[U-Boot-Users] MPC83xx HRCW

[Andre Schwarz]

In "cpu/mpc83xx/start.S" there is a comment :

/*
 * The Hard Reset Configuration Word (HRCW) table is in the first 64
 * (0x40) bytes of flash.  It has 8 bytes, but each byte is repeated 8
 * times so the processor can fetch it out of flash whether the flash
 * is 8, 16, 32, or 64 bits wide (hardware trickery).
 */


This does _not_ hold true for all configurations. Flash is simply one of 
many options ...
Maybe it's true for the Freescale boards.

Other sources of the HRCW can be hard-coded strapping pins or an I2C EEPROM.


Why is there a need to define the HRCW ?




regards,
Andre Schwarz
Matrix Vision

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