From 565d409753a9878fef19eedc4a916d1efc3026a0 Mon Sep 17 00:00:00 2001 From: Shawn Nematbakhsh Date: Fri, 14 Mar 2014 14:06:45 -0700 Subject: 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 Original-Reviewed-on: https://chromium-review.googlesource.com/190097 Original-Reviewed-by: Aaron Durbin (cherry picked from commit 5bba447654417c42952c49542ed047b4867d04d1) Signed-off-by: Marc Jones Change-Id: I739cbb8fca5f02462cf78c81f9b364aabfd3fe86 Reviewed-on: http://review.coreboot.org/7211 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/soc/intel/baytrail/romstage/romstage.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'src/soc/intel/baytrail/romstage/romstage.c') 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 -- cgit v1.2.3