bcm63xx: add unmodded SERCOMM AD1018 support

Until now only HW modded SPI flash version was supported.

BCM6328 with 64M RAM and 128M NAND.
More info: https://openwrt.org/toh/sercomm/ad1018

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

target/linux/bcm63xx/base-files/etc/board.d/01_leds

@@ -84,6 +84,7 @@ sagem,fast-2704n)
 sagem,fast-2704-v2)
 	ucidef_set_led_usbdev "usb" "USB" "F@ST2704V2:green:usb" "1-1"
 	;;
+sercomm,ad1018|\
 sercomm,ad1018-nor)
 	ucidef_set_led_netdev "wlan0" "WLAN" "AD1018:green:wifi" "wlan0"
 	;;

target/linux/bcm63xx/base-files/etc/board.d/02_network

@@ -132,6 +132,7 @@ netgear,dgnd3700-v1)
 	ucidef_add_switch "switch0" \
 		"1:lan:4" "2:lan:3" "3:lan:2" "4:lan:1" "0:wan" "8t@eth0"
 	;;
+sercomm,ad1018|\
 sercomm,ad1018-nor)
 	ucidef_add_switch "switch0" \
 		"1:lan:3" "2:lan:2" "3:lan:1" "0:wan" "8t@eth0"

target/linux/bcm63xx/base-files/etc/uci-defaults/09_fix_crc

@@ -40,4 +40,7 @@ case "$(board_name)" in
 	zyxel,p870hw-51a-v2)
 		do_fixcrc
 		;;
+	sercomm,ad1018)
+		mtd erase bootflag2
+		;;
 esac

target/linux/bcm63xx/base-files/lib/upgrade/platform.sh

@@ -7,7 +7,8 @@ platform_check_image() {
 	case "$(board_name)" in
 		comtrend,vg-8050|\
 		comtrend,vr-3032u|\
-		netgear,dgnd3700-v2)
+		netgear,dgnd3700-v2|\
+		sercomm,ad1018)
 			# NAND sysupgrade
 			return 0
 			;;
@@ -65,7 +66,8 @@ platform_do_upgrade() {
 	case "$(board_name)" in
 		comtrend,vg-8050|\
 		comtrend,vr-3032u|\
-		netgear,dgnd3700-v2)
+		netgear,dgnd3700-v2|\
+		sercomm,ad1018)
 			REQUIRE_IMAGE_METADATA=1
 			cfe_jffs2_upgrade_tar "$1"
 			;;

target/linux/bcm63xx/dts/bcm6328-sercomm-ad1018.dts

@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/dts-v1/;
+
+#include "bcm6328.dtsi"
+
+#include <dt-bindings/input/input.h>
+
+/ {
+	model = "Sercomm AD1018";
+	compatible = "sercomm,ad1018", "brcm,bcm6328";
+
+	aliases {
+		led-boot = &led_power_green;
+		led-failsafe = &led_power_green;
+		led-running = &led_power_green;
+		led-upgrade = &led_power_green;
+	};
+
+	chosen {
+		bootargs = "rootfstype=squashfs,jffs2 noinitrd console=ttyS0,115200";
+		stdout-path = "serial0:115200n8";
+	};
+
+	keys {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+
+		wps {
+			label = "wps";
+			gpios = <&pinctrl 24 1>;
+			linux,code = <KEY_WPS_BUTTON>;
+			debounce-interval = <60>;
+		};
+
+		wifi {
+			label = "wifi";
+			gpios = <&pinctrl 25 1>;
+			linux,code = <KEY_WLAN>;
+			debounce-interval = <60>;
+		};
+
+		reset {
+			label = "reset";
+			gpios = <&pinctrl 31 1>;
+			linux,code = <KEY_RESTART>;
+			debounce-interval = <60>;
+		};
+	};
+};
+
+&leds {
+	status = "ok";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_leds &pinctrl_serial_led
+		     &pinctrl_ephy0_spd_led &pinctrl_ephy1_act_led
+		     &pinctrl_ephy2_act_led &pinctrl_ephy3_act_led>;
+
+	brcm,serial-leds;
+	brcm,serial-shift-inv;
+	brcm,serial-dat-low;
+
+	led@0 {
+		reg = <0>;
+		active-low;
+		label = "ad1018:red:internet";
+	};
+
+	led@1 {
+		reg = <1>;
+		active-low;
+		label = "ad1018:green:internet";
+	};
+
+	led_power_green: led@8 {
+		reg = <8>;
+		active-low;
+		label = "ad1018:green:power";
+		default-state = "on";
+	};
+
+	led@10 {
+		reg = <10>;
+		active-low;
+		label = "ad1018:green:adsl";
+	};
+
+	led@11 {
+		reg = <11>;
+		active-low;
+		label = "ad1018:red:adsl";
+	};
+
+	led@12 {
+		reg = <12>;
+		active-low;
+		label = "ad1018:green:phone";
+	};
+
+	led@13 {
+		reg = <13>;
+		active-low;
+		label = "ad1018:green:wps";
+	};
+
+	led@14 {
+		reg = <14>;
+		active-low;
+		label = "ad1018:green:wifi";
+	};
+
+	led@15 {
+		reg = <15>;
+		active-low;
+		label = "ad1018:green:usb";
+	};
+
+	led@17 {
+		/* EPHY0 Spd */
+		reg = <17>;
+		brcm,hardware-controlled;
+	};
+};
+
+&nflash {
+	status = "okay";
+
+	nandcs@0 {
+		compatible = "brcm,nandcs";
+		#size-cells = <1>;
+		#address-cells = <1>;
+		reg = <0>;
+		nand-ecc-step-size = <512>;
+		nand-ecc-strength = <15>;
+		nand-on-flash-bbt;
+		brcm,nand-oob-sector-size = <64>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "cferom";
+				reg = <0x0000000 0x0020000>;
+				read-only;
+			};
+
+			partition@20000 {
+				label = "mmap";
+				reg = <0x0020000 0x00a0000>;
+				read-only;
+			};
+
+			partition@c0000 {
+				label = "cferam1";
+				reg = <0x00c0000 0x0140000>;
+				read-only;
+			};
+
+			partition@200000 {
+				label = "cferam2";
+				reg = <0x0200000 0x0140000>;
+				read-only;
+			};
+
+			partition@520000 {
+				compatible = "brcm,wfi-sercomm";
+				label = "wfi";
+				reg = <0x0520000 0x6400000>;
+			};
+
+			partition@6920000 {
+				label = "bootflag1";
+				reg = <0x6920000 0x0140000>;
+			};
+
+			partition@6a60000 {
+				label = "bootflag2";
+				reg = <0x6a60000 0x0140000>;
+			};
+
+			partition@6ba0000 {
+				label = "xml_cfg";
+				reg = <0x6ba0000 0x0280000>;
+				read-only;
+			};
+
+			partition@6e20000 {
+				label = "app_dat";
+				reg = <0x6e20000 0x0280000>;
+				read-only;
+			};
+		};
+	};
+};
+
+&pinctrl {
+	pinctrl_leds: leds {
+		function = "led";
+		pins = "gpio0", "gpio1";
+	};
+};
+
+&uart0 {
+	status = "ok";
+};

target/linux/bcm63xx/image/Makefile

@@ -95,6 +95,31 @@ define Image/FileSystemStrip
 $(firstword $(subst +,$(space),$(subst root.,,$(notdir $(1)))))
 endef
 
+define Build/ad1018-jffs2-cferam
+	mv $@ $@.kernel
+
+	rm -rf $@-cferam
+	mkdir -p $@-cferam
+
+	# CFE RAM JFFS2 partition
+	cp $(KDIR)/bcm63xx-cfe/$(CFE_RAM_FILE) $@-cferam/$(CFE_RAM_JFFS2_NAME)
+	$(call Build/cfe-jffs2,$@-cferam)
+	mv $@ $@.cferam
+
+	# First block of CFE RAM 1 will be destroyed by MMAP
+	dd if=$@.cferam bs=$(BLOCKSIZE) count=1 > $@
+	dd if=$@.cferam >> $@
+	$(call Build/pad-to,896k)
+
+	# CFE RAM 2
+	dd if=$@.cferam >> $@
+
+	# Append kernel @ 4M
+	$(call Build/pad-to,4096k)
+	dd if=$@.kernel >> $@
+	rm -f $@.kernel
+endef
+
 define Build/cfe-bin
 	$(STAGING_DIR_HOST)/bin/imagetag -i $(IMAGE_KERNEL) -f $(IMAGE_ROOTFS) \
 		--output $@ --boardid $(CFE_BOARD_ID) --chipid $(CFE_CHIP_ID) \

target/linux/bcm63xx/image/bcm63xx_nand.mk

@@ -85,3 +85,21 @@ define Device/netgear_dgnd3700-v2
   CFE_WFI_FLASH_TYPE := 2
 endef
 TARGET_DEVICES += netgear_dgnd3700-v2
+
+### Sercomm ###
+define Device/sercomm_ad1018
+  $(Device/bcm63xx-nand)
+  IMAGE/cfe.bin := append-kernel | pad-to $$$$(KERNEL_SIZE) | ad1018-jffs2-cferam | append-ubi | cfe-wfi-tag
+  DEVICE_VENDOR := Sercomm
+  DEVICE_MODEL := AD1018
+  CFE_CHIP_ID := 6328
+  CFE_RAM_FILE := sercomm,ad1018/cferam
+  CFE_RAM_JFFS2_NAME := cferam
+  BLOCKSIZE := 128k
+  PAGESIZE := 2048
+  SUBPAGESIZE := 512
+  VID_HDR_OFFSET := 2048
+  DEVICE_PACKAGES += $(B43_PACKAGES) $(USB2_PACKAGES)
+  CFE_WFI_FLASH_TYPE := 3
+endef
+TARGET_DEVICES += sercomm_ad1018

target/linux/bcm63xx/patches-5.4/561-board_AD1018.patch

@@ -82,10 +82,11 @@
  	&board_AR5381u,
  	&board_AR5387un,
  	&board_963281TAN,
-@@ -2719,6 +2787,7 @@ static struct of_device_id const bcm963x
+@@ -2719,6 +2787,8 @@ static struct of_device_id const bcm963x
  	{ .compatible = "d-link,dsl-274xb-f1", .data = &board_dsl_274xb_f1, },
  	{ .compatible = "nucom,r5010un-v2", .data = &board_R5010UNV2, },
  	{ .compatible = "sagem,fast-2704-v2", .data = &board_FAST2704V2, },
++	{ .compatible = "sercomm,ad1018", .data = &board_AD1018, },
 +	{ .compatible = "sercomm,ad1018-nor", .data = &board_AD1018, },
  #endif
  #ifdef CONFIG_BCM63XX_CPU_6338

target/linux/bcm63xx/patches-5.4/562-board_sr102.patch

@@ -58,7 +58,7 @@
  #endif
  };
  
-@@ -2874,6 +2918,7 @@ static struct of_device_id const bcm963x
+@@ -2875,6 +2919,7 @@ static struct of_device_id const bcm963x
  	{ .compatible = "brcm,bcm963268bu-p300", .data = &board_963268bu_p300, },
  	{ .compatible = "brcm,bcm963269bhr", .data = &board_963269bhr, },
  	{ .compatible = "inteno,vg50", .data = &board_vw6339gu, },

target/linux/bcm63xx/patches-5.4/563-board-VR-3032u.patch

@@ -53,7 +53,7 @@
  	&board_vw6339gu,
  	&board_BSKYB_63168,
  #endif
-@@ -2917,6 +2956,7 @@ static struct of_device_id const bcm963x
+@@ -2918,6 +2957,7 @@ static struct of_device_id const bcm963x
  #ifdef CONFIG_BCM63XX_CPU_63268
  	{ .compatible = "brcm,bcm963268bu-p300", .data = &board_963268bu_p300, },
  	{ .compatible = "brcm,bcm963269bhr", .data = &board_963269bhr, },

target/linux/bcm63xx/patches-5.4/564-board-DGND3700v2.patch

@@ -40,7 +40,7 @@
  	&board_fast2504n,
  #endif
  
-@@ -2934,6 +2960,7 @@ static struct of_device_id const bcm963x
+@@ -2935,6 +2961,7 @@ static struct of_device_id const bcm963x
  	{ .compatible = "bt,home-hub-2-a", .data = &board_homehub2a, },
  #endif
  #ifdef CONFIG_BCM63XX_CPU_6362

target/linux/bcm63xx/patches-5.4/565-board-VG-8050.patch

@@ -38,7 +38,7 @@
  	&board_VR3032u,
  	&board_vw6339gu,
  	&board_BSKYB_63168,
-@@ -2983,6 +3007,7 @@ static struct of_device_id const bcm963x
+@@ -2984,6 +3008,7 @@ static struct of_device_id const bcm963x
  #ifdef CONFIG_BCM63XX_CPU_63268
  	{ .compatible = "brcm,bcm963268bu-p300", .data = &board_963268bu_p300, },
  	{ .compatible = "brcm,bcm963269bhr", .data = &board_963269bhr, },