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ar71xx: fix bad RX sensitivity on newer TL-WDR4300 boards 

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.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 39392
owl
Gabor Juhos 2014-01-24 17:40:17 +00:00
parent 09bf46d418
commit f85231257e
1 changed files with 6 additions and 0 deletions
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6
target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c
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@ -37,6 +37,9 @@
#define WDR4300_GPIO_BTN_WPS 16 #define WDR4300_GPIO_BTN_WPS 16
#define WDR4300_GPIO_BTN_RFKILL 17 #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_USB1_POWER 22
#define WDR4300_GPIO_USB2_POWER 21 #define WDR4300_GPIO_USB2_POWER 21
@ -162,6 +165,9 @@ static void __init wdr4300_setup(void)
ARRAY_SIZE(wdr4300_gpio_keys), ARRAY_SIZE(wdr4300_gpio_keys),
wdr4300_gpio_keys); wdr4300_gpio_keys);
ath79_wmac_set_ext_lna_gpio(0, WDR4300_GPIO_EXTERNAL_LNA0);
ath79_wmac_set_ext_lna_gpio(1, WDR4300_GPIO_EXTERNAL_LNA1);
ath79_init_mac(tmpmac, mac, -1); ath79_init_mac(tmpmac, mac, -1);
ath79_register_wmac(art + WDR4300_WMAC_CALDATA_OFFSET, tmpmac); ath79_register_wmac(art + WDR4300_WMAC_CALDATA_OFFSET, tmpmac);