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From 4955e853853d6056363b9ed71bacedc214f96884 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Thu, 23 Jan 2014 13:17:03 -0700
Subject: [PATCH 08/13] ARM: tegra: rework boot scripts
Update the common Tegra boot scripts in the default environment to
a) Make use of the new "exists" shell command to avoid some error
messges.
b) Allow booting using the sysboot command and extlinux.conf. This
allows easy creation of boot menus, and provides a simple interface
for distros to parameterize/configure the boot process.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
include/configs/tegra-common-post.h | 39 ++++++++++++++++++++++++++++---------
1 file changed, 30 insertions(+), 9 deletions(-)
diff --git a/include/configs/tegra-common-post.h b/include/configs/tegra-common-post.h
index a3242fe..493f6df 100644
--- a/include/configs/tegra-common-post.h
+++ b/include/configs/tegra-common-post.h
@@ -69,20 +69,41 @@
#define BOOTCMDS_COMMON \
"rootpart=1\0" \
\
+ "do_script_boot=" \
+ "load ${devtype} ${devnum}:${rootpart} " \
+ "${scriptaddr} ${prefix}${script}; " \
+ "source ${scriptaddr}\0" \
+ \
"script_boot=" \
- "if load ${devtype} ${devnum}:${rootpart} " \
- "${scriptaddr} ${prefix}${script}; then " \
- "echo ${script} found! Executing ...;" \
- "source ${scriptaddr};" \
- "fi;\0" \
+ "for script in ${boot_scripts}; do " \
+ "if exists ${devtype} ${devnum}:${rootpart} " \
+ "${prefix}${script}; then " \
+ "echo Found U-Boot script " \
+ "${prefix}${script}; " \
+ "run do_script_boot;" \
+ "echo SCRIPT FAILED; continuing...; " \
+ "fi; " \
+ "done\0" \
+ \
+ "do_sysboot_boot=" \
+ "sysboot ${devtype} ${devnum}:${rootpart} any " \
+ "${scriptaddr} ${prefix}extlinux.conf\0" \
+ \
+ "sysboot_boot=" \
+ "if exists ${devtype} ${devnum}:${rootpart} " \
+ "${prefix}extlinux.conf; then " \
+ "echo Found extlinux config " \
+ "${prefix}extlinux.conf; " \
+ "run do_sysboot_boot;" \
+ "echo SCRIPT FAILED; continuing...; " \
+ "fi\0" \
\
"scan_boot=" \
"echo Scanning ${devtype} ${devnum}...; " \
"for prefix in ${boot_prefixes}; do " \
- "for script in ${boot_scripts}; do " \
- "run script_boot; " \
- "done; " \
- "done;\0" \
+ "run script_boot; " \
+ "run sysboot_boot; " \
+ "done\0" \
\
"boot_targets=" \
BOOT_TARGETS_MMC " " \
--
1.8.5.3
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