Reconfiguring memory to reduce boot time

Details Reconfiguring memory to reduce boot time Reconfiguring memory to reduce boot time

2005-08-30

2005-08-30

Nguyen, T (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C711S142000, C711S143000, C711S144000, C711S154000, C711S155000, C711S170000, C711S171000

Reexamination Certificate

active

06938127

ABSTRACT:
A processor-based system includes a system firmware program that is transferred to a designated region of a memory in response to an initialization (e.g., a boot sequence). When initialized, for example using at least one programmable register, the system firmware program reconfigures the memory from a first configuration (i.e., a default state) to a second configuration to receive a pattern. By changing the memory to the second configuration, the memory may be declared to be a write combining type. For storage into the memory, the pattern may be buffered in one or more data blocks. Once the pattern is stored, the memory may be restored to the first configuration. Buffered data transfers of the pattern may selectively clear the memory thus providing a rapid booting of the processor-based system.

REFERENCES:
patent: 6223258 (2001-04-01), Palanca et al.
patent: 6334171 (2001-12-01), Hill et al.
patent: 6411302 (2002-06-01), Chiraz
patent: 6581148 (2003-06-01), Sadashivaiah et al.
patent: 6678807 (2004-01-01), Thatcher et al.

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