[U-Boot] [PATCH] mx8mqevk: Update README with additional info

[Diego Dorta]

The main reason for this update is due the currently README has no enough
info to boot the board. Add a few more steps that make the board bootable.

Signed-off-by: Diego Dorta <diego.dorta at nxp.com>
---

This patch depends on Peng Fan's patch series: https://patchwork.ozlabs.org/cover/857942/

 board/freescale/mx8mq_evk/README | 92 +++++++++++++++++++++++++++-------------
 1 file changed, 63 insertions(+), 29 deletions(-)

diff --git a/board/freescale/mx8mq_evk/README b/board/freescale/mx8mq_evk/README
index 5a6e8b84d7..cd7e67eec5 100644
--- a/board/freescale/mx8mq_evk/README
+++ b/board/freescale/mx8mq_evk/README
@@ -1,47 +1,81 @@
 U-Boot for the NXP i.MX8MQ EVK board
 
 Quick Start
-====================
-- Build the ARM Trusted firmware binary
+===========
+
 - Build U-Boot
-- Get ddr fimware and tools
+- Build the ARM Trusted firmware binary
+- Get DDR firmware and mkimage tool
 - Generate flash.bin using imx-mkimage
+- Flash the binary into the SD card
 - Boot
 
-Get and Build the ARM Trusted firmware
-====================
-Get ATF from: https://source.codeaurora.org/external/imx/imx-atf
-$ make PLAT=imx8mq bl31
-
 Build U-Boot
-====================
-$ export ARCH=arm64
-$ export CROSS_COMPILE=aarch64-poky-linux-
+============
+
 $ make mx8mq_evk_defconfig
 $ make
 
-Get the ddr firmware and tools
-====================
-Note: Better to use NXP released yocto to get the firmware in case
-      there is new releases.
-https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-7.2.bin
-imx-mkimage: https://source.codeaurora.org/external/imx/imx-mkimage/
+Get and Build the ARM Trusted firmware
+======================================
+
+$ git clone https://source.codeaurora.org/external/imx/imx-atf
+$ cd imx-atf/
+$ git checkout origin/imx_4.9.51_imx8m_beta
+$ make PLAT=imx8mq bl31
+
+Get the DDR firmware and mkimage tool
+==============================
+
+$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-7.2.bin
+$ chmod +x firmware-imx-7.2.bin
+$ ./firmware-imx-7.2.bin
+
+Download the imx-mkimage tool:
+
+$ git clone https://source.codeaurora.org/external/imx/imx-mkimage/
+$ cd imx-mkimage/
+$ git checkout origin/imx_4.9.51_imx8m_beta
+
 
 Generate flash.bin using imx-mkimage
-====================
-Copy bl31.bin u-boot-nodtb.bin u-boot-spl.bin fsl-imx8mq-evk.dtb to
-     imx-mkimage/iMX8M
-Copy lpddr4_pmu_train_1d_dmem.bin lpddr4_pmu_train_1d_imem.bin
-     lpddr4_pmu_train_2d_dmem.bin lpddr4_pmu_train_2d_imem.bin to
-     imx-mkimage/iMX8M
-If you want to run with HDMI, copy signed_hdmi_imx8m.bin to imx-mkimage/iMX8M
+====================================
+
+Copy the following binaries to imx-mkimage/iMX8M folder:
+
+$ cp imx-atf/build/imx8mq/release/bl31.bin imx-mkimage/iMX8M/
+$ cp u-boot/u-boot-nodtb.bin imx-mkimage/iMX8M/
+$ cp u-boot/spl/u-boot-spl.bin imx-mkimage/iMX8M/
+$ cp u-boot/arch/arm/dts/fsl-imx8mq-evk.dtb imx-mkimage/iMX8M/
+
+Copy the following firmwares to imx-mkimage/iMX8 folder :
+
+$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_1d_dmem.bin imx-mkimage/iMX8M/
+$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_1d_imem.bin imx-mkimage/iMX8M/
+$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_2d_dmem.bin imx-mkimage/iMX8M/
+$ cp firmware-imx-7.2/firmware/ddr/synopsys/lpddr4_pmu_train_2d_imem.bin imx-mkimage/iMX8M/
+
+If you want to run with HDMI, copy signed_hdmi_imx8m.bin to imx-mkimage/iMX8M.
+
+Before generating the flash.bin, transfer the mkimage generated by U-Boot to iMX8M folder:
+
+$ cp u-boot/tools/mkimage imx-mkimage/iMX8M/
+$ mv imx-mkimage/iMX8M/mkimage imx-mkimage/iMX8M/mkimage_uboot
+
+$ cd imx-mkimage/
+$ make SOC=iMX8M flash_spl_uboot
+
+Or for using HDMI:
+
+$ make SOC=iMX8M flash_hdmi_spl_uboot
+
+Flash the binary into the SD card
+=================================
 
-make SOC=iMX8M flash_hdmi_spl_uboot or make SOC=iMX8M flash_spl_uboot to
-generate flash.bin.
+Burn the flash.bin binary to SD card offset 33KB:
 
-Burn the flash.bin to MicroSD card offset 33KB
-$sudo dd if=iMX8M/flash.bin of=/dev/sd[x] bs=1024 seek=33
+$ sudo dd if=iMX8M/flash.bin of=/dev/sd[x] bs=1024 seek=33
 
 Boot
-====================
+====
 Set Boot switch SW801: 1100 and Bmode: 10 to boot from Micro SD.
-- 
2.15.1