ar71xx: Fix WD My Net N600 weak signal issue

[openwrt/staging/yousong.git] / target / linux / ar71xx / files / arch / mips / ath79 / mach-mynet-n600.c

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n600.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n600.c
index 476cff8d2e5d104fc34c32de86f790eb014d8159..9e785ca163a11d3cbef2f8c24d687fbf9c3efc6f 100644 (file)
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n600.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-mynet-n600.c
@@ -42,6 +42,9 @@
 #define MYNET_N600_GPIO_BTN_RESET      16
 #define MYNET_N600_GPIO_BTN_WPS                17
 
+#define MYNET_N600_GPIO_EXTERNAL_LNA0  14
+#define MYNET_N600_GPIO_EXTERNAL_LNA1  15
+
 #define MYNET_N600_KEYS_POLL_INTERVAL  20      /* msecs */
 #define MYNET_N600_KEYS_DEBOUNCE_INTERVAL (3 * MYNET_N600_KEYS_POLL_INTERVAL)
 
@@ -152,6 +155,18 @@ static void __init mynet_n600_setup(void)
                                        ARRAY_SIZE(mynet_n600_gpio_keys),
                                        mynet_n600_gpio_keys);
 
+       /*
+        * Control signal for external LNAs 0 and 1
+        * Taken from GPL bootloader source:
+        *   board/ar7240/db12x/alpha_gpio.c
+        */
+       gpio_request_one(MYNET_N600_GPIO_EXTERNAL_LNA0,
+                        GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+                        "External LNA0");
+       gpio_request_one(MYNET_N600_GPIO_EXTERNAL_LNA1,
+                        GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+                        "External LNA1");
+
        mynet_n600_get_mac("wlan24mac=", tmpmac);
        ath79_register_wmac(art + MYNET_N600_WMAC_CALDATA_OFFSET, tmpmac);