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Nikolai Artemiev 29a3a09f91 writeprotect: Add function to get register values and WP bit masks
Add a new wp_cfg_to_reg_values() function that takes a generic wp_cfg
instance and returns the chip-specific values that need to be written to
the chip's registers to enable the specified protection range/mode.

The function returns three values for each chip register:
- reg_values[reg]  - Value writeprotect will write to reg
- bit_masks[reg]   - Bit mask for WP-related bits in reg
- write_masks[reg] - Bit mask for writable WP-related bits in reg
                     (i.e. the ones writeprotect will try to write)

BUG=b:260019525,b:259013033,260020006
BRANCH=none
TEST=ninja test

Change-Id: Ib2a47153b230c9f82bb4eca357c335f2abbacc20
Signed-off-by: Nikolai Artemiev <nartemiev@google.com>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/69847
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
2023-03-03 05:52:20 +00:00
..
2022-12-08 23:17:18 +00:00