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rtc: Allow use of RTC in SPL and TPL

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Add Kconfig options so that the RTC can be used in SPL and TPL. This is
helpful for accessing the contents of CMOS RAM, for example.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2018-10-01 12:22:15 -06:00
parent 107610775b
commit 380d4f787a
3 changed files with 20 additions and 1 deletions
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1
configs/chromebook_link64_defconfig
View file

@ -69,6 +69,7 @@ CONFIG_DM_I2C=y
CONFIG_SYS_I2C_INTEL=y
CONFIG_CROS_EC=y
CONFIG_CROS_EC_LPC=y
CONFIG_SPL_DM_RTC=y
CONFIG_SYS_NS16550=y
CONFIG_SPI=y
CONFIG_SPL_TIMER=y

18
drivers/rtc/Kconfig
View file

@ -13,6 +13,24 @@ config DM_RTC
drivers to perform the actual functions. See rtc.h for a
description of the API.
config SPL_DM_RTC
bool "Enable Driver Model for RTC drivers in SPL"
depends on SPL_DM
help
Enable drver model for real-time-clock drivers. The RTC uclass
then provides the rtc_get()/rtc_set() interface, delegating to
drivers to perform the actual functions. See rtc.h for a
description of the API.
config TPL_DM_RTC
bool "Enable Driver Model for RTC drivers in TPL"
depends on TPL_DM
help
Enable drver model for real-time-clock drivers. The RTC uclass
then provides the rtc_get()/rtc_set() interface, delegating to
drivers to perform the actual functions. See rtc.h for a
description of the API.
config RTC_PCF2127
bool "Enable PCF2127 driver"
depends on DM_RTC

2
drivers/rtc/Makefile
View file

@ -4,7 +4,7 @@
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#ccflags-y += -DDEBUG
obj-$(CONFIG_DM_RTC) += rtc-uclass.o
obj-$(CONFIG_$(SPL_TPL_)DM_RTC) += rtc-uclass.o
obj-$(CONFIG_RTC_AT91SAM9_RTT) += at91sam9_rtt.o
obj-y += date.o