diff options
| author | Gabor Juhos <juhosg@openwrt.org> | 2009-01-14 20:17:08 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-01-29 16:00:33 -0500 |
| commit | 9dbeb91a8b97e2892c04461e28d2bdd0198b719d (patch) | |
| tree | 3ac42d298b739da86a991ed2bd53aa12377cb956 /drivers/net/wireless/ath9k/eeprom.c | |
| parent | 09329d371e57ff9fcb645b8e2cdee1ec8b9b539f (diff) | |
| download | lwn-9dbeb91a8b97e2892c04461e28d2bdd0198b719d.tar.gz lwn-9dbeb91a8b97e2892c04461e28d2bdd0198b719d.zip | |
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>
Diffstat (limited to 'drivers/net/wireless/ath9k/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/ath9k/eeprom.c | 51 |
1 files changed, 3 insertions, 48 deletions
diff --git a/drivers/net/wireless/ath9k/eeprom.c b/drivers/net/wireless/ath9k/eeprom.c index 1ef8b5a70e5b..50cb3883416a 100644 --- a/drivers/net/wireless/ath9k/eeprom.c +++ b/drivers/net/wireless/ath9k/eeprom.c @@ -91,53 +91,11 @@ static inline bool ath9k_hw_get_lower_upper_index(u8 target, u8 *pList, 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 ath9k_hw_eeprom_attach(struct ath_hal *ah) 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 |