From d172ff8c4cbc536bd3b7dbb6d84bee4fa56b3e80 Mon Sep 17 00:00:00 2001 From: Tobias Klaus <tk+ff@meskal.net> Date: Thu, 27 Oct 2016 13:22:11 +0200 Subject: [PATCH] Backport: enable LNA for CPE210 This patch massivly improves the wireless performance of CPE210 Signed-off-by: Tobias Klaus <tk+ff@meskal.net> Tested-by: Tim Niemeyer <tim@tn-x.org> Reviewed-by: Jan Kraus <mayosemmel@gmail.com> Reviewed-by: Tim Niemeyer <tim@tn-x.org> --- ...10-enable-LNA-for-CPE210-220-510-520.patch | 40 +++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 build_patches/openwrt/0005-ar71xx-cpe510-enable-LNA-for-CPE210-220-510-520.patch diff --git a/build_patches/openwrt/0005-ar71xx-cpe510-enable-LNA-for-CPE210-220-510-520.patch b/build_patches/openwrt/0005-ar71xx-cpe510-enable-LNA-for-CPE210-220-510-520.patch new file mode 100644 index 00000000..5f329369 --- /dev/null +++ b/build_patches/openwrt/0005-ar71xx-cpe510-enable-LNA-for-CPE210-220-510-520.patch @@ -0,0 +1,40 @@ +From 94e23bf7409d6cc4c9efb55ed32aba8e5a497966 Mon Sep 17 00:00:00 2001 +From: Alexander Couzens <lynxis@fe80.eu> +Date: Fri, 20 May 2016 13:10:36 +0200 +Subject: [PATCH] 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> +--- + target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c +index 8bf5c0f..5cb052a 100644 +--- target/linux/ar71xx/files/arch/mips/ath79/mach-cpe510.c ++++ 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); +-- +2.10.1 + -- GitLab