diff options
| author | Shawn Nematbakhsh <shawnn@chromium.org> | 2014-03-14 14:06:45 -0700 |
|---|---|---|
| committer | Marc Jones <marc.jones@se-eng.com> | 2014-10-28 17:56:11 +0100 |
| commit | 565d409753a9878fef19eedc4a916d1efc3026a0 (patch) | |
| tree | 2a41d612c0a295e0ccace1cbc1ae3f1a25e41942 /src/soc/intel/baytrail/romstage/romstage.c | |
| parent | 4b90b79922396c722a156c6ade8dfa43637ba163 (diff) | |
baytrail: romstage: Add function to check SW WP status for vboot
Implement vboot_get_sw_write_protect, which returns the FW SPI ROM SW WP
status.
BUG=chrome-os-partner:26777
TEST=Manual on Rambi with all patches in sequence:
`crossystem sw_wpsw_boot` prints 0
`flashrom --wp-enable` + reboot
`crossystem sw_wpsw_boot` prints 1
BRANCH=Rambi
Original-Change-Id: I5da35c1b2d25b8679bf0084af65d08de224387f8
Original-Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/190097
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
(cherry picked from commit 5bba447654417c42952c49542ed047b4867d04d1)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: I739cbb8fca5f02462cf78c81f9b364aabfd3fe86
Reviewed-on: http://review.coreboot.org/7211
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc/intel/baytrail/romstage/romstage.c')
| -rw-r--r-- | src/soc/intel/baytrail/romstage/romstage.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/soc/intel/baytrail/romstage/romstage.c b/src/soc/intel/baytrail/romstage/romstage.c index 1c08f339fd..b69b532e31 100644 --- a/src/soc/intel/baytrail/romstage/romstage.c +++ b/src/soc/intel/baytrail/romstage/romstage.c @@ -393,3 +393,12 @@ void ramstage_cache_invalid(struct ramstage_cache *cache) cold_reset(); #endif } + +#if CONFIG_CHROMEOS +int vboot_get_sw_write_protect(void) +{ + u8 status; + /* Return unprotected status if status read fails. */ + return (early_spi_read_wpsr(&status) ? 0 : !!(status & 0x80)); +} +#endif |