[PATCH] arm: kirkwood: pogo_v4: Add Distro boot capability

[Tony Dinh <mibodhi@gmail.com>]

- Add distro boot to board include file and deconfig file
- Miscellaneous changes:
	- Add CONFIG_SUPPORT_PASSING_ATAGS and friends to support legacy
	kernel method of booting (e.g. OpenWrt) with appended DTB.
	- Add CONFIG_LTO and CONFIG_UBIFS_SILENCE_MSG, and disable some
	unused configs	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>
---

 configs/pogo_v4_defconfig | 25 ++++++++----------
 include/configs/pogo_v4.h | 54 +++++++++++++++++++++++++++++++++------
 2 files changed, 57 insertions(+), 22 deletions(-)

diff --git a/configs/pogo_v4_defconfig b/configs/pogo_v4_defconfig
index c62c88f1b5..748842100e 100644
--- a/configs/pogo_v4_defconfig
+++ b/configs/pogo_v4_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/cloudengines/pogo_v4/kwbimage.cfg"
 CONFIG_SYS_TEXT_BASE=0x600000
 CONFIG_SYS_MALLOC_F_LEN=0x400
@@ -13,23 +16,24 @@ CONFIG_ENV_OFFSET=0xC0000
 CONFIG_DEFAULT_DEVICE_TREE="kirkwood-pogoplug-series-4"
 CONFIG_IDENT_STRING="\nPogoplug V4"
 CONFIG_SYS_LOAD_ADDR=0x800000
+CONFIG_LTO=y
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xc8012000
 CONFIG_BOOTSTAGE=y
 CONFIG_SHOW_BOOT_PROGRESS=y
 CONFIG_BOOTDELAY=10
-CONFIG_USE_BOOTCOMMAND=y
-CONFIG_BOOTCOMMAND="setenv bootargs ${bootargs_console}; run bootcmd_usb; bootm 0x00800000 0x01100000 0x2c00000"
 CONFIG_USE_PREBOOT=y
 CONFIG_BOARD_LATE_INIT=y
-CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Pogo_V4> "
 CONFIG_SYS_MAXARGS=32
 CONFIG_SYS_PBSIZE=1050
-CONFIG_CMD_BOOTZ=y
 # CONFIG_BOOTM_PLAN9 is not set
 # CONFIG_BOOTM_RTEMS is not set
 # CONFIG_BOOTM_VXWORKS is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_IMI is not set
+# CONFIG_CMD_XIMG is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MMC=y
 CONFIG_CMD_MTD=y
@@ -37,22 +41,14 @@ CONFIG_CMD_NAND=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_SATA=y
 CONFIG_CMD_USB=y
-CONFIG_CMD_DHCP=y
-CONFIG_CMD_MII=y
-CONFIG_CMD_PING=y
 CONFIG_CMD_SNTP=y
 CONFIG_CMD_DNS=y
-CONFIG_CMD_EXT2=y
-CONFIG_CMD_EXT4=y
-CONFIG_CMD_FAT=y
-CONFIG_CMD_FS_GENERIC=y
+# CONFIG_CMD_BLOCK_CACHE is not set
 CONFIG_CMD_JFFS2=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nand0=orion_nand"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=orion_nand:2M(u-boot),3M(uImage),3M(uImage2),8M(failsafe),112M(root)"
 CONFIG_CMD_UBI=y
-CONFIG_ISO_PARTITION=y
-CONFIG_EFI_PARTITION=y
 CONFIG_PARTITION_TYPE_GUID=y
 CONFIG_OF_CONTROL=y
 CONFIG_ENV_OVERWRITE=y
@@ -62,6 +58,7 @@ CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_NETCONSOLE=y
 CONFIG_SYS_FAULT_ECHO_LINK_DOWN=y
 CONFIG_DM=y
+# CONFIG_DM_WARN is not set
 CONFIG_SATA_MV=y
 CONFIG_SYS_SATA_MAX_DEVICE=1
 CONFIG_LBA48=y
@@ -84,6 +81,6 @@ CONFIG_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_PCI=y
 CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_STORAGE=y
 CONFIG_JFFS2_LZO=y
 CONFIG_JFFS2_NAND=y
+CONFIG_UBIFS_SILENCE_MSG=y
diff --git a/include/configs/pogo_v4.h b/include/configs/pogo_v4.h
index 7fff78b7b5..b5ce2dd13d 100644
--- a/include/configs/pogo_v4.h
+++ b/include/configs/pogo_v4.h
@@ -21,15 +21,53 @@
  */
 #include "mv-common.h"
 
-/*
- * Default environment variables
- */
+/* Include the common distro boot environment */
+#ifndef CONFIG_SPL_BUILD
+
+#ifdef CONFIG_MMC
+#define BOOT_TARGET_DEVICES_MMC(func) func(MMC, mmc, 0)
+#else
+#define BOOT_TARGET_DEVICES_MMC(func)
+#endif
+
+#ifdef CONFIG_SATA
+#define BOOT_TARGET_DEVICES_SATA(func) func(SATA, sata, 0)
+#else
+#define BOOT_TARGET_DEVICES_SATA(func)
+#endif
+
+#ifdef CONFIG_USB_STORAGE
+#define BOOT_TARGET_DEVICES_USB(func) func(USB, usb, 0)
+#else
+#define BOOT_TARGET_DEVICES_USB(func)
+#endif
+
+#define BOOT_TARGET_DEVICES(func) \
+	BOOT_TARGET_DEVICES_MMC(func) \
+	BOOT_TARGET_DEVICES_USB(func) \
+	BOOT_TARGET_DEVICES_SATA(func) \
+	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 \
-	"dtb_file=/boot/dts/" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
-	"bootargs_console=console=ttyS0,115200\0" \
-	"bootcmd_usb=usb start; load usb 0:1 0x00800000 /boot/uImage; " \
-	"load usb 0:1 0x01100000 /boot/uInitrd; " \
-	"load usb 0:1 0x2c00000 $dtb_file\0"
+	LOAD_ADDRESS_ENV_SETTINGS \
+	"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
+	"mtdparts=" CONFIG_MTDPARTS_DEFAULT "\0" \
+	"console=ttyS0,115200\0" \
+	BOOTENV
+#endif /* CONFIG_SPL_BUILD */
 
 /*
  * Ethernet Driver configuration
-- 
2.30.2