From: Stefano Stabellini <stefano.stabellini@xilinx.com>
To: Ben Levinsky <BLEVINSK@xilinx.com>, linus.walleij@linaro.org
Cc: Catalin Marinas <catalin.marinas@arm.com>,
Stefano Stabellini <stefanos@xilinx.com>,
"Ed T. Mooring" <emooring@xilinx.com>,
"sunnyliangjy@gmail.com" <sunnyliangjy@gmail.com>,
Punit Agrawal <punit1.agrawal@toshiba.co.jp>,
Michal Simek <michals@xilinx.com>,
"michael.auchter@ni.com" <michael.auchter@ni.com>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
"linux-remoteproc@vger.kernel.org"
<linux-remoteproc@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: RE: [PATCH v18 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings
Date: Thu, 8 Oct 2020 13:22:09 -0700 (PDT) [thread overview]
Message-ID: <alpine.DEB.2.21.2010081304550.23978@sstabellini-ThinkPad-T480s> (raw)
In-Reply-To: <BYAPR02MB4407F9D8A60519D00F317D27B50B0@BYAPR02MB4407.namprd02.prod.outlook.com>
On Thu, 8 Oct 2020, Ben Levinsky wrote:
> > Does it mean that the main CPU see the memory of the
> > R5 as "some kind of TCM" and that TCM is physically
> > mapped at 0xffe00000 (ITCM) and 0xffe20000 (DTCM)?
> >
> > If the first is ITCM and the second DTCM that is pretty
> > important to point out, since this reflects the harvard
> > architecture properties of these two memory areas.
Hi Linus,
I don't think Xilinx TCMs are split in ITCM and DTCM in the way you
describe here: https://www.kernel.org/doc/Documentation/arm/tcm.txt.
Either TCM could be used for anything. See
https://www.xilinx.com/support/documentation/user_guides/ug1085-zynq-ultrascale-trm.pdf
at page 82.
next prev parent reply other threads:[~2020-10-08 20:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 16:06 [PATCH v18 0/5] Provide basic driver to control Arm R5 co-processor found on Xilinx ZynqMP Ben Levinsky
2020-10-05 16:06 ` [PATCH v18 1/5] firmware: xilinx: Add ZynqMP firmware ioctl enums for RPU configuration Ben Levinsky
2020-10-05 16:06 ` [PATCH v18 2/5] firmware: xilinx: Add shutdown/wakeup APIs Ben Levinsky
2020-10-05 16:06 ` [PATCH v18 3/5] firmware: xilinx: Add RPU configuration APIs Ben Levinsky
2020-10-05 16:06 ` [PATCH v18 4/5] dt-bindings: remoteproc: Add documentation for ZynqMP R5 rproc bindings Ben Levinsky
2020-10-08 12:37 ` Linus Walleij
2020-10-08 14:21 ` Ben Levinsky
2020-10-08 16:45 ` Ben Levinsky
2020-10-08 20:22 ` Stefano Stabellini [this message]
2020-10-08 20:54 ` Linus Walleij
2020-10-05 16:06 ` [PATCH v18 5/5] remoteproc: Add initial zynqmp R5 remoteproc driver Ben Levinsky
2020-10-05 19:34 ` Michael Auchter
2020-10-06 19:15 ` Ben Levinsky
2020-10-06 21:31 ` Michael Auchter
2020-10-06 21:46 ` Ben Levinsky
2020-10-06 22:20 ` Michael Auchter
2020-10-07 14:31 ` Ben Levinsky
2020-10-15 18:31 ` Ben Levinsky
2020-10-19 20:43 ` Stefano Stabellini
2020-10-19 21:33 ` Ben Levinsky
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