Update "ipa_reg.h" so that register definitions support IPA hardware
version 4.5, in addition to versions 3.5.1 through v4.2. Most of
the register definitions are the same, but in some cases fields are
added, changed, or eliminated.
Updates for a few IPA v4.5 registers are more complex, and adding
those definition will be deferred to separate patches. This patch
only updates the register offset and field definitions, and adds
informational comments.
The only code change avoids accessing the backward compatibility
register for IPA version 4.5 in ipa_hardware_config(). Other IPA
v4.5-specific code changes will come later.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch includes three source files that represent some basic "main
program" code for the IPA driver. They are:
- "ipa.h" defines the top-level IPA structure which represents an IPA
device throughout the code.
- "ipa_main.c" contains the platform driver probe function, along with
some general code used during initialization.
- "ipa_reg.h" defines the offsets of the 32-bit registers used for the
IPA device, along with masks that define the position and width of
fields within these registers.
- "version.h" defines some symbolic IPA version numbers.
Each file includes some documentation that provides a little more
overview of how the code is organized and used.
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
