iwlwifi: validate the signature for EEPROM and OTP

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Both 1000 & 6000 series NICs contain on-chip OTP memory that
replaces the off-chip EEPROM memory. The nature of OTP means
there is a limited number of times a particular board can go through the
factory flow and be (re)calibrated. As a consequence there will be some boards
that contain EEPROM memory because OTP blocks were full.

In the signature validation routine, iwlwifi needs to make sure
"select bit" and "EEPROM/OTP signature" agree on the type of
NVM to be used to configure the system.

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

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Wey-Yi Guy 2009-10-02 13:44:06 -07:00 • committed by John W. Linville

parent 1739d33220

commit f41bb897f2

2 changed files with 34 additions and 6 deletions

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7

drivers/net/wireless/iwlwifi/iwl-csr.h

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33

drivers/net/wireless/iwlwifi/iwl-eeprom.c

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