diff options
author | Simon Glass <sjg@chromium.org> | 2015-02-13 19:20:47 (GMT) |
---|---|---|
committer | Simon Glass <sjg@chromium.org> | 2015-02-19 13:19:18 (GMT) |
commit | 6fb9ac15ebac4bcc4864be7958bf9b2b2b7420de (patch) | |
tree | 3fc5de24efde89c68df37bfe8f119958b4789211 /drivers/misc/Kconfig | |
parent | 1320112c8aa58345d71a5a46f3bf6a52589f1f2b (diff) | |
download | u-boot-fsl-qoriq-6fb9ac15ebac4bcc4864be7958bf9b2b2b7420de.tar.xz |
dm: cros_ec: Convert to Kconfig
Since both I2C and SPI are converted to Kconfig, we can convert cros_ec
to Kconfig for these buses.
LPC will need to wait until driver mode PCI is available.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/misc/Kconfig')
-rw-r--r-- | drivers/misc/Kconfig | 48 |
1 files changed, 47 insertions, 1 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 813d1c2..0df25c3 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -1,3 +1,49 @@ +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 @@ -5,5 +51,5 @@ config DM_CROS_EC 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 - I2C and LPC (which don't support driver model yet), a full + LPC (which doesn't support driver model yet), a full conversion is not yet possible. |