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|
OPAL_LPC_READ
=============
::
This function related to Low Pin Count (LPC) bus. This function reads the
data from IDSEL register for ``chip_id``, which has LPC information.
From ``addr`` for ``addr_type`` with read size ``sz`` bytes in to a
variable named ``data``.
Parameters
----------
``chip_id``
The ``chip_id`` parameter contains value of the chip number identified at
boot time.
``addr_type``
The ``addr_type`` is one of the LPC supported address types.
Supported address types are -
LPC memory,
LPC IO and
LPC firmware.
``addr``
The ``addr`` from which the data has to be read.
``data``
The ``data`` will be used to store the read data.
``sz``
How many ``sz`` bytes to be read in to ``data``.
Return Codes
------------
``OPAL_PARAMETER``
Indicates either ``chip_id`` not found or ``chip_id`` doesn’t contain
LPC information.
``OPAL_SUCCESS``
Indicates Success!
OPAL_LPC_WRITE
==============
::
This function related to Low Pin Count (LPC) bus. This function writes the
``data`` in to ECCB register for ``chip_id``, which has LPC information.
From ``addr`` for ``addr_type`` with write size ``sz`` bytes.
Parameters
----------
``chip_id``
The ``chip_id`` parameter contains value of the chip number identified at
boot time.
``addr_type``
The ``addr_type`` is one of the address types LPC supported.
Supported address types are -
LPC memory,
LPC IO and
LPC firmware.
``addr``
The ``addr`` to where the ``data`` need to be written.
``data``
The ``data`` for writing.
``sz``
How many ``sz`` bytes to write.
Return Codes
------------
``OPAL_PARAMETER``
Indicates either ``chip_id`` not found or ``chip_id`` doesn’t contain LPC
information.
``OPAL_SUCCESS``
Indicates Success!
|
