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These USB type-C accessories don't have a write-protect GPIO. Add a configure flag (CONFIG_WP_ALWAYS) to force the flash write-protection on the dongles. Also set the read protection (by elevating RDP to level 1), so trying to unprotect the flash will trigger a full erase. Signed-off-by: Vincent Palatin <vpalatin@chromium.org> BRANCH=samus BUG=chrome-os-partner:35088 TEST=boot Hoho, check the flash OBR and WRPR registers: "rw 0x4002201c" / "rw 0x40022020" and the option bytes write-protect bits: "rw 0x1FFFF808" dump the logical state with "flashinfo" command. > rw 0x4002201c read 0x40022020 = 0xffff0002 > rw 0x40022020 read 0x40022020 = 0xffff0000 > rw 0x1FFFF808 read 0x1ffff808 = 0xff00ff00 > flashinfo Physical: 128 KB Usable: 128 KB Write: 2 B (ideal 2 B) Erase: 2048 B (to 1-bits) Protect: 4096 B Flags: wp_gpio_asserted ro_at_boot ro_now Protected now: YYYYYYYY YYYYYYYY ........ ........ Change-Id: I45bbc0bce40ecc174b6b8a1ebacf4f53d2fd372d Reviewed-on: https://chromium-review.googlesource.com/238893 Trybot-Ready: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org> Tested-by: Vincent Palatin <vpalatin@chromium.org> Reviewed-by: Todd Broch <tbroch@chromium.org> Tested-by: Todd Broch <tbroch@chromium.org>