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rpi3: Switch addresses of kernel and DTB

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In the memory map of the documentation the kernel only had 16MiB of
allocated space. This leaves very little room for growth, so the
addresses of the DTB and the kernel have been interchanged.

The documentation has been updated to reflect this change.

Change-Id: Ib6eab69f047fa88561fb755397ce3a0b356c8860
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
This commit is contained in:
Antonio Nino Diaz 2018-07-15 11:54:42 +01:00
parent 5e2e024b3d
commit 97fb05e1ec
1 changed files with 12 additions and 12 deletions
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24
docs/plat/rpi3.rst
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@ -107,13 +107,13 @@ secure platform!
| ... |
| |
0x01000000 +-----------------+
| Kernel |
| DTB | (Loaded by the VideoCore)
+-----------------+
| |
| ... |
| |
0x02000000 +-----------------+
| DTB |
| Kernel | (Loaded by the VideoCore)
+-----------------+
| |
| ... |
@ -132,10 +132,10 @@ secure platform!
| I/O |
0x40000000 +-----------------+
The area between **0x10000000** and **0x11000000** has to be protected so that
the kernel doesn't use it. That is done by adding ``memmap=16M$256M`` to the
command line passed to the kernel. See the `Setup SD card`_ instructions to see
how to do it.
The area between **0x10000000** and **0x11000000** has to be manually protected
so that the kernel doesn't use it. That is done by adding ``memmap=16M$256M`` to
the command line passed to the kernel. See the `Setup SD card`_ instructions to
see how to do it.
The last 16 MiB of DRAM can only be accessed by the VideoCore, that has
different mappings than the Arm cores in which the I/O addresses don't overlap
@ -304,8 +304,8 @@ For a 64-bit kernel:
.. code:: shell
CROSS_COMPILE=aarch64-linux-gnu- make PLAT=rpi3 \
PRELOADED_BL33_BASE=0x01000000 \
RPI3_PRELOADED_DTB_BASE=0x02000000 \
PRELOADED_BL33_BASE=0x02000000 \
RPI3_PRELOADED_DTB_BASE=0x01000000 \
RPI3_DIRECT_LINUX_BOOT=1
For a 32-bit kernel:
@ -313,8 +313,8 @@ For a 32-bit kernel:
.. code:: shell
CROSS_COMPILE=aarch64-linux-gnu- make PLAT=rpi3 \
PRELOADED_BL33_BASE=0x01000000 \
RPI3_PRELOADED_DTB_BASE=0x02000000 \
PRELOADED_BL33_BASE=0x02000000 \
RPI3_PRELOADED_DTB_BASE=0x01000000 \
RPI3_DIRECT_LINUX_BOOT=1 \
RPI3_BL33_IN_AARCH32=1
@ -398,8 +398,8 @@ untouched). They have been tested with the image available in 2018-03-13.
::
enable_uart=1
kernel_address=0x01000000
device_tree_address=0x02000000
kernel_address=0x02000000
device_tree_address=0x01000000
If you connect a serial cable to the Mini UART and your computer, and connect
to it (for example, with ``screen /dev/ttyUSB0 115200``) you should see some