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opensbi/docs/platform/qemu_sifive_u.md
Anup Patel d0bbbbb8fd docs: Add documenation for QEMU platforms 
This patch adds documentation for qemu/virt and
qemu/sifive_u platform supports.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-31 09:33:04 +05:30

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QEMU SiFive Unleashed Machine

The QEMU SiFive Unleashed Machine is an emulation of SiFive Unleashed platform.

To build platform specific library and firmwares, provide PLATFORM=qemu/sifive_u parameter to top-level make.

Platform Options

We don't have any platform specific options for this platform.

Try on QEMU RISC-V 64bit

No Payload

Build:

    make PLATFORM=qemu/virt

Run:

    qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio -kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf

U-Boot Payload

Note: We assume that U-Boot is compiled using qemu-riscv64_smode_defconfig.

Build:

    make PLATFORM=qemu/virt FW_PAYLOAD_PATH=<uboot_build_directory>/u-boot.bin

Run:

    qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio -kernel build/platform/qemu/sifive_u/firmware/fw_payload.elf
    or
    qemu-system-riscv64 -M sifive_u -m 256M -display none -serial stdio -kernel build/platform/qemu/sifive_u/firmware/fw_jump.elf -device loader,file=<uboot_build_directory>/u-boot.bin,addr=0x80200000