imx: Support i.MX91 11x11 EVK board
Add i.MX91 11x11 EVK Board support.
- Four ddr scripts included w/o inline ecc feature.
- SDHC/NETWORK/I2C/UART supported
- PCA9451 supported, default nominal drive mode
- Documentation added.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/doc/board/nxp/imx91_11x11_evk.rst b/doc/board/nxp/imx91_11x11_evk.rst
new file mode 100644
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+++ b/doc/board/nxp/imx91_11x11_evk.rst
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+.. SPDX-License-Identifier: GPL-2.0+
+
+imx91_11x11_EVK
+=======================
+
+U-Boot for the NXP i.MX91 11x11 EVK
+
+Quick Start
+-----------
+
+- Get and Build the ARM Trusted firmware
+- Get the DDR 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=imx91 bl31
+ $ cp build/imx91/release/bl31.bin $(srctree)
+
+Get the DDR firmware
+--------------------
+
+.. code-block:: bash
+
+ $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.21.bin
+ $ chmod +x firmware-imx-8.21.bin
+ $ ./firmware-imx-8.21.bin
+ $ cp firmware-imx-8.21/firmware/ddr/synopsys/lpddr4*.bin $(srctree)
+
+Get ahab-container.img
+---------------------------------------
+
+.. code-block:: bash
+
+ $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-ele-imx-1.3.0-17945fc.bin
+ $ chmod +x firmware-ele-imx-1.3.0-17945fc.bin
+ $ ./firmware-ele-imx-1.3.0-17945fc.bin
+ $ cp firmware-ele-imx-1.3.0-17945fc/mx91a0-ahab-container.img $(srctree)
+
+Build U-Boot
+------------
+
+.. code-block:: bash
+
+ $ export CROSS_COMPILE=aarch64-poky-linux-
+ $ make imx91_11x11_evk_defconfig or imx91_11x11_evk_inline_ecc_defconfig
+ $ make
+
+- Inline ECC is to enable DDR ECC feature with imx91_11x11_evk_inline_ecc_defconfig
+
+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