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spl: misc: Allow misc drivers in SPL and TPL

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In some cases it is necessary to read the keyboard in early phases of
U-Boot. The cros_ec keyboard is kept in the misc directory. Update the
config to allow this.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2018-11-18 08:14:27 -07:00
parent e1a2ed7180
commit aaba703fd0
2 changed files with 77 additions and 3 deletions
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72
drivers/misc/Kconfig
View file

@ -13,6 +13,24 @@ config MISC
set of generic read, write and ioctl methods may be used to set of generic read, write and ioctl methods may be used to
access the device. access the device.
config SPL_MISC
bool "Enable Driver Model for Misc drivers in SPL"
depends on SPL_DM
help
Enable driver model for miscellaneous devices. This class is
used only for those do not fit other more general classes. A
set of generic read, write and ioctl methods may be used to
access the device.
config TPL_MISC
bool "Enable Driver Model for Misc drivers in TPL"
depends on TPL_DM
help
Enable driver model for miscellaneous devices. This class is
used only for those do not fit other more general classes. A
set of generic read, write and ioctl methods may be used to
access the device.
config ALTERA_SYSID config ALTERA_SYSID
bool "Altera Sysid support" bool "Altera Sysid support"
depends on MISC depends on MISC
@ -68,6 +86,24 @@ config CROS_EC
control access to the battery and main PMIC depending on the control access to the battery and main PMIC depending on the
device. You can use the 'crosec' command to access it. device. You can use the 'crosec' command to access it.
config SPL_CROS_EC
bool "Enable Chrome OS EC in SPL"
help
Enable access to the Chrome OS EC in SPL. 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 TPL_CROS_EC
bool "Enable Chrome OS EC in TPL"
help
Enable access to the Chrome OS EC in TPL. 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 config CROS_EC_I2C
bool "Enable Chrome OS EC I2C driver" bool "Enable Chrome OS EC I2C driver"
depends on CROS_EC depends on CROS_EC
@ -86,6 +122,24 @@ config CROS_EC_LPC
through a legacy port interface, so on x86 machines the main through a legacy port interface, so on x86 machines the main
function of the EC is power and thermal management. function of the EC is power and thermal management.
config SPL_CROS_EC_LPC
bool "Enable Chrome OS EC LPC driver in SPL"
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 TPL_CROS_EC_LPC
bool "Enable Chrome OS EC LPC driver in TPL"
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_SANDBOX config CROS_EC_SANDBOX
bool "Enable Chrome OS EC sandbox driver" bool "Enable Chrome OS EC sandbox driver"
depends on CROS_EC && SANDBOX depends on CROS_EC && SANDBOX
@ -95,6 +149,24 @@ config CROS_EC_SANDBOX
EC flash read/write/erase support and a few other things. It is EC flash read/write/erase support and a few other things. It is
enough to perform a Chrome OS verified boot on sandbox. enough to perform a Chrome OS verified boot on sandbox.
config SPL_CROS_EC_SANDBOX
bool "Enable Chrome OS EC sandbox driver in SPL"
depends on SPL_CROS_EC && SANDBOX
help
Enable a sandbox emulation of the Chrome OS EC in SPL. This supports
keyboard (use the -l flag to enable the LCD), verified boot context,
EC flash read/write/erase support and a few other things. It is
enough to perform a Chrome OS verified boot on sandbox.
config TPL_CROS_EC_SANDBOX
bool "Enable Chrome OS EC sandbox driver in TPL"
depends on TPL_CROS_EC && SANDBOX
help
Enable a sandbox emulation of the Chrome OS EC in TPL. This supports
keyboard (use the -l flag to enable the LCD), verified boot context,
EC flash read/write/erase support and a few other things. It is
enough to perform a Chrome OS verified boot on sandbox.
config CROS_EC_SPI config CROS_EC_SPI
bool "Enable Chrome OS EC SPI driver" bool "Enable Chrome OS EC SPI driver"
depends on CROS_EC depends on CROS_EC

8
drivers/misc/Makefile
View file

@ -4,11 +4,13 @@
# Wolfgang Denk, DENX Software Engineering, wd@denx.de. # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
obj-$(CONFIG_MISC) += misc-uclass.o obj-$(CONFIG_MISC) += misc-uclass.o
obj-$(CONFIG_$(SPL_TPL_)CROS_EC) += cros_ec.o
obj-$(CONFIG_$(SPL_TPL_)CROS_EC_SANDBOX) += cros_ec_sandbox.o
obj-$(CONFIG_$(SPL_TPL_)CROS_EC_LPC) += cros_ec_lpc.o
ifndef CONFIG_SPL_BUILD ifndef CONFIG_SPL_BUILD
obj-$(CONFIG_CROS_EC) += cros_ec.o
obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpc.o
obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o obj-$(CONFIG_CROS_EC_I2C) += cros_ec_i2c.o
obj-$(CONFIG_CROS_EC_SANDBOX) += cros_ec_sandbox.o
obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o obj-$(CONFIG_CROS_EC_SPI) += cros_ec_spi.o
endif endif