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16 lines
758 B
Markdown
16 lines
758 B
Markdown
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The MPC106, codenamed "Grackle", is a memory controller and PCI host bridge. Its predecessor was the MPC105, codenamed "Bandit".
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Unlike the CPU, the Grackle runs in little-endian mode in compliance with the PCI standard. This usually means that to get the result in the correct endian, the PowerPC must load and store byte-reversed inputs and results.
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By default, Grackle operates on Address Map B.
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CONFIG_ADDR can be found at any address in the range 0xFEC00000–0xFEDFFFFF, while CONFIG_DAT can be found at any address in the range 0xFEE00000–0xFEEFFFFF
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PCI Config addresses work as follows:
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bus << 16 | device << 11 | function << 8 | offset
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#Revisions
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Revisions under 4.0 could allow up to 75 MHz, whereas 4.0 and newer can allow up to 83 MHz.
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