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Paul Beesleyf3653a62019-05-22 11:22:44 +01001NXP i.MX 8M Series
2==================
Bai Ping06e325e2018-10-28 00:12:34 +08003
4The i.MX 8M family of applications processors based on Arm Corte-A53 and Cortex-M4
5cores provide high-performance computing, power efficiency, enhanced system
6reliability and embedded security needed to drive the growth of fast-growing
7edge node computing, streaming multimedia, and machine learning applications.
8
9Boot Sequence
Paul Beesleyf3653a62019-05-22 11:22:44 +010010-------------
Bai Ping06e325e2018-10-28 00:12:34 +080011
12Bootrom --> SPL --> BL31 --> BL33(u-boot) --> Linux kernel
13
14How to build
Paul Beesleyf3653a62019-05-22 11:22:44 +010015------------
Bai Ping06e325e2018-10-28 00:12:34 +080016
17Build Procedure
Paul Beesleyf3653a62019-05-22 11:22:44 +010018~~~~~~~~~~~~~~~
Bai Ping06e325e2018-10-28 00:12:34 +080019
20- Prepare AARCH64 toolchain.
21
22- Build spl and u-boot firstly, and get binary images: u-boot-spl.bin,
23 u-boot-nodtb.bin and dtb for the target board.
24
25- Build TF-A
26
27 Build bl31:
28
29 .. code:: shell
30
Mark Dykesef3a4562020-01-08 20:37:18 +000031 CROSS_COMPILE=aarch64-linux-gnu- make PLAT=<Target_SoC> bl31
Bai Ping06e325e2018-10-28 00:12:34 +080032
33 Target_SoC should be "imx8mq" for i.MX8MQ SoC.
Jacky Baia6177002019-03-06 17:15:06 +080034 Target_SoC should be "imx8mm" for i.MX8MM SoC.
Bai Ping06e325e2018-10-28 00:12:34 +080035
36Deploy TF-A Images
Paul Beesleyf3653a62019-05-22 11:22:44 +010037~~~~~~~~~~~~~~~~~~
Bai Ping06e325e2018-10-28 00:12:34 +080038
39TF-A binary(bl31.bin), u-boot-spl.bin u-boot-nodtb.bin and dtb are combined
40together to generate a binary file called flash.bin, the imx-mkimage tool is
41used to generate flash.bin, and flash.bin needs to be flashed into SD card
42with certain offset for BOOT ROM. the u-boot and imx-mkimage will be upstreamed
43soon, this doc will be updated once they are ready, and the link will be posted.