diff options
| author | Gertjan van Wingerde <gwingerde@gmail.com> | 2009-11-08 12:30:35 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-11-11 17:09:11 -0500 |
| commit | a65986824d2552dd76786d5a0012989a64c45ab7 (patch) | |
| tree | 4657fb048baf1c058e77cd19b09f0eaea4540d50 | |
| parent | 748d451028ef037576b57517bc81e62f1fd92250 (diff) | |
rt2x00: Add dynamic detection of eFuse EEPROM in rt2800pci.
Instead of assuming that all rt3090 devices will have an eFuse EEPROM,
do as the legacy Ralink driver, and detect at run-time whether an
eFuse EEPROM is present.
Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.c | 22 | ||||
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2800pci.h | 1 |
2 files changed, 19 insertions, 4 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c index bff870799f64..2f284a6f384e 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.c +++ b/drivers/net/wireless/rt2x00/rt2800pci.c @@ -145,6 +145,15 @@ static void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev) EEPROM_SIZE / sizeof(u16)); } +static int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev) +{ + u32 reg; + + rt2800_register_read(rt2x00dev, EFUSE_CTRL, ®); + + return rt2x00_get_field32(reg, EFUSE_CTRL_PRESENT); +} + static void rt2800pci_efuse_read(struct rt2x00_dev *rt2x00dev, unsigned int i) { @@ -182,6 +191,11 @@ static inline void rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev) { } +static inline int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev) +{ + return 0; +} + static inline void rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev) { } @@ -1091,11 +1105,11 @@ static int rt2800pci_validate_eeprom(struct rt2x00_dev *rt2x00dev) case RT3052: rt2800pci_read_eeprom_soc(rt2x00dev); break; - case RT3090: - rt2800pci_read_eeprom_efuse(rt2x00dev); - break; default: - rt2800pci_read_eeprom_pci(rt2x00dev); + if (rt2800pci_efuse_detect(rt2x00dev)) + rt2800pci_read_eeprom_efuse(rt2x00dev); + else + rt2800pci_read_eeprom_pci(rt2x00dev); break; } diff --git a/drivers/net/wireless/rt2x00/rt2800pci.h b/drivers/net/wireless/rt2x00/rt2800pci.h index 1dbf13270cda..8f944ee8a970 100644 --- a/drivers/net/wireless/rt2x00/rt2800pci.h +++ b/drivers/net/wireless/rt2x00/rt2800pci.h @@ -62,6 +62,7 @@ #define EFUSE_CTRL_ADDRESS_IN FIELD32(0x03fe0000) #define EFUSE_CTRL_MODE FIELD32(0x000000c0) #define EFUSE_CTRL_KICK FIELD32(0x40000000) +#define EFUSE_CTRL_PRESENT FIELD32(0x80000000) /* * EFUSE_DATA0 |