summaryrefslogtreecommitdiff
path: root/doc
diff options
context:
space:
mode:
authorStefan Roese <sr@denx.de>2006-07-27 16:14:05 +0200
committerStefan Roese <sr@denx.de>2006-07-27 16:14:05 +0200
commit193dd958344f9c27ed026d2e3db2a1a0a9eb5631 (patch)
treef58d0308fab3f95ed00cda6ddba34572cb722281 /doc
parent3ca9122feccee939904f1dbc8a422cfb1533785f (diff)
downloadu-boot-imx-193dd958344f9c27ed026d2e3db2a1a0a9eb5631.zip
u-boot-imx-193dd958344f9c27ed026d2e3db2a1a0a9eb5631.tar.gz
u-boot-imx-193dd958344f9c27ed026d2e3db2a1a0a9eb5631.tar.bz2
AMCC bamboo (440EP) U-Boot image reduced to 384kbyte
Please see doc/README.bamboo for details. Patch by Stefan Roese, 27 Jul 2006
Diffstat (limited to 'doc')
-rw-r--r--doc/README.bamboo15
1 files changed, 15 insertions, 0 deletions
diff --git a/doc/README.bamboo b/doc/README.bamboo
new file mode 100644
index 0000000..b50be01
--- /dev/null
+++ b/doc/README.bamboo
@@ -0,0 +1,15 @@
+The configuration for the AMCC 440EP eval board "Bamboo" was changed
+to only use 384 kbytes of FLASH for the U-Boot image. This way the
+redundant environment can be saved in the remaining 2 sectors of the
+same flash chip.
+
+Caution: With an upgrade from an earlier U-Boot version the current
+environment will be erased since the environment is now saved in
+different sectors. By using the following command the environment can
+be saved after upgrading the U-Boot image and *before* resetting the
+board:
+
+setenv recover_env 'prot off FFF80000 FFF9FFFF;era FFF80000 FFF9FFFF;' \
+ 'cp.b FFF60000 FFF80000 20000'
+
+2006-07-27, Stefan Roese <sr@denx.de>