arm: kirkwood: nsa310s: Add Distro boot capability

- Add distro boot to board include file and deconfig file
- Miscellaneous changes:
	- Remove Gerald from maintainer list (email bounced)
	- Add CONFIG_SUPPORT_PASSING_ATAGS and friends to support legacy
	kernel method of booting (e.g. OpenWrt) with appended DTB.
	- Add CONFIG_UBIFS_SILENCE_MSG to reduce binary size.

Note that this patch is depended on the following patch:
https://patchwork.ozlabs.org/project/uboot/patch/20220807192709.21717-1-pali@kernel.org/

Signed-off-by: Tony Dinh <mibodhi@gmail.com>

board/zyxel/nsa310s/MAINTAINERS

@@ -1,5 +1,4 @@
 NSA310S BOARD
-M:	Gerald Kerma <dreagle@doukki.net>
 M:	Tony Dinh <mibodhi@gmail.com>
 M:	Luka Perkov <luka.perkov@sartura.hr>
 S:	Maintained

configs/nsa310s_defconfig

@@ -4,6 +4,9 @@ CONFIG_SYS_DCACHE_OFF=y
 CONFIG_ARCH_CPU_INIT=y
 CONFIG_SYS_THUMB_BUILD=y
 CONFIG_ARCH_KIRKWOOD=y
+CONFIG_SUPPORT_PASSING_ATAGS=y
+CONFIG_CMDLINE_TAG=y
+CONFIG_INITRD_TAG=y
 CONFIG_SYS_KWD_CONFIG="board/zyxel/nsa310s/kwbimage.cfg"
 CONFIG_SYS_TEXT_BASE=0x600000
 CONFIG_SYS_MALLOC_F_LEN=0x400
@@ -14,35 +17,25 @@ CONFIG_ENV_OFFSET=0xE0000
 CONFIG_DEFAULT_DEVICE_TREE="kirkwood-nsa310s"
 CONFIG_IDENT_STRING="\nZyXEL NSA310S/320S 1/2-Bay Power Media Server"
 CONFIG_SYS_LOAD_ADDR=0x800000
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xc8012000
 CONFIG_BOOTDELAY=3
-CONFIG_USE_BOOTCOMMAND=y
-CONFIG_BOOTCOMMAND="setenv bootargs ${console} ${mtdparts} ${bootargs_root}; ubi part root; ubifsmount ubi:rootfs; ubifsload 0x800000 ${kernel}; ubifsload 0x700000 ${fdt}; ubifsumount; fdt addr 0x700000; fdt resize; fdt chosen; bootz 0x800000 - 0x700000"
 CONFIG_USE_PREBOOT=y
 # CONFIG_DISPLAY_BOARDINFO is not set
-CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="NSA310s> "
 CONFIG_SYS_MAXARGS=32
 CONFIG_SYS_PBSIZE=1050
-CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_NAND=y
 CONFIG_CMD_SATA=y
 CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
-CONFIG_CMD_DHCP=y
-CONFIG_CMD_MII=y
-CONFIG_CMD_PING=y
-CONFIG_CMD_EXT2=y
-CONFIG_CMD_FAT=y
-CONFIG_CMD_FS_GENERIC=y
 CONFIG_CMD_JFFS2=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nand0=orion_nand"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=orion_nand:0xe0000@0x0(uboot),0x20000@0xe0000(uboot_env),0x100000@0x100000(second_stage_uboot),-@0x200000(root)"
 CONFIG_CMD_UBI=y
-CONFIG_ISO_PARTITION=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_OVERWRITE=y
 CONFIG_ENV_IS_IN_NAND=y
@@ -65,6 +58,6 @@ CONFIG_MII=y
 CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_STORAGE=y
+CONFIG_UBIFS_SILENCE_MSG=y
 CONFIG_LZMA=y
 CONFIG_BZIP2=y

include/configs/nsa310s.h

@@ -9,15 +9,42 @@
 #ifndef _CONFIG_NSA310S_H
 #define _CONFIG_NSA310S_H
 
+/*
+ * mv-common.h should be defined after CMD configs since it used them
+ * to enable certain macros
+ */
 #include "mv-common.h"
 
-/* default environment variables */
+/* Include the common distro boot environment */
+#ifndef CONFIG_SPL_BUILD
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(USB, usb, 0) \
+	func(SATA, sata, 0) \
+	func(DHCP, dhcp, na)
+
+#define KERNEL_ADDR_R	__stringify(0x800000)
+#define FDT_ADDR_R	__stringify(0x2c00000)
+#define RAMDISK_ADDR_R	__stringify(0x01100000)
+#define SCRIPT_ADDR_R	__stringify(0x200000)
+
+#define LOAD_ADDRESS_ENV_SETTINGS \
+	"kernel_addr_r=" KERNEL_ADDR_R "\0" \
+	"fdt_addr_r=" FDT_ADDR_R "\0" \
+	"ramdisk_addr_r=" RAMDISK_ADDR_R "\0" \
+	"scriptaddr=" SCRIPT_ADDR_R "\0"
+
+#include <config_distro_bootcmd.h>
 
 #define CONFIG_EXTRA_ENV_SETTINGS \
 	"console=console=ttyS0,115200\0" \
 	"kernel=/boot/zImage\0" \
 	"fdt=/boot/nsa310s.dtb\0" \
-	"bootargs_root=ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs rw\0"
+	"bootargs_root=ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs rw\0" \
+	LOAD_ADDRESS_ENV_SETTINGS \
+	BOOTENV
+
+#endif /* CONFIG_SPL_BUILD */
 
 /* Ethernet driver configuration */
 #define CONFIG_MVGBE_PORTS	{1, 0}	/* enable port 0 only */