MIPS: BCM47XX: Add support for Netgear WNR1000 V3

This adds support for detecting this model board and registers some LEDs
and buttons.

There are two uncommon things regarding this device:
1) It can use two different "board_id" ID values.
   Unit I have uses "U12H139T00_NETGEAR" value. This magic is also used
   in firmware file header. There are two reports (one from an OpenWrt
   user) of a different "U12H139T50_NETGEAR" magic though.
2) Power LEDs share GPIOs with buttons.
   Amber one seems to share GPIO 2 with WPS button and green one seems
   to share GPIO 3 with reset button. It remains unknown how to support
   them and handle buttons at the same time. For that reason they aren't
   added to the list of supported LEDs.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/19004/
Signed-off-by: James Hogan <jhogan@kernel.org>

arch/mips/bcm47xx/board.c

@@ -172,6 +172,8 @@ struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
 	{{BCM47XX_BOARD_NETGEAR_WNDR4000, "Netgear WNDR4000"}, "U12H181T00_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WNDR4500V1, "Netgear WNDR4500 V1"}, "U12H189T00_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WNDR4500V2, "Netgear WNDR4500 V2"}, "U12H224T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR1000_V3, "Netgear WNR1000 V3"}, "U12H139T50_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WNR2000, "Netgear WNR2000"}, "U12H114T00_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "U12H136T99_NETGEAR"},
 	{{BCM47XX_BOARD_NETGEAR_WNR3500U, "Netgear WNR3500U"}, "U12H136T00_NETGEAR"},

arch/mips/bcm47xx/buttons.c

@@ -411,6 +411,12 @@ bcm47xx_buttons_netgear_wndr4500v1[] __initconst = {
 	BCM47XX_GPIO_KEY(6, KEY_RESTART),
 };
 
+static const struct gpio_keys_button
+bcm47xx_buttons_netgear_wnr1000_v3[] __initconst = {
+	BCM47XX_GPIO_KEY(2, KEY_WPS_BUTTON),
+	BCM47XX_GPIO_KEY(3, KEY_RESTART),
+};
+
 static const struct gpio_keys_button
 bcm47xx_buttons_netgear_wnr3500lv1[] __initconst = {
 	BCM47XX_GPIO_KEY(4, KEY_RESTART),
@@ -670,6 +676,9 @@ int __init bcm47xx_buttons_register(void)
 	case BCM47XX_BOARD_NETGEAR_WNDR4500V1:
 		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr4500v1);
 		break;
+	case BCM47XX_BOARD_NETGEAR_WNR1000_V3:
+		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wnr1000_v3);
+		break;
 	case BCM47XX_BOARD_NETGEAR_WNR3500L:
 		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wnr3500lv1);
 		break;

arch/mips/bcm47xx/leds.c

@@ -497,6 +497,12 @@ bcm47xx_leds_netgear_wndr4500v1[] __initconst = {
 	BCM47XX_GPIO_LED(14, "green", "usb2", 1, LEDS_GPIO_DEFSTATE_OFF),
 };
 
+static const struct gpio_led
+bcm47xx_leds_netgear_wnr1000_v3[] __initconst = {
+	BCM47XX_GPIO_LED(0, "blue", "wlan", 0, LEDS_GPIO_DEFSTATE_OFF),
+	BCM47XX_GPIO_LED(1, "green", "wps", 0, LEDS_GPIO_DEFSTATE_OFF),
+};
+
 static const struct gpio_led
 bcm47xx_leds_netgear_wnr3500lv1[] __initconst = {
 	BCM47XX_GPIO_LED(0, "blue", "wlan", 1, LEDS_GPIO_DEFSTATE_OFF),
@@ -758,6 +764,9 @@ void __init bcm47xx_leds_register(void)
 	case BCM47XX_BOARD_NETGEAR_WNDR4500V1:
 		bcm47xx_set_pdata(bcm47xx_leds_netgear_wndr4500v1);
 		break;
+	case BCM47XX_BOARD_NETGEAR_WNR1000_V3:
+		bcm47xx_set_pdata(bcm47xx_leds_netgear_wnr1000_v3);
+		break;
 	case BCM47XX_BOARD_NETGEAR_WNR3500L:
 		bcm47xx_set_pdata(bcm47xx_leds_netgear_wnr3500lv1);
 		break;

arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h

@@ -110,6 +110,7 @@ enum bcm47xx_board {
 	BCM47XX_BOARD_NETGEAR_WNDR4000,
 	BCM47XX_BOARD_NETGEAR_WNDR4500V1,
 	BCM47XX_BOARD_NETGEAR_WNDR4500V2,
+	BCM47XX_BOARD_NETGEAR_WNR1000_V3,
 	BCM47XX_BOARD_NETGEAR_WNR2000,
 	BCM47XX_BOARD_NETGEAR_WNR3500L,
 	BCM47XX_BOARD_NETGEAR_WNR3500U,