Hi Lukas > > From: Lukas Auer [mailto:lukas.a...@aisec.fraunhofer.de] > > Sent: Sunday, July 28, 2019 11:57 PM > > To: u-boot@lists.denx.de > > Cc: Atish Patra; Rick Jian-Zhi Chen(陳建志); Bin Meng; Sagar Kadam; Alistair > > Francis; Anup Patel; Troy Benjegerdes; Lukas Auer; Abel Vesa; Alex Kiernan; > > Alex Marginean; Alexander Graf; Andreas Dannenberg; Andrew F. Davis; Anup > > Patel; Anup Patel; Atish Patra; Chris Packham; Eugeniu Rosca; Heiko > > Schocher; > > Heinrich Schuchardt; Jagan Teki; Jean-Jacques Hiblot; Jens Wiklander; Joe > > Hershberger; Kever Yang; Lokesh Vutla; Lukasz Majewski; Marek Vasut; Marek > > Vasut; Marek Vasut; Markus Klotzbuecher; Michal Simek; Paul Burton; Peng > > Fan; Philipp Tomsich; Philippe Reynes; Ryder Lee; Shawn Guo; Simon Glass; > > Simon Goldschmidt; Stefan Roese; Stefano Babic; Tien Fong Chee; Vignesh R; > > Weijie Gao; Ye Li > > Subject: [PATCH v2 00/11] SPL support for RISC-V > > > > 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 > >
Great job ! I also try to run the spl flow on ax25-ae350 platform. But encounter some problems. I am still debugging. Following is the error message: : U-Boot SPL 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800) Trying to boot from RAM U-Boot 2019.07-10574-ge6ef7ec-dirty (Aug 01 2019 - 10:09:45 +0800) DRAM: exception code: 5 , Load access fault , epc 1212654 , ra 1200ffe ### ERROR ### Please RESET the board ### Do you have some comments ? By the way, please rebase u-boot-riscv/master to avoid some conflictions from Bin's patchs. Thanks Rick > > 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 > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot