1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
.. SPDX-License-Identifier: GPL-2.0+
.. sectionauthor:: Garrett Giordano <ggiordano@phytec.com>
phyCORE-AM62Ax
==============
The `phyCORE-AM62Ax <https://www.phytec.com/product/phycore-am62a>`_ is a
SoM (System on Module) featuring TI's AM62Ax SoC. It can be used in combination
with different carrier boards. This module can come with different sizes and
models for DDR, eMMC, SPI NOR Flash and various SoCs from the AM62Ax family.
A development Kit, called `phyBOARD-Lyra <https://www.phytec.com/product/phyboard-am62x>`_
is used as a carrier board reference design around the AM62Ax SoM.
Quickstart
----------
* Download sources and TI firmware blobs
* Build Trusted Firmware-A
* Build OP-TEE
* Build U-Boot for the R5
* Build U-Boot for the A53
* Create bootable uSD Card
* Boot
Sources
-------
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_boot_sources
:end-before: .. k3_rst_include_end_boot_sources
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_boot_firmwares
:end-before: .. k3_rst_include_end_tifsstub
Build procedure
---------------
Setup the environment variables:
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_common_env_vars_desc
:end-before: .. k3_rst_include_end_common_env_vars_desc
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_board_env_vars_desc
:end-before: .. k3_rst_include_end_board_env_vars_desc
Set the variables corresponding to this platform:
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_common_env_vars_defn
:end-before: .. k3_rst_include_end_common_env_vars_defn
.. code-block:: bash
$ export UBOOT_CFG_CORTEXR=phycore_am62ax_r5_defconfig
$ export UBOOT_CFG_CORTEXA=phycore_am62ax_a53_defconfig
$ export TFA_BOARD=lite
$ # we dont use any extra TFA parameters
$ unset TFA_EXTRA_ARGS
$ export OPTEE_PLATFORM=k3-am62ax
$ # we dont use any extra OPTEE parameters
$ unset OPTEE_EXTRA_ARGS
1. Trusted Firmware-A:
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_build_steps_tfa
:end-before: .. k3_rst_include_end_build_steps_tfa
2. OP-TEE:
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_build_steps_optee
:end-before: .. k3_rst_include_end_build_steps_optee
3. U-Boot:
* 3.1 R5:
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_build_steps_spl_r5
:end-before: .. k3_rst_include_end_build_steps_spl_r5
* 3.2 A53:
.. include:: ../ti/k3.rst
:start-after: .. k3_rst_include_start_build_steps_uboot
:end-before: .. k3_rst_include_end_build_steps_uboot
uSD Card creation
-----------------
Use fdisk to partition the uSD card. The layout should look similar to:
.. code-block:: bash
$ sudo fdisk -l /dev/mmcblk0
Disk /dev/mmcblk0: 15 GB, 15913189376 bytes, 31080448 sectors
242816 cylinders, 4 heads, 32 sectors/track
Units: sectors of 1 * 512 = 512 bytes
Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type
/dev/mmcblk0p1 * 128,0,1 1023,3,32 16384 278527 262144 128M c Win95 FAT32 (LBA)
/dev/mmcblk0p2 1023,3,32 1023,3,32 278528 1693883 1415356 691M 83 Linux
Once partitioned, the boot partition has to be formatted with a FAT filesystem.
Assuming the uSD card is `/dev/mmcblk0`:
.. code-block:: bash
$ mkfs.vfat /dev/mmcblk0p1
To boot from a micro SD card on a HSFS device simply copy the following
artifacts to the FAT partition:
* tiboot3.bin from R5 build
* tispl.bin from Cortex-A build
* u-boot.img from Cortex-A build
Boot
----
Put the uSD card in the slot on the board and apply power. Check the serial
console for output.
UART based boot
---------------
To boot the board via UART, set the switches to UART mode and connect to the
micro USB port labeled as "Debug UART". After power-on the build artifacts
needs to be uploaded one by one with a tool like sz.
Example bash script sequence for running on a Linux host PC feeding all boot
artifacts needed to the device. Assuming the host uses /dev/ttyUSB0 as
the main domain serial port:
.. prompt:: bash $
stty -F /dev/ttyUSB0 115200
sb --xmodem tiboot3.bin > /dev/ttyUSB0 < /dev/ttyUSB0
sb --ymodem tispl.bin > /dev/ttyUSB0 < /dev/ttyUSB0
sb --ymodem u-boot.img > /dev/ttyUSB0 < /dev/ttyUSB0
Boot Modes
----------
The phyCORE-AM62x development kit supports booting from many different
interfaces. By default, the development kit is set to boot from the micro-SD
card. To change the boot device, DIP switches S5 and S6 can be used.
Boot switches should be changed with power off.
.. list-table:: Boot Modes
:widths: 16 16 16
:header-rows: 1
* - Switch Label
- SW5: 12345678
- SW6: 12345678
* - uSD
- 11000010
- 01000000
* - eMMC
- 11010010
- 00000000
* - OSPI
- 11010000
- 10000000
* - UART
- 11011100
- 00000000
Further Information
-------------------
Please see :doc:`../ti/am62ax_sk` chapter for further AM62Ax SoC related documentation
and https://docs.phytec.com/projects/yocto-phycore-am62ax/en/latest/ for vendor documentation.
|
