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  3. AR# 45597: PowerPC440 - PLB Peripherals can be in the same 128MByte MCI Address range

AR# 45597

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PowerPC440 - PLB Peripherals can be in the same 128MByte MCI Address range

描述

Is there any restriction on the address of the memory controller interface (MCI) and PLB?

解决方案

Any PLB peripherals can be in the same 128MByte MCI address range.

The address for MCI can be specified by the address template registers (TMPLx_XBAR_MAP).

It divides the 4 GB address space into 128 MB regions.

If the bit corresponding to a 128 MB region is set, that request is forwarded to the MCI.

Otherwise, it is sent to the MPLB.

 
For detail, refer to the section "Address Mapping" in UG200.

EDK recognizes the address mapping and automatically set the register TMPLx_XBAR_MAP, so you do not need to set this register manually.
AR# 45597
日期 09/16/2014
状态 Active
Type 综合文章
器件
IP
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