linux-kernel - Re: [PATCH v2 2/3] remoteproc/keystone: Add a remoteproc driver for Keystone 2 DSPs

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Date:   Sat, 10 Jun 2017 12:32:18 -0700
From:   Santosh Shilimkar <santosh.shilimkar@...cle.com>
To:     Suman Anna <s-anna@...com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Ohad Ben-Cohen <ohad@...ery.com>
Cc:     Santosh Shilimkar <ssantosh@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-remoteproc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, "Andrew F. Davis" <afd@...com>,
        Sam Nelson <sam.nelson@...com>
Subject: Re: [PATCH v2 2/3] remoteproc/keystone: Add a remoteproc driver for
 Keystone 2 DSPs

6/7/2017 5:24 PM, Suman Anna wrote:
> The Texas Instrument's Keystone 2 family of SoCs has 1 or more
> TMS320C66x DSP Core Subsystems (C66x CorePacs). Each subsystem has
> a C66x Fixed/Floating-Point DSP Core, with 32KB of L1P and L1D SRAMs,
> that can be configured and partitioned as either RAM and/or Cache,
> and 1 MB of L2 SRAM. The CorePac also includes an Internal DMA (IDMA),
> External Memory Controller (EMC), Extended Memory Controller (XMC)
> with a Memory Protection and Address Extension (MPAX) unit, a Bandwidth
> Management (BWM) unit, an Interrupt Controller (INTC) and a Powerdown
> Controller (PDC).
> 
> A new remoteproc module is added to perform the device management of
> these DSP devices. The driver expects the firmware names to be of the
> form "keystone-dsp<X>-fw", where X is the corresponding DSP number, and
> uses the standard remoteproc core ELF loader. The support is limited
> to images only using the DSP internal memories at the moment. This
> remoteproc driver is also designed to work with virtio, and uses the
> IPC Generation registers for performing the virtio signalling and
> getting notified of exceptions.
> 
> The driver currently supports the 66AK2H/66AK2K, 66AK2L and 66AK2E
> SoCs.
> 
> Signed-off-by: Suman Anna <s-anna@...com>
> Signed-off-by: Sam Nelson <sam.nelson@...com>
> Signed-off-by: Andrew F. Davis <afd@...com>
> ---

Acked-by: Santosh Shilimkar <ssantosh@...nel.org>