diff options
Diffstat (limited to 'src/security/lockdown/Kconfig')
| -rw-r--r-- | src/security/lockdown/Kconfig | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/security/lockdown/Kconfig b/src/security/lockdown/Kconfig index 30b5237ffc..97094ff2e7 100644 --- a/src/security/lockdown/Kconfig +++ b/src/security/lockdown/Kconfig @@ -82,3 +82,31 @@ config BOOTMEDIA_LOCK_IN_VERSTAGE possible. This option prevents using write protecting facilities in ramstage, like the MRC cache for example. Use this option if you don't trust code running after verstage. + +choice + prompt "SPI Flash write protection duration" + default BOOTMEDIA_SPI_LOCK_REBOOT + depends on BOOTMEDIA_LOCK_CHIP + depends on BOOT_DEVICE_SPI_FLASH + +config BOOTMEDIA_SPI_LOCK_REBOOT + bool "Lock SPI flash until next reboot" + help + The SPI chip is locked until power is removed and re-applied. + Supported by Winbond parts. + +config BOOTMEDIA_SPI_LOCK_PIN + bool "Lock SPI flash using WP# pin" + help + The SPI chip is locked using a non-volatile configuration bit. Writes + are only possible if the WP# is not asserted. Supported by Winbond + and Macronix parts. + +config BOOTMEDIA_SPI_LOCK_PERMANENT + bool "Lock SPI flash permanently" + help + The SPI chip is permanently locked using a non-volatile configuration + bit. No writes are ever possible again after we perform the lock. + Supported by Winbond parts. + +endchoice |