arm: xea: config: Provide special defconfig for a single binary u-boot

The new configs/imx28_xea_sb_defconfig is introduced to facilitate
building the single binary u-boot.sb fox XEA board.

The biggest distinction from "normal" XEA imx28_xea_sb_defconfig is
support for USB mass storage devices (pen drives).

To achieve that, the CONFIG_DM_USB is enabled and supported.

Signed-off-by: Lukasz Majewski <lukma@denx.de>

board/liebherr/xea/MAINTAINERS

@@ -4,3 +4,4 @@ S:	Maintained
 F:	board/liebherr/xea/
 F:	include/configs/xea.h
 F:	configs/imx28_xea_defconfig
+F:	configs/imx28_xea_sb_defconfig

configs/imx28_xea_sb_defconfig

@@ -0,0 +1,112 @@
+CONFIG_ARM=y
+CONFIG_SPL_SYS_THUMB_BUILD=y
+CONFIG_ARCH_MX28=y
+CONFIG_SYS_TEXT_BASE=0x40002000
+CONFIG_SYS_MALLOC_F_LEN=0x800
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_DM_GPIO=y
+CONFIG_SPL_DM_SPI=y
+CONFIG_DEFAULT_DEVICE_TREE="imx28-xea"
+CONFIG_SPL_TEXT_BASE=0x1000
+CONFIG_TARGET_XEA=y
+CONFIG_SPL_SYS_MALLOC_F_LEN=0x1000
+CONFIG_SPL=y
+CONFIG_ENV_OFFSET_REDUND=0x90000
+CONFIG_SPL_PAYLOAD="u-boot.img"
+CONFIG_SYS_LOAD_ADDR=0x42000000
+CONFIG_FIT=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyAMA0,115200n8"
+CONFIG_USE_PREBOOT=y
+CONFIG_PREBOOT="run prebootcmd"
+CONFIG_BOARD_EARLY_INIT_F=y
+# CONFIG_SPL_FRAMEWORK is not set
+CONFIG_SPL_BOARD_INIT=y
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
+CONFIG_SPL_SYS_MALLOC_SIMPLE=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_SECTOR=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0
+CONFIG_SUPPORT_EMMC_BOOT_OVERRIDE_PART_CONFIG=y
+CONFIG_SPL_DMA=y
+CONFIG_SPL_DM_SPI_FLASH=y
+CONFIG_SPL_OS_BOOT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_CMD_SPL=y
+CONFIG_CMD_ASKENV=y
+CONFIG_CMD_GREPENV=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_MTD=y
+# CONFIG_CMD_PINMUX is not set
+CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_REGULATOR=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_OF_CONTROL=y
+CONFIG_SPL_OF_CONTROL=y
+CONFIG_OF_SPL_REMOVE_PROPS="pinctrl-0 pinctrl-names clock-names interrupt-parent interrupts"
+CONFIG_SPL_OF_PLATDATA=y
+# CONFIG_SPL_OF_PLATDATA_PARENT is not set
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_USE_ENV_SPI_BUS=y
+CONFIG_ENV_SPI_BUS=3
+CONFIG_USE_ENV_SPI_CS=y
+CONFIG_ENV_SPI_CS=0
+CONFIG_USE_ENV_SPI_MAX_HZ=y
+CONFIG_ENV_SPI_MAX_HZ=40000000
+CONFIG_USE_ENV_SPI_MODE=y
+CONFIG_ENV_SPI_MODE=0x0
+CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_DM=y
+CONFIG_SPL_DM=y
+CONFIG_DEVRES=y
+# CONFIG_SPL_BLK is not set
+CONFIG_MXS_GPIO=y
+CONFIG_SUPPORT_EMMC_BOOT=y
+CONFIG_MMC_MXS=y
+CONFIG_MTD=y
+CONFIG_DM_MTD=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SF_DEFAULT_BUS=3
+CONFIG_SF_DEFAULT_MODE=0x0
+CONFIG_SF_DEFAULT_SPEED=40000000
+CONFIG_SPI_FLASH_SFDP_SUPPORT=y
+CONFIG_SPI_FLASH_ISSI=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_STMICRO=y
+# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_PHYLIB=y
+CONFIG_PHY_ADDR_ENABLE=y
+CONFIG_PHY_ADDR=1
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
+CONFIG_FEC_MXC=y
+CONFIG_MII=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_MXS=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
+CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_CONS_INDEX=0
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MXS_SPI=y
+CONFIG_USB=y
+# CONFIG_SPL_DM_USB is not set
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_FS_FAT=y
+# CONFIG_SPL_OF_LIBFDT is not set