CONFIG_SF_DEFAULT_SPEED=40000000
CONFIG_ENV_SIZE=0x2000
CONFIG_ENV_OFFSET=0x400000
-CONFIG_IMX_CONFIG=""
+CONFIG_IMX_CONFIG="arch/arm/mach-imx/imx8ulp/imximage.cfg"
CONFIG_DM_GPIO=y
CONFIG_DEFAULT_DEVICE_TREE="imx8ulp-evk"
CONFIG_SPL_TEXT_BASE=0x22020000
CONFIG_SPL_BOARD_INIT=y
CONFIG_SPL_BOOTROM_SUPPORT=y
CONFIG_SPL_LOAD_IMX_CONTAINER=y
+CONFIG_IMX_CONTAINER_CFG="arch/arm/mach-imx/imx8ulp/container.cfg"
# CONFIG_SPL_SHARES_INIT_SP_ADDR is not set
CONFIG_SPL_SYS_MALLOC=y
CONFIG_SPL_HAS_CUSTOM_MALLOC_START=y
--- /dev/null
+.. SPDX-License-Identifier: GPL-2.0+
+
+imx8ulp_evk
+=======================
+
+U-Boot for the NXP i.MX 8ULP EVK board
+
+Quick Start
+-----------
+
+- Get and Build the ARM Trusted firmware
+- Get the uPower firmware
+- Get the M33 firmware
+- Get ahab-container.img
+- Build U-Boot
+- Boot
+
+Get and Build the ARM Trusted firmware
+--------------------------------------
+
+Note: srctree is U-Boot source directory
+Get ATF from: https://github.com/nxp-imx/imx-atf/
+branch: lf_v2.10
+
+.. code-block:: bash
+
+ $ unset LDFLAGS
+ $ make PLAT=imx8ulp bl31
+ $ cp build/imx8ulp/release/bl31.bin $(srctree)
+
+Get the uPower firmware
+-----------------------
+
+.. code-block:: bash
+
+ $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-upower-1.3.1.bin
+ $ chmod +x firmware-upower-1.3.1.bin
+ $ ./firmware-upower-1.3.1.bin
+ $ cp firmware-upower-1.3.1/upower_a1.bin $(srctree)/upower.bin
+
+Get the M33 firmware
+--------------------
+
+.. code-block:: bash
+
+ $ wget http://www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx8ulp-m33-demo-2.14.1.bin
+ $ chmod +x imx8ulp-m33-demo-2.14.1.bin
+ $ ./imx8ulp-m33-demo-2.14.1.bin
+ $ cp imx8ulp-m33-demo-2.14.1/imx8ulp_m33_TCM_power_mode_switch.bin $(srctree)/m33_image.bin
+
+Get ahab-container.img
+---------------------------------------
+
+.. code-block:: bash
+
+ $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-ele-imx-0.1.2-4ed450a.bin
+ $ chmod +x firmware-ele-imx-0.1.2-4ed450a.bin
+ $ ./firmware-ele-imx-0.1.2-4ed450a.bin
+ $ cp firmware-ele-imx-0.1.2-4ed450a/mx8ulpa2-ahab-container.img $(srctree)
+
+Build U-Boot
+------------
+
+.. code-block:: bash
+
+ $ export CROSS_COMPILE=aarch64-poky-linux-
+ $ make imx8ulp_evk_defconfig
+ $ make
+
+Burn the flash.bin to MicroSD card offset 32KB:
+
+.. code-block:: bash
+
+ $ dd if=flash.bin of=/dev/sd[x] bs=1024 seek=32 conv=notrunc
+
+Boot
+----
+
+Set Boot switch to SD boot