linux: Add a Linux 3.6 kernel recipe

* Add a recipe to build the linux kernel from the rpi-3.6.y branch at
  https://github.com/raspberrypi/linux
* Since this has a higher version, it will be the preferred linux kernel
  by default.

Signed-off-by: Jan Schmidt <thaytan@noraisin.net>
Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>

recipes-kernel/linux/linux-raspberrypi_3.6.11.bb

@@ -0,0 +1,34 @@
+require linux.inc
+
+DESCRIPTION = "Linux kernel for the RaspberryPi board"
+COMPATIBLE_MACHINE = "raspberrypi"
+
+PR = "r6"
+PV_append = "+git${SRCREV}"
+
+SRCREV = "31a951046155b27361127d9cf85a1f58719fe9b3"
+SRC_URI = "git://github.com/raspberrypi/linux.git;protocol=git;branch=rpi-3.6.y \
+          "
+S = "${WORKDIR}/git"
+
+# NOTE: For now we pull in the default config from the RPi kernel GIT tree.
+KERNEL_DEFCONFIG = "bcmrpi_defconfig"
+
+# CMDLINE for raspberrypi
+CMDLINE_raspberrypi = "dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 root=/dev/mmcblk0p2 rootfstype=ext4 rootwait"
+
+UDEV_GE_141 ?= "1"
+
+do_configure_prepend() {
+	install -m 0644 ${S}/arch/${ARCH}/configs/${KERNEL_DEFCONFIG} ${WORKDIR}/defconfig || die "No default configuration for ${MACHINE} / ${KERNEL_DEFCONFIG} available."
+}
+
+do_install_prepend() {
+	install -d ${D}/lib/firmware
+}
+
+do_deploy_append() {
+	# Deploy cmdline.txt
+	install -d ${DEPLOYDIR}/bcm2835-bootfiles
+	echo "${CMDLINE}" > ${DEPLOYDIR}/bcm2835-bootfiles/cmdline.txt
+}