update upstream to scarthgap

conf/layer.conf

@@ -0,0 +1,20 @@
+# We have a conf and classes directory, add to BBPATH
+BBPATH .= ":${LAYERDIR}"
+
+# We have recipes-* directories, add to BBFILES
+BBFILES += "${LAYERDIR}/recipes-*/*/*.bb \
+			${LAYERDIR}/recipes-*/*/*.bbappend"
+
+BBFILE_COLLECTIONS += "helium-rpi"
+BBFILE_PATTERN_helium-rpi = "^${LAYERDIR}/"
+BBFILE_PRIORITY_helium-rpi = "6"
+
+# This should only be incremented on significant changes that will
+# cause compatibility issues with other layers
+LAYERVERSION_helium-rpi = "2"
+
+
+LAYERDEPENDS_helium-rpi = "core raspberrypi helium"
+LAYERSERIES_COMPAT_helium-rpi = "scarthgap"
+
+LICENSE_FLAGS_ACCEPTED = "synaptics-killswitch"

conf/machine/include/rpi-common.inc

@@ -0,0 +1,9 @@
+# Raspberry Pi Helium common configuration
+
+ENABLE_UART = "1"
+ENABLE_I2C = "1"
+ENABLE_SPI_BUS = "1"
+ENABLE_W1 = "1"
+
+# don't install ALL kernel modules, let the machine pick what it needs
+MACHINE_EXTRA_RRECOMMENDS:remove = "kernel-modules"

conf/machine/rpi-zero-w.conf

@@ -0,0 +1,58 @@
+#@TYPE: Machine
+#@NAME: Raspberry Pi Zero W Development Board
+
+# Helium specific
+MACHINE_FRIENDLY_NAME = "Raspberry Pi Zero W"
+MACHINE_NUM_CORES = "1"
+
+require conf/machine/include/rpi-common.inc
+require conf/machine/raspberrypi0-wifi.conf
+
+KBUILD_DEFCONFIG:rpi-zero-w = "bcmrpi_defconfig"
+RPI_KERNEL_DEVICETREE = "broadcom/bcm2708-rpi-zero-w.dtb"
+
+# Kernel modules needed by machine and its interfaces
+# This list will probably change as I expect some of those will be needed
+# by multiple RPis
+MACHINE_EXTRA_RRECOMMENDS += " \
+	kernel-module-ipv6 \
+	kernel-module-brcmfmac-wcc \
+	kernel-module-brcmfmac \
+	kernel-module-brcmutil \
+	kernel-module-hci-uart \
+	kernel-module-sha256-generic \
+	kernel-module-libsha256 \
+	kernel-module-btbcm \
+	kernel-module-cfg80211 \
+	kernel-module-bcm2835-codec \
+	kernel-module-bluetooth \
+	kernel-module-spidev \
+	kernel-module-bcm2835-v4l2 \
+	kernel-module-bcm2835-isp \
+	kernel-module-v4l2-mem2mem \
+	kernel-module-bcm2835-mmal-vchiq \
+	kernel-module-videobuf2-vmalloc \
+	kernel-module-videobuf2-dma-contig \
+	kernel-module-videobuf2-memops \
+	kernel-module-videobuf2-v4l2 \
+	kernel-module-videobuf2-common \
+	kernel-module-videodev \
+	kernel-module-raspberrypi-hwmon \
+	kernel-module-raspberrypi-gpiomem \
+	kernel-module-ecdh-generic \
+	kernel-module-ecc \
+	kernel-module-spi-bcm2835 \
+	kernel-module-rfkill \
+	kernel-module-libaes \
+	kernel-module-vc-sm-cma \
+	kernel-module-mc \
+	kernel-module-snd-bcm2835 \
+	kernel-module-w1-gpio \
+	kernel-module-wire \
+	kernel-module-cn \
+	kernel-module-uio-pdrv-genirq \
+	kernel-module-fixed \
+	kernel-module-uio \
+	kernel-module-i2c-bcm2708 \
+	kernel-module-i2c-dev \
+"

recipes-bsp/bootfiles/rpi-bootfiles.bbappend

@@ -0,0 +1,5 @@
+# Enable UART output from bootcode.bin
+
+do_configure() {
+	sed -i "s/BOOT_UART=0/BOOT_UART=1/" ${S}/bootcode.bin
+}

recipes-core/images/helium-image-rpi.bb

@@ -0,0 +1,6 @@
+SUMMARY = "Helium image for Raspberry Pi"
+LICENSE = "MIT"
+
+require recipes-core/images/helium-image-default.bb
+DEPENDS += "rpi-bootfiles"
+