ath9k: get EEPROM contents from platform data on AHB bus
On the AR913x SOCs we have to provide EEPROM contents via platform_data,
because accessing the flash via MMIO is not safe. Additionally different
boards may store the radio calibration data at different locations.
Changes-licensed-under: ISC
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
Tested-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/eeprom.c b/drivers/net/wireless/ath9k/eeprom.c
index 1ef8b5a..50cb388 100644
--- a/drivers/net/wireless/ath9k/eeprom.c
+++ b/drivers/net/wireless/ath9k/eeprom.c
@@ -91,53 +91,11 @@
return false;
}
-static bool ath9k_hw_eeprom_read(struct ath_hal *ah, u32 off, u16 *data)
-{
- (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));
-
- if (!ath9k_hw_wait(ah,
- AR_EEPROM_STATUS_DATA,
- AR_EEPROM_STATUS_DATA_BUSY |
- AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0)) {
- return false;
- }
-
- *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA),
- AR_EEPROM_STATUS_DATA_VAL);
-
- return true;
-}
-
-static int ath9k_hw_flash_map(struct ath_hal *ah)
-{
- struct ath_hal_5416 *ahp = AH5416(ah);
-
- ahp->ah_cal_mem = ioremap(AR5416_EEPROM_START_ADDR, AR5416_EEPROM_MAX);
-
- if (!ahp->ah_cal_mem) {
- DPRINTF(ah->ah_sc, ATH_DBG_EEPROM,
- "cannot remap eeprom region \n");
- return -EIO;
- }
-
- return 0;
-}
-
-static bool ath9k_hw_flash_read(struct ath_hal *ah, u32 off, u16 *data)
-{
- struct ath_hal_5416 *ahp = AH5416(ah);
-
- *data = ioread16(ahp->ah_cal_mem + off);
-
- return true;
-}
-
static inline bool ath9k_hw_nvram_read(struct ath_hal *ah, u32 off, u16 *data)
{
- if (ath9k_hw_use_flash(ah))
- return ath9k_hw_flash_read(ah, off, data);
- else
- return ath9k_hw_eeprom_read(ah, off, data);
+ struct ath_softc *sc = ah->ah_sc;
+
+ return sc->bus_ops->eeprom_read(ah, off, data);
}
static bool ath9k_hw_fill_4k_eeprom(struct ath_hal *ah)
@@ -2825,9 +2783,6 @@
int status;
struct ath_hal_5416 *ahp = AH5416(ah);
- if (ath9k_hw_use_flash(ah))
- ath9k_hw_flash_map(ah);
-
if (AR_SREV_9285(ah))
ahp->ah_eep_map = EEP_MAP_4KBITS;
else