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With the upcoming additions of new MPFS boards, separate common documentation to allow this to be reused appropriately and avoid duplication. Signed-off-by: Jamie Gibbons <jamie.gibbons@microchip.com> Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
30 lines
750 B
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30 lines
750 B
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.. SPDX-License-Identifier: GPL-2.0+
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Booting from eMMC using HSS
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---------------------------
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Building U-Boot
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~~~~~~~~~~~~~~~
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1. Add the RISC-V toolchain to your PATH.
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2. Setup ARCH & cross compilation environment variable:
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.. code-block:: none
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export CROSS_COMPILE=<riscv64 toolchain prefix>
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3. make microchip_mpfs_generic_defconfig
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4. make
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Flashing
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~~~~~~~~
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The current U-Boot port is supported in S-mode only and loaded from DRAM.
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A prior stage M-mode firmware/bootloader (e.g HSS with OpenSBI) is required to
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boot the u-boot.bin in S-mode.
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Currently, the u-boot.bin is used as a payload of the HSS firmware (Microchip
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boot-flow) and OpenSBI generic platform fw_payload.bin (with u-boot.bin embedded)
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as HSS payload (Custom boot-flow)
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