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authorBin Meng2019-11-16 16:08:50 +0100
committerAlistair Francis2020-04-29 22:16:36 +0200
commit3ca109c3f8d6225efdfa801252d25f3e526b004a (patch)
tree320c5925140884bfa01a8f00eee99fff7aca407a /target/riscv/cpu_helper.c
parentriscv/sifive_u: Add a serial property to the sifive_u SoC (diff)
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riscv/sifive_u: Add a serial property to the sifive_u machine
At present the board serial number is hard-coded to 1, and passed to OTP model during initialization. Firmware (FSBL, U-Boot) uses the serial number to generate a unique MAC address for the on-chip ethernet controller. When multiple QEMU 'sifive_u' instances are created and connected to the same subnet, they all have the same MAC address hence it creates a unusable network. A new "serial" property is introduced to specify the board serial number. When not given, the default serial number 1 is used. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <1573916930-19068-1-git-send-email-bmeng.cn@gmail.com> [ Changed by AF: - Use the SoC's serial property to pass the info to the SoC - Fixup commit title - Rebase on file restructuring ] Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target/riscv/cpu_helper.c')
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