Qsys allows to query to query the clock domain that is associated with a
clock input of a peripheral. This allows to automatically detect whether
the different clocks of the DMAC are asynchronous and CDC logic needs to be
inserted or not.
Auto-detection has the advantages that the configuration parameters don't
need to be set manually and the optional configuration will be choose
automatically. There is also less chance of error of leaving the settings
in a wrong configuration when e.g. the clock domains change.
In case the auto-detection should ever fail configuration options that
provide a manual overwrite are added as well.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Group configuration parameters by function, provide human readable labels
as well as specify the allowed ranges for each parameter.
This prevents accidental misconfiguration and also makes it easier to
inspect (or change) the configuration in the Qsys GUI.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Use the ad_ip_intf_s_axi helper function to create the axi4lite slave
interface for memory mapped peripherals. This slightly reduces the amount
of boilerplate code in the peripheral's *hw.tcl
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The axi_dmac can issue up to FIFO_SIZE read and write requests in parallel.
This is done in order to maximize throughput and compensate for for
latency.
Set the {read,write}IssuingCapability properties accordingly on the AXI
master interfaces. Otherwise qsys might decide to insert bridges that
artificially limit the number of requests, which in turn might affect
performance.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Make sure the req_gen_valid and req_gen_ready signals are declared before
they are used. Strictly speaking the current code is correct and synthesis
correctly, but declaring the signals make the intentions of the code more
explicit.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Move the CDC helper modules to a dedicated helper modules. This makes it
possible to reference them without having to use file paths that go outside
of the referencing project's directory.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
All the hdl (verilog and vhdl) source files were updated. If a file did not
have any license, it was added into it. Files, which were generated by
a tool (like Matlab) or were took over from other source (like opencores.org),
were unchanged.
New license looks as follows:
Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
Each core or library found in this collection may have its own licensing terms.
The user should keep this in in mind while exploring these cores.
Redistribution and use in source and binary forms,
with or without modification of this file, are permitted under the terms of either
(at the option of the user):
1. The GNU General Public License version 2 as published by the
Free Software Foundation, which can be found in the top level directory, or at:
https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html
OR
2. An ADI specific BSD license as noted in the top level directory, or on-line at:
https://github.com/analogdevicesinc/hdl/blob/dev/LICENSE
When a mapping has multiple address segments we need to consider all of
them to calculate the required address width.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The address width needs to be large enough to be able to address the
largest possible address. This means the in addition to the address segment
range the specified offset also needs to be considered to calculate the
address width.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
up_rdata is qualified by the up_rack signal. There is no need to reset it
since by the time the signal is read the reset value has already been
overwritten anyway.
Also gate the up_rdata registers if no read operation is in progress. In
this case any changes would be ignored anyway.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The AXI DMAC peripheral only uses 11-bit of the register map interface
address. Reducing the signal width to this value allows the scripts to
correctly infer the size of the register map.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Currently the AXI address width of the DMA is always 32-bit. But not all
address spaces are so large that they require 32-bit to address all memory.
Extract the size of the address space that the DMA is connected too and
configure reduce the address size to the minimum required to address the
full address space.
This slightly reduces utilization.
If no mapped address space can be found the default of 32 bits is used for
the address.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
The debug registers are useful during development but are rarely used in a
production design. Add a option that allows to disable them, this reduces
the resource utilization of the DMAC.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Depending on whether the core is configured for AXI4 or AXI3 mode the width
of the awlen/arlen signal is either 8 or 4 bit. At the moment this is only
considered in top-level module and all other modules use 8 bit internally.
This causes warnings about truncated signals in AXI3 mode, to resolve this
forward the width of the signal through the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
It seems that in the latest version a constant of "0" is no longer a valid
enablement dependency and "false" has be used instead.
Not setting the enablement dependency correctly results in the AXI port to
be assumed to be read-write rather than just read or write. This will
generate unnecessary logic for example in interconnects to which the DMA
controller is connected.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Add a human readable name and descriptor for the AXI DMAC core.This string
will appear in various places e.g. like the IP catalog. This is a purely
cosmetic change.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Add a register to the AXI DMAC register map which functions has a
identification register. The register contains the unique value of "DMAC"
(0x444d4143) and allows software to identify whether the peripheral mapped
at a certain address is an axi_dmac peripheral.
This is useful for detecting cases where the specified address contains an
error or is incorrect.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
This patch is a complementary fix of 8b8c37 patch. And fix
all the 'infer interface' issues.
The adi_ip_infer_interfaces process was renamed to
adi_ip_infer_streaming_interfaces. Now the process just do
what its name suggest.
Affected cores were axi_dmac, axi_spdif_rx, axi_spdif_tx, axi_i2s_adi
and axi_usb_fx3. All these cores scripts were updated.
Replace "PRIMITIVE_SUBGROUP == flop" with "IS_SEQUENTIAL" as the former is
series7 specific while the later works on all platforms. This fixes the
axi_dmac timing constraints for ultrascale based platforms.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
When all clocks are synchronous there are no synchronizers and the
constraint for the CDC registers can't find any cells which generates a
warning. To avoid this don't add CDC constraints when all the clocks are
synchronous.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
For the AXI stream interface we want to generate TLAST only at the end of
the transfer, rather than at the end of each burst.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Conflicts:
library/axi_ad9361/axi_ad9361_ip.tcl
library/axi_dmac/Makefile
library/axi_dmac/axi_dmac_constr.ttcl
library/axi_dmac/axi_dmac_ip.tcl
library/common/ad_tdd_control.v
projects/daq2/common/daq2_bd.tcl
projects/fmcjesdadc1/common/fmcjesdadc1_bd.tcl
projects/fmcomms2/zc706pr/system_project.tcl
projects/fmcomms2/zc706pr/system_top.v
projects/usdrx1/common/usdrx1_bd.tcl
This merge was made, to recover any forgotten fixes from master,
before creating the new release branch. All conflicts were reviewed
and resolved.
Drive all output pins of the disabled interfaces with a constant value.
This avoids warnings from the tools about not driven output ports.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Mark all unused output ports explicitly as explicitly. This makes it clear
that they are left unconnected on purpose and avoids warnings from the
tools about unconnected ports.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Group the axi_dmac parameters by function and provide a human readable name
for the IPI GUI. This makes it easier to understand what parameter does
what when using the IPI GUI to configure the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Add validation values for the different configuration parameters. This
enables the tools to check whether the configured value is valid and avoids
accidental misconfiguration.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Lars-Peter Clausen
Istvan Csomortani
Rejeesh Kutty
Adrian Costina
AndreiGrozav
Shrutika Redkar