Hi Bin, On Tue, 2019-07-23 at 16:32 +0800, Bin Meng wrote: > Hi Lukas, > > On Mon, Jul 22, 2019 at 2:00 AM 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 get > > feedback on this, I am therefore sending this series as RFC first. > > > > 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 > > > > Nice job done! It looks the SPL support was cleanly implemented. >
Thank you very much! :) > I've tested this series, on qemu-riscv64 with UP and SMP, both work fine. > However when testing on qemu-riscv32, the U-Boot proper does not boot. > Please have a look. > > Regards, > Bin Thank you for reviewing and testing the series! Do you mean that the U-Boot prompt does not appear? Testing the series on qemu-riscv32, I get the U-Boot prompt from U-Boot proper. I did not try to boot Linux on qemu-riscv32, however. I will try that tomorrow. Thanks, Lukas _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot