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[nvs] Add init function for Atmel 93C66 EEPROM

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The 93C66 is identical to the 93C56 in programming interface and
addressing, but twice as large in data storage (4096 bits). It's
used in some RTL8185 wireless cards.

Signed-off-by: Michael Brown <mcb30@etherboot.org>
This commit is contained in:
Joshua Oreman 2009-06-01 18:36:25 -07:00 committed by Michael Brown
parent 558c1a45fe
commit 743ebc2f4b
1 changed files with 13 additions and 0 deletions
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13
src/include/gpxe/threewire.h
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@ -87,6 +87,19 @@ init_at93c56 ( struct spi_device *device, unsigned int organisation ) {
init_at93cx6 ( device, organisation );
}
/**
* Initialise Atmel AT93C66 serial EEPROM
*
* @v device SPI device
* @v organisation Word organisation (8 or 16)
*/
static inline __attribute__ (( always_inline )) void
init_at93c66 ( struct spi_device *device, unsigned int organisation ) {
device->nvs.size = ( 4096 / organisation );
device->address_len = ( ( organisation == 8 ) ? 9 : 8 );
init_at93cx6 ( device, organisation );
}
/** @} */
#endif /* _GPXE_THREEWIRE_H */