mirror of https://gitee.com/openkylin/linux.git
28 lines
1.0 KiB
Plaintext
28 lines
1.0 KiB
Plaintext
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DDR PHY Front End (DPFE) for Broadcom STB
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=========================================
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DPFE and the DPFE firmware provide an interface for the host CPU to
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communicate with the DCPU, which resides inside the DDR PHY.
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There are three memory regions for interacting with the DCPU. These are
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specified in a single reg property.
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Required properties:
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- compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu"
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or "brcm,dpfe-cpu"
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- reg: must reference three register ranges
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- start address and length of the DCPU register space
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- start address and length of the DCPU data memory space
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- start address and length of the DCPU instruction memory space
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- reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem";
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they must be in the same order as the register declarations
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Example:
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dpfe_cpu0: dpfe-cpu@f1132000 {
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compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu";
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reg = <0xf1132000 0x180
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0xf1134000 0x1000
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0xf1138000 0x4000>;
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reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem";
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};
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