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| author | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2018-07-15 11:54:42 +0100 |
|---|---|---|
| committer | Antonio Nino Diaz <antonio.ninodiaz@arm.com> | 2018-07-16 15:56:42 +0100 |
| commit | 97fb05e1ec49325272bb4086a6abb018a0d5eba4 (patch) | |
| tree | 4e706392bfb4ff870ab55555cb62df9debc95c99 /docs | |
| parent | 5e2e024b3dde49239761a866f5c639eb524443f4 (diff) | |
| download | platform_external_arm-trusted-firmware-97fb05e1ec49325272bb4086a6abb018a0d5eba4.tar.gz platform_external_arm-trusted-firmware-97fb05e1ec49325272bb4086a6abb018a0d5eba4.tar.bz2 platform_external_arm-trusted-firmware-97fb05e1ec49325272bb4086a6abb018a0d5eba4.zip | |
rpi3: Switch addresses of kernel and DTB
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>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/plat/rpi3.rst | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/docs/plat/rpi3.rst b/docs/plat/rpi3.rst index b1002563f..8ad11c836 100644 --- a/docs/plat/rpi3.rst +++ b/docs/plat/rpi3.rst @@ -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 |