board: emulation: New board qemu-xtensa

Introduce the new board, define every bits.

Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
diff --git a/configs/qemu-xtensa-dc233c_defconfig b/configs/qemu-xtensa-dc233c_defconfig
new file mode 100644
index 0000000..e6f40b3
--- /dev/null
+++ b/configs/qemu-xtensa-dc233c_defconfig
@@ -0,0 +1,32 @@
+CONFIG_XTENSA=y
+CONFIG_SYS_CPU="dc233c"
+CONFIG_SYS_MALLOC_LEN=0x40000
+CONFIG_SYS_MALLOC_F_LEN=0x400
+CONFIG_ENV_SIZE=0x20000
+CONFIG_DEFAULT_DEVICE_TREE="virt"
+CONFIG_SYS_MONITOR_LEN=262144
+CONFIG_SYS_LOAD_ADDR=0x02000000
+CONFIG_TARGET_QEMU_XTENSA=y
+CONFIG_REMAKE_ELF=y
+CONFIG_SYS_MONITOR_BASE=0xF6000000
+CONFIG_DYNAMIC_SYS_CLK_FREQ=y
+CONFIG_SHOW_BOOT_PROGRESS=y
+CONFIG_BOOTDELAY=10
+CONFIG_AUTOBOOT_KEYED=y
+CONFIG_AUTOBOOT_PROMPT="Autobooting in %d seconds, press <SPACE> to stop\n"
+CONFIG_AUTOBOOT_STOP_STR=" "
+CONFIG_SYS_PBSIZE=1049
+CONFIG_SYS_MALLOC_BOOTPARAMS=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="U-Boot> "
+CONFIG_CMD_ASKENV=y
+CONFIG_CRC32_VERIFY=y
+CONFIG_CMD_MX_CYCLIC=y
+CONFIG_CMD_SAVES=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_DIAG=y
+CONFIG_USE_BOOTFILE=y
+CONFIG_BOOTFILE="uImage"
+CONFIG_VERSION_VARIABLE=y
+CONFIG_SYSRESET=y