ath9k_hw: support reading calibration data from flash on AR9003
Embedded boards do not have compressed EEPROM data, they use the
struct ar9003_eeprom layout, with little endian fields, so copying
the raw data to the eeprom buffer is enough.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 230a122..9a7e151 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3271,6 +3271,18 @@
return ar9300_check_header(header);
}
+static int ar9300_eeprom_restore_flash(struct ath_hw *ah, u8 *mptr,
+ int mdata_size)
+{
+ struct ath_common *common = ath9k_hw_common(ah);
+ u16 *data = (u16 *) mptr;
+ int i;
+
+ for (i = 0; i < mdata_size / 2; i++, data++)
+ ath9k_hw_nvram_read(common, i, data);
+
+ return 0;
+}
/*
* Read the configuration data from the eeprom.
* The data can be put in any specified memory buffer.
@@ -3293,6 +3305,9 @@
struct ath_common *common = ath9k_hw_common(ah);
eeprom_read_op read;
+ if (ath9k_hw_use_flash(ah))
+ return ar9300_eeprom_restore_flash(ah, mptr, mdata_size);
+
word = kzalloc(2048, GFP_KERNEL);
if (!word)
return -1;