1 files changed, 112 insertions, 0 deletions

diff --git a/recipes-kernel/linux/linux-altera.inc b/recipes-kernel/linux/linux-altera.inc
new file mode 100755
index 0000000..3a8ac1d
--- /dev/null
+++ b/recipes-kernel/linux/linux-altera.inc
@@ -0,0 +1,112 @@
+PR = "r1"
+
+KERNEL_REPO?="git://git.rocketboards.org/linux-socfpga.git"
+KERNEL_PROT?="http"
+KERNEL_DEFCONFIG?="socfpga_defconfig"
+KERNEL_TAG?="${AUTOREV}"
+
+SRC_URI = "${KERNEL_REPO};protocol=${KERNEL_PROT};branch=${KERNEL_BRANCH}"
+
+SRCREV_pn-${PN} = "${KERNEL_TAG}"
+
+inherit kernel
+SECTION = "kernel"
+DESCRIPTION = "Altera Linux kernel"
+LICENSE = "GPLv2"
+
+COMPATIBLE_MACHINE = "socfpga"
+
+LIC_FILES_CHKSUM = "file://${S}/COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
+
+S = "${WORKDIR}/git"
+
+MACHINE_DEFCONFIG = "${KERNEL_DEFCONFIG}"
+
+do_configure() {
+        export INITRAMFS_IMAGE_FILE="${INITRAMFS_IMAGE}-${MACHINE}.cpio"
+
+        unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
+        export CROSS_COMPILE="${TARGET_PREFIX}"
+        export ARCH=${ARCH}
+        
+        oe_runmake ${MACHINE_DEFCONFIG} CONFIG_BLK_DEV_INITRD=y
+        
+        cp .config .config.ori
+
+        grep CONFIG_BLK_DEV_INITRD .config || echo "CONFIG_BLK_DEV_INITRD=y" >> .config
+        grep CONFIG_INITRAMFS_SOURCE .config || echo "CONFIG_INITRAMFS_SOURCE=\"\"" >> .config
+        grep CONFIG_INITRAMFS_ROOT_UID .config || echo "CONFIG_INITRAMFS_ROOT_UID=0" >> .config
+        grep CONFIG_INITRAMFS_ROOT_GID .config || echo "CONFIG_INITRAMFS_ROOT_GID=0" >> .config
+        grep CONFIG_INITRAMFS_COMPRESSION_NONE .config || echo "CONFIG_INITRAMFS_COMPRESSION_NONE=y" >> .config
+
+        if [ ! -z ${INITRAMFS_IMAGE} ] && [ -e ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_FILE} ]; then
+                cp ${DEPLOY_DIR_IMAGE}/${INITRAMFS_IMAGE_FILE} .
+                echo "Found valid initramfs ${INITRAMFS_IMAGE_FILE}"
+                sed -i "s|^.*CONFIG_BLK_DEV_INITRD[ =].*$|CONFIG_BLK_DEV_INITRD=y|g" .config
+                sed -i "s|^.*CONFIG_INITRAMFS_SOURCE[ =].*$|CONFIG_INITRAMFS_SOURCE=\"${INITRAMFS_IMAGE_FILE}\"|g" .config
+                sed -i "s|^.*CONFIG_INITRAMFS_ROOT_UID[ =].*$|CONFIG_INITRAMFS_ROOT_UID=0|g" .config
+                sed -i "s|^.*CONFIG_INITRAMFS_ROOT_GID[ =].*$|CONFIG_INITRAMFS_ROOT_GID=0|g" .config
+                sed -i "s|^.*CONFIG_INITRAMFS_COMPRESSION_NONE[ =].*$|CONFIG_INITRAMFS_COMPRESSION_NONE=y|g" .config
+                oe_runmake oldconfig
+        else
+                rm -f *.cpio
+                echo "Initramfs disabled or can't find valid initramfs ${INITRAMFS_IMAGE_FILE}"
+                sed -i "s|^CONFIG_BLK_DEV_INITRD=.*$|# CONFIG_BLK_DEV_INITRD is not set|g" .config
+                sed -i "s|^CONFIG_INITRAMFS_SOURCE=\".*\"$|# CONFIG_INITRAMFS_SOURCE is not set|g" .config
+                sed -i "s|^CONFIG_INITRAMFS_ROOT_UID=.*$|# CONFIG_INITRAMFS_ROOT_UID is not set|g" .config
+                sed -i "s|^CONFIG_INITRAMFS_ROOT_GID=.*$|# CONFIG_INITRAMFS_ROOT_GID is not set|g" .config
+                sed -i "s|^CONFIG_INITRAMFS_COMPRESSION_NONE=.*$|# CONFIG_INITRAMFS_COMPRESSION_NONE is not set|g" .config
+                oe_runmake oldconfig
+        fi      
+}
+
+kernel_do_compile() {
+        unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
+        oe_runmake __headers CC="${KERNEL_CC}" LD="${KERNEL_LD}"
+        oe_runmake ${KERNEL_IMAGETYPE_FOR_MAKE} ${KERNEL_ALT_IMAGETYPE} CC="${KERNEL_CC}" LD="${KERNEL_LD}" LOADADDR=0x8000
+        if test "${KERNEL_IMAGETYPE_FOR_MAKE}.gz" = "${KERNEL_IMAGETYPE}"; then
+                gzip -9c < "${KERNEL_IMAGETYPE_FOR_MAKE}" > "${KERNEL_OUTPUT}"
+        fi
+}
+
+do_compile_dtb() {
+        unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS MACHINE
+        sync
+        oe_runmake ARCH=${ARCH} CROSS_COMPILE="${TARGET_PREFIX}" dtbs ||
+                oe_runmake ARCH=${ARCH} CROSS_COMPILE="${TARGET_PREFIX}" dtbs
+}
+
+addtask compile_dtb after do_compile before do_build
+
+KERNEL_DEVICETREE ?= "socfpga_vt socfpga_cyclone5 socfpga_arria5"
+
+do_deploy_dtb() {
+    install -d ${DEPLOY_DIR_IMAGE}
+    cd ${DEPLOY_DIR_IMAGE}
+    if test -n "${KERNEL_DEVICETREE}"; then
+        for DTB_FILE in ${KERNEL_DEVICETREE}; do
+            DTB_SYMLINK_NAME="${DTB_FILE}.dtb"
+            DEVICE_TREE_OUTPUT="${S}/arch/${ARCH}/boot/${DTB_SUBDIR}${DTB_FILE}.dtb"
+            DTB_NAME="${DTB_FILE}-${DATETIME}.dtb"
+            if [ ! -f ${DEVICE_TREE_OUTPUT} ]; then
+                echo "Warning: ${DEVICE_TREE_OUTPUT} is not available!"
+                continue
+            fi
+            install -m 0644 ${DEVICE_TREE_OUTPUT} ${DTB_NAME}
+            rm -f ${DTB_SYMLINK_NAME}
+            ln -sf ${DTB_NAME} ${DTB_SYMLINK_NAME}
+       done
+    fi
+}
+
+addtask deploy_dtb after do_compile_dtb before do_build
+
+VMLINUX_NAME ?= "vmlinux-${PV}-${PR}-${MACHINE}-${DATETIME}"
+
+kernel_do_deploy_append() {
+        install -m 0644 ${S}/vmlinux ${DEPLOYDIR}/${VMLINUX_NAME}
+        cd ${DEPLOYDIR} &&
+                rm -f vmlinux &&
+                ln -sf ${VMLINUX_NAME} vmlinux
+}
+