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7be7e16cbb
Currently, uboot-sign.bbclass only supports to create Image Tree Source(ITS)
for "u-boot" and "flat_dt". However, users may want to add their private
images into u-boot FIT image for specific application and purpose.
To make this bbclass more flexible and support to add users specific snippet
ITS, creates a new "UBOOT_FIT_USER_SETTINGS" variable. Users can add their
specific snippet ITS into this variable.
Example:
```
UBOOT_FIT_MY_ITS = '\
myfw {\n\
description = \"MY Firmware\";\n\
data = /incbin/(\"myfw.bin\");\n\
type = \"mytype\";\n\
arch = \"myarch\";\n\
os = \"myos\";\n\
load = <0xb2000000>;\n\
entry = <0xb2000000>;\n\
compression = \"none\";\n\
};\n\
'
UBOOT_FIT_USER_SETTINGS = "${UBOOT_FIT_MY_ITS}"
```
The generated ITS
```
myfw {
description = "My Firmware";
data = /incbin/("myfw.bin");
type = "mytype";
arch = "myarch";
os = "myos";
load = <0xb2000000>;
entry = <0xb2000000>;
compression = "none";
};
```
Add a variable "UBOOT_FIT_CONF_USER_LOADABLES" to load users specific images
and it is an empty by default.
(From OE-Core rev: c12e013453689697a8680f1c7de3e625a0ff28ec)
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>