mirror of
https://git.rtems.org/rtems-docs/
synced 2025-05-17 00:57:05 +08:00
88 lines
2.4 KiB
ReStructuredText
88 lines
2.4 KiB
ReStructuredText
.. comment SPDX-License-Identifier: CC-BY-SA-4.0
|
|
.. comment Copyright (c) 2018 embedded brains GmbH
|
|
|
|
powerpc (PowerPC)
|
|
*****************
|
|
|
|
QorIQ
|
|
=====
|
|
|
|
The BSP for the `QorIQ <https://en.wikipedia.org/wiki/QorIQ>`_ chip family
|
|
offers three variants. The `qoriq_e500` variant supports the P-series chips
|
|
such as P1020, P2010 and P2020. The `qoriq_e6500_32` (32-bit ISA) and
|
|
`qoriq_e6500_64` (64-bit ISA) variants support the T-series chips such as T2080
|
|
and T4240. The basic hardware initialization is not performed by the BSP. A
|
|
boot loader with device tree support must be used to start the BSP, e.g.
|
|
U-Boot.
|
|
|
|
The BSP is known to run on these boards:
|
|
|
|
* NXP P1020RDB
|
|
|
|
* MicroSys miriac MPX2020 (System on Module)
|
|
|
|
* Artesyn MVME2500 (VME64x SBC)
|
|
|
|
* NXP T2080RDB
|
|
|
|
* NXP T4240RDB
|
|
|
|
* MEN G52A (CompactPCI Serial)
|
|
|
|
The `qoriq_core_0` and `qoriq_core_1` variants should be used with care. They
|
|
are inteded for a `RTEMS_MULTIPROCESSING` configuration on the P1020.
|
|
|
|
Boot via U-Boot
|
|
---------------
|
|
|
|
The application executable file (ELF file) must be converted to an U-Boot
|
|
image. Use the following commands:
|
|
|
|
::
|
|
|
|
powerpc-rtems5-objcopy -O binary app.exe app.bin
|
|
gzip -9 -f -c app.bin > app.bin.gz
|
|
mkimage -A ppc -O linux -T kernel -a 0x4000 -e 0x4000 -n RTEMS -d app.bin.gz app.img
|
|
|
|
Use the following U-Boot commands to boot an application via TFTP download:
|
|
|
|
::
|
|
|
|
tftpboot ${loadaddr} app.img && run loadfdt && bootm ${loadaddr} - ${fdt_addr} ; reset
|
|
|
|
Clock Driver
|
|
------------
|
|
|
|
The clock driver uses two MPIC global timer (``QORIQ_CLOCK_TIMER`` and
|
|
``QORIQ_CLOCK_TIMECOUNTER``). In case ``QORIQ_IS_HYPERVISOR_GUEST`` is
|
|
defined, then the PowerPC decrementer is used.
|
|
|
|
Console Driver
|
|
--------------
|
|
|
|
The console driver supports the on-chip NS16550 compatible UARTs. In case
|
|
``QORIQ_IS_HYPERVISOR_GUEST`` is defined, then the EPAPR byte channel is used
|
|
for the console device.
|
|
|
|
Network Interface Driver
|
|
------------------------
|
|
|
|
The network interface driver is provided by the `libbsd`. The DPAA is
|
|
supported including 10Gbit/s Ethernet.
|
|
|
|
Topaz Hypervisor Guest
|
|
----------------------
|
|
|
|
For a Topaz hypervisor guest configuration use:
|
|
|
|
::
|
|
|
|
../configure --enable-rtemsbsp=qoriq_e6500_32 \
|
|
QORIQ_IS_HYPERVISOR_GUEST=1 \
|
|
QORIQ_UART_0_ENABLE=0 \
|
|
QORIQ_UART_1_ENABLE=0 \
|
|
QORIQ_TLB1_ENTRY_COUNT=16
|
|
|
|
You may have to adjust the linker command file according to your partition
|
|
configuration.
|