[U-Boot-Users] MPC83xx HRCW

Andre Schwarz
2008-03-28T11:12:21Z

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