diff --git a/target/linux/sifiveu/Makefile b/target/linux/sifiveu/Makefile new file mode 100644 index 00000000000..f88164e7af3 --- /dev/null +++ b/target/linux/sifiveu/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Copyright (C) 2022 Toco Technologies +# +include $(TOPDIR)/rules.mk + +ARCH:=riscv64 +BOARD:=sifiveu +BOARDNAME:=SiFive U-based RISC-V boards +FEATURES:=ext4 +KERNELNAME:=Image dtbs +SUBTARGETS:=generic + +KERNEL_PATCHVER:=5.15 + +include $(INCLUDE_DIR)/target.mk + +define Target/Description + Build firmware images for the SiFive U-based boards + (HiFive boards) +endef + +$(eval $(call BuildTarget)) diff --git a/target/linux/sifiveu/base-files/etc/board.d/01_leds b/target/linux/sifiveu/base-files/etc/board.d/01_leds new file mode 100644 index 00000000000..5610a791ecd --- /dev/null +++ b/target/linux/sifiveu/base-files/etc/board.d/01_leds @@ -0,0 +1,21 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Copyright (C) 2022 OpenWrt.org +# + +. /lib/functions/uci-defaults.sh + +board_config_update + +case "$(board_name)" in +sifive,hifive-unleashed-a00) + ucidef_set_led_netdev "lan" "LAN" "green:d3" "eth0" + ;; +sifive,hifive-unmatched-a00) + ucidef_set_led_netdev "lan" "LAN" "green:d2" "eth0" + ;; +esac + +board_config_flush + +exit 0 diff --git a/target/linux/sifiveu/base-files/etc/board.d/02_network b/target/linux/sifiveu/base-files/etc/board.d/02_network new file mode 100644 index 00000000000..ca9f7f20080 --- /dev/null +++ b/target/linux/sifiveu/base-files/etc/board.d/02_network @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Copyright (C) 2022 OpenWrt.org +# + +. /lib/functions/uci-defaults.sh + +board_config_update + +case "$(board_name)" in +*) + ucidef_set_interface_lan 'eth0' + ;; +esac + +board_config_flush + +exit 0 diff --git a/target/linux/sifiveu/base-files/etc/inittab b/target/linux/sifiveu/base-files/etc/inittab new file mode 100644 index 00000000000..69f97c47c81 --- /dev/null +++ b/target/linux/sifiveu/base-files/etc/inittab @@ -0,0 +1,4 @@ +::sysinit:/etc/init.d/rcS S boot +::shutdown:/etc/init.d/rcS K shutdown +ttySIF0::askfirst:/usr/libexec/login.sh +tty1::askfirst:/usr/libexec/login.sh diff --git a/target/linux/sifiveu/base-files/lib/preinit/79_move_config b/target/linux/sifiveu/base-files/lib/preinit/79_move_config new file mode 100644 index 00000000000..2796c4d01b6 --- /dev/null +++ b/target/linux/sifiveu/base-files/lib/preinit/79_move_config @@ -0,0 +1,19 @@ +# Copyright (C) 2012-2015 OpenWrt.org + +move_config() { + local partdev + + . /lib/upgrade/common.sh + + if export_bootdevice && export_partdevice partdev 3; then + if mount -t vfat -o rw,noatime "/dev/$partdev" /mnt; then + if [ -f "/mnt/$BACKUP_FILE" ]; then + mv -f "/mnt/$BACKUP_FILE" / + fi + umount /mnt + fi + fi +} + +boot_hook_add preinit_mount_root move_config + diff --git a/target/linux/sifiveu/base-files/lib/upgrade/platform.sh b/target/linux/sifiveu/base-files/lib/upgrade/platform.sh new file mode 100644 index 00000000000..b5f6bada419 --- /dev/null +++ b/target/linux/sifiveu/base-files/lib/upgrade/platform.sh @@ -0,0 +1,86 @@ +platform_check_image() { + local diskdev partdev diff + + export_bootdevice && export_partdevice diskdev 0 || { + echo "Unable to determine upgrade device" + return 1 + } + + get_partitions "/dev/$diskdev" bootdisk + + #extract the boot sector from the image + get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b 2>/dev/null + + get_partitions /tmp/image.bs image + + #compare tables + diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)" + + rm -f /tmp/image.bs /tmp/partmap.bootdisk /tmp/partmap.image + + if [ -n "$diff" ]; then + echo "Partition layout has changed. Full image will be written." + ask_bool 0 "Abort" && exit 1 + return 0 + fi +} + +platform_copy_config() { + local partdev + + if export_partdevice partdev 3; then + mount -t vfat -o rw,noatime "/dev/$partdev" /mnt + cp -af "$UPGRADE_BACKUP" "/mnt/$BACKUP_FILE" + umount /mnt + fi +} + +platform_do_upgrade() { + local diskdev partdev diff + + export_bootdevice && export_partdevice diskdev 0 || { + echo "Unable to determine upgrade device" + return 1 + } + + sync + + if [ "$UPGRADE_OPT_SAVE_PARTITIONS" = "1" ]; then + get_partitions "/dev/$diskdev" bootdisk + + #extract the boot sector from the image + get_image "$@" | dd of=/tmp/image.bs count=1 bs=512b + + get_partitions /tmp/image.bs image + + #compare tables + diff="$(grep -F -x -v -f /tmp/partmap.bootdisk /tmp/partmap.image)" + else + diff=1 + fi + + if [ -n "$diff" ]; then + get_image "$@" | dd of="/dev/$diskdev" bs=4096 conv=fsync + + # Separate removal and addtion is necessary; otherwise, partition 1 + # will be missing if it overlaps with the old partition 2 + partx -d - "/dev/$diskdev" + partx -a - "/dev/$diskdev" + + return 0 + fi + + #iterate over each partition from the image and write it to the boot disk + while read part start size; do + if export_partdevice partdev $part; then + echo "Writing image to /dev/$partdev..." + get_image "$@" | dd of="/dev/$partdev" ibs="512" obs=1M skip="$start" count="$size" conv=fsync + else + echo "Unable to find partition $part device, skipped." + fi + done < /tmp/partmap.image + + #copy partition uuid + echo "Writing new UUID to /dev/$diskdev..." + get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync +} diff --git a/target/linux/sifiveu/config-5.15 b/target/linux/sifiveu/config-5.15 new file mode 100644 index 00000000000..fce0f659e3f --- /dev/null +++ b/target/linux/sifiveu/config-5.15 @@ -0,0 +1,363 @@ +CONFIG_64BIT=y +CONFIG_ARCH_CLOCKSOURCE_INIT=y +CONFIG_ARCH_DMA_ADDR_T_64BIT=y +CONFIG_ARCH_MMAP_RND_BITS=18 +CONFIG_ARCH_MMAP_RND_BITS_MAX=24 +CONFIG_ARCH_MMAP_RND_BITS_MIN=18 +CONFIG_ARCH_OPTIONAL_KERNEL_RWX=y +CONFIG_ARCH_OPTIONAL_KERNEL_RWX_DEFAULT=y +# CONFIG_ARCH_RV32I is not set +CONFIG_ARCH_RV64I=y +CONFIG_ARCH_SELECT_MEMORY_MODEL=y +CONFIG_ARCH_SPARSEMEM_ENABLE=y +CONFIG_ARCH_STACKWALK=y +CONFIG_ASSOCIATIVE_ARRAY=y +CONFIG_ATA=y +CONFIG_ATA_VERBOSE_ERROR=y +CONFIG_BLK_DEV_SD=y +CONFIG_BLK_MQ_PCI=y +CONFIG_BLK_MQ_VIRTIO=y +CONFIG_CAVIUM_PTP=y +CONFIG_CC_HAVE_STACKPROTECTOR_TLS=y +CONFIG_CLK_ANALOGBITS_WRPLL_CLN28HPC=y +CONFIG_CLK_SIFIVE=y +CONFIG_CLK_SIFIVE_PRCI=y +CONFIG_CLONE_BACKWARDS=y +CONFIG_CLZ_TAB=y +CONFIG_CMODEL_MEDANY=y +# CONFIG_CMODEL_MEDLOW is not set +CONFIG_COMMON_CLK=y +# CONFIG_COMPAT_32BIT_TIME is not set +CONFIG_COMPAT_BRK=y +CONFIG_CONSOLE_TRANSLATIONS=y +CONFIG_COREDUMP=y +CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y +CONFIG_CPU_ISOLATION=y +CONFIG_CPU_RMAP=y +CONFIG_CRC16=y +# CONFIG_CRC32_SARWATE is not set +CONFIG_CRC32_SLICEBY8=y +CONFIG_CRC7=y +CONFIG_CRC_ITU_T=y +CONFIG_CRYPTO_CRC32C=y +CONFIG_CRYPTO_DRBG=y +CONFIG_CRYPTO_DRBG_HMAC=y +CONFIG_CRYPTO_DRBG_MENU=y +CONFIG_CRYPTO_ECHAINIV=y +CONFIG_CRYPTO_HASH_INFO=y +CONFIG_CRYPTO_HMAC=y +CONFIG_CRYPTO_JITTERENTROPY=y +CONFIG_CRYPTO_LIB_POLY1305_RSIZE=1 +CONFIG_CRYPTO_LIB_SHA256=y +CONFIG_CRYPTO_RNG=y +CONFIG_CRYPTO_RNG2=y +CONFIG_CRYPTO_RNG_DEFAULT=y +CONFIG_CRYPTO_RSA=y +CONFIG_CRYPTO_SHA256=y +CONFIG_CRYPTO_SHA512=y +CONFIG_DEBUG_BUGVERBOSE=y +CONFIG_DECOMPRESS_GZIP=y +CONFIG_DEVTMPFS=y +CONFIG_DEVTMPFS_MOUNT=y +CONFIG_DNOTIFY=y +CONFIG_DTC=y +CONFIG_DUMMY_CONSOLE=y +CONFIG_EDAC=y +# CONFIG_EDAC_DEBUG is not set +CONFIG_EDAC_LEGACY_SYSFS=y +CONFIG_EDAC_SIFIVE=y +CONFIG_EDAC_SUPPORT=y +CONFIG_EFI=y +CONFIG_EFIVAR_FS=m +# CONFIG_EFI_BOOTLOADER_CONTROL is not set +# CONFIG_EFI_CAPSULE_LOADER is not set +# CONFIG_EFI_DISABLE_PCI_DMA is not set +CONFIG_EFI_EARLYCON=y +CONFIG_EFI_ESRT=y +CONFIG_EFI_GENERIC_STUB=y +CONFIG_EFI_PARAMS_FROM_FDT=y +CONFIG_EFI_RUNTIME_WRAPPERS=y +CONFIG_EFI_STUB=y +# CONFIG_EFI_TEST is not set +CONFIG_ELF_CORE=y +CONFIG_ERRATA_SIFIVE=y +CONFIG_ERRATA_SIFIVE_CIP_1200=y +CONFIG_ERRATA_SIFIVE_CIP_453=y +CONFIG_EXT4_FS=y +CONFIG_FAILOVER=y +CONFIG_FHANDLE=y +CONFIG_FIXED_PHY=y +CONFIG_FIX_EARLYCON_MEM=y +CONFIG_FONT_8x16=y +CONFIG_FONT_AUTOSELECT=y +CONFIG_FONT_SUPPORT=y +CONFIG_FPU=y +CONFIG_FRAME_POINTER=y +CONFIG_FRAME_WARN=2048 +CONFIG_FS_IOMAP=y +CONFIG_FS_MBCACHE=y +CONFIG_FWNODE_MDIO=y +CONFIG_FW_LOADER_PAGED_BUF=y +CONFIG_GENERIC_ALLOCATOR=y +CONFIG_GENERIC_ARCH_TOPOLOGY=y +CONFIG_GENERIC_BUG=y +CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y +CONFIG_GENERIC_CLOCKEVENTS=y +CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y +CONFIG_GENERIC_CSUM=y +CONFIG_GENERIC_EARLY_IOREMAP=y +CONFIG_GENERIC_GETTIMEOFDAY=y +CONFIG_GENERIC_IDLE_POLL_SETUP=y +CONFIG_GENERIC_IOREMAP=y +CONFIG_GENERIC_IRQ_INJECTION=y +CONFIG_GENERIC_IRQ_MULTI_HANDLER=y +CONFIG_GENERIC_IRQ_SHOW=y +CONFIG_GENERIC_IRQ_SHOW_LEVEL=y +CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED=y +CONFIG_GENERIC_MSI_IRQ=y +CONFIG_GENERIC_MSI_IRQ_DOMAIN=y +CONFIG_GENERIC_PCI_IOMAP=y +CONFIG_GENERIC_SCHED_CLOCK=y +CONFIG_GENERIC_SMP_IDLE_THREAD=y +CONFIG_GENERIC_STRNCPY_FROM_USER=y +CONFIG_GENERIC_STRNLEN_USER=y +CONFIG_GENERIC_TIME_VSYSCALL=y +CONFIG_GLOB=y +CONFIG_GPIOLIB=y +CONFIG_GPIOLIB_IRQCHIP=y +CONFIG_GPIO_CDEV=y +CONFIG_GPIO_CDEV_V1=y +CONFIG_GPIO_GENERIC=y +CONFIG_GPIO_SIFIVE=y +CONFIG_HANDLE_DOMAIN_IRQ=y +CONFIG_HAS_DMA=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT_MAP=y +CONFIG_HID=y +CONFIG_HID_GENERIC=y +CONFIG_HOTPLUG_PCI=y +# CONFIG_HOTPLUG_PCI_CPCI is not set +CONFIG_HOTPLUG_PCI_PCIE=y +CONFIG_HOTPLUG_PCI_SHPC=y +CONFIG_HVC_DRIVER=y +CONFIG_HVC_RISCV_SBI=y +CONFIG_HW_CONSOLE=y +CONFIG_I2C=y +CONFIG_I2C_BOARDINFO=y +CONFIG_I2C_COMPAT=y +CONFIG_I2C_HELPER_AUTO=y +CONFIG_I2C_OCORES=y +CONFIG_INITRAMFS_SOURCE="" +CONFIG_INPUT=y +# CONFIG_IOMMU_DEBUGFS is not set +CONFIG_IOMMU_SUPPORT=y +CONFIG_IO_URING=y +CONFIG_IRQCHIP=y +CONFIG_IRQ_DOMAIN=y +CONFIG_IRQ_DOMAIN_HIERARCHY=y +CONFIG_IRQ_FORCED_THREADING=y +CONFIG_IRQ_WORK=y +CONFIG_JBD2=y +CONFIG_KALLSYMS=y +CONFIG_KEYS=y +CONFIG_LEDS_PWM=y +CONFIG_LEDS_TRIGGER_DISK=y +CONFIG_LEGACY_PTYS=y +CONFIG_LEGACY_PTY_COUNT=256 +CONFIG_LIBFDT=y +CONFIG_LOCALVERSION_AUTO=y +CONFIG_LOCK_DEBUGGING_SUPPORT=y +CONFIG_LOCK_SPIN_ON_OWNER=y +CONFIG_MACB=y +# CONFIG_MACB_PCI is not set +CONFIG_MACB_USE_HWSTAMP=y +CONFIG_MDIO_BUS=y +CONFIG_MDIO_DEVICE=y +CONFIG_MDIO_DEVRES=y +CONFIG_MEMFD_CREATE=y +CONFIG_MFD_CORE=y +CONFIG_MFD_SYSCON=y +CONFIG_MICROSEMI_PHY=y +CONFIG_MIGRATION=y +CONFIG_MMC=y +CONFIG_MMC_BLOCK=y +CONFIG_MMC_SDHCI=y +CONFIG_MMC_SDHCI_CADENCE=y +# CONFIG_MMC_SDHCI_PCI is not set +CONFIG_MMC_SDHCI_PLTFM=y +CONFIG_MMC_SPI=y +CONFIG_MMIOWB=y +CONFIG_MODULES_USE_ELF_RELA=y +CONFIG_MODULE_SECTIONS=y +CONFIG_MPILIB=y +CONFIG_MQ_IOSCHED_DEADLINE=y +CONFIG_MQ_IOSCHED_KYBER=y +CONFIG_MTD_SPI_NOR=y +CONFIG_MTD_SPI_NOR_USE_4K_SECTORS=y +CONFIG_MUTEX_SPIN_ON_OWNER=y +CONFIG_NEED_DMA_MAP_STATE=y +CONFIG_NET_FAILOVER=y +CONFIG_NET_FLOW_LIMIT=y +CONFIG_NET_PTP_CLASSIFY=y +CONFIG_NET_SELFTESTS=y +CONFIG_NLS=y +CONFIG_NLS_CODEPAGE_437=y +CONFIG_NLS_ISO8859_1=y +CONFIG_NR_CPUS=8 +CONFIG_NVMEM=y +CONFIG_NVMEM_SYSFS=y +CONFIG_OF=y +CONFIG_OF_ADDRESS=y +CONFIG_OF_EARLY_FLATTREE=y +CONFIG_OF_FLATTREE=y +CONFIG_OF_GPIO=y +CONFIG_OF_IRQ=y +CONFIG_OF_KOBJ=y +CONFIG_OF_MDIO=y +CONFIG_OID_REGISTRY=y +CONFIG_PADATA=y +CONFIG_PAGE_OFFSET=0xffffffe000000000 +CONFIG_PAGE_REPORTING=y +CONFIG_PA_BITS=56 +CONFIG_PCI=y +CONFIG_PCIEAER=y +CONFIG_PCIEAER_INJECT=m +CONFIG_PCIEASPM=y +CONFIG_PCIEASPM_DEFAULT=y +# CONFIG_PCIEASPM_PERFORMANCE is not set +# CONFIG_PCIEASPM_POWERSAVE is not set +# CONFIG_PCIEASPM_POWER_SUPERSAVE is not set +CONFIG_PCIEPORTBUS=y +CONFIG_PCIE_DPC=y +CONFIG_PCIE_DW=y +CONFIG_PCIE_DW_HOST=y +CONFIG_PCIE_ECRC=y +CONFIG_PCIE_FU740=y +CONFIG_PCIE_PTM=y +CONFIG_PCIE_XILINX=y +CONFIG_PCI_DEBUG=y +CONFIG_PCI_DOMAINS=y +CONFIG_PCI_DOMAINS_GENERIC=y +CONFIG_PCI_ECAM=y +CONFIG_PCI_HOST_COMMON=y +CONFIG_PCI_HOST_GENERIC=y +CONFIG_PCI_MSI=y +CONFIG_PCI_MSI_IRQ_DOMAIN=y +CONFIG_PCI_SW_SWITCHTEC=y +CONFIG_PGTABLE_LEVELS=3 +CONFIG_PHYLIB=y +CONFIG_PHYLINK=y +CONFIG_PHYS_ADDR_T_64BIT=y +# CONFIG_PHYS_RAM_BASE_FIXED is not set +CONFIG_POWER_RESET=y +CONFIG_POWER_RESET_GPIO=y +CONFIG_POWER_RESET_GPIO_RESTART=y +CONFIG_POWER_RESET_RESTART=y +CONFIG_POWER_RESET_SYSCON=y +CONFIG_POWER_RESET_SYSCON_POWEROFF=y +CONFIG_PPS=y +CONFIG_PRINTK_TIME=y +CONFIG_PTP_1588_CLOCK=y +CONFIG_PTP_1588_CLOCK_OPTIONAL=y +CONFIG_PWM=y +CONFIG_PWM_SIFIVE=y +CONFIG_PWM_SYSFS=y +CONFIG_RATIONAL=y +CONFIG_RCU_TRACE=y +CONFIG_RD_GZIP=y +CONFIG_REALTEK_PHY=y +CONFIG_REGMAP=y +CONFIG_REGMAP_I2C=y +CONFIG_REGMAP_IRQ=y +CONFIG_REGMAP_MMIO=y +# CONFIG_RESET_ATTACK_MITIGATION is not set +CONFIG_RESET_CONTROLLER=y +CONFIG_RESET_SIMPLE=y +CONFIG_RFS_ACCEL=y +CONFIG_RISCV=y +CONFIG_RISCV_ERRATA_ALTERNATIVE=y +CONFIG_RISCV_INTC=y +CONFIG_RISCV_ISA_C=y +CONFIG_RISCV_SBI=y +CONFIG_RISCV_SBI_V01=y +CONFIG_RISCV_TIMER=y +CONFIG_RPS=y +CONFIG_RTC_CLASS=y +# CONFIG_RTC_DRV_EFI is not set +CONFIG_RTC_I2C_AND_SPI=y +CONFIG_RWSEM_SPIN_ON_OWNER=y +CONFIG_SCHED_DEBUG=y +CONFIG_SCSI=y +CONFIG_SCSI_COMMON=y +CONFIG_SERIAL_8250_DEPRECATED_OPTIONS=y +CONFIG_SERIAL_8250_EXAR=y +CONFIG_SERIAL_8250_NR_UARTS=4 +CONFIG_SERIAL_8250_PCI=y +CONFIG_SERIAL_8250_RUNTIME_UARTS=4 +CONFIG_SERIAL_EARLYCON_RISCV_SBI=y +CONFIG_SERIAL_MCTRL_GPIO=y +CONFIG_SERIAL_OF_PLATFORM=y +CONFIG_SERIAL_SIFIVE=y +CONFIG_SERIAL_SIFIVE_CONSOLE=y +CONFIG_SERIO=y +CONFIG_SERIO_SERPORT=y +CONFIG_SG_POOL=y +CONFIG_SIFIVE_L2=y +CONFIG_SIFIVE_PLIC=y +CONFIG_SLUB_DEBUG=y +CONFIG_SMP=y +CONFIG_SOCK_RX_QUEUE_MAPPING=y +# CONFIG_SOC_MICROCHIP_POLARFIRE is not set +CONFIG_SOC_SIFIVE=y +# CONFIG_SOC_VIRT is not set +CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y +CONFIG_SPARSE_IRQ=y +CONFIG_SPI=y +CONFIG_SPI_BITBANG=y +CONFIG_SPI_MASTER=y +CONFIG_SPI_MEM=y +CONFIG_SPI_SIFIVE=y +CONFIG_SRCU=y +CONFIG_STACKTRACE=y +CONFIG_SWIOTLB=y +CONFIG_SWPHY=y +CONFIG_SYSCTL_EXCEPTION_TRACE=y +CONFIG_SYSFB=y +# CONFIG_SYSFB_SIMPLEFB is not set +CONFIG_THREAD_INFO_IN_TASK=y +CONFIG_TICK_CPU_ACCOUNTING=y +CONFIG_TIMER_OF=y +CONFIG_TIMER_PROBE=y +CONFIG_TRACE_CLOCK=y +CONFIG_TREE_RCU=y +CONFIG_TREE_SRCU=y +CONFIG_TUNE_GENERIC=y +CONFIG_UCS2_STRING=y +CONFIG_UEVENT_HELPER_PATH="" +CONFIG_USB=y +CONFIG_USB_COMMON=y +CONFIG_USB_EHCI_HCD=y +# CONFIG_USB_EHCI_HCD_PLATFORM is not set +CONFIG_USB_EHCI_PCI=y +CONFIG_USB_HID=y +CONFIG_USB_NET_DRIVERS=y +CONFIG_USB_PCI=y +CONFIG_USB_STORAGE=y +CONFIG_USB_SUPPORT=y +# CONFIG_USB_UHCI_HCD is not set +CONFIG_USB_XHCI_HCD=y +CONFIG_USB_XHCI_PCI=y +# CONFIG_USB_XHCI_PLATFORM is not set +CONFIG_VA_BITS=39 +CONFIG_VFAT_FS=y +CONFIG_VGA_ARB=y +CONFIG_VGA_ARB_MAX_GPUS=16 +CONFIG_VMAP_STACK=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_VT=y +CONFIG_VT_CONSOLE=y +# CONFIG_VT_HW_CONSOLE_BINDING is not set +CONFIG_WATCHDOG_CORE=y +CONFIG_XPS=y +CONFIG_ZLIB_INFLATE=y +CONFIG_ZONE_DMA32=y diff --git a/target/linux/sifiveu/generic/target.mk b/target/linux/sifiveu/generic/target.mk new file mode 100644 index 00000000000..f5cb1fb19b9 --- /dev/null +++ b/target/linux/sifiveu/generic/target.mk @@ -0,0 +1 @@ +BOARDNAME:=Generic diff --git a/target/linux/sifiveu/image/Config.in b/target/linux/sifiveu/image/Config.in new file mode 100644 index 00000000000..640869b92c8 --- /dev/null +++ b/target/linux/sifiveu/image/Config.in @@ -0,0 +1,5 @@ +config SIFIVEU_SD_BOOT_PARTSIZE + int "Boot (SD Card) filesystem partition size (in MB)" + depends on TARGET_sifiveu + default 32 + diff --git a/target/linux/sifiveu/image/Makefile b/target/linux/sifiveu/image/Makefile new file mode 100644 index 00000000000..ef3b13eeec4 --- /dev/null +++ b/target/linux/sifiveu/image/Makefile @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Copyright (C) 2022 Toco Technologies +# +include $(TOPDIR)/rules.mk +include $(INCLUDE_DIR)/image.mk + +FAT32_BLOCK_SIZE=1024 +FAT32_BLOCKS=$(shell echo $$(($(CONFIG_SIFIVEU_SD_BOOT_PARTSIZE)*1024*1024/$(FAT32_BLOCK_SIZE)))) + +KERNEL_LOADADDR:=0x80200000 + +define Build/riscv-sdcard + rm -f $@.boot #$(KDIR_TMP)/$(IMG_PREFIX)-$(PROFILE)-boot.img + mkfs.fat $@.boot -C $(FAT32_BLOCKS) + + mcopy -i $@.boot $(STAGING_DIR_IMAGE)/$(DEVICE_NAME)-boot.scr ::boot.scr + mcopy -i $@.boot $(DTS_DIR)/$(DEVICE_DTS).dtb ::dtb + mcopy -i $@.boot $(IMAGE_KERNEL) ::Image + + ./gen_sifiveu_sdcard_img.sh \ + $@ \ + $@.boot \ + $(IMAGE_ROOTFS) \ + $(CONFIG_SIFIVEU_SD_BOOT_PARTSIZE) \ + $(CONFIG_TARGET_ROOTFS_PARTSIZE) \ + $(STAGING_DIR_IMAGE)/$(DEVICE_NAME)-u-boot.itb \ + $(STAGING_DIR_IMAGE)/$(DEVICE_NAME)-u-boot.itb-spl +endef + +define Device/Default + PROFILES := Default + KERNEL_NAME := Image + KERNEL := kernel-bin | libdeflate-gzip + IMAGES := sdcard.img.gz + IMAGE/sdcard.img.gz := riscv-sdcard | append-metadata | gzip +endef + +define Device/sifive_unleashed + DEVICE_VENDOR := SiFive + DEVICE_MODEL := Unleashed (FU540) + DEVICE_DTS := sifive/hifive-unleashed-a00 + UBOOT := sifive_unleashed +endef +TARGET_DEVICES += sifive_unleashed + +define Device/sifive_unmatched + DEVICE_VENDOR := SiFive + DEVICE_MODEL := Unmatched (FU740) + DEVICE_DTS := sifive/hifive-unmatched-a00 + DEVICE_PACKAGES += kmod-eeprom-at24 kmod-hwmon-lm90 + UBOOT := sifive_unmatched +endef +TARGET_DEVICES += sifive_unmatched + +$(eval $(call BuildImage)) diff --git a/target/linux/sifiveu/image/gen_sifiveu_sdcard_img.sh b/target/linux/sifiveu/image/gen_sifiveu_sdcard_img.sh new file mode 100755 index 00000000000..172f62485d8 --- /dev/null +++ b/target/linux/sifiveu/image/gen_sifiveu_sdcard_img.sh @@ -0,0 +1,28 @@ +#!/usr/bin/env bash +# SPDX-License-Identifier: GPL-2.0-only +# +# Copyright (C) 2022 OpenWrt.org +# + +set -ex +[ $# -eq 7 ] || { + echo "SYNTAX: $0 " + exit 1 +} + +OUTPUT="$1" +BOOTFS="$2" +ROOTFS="$3" +BOOTFSSIZE="$4" +ROOTFSSIZE="$5" +UBOOT="$6" +UBOOT_SPL="$7" + +set $(ptgen -o $OUTPUT -v -g -T sifiveu_spl -N loader1 -p 1024 -T sifiveu_uboot -N loader2 -p 4096 -t ef -N boot -p ${BOOTFSSIZE}M -N rootfs -p ${ROOTFSSIZE}M) + +ROOTFSOFFSET=$(($7 / 512)) + +dd bs=512 if="$UBOOT_SPL" of="$OUTPUT" seek=34 conv=notrunc +dd bs=512 if="$UBOOT" of="$OUTPUT" seek=2082 conv=notrunc +dd bs=512 if="$BOOTFS" of="$OUTPUT" seek=10274 conv=notrunc +dd bs=512 if="$ROOTFS" of="$OUTPUT" seek=${ROOTFSOFFSET} conv=notrunc diff --git a/target/linux/sifiveu/patches-5.15/0001-riscv-sifive-fu740-cpu-1-2-3-4-set-compatible-to-sif.patch b/target/linux/sifiveu/patches-5.15/0001-riscv-sifive-fu740-cpu-1-2-3-4-set-compatible-to-sif.patch new file mode 100644 index 00000000000..9a1c9681390 --- /dev/null +++ b/target/linux/sifiveu/patches-5.15/0001-riscv-sifive-fu740-cpu-1-2-3-4-set-compatible-to-sif.patch @@ -0,0 +1,49 @@ +From ab5c8f5492cce16ff2104393e2f1fa64a3ff6e88 Mon Sep 17 00:00:00 2001 +From: David Abdurachmanov +Date: Wed, 17 Feb 2021 06:06:14 -0800 +Subject: [PATCH 1/7] riscv: sifive: fu740: cpu{1,2,3,4} set compatible to + sifive,u74-mc + +Signed-off-by: David Abdurachmanov +--- + arch/riscv/boot/dts/sifive/fu740-c000.dtsi | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +--- a/arch/riscv/boot/dts/sifive/fu740-c000.dtsi ++++ b/arch/riscv/boot/dts/sifive/fu740-c000.dtsi +@@ -39,7 +39,7 @@ + }; + }; + cpu1: cpu@1 { +- compatible = "sifive,bullet0", "riscv"; ++ compatible = "sifive,u74-mc", "sifive,bullet0", "riscv"; + d-cache-block-size = <64>; + d-cache-sets = <64>; + d-cache-size = <32768>; +@@ -63,7 +63,7 @@ + }; + }; + cpu2: cpu@2 { +- compatible = "sifive,bullet0", "riscv"; ++ compatible = "sifive,u74-mc", "sifive,bullet0", "riscv"; + d-cache-block-size = <64>; + d-cache-sets = <64>; + d-cache-size = <32768>; +@@ -87,7 +87,7 @@ + }; + }; + cpu3: cpu@3 { +- compatible = "sifive,bullet0", "riscv"; ++ compatible = "sifive,u74-mc", "sifive,bullet0", "riscv"; + d-cache-block-size = <64>; + d-cache-sets = <64>; + d-cache-size = <32768>; +@@ -111,7 +111,7 @@ + }; + }; + cpu4: cpu@4 { +- compatible = "sifive,bullet0", "riscv"; ++ compatible = "sifive,u74-mc", "sifive,bullet0", "riscv"; + d-cache-block-size = <64>; + d-cache-sets = <64>; + d-cache-size = <32768>; diff --git a/target/linux/sifiveu/patches-5.15/0002-riscv-sifive-unmatched-update-regulators-values.patch b/target/linux/sifiveu/patches-5.15/0002-riscv-sifive-unmatched-update-regulators-values.patch new file mode 100644 index 00000000000..ac316e9d9b9 --- /dev/null +++ b/target/linux/sifiveu/patches-5.15/0002-riscv-sifive-unmatched-update-regulators-values.patch @@ -0,0 +1,104 @@ +From 657819ff477dd73cd71075609698aa57ba098d8c Mon Sep 17 00:00:00 2001 +From: David Abdurachmanov +Date: Wed, 15 Sep 2021 07:10:02 -0700 +Subject: [PATCH 2/7] riscv: sifive: unmatched: update regulators values + +These are the regulators values from the schematics for Rev3{A,B} boards. + +Note this is not fully correct as bcore1/bcore2 and bmem/bio are merged, but +it's only supported in v5.15 kernel. See: + +541ee8f640327f951e7039278057827322231ab0 ("regulator: da9063: Add support for +full-current mode.") + +This will be changed for v5.15 kernel based on the patch above. + +Signed-off-by: David Abdurachmanov +--- + .../riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 32 +++++++++++----------- + 1 file changed, 16 insertions(+), 16 deletions(-) + +--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts ++++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts +@@ -73,16 +73,16 @@ + + regulators { + vdd_bcore1: bcore1 { +- regulator-min-microvolt = <900000>; +- regulator-max-microvolt = <900000>; ++ regulator-min-microvolt = <1050000>; ++ regulator-max-microvolt = <1050000>; + regulator-min-microamp = <5000000>; + regulator-max-microamp = <5000000>; + regulator-always-on; + }; + + vdd_bcore2: bcore2 { +- regulator-min-microvolt = <900000>; +- regulator-max-microvolt = <900000>; ++ regulator-min-microvolt = <1050000>; ++ regulator-max-microvolt = <1050000>; + regulator-min-microamp = <5000000>; + regulator-max-microamp = <5000000>; + regulator-always-on; +@@ -137,48 +137,48 @@ + }; + + vdd_ldo3: ldo3 { +- regulator-min-microvolt = <1800000>; +- regulator-max-microvolt = <1800000>; ++ regulator-min-microvolt = <3300000>; ++ regulator-max-microvolt = <3300000>; + regulator-min-microamp = <200000>; + regulator-max-microamp = <200000>; + regulator-always-on; + }; + + vdd_ldo4: ldo4 { +- regulator-min-microvolt = <1800000>; +- regulator-max-microvolt = <1800000>; ++ regulator-min-microvolt = <2500000>; ++ regulator-max-microvolt = <2500000>; + regulator-min-microamp = <200000>; + regulator-max-microamp = <200000>; + regulator-always-on; + }; + + vdd_ldo5: ldo5 { +- regulator-min-microvolt = <1800000>; +- regulator-max-microvolt = <1800000>; ++ regulator-min-microvolt = <3300000>; ++ regulator-max-microvolt = <3300000>; + regulator-min-microamp = <100000>; + regulator-max-microamp = <100000>; + regulator-always-on; + }; + + vdd_ldo6: ldo6 { +- regulator-min-microvolt = <3300000>; +- regulator-max-microvolt = <3300000>; ++ regulator-min-microvolt = <1800000>; ++ regulator-max-microvolt = <1800000>; + regulator-min-microamp = <200000>; + regulator-max-microamp = <200000>; + regulator-always-on; + }; + + vdd_ldo7: ldo7 { +- regulator-min-microvolt = <1800000>; +- regulator-max-microvolt = <1800000>; ++ regulator-min-microvolt = <3300000>; ++ regulator-max-microvolt = <3300000>; + regulator-min-microamp = <200000>; + regulator-max-microamp = <200000>; + regulator-always-on; + }; + + vdd_ldo8: ldo8 { +- regulator-min-microvolt = <1800000>; +- regulator-max-microvolt = <1800000>; ++ regulator-min-microvolt = <3300000>; ++ regulator-max-microvolt = <3300000>; + regulator-min-microamp = <200000>; + regulator-max-microamp = <200000>; + regulator-always-on; diff --git a/target/linux/sifiveu/patches-5.15/0003-riscv-sifive-unmatched-define-PWM-LEDs.patch b/target/linux/sifiveu/patches-5.15/0003-riscv-sifive-unmatched-define-PWM-LEDs.patch new file mode 100644 index 00000000000..661e15905f9 --- /dev/null +++ b/target/linux/sifiveu/patches-5.15/0003-riscv-sifive-unmatched-define-PWM-LEDs.patch @@ -0,0 +1,69 @@ +From 2c2d8ac8c124a2938c9326c14b2dffd46d76b4a8 Mon Sep 17 00:00:00 2001 +From: David Abdurachmanov +Date: Mon, 13 Sep 2021 02:15:37 -0700 +Subject: [PATCH 3/7] riscv: sifive: unmatched: define PWM LEDs + +Add D2 (RGB) and D12 (green) LEDs for SiFive Unmatched board. + +Signed-off-by: David Abdurachmanov +--- + .../riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 41 ++++++++++++++++++++++ + 1 file changed, 41 insertions(+) + +--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts ++++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts +@@ -4,6 +4,8 @@ + #include "fu740-c000.dtsi" + #include + #include ++#include ++#include + + /* Clock frequency (in Hz) of the PCB crystal for rtcclk */ + #define RTCCLK_FREQ 1000000 +@@ -31,6 +33,45 @@ + soc { + }; + ++ pwmleds { ++ compatible = "pwm-leds"; ++ green-d12 { ++ label = "green:d12"; ++ color = ; ++ pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>; ++ active-low = <1>; ++ max-brightness = <255>; ++ linux,default-trigger = "none"; ++ }; ++ ++ green-d2 { ++ label = "green:d2"; ++ color = ; ++ pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>; ++ active-low = <1>; ++ max-brightness = <255>; ++ linux,default-trigger = "none"; ++ }; ++ ++ red-d2 { ++ label = "red:d2"; ++ color = ; ++ pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>; ++ active-low = <1>; ++ max-brightness = <255>; ++ linux,default-trigger = "none"; ++ }; ++ ++ blue-d2 { ++ label = "blue:d2"; ++ color = ; ++ pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>; ++ active-low = <1>; ++ max-brightness = <255>; ++ linux,default-trigger = "none"; ++ }; ++ }; ++ + hfclk: hfclk { + #clock-cells = <0>; + compatible = "fixed-clock"; diff --git a/target/linux/sifiveu/patches-5.15/0004-riscv-sifive-unmatched-add-gpio-poweroff-node.patch b/target/linux/sifiveu/patches-5.15/0004-riscv-sifive-unmatched-add-gpio-poweroff-node.patch new file mode 100644 index 00000000000..6d09628cb3b --- /dev/null +++ b/target/linux/sifiveu/patches-5.15/0004-riscv-sifive-unmatched-add-gpio-poweroff-node.patch @@ -0,0 +1,26 @@ +From 14ede57943bc4209755d08daf93ac7be967d7fbe Mon Sep 17 00:00:00 2001 +From: David Abdurachmanov +Date: Mon, 13 Sep 2021 02:18:30 -0700 +Subject: [PATCH 4/7] riscv: sifive: unmatched: add gpio-poweroff node + +Add gpio-poweroff node to allow powering off the system. + +Signed-off-by: David Abdurachmanov +--- + arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 6 ++++++ + 1 file changed, 6 insertions(+) + +--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts ++++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts +@@ -85,6 +85,11 @@ + clock-frequency = ; + clock-output-names = "rtcclk"; + }; ++ ++ gpio-poweroff { ++ compatible = "gpio-poweroff"; ++ gpios = <&gpio 2 GPIO_ACTIVE_LOW>; ++ }; + }; + + &uart0 { diff --git a/target/linux/sifiveu/patches-5.15/0005-riscv-sifive-unleashed-define-opp-table-cpufreq.patch b/target/linux/sifiveu/patches-5.15/0005-riscv-sifive-unleashed-define-opp-table-cpufreq.patch new file mode 100644 index 00000000000..b5779e09cb0 --- /dev/null +++ b/target/linux/sifiveu/patches-5.15/0005-riscv-sifive-unleashed-define-opp-table-cpufreq.patch @@ -0,0 +1,116 @@ +From d3cf2859a056273400fbdf9d389b75750ff6ca5e Mon Sep 17 00:00:00 2001 +From: David Abdurachmanov +Date: Fri, 14 May 2021 05:27:51 -0700 +Subject: [PATCH 6/7] riscv: sifive: unleashed: define opp table (cpufreq) + +Source: https://github.com/sifive/riscv-linux/commits/dev/paulw/cpufreq-dt-aloe-v5.3-rc4 + +Signed-off-by: David Abdurachmanov +--- + arch/riscv/Kconfig | 8 +++++ + arch/riscv/boot/dts/sifive/fu540-c000.dtsi | 5 ++++ + .../riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 34 ++++++++++++++++++++++ + 3 files changed, 47 insertions(+) + +--- a/arch/riscv/Kconfig ++++ b/arch/riscv/Kconfig +@@ -565,6 +565,14 @@ config BUILTIN_DTB + depends on OF + default y if XIP_KERNEL + ++menu "CPU Power Management" ++ ++source "drivers/cpuidle/Kconfig" ++ ++source "drivers/cpufreq/Kconfig" ++ ++endmenu ++ + menu "Power management options" + + source "kernel/power/Kconfig" +--- a/arch/riscv/boot/dts/sifive/fu540-c000.dtsi ++++ b/arch/riscv/boot/dts/sifive/fu540-c000.dtsi +@@ -30,6 +30,7 @@ + i-cache-size = <16384>; + reg = <0>; + riscv,isa = "rv64imac"; ++ clocks = <&prci PRCI_CLK_COREPLL>; + status = "disabled"; + cpu0_intc: interrupt-controller { + #interrupt-cells = <1>; +@@ -54,6 +55,7 @@ + reg = <1>; + riscv,isa = "rv64imafdc"; + tlb-split; ++ clocks = <&prci PRCI_CLK_COREPLL>; + next-level-cache = <&l2cache>; + cpu1_intc: interrupt-controller { + #interrupt-cells = <1>; +@@ -78,6 +80,7 @@ + reg = <2>; + riscv,isa = "rv64imafdc"; + tlb-split; ++ clocks = <&prci PRCI_CLK_COREPLL>; + next-level-cache = <&l2cache>; + cpu2_intc: interrupt-controller { + #interrupt-cells = <1>; +@@ -102,6 +105,7 @@ + reg = <3>; + riscv,isa = "rv64imafdc"; + tlb-split; ++ clocks = <&prci PRCI_CLK_COREPLL>; + next-level-cache = <&l2cache>; + cpu3_intc: interrupt-controller { + #interrupt-cells = <1>; +@@ -126,6 +130,7 @@ + reg = <4>; + riscv,isa = "rv64imafdc"; + tlb-split; ++ clocks = <&prci PRCI_CLK_COREPLL>; + next-level-cache = <&l2cache>; + cpu4_intc: interrupt-controller { + #interrupt-cells = <1>; +--- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts ++++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts +@@ -84,6 +84,40 @@ + label = "d4"; + }; + }; ++ ++ fu540_c000_opp_table: opp-table { ++ compatible = "operating-points-v2"; ++ opp-shared; ++ ++ opp-350000000 { ++ opp-hz = /bits/ 64 <350000000>; ++ }; ++ opp-700000000 { ++ opp-hz = /bits/ 64 <700000000>; ++ }; ++ opp-999999999 { ++ opp-hz = /bits/ 64 <999999999>; ++ }; ++ opp-1400000000 { ++ opp-hz = /bits/ 64 <1400000000>; ++ }; ++ }; ++}; ++ ++&cpu0 { ++ operating-points-v2 = <&fu540_c000_opp_table>; ++}; ++&cpu1 { ++ operating-points-v2 = <&fu540_c000_opp_table>; ++}; ++&cpu2 { ++ operating-points-v2 = <&fu540_c000_opp_table>; ++}; ++&cpu3 { ++ operating-points-v2 = <&fu540_c000_opp_table>; ++}; ++&cpu4 { ++ operating-points-v2 = <&fu540_c000_opp_table>; + }; + + &uart0 { diff --git a/target/linux/sifiveu/patches-5.15/0006-riscv-sbi-srst-support.patch b/target/linux/sifiveu/patches-5.15/0006-riscv-sbi-srst-support.patch new file mode 100644 index 00000000000..409001bcfa8 --- /dev/null +++ b/target/linux/sifiveu/patches-5.15/0006-riscv-sbi-srst-support.patch @@ -0,0 +1,301 @@ +From mboxrd@z Thu Jan 1 00:00:00 1970 +Return-Path: +X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on + aws-us-west-2-korg-lkml-1.web.codeaurora.org +X-Spam-Level: +X-Spam-Status: No, score=-21.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, + DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, + INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,MSGID_FROM_MTA_HEADER, + SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable + autolearn_force=no version=3.4.0 +Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) + by smtp.lore.kernel.org (Postfix) with ESMTP id 9A34CC48BCD + for ; 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Wed, 9 Jun 2021 + 12:13:47 +0000 +From: Anup Patel +To: Palmer Dabbelt , + Palmer Dabbelt , + Paul Walmsley , Albert Ou +Cc: Atish Patra , + Alistair Francis , + Anup Patel , linux-riscv@lists.infradead.org, + linux-kernel@vger.kernel.org, Anup Patel +Subject: [PATCH v7 1/1] RISC-V: Use SBI SRST extension when available +Date: Wed, 9 Jun 2021 17:43:22 +0530 +Message-Id: <20210609121322.3058-2-anup.patel@wdc.com> +X-Mailer: git-send-email 2.25.1 +In-Reply-To: <20210609121322.3058-1-anup.patel@wdc.com> +References: <20210609121322.3058-1-anup.patel@wdc.com> +X-Originating-IP: [122.172.176.125] +X-ClientProxiedBy: MA1PR0101CA0036.INDPRD01.PROD.OUTLOOK.COM + (2603:1096:a00:22::22) To CO6PR04MB7812.namprd04.prod.outlook.com + (2603:10b6:303:138::6) +MIME-Version: 1.0 +X-MS-Exchange-MessageSentRepresentingType: 1 +Received: from wdc.com (122.172.176.125) by + MA1PR0101CA0036.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a00:22::22) with + Microsoft SMTP Server (version=TLS1_2, + cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4219.21 via Frontend + Transport; 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charset="us-ascii" +Content-Transfer-Encoding: 7bit +Sender: "linux-riscv" +Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org + +The SBI SRST extension provides a standard way to poweroff and +reboot the system irrespective to whether Linux RISC-V S-mode +is running natively (HS-mode) or inside Guest/VM (VS-mode). + +The SBI SRST extension is available in the SBI v0.3 specification. +(Refer, https://github.com/riscv/riscv-sbi-doc/releases/tag/v0.3.0-rc1) + +This patch extends Linux RISC-V SBI implementation to detect +and use SBI SRST extension. + +Signed-off-by: Anup Patel +Reviewed-by: Atish Patra +--- + arch/riscv/include/asm/sbi.h | 24 ++++++++++++++++++++++++ + arch/riscv/kernel/sbi.c | 35 +++++++++++++++++++++++++++++++++++ + 2 files changed, 59 insertions(+) + +--- a/arch/riscv/include/asm/sbi.h ++++ b/arch/riscv/include/asm/sbi.h +@@ -27,6 +27,7 @@ enum sbi_ext_id { + SBI_EXT_IPI = 0x735049, + SBI_EXT_RFENCE = 0x52464E43, + SBI_EXT_HSM = 0x48534D, ++ SBI_EXT_SRST = 0x53525354, + }; + + enum sbi_ext_base_fid { +@@ -70,6 +71,21 @@ enum sbi_hsm_hart_status { + SBI_HSM_HART_STATUS_STOP_PENDING, + }; + ++enum sbi_ext_srst_fid { ++ SBI_EXT_SRST_RESET = 0, ++}; ++ ++enum sbi_srst_reset_type { ++ SBI_SRST_RESET_TYPE_SHUTDOWN = 0, ++ SBI_SRST_RESET_TYPE_COLD_REBOOT, ++ SBI_SRST_RESET_TYPE_WARM_REBOOT, ++}; ++ ++enum sbi_srst_reset_reason { ++ SBI_SRST_RESET_REASON_NONE = 0, ++ SBI_SRST_RESET_REASON_SYS_FAILURE, ++}; ++ + #define SBI_SPEC_VERSION_DEFAULT 0x1 + #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 + #define SBI_SPEC_VERSION_MAJOR_MASK 0x7f +@@ -148,6 +164,14 @@ static inline unsigned long sbi_minor_ve + return sbi_spec_version & SBI_SPEC_VERSION_MINOR_MASK; + } + ++/* Make SBI version */ ++static inline unsigned long sbi_mk_version(unsigned long major, ++ unsigned long minor) ++{ ++ return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << ++ SBI_SPEC_VERSION_MAJOR_SHIFT) | minor; ++} ++ + int sbi_err_map_linux_errno(int err); + #else /* CONFIG_RISCV_SBI */ + static inline int sbi_remote_fence_i(const unsigned long *hart_mask) { return -1; } +--- a/arch/riscv/kernel/sbi.c ++++ b/arch/riscv/kernel/sbi.c +@@ -7,6 +7,7 @@ + + #include + #include ++#include + #include + #include + +@@ -501,6 +502,32 @@ int sbi_remote_hfence_vvma_asid(const un + } + EXPORT_SYMBOL(sbi_remote_hfence_vvma_asid); + ++static void sbi_srst_reset(unsigned long type, unsigned long reason) ++{ ++ sbi_ecall(SBI_EXT_SRST, SBI_EXT_SRST_RESET, type, reason, ++ 0, 0, 0, 0); ++ pr_warn("%s: type=0x%lx reason=0x%lx failed\n", ++ __func__, type, reason); ++} ++ ++static int sbi_srst_reboot(struct notifier_block *this, ++ unsigned long mode, void *cmd) ++{ ++ sbi_srst_reset((mode == REBOOT_WARM || mode == REBOOT_SOFT) ? ++ SBI_SRST_RESET_TYPE_WARM_REBOOT : ++ SBI_SRST_RESET_TYPE_COLD_REBOOT, ++ SBI_SRST_RESET_REASON_NONE); ++ return NOTIFY_DONE; ++} ++ ++static struct notifier_block sbi_srst_reboot_nb; ++ ++static void sbi_srst_power_off(void) ++{ ++ sbi_srst_reset(SBI_SRST_RESET_TYPE_SHUTDOWN, ++ SBI_SRST_RESET_REASON_NONE); ++} ++ + /** + * sbi_probe_extension() - Check if an SBI extension ID is supported or not. + * @extid: The extension ID to be probed. +@@ -608,6 +635,14 @@ void __init sbi_init(void) + } else { + __sbi_rfence = __sbi_rfence_v01; + } ++ if ((sbi_spec_version >= sbi_mk_version(0, 3)) && ++ (sbi_probe_extension(SBI_EXT_SRST) > 0)) { ++ pr_info("SBI SRST extension detected\n"); ++ pm_power_off = sbi_srst_power_off; ++ sbi_srst_reboot_nb.notifier_call = sbi_srst_reboot; ++ sbi_srst_reboot_nb.priority = 192; ++ register_restart_handler(&sbi_srst_reboot_nb); ++ } + } else { + __sbi_set_timer = __sbi_set_timer_v01; + __sbi_send_ipi = __sbi_send_ipi_v01;