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 <>
Signed-off-by: default avatarJohn W. Linville <>
parent a05b5d45
......@@ -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;
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