PATCHv3 changelog:
 * I hate whitespace. v2 is broken, sorry for the noise.

PATCHv2 changelog:
 * got ethernet almost right: eth1 = wan, eth0 = lan ports, reversed
 * added board to sysupgrade support

WDR3500 is similar to WDR3600 except it doesn't have gigabit ethernet,
and has only 1 USB port.

So, this patch (over r35162) adds a new board type, based on
mach-tl-wdr4300.c but replacing ethernet config with one franken-based
on mach-tl-wr841n-v8.c
a huge thanks goes out to Paul Fertser for hours of tireless advice!

Pending issues:

 * Leds are not working at all (except power and wlan_5g)
 * LAN switch ethernet ports are reversed with respect to case label.

[Label] -> soft device
[LAN1] -> eth0.4
[LAN2] -> eth0.3
[LAN3] -> eth0.2
[LAN4] -> eth0.1

Anyone with experience fixing those details that cares to help, will
be much appreciated!

Thanks-to: Paul Fertser <fercer...@gmail.com>

Signed-off-by: Gui Iribarren <g...@altermundi.net>

---
 target/linux/ar71xx/base-files/lib/ar71xx.sh       |    6 +
 .../ar71xx/base-files/lib/upgrade/platform.sh      |    1 +
 target/linux/ar71xx/config-3.7                     |    1 +
 .../ar71xx/files/arch/mips/ath79/mach-tl-wdr3500.c |  153 ++++++++++++++++++++
 target/linux/ar71xx/generic/profiles/tp-link.mk    |    4 +-
 target/linux/ar71xx/image/Makefile                 |    3 +-
 .../610-MIPS-ath79-openwrt-machines.patch          |   27 +++-
 7 files changed, 185 insertions(+), 10 deletions(-)

diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh 
b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index 31b6dde..a11c1c3 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -123,6 +123,9 @@ tplink_board_detect() {
        "342000"*)
                model="TP-Link TL-MR3420"
                ;;
+       "350000"*)
+               model="TP-Link TL-WDR3500"
+               ;;
        "360000"*)
                model="TP-Link TL-WDR3600"
                ;;
@@ -366,6 +369,9 @@ ar71xx_board_detect() {
        *"TL-WA901ND v2")
                name="tl-wa901nd-v2"
                ;;
+       *"TL-WDR3500")
+               name="tl-wdr3500"
+               ;;
        *"TL-WDR3600/4300/4310")
                name="tl-wdr4300"
                ;;
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh 
b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 3d5efdb..a952a9b 100755
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -158,6 +158,7 @@ platform_check_image() {
        tl-wa7510n | \
        tl-wa901nd | \
        tl-wa901nd-v2 | \
+       tl-wdr3500 | \
        tl-wdr4300 | \
        tl-wr703n | \
        tl-wr741nd | \
diff --git a/target/linux/ar71xx/config-3.7 b/target/linux/ar71xx/config-3.7
index a13cf98..80e0e81 100644
--- a/target/linux/ar71xx/config-3.7
+++ b/target/linux/ar71xx/config-3.7
@@ -63,6 +63,7 @@ CONFIG_ATH79_MACH_TL_MR3020=y
 CONFIG_ATH79_MACH_TL_MR3X20=y
 CONFIG_ATH79_MACH_TL_WA901ND=y
 CONFIG_ATH79_MACH_TL_WA901ND_V2=y
+CONFIG_ATH79_MACH_TL_WDR3500=y
 CONFIG_ATH79_MACH_TL_WDR4300=y
 CONFIG_ATH79_MACH_TL_WR1041N_V2=y
 CONFIG_ATH79_MACH_TL_WR1043ND=y
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr3500.c 
b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr3500.c
new file mode 100644
index 0000000..05fe83d
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-tl-wdr3500.c
@@ -0,0 +1,153 @@
+/*
+ *  TP-LINK TL-WDR3500 board support
+ *
+ *  Copyright (C) 2012 Gabor Juhos <juh...@openwrt.org>
+ *  Copyright (C) 2013 Gui Iribarren <g...@altermundi.net>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/pci.h>
+#include <linux/phy.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/ath9k_platform.h>
+#include <linux/ar8216_platform.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-ap9x-pci.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-spi.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+
+#define WDR3500_GPIO_LED_USB1          11
+#define WDR3500_GPIO_LED_WLAN2G                13
+#define WDR3500_GPIO_LED_SYSTEM                14
+#define WDR3500_GPIO_LED_QSS           15
+
+#define WDR3500_GPIO_BTN_WPS           16
+#define WDR3500_GPIO_BTN_RFKILL                17
+
+#define WDR3500_GPIO_USB1_POWER                22
+
+#define WDR3500_KEYS_POLL_INTERVAL     20      /* msecs */
+#define WDR3500_KEYS_DEBOUNCE_INTERVAL (3 * WDR3500_KEYS_POLL_INTERVAL)
+
+#define WDR3500_MAC0_OFFSET            0
+#define WDR3500_MAC1_OFFSET            6
+#define WDR3500_WMAC_CALDATA_OFFSET    0x1000
+#define WDR3500_PCIE_CALDATA_OFFSET    0x5000
+
+static const char *wdr3500_part_probes[] = {
+       "tp-link",
+       NULL,
+};
+
+static struct flash_platform_data wdr3500_flash_data = {
+       .part_probes    = wdr3500_part_probes,
+};
+
+static struct gpio_led wdr3500_leds_gpio[] __initdata = {
+       {
+               .name           = "tp-link:green:qss",
+               .gpio           = WDR3500_GPIO_LED_QSS,
+               .active_low     = 1,
+       },
+       {
+               .name           = "tp-link:green:system",
+               .gpio           = WDR3500_GPIO_LED_SYSTEM,
+               .active_low     = 1,
+       },
+       {
+               .name           = "tp-link:green:usb1",
+               .gpio           = WDR3500_GPIO_LED_USB1,
+               .active_low     = 1,
+       },
+       {
+               .name           = "tp-link:green:wlan2g",
+               .gpio           = WDR3500_GPIO_LED_WLAN2G,
+               .active_low     = 1,
+       },
+};
+
+static struct gpio_keys_button wdr3500_gpio_keys[] __initdata = {
+       {
+               .desc           = "QSS button",
+               .type           = EV_KEY,
+               .code           = KEY_WPS_BUTTON,
+               .debounce_interval = WDR3500_KEYS_DEBOUNCE_INTERVAL,
+               .gpio           = WDR3500_GPIO_BTN_WPS,
+               .active_low     = 1,
+       },
+       {
+               .desc           = "RFKILL switch",
+               .type           = EV_SW,
+               .code           = KEY_RFKILL,
+               .debounce_interval = WDR3500_KEYS_DEBOUNCE_INTERVAL,
+               .gpio           = WDR3500_GPIO_BTN_RFKILL,
+       },
+};
+
+
+static void __init wdr3500_setup(void)
+{
+       u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
+       u8 *art = (u8 *) KSEG1ADDR(0x1fff0000);
+       u8 tmpmac[ETH_ALEN];
+
+       ath79_register_m25p80(&wdr3500_flash_data);
+       ath79_register_leds_gpio(-1, ARRAY_SIZE(wdr3500_leds_gpio),
+                                wdr3500_leds_gpio);
+       ath79_register_gpio_keys_polled(-1, WDR3500_KEYS_POLL_INTERVAL,
+                                       ARRAY_SIZE(wdr3500_gpio_keys),
+                                       wdr3500_gpio_keys);
+
+       ath79_init_mac(tmpmac, mac, 0);
+       ath79_register_wmac(art + WDR3500_WMAC_CALDATA_OFFSET, tmpmac);
+
+       ath79_init_mac(tmpmac, mac, 1);
+       ap9x_pci_setup_wmac_led_pin(0, 0);
+       ap91_pci_init(art + WDR3500_PCIE_CALDATA_OFFSET, tmpmac);
+
+       ath79_setup_ar934x_eth_cfg(AR934X_ETH_CFG_SW_ONLY_MODE);
+
+       ath79_register_mdio(1, 0x0);
+
+       /* LAN */
+       ath79_init_mac(ath79_eth1_data.mac_addr, mac, -1);
+
+       /* GMAC1 is connected to the internal switch */
+       ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+
+       ath79_register_eth(1);
+
+       /* WAN */
+       ath79_init_mac(ath79_eth0_data.mac_addr, mac, 2);
+
+       /* GMAC0 is connected to the PHY4 of the internal switch */
+       ath79_switch_data.phy4_mii_en = 1;
+       ath79_switch_data.phy_poll_mask = BIT(4);
+       ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+       ath79_eth0_data.phy_mask = BIT(4);
+       ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
+
+       ath79_register_eth(0);
+
+       gpio_request_one(WDR3500_GPIO_USB1_POWER,
+                        GPIOF_OUT_INIT_HIGH | GPIOF_EXPORT_DIR_FIXED,
+                        "USB1 power");
+       ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_TL_WDR3500, "TL-WDR3500",
+            "TP-LINK TL-WDR3500",
+            wdr3500_setup);
diff --git a/target/linux/ar71xx/generic/profiles/tp-link.mk 
b/target/linux/ar71xx/generic/profiles/tp-link.mk
index a1018ed..f554e22 100644
--- a/target/linux/ar71xx/generic/profiles/tp-link.mk
+++ b/target/linux/ar71xx/generic/profiles/tp-link.mk
@@ -115,12 +115,12 @@ $(eval $(call Profile,TLWA901))
 
 
 define Profile/TLWDR4300
-       NAME:=TP-LINK TL-WDR3600/4300/4310
+       NAME:=TP-LINK TL-WDR3500/3600/4300/4310
        PACKAGES:=kmod-usb-core kmod-usb2 kmod-ledtrig-usbdev
 endef
 
 define Profile/TLWDR4300/Description
-       Package set optimized for the TP-LINK TL-WDR3600/4300/4310.
+       Package set optimized for the TP-LINK TL-WDR3500/3600/4300/4310.
 endef
 $(eval $(call Profile,TLWDR4300))
 
diff --git a/target/linux/ar71xx/image/Makefile 
b/target/linux/ar71xx/image/Makefile
index f84d117..3375390 100644
--- a/target/linux/ar71xx/image/Makefile
+++ b/target/linux/ar71xx/image/Makefile
@@ -913,6 +913,7 @@ $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWR741NV4,tl-wr741nd-v4,TL
 $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWR841NV8,tl-wr841n-v8,TL-WR841N-v8,ttyS0,115200,0x08410008,1,4Mlzma))
 $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWR1041,tl-wr1041n-v2,TL-WR1041N-v2,ttyS0,115200,0x10410002,1,4Mlzma))
 $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWR2543,tl-wr2543-v1,TL-WR2543N,ttyS0,115200,0x25430001,1,8Mlzma,-v
 3.13.99))
+$(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWDR3500V1,tl-wdr3500-v1,TL-WDR3500,ttyS0,115200,0x35000001,1,8Mlzma))
 $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWDR3600V1,tl-wdr3600-v1,TL-WDR4300,ttyS0,115200,0x36000001,1,8Mlzma))
 $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWDR4300V1,tl-wdr4300-v1,TL-WDR4300,ttyS0,115200,0x43000001,1,8Mlzma))
 $(eval $(call 
SingleProfile,TPLINK-LZMA,$(fs_64kraw),TLWDR4310V1,tl-wdr4310-v1,TL-WDR4300,ttyS0,115200,0x43100001,1,8Mlzma))
@@ -963,7 +964,7 @@ $(eval $(call MultiProfile,TLWR740,TLWR740NV1 TLWR740NV3 
TLWR740NV4))
 $(eval $(call MultiProfile,TLWR741,TLWR741NV1 TLWR741NV2 TLWR741NV4))
 $(eval $(call MultiProfile,TLWR841,TLWR841NV15 TLWR841NV3 TLWR841NV5 
TLWR841NV7 TLWR841NV8))
 $(eval $(call MultiProfile,TLWR941,TLWR941NV2 TLWR941NV3 TLWR941NV4))
-$(eval $(call MultiProfile,TLWDR4300,TLWDR3600V1 TLWDR4300V1 TLWDR4310V1))
+$(eval $(call MultiProfile,TLWDR4300,TLWDR3500V1 TLWDR3600V1 TLWDR4300V1 
TLWDR4310V1))
 $(eval $(call MultiProfile,UBNT,UBNTAIRROUTER UBNTRS UBNTRSPRO UBNTLSSR71 
UBNTBULLETM UBNTROCKETM UBNTNANOM UBNTUNIFI UBNTUNIFIOUTDOOR UAPPRO))
 $(eval $(call MultiProfile,WNDR3700,WNDR3700V1 WNDR3700V2 WNDR3800 WNDRMAC 
WNDRMACV2))
 $(eval $(call MultiProfile,WP543,WP543_2M WP543_4M WP543_8M WP543_16M))
diff --git 
a/target/linux/ar71xx/patches-3.7/610-MIPS-ath79-openwrt-machines.patch 
b/target/linux/ar71xx/patches-3.7/610-MIPS-ath79-openwrt-machines.patch
index 73253bb..259f1ff 100644
--- a/target/linux/ar71xx/patches-3.7/610-MIPS-ath79-openwrt-machines.patch
+++ b/target/linux/ar71xx/patches-3.7/610-MIPS-ath79-openwrt-machines.patch
@@ -1,6 +1,6 @@
 --- a/arch/mips/ath79/machtypes.h
 +++ b/arch/mips/ath79/machtypes.h
-@@ -16,22 +16,112 @@
+@@ -16,22 +16,113 @@
  
  enum ath79_mach_type {
        ATH79_MACH_GENERIC = 0,
@@ -70,6 +70,7 @@
 +      ATH79_MACH_TL_WA7510N_V1,       /* TP-LINK TL-WA7510N v1*/
 +      ATH79_MACH_TL_WA901ND,          /* TP-LINK TL-WA901ND */
 +      ATH79_MACH_TL_WA901ND_V2,       /* TP-LINK TL-WA901ND v2 */
++      ATH79_MACH_TL_WDR3500,          /* TP-LINK TL-WDR3500 */
 +      ATH79_MACH_TL_WDR4300,          /* TP-LINK TL-WDR4300 */
 +      ATH79_MACH_TL_WR1041N_V2,       /* TP-LINK TL-WR1041N v2 */
 +      ATH79_MACH_TL_WR1043ND,         /* TP-LINK TL-WR1043ND */
@@ -216,7 +217,7 @@
  config ATH79_MACH_PB44
        bool "Atheros PB44 reference board"
        select SOC_AR71XX
-@@ -68,6 +148,488 @@ config ATH79_MACH_PB44
+@@ -68,6 +148,499 @@ config ATH79_MACH_PB44
          Say 'Y' here if you want your kernel to support the
          Atheros PB44 reference board.
  
@@ -563,6 +564,17 @@
 +      select ATH79_DEV_M25P80
 +      select ATH79_DEV_WMAC
 +
++config ATH79_MACH_TL_WDR3500
++      bool "TP-LINK TL-WDR3500 board support"
++      select SOC_AR934X
++      select ATH79_DEV_AP9X_PCI if PCI
++      select ATH79_DEV_ETH
++      select ATH79_DEV_GPIO_BUTTONS
++      select ATH79_DEV_LEDS_GPIO
++      select ATH79_DEV_M25P80
++      select ATH79_DEV_USB
++      select ATH79_DEV_WMAC
++
 +config ATH79_MACH_TL_WDR4300
 +      bool "TP-LINK TL-WDR3600/4300/4310 board support"
 +      select SOC_AR934X
@@ -705,7 +717,7 @@
  config ATH79_MACH_UBNT_XM
        bool "Ubiquiti Networks XM/UniFi boards"
        select SOC_AR724X
-@@ -83,6 +645,24 @@ config ATH79_MACH_UBNT_XM
+@@ -83,6 +656,24 @@ config ATH79_MACH_UBNT_XM
          Say 'Y' here if you want your kernel to support the
          Ubiquiti Networks XM (rev 1.0) board.
  
@@ -730,7 +742,7 @@
  endmenu
  
  config SOC_AR71XX
-@@ -118,10 +698,6 @@ config SOC_QCA955X
+@@ -118,10 +709,6 @@ config SOC_QCA955X
        select PCI_AR724X if PCI
        def_bool n
  
@@ -741,7 +753,7 @@
  config ATH79_DEV_AP9X_PCI
        select ATH79_PCI_ATH9K_FIXUP
        def_bool n
-@@ -132,7 +708,14 @@ config ATH79_DEV_DSA
+@@ -132,7 +719,14 @@ config ATH79_DEV_DSA
  config ATH79_DEV_ETH
        def_bool n
  
@@ -757,7 +769,7 @@
        def_bool n
  
  config ATH79_DEV_GPIO_BUTTONS
-@@ -164,4 +747,7 @@ config ATH79_PCI_ATH9K_FIXUP
+@@ -164,4 +758,7 @@ config ATH79_PCI_ATH9K_FIXUP
  config ATH79_ROUTERBOOT
        def_bool n
  
@@ -767,7 +779,7 @@
  endif
 --- a/arch/mips/ath79/Makefile
 +++ b/arch/mips/ath79/Makefile
-@@ -38,9 +38,71 @@ obj-$(CONFIG_ATH79_ROUTERBOOT)              += route
+@@ -38,9 +38,72 @@ obj-$(CONFIG_ATH79_ROUTERBOOT)              += route
  #
  # Machines
  #
@@ -812,6 +824,7 @@
 +obj-$(CONFIG_ATH79_MACH_TL_MR3X20)    += mach-tl-mr3x20.o
 +obj-$(CONFIG_ATH79_MACH_TL_WA901ND)   += mach-tl-wa901nd.o
 +obj-$(CONFIG_ATH79_MACH_TL_WA901ND_V2)        += mach-tl-wa901nd-v2.o
++obj-$(CONFIG_ATH79_MACH_TL_WDR3500)     += mach-tl-wdr3500.o
 +obj-$(CONFIG_ATH79_MACH_TL_WDR4300)     += mach-tl-wdr4300.o
 +obj-$(CONFIG_ATH79_MACH_TL_WR741ND)   += mach-tl-wr741nd.o
 +obj-$(CONFIG_ATH79_MACH_TL_WR741ND_V4)        += mach-tl-wr741nd-v4.o
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