u-boot/board/freescale/imx8mm_evk
Claudius Heine b9bb1d06e2 imx: imx8m*: Remove do_reset from board files
Use the `do_reset` implementation of `arch/arm/lib/reset.c` in SPL
instead.  It is very close to what is done here, anyway, and plays
more nicely with the rest of U-Boot than adding a custom `do_reset`
implementation into board files.

`do_reset` from `arch/arm/lib/reset.c` calls `reset_cpu` with 0 as the
addr parameter while the boards are passing WDOG1_BASE_ADDR.  This is
ok because the `reset_cpu` implementation uses WDOG1_BASE_ADDR by
default if 0 is passed in.

Co-Authored-by: Harald Seiler <hws@denx.de>
Signed-off-by: Claudius Heine <ch@denx.de>
Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
2020-05-01 13:46:22 +02:00
..
imx8mm_evk.c imx8mm_evk: adjust dram size in case bl32 is used 2020-04-17 18:59:07 +02:00
Kconfig imx: Add i.MX8MM EVK board support. 2019-10-08 16:36:36 +02:00
lpddr4_timing.c imx: Add i.MX8MM EVK board support. 2019-10-08 16:36:36 +02:00
MAINTAINERS imx: Add i.MX8MM EVK board support. 2019-10-08 16:36:36 +02:00
Makefile imx: Add i.MX8MM EVK board support. 2019-10-08 16:36:36 +02:00
README imx: imx8mm_evk: spelling in readme file 2020-02-09 14:50:52 +01:00
spl.c imx: imx8m*: Remove do_reset from board files 2020-05-01 13:46:22 +02:00

U-Boot for the NXP i.MX8MM EVK board

Quick Start
===========
- Build the ARM Trusted firmware binary
- Get ddr firmware
- Build U-Boot
- Boot

Get and Build the ARM Trusted firmware
======================================
Note: builddir is U-Boot build directory (source directory for in-tree builds)
Get ATF from: https://source.codeaurora.org/external/imx/imx-atf
branch: imx_4.19.35_1.0.0
$ make PLAT=imx8mm bl31
$ cp build/imx8mm/release/bl31.bin $(builddir)

Get the ddr firmware
=============================
$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.0.bin
$ chmod +x firmware-imx-8.0.bin
$ ./firmware-imx-8.0
$ cp firmware-imx-8.0/firmware/ddr/synopsys/lpddr4*.bin $(builddir)

Build U-Boot
============
$ export CROSS_COMPILE=aarch64-poky-linux-
$ make imx8mm_evk_defconfig
$ export ATF_LOAD_ADDR=0x920000
$ make flash.bin

Burn the flash.bin to MicroSD card offset 33KB
$sudo dd if=flash.bin of=/dev/sd[x] bs=1024 seek=33

Boot
====
Set Boot switch to SD boot