[PATCH 00/20] RISC-V: rework for PBL, VIRT and 64-Bit support
Antony Pavlov
antonynpavlov at gmail.com
Mon Mar 15 08:22:37 GMT 2021
On Sun, 14 Mar 2021 13:27:44 +0100
Ahmad Fatoum <a.fatoum at pengutronix.de> wrote:
Hi!
I'm very glad to see RISC-V support improvement!
Can you please push your RISC-V working branch to github (or other public git repo),
so I can test it too?
At the moment I have at least two out-of tree RISC-V branches that which I want
to rebase on latest barebox with your patches:
* https://github.com/frantony/barebox/tree/20200222.riscv-sifive
contains hacky 64-bit support and add Sifive U500 qemu support.
* https://github.com/litex-hub/barebox/tree/20200727.litex-vexriscv-linux
contains litex SoC with RISC-V 32-bit CPU core support.
It can run linux on Arty, please see
https://github.com/enjoy-digital/litex/issues/413#issuecomment-609047340
It seems, that ethernet driver needs update: https://github.com/litex-hub/barebox/issues/1
I suppose that you can add 'bootm: add RISC-V image type' patch to your series
(I'll send you the patch in a few minutes). The patch used in the litex series.
> 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.
>
> Cheers,
> Ahmad Fatoum (18):
> partitions: don't allocate dma capable memory
> images: make BOARD_ARM_GENERIC_DT available for other arches
> ARM: rename CONFIG_ARM_USE_COMPRESSED_DTB to CONFIG_USE_COMPRESSED_DTB
> 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 CLINT timer
> 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 | 9 +-
> arch/arm/cpu/start.c | 2 +-
> arch/arm/lib64/runtime-offset.S | 2 +-
> arch/arm/mach-at91/Kconfig | 2 +-
> arch/arm/mach-imx/Kconfig | 26 +--
> arch/arm/mach-omap/Kconfig | 2 +-
> arch/riscv/Kconfig | 66 +++++--
> arch/riscv/Makefile | 34 ++--
> 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 | 197 +++++++++++++++++++
> arch/riscv/boot/uncompress.c | 74 +++++++
> arch/riscv/configs/erizo_generic_defconfig | 5 -
> arch/riscv/configs/virt32_defconfig | 117 +++++++++++
> arch/riscv/configs/virt64_defconfig | 118 +++++++++++
> arch/riscv/dts/Makefile | 9 +-
> arch/riscv/include/asm/barebox-riscv.h | 101 ++++++++++
> arch/riscv/include/asm/common.h | 10 +-
> 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/sections.h | 15 ++
> arch/riscv/include/asm/string.h | 21 +-
> 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 | 26 +++
> arch/riscv/lib/memcpy.S | 108 ++++++++++
> arch/riscv/lib/memmove.S | 64 ++++++
> arch/riscv/lib/memset.S | 113 +++++++++++
> arch/riscv/lib/pbl.lds.S | 88 +++++++++
> 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 | 7 +
> drivers/clocksource/Makefile | 1 +
> drivers/clocksource/timer-clint.c | 98 +++++++++
> 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.erizo | 12 ++
> 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 ++++++++++++
> 75 files changed, 2285 insertions(+), 263 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/include/asm/barebox-riscv.h
> create mode 100644 arch/riscv/include/asm/dma.h
> create mode 100644 arch/riscv/include/asm/image.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/power/reset/syscon-poweroff.c
> create mode 100644 drivers/power/reset/syscon-reboot.c
> create mode 100644 images/Makefile.erizo
> create mode 100644 scripts/prelink-riscv.c
> create mode 100644 scripts/prelink-riscv.inc
>
> --
> 2.29.2
>
--
Best regards,
Antony Pavlov
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