imx8qxp_mek: switch to use container image

Because FIT could not be used for AHAB secure boot on i.MX8,
so switch to use container image that could let SPL verify
ATF and U-Boot with AHAB.

Note: The AHAB related code has not been added.

Signed-off-by: Peng Fan <peng.fan@nxp.com>

board/freescale/imx8qxp_mek/README

@@ -39,11 +39,9 @@ $ cp imx-sc-firmware-0.7/mx8qx-mek-scfw-tcm.bin	.
 
 Build U-Boot
 ============
-$ export ATF_LOAD_ADDR=0x80000000
-$ export BL33_LOAD_ADDR=0x80020000
 $ make imx8qxp_mek_defconfig
 $ make flash.bin
-$ dd if=u-boot.itb of=flash.bin bs=512 seek=1984
+$ dd if=u-boot.cnt of=flash.bin bs=512 seek=1984
 
 Flash the binary into the SD card
 =================================

board/freescale/imx8qxp_mek/uboot-container.cfg

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2019 NXP
+ */
+
+#define __ASSEMBLY__
+
+/* This file is to create a container image could be loaded by SPL */
+BOOT_FROM SD 0x400
+SOC_TYPE IMX8QX
+CONTAINER
+IMAGE A35 bl31.bin	0x80000000
+IMAGE A35 u-boot.bin	CONFIG_SYS_TEXT_BASE

configs/imx8qxp_mek_defconfig

@@ -7,15 +7,14 @@ CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_SYS_MALLOC_F_LEN=0x4000
+CONFIG_SPL_LOAD_IMX_CONTAINER=y
+CONFIG_IMX_CONTAINER_CFG="board/freescale/imx8qxp_mek/uboot-container.cfg"
 CONFIG_TARGET_IMX8QXP_MEK=y
 CONFIG_SPL_MMC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
 CONFIG_NR_DRAM_BANKS=3
 CONFIG_SPL=y
-CONFIG_FIT=y
-CONFIG_SPL_LOAD_FIT=y
-CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-imx/mkimage_fit_atf.sh"
 CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/imx8qxp_mek/imximage.cfg"
 CONFIG_BOOTDELAY=3
 CONFIG_LOG=y