firmware: use common include to set source revision and include date in version

The firmware is split over multiple packages all of which need to use the same
source revision. Also, the firmware is currently not formally versioned, so
at least use the date the firmware was released in the versions.

recipes-bcm/bootfiles/bcm2835-bootfiles.bb

@@ -3,11 +3,10 @@ LICENSE = "proprietary-binary"
 
 LIC_FILES_CHKSUM = "file://LICENCE.broadcom;md5=e86e693d19572ee64cc8b17fb062faa9"
 
-# This is on the master branch
-SRCREV = "56cd7ffb3f7244017c8eb3b492ea37592c678506"
+include ../common/firmware.inc
 
 SRC_URI = " \
-        git://github.com/raspberrypi/firmware.git;protocol=git;branch=master  \    
+        git://github.com/raspberrypi/firmware.git;protocol=git;branch=master  \
 "
 
 S = "${WORKDIR}/git/boot"
@@ -23,7 +22,7 @@ do_deploy() {
 	done
 	for i in *.bin ; do
 		cp $i ${DEPLOY_DIR_IMAGE}/bcm2835-bootfiles
-	done	
+	done
 }
 
 PACKAGE_ARCH = "${MACHINE_ARCH}"

recipes-bcm/common/firmware.inc

@@ -0,0 +1,8 @@
+
+# 21/06/2012 firmware; this can be overridden from distro config
+RPIFW_SRCREV ?= "fc0232ac463f0618914bab9314e8e2ae27466d8c"
+RPIFW_DATE ?= "20120621"
+
+
+SRCREV = "${RPIFW_SRCREV}"
+PV = "${RPIFW_DATE}"

recipes-bcm/vc-graphics/vc-graphics.inc

@@ -5,7 +5,7 @@ LIC_FILES_CHKSUM = "file://LICENCE;md5=86e53f5f5909ee66900418028de11780"
 
 PROVIDES += "virtual/egl"
 
-SRCREV = "1178c4db57e8676f331fdacfb37ff1662430ea5f"
+include ../common/firmware.inc
 
 SRC_URI = "git://github.com/raspberrypi/firmware.git;protocol=git;branch=master\
            file://egl.pc"