iwlwifi: support NVM access (EEPROM/OTP)

Two type of NVM available for devices 1000, 6000 and after, adding
support to read OTP lower blocks if OTP is used instead of EEPROM.

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>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 6e983149b83b..3d50ef99f88d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -89,6 +89,7 @@
 /* EEPROM reads */
 #define CSR_EEPROM_REG          (CSR_BASE+0x02c)
 #define CSR_EEPROM_GP           (CSR_BASE+0x030)
+#define CSR_OTP_GP_REG          (CSR_BASE+0x034)
 #define CSR_GIO_REG             (CSR_BASE+0x03C)
 #define CSR_GP_UCODE            (CSR_BASE+0x044)
 #define CSR_UCODE_DRV_GP1       (CSR_BASE+0x054)
@@ -226,6 +227,10 @@
 #define CSR_EEPROM_GP_VALID_MSK         (0x00000007)
 #define CSR_EEPROM_GP_BAD_SIGNATURE     (0x00000000)
 #define CSR_EEPROM_GP_IF_OWNER_MSK      (0x00000180)
+#define CSR_OTP_GP_REG_DEVICE_SELECT    (0x00010000) /* 0 - EEPROM, 1 - OTP */
+#define CSR_OTP_GP_REG_OTP_ACCESS_MODE  (0x00020000) /* 0 - absolute, 1 - relative */
+#define CSR_OTP_GP_REG_ECC_CORR_STATUS_MSK          (0x00100000) /* bit 20 */
+#define CSR_OTP_GP_REG_ECC_UNCORR_STATUS_MSK        (0x00200000) /* bit 21 */
 
 /* CSR GIO */
 #define CSR_GIO_REG_VAL_L0S_ENABLED     (0x00000002)