| config CMD_CROS_EC |
| bool "Enable crosec command" |
| depends on CROS_EC |
| help |
| Enable command-line access to the Chrome OS EC (Embedded |
| Controller). This provides the 'crosec' command which has |
| a number of sub-commands for performing EC tasks such as |
| updating its flash, accessing a small saved context area |
| and talking to the I2C bus behind the EC (if there is one). |
| |
| config CROS_EC |
| bool "Enable Chrome OS EC" |
| help |
| Enable access to the Chrome OS EC. This is a separate |
| microcontroller typically available on a SPI bus on Chromebooks. It |
| provides access to the keyboard, some internal storage and may |
| control access to the battery and main PMIC depending on the |
| device. You can use the 'crosec' command to access it. |
| |
| config CROS_EC_I2C |
| bool "Enable Chrome OS EC I2C driver" |
| depends on CROS_EC |
| help |
| Enable I2C access to the Chrome OS EC. This is used on older |
| ARM Chromebooks such as snow and spring before the standard bus |
| changed to SPI. The EC will accept commands across the I2C using |
| a special message protocol, and provide responses. |
| |
| config CROS_EC_LPC |
| bool "Enable Chrome OS EC LPC driver" |
| depends on CROS_EC |
| help |
| Enable I2C access to the Chrome OS EC. This is used on x86 |
| Chromebooks such as link and falco. The keyboard is provided |
| through a legacy port interface, so on x86 machines the main |
| function of the EC is power and thermal management. |
| |
| config CROS_EC_SPI |
| bool "Enable Chrome OS EC SPI driver" |
| depends on CROS_EC |
| help |
| Enable SPI access to the Chrome OS EC. This is used on newer |
| ARM Chromebooks such as pit, pi and nyan-big. The SPI interface |
| provides a faster and more robust interface than I2C but the bugs |
| are less interesting. |
| |
| config DM_CROS_EC |
| bool "Enable Driver Model for Chrome OS EC" |
| depends on DM |
| help |
| Enable driver model for the Chrome OS EC interface. This |
| allows the cros_ec SPI driver to operate with CONFIG_DM_SPI |
| but otherwise makes few changes. Since cros_ec also supports |
| LPC (which doesn't support driver model yet), a full |
| conversion is not yet possible. |
| |
| config CONFIG_FSL_SEC_MON |
| bool "Enable FSL SEC_MON Driver" |
| help |
| Freescale Security Monitor block is responsible for monitoring |
| system states. |
| Security Monitor can be transitioned on any security failures, |
| like software violations or hardware security violations. |
