On Sun, Jul 28, 2019 at 9:27 PM Lukas Auer <lukas.a...@aisec.fraunhofer.de> wrote: > > This series adds support for SPL to RISC-V U-Boot. Images can be booted > via OpenSBI (FW_DYNAMIC firmware) or by directly jumping to them. In the > former case, OpenSBI and U-Boot proper are bundled as a FIT image and > made available to U-Boot SPL. Currently, only the QEMU board enables > U-Boot SPL with a dedicated configuration. It uses RAM as SPL boot > device. > > On many RISC-V CPUs, the device tree is provided to U-Boot by the > first stage bootloader. This requires changes to U-Boot SPL (patches 1, > 2 and 3), which modify the behavior on other boards as well. > > To test this series, OpenSBI has to be compiled first. The > fw_dynamic.bin binary must be copied into the U-Boot root directory. > Alternatively, the location of the binary can be specified with the > OPENSBI environment variable. U-Boot can then be build as normal using > the configuration qemu-riscv64_spl_defconfig for 64-bit builds or > qemu-riscv32_spl_defconfig for 32-bit builds. The outputs from the build > process are the U-Boot SPL binary (spl/u-boot-spl.bin) and the U-Boot > FIT image (u-boot.itb) containing U-Boot proper and OpenSBI. > > U-Boot can be run in QEMU with the following command. > > qemu-system-riscv64 -nographic -machine virt -kernel spl/u-boot-spl \ > -device loader,file=u-boot.itb,addr=0x80200000 > > Changes in v2: > - Rebase on master and format documentation as reStructuredText > > Lukas Auer (11): > fdtdec: make CONFIG_OF_PRIOR_STAGE available in SPL > Makefile: support building SPL FIT images without device trees > spl: fit: use U-Boot device tree when FIT image has no device tree > riscv: add run mode configuration for SPL > spl: support booting via RISC-V OpenSBI > riscv: add SPL support > riscv: support SPL stack and global data relocation > riscv: add a generic FIT generator script > riscv: set default FIT generator script and build target for SPL > builds > riscv: qemu: add SPL configuration > doc: update QEMU RISC-V documentation > > Kconfig | 4 +- > Makefile | 8 +- > arch/Kconfig | 6 ++ > arch/riscv/Kconfig | 36 +++++++-- > arch/riscv/cpu/ax25/Kconfig | 6 +- > arch/riscv/cpu/cpu.c | 6 +- > arch/riscv/cpu/generic/Kconfig | 5 +- > arch/riscv/cpu/start.S | 62 ++++++++++++++- > arch/riscv/cpu/u-boot-spl.lds | 82 +++++++++++++++++++ > arch/riscv/include/asm/encoding.h | 2 +- > arch/riscv/include/asm/spl.h | 31 ++++++++ > arch/riscv/lib/Makefile | 8 +- > arch/riscv/lib/mkimage_fit_opensbi.sh | 100 ++++++++++++++++++++++++ > arch/riscv/lib/spl.c | 48 ++++++++++++ > board/emulation/qemu-riscv/Kconfig | 10 +++ > board/emulation/qemu-riscv/MAINTAINERS | 2 + > board/emulation/qemu-riscv/qemu-riscv.c | 17 ++++ > common/image.c | 1 + > common/spl/Kconfig | 17 ++++ > common/spl/Makefile | 1 + > common/spl/spl.c | 8 +- > common/spl/spl_fit.c | 37 ++++++--- > common/spl/spl_opensbi.c | 85 ++++++++++++++++++++ > configs/qemu-riscv32_spl_defconfig | 11 +++ > configs/qemu-riscv64_spl_defconfig | 12 +++ > doc/board/emulation/qemu-riscv.rst | 60 +++++++++++++- > include/configs/qemu-riscv.h | 14 ++++ > include/fdtdec.h | 2 +- > include/image.h | 1 + > include/opensbi.h | 40 ++++++++++ > include/spl.h | 5 ++ > lib/fdtdec.c | 6 +- > 32 files changed, 691 insertions(+), 42 deletions(-) > create mode 100644 arch/riscv/cpu/u-boot-spl.lds > create mode 100644 arch/riscv/include/asm/spl.h > create mode 100755 arch/riscv/lib/mkimage_fit_opensbi.sh > create mode 100644 arch/riscv/lib/spl.c > create mode 100644 common/spl/spl_opensbi.c > create mode 100644 configs/qemu-riscv32_spl_defconfig > create mode 100644 configs/qemu-riscv64_spl_defconfig > create mode 100644 include/opensbi.h > > -- > 2.21.0 >
Hi Lukas, Amazing work !!! Very nice and clean... I will try to play around with it on QEMU. Thanks & Regards, Anup _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
