projects / people / ms / u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 6fb9ac15 SG |
1 | config CMD_CROS_EC |
| 2 | bool "Enable crosec command" | |
| 3 | depends on CROS_EC | |
| 4 | help | |
| 5 | Enable command-line access to the Chrome OS EC (Embedded | |
| 6 | Controller). This provides the 'crosec' command which has | |
| 7 | a number of sub-commands for performing EC tasks such as | |
| 8 | updating its flash, accessing a small saved context area | |
| 9 | and talking to the I2C bus behind the EC (if there is one). | |
| 10 | ||
| 11 | config CROS_EC | |
| 12 | bool "Enable Chrome OS EC" | |
| 13 | help | |
| 14 | Enable access to the Chrome OS EC. This is a separate | |
| 15 | microcontroller typically available on a SPI bus on Chromebooks. It | |
| 16 | provides access to the keyboard, some internal storage and may | |
| 17 | control access to the battery and main PMIC depending on the | |
| 18 | device. You can use the 'crosec' command to access it. | |
| 19 | ||
| 20 | config CROS_EC_I2C | |
| 21 | bool "Enable Chrome OS EC I2C driver" | |
| 22 | depends on CROS_EC | |
| 23 | help | |
| 24 | Enable I2C access to the Chrome OS EC. This is used on older | |
| 25 | ARM Chromebooks such as snow and spring before the standard bus | |
| 26 | changed to SPI. The EC will accept commands across the I2C using | |
| 27 | a special message protocol, and provide responses. | |
| 28 | ||
| 29 | config CROS_EC_LPC | |
| 30 | bool "Enable Chrome OS EC LPC driver" | |
| 31 | depends on CROS_EC | |
| 32 | help | |
| 33 | Enable I2C access to the Chrome OS EC. This is used on x86 | |
| 34 | Chromebooks such as link and falco. The keyboard is provided | |
| 35 | through a legacy port interface, so on x86 machines the main | |
| 36 | function of the EC is power and thermal management. | |
| 37 | ||
| 38 | config CROS_EC_SPI | |
| 39 | bool "Enable Chrome OS EC SPI driver" | |
| 40 | depends on CROS_EC | |
| 41 | help | |
| 42 | Enable SPI access to the Chrome OS EC. This is used on newer | |
| 43 | ARM Chromebooks such as pit, pi and nyan-big. The SPI interface | |
| 44 | provides a faster and more robust interface than I2C but the bugs | |
| 45 | are less interesting. | |
| 46 | ||
| fe78378d | 47 | config CONFIG_FSL_SEC_MON |
| 48 | bool "Enable FSL SEC_MON Driver" | |
| 49 | help | |
| 50 | Freescale Security Monitor block is responsible for monitoring | |
| 51 | system states. | |
| 52 | Security Monitor can be transitioned on any security failures, | |
| 53 | like software violations or hardware security violations. |