diff options
author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-11-08 08:39:48 -0500 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2009-11-11 17:09:16 -0500 |
commit | 30e840346c516ad4e36f710fa485933ccc7afa66 (patch) | |
tree | a8489add516573512e64ebd534c07963e5ba3c05 /drivers/net/wireless/rt2x00/rt2800lib.c | |
parent | 4116cb483ec148e30f70408ad0600304a5de2a3c (diff) |
rt2800: add eFuse EEPROM support code to rt2800lib
eFuse EEPROM is used also by USB chips (i.e. RT3070)
so move the needed code from rt2800pci to rt2800lib.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2800lib.c')
-rw-r--r-- | drivers/net/wireless/rt2x00/rt2800lib.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c index d7771eaee049..f207e9fa5b98 100644 --- a/drivers/net/wireless/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/rt2x00/rt2800lib.c | |||
@@ -1659,6 +1659,49 @@ int rt2800_init_rfcsr(struct rt2x00_dev *rt2x00dev) | |||
1659 | } | 1659 | } |
1660 | EXPORT_SYMBOL_GPL(rt2800_init_rfcsr); | 1660 | EXPORT_SYMBOL_GPL(rt2800_init_rfcsr); |
1661 | 1661 | ||
1662 | int rt2800_efuse_detect(struct rt2x00_dev *rt2x00dev) | ||
1663 | { | ||
1664 | u32 reg; | ||
1665 | |||
1666 | rt2800_register_read(rt2x00dev, EFUSE_CTRL, ®); | ||
1667 | |||
1668 | return rt2x00_get_field32(reg, EFUSE_CTRL_PRESENT); | ||
1669 | } | ||
1670 | EXPORT_SYMBOL_GPL(rt2800_efuse_detect); | ||
1671 | |||
1672 | static void rt2800_efuse_read(struct rt2x00_dev *rt2x00dev, unsigned int i) | ||
1673 | { | ||
1674 | u32 reg; | ||
1675 | |||
1676 | rt2800_register_read(rt2x00dev, EFUSE_CTRL, ®); | ||
1677 | rt2x00_set_field32(®, EFUSE_CTRL_ADDRESS_IN, i); | ||
1678 | rt2x00_set_field32(®, EFUSE_CTRL_MODE, 0); | ||
1679 | rt2x00_set_field32(®, EFUSE_CTRL_KICK, 1); | ||
1680 | rt2800_register_write(rt2x00dev, EFUSE_CTRL, reg); | ||
1681 | |||
1682 | /* Wait until the EEPROM has been loaded */ | ||
1683 | rt2800_regbusy_read(rt2x00dev, EFUSE_CTRL, EFUSE_CTRL_KICK, ®); | ||
1684 | |||
1685 | /* Apparently the data is read from end to start */ | ||
1686 | rt2800_register_read(rt2x00dev, EFUSE_DATA3, | ||
1687 | (u32 *)&rt2x00dev->eeprom[i]); | ||
1688 | rt2800_register_read(rt2x00dev, EFUSE_DATA2, | ||
1689 | (u32 *)&rt2x00dev->eeprom[i + 2]); | ||
1690 | rt2800_register_read(rt2x00dev, EFUSE_DATA1, | ||
1691 | (u32 *)&rt2x00dev->eeprom[i + 4]); | ||
1692 | rt2800_register_read(rt2x00dev, EFUSE_DATA0, | ||
1693 | (u32 *)&rt2x00dev->eeprom[i + 6]); | ||
1694 | } | ||
1695 | |||
1696 | void rt2800_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev) | ||
1697 | { | ||
1698 | unsigned int i; | ||
1699 | |||
1700 | for (i = 0; i < EEPROM_SIZE / sizeof(u16); i += 8) | ||
1701 | rt2800_efuse_read(rt2x00dev, i); | ||
1702 | } | ||
1703 | EXPORT_SYMBOL_GPL(rt2800_read_eeprom_efuse); | ||
1704 | |||
1662 | int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev) | 1705 | int rt2800_validate_eeprom(struct rt2x00_dev *rt2x00dev) |
1663 | { | 1706 | { |
1664 | u16 word; | 1707 | u16 word; |