Support external RTCs for boards without it

We add the rtc driver as module so we can attach e.g.
http://wiki.seeedstudio.com/Grove-RTC/

Add the necessary drivers as module.

Change-Id: Iacb8247f9e2edccabe854284672353a847a27e0d
Signed-off-by: Jan-Simon Möller <jsmoeller@linuxfoundation.org>

diff --git a/meta-agl-bsp/recipes-kernel/linux/linux-agl.inc b/meta-agl-bsp/recipes-kernel/linux/linux-agl.inc
index 47746a8..073cbc6 100644 (file)
--- a/meta-agl-bsp/recipes-kernel/linux/linux-agl.inc
+++ b/meta-agl-bsp/recipes-kernel/linux/linux-agl.inc
@@ -85,4 +85,9 @@ KERNEL_CONFIG_FRAGMENTS_append = " ${WORKDIR}/4a-sound.cfg"
 
 # iio-dummy-device support for test iiodevice
 SRC_URI_append = " file://iiodevice.cfg"
-KERNEL_CONFIG_FRAGMENTS_append = " ${WORKDIR}/iiodevice.cfg"
\ No newline at end of file
+KERNEL_CONFIG_FRAGMENTS_append = " ${WORKDIR}/iiodevice.cfg"
+
+# external rtc support via e.g. http://wiki.seeedstudio.com/Grove-RTC/
+SRC_URI_append = " file://rtc.cfg"
+KERNEL_CONFIG_FRAGMENTS_append = " ${WORKDIR}/rtc.cfg"
+

diff --git a/meta-agl-bsp/recipes-kernel/linux/linux/rtc.cfg b/meta-agl-bsp/recipes-kernel/linux/linux/rtc.cfg
new file mode 100644 (file)
index 0000000..2641958
--- /dev/null
+++ b/meta-agl-bsp/recipes-kernel/linux/linux/rtc.cfg
@@ -0,0 +1,7 @@
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_LIB=y
+CONFIG_RTC_INTF_SYSFS=y
+CONFIG_RTC_INTF_PROC=y
+CONFIG_RTC_INTF_DEV=y
+CONFIG_RTC_DRV_DS1307=m
+CONFIG_RTC_DRV_DS3232=m