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| author | Felix Fietkau <nbd@openwrt.org> | 2011-04-13 21:56:46 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-04-14 15:35:10 -0400 |
| commit | 3a9dddea89eb2132ba919fe04cb3b44a3b1e6db7 (patch) | |
| tree | b828fc097a87e692f1db3e9c5b70c2fa9f383d46 /drivers/net/wireless/ath/ath5k/ahb.c | |
| parent | 32377b6cf75247cbdd0640efb43bef992efe3b68 (diff) | |
| download | kernel_samsung_smdk4412-3a9dddea89eb2132ba919fe04cb3b44a3b1e6db7.zip kernel_samsung_smdk4412-3a9dddea89eb2132ba919fe04cb3b44a3b1e6db7.tar.gz kernel_samsung_smdk4412-3a9dddea89eb2132ba919fe04cb3b44a3b1e6db7.tar.bz2 | |
ath5k: disable 5 GHz support for the dualband PHY chip on dual-radio AR5312
There are two variants of AR5312 dual-band devices, one single-radio
and the other one dual-radio. On the dual-radio board, the first MAC
only supports 5 GHz, even though it has a dual-band PHY. The 2.4 GHz
part of this phy is used in pass-through mode, connecting the second
MAC with the second PHY.
Disable 2.4 GHz for the first MAC on an AR5312, but only if the board
configuration indicates a dual-radio device.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/ahb.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/ahb.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c index 1374e64..ea99827 100644 --- a/drivers/net/wireless/ath/ath5k/ahb.c +++ b/drivers/net/wireless/ath/ath5k/ahb.c @@ -160,6 +160,16 @@ static int ath_ahb_probe(struct platform_device *pdev) else reg |= AR5K_AR5312_ENABLE_WLAN1; __raw_writel(reg, (void __iomem *) AR5K_AR5312_ENABLE); + + /* + * On a dual-band AR5312, the multiband radio is only + * used as pass-through. Disable 2 GHz support in the + * driver for it + */ + if (to_platform_device(sc->dev)->id == 0 && + (bcfg->config->flags & (BD_WLAN0|BD_WLAN1)) == + (BD_WLAN1|BD_WLAN0)) + __set_bit(ATH_STAT_2G_DISABLED, sc->status); } ret = ath5k_init_softc(sc, &ath_ahb_bus_ops); |