diff options
| author | Elias Oltmanns <eo@nebensachen.de> | 2008-10-29 14:25:42 +0100 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-10-29 17:54:35 -0400 |
| commit | 7d19267b8d1e12c0baebf9be96e04cddffe63f67 (patch) | |
| tree | 3cbe98a37518a7fa6aa2444eaf25ef743e2951b0 /drivers/net/wireless/ath5k/reset.c | |
| parent | 5dc5340cfc00097e79d9d787567d311e898aaa84 (diff) | |
| download | kernel_samsung_smdk4412-7d19267b8d1e12c0baebf9be96e04cddffe63f67.zip kernel_samsung_smdk4412-7d19267b8d1e12c0baebf9be96e04cddffe63f67.tar.gz kernel_samsung_smdk4412-7d19267b8d1e12c0baebf9be96e04cddffe63f67.tar.bz2 | |
ath5k: Fix reset sequence for AR5212 in general and RF5111 in particular
Take care to handle register 0xa228 exactly as in the HAL released by
Atheros. This change is required to make ath5k work again on my system
since commit 2203d6be (ath5k: Misc hw_reset updates), thus fixing a
regression in 2.6.27 and therefore hopefully eligible for inclusion into
a stable release.
v2: Only overwrite initial register values on later revisions of AR5212
chips.
v3: Use standard macros to manipulate the register.
Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath5k/reset.c')
| -rw-r--r-- | drivers/net/wireless/ath5k/reset.c | 22 |
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/net/wireless/ath5k/reset.c b/drivers/net/wireless/ath5k/reset.c index 8f18868..1b6d45b 100644 --- a/drivers/net/wireless/ath5k/reset.c +++ b/drivers/net/wireless/ath5k/reset.c @@ -537,9 +537,10 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode, mdelay(1); /* - * Write some more initial register settings + * Write some more initial register settings for revised chips */ - if (ah->ah_version == AR5K_AR5212) { + if (ah->ah_version == AR5K_AR5212 && + ah->ah_phy_revision > 0x41) { ath5k_hw_reg_write(ah, 0x0002a002, 0x982c); if (channel->hw_value == CHANNEL_G) @@ -558,19 +559,10 @@ int ath5k_hw_reset(struct ath5k_hw *ah, enum nl80211_iftype op_mode, else ath5k_hw_reg_write(ah, 0x00000000, 0x994c); - /* Some bits are disabled here, we know nothing about - * register 0xa228 yet, most of the times this ends up - * with a value 0x9b5 -haven't seen any dump with - * a different value- */ - /* Got this from decompiling binary HAL */ - data = ath5k_hw_reg_read(ah, 0xa228); - data &= 0xfffffdff; - ath5k_hw_reg_write(ah, data, 0xa228); - - data = ath5k_hw_reg_read(ah, 0xa228); - data &= 0xfffe03ff; - ath5k_hw_reg_write(ah, data, 0xa228); - data = 0; + /* Got this from legacy-hal */ + AR5K_REG_DISABLE_BITS(ah, 0xa228, 0x200); + + AR5K_REG_MASKED_BITS(ah, 0xa228, 0x800, 0xfffe03ff); /* Just write 0x9b5 ? */ /* ath5k_hw_reg_write(ah, 0x000009b5, 0xa228); */ |