[U-Boot] [PATCH 2/6] fdt: Limit printed hex in fdt print and list commands
Joe Hershberger
joe.hershberger at ni.com
Fri Aug 17 22:34:36 CEST 2012
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 at ni.com>
---
common/cmd_fdt.c | 36 ++++++++++++++++++++++++------------
1 file changed, 24 insertions(+), 12 deletions(-)
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index 9a5c53e..a008426 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)
@@ -661,19 +664,28 @@ 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("]");
+ }
}
}
--
1.7.11.5
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