rtc: Allow use of RTC in SPL and TPL

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>

diff --git a/configs/chromebook_link64_defconfig b/configs/chromebook_link64_defconfig
index fe6544b31ab977c2516dacab30be3de5de6f940e..2c51a2f7f79c5d15b34ea75a274c91a70d968303 100644 (file)
--- a/configs/chromebook_link64_defconfig
+++ b/configs/chromebook_link64_defconfig
@@ -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

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 97cf7d84dfac0e29536df7240fa705c3fff40a46..bcc01b135e52fe4f27e22f773f346be268c8e3f1 100644 (file)
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -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

diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 513e3ffc079fb7803b90409bb0bbd96be4f39f0b..1724602f1cb6ef8385aa6edf5dbc0090c311c0e1 100644 (file)
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -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