3f5f0a4475
Convert the MIPS SEAD-3 board support to be a generic board, supported by generic kernels. Because the SEAD-3 boot protocol was defined long ago and we don't want to force a switch to the UHI protocol, SEAD-3 is added as a legacy board which is detected by reading the REVISION register. This may technically not be a valid memory read & future work will include attempting to handle that gracefully. In practice since SEAD-3 is the only legacy board supported by the generic kernel so far the read will only happen on SEAD-3 boards, and even once Malta is converted the same REVISION register exists there too. Other boards such as Boston, Ci20 & Ci40 will use the UHI boot protocol & thus not run any of the legacy board detect functions. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/14354/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
20 lines
581 B
Plaintext
20 lines
581 B
Plaintext
if MIPS_GENERIC
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config LEGACY_BOARDS
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bool
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help
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Select this from your board if the board must use a legacy, non-UHI,
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boot protocol. This will cause the kernel to scan through the list of
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supported machines calling their detect functions in turn if the
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kernel is booted without being provided with an FDT via the UHI
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boot protocol.
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config LEGACY_BOARD_SEAD3
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bool "Support MIPS SEAD-3 boards"
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select LEGACY_BOARDS
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help
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Enable this to include support for booting on MIPS SEAD-3 FPGA-based
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development boards, which boot using a legacy boot protocol.
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endif
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