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

Peter Chubb
2016-08-23T00:00:22Z

The Linux-for-Tegra kernel uses a very long command line.

The default value of CONFIG_SYS_CBSIZE is too small to print out the
long command line and causes a message like:
bootarg overflow 602+0+0+1 > 512
on the console, and the board refuses to boot.

The default value of CONFIG_SYS_MAXARGS is too small to add a long
long command line, and the kernel won't boot without the complete
bootargs.

Increasing these two config options solves this problem.

(patch cherry-picked from the NVIDIA u-boot source; original author
Bryan Wu)

Signed-off-by: Bryan Wu <pengw@nvidia.com>
Signed-off-by: Peter Chubb <Peter.Chubb@data61.csiro.au>
---
include/configs/tegra-common.h | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/configs/tegra-common.h b/include/configs/tegra-common.h
index 7b0940a..6bfd7b2 100644
--- a/include/configs/tegra-common.h
+++ b/include/configs/tegra-common.h
@@ -76,11 +76,12 @@
* 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 32 /* 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)

--
2.9.3

--
Dr Peter Chubb Tel: +61 2 9490 5852 http://www.data61.csiro.au
http://ts.data61.csiro.au Software Systems Research Group/NICTA/Data61