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Commit aaa13ca2 authored by Felix Fietkau's avatar Felix Fietkau Committed by John W. Linville
Browse files

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: default avatarFelix Fietkau <nbd@openwrt.org>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent a05b5d45

drivers/net/wireless/ath/ath9k/ar9003_eeprom.c

+15 −0
Original line number Diff line number Diff line
@@ -3271,6 +3271,18 @@ static bool ar9300_check_eeprom_header(struct ath_hw *ah, eeprom_read_op read, 
	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 @@ static int ar9300_eeprom_restore_internal(struct ath_hw *ah, 
	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;