blob: 0495cd1ee9fb757e434beef23ba68c7d69f151a2 (
plain)
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
|
.. SPDX-License-Identifier: GPL-2.0+
Experimental U-Boot SPL Support
===============================
There's some experimental support for some Amlogic SoCs, in U-Boot SPL. It
replaces the proprietary bl2.bin blob used for DRAM init. Currently Meson GX
SoCs (GXBB, GXL) are supported.
A subset of Amlogic boards have SPL enabled. These boards have been tested and
are known to work to an extent.
Building Arm Trusted Firmware (TF-A)
------------------------------------
This U-Boot SPL port requires the BL31 stage of mainline Arm Trusted
Firmware-A firmware. It provides an open source implementation of secure
software for Armv8-A. Build it with:
.. code-block:: bash
$ git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git
$ cd trusted-firmware-a
$ make CROSS_COMPILE=aarch64-linux-gnu- PLAT=your_soc AML_STDPARAMS=1
Replace ``your_soc`` with the SoC target you wish to build for. For GXBB it's
``gxbb`` and for GXL it's ``gxl``.
Building a bl30_new.bin binary
------------------------------
``bl30_new.bin`` has both ``bl30.bin`` and ``bl301.bin`` binary blobs
bundled. The former is the proper system control processor firmware and the
latter is a "plug-in" for board-specific DVFS/suspend-resume parameters. For
more info you may wish to read this page: `Pre-Generated FIP File Repo`_.
To build using the FIP file repo, simply issue the following commands:
.. code-block:: bash
$ cd amlogic-boot-fip/your_board
$ make bl30_new.bin
.. _`Pre-Generated FIP File Repo`: pre-generated-fip.rst
U-Boot compilation
------------------
U-Boot SPL is not enabled by default, instead there are config fragments that
can be used to enable it, with per-board configuration:
- ``spl-libretech-cc-1gb.config``: 1 GB LePotato board
- ``spl-libretech-cc-2gb.config``: 2 GB LePotato board
- ``spl-odroid-c2.config``: ODROID-C2
- ``spl-videostrong-kii-pro.config``: Videostrong KII Pro
Pick one of them then:
.. code-block:: bash
$ export CROSS_COMPILE=aarch64-linux-gnu-
$ export BL31=path/to/tf-a/bl31.bin # Upstream TF-A BL31 binary
$ export SCP=path/to/bl30_new.bin # bl30_new.bin binary
$ make <yourboardname>_defconfig spl-<yourboardname>.config
$ make
Write to SD:
.. code-block:: bash
$ DEV=/dev/boot_device
$ dd if=u-boot-meson-with-spl.bin of=$DEV conv=fsync,notrunc bs=512 seek=1
|
