sysmo-bts
/
barebox
9
0
Fork 0
Code Releases Activity

Documentation: Add some TI AM335x specific documentation 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2014-09-30 15:07:26 +02:00
parent 36a744ed79
commit 3d8cf91b89
3 changed files with 46 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
Documentation/boards/am335x.rst Normal file
View File

@ -0,0 +1,42 @@
Texas Instruments AM335x
========================
The Texas Instruments AM335x SoCs have a two-stage boot process. The first stage
loader, also known as MLO is loaded by the ROM code. The MLO loads the second stage
loader from the same medium.
Building barebox
----------------
The TI AM335x boards in barebox are covered by the ``am335x_mlo_defconfig``
for the MLO and ``am335x_defconfig`` for the regular barebox image. The
resulting images will be placed under ``images/``:
::
barebox-am33xx-afi-gf.img
barebox-am33xx-afi-gf-mlo.img
barebox-am33xx-beaglebone.img
barebox-am33xx-beaglebone-mlo.img
barebox-am33xx-phytec-phycore.img
barebox-am33xx-phytec-phycore-mlo-1x128m16.img
barebox-am33xx-phytec-phycore-mlo-1x256m16.img
barebox-am33xx-phytec-phycore-mlo-1x512m16.img
Some boards come in different variants, make sure to pick the correct one.
Starting and updating barebox
-----------------------------
SPI NOR and NAND
^^^^^^^^^^^^^^^^
The regular board images can be started from another bootloader, see
:ref:`second_stage`. The board should provide update handlers
to update (or initially install) barebox on SPI NOR or NAND, see :ref:`update`.
SD/MMC
^^^^^^
To start barebox from SD/MMC prepare a card with a FAT filesystem. Copy the MLO
file for your board to the card and name it ``MLO``. Copy the regular image
for your board to the card and name it ``barebox.bin``.

4
Documentation/boards/omap.rst
View File

@ -1,5 +1,5 @@
Texas Instruments OMAP/AM335x
=============================
Texas Instruments OMAP
======================
Texas Instruments OMAP SoCs have a two-stage boot process. The first stage is
known as Xload which only loads the second stage bootloader. barebox can act as

2
Documentation/user/barebox.rst
View File

@ -171,6 +171,8 @@ the compilation process will finish with a list of images built under ``images/`
barebox-guf-santaro.img
barebox-gk802.img
.. _second_stage:
Starting barebox
-----------------