ar71xx: improve support for TP-Link CPE510 v2

This fixes commit bae927c551fd ("ar71xx: add support for TP-LINK CPE510
V2.0") where the support for this device wasn't optimal.

Device support for the CPE510v2 so far has been a hack to enable
flashing with CPE510v1 images. Those even have different hardware (e.g.
additional ethernet port).

With this patch, we provide proper support for this device in ar71xx.

Installation:
- Flash factory image through stock firmware WEB UI or through TFTP
- To get to TFTP recovery just hold reset button while powering on
  for around 4-5 seconds and release.
- Rename factory image to recovery.bin
- Stock TFTP server IP: 192.168.0.100
- Stock device TFTP address: 192.168.0.254

Fixes: bae927c551fd ("ar71xx: add support for TP-LINK CPE510 V2.0")
Signed-off-by: Andrew Cameron <apcameron@softhome.net>
[Rebased onto revert commit, changed comments in mach-cpe510.c,
changed commit title and description, fixed eth0 MAC address,
removed eth1 initialization]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
[squashed revert, added fixes tag]
Signed-off-by: Petr Štetiar <ynezz@true.cz>

4 files changed, 12 insertions, 21 deletions

diff --git a/target/linux/ar71xx/base-files/etc/board.d/01_leds b/target/linux/ar71xx/base-files/etc/board.d/01_leds
index 8fc6fc8eea..0a63820de7 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/01_leds
+++ b/target/linux/ar71xx/base-files/etc/board.d/01_leds
@@ -255,6 +255,7 @@ cpe210|\
 cpe210-v2|\
 cpe210-v3|\
 cpe510|\
+cpe510-v2|\
 wbs210|\
 wbs510)
 	ucidef_set_rssimon "wlan0" "200000" "1"
@@ -265,7 +266,8 @@ wbs510)
 
 	case "$board" in
 	cpe210-v2|\
-	cpe210-v3)
+	cpe210-v3|\
+	cpe510-v2)
 		ucidef_set_led_netdev "lan" "LAN" "tp-link:green:lan0" "eth0"
 		;;
 	*)
diff --git a/target/linux/ar71xx/base-files/etc/board.d/02_network b/target/linux/ar71xx/base-files/etc/board.d/02_network
index 78825af597..5307dd23f2 100755
--- a/target/linux/ar71xx/base-files/etc/board.d/02_network
+++ b/target/linux/ar71xx/base-files/etc/board.d/02_network
@@ -76,6 +76,7 @@ ar71xx_setup_interfaces()
 	cf-e380ac-v2|\
 	cpe210-v2|\
 	cpe210-v3|\
+	cpe510-v2|\
 	dr342|\
 	eap120|\
 	eap300v2|\
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index 894835b14d..03dfbcebf9 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -760,14 +760,11 @@ ar71xx_board_detect() {
 		;;
 	*"CPE510/520")
 		name="cpe510"
+		tplink_pharos_board_detect "$(tplink_pharos_get_model_string | tr -d '\r')"
+		;;
+	*"CPE510 v2")
+		name="cpe510-v2"
 		tplink_pharos_board_detect "$(tplink_pharos_v2_get_model_string)"
-		case $AR71XX_MODEL in
-		'TP-Link CPE510 v2.0')
-			;;
-		*)
-			tplink_pharos_board_detect "$(tplink_pharos_get_model_string | tr -d '\r')"
-			;;
-		esac
 		;;
 	*"CPE830")
 		name="cpe830"
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index b995cdf123..d5570fdf18 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -586,6 +586,7 @@ platform_check_image() {
 		return $?
 		;;
 	cpe210|\
+	cpe510|\
 	eap120|\
 	wbs210|\
 	wbs510)
@@ -597,19 +598,9 @@ platform_check_image() {
 		tplink_pharos_check_image "$1" "01000000" "$(tplink_pharos_v2_get_model_string)" '\0\xff\r' && return 0
 		return 1
 		;;
-	cpe510)
-		local modelstr="$(tplink_pharos_v2_get_model_string)"
-		tplink_pharos_board_detect $modelstr
-		case $AR71XX_MODEL in
-		'TP-Link CPE510 v2.0')
-			tplink_pharos_check_image "$1" "7f454c46" "$modelstr" '\0\xff\r' && return 0
-			return 1
-			;;
-		*)
-			tplink_pharos_check_image "$1" "7f454c46" "$(tplink_pharos_get_model_string)" '' && return 0
-			return 1
-			;;
-		esac
+	cpe510-v2)
+		tplink_pharos_check_image "$1" "7f454c46" "$(tplink_pharos_v2_get_model_string)" '\0\xff\r' && return 0
+		return 1
 		;;
 	a40|\
 	a60|\