1# 2# Multifunction miscellaneous devices 3# 4 5menu "Multifunction device drivers" 6 7config CMD_CROS_EC 8 bool "Enable crosec command" 9 depends on CROS_EC 10 help 11 Enable command-line access to the Chrome OS EC (Embedded 12 Controller). This provides the 'crosec' command which has 13 a number of sub-commands for performing EC tasks such as 14 updating its flash, accessing a small saved context area 15 and talking to the I2C bus behind the EC (if there is one). 16 17config CROS_EC 18 bool "Enable Chrome OS EC" 19 help 20 Enable access to the Chrome OS EC. This is a separate 21 microcontroller typically available on a SPI bus on Chromebooks. It 22 provides access to the keyboard, some internal storage and may 23 control access to the battery and main PMIC depending on the 24 device. You can use the 'crosec' command to access it. 25 26config CROS_EC_I2C 27 bool "Enable Chrome OS EC I2C driver" 28 depends on CROS_EC 29 help 30 Enable I2C access to the Chrome OS EC. This is used on older 31 ARM Chromebooks such as snow and spring before the standard bus 32 changed to SPI. The EC will accept commands across the I2C using 33 a special message protocol, and provide responses. 34 35config CROS_EC_LPC 36 bool "Enable Chrome OS EC LPC driver" 37 depends on CROS_EC 38 help 39 Enable I2C access to the Chrome OS EC. This is used on x86 40 Chromebooks such as link and falco. The keyboard is provided 41 through a legacy port interface, so on x86 machines the main 42 function of the EC is power and thermal management. 43 44config CROS_EC_SANDBOX 45 bool "Enable Chrome OS EC sandbox driver" 46 depends on CROS_EC && SANDBOX 47 help 48 Enable a sandbox emulation of the Chrome OS EC. This supports 49 keyboard (use the -l flag to enable the LCD), verified boot context, 50 EC flash read/write/erase support and a few other things. It is 51 enough to perform a Chrome OS verified boot on sandbox. 52 53config CROS_EC_SPI 54 bool "Enable Chrome OS EC SPI driver" 55 depends on CROS_EC 56 help 57 Enable SPI access to the Chrome OS EC. This is used on newer 58 ARM Chromebooks such as pit, pi and nyan-big. The SPI interface 59 provides a faster and more robust interface than I2C but the bugs 60 are less interesting. 61 62config FSL_SEC_MON 63 bool "Enable FSL SEC_MON Driver" 64 help 65 Freescale Security Monitor block is responsible for monitoring 66 system states. 67 Security Monitor can be transitioned on any security failures, 68 like software violations or hardware security violations. 69 70config PCA9551_LED 71 bool "Enable PCA9551 LED driver" 72 help 73 Enable driver for PCA9551 LED controller. This controller 74 is connected via I2C. So I2C needs to be enabled. 75 76config PCA9551_I2C_ADDR 77 hex "I2C address of PCA9551 LED controller" 78 depends on PCA9551_LED 79 default 0x60 80 help 81 The I2C address of the PCA9551 LED controller. 82 83config RESET 84 bool "Enable support for reset drivers" 85 depends on DM 86 help 87 Enable reset drivers which can be used to reset the CPU or board. 88 Each driver can provide a reset method which will be called to 89 effect a reset. The uclass will try all available drivers when 90 reset_walk() is called. 91 92endmenu 93