board: Add support for Conclusive KSTR-SAMA5D27

Introduce support for Conclusive KSTR-SAMA5D27 Single Board Computer.

Co-developed-by: Jakub Klama <jakub@conclusive.pl>
Signed-off-by: Jakub Klama <jakub@conclusive.pl>
Co-developed-by: Marcin Jabrzyk <marcin@conclusive.pl>
Signed-off-by: Marcin Jabrzyk <marcin@conclusive.pl>
Signed-off-by: Artur Rojek <artur@conclusive.pl>
diff --git a/configs/kstr_sama5d27_defconfig b/configs/kstr_sama5d27_defconfig
new file mode 100644
index 0000000..cc1419b
--- /dev/null
+++ b/configs/kstr_sama5d27_defconfig
@@ -0,0 +1,73 @@
+CONFIG_ARM=y
+CONFIG_ARCH_AT91=y
+CONFIG_TEXT_BASE=0x26f00000
+CONFIG_TARGET_KSTR_SAMA5D27=y
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x20003ee0
+CONFIG_DM_GPIO=y
+CONFIG_DEFAULT_DEVICE_TREE="at91-kstr-sama5d27"
+CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_DM_RESET=y
+CONFIG_SYS_MONITOR_LEN=524288
+CONFIG_SYS_LOAD_ADDR=0x24000000
+CONFIG_FIT=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_SD_BOOT=y
+CONFIG_BOOTDELAY=3
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyS0,115200 earlyprintk root=/dev/mmcblk0p2 rw rootwait"
+# CONFIG_USE_BOOTCOMMAND is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_DISPLAY_BOARDINFO_LATE=y
+CONFIG_MISC_INIT_R=y
+CONFIG_CMD_TLV_EEPROM=y
+CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+# CONFIG_CMD_LOADS is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+# CONFIG_ISO_PARTITION is not set
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_IS_IN_FAT=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_CLK=y
+CONFIG_CLK_AT91=y
+CONFIG_AT91_UTMI=y
+CONFIG_AT91_H32MX=y
+CONFIG_AT91_GENERIC_CLK=y
+CONFIG_ATMEL_PIO4=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_AT91=y
+CONFIG_I2C_EEPROM=y
+CONFIG_MICROCHIP_FLEXCOM=y
+CONFIG_MMC_IO_VOLTAGE=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_SDMA=y
+CONFIG_MMC_SDHCI_ATMEL=y
+CONFIG_PHY_MICREL=y
+CONFIG_MACB=y
+CONFIG_PINCTRL=y
+CONFIG_PINCTRL_AT91PIO4=y
+CONFIG_RESET_AT91=y
+CONFIG_DM_SERIAL=y
+CONFIG_ATMEL_USART=y
+CONFIG_SYSRESET=y
+CONFIG_SYSRESET_AT91=y
+CONFIG_TEE=y
+CONFIG_OPTEE=y
+CONFIG_TIMER=y
+CONFIG_ATMEL_PIT_TIMER=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_VENDOR_NUM=0x16c0
+CONFIG_USB_GADGET_PRODUCT_NUM=0x03e9
+CONFIG_USB_GADGET_ATMEL_USBA=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+# CONFIG_EFI_LOADER is not set