rockchip: rk3288-firefly: Change to use FIT

Change to use FIT and FIT_SIGNATURE when loading U-Boot proper in SPL to
allow checksum validation and fallback loading of FIT from a different
mmc device.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/configs/firefly-rk3288_defconfig b/configs/firefly-rk3288_defconfig
index 95fb20b..d8a671b 100644
--- a/configs/firefly-rk3288_defconfig
+++ b/configs/firefly-rk3288_defconfig
@@ -18,9 +18,15 @@
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART=y
 # CONFIG_ANDROID_BOOT_IMAGE is not set
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_SPL_FIT_SIGNATURE=y
+CONFIG_SPL_LOAD_FIT=y
+CONFIG_LEGACY_IMAGE_FORMAT=y
 CONFIG_DEFAULT_FDT_FILE="rockchip/rk3288-firefly.dtb"
 CONFIG_MISC_INIT_R=y
 CONFIG_SPL_PAD_TO=0x7f8000
+# CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
@@ -92,4 +98,5 @@
 CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_CMD_DHRYSTONE=y
+CONFIG_SPL_CRC32=y
 CONFIG_ERRNO_STR=y