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fpga/fw: Resize ROM and FW_RAM, add RESETINFO partition

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In order to be able to leave data for firmware signalling the
intention with a reset or to leave data for the next app in a chain of
apps, we introduce a part of FW_RAM that can be used to store this
data. In order to do this, we:

- Change size of ROM from 6 KB to 8 KB.
- Change size of FW_RAM, from 2 KB to 4 KB.
- Add RESETINFO memory partition inside FW_RAM.
- Add generation of map file.
- Change CFLAGS from using -O2 to using -Os.
- Update address ranges for valid access to ROM and FW_RAM.
- Move stack to be located before data+bss and the RESETINFO data
  above them. This also means we introduce hardware stack overflow
  protection through the Security Monitor.
- Revise firmware README to the new use of FW_RAM.
This commit is contained in:
Jonas Thörnblad 2025-02-19 16:45:05 +01:00 • committed by Michael Cardell Widerkrantz
parent 3126a9c51e
commit 8f2f312531
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GPG key ID: D3DB3DDF57E704E5
13 changed files with 310 additions and 77 deletions
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hw/application_fpga/application_fpga.bin.sha256
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93e311e4bfa7e2f8c3c89f194b5fbe7b83eff81e6d32fd73c8859d5d76324b48 application_fpga.bin
5287588b9929a5709859e5fd85cc585dda6524821740bd06829258be7e9fad7d application_fpga.bin