Freedom U540 / HiFive Unleashed development board support

conf/machine/freedom-u540.conf

@@ -0,0 +1,29 @@
+#@TYPE: Machine
+#@NAME: freedom-u540
+#@SOC: Freedom U540
+#@DESCRIPTION: Machine configuration for the HiFive Unleashed development board
+
+require conf/machine/include/tune-riscv.inc
+
+MACHINE_FEATURES = "screen keyboard ext2 ext3 serial"
+MACHINE_ARCH = "riscv64"
+
+KERNEL_IMAGETYPE = "vmlinux"
+
+PREFERRED_PROVIDER_virtual/kernel = "linux-riscv"
+PREFERRED_VERSION_linux-riscv = "4.15%"
+
+GDBVERSION = "riscv"
+QEMUVERSION = "riscv"
+
+EXTRA_IMAGEDEPENDS += "riscv-pk"
+
+SERIAL_CONSOLE = "115200 ttyS0"
+
+MACHINE_EXTRA_RRECOMMENDS += " kernel-modules"
+
+RISCV_BBL_PAYLOAD ?= "${KERNEL_IMAGETYPE}${KERNEL_INITRAMFS}-${MACHINE}.bin"
+
+INITRAMFS_IMAGE_BUNDLE = "1"
+INITRAMFS_IMAGE = "riscv-initramfs-image"
+KERNEL_INITRAMFS = '-initramfs'

conf/machine/qemuriscv64.conf

@@ -21,6 +21,8 @@ SERIAL_CONSOLES = "38400;ttyS0 38400;hvc0"
 MACHINE_EXTRA_RRECOMMENDS += " kernel-modules"
 EXTRA_IMAGEDEPENDS += "riscv-pk"
 
+RISCV_BBL_PAYLOAD ?= "${KERNEL_IMAGETYPE}"
+
 # qemuboot options
 QB_MACHINE = "-machine virt"
 QB_DEFAULT_KERNEL = "bbl"

recipes-core/images/riscv-initramfs-image.bb

@@ -0,0 +1,18 @@
+DESCRIPTION = "initramfs image to be used together with SiFive Unleashed board \
+as the board currently only supports booting from a ramdisk image"
+
+# Do not pollute the initrd image with rootfs features
+IMAGE_FEATURES = ""
+
+export IMAGE_BASENAME = "${MLPREFIX}riscv-initramfs-image"
+IMAGE_LINGUAS = ""
+
+LICENSE = "MIT"
+
+IMAGE_FSTYPES += "${INITRAMFS_FSTYPES}"
+inherit core-image
+
+IMAGE_ROOTFS_SIZE = "8192"
+IMAGE_ROOTFS_EXTRA_SPACE = "0"
+
+BAD_RECOMMENDATIONS += "busybox-syslog"

recipes-devtool/riscv-tools/riscv-pk.bb

@@ -13,15 +13,13 @@ LDFLAGS_append = " -Wl,--build-id=none"
 
 inherit autotools
 
-EXTRA_OECONF += "--enable-logo --with-payload=${DEPLOY_DIR_IMAGE}/vmlinux"
-
-#DEPENDS = "riscv-fesvr-native riscv-spike-native"
+EXTRA_OECONF += "--enable-logo --with-payload=${DEPLOY_DIR_IMAGE}/${RISCV_BBL_PAYLOAD}"
 
 INHIBIT_PACKAGE_STRIP = "1"
 
 S = "${WORKDIR}/git"
 
-do_configure[depends] = "virtual/kernel:do_deploy"
+DEPENDS = "virtual/kernel"
 
 do_install_prepend () {
         install -d ${D}${datadir}/riscv-pk
@@ -32,18 +30,20 @@ do_install_append() {
         rm -rf ${D}${exec_prefix}/riscv64-unknown-elf
 }
 
+do_install_append_freedom-u540() {
+        ${OBJCOPY} -S -O binary --change-addresses -0x80000000 \
+               ${WORKDIR}/build/bbl ${WORKDIR}/build/bbl.bin
+}
+
 do_deploy () {
         install -d ${DEPLOY_DIR_IMAGE}
         install -m 755 ${WORKDIR}/build/bbl ${DEPLOY_DIR_IMAGE}/bbl
 }
 
-addtask deploy before do_build after do_compile
-do_deploy[depends] = "${PN}:do_compile"
+do_deploy_append_freedom-u540() {
+        install -m 755 ${WORKDIR}/build/bbl.bin ${DEPLOY_DIR_IMAGE}/bbl.bin
+}
+addtask deploy before do_build after do_install
 
 SECURITY_CFLAGS = "${SECURITY_NOPIE_CFLAGS}"
 SECURITY_LDFLAGS = ""
-
-do_configure[nostamp] = "1"
-do_compile[nostamp] = "1"
-do_install[nostamp] = "1"
-do_deploy[nostamp] = "1"

recipes-kernel/linux/files/freedom-u540/defconfig

@@ -0,0 +1,98 @@
+CONFIG_SMP=y
+# CONFIG_COMPACTION is not set
+CONFIG_HZ_100=y
+CONFIG_PCI=y
+CONFIG_PCI_DEBUG=y
+CONFIG_PCIE_XILINX=y
+CONFIG_CROSS_COMPILE=""
+CONFIG_DEFAULT_HOSTNAME="ucbvax"
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_NAMESPACES=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_EMBEDDED=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PARTITION_ADVANCED=y
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK_RO=y
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_EEPROM_AT24=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_ATA=y
+CONFIG_SATA_AHCI=y
+CONFIG_SATA_SIL24=y
+CONFIG_NETDEVICES=y
+CONFIG_VIRTIO_NET=y
+CONFIG_MACB=y
+CONFIG_E1000E=y
+CONFIG_R8169=y
+CONFIG_MICROSEMI_PHY=y
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_VT is not set
+CONFIG_SERIAL_SIFIVE=y
+CONFIG_SERIAL_SIFIVE_CONSOLE=y
+# CONFIG_HVC_RISCV_SBI is not set
+CONFIG_VIRTIO_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_I2C_OCORES=y
+CONFIG_SPI=y
+CONFIG_SPI_SIFIVE=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_SIFIVE=y
+CONFIG_POWER_RESET=y
+CONFIG_POWER_RESET_GPIO_RESTART=y
+CONFIG_PMBUS=y
+CONFIG_USB=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_MMC=y
+CONFIG_MMC_SPI=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_PWM=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_MTD=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_PANIC=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_CLK_U54_PRCI=y
+CONFIG_CLK_GEMGXL_MGMT=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_PWM=y
+CONFIG_PWM_SIFIVE=y
+CONFIG_NVMEM_SIFIVE_U500_OTP=y
+CONFIG_EXT3_FS=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="earlyprintk"
+CONFIG_PRINTK_TIME=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_STACKTRACE=y
+# CONFIG_CRYPTO_HW is not set

recipes-kernel/linux/linux-riscv-common.inc

@@ -0,0 +1,32 @@
+DESCRIPTION = "RISC-V Linux Kernel"
+SECTION = "kernel"
+LICENSE = "GPLv2"
+LIC_FILES_CHKSUM = "file://${S}/COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
+
+inherit kernel
+require recipes-kernel/linux/linux-yocto.inc
+
+SRC_URI = "\
+    git://github.com/riscv/riscv-linux.git;branch=${BRANCH} \
+    file://earlyprintk.cfg \
+"
+
+# qemu uses in-tree defconfig
+# freedom-u540 uses out-of-tree defconfig
+SRC_URI_append_freedom-u540 = " file://defconfig"
+
+LINUX_VERSION_EXTENSION = "-riscv"
+
+PV = "${LINUX_VERSION}+git${SRCPV}"
+
+DEPENDS_append = " libgcc"
+
+KBUILD_DEFCONFIG_qemuriscv64 = "defconfig"
+KCONFIG_MODE="--alldefconfig"
+
+KERNEL_CC_append = " ${TOOLCHAIN_OPTIONS} ${SECURITY_NOPIE_CFLAGS}"
+KERNEL_LD_append = " -no-pie"
+
+COMPATIBLE_MACHINE = "(qemuriscv64|freedom-u540)"
+
+KERNEL_FEATURES_remove = "features/debug/printk.scc"

recipes-kernel/linux/linux-riscv_4.15.bb

@@ -1,43 +1,6 @@
-DESCRIPTION = "RISC-V Linux Kernel"
-SECTION = "kernel"
-LICENSE = "GPLv2"
+require recipes-kernel/linux/linux-riscv-common.inc
 
-LIC_FILES_CHKSUM = "file://${S}/COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
-
-COMPATIBLE_MACHINE = "(qemuriscv64)"
-
-LINUX_KERNEL_TYPE ?= "standard"
-# patch version
-PV_append = ".0"
-
-KBRANCH ?= "${BRANCH}"
-KMACHINE ?= "${MACHINE}"
-KMETA = "meta"
-KBUILD_DEFCONFIG_qemuriscv64 = "defconfig"
-KCONFIG_MODE="--alldefconfig"
-
-DEPENDS_append = " libgcc"
-
-KERNEL_CC_append = " ${TOOLCHAIN_OPTIONS} ${SECURITY_NOPIE_CFLAGS}"
-KERNEL_LD_append = " -no-pie"
-
-#KERNEL_FEATURES_append_riscv += " cfg/smp.scc"
-
-#KERNEL_ALT_IMAGETYPE = ""
-
-#KERNEL_OUTPUT = "vmlinux"
-#KERNEL_IMAGETYPE = "vmlinux"
-
-inherit kernel siteinfo
+LINUX_VERSION ?= "4.15"
 
 BRANCH = "riscv-linux-4.15"
-
 SRCREV = "2b0aa1de45f63535f6d26757aa22b48515289302"
-SRCREV_machine = "2b0aa1de45f63535f6d26757aa22b48515289302"
-
-SRC_URI = "git://github.com/riscv/riscv-linux.git;branch=${BRANCH} \
-           file://earlyprintk.cfg \
-          "
-
-require recipes-kernel/linux/linux-yocto.inc
-KERNEL_FEATURES_remove = "features/debug/printk.scc"

recipes-kernel/linux/linux-riscv_4.16.bb

@@ -1,36 +1,6 @@
-DESCRIPTION = "RISC-V Linux Kernel"
-SECTION = "kernel"
-LICENSE = "GPLv2"
+require recipes-kernel/linux/linux-riscv-common.inc
 
-LIC_FILES_CHKSUM = "file://${S}/COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
-
-COMPATIBLE_MACHINE = "(qemuriscv64)"
-
-LINUX_KERNEL_TYPE ?= "standard"
-# patch version
-PV_append = "-rc5"
-
-KBRANCH ?= "${BRANCH}"
-KMACHINE ?= "${MACHINE}"
-KMETA = "meta"
-KBUILD_DEFCONFIG_qemuriscv64 = "defconfig"
-KCONFIG_MODE="--alldefconfig"
-
-DEPENDS_append = " libgcc"
-
-KERNEL_CC_append = " ${TOOLCHAIN_OPTIONS} ${SECURITY_NOPIE_CFLAGS}"
-KERNEL_LD_append = " -no-pie"
-
-inherit kernel siteinfo
+LINUX_VERSION ?= "4.16-rc5"
 
 BRANCH = "riscv-all"
-
 SRCREV = "7f82cffaad50273eedb654b58167c662383eac99"
-SRCREV_machine = "7f82cffaad50273eedb654b58167c662383eac99"
-
-SRC_URI = "git://github.com/riscv/riscv-linux.git;branch=${BRANCH} \
-           file://earlyprintk.cfg \
-          "
-
-require recipes-kernel/linux/linux-yocto.inc
-KERNEL_FEATURES_remove = "features/debug/printk.scc"