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authorHeiko Schocher <hs@denx.de>2014-05-28 11:33:33 +0200
committerTom Rini <trini@ti.com>2014-06-05 14:44:56 -0400
commit21d29f7f9f4888a4858b58b368ae7cf8783a6ebf (patch)
treeb6a50204d2e1af557756d43adbb54a60ca8ff78f /README
parent5f65826b1bbe155d839db7c92dca4653f0dcf025 (diff)
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bootm: make use of legacy image format configurable
make the use of legacy image format configurable through the config define CONFIG_IMAGE_FORMAT_LEGACY. When relying on signed FIT images with required signature check the legacy image format should be disabled. Therefore introduce this new define and enable legacy image format if CONFIG_FIT_SIGNATURE is not set. If CONFIG_FIT_SIGNATURE is set disable per default the legacy image format. Signed-off-by: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Lars Steubesand <lars.steubesand@philips.com> Cc: Mike Pearce <mike@kaew.be> Cc: Wolfgang Denk <wd@denx.de> Cc: Tom Rini <trini@ti.com> Cc: Michal Simek <monstr@monstr.eu> Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'README')
-rw-r--r--README18
1 files changed, 18 insertions, 0 deletions
diff --git a/README b/README
index 256d6ecc65..a248ab5d39 100644
--- a/README
+++ b/README
@@ -3200,6 +3200,19 @@ FIT uImage format:
-150 common/cmd_nand.c Incorrect FIT image format
151 common/cmd_nand.c FIT image format OK
+- legacy image format:
+ CONFIG_IMAGE_FORMAT_LEGACY
+ enables the legacy image format support in U-Boot.
+
+ Default:
+ enabled if CONFIG_FIT_SIGNATURE is not defined.
+
+ CONFIG_DISABLE_IMAGE_LEGACY
+ disable the legacy image format
+
+ This define is introduced, as the legacy image format is
+ enabled per default for backward compatibility.
+
- FIT image support:
CONFIG_FIT
Enable support for the FIT uImage format.
@@ -3216,6 +3229,11 @@ FIT uImage format:
using a hash signed and verified using RSA. See
doc/uImage.FIT/signature.txt for more details.
+ WARNING: When relying on signed FIT images with required
+ signature check the legacy image format is default
+ disabled. If a board need legacy image format support
+ enable this through CONFIG_IMAGE_FORMAT_LEGACY
+
- Standalone program support:
CONFIG_STANDALONE_LOAD_ADDR
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