CMD_FDT_MAX_DUMP 64
+#endif
/*
* Global data (for the gd->bd)
@@ -672,19 +675,28 @@ static void print_data(const void *data, int len)
}
if ((len %4) == 0) {
- const u32 *p;
-
- printf("<");
- for (j = 0, p = data; j < len/4; j ++)
- printf("0x%x%s", fdt32_to_cpu(p[j]), j < (len/4 - 1) ? " " : "");
- printf(">");
+ if (len > CONFIG_CMD_FDT_MAX_DUMP)
+ printf("* 0x%08x [0x%08x]", (unsigned int)data, len);
+ else {
+ const u32 *p;
+
+ printf("<");
+ for (j = 0, p = data; j < len/4; j++)
+ printf("0x%08x%s", fdt32_to_cpu(p[j]),
+ j < (len/4 - 1) ? " " : "");
+ printf(">");
+ }
} else { /* anything else... hexdump */
- const u8 *s;
-
- printf("[");
- for (j = 0, s = data; j < len; j++)
- printf("%02x%s", s[j], j < len - 1 ? " " : "");
- printf("]");
+ if (len > CONFIG_CMD_FDT_MAX_DUMP)
+ printf("* 0x%08x [0x%08x]", (unsigned int)data, len);
+ else {
+ const u8 *s;
+
+ printf("[");
+ for (j = 0, s = data; j < len; j++)
+ printf("%02x%s", s[j], j < len - 1 ? " " : "");
+ printf("]");
+ }
}
}