[U-Boot] [PATCH] ARM: tegra: increase buffer size and sys args num

Michael Scott hashcode0f at gmail.com
Fri Oct 24 20:45:31 CEST 2014


From: Bryan Wu <pengw at nvidia.com>

Tegra kernel booting needs a long bootargs command line.

Default value of CONFIG_SYS_CBSIZE is too small to printf out the
long command line and will cause system panic.

Default value of CONFIG_SYS_MAXARGS is too small to setenv bootargs
as the long command line, then kernel won't boot without the complete
bootargs.

Increase this 2 config options solve this problem.

Signed-off-by: Bryan Wu <pengw at nvidia.com>
Signed-off-by: Michael Scott <hashcode0f at gmail.com>
Cc: Tom Warren <twarren at nvidia.com>
Cc: Stephen Warren <swarren at nvidia.com>
Cc: Bryan Wu <pengw at nvidia.com>
---
 include/configs/tegra-common.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
index 5d2b12a..a6d7bf1 100644
--- a/include/configs/tegra-common.h
+++ b/include/configs/tegra-common.h
@@ -107,11 +107,11 @@
  * Increasing the size of the IO buffer as default nfsargs size is more
  *  than 256 and so it is not possible to edit it
  */
-#define CONFIG_SYS_CBSIZE		(256 * 2) /* Console I/O Buffer Size */
+#define CONFIG_SYS_CBSIZE		(1024 * 2) /* Console I/O Buffer Size */
 /* Print Buffer Size */
 #define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
 					sizeof(CONFIG_SYS_PROMPT) + 16)
-#define CONFIG_SYS_MAXARGS		16	/* max number of command args */
+#define CONFIG_SYS_MAXARGS		64	/* max number of command args */
 /* Boot Argument Buffer Size */
 #define CONFIG_SYS_BARGSIZE		(CONFIG_SYS_CBSIZE)
 
-- 
1.9.1



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