bcm47xx: add support for NETGEAR R6200 V1

This patch adds supports for the NETGEAR R6200 V1
This device is mainlined in Linux as of 5.4

Specification:
   - SOC: Broadcom BCM4718A1 (480 MHz)
   - Flash: 16MB (Macronix MX25L128)
   - RAM: 128MB DDR2
   - SWITCH: BCM53125
   - Ethernet: 5x GE (1 WAN + 4 LAN, Inverted order)
   - WLAN 2.4G: In SOC
   - WLAN 5GHz: miniPCIe card, BCM4352 (ID: 4360)
   - USB: 1x USB 2.0 port (Type A)
   - Buttons: Reset, WLAN, WPS
   - LED: Amber for Power, others need a workaround
   - UART: 1x UART on PCB

LED Issues: They are controlled by a 74HC164 via bit banging(GPIO 6/7)

Firmware Install Instructions
=============================
Using the device specific .chk, use that file to perform
a normal device upgrade in the OEM admin page.

Signed-off-by: Edward Matijevic <motolav@gmail.com>

2 files changed, 57 insertions, 11 deletions

diff --git a/target/linux/bcm47xx/patches-4.19/032-v5.4-MIPS-BCM47XX-Add-support-for-Netgear-R6200v1.patch b/target/linux/bcm47xx/patches-4.19/032-v5.4-MIPS-BCM47XX-Add-support-for-Netgear-R6200v1.patch
new file mode 100644
index 0000000000..883b7216ce
--- /dev/null
+++ b/target/linux/bcm47xx/patches-4.19/032-v5.4-MIPS-BCM47XX-Add-support-for-Netgear-R6200v1.patch
@@ -0,0 +1,46 @@
+--- a/arch/mips/bcm47xx/board.c
++++ b/arch/mips/bcm47xx/board.c
+@@ -160,6 +160,7 @@ struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
+ 	{{BCM47XX_BOARD_LUXUL_XVW_P30_V1, "Luxul XVW-P30 V1"}, "luxul_xvwp30_v1"},
+ 	{{BCM47XX_BOARD_LUXUL_XWR_600_V1, "Luxul XWR-600 V1"}, "luxul_xwr600_v1"},
+ 	{{BCM47XX_BOARD_LUXUL_XWR_1750_V1, "Luxul XWR-1750 V1"}, "luxul_xwr1750_v1"},
++	{{BCM47XX_BOARD_NETGEAR_R6200_V1, "Netgear R6200 V1"}, "U12H192T00_NETGEAR"},
+ 	{{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
+ 	{{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
+ 	{{BCM47XX_BOARD_NETGEAR_WGR614_V10, "Netgear WGR614 V10"}, "U12H139T01_NETGEAR"},
+--- a/arch/mips/bcm47xx/buttons.c
++++ b/arch/mips/bcm47xx/buttons.c
+@@ -384,6 +384,13 @@ bcm47xx_buttons_motorola_wr850gv2v3[] __initconst = {
+
+ /* Netgear */
+
++static const struct gpio_keys_button
++bcm47xx_buttons_netgear_r6200_v1[] __initconst = {
++	BCM47XX_GPIO_KEY(2, KEY_RFKILL),
++	BCM47XX_GPIO_KEY(3, KEY_RESTART),
++	BCM47XX_GPIO_KEY(4, KEY_WPS_BUTTON),
++};
++
+ static const struct gpio_keys_button
+ bcm47xx_buttons_netgear_wndr3400v1[] __initconst = {
+ 	BCM47XX_GPIO_KEY(4, KEY_RESTART),
+@@ -664,6 +671,9 @@ int __init bcm47xx_buttons_register(void)
+ 		err = bcm47xx_copy_bdata(bcm47xx_buttons_motorola_wr850gv2v3);
+ 		break;
+
++	case BCM47XX_BOARD_NETGEAR_R6200_V1:
++		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_r6200_v1);
++		break;
+ 	case BCM47XX_BOARD_NETGEAR_WNDR3400V1:
+ 		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_wndr3400v1);
+ 		break;
+--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
++++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
+@@ -98,6 +98,7 @@ enum bcm47xx_board {
+ 	BCM47XX_BOARD_MOTOROLA_WR850GP,
+ 	BCM47XX_BOARD_MOTOROLA_WR850GV2V3,
+
++	BCM47XX_BOARD_NETGEAR_R6200_V1,
+ 	BCM47XX_BOARD_NETGEAR_WGR614V8,
+ 	BCM47XX_BOARD_NETGEAR_WGR614V9,
+ 	BCM47XX_BOARD_NETGEAR_WGR614_V10,
diff --git a/target/linux/bcm47xx/patches-4.19/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch b/target/linux/bcm47xx/patches-4.19/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch
index 74060e2181..bde811c195 100644
--- a/target/linux/bcm47xx/patches-4.19/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch
+++ b/target/linux/bcm47xx/patches-4.19/320-MIPS-BCM47XX-Devices-database-update-for-4.x.patch
@@ -8,10 +8,10 @@
  	{{BCM47XX_BOARD_LINKSYS_WRT54G3GV2, "Linksys WRT54G3GV2-VF"}, "WRT54G3GV2-VF", "1.0"},
  	{{BCM47XX_BOARD_LINKSYS_WRT610NV1, "Linksys WRT610N V1"}, "WRT610N", "1.0"},
  	{{BCM47XX_BOARD_LINKSYS_WRT610NV2, "Linksys WRT610N V2"}, "WRT610N", "2.0"},
-@@ -160,9 +161,12 @@ struct bcm47xx_board_type_list1 bcm47xx_
- 	{{BCM47XX_BOARD_LUXUL_XVW_P30_V1, "Luxul XVW-P30 V1"}, "luxul_xvwp30_v1"},
+@@ -161,9 +162,12 @@ struct bcm47xx_board_type_list1 bcm47xx_
  	{{BCM47XX_BOARD_LUXUL_XWR_600_V1, "Luxul XWR-600 V1"}, "luxul_xwr600_v1"},
  	{{BCM47XX_BOARD_LUXUL_XWR_1750_V1, "Luxul XWR-1750 V1"}, "luxul_xwr1750_v1"},
+ 	{{BCM47XX_BOARD_NETGEAR_R6200_V1, "Netgear R6200 V1"}, "U12H192T00_NETGEAR"},
 +	{{BCM47XX_BOARD_NETGEAR_R6300_V1, "Netgear R6300 V1"}, "U12H218T00_NETGEAR"},
  	{{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
  	{{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
@@ -55,8 +55,8 @@
  bcm47xx_buttons_linksys_wrt54g3gv2[] __initconst = {
  	BCM47XX_GPIO_KEY(5, KEY_WIMAX),
  	BCM47XX_GPIO_KEY(6, KEY_RESTART),
-@@ -385,6 +403,17 @@ bcm47xx_buttons_motorola_wr850gv2v3[] __
- /* Netgear */
+@@ -392,6 +410,17 @@ bcm47xx_buttons_netgear_r6200_v1[] __ini
+ };
  
  static const struct gpio_keys_button
 +bcm47xx_buttons_netgear_r6300_v1[] __initconst = {
@@ -73,7 +73,7 @@
  bcm47xx_buttons_netgear_wndr3400v1[] __initconst = {
  	BCM47XX_GPIO_KEY(4, KEY_RESTART),
  	BCM47XX_GPIO_KEY(6, KEY_WPS_BUTTON),
-@@ -471,6 +500,9 @@ int __init bcm47xx_buttons_register(void
+@@ -478,6 +507,9 @@ int __init bcm47xx_buttons_register(void
  	int err;
  
  	switch (board) {
@@ -83,7 +83,7 @@
  	case BCM47XX_BOARD_ASUS_RTN12:
  		err = bcm47xx_copy_bdata(bcm47xx_buttons_asus_rtn12);
  		break;
-@@ -601,6 +633,12 @@ int __init bcm47xx_buttons_register(void
+@@ -608,6 +640,12 @@ int __init bcm47xx_buttons_register(void
  	case BCM47XX_BOARD_LINKSYS_WRT310NV1:
  		err = bcm47xx_copy_bdata(bcm47xx_buttons_linksys_wrt310nv1);
  		break;
@@ -96,10 +96,10 @@
  	case BCM47XX_BOARD_LINKSYS_WRT54G3GV2:
  		err = bcm47xx_copy_bdata(bcm47xx_buttons_linksys_wrt54g3gv2);
  		break;
-@@ -664,6 +702,12 @@ int __init bcm47xx_buttons_register(void
- 		err = bcm47xx_copy_bdata(bcm47xx_buttons_motorola_wr850gv2v3);
+@@ -674,6 +712,12 @@ int __init bcm47xx_buttons_register(void
+ 	case BCM47XX_BOARD_NETGEAR_R6200_V1:
+ 		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_r6200_v1);
  		break;
- 
 +	case BCM47XX_BOARD_NETGEAR_R6300_V1:
 +		err = bcm47xx_copy_bdata(bcm47xx_buttons_netgear_r6300_v1);
 +		break;
@@ -119,10 +119,10 @@
  	BCM47XX_BOARD_LINKSYS_WRT54G3GV2,
  	BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0101,
  	BCM47XX_BOARD_LINKSYS_WRT54G_TYPE_0467,
-@@ -98,9 +99,12 @@ enum bcm47xx_board {
- 	BCM47XX_BOARD_MOTOROLA_WR850GP,
+@@ -99,9 +100,12 @@ enum bcm47xx_board {
  	BCM47XX_BOARD_MOTOROLA_WR850GV2V3,
  
+ 	BCM47XX_BOARD_NETGEAR_R6200_V1,
 +	BCM47XX_BOARD_NETGEAR_R6300_V1,
  	BCM47XX_BOARD_NETGEAR_WGR614V8,
  	BCM47XX_BOARD_NETGEAR_WGR614V9,