visionfive: Add initial support for Starfive Visionfive board

This is largely based on the beaglev code nbut tweaked to work with current
starfive kernel repositories and tweak to the board.

The kernel and rootfs boot with working network and graphics. The u-boot
binary builds but is as yet untested.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

conf/machine/visionfive.conf

@@ -0,0 +1,61 @@
+#@TYPE: Machine
+#@NAME: visionfive
+#@SOC: StarFive JH7100
+#@DESCRIPTION: Machine configuration for the VisionFive board
+
+require conf/machine/include/riscv/tune-riscv.inc
+
+MACHINE_FEATURES = "screen keyboard ext2 ext3 serial"
+
+KERNEL_CLASSES = "kernel-fitimage"
+KERNEL_IMAGETYPE = "fitImage"
+UBOOT_ENV ?= "boot"
+UBOOT_ENV_SUFFIX = "scr.uimg"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-starfive-dev"
+PREFERRED_PROVIDER_virtual/bootloader ?= "u-boot-starfive"
+
+PREFERRED_VERSION_openocd-native = "riscv"
+PREFERRED_VERSION_openocd = "riscv"
+
+EXTRA_IMAGEDEPENDS += "opensbi"
+RISCV_SBI_PLAT = "generic"
+
+## This sets u-boot as the default OpenSBI payload
+RISCV_SBI_PAYLOAD ?= "u-boot.bin"
+
+RISCV_SBI_FDT ?= "jh7100-visionfive.dtb"
+
+SERIAL_CONSOLES = "115200;ttyS0"
+
+MACHINE_EXTRA_RRECOMMENDS += " kernel-modules linux-firmware-beaglev-bcm43430"
+
+IMAGE_FSTYPES += "wic.gz wic.bmap ext4"
+KERNEL_DEVICETREE ?= "starfive/jh7100-starfive-visionfive-v1.dtb"
+
+## Do not update fstab file when using wic images
+WIC_CREATE_EXTRA_ARGS ?= "--no-fstab-update"
+
+EXTRA_IMAGEDEPENDS += "u-boot-starfive"
+UBOOT_MACHINE = "starfive_jh7100_visionfive_smode_defconfig"
+
+UBOOT_ENTRYPOINT = "0x80200000"
+UBOOT_DTB_LOADADDRESS = "0x82200000"
+UBOOT_DTB = "1"
+UBOOT_DTB_BINARY = "jh7100-visionfive.dtb"
+
+## wic default support
+WKS_FILE_DEPENDS ?= " \
+    opensbi \
+    e2fsprogs-native \
+    bmap-tools-native \
+"
+
+IMAGE_BOOT_FILES ?= " \
+    fw_payload.bin \
+    ${KERNEL_IMAGETYPE} \
+    ${RISCV_SBI_FDT}  \
+    boot.scr.uimg \
+    uEnv.txt \
+"
+
+WKS_FILE ?= "beaglev.wks"

recipes-bsp/u-boot/u-boot-starfive/fix-riscv-isa.patch

@@ -0,0 +1,19 @@
+u-boot for visionfive won't build with recent versions of the toolchain
+and ISA without using this specific architecture flag.
+
+Upstream-Status: Pending
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+Index: riscv/Makefile
+===================================================================
+--- riscv.orig/arch/riscv/Makefile
++++ riscv/arch/riscv/Makefile
+@@ -15,7 +15,7 @@ ifeq ($(CONFIG_RISCV_ISA_A),y)
+ 	ARCH_A = a
+ endif
+ ifeq ($(CONFIG_RISCV_ISA_C),y)
+-	ARCH_C = c
++	ARCH_C = c_zicsr_zifencei
+ endif
+ ifeq ($(CONFIG_CMODEL_MEDLOW),y)
+ 	CMODEL = medlow

recipes-bsp/u-boot/u-boot-starfive/uEnv-visionfive.txt

@@ -0,0 +1,11 @@
+fdt_high=0xffffffffffffffff
+initrd_high=0xffffffffffffffff
+scriptaddr=0x88100000
+script_offset_f=0x1fff000
+script_size_f=0x1000
+kernel_addr_r=0x84000000
+kernel_comp_addr_r=0x90000000
+kernel_cx_addr_r=0x88000000
+ramdisk_addr_r=0x88300000
+load mmc 0:1 0xa0000000 fitImage
+bootm 0xa0000000

recipes-bsp/u-boot/u-boot-starfive_v2021.04.bb

@@ -6,7 +6,7 @@ LIC_FILES_CHKSUM = "file://Licenses/README;md5=5a7450c57ffe5ae63fd732446b988025"
 FILESEXTRAPATHS:prepend := "${THISDIR}/files:"
 
 BRANCH:visionfive = "JH7100_VisionFive_OH_dev"
-BRANCH:beaglev-starlight-jh7100 = "Fedora_JH7100_2021.04"
+BRANCH:beaglev-starlight-jh7100 = "Fedora_VIC_7100_2021.04"
 
 SRC_URI = "git://github.com/starfive-tech/u-boot.git;protocol=https;branch=${BRANCH} \
            file://tftp-mmc-boot.txt \

recipes-kernel/linux/linux-starfive-dev.bb

@@ -6,7 +6,9 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=6bc538ed5bd9a7fc9398086aedcd7e46"
 KERNEL_VERSION_SANITY_SKIP = "1"
 
 SRCREV = "${AUTOREV}"
-BRANCH = "visionfive"
+SRCREV:visionfive = "f754a58449f0de76312bf84249139f5d8b232c66"
+BRANCH:visionfive = "esmil_starlight"
+BRANCH:beaglev-starlight-jh7100 = "beaglev_fedora_devel"
 FORK ?= "starfive-tech"
 SRC_URI = "git://github.com/${FORK}/linux.git;protocol=https;branch=${BRANCH} \
            file://extra.cfg \
@@ -16,7 +18,7 @@ SRC_URI = "git://github.com/${FORK}/linux.git;protocol=https;branch=${BRANCH} \
 LINUX_VERSION ?= "6.0.0"
 LINUX_VERSION_EXTENSION:append:beaglev-starlight-jh7100 = "-starlight"
 
-KBUILD_DEFCONFIG:beaglev-starlight-jh7100 = "starfive_jh7100_fedora_defconfig"
+KBUILD_DEFCONFIG:beaglev-starlight-jh7100 = "beaglev_defconfig"
 KBUILD_DEFCONFIG:visionfive = "visionfive_defconfig"
 
 COMPATIBLE_MACHINE = "(beaglev-starlight-jh7100|visionfive)"

recipes-kernel/linux/linux-starfive/extra.cfg

@@ -15,3 +15,5 @@ CONFIG_SOC_STARFIVE_VIC7100=y
 # restart
 CONFIG_MFD_TPS65086=y
 CONFIG_POWER_RESET_TPS65086=y
+
+CONFIG_HW_RANDOM_STARFIVE_VIC=y