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Diffstat (limited to 'arch/powerpc/boot/dts/fsl/qoriq-dpaa-res1.dtsi')
| -rw-r--r-- | arch/powerpc/boot/dts/fsl/qoriq-dpaa-res1.dtsi | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-dpaa-res1.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-dpaa-res1.dtsi new file mode 100644 index 0000000..ff25692 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/qoriq-dpaa-res1.dtsi @@ -0,0 +1,84 @@ +/* + * QorIQ DPAA resources device tree stub [ FQIDs, BPIDs ] + * + * Copyright 2011-2012 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* These stubs are required to alloc qbman drivers to determine what ranges of + * resources are available for dynamic allocation, primarily because there are + * some legacy "a priori" assumptions in certain subsystems (eg. networking) + * that certain resources are reserved for their use. When those drivers (and in + * some cases, their corresponding device-tree nodes) are updated to dynamically + * allocate their resources, then *all* resources can be managed by the + * allocators and there may be no further need to define these stubs. + * + * A couple of qualifiers to the above statement though: + * + * - Some resource ranges are hardware-specific, rather than being defined by + * software memory allocation choices. Eg. the number of available BPIDs is + * baked into silicon and so will probably always need to be expressed in the + * device-tree, though in that case it will express all BPIDs, not just those + * available for dynamic allocation. + * + * - Even for memory-backed resources that are software determined (FQIDs), this + * information may only be configured and available on the control-plane + * partition that manages the device, so in AMP or hypervised scenarios there + * may still be need to a way to provide allocation ranges. Ie. for O/S + * instances that don't know how many resources are available to hardware, and + * possibly even for O/S instances that do know how many are available but + * that should not "own" all of them. + */ + +&bportals { + bman-bpids@0 { + compatible = "fsl,bpid-range"; + fsl,bpid-range = <32 32>; + }; +}; + +&qportals { + qman-fqids@0 { + compatible = "fsl,fqid-range"; + fsl,fqid-range = <256 256>; + }; + qman-fqids@1 { + compatible = "fsl,fqid-range"; + fsl,fqid-range = <32768 32768>; + }; + qman-pools@0 { + compatible = "fsl,pool-channel-range"; + fsl,pool-channel-range = <0x21 0xf>; + }; + qman-cgrids@0 { + compatible = "fsl,cgrid-range"; + fsl,cgrid-range = <0 256>; + }; +}; |