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| author | Gabor Juhos <juhosg@openwrt.org> | 2014-01-28 17:20:08 +0000 |
|---|---|---|
| committer | Gabor Juhos <juhosg@openwrt.org> | 2014-01-28 17:20:08 +0000 |
| commit | 4d8098a62b890aba030c7906e35bd52cfdb9c11d (patch) | |
| tree | fa05452ee2d610b0747ad4ee0257e6ccd416abc0 | |
| parent | f555ce40f44dde9563eb2911b9cefa9453d25aa8 (diff) | |
| download | upstream-4d8098a62b890aba030c7906e35bd52cfdb9c11d.tar.gz upstream-4d8098a62b890aba030c7906e35bd52cfdb9c11d.tar.bz2 upstream-4d8098a62b890aba030c7906e35bd52cfdb9c11d.zip | |
AA: ar71xx: fix bad RX sensitivity on newer TL-WDR4300 boards
Backport of r39392.
On recent TL-WDR4300 boards the external LNAs of the 2.4GHz
interface are connected to GPIO lines. Because these GPIO
lines are disabled by default, the RX sensitivity of the
device is quite bad.
Setup the GPIOs of the external LNAs to fix the issue.
[Backport note: the 'ath79_wmac_set_ext_lna_gpio' function
is not available in AA, use the 'gpio_request_one' instead.]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@39408 3c298f89-4303-0410-b956-a3cf2f4a3e73
| -rw-r--r-- | target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c index 7be29555dd..ea4b1c83bd 100644 --- a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c +++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c @@ -37,6 +37,9 @@ #define WDR4300_GPIO_BTN_WPS 16 #define WDR4300_GPIO_BTN_RFKILL 17 +#define WDR4300_GPIO_EXTERNAL_LNA0 18 +#define WDR4300_GPIO_EXTERNAL_LNA1 19 + #define WDR4300_GPIO_USB1_POWER 22 #define WDR4300_GPIO_USB2_POWER 21 @@ -152,6 +155,13 @@ static void __init wdr4300_setup(void) ARRAY_SIZE(wdr4300_gpio_keys), wdr4300_gpio_keys); + gpio_request_one(WDR4300_GPIO_EXTERNAL_LNA0, + GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, + "external LNA0"); + gpio_request_one(WDR4300_GPIO_EXTERNAL_LNA1, + GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED, + "external LNA1"); + ath79_init_mac(tmpmac, mac, -1); ath79_register_wmac(art + WDR4300_WMAC_CALDATA_OFFSET, tmpmac); |