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u-boot/board/freescale/imx8mm_evk
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Peng Fan 1a9971035d imx8m: evk: spl: probe clk in spl early stage 
We are going to add i2c pmic support before dram could be used.
So we need enable clk driver earlier, so use spl_early_init
and move clock controller probe eariler to board_init_f.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
2019-11-03 17:04:16 +01:00
..
imx8mm_evk.c imx: imx8mm_evk: add board_mmc_get_env_dev 2019-10-14 09:31:41 +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: Add i.MX8MM EVK board support. 2019-10-08 16:36:36 +02:00
spl.c imx8m: evk: spl: probe clk in spl early stage 2019-11-03 17:04:16 +01:00

README 

U-Boot for the NXP i.MX8MM EVK board

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

Get and Build the ARM Trusted firmware
======================================
Note: srctree is U-Boot source directory
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 $(srctree)

Get the ddr and hdmi 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-7.9/firmware/ddr/synopsys/lpddr4*.bin $(srctree)

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