From: Alexander Couzens <lynxis@fe80.eu>
Date: Fri, 20 May 2016 11:10:36 +0000 (+0200)
Subject: ar71xx/cpe510: enable LNA for CPE210/220/510/520
X-Git-Tag: v17.01.0-rc1~2735
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=94e23bf7409d6cc4c9efb55ed32aba8e5a497966;p=openwrt%2Fstaging%2Fpepe2k.git

ar71xx/cpe510: enable LNA for CPE210/220/510/520

The LNA improves the rx path. Within a simple test setup
it improved the signal from -60dbm to -40dbm.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
---

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c
index 8bf5c0f622..5cb052a84a 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c
@@ -30,6 +30,9 @@
 #define CPE510_GPIO_LED_L3	15
 #define CPE510_GPIO_LED_L4	16
 
+#define CPE510_GPIO_EXTERNAL_LNA0	18
+#define CPE510_GPIO_EXTERNAL_LNA1	19
+
 #define CPE510_GPIO_BTN_RESET	4
 
 #define CPE510_KEYS_POLL_INTERVAL	20 /* msecs */
@@ -93,6 +96,9 @@ static void __init cpe510_setup(void)
 					ARRAY_SIZE(cpe510_gpio_keys),
 					cpe510_gpio_keys);
 
+	ath79_wmac_set_ext_lna_gpio(0, CPE510_GPIO_EXTERNAL_LNA0);
+	ath79_wmac_set_ext_lna_gpio(1, CPE510_GPIO_EXTERNAL_LNA1);
+
 	ath79_register_m25p80(NULL);
 
 	ath79_register_mdio(1, 0);