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doc: Moved Minnowboard info to wiki.

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Moved the Minnnowboard Max information from minnowboard.rst
to the Zephyr wiki.

Change-Id: I97c2090e3a76e2ab6a9ab1e5f338fb4c3ffb0715
Signed-off-by: Evan Couzens <evanx.couzens@intel.com>
This commit is contained in:
Evan Couzens 2016-06-22 14:27:48 -07:00 • committed by Inaky Perez-Gonzalez
commit 09aca84ab3
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doc/board/minnowboard.rst
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Minnowboard Max Minnowboard Max
############### ###############
Overview The board documentation for the Minnowboard Max has been moved to the Zephyr project wiki:
********
The minnowboard board configuration is used by Zephyr applications https://wiki.zephyrproject.org/view/Minnowboard_Max
that run on QEMU emulating the Atom N28xx platform. This configuration
provides support for an x86 Atom CPU and the following devices:
* HPET
* Advanced Programmed Interrupt Controller (APIC)
* NS16550 UART
.. note::
This board configuration makes no claims about its suitability for use
with an actual Atom N28xx hardware system, or any other hardware system.
Supported Features
******************
The minnowboard board configuration supports the following hardware features:
+--------------+------------+-----------------------+
| Interface | Controller | Driver/Component |
+==============+============+=======================+
| HPET | on-chip | system clock |
+--------------+------------+-----------------------+
| APIC | on-chip | interrupt controller |
+--------------+------------+-----------------------+
| NS16550 | on-chip | serial port |
| UART | | |
+--------------+------------+-----------------------+
The kernel currently does not support other hardware features on this platform.
HPET System Clock Support
=========================
The minnowboard board configuration uses a system clock frequency of 25 MHz.
.. note::
The LOAPIC timer may be used instead of the HPET. To do so,
set SYS_CLOCK_HW_CYCLES_PER_SEC to a custom value that is tied to the host system speed.
Serial Port
===========
The minnowboard board configuration uses a single serial communication channel
with a NS16550 serial driver that operates in polling mode.
For an interrupt-driven driver, enable the UART_INTERRUPT_DRIVEN kernel configuration option.
Known Problems or Limitations
*****************************
The following platform features are unsupported:
* Isolated Memory Regions
* Serial port in Direct Memory Access (DMA) mode
* Serial Peripheral Interface (SPI) flash
* General-Purpose Input/Output (GPIO)
* Inter-Integrated Circuit (I2C)
* Ethernet
* Supervisor Mode Execution Protection (SMEP)