[PATCH v2 00/20] RISC-V: rework for PBL, VIRT and 64-Bit support
Ahmad Fatoum
a.fatoum at pengutronix.de
Tue Mar 16 08:04:45 GMT 2021
With these changes applied, barebox can now generate images that can
be booted on qemu/tinyemu virt32 and virt64 machines.
The boards have clocksource, virtio, cfi-flash, reboot and poweroff
support.
This can also be pulled from Github:
https://github.com/a3f/barebox/tree/multi-image-riscv-v2
v1 -> v2:
- moved compressed dtb helpers into common header for both ARM and
RISC-V to use
- relocate_to_adr(fixed_base) can now be called multiple times in a row
- removed some extra spaces (Antony)
- as arch is DT only, bumped pr_debug to pr_err if dt is not found.
no panic, because with debug_ll you might still be able to boot to shell
for further debugging
- rename Makefile.erizo to Makefile.riscv. Let's just build all board images
out of the same Makefile now
- HAS_ARCH_SJLJ selected for 64-bit as well
- don't require compiler to support atomics or floating point on rv64 (Rouven)
- added RISCV timer for SBI and rdcycle mode. This is used on tinyemu virt.
rdcycle mode could be used on erizo as well if suitable timerbase chosen.
- activate first console because Tinyemu only describes virtio mmio region
for console and no stdout-path
Cheers,
Ahmad Fatoum (18):
partitions: don't allocate dma capable memory
images: make BOARD_ARM_GENERIC_DT available for other arches
ARM: make ARM_USE_COMPRESSED_DTB available for other arches
ARM: aarch64: ommit unused label in assembly
serial: virtio-console: depend on, but don't select VIRTIO
filetype: detect RISC-V Linux kernel image
asm: unaligned: don't do unaligned accesses
RISC-V: debug_ll: ns16550: align C access size with assembly's
RISC-V: drop duplicate or unneeded cflags
RISC-V: add cacheless HAS_DMA support
RISC-V: erizo: move to arch/riscv/boards/erizo
RISC-V: import Linux' optimized string functions
RISC-V: implement PBL and relocation support
RISC-V: erizo: migrate to PBL
RISC-V: support symbol names in barebox image
RISC-V: add generic DT image
clocksource: add driver for RISC-V and CLINT timers
power: reset: add drivers for generic syscon reset and poweroff
Rouven Czerwinski (2):
RISC-V: add 64-bit support
RISC-V: add Qemu virt support
Documentation/boards/riscv.rst | 72 ++++++-
Makefile | 1 +
arch/arm/Kconfig | 7 +-
arch/arm/cpu/start.c | 20 +-
arch/arm/include/asm/barebox-arm.h | 7 -
arch/arm/lib64/runtime-offset.S | 2 +-
arch/riscv/Kconfig | 81 +++++--
arch/riscv/Makefile | 35 ++-
arch/riscv/boards/Makefile | 2 +
arch/riscv/boards/erizo/Makefile | 3 +
arch/riscv/boards/erizo/lowlevel.c | 18 ++
arch/riscv/boot/Makefile | 5 +-
arch/riscv/boot/board-dt-2nd-entry.S | 26 +++
arch/riscv/boot/board-dt-2nd.c | 29 +++
arch/riscv/boot/dtb.c | 25 ---
arch/riscv/boot/entry.c | 33 +++
arch/riscv/boot/entry.h | 15 ++
arch/riscv/boot/entry_ll.S | 15 ++
arch/riscv/boot/main_entry.c | 35 ---
arch/riscv/boot/start.S | 68 ------
arch/riscv/boot/start.c | 185 ++++++++++++++++
arch/riscv/boot/uncompress.c | 74 +++++++
arch/riscv/configs/erizo_generic_defconfig | 5 -
arch/riscv/configs/virt32_defconfig | 116 ++++++++++
arch/riscv/configs/virt64_defconfig | 117 ++++++++++
arch/riscv/cpu/Makefile | 3 +
arch/riscv/cpu/core.c | 50 +++++
arch/riscv/cpu/time.c | 38 ++++
arch/riscv/dts/Makefile | 9 +-
arch/riscv/dts/erizo.dtsi | 2 +-
arch/riscv/include/asm/barebox-riscv.h | 94 +++++++++
arch/riscv/include/asm/common.h | 10 +-
arch/riscv/include/asm/csr.h | 211 +++++++++++++++++++
arch/riscv/include/asm/debug_ll_ns16550.h | 16 +-
arch/riscv/include/asm/dma.h | 44 ++++
arch/riscv/include/asm/elf.h | 8 +-
arch/riscv/include/asm/image.h | 65 ++++++
arch/riscv/include/asm/linkage.h | 4 +
arch/riscv/include/asm/sbi.h | 153 ++++++++++++++
arch/riscv/include/asm/sections.h | 15 ++
arch/riscv/include/asm/string.h | 21 +-
arch/riscv/include/asm/timer.h | 9 +
arch/riscv/include/asm/types.h | 8 +-
arch/riscv/include/asm/unaligned.h | 16 +-
arch/riscv/lib/Makefile | 6 +-
arch/riscv/lib/barebox.lds.S | 55 +++--
arch/riscv/lib/dtb.c | 30 +++
arch/riscv/lib/memcpy.S | 108 ++++++++++
arch/riscv/lib/memmove.S | 64 ++++++
arch/riscv/lib/memset.S | 113 ++++++++++
arch/riscv/lib/pbl.lds.S | 85 ++++++++
arch/riscv/lib/reloc.c | 64 ++++++
arch/riscv/lib/runtime-offset.S | 12 ++
arch/riscv/lib/sections.c | 9 +
arch/riscv/lib/setupc.S | 55 +++++
arch/riscv/mach-virt/Makefile | 3 +
arch/riscv/mach-virt/include/mach/debug_ll.h | 25 +++
common/Kconfig | 8 +-
common/filetype.c | 3 +
common/partitions.c | 5 +-
common/partitions/dos.c | 7 +-
common/partitions/efi.c | 1 -
drivers/clocksource/Kconfig | 15 ++
drivers/clocksource/Makefile | 2 +
drivers/clocksource/timer-clint.c | 93 ++++++++
drivers/clocksource/timer-riscv.c | 66 ++++++
drivers/power/reset/Kconfig | 14 ++
drivers/power/reset/Makefile | 2 +
drivers/power/reset/syscon-poweroff.c | 76 +++++++
drivers/power/reset/syscon-reboot.c | 92 ++++++++
drivers/serial/Kconfig | 2 +-
images/Makefile | 8 +-
images/Makefile.riscv | 12 ++
include/compressed-dtb.h | 33 +++
include/dma.h | 1 +
include/filetype.h | 1 +
pbl/Kconfig | 6 +-
scripts/.gitignore | 1 +
scripts/Makefile | 1 +
scripts/Makefile.lib | 11 +
scripts/prelink-riscv.c | 122 +++++++++++
scripts/prelink-riscv.inc | 123 +++++++++++
82 files changed, 2837 insertions(+), 269 deletions(-)
create mode 100644 arch/riscv/boards/Makefile
create mode 100644 arch/riscv/boards/erizo/Makefile
create mode 100644 arch/riscv/boards/erizo/lowlevel.c
create mode 100644 arch/riscv/boot/board-dt-2nd-entry.S
create mode 100644 arch/riscv/boot/board-dt-2nd.c
delete mode 100644 arch/riscv/boot/dtb.c
create mode 100644 arch/riscv/boot/entry.c
create mode 100644 arch/riscv/boot/entry.h
create mode 100644 arch/riscv/boot/entry_ll.S
delete mode 100644 arch/riscv/boot/main_entry.c
delete mode 100644 arch/riscv/boot/start.S
create mode 100644 arch/riscv/boot/start.c
create mode 100644 arch/riscv/boot/uncompress.c
create mode 100644 arch/riscv/configs/virt32_defconfig
create mode 100644 arch/riscv/configs/virt64_defconfig
create mode 100644 arch/riscv/cpu/Makefile
create mode 100644 arch/riscv/cpu/core.c
create mode 100644 arch/riscv/cpu/time.c
create mode 100644 arch/riscv/include/asm/barebox-riscv.h
create mode 100644 arch/riscv/include/asm/csr.h
create mode 100644 arch/riscv/include/asm/dma.h
create mode 100644 arch/riscv/include/asm/image.h
create mode 100644 arch/riscv/include/asm/sbi.h
create mode 100644 arch/riscv/include/asm/timer.h
create mode 100644 arch/riscv/lib/dtb.c
create mode 100644 arch/riscv/lib/memcpy.S
create mode 100644 arch/riscv/lib/memmove.S
create mode 100644 arch/riscv/lib/memset.S
create mode 100644 arch/riscv/lib/pbl.lds.S
create mode 100644 arch/riscv/lib/reloc.c
create mode 100644 arch/riscv/lib/runtime-offset.S
create mode 100644 arch/riscv/lib/sections.c
create mode 100644 arch/riscv/lib/setupc.S
create mode 100644 arch/riscv/mach-virt/Makefile
create mode 100644 arch/riscv/mach-virt/include/mach/debug_ll.h
create mode 100644 drivers/clocksource/timer-clint.c
create mode 100644 drivers/clocksource/timer-riscv.c
create mode 100644 drivers/power/reset/syscon-poweroff.c
create mode 100644 drivers/power/reset/syscon-reboot.c
create mode 100644 images/Makefile.riscv
create mode 100644 include/compressed-dtb.h
create mode 100644 scripts/prelink-riscv.c
create mode 100644 scripts/prelink-riscv.inc
--
2.29.2
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