From 86396b8450fa75a921b8b9bb0424c18ccd1ec64e Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Tue, 28 Jan 2014 17:20:08 +0000 Subject: [PATCH] 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 SVN-Revision: 39408 --- .../ar71xx/files/arch/mips/ath79/mach-tl-wdr4300.c | 10 ++++++++++ 1 file changed, 10 insertions(+) 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); -- 2.30.2