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tool: Mention preloaded app and its signature in tkeyimage README

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Mikael Ågren 2025-12-03 08:44:01 +01:00
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15
hw/application_fpga/tools/tkeyimage/README.md
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@ -8,6 +8,8 @@ the TKey.
Add `-f` to parse or generate an entire flash image file. Add `-f` to parse or generate an entire flash image file.
For more options see `tkeyimage -h`.
## Usage ## Usage
### Inspect a partition table dump ### Inspect a partition table dump
@ -85,6 +87,12 @@ With an app in slot 0, filling in the size in the partition table:
$ ./tkeyimage -o partition.bin -app0 ../../fw/testloadapp/testloadapp.bin $ ./tkeyimage -o partition.bin -app0 ../../fw/testloadapp/testloadapp.bin
``` ```
With an app in slot 0 and a signed app in slot 1:
```
$ ./tkeyimage -o partition.bin -app0 app0.bin -app1 app1.bin -app1sig app1.bin.sig
```
### Generate flash image ### Generate flash image
The program can also generate an entire flash image for use either The program can also generate an entire flash image for use either
@ -112,3 +120,10 @@ $ qemu-system-riscv32 -nographic -M tk1-castor,fifo=chrid \
-bios qemu_firmware.elf -chardev pty,id=chrid -s -d guest_errors \ -bios qemu_firmware.elf -chardev pty,id=chrid -s -d guest_errors \
-drive file=flash.bin,if=mtd,format=raw,index=0 -drive file=flash.bin,if=mtd,format=raw,index=0
``` ```
### Signatures
The signature file format is similar to that of `tkey-sign`. Note that
it is up to the app that will verify the signature to specify what
signing algorithm to use. `tkeyimage` does not enforce a specific
algorithm.