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Sun, 14 Apr 2019 10:55:54 -0700 (PDT) Subject: Re: [PATCH v3 4/5] dt-bindings: mtd: Add bindings for TI's AM654 HyperBus memory controller To: Vignesh Raghavendra , David Woodhouse , Brian Norris , Boris Brezillon , Marek Vasut , Richard Weinberger , Rob Herring Cc: linux-mtd@lists.infradead.org, Tudor Ambarus , Miquel Raynal , Joakim Tjernlund , devicetree@vger.kernel.org, Mason Yang , linux-arm-kernel@lists.infradead.org, nsekhar@ti.com, linux-kernel@vger.kernel.org References: <20190412092923.24919-1-vigneshr@ti.com> <20190412092923.24919-5-vigneshr@ti.com> From: Sergei Shtylyov Organization: Cogent Embedded Message-ID: <6a69ce6f-66c0-3f7c-a326-d76ee717cacf@cogentembedded.com> Date: Sun, 14 Apr 2019 20:55:53 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <20190412092923.24919-5-vigneshr@ti.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-MW Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 04/12/2019 12:29 PM, Vignesh Raghavendra wrote: > Add binding documentation for TI's HyperBus memory controller present on > AM654 SoC. > > Signed-off-by: Vignesh Raghavendra > --- > .../devicetree/bindings/mtd/ti,am654-hbmc.txt | 31 +++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 32 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt > > diff --git a/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt b/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt > new file mode 100644 > index 000000000000..00888482df25 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/ti,am654-hbmc.txt > @@ -0,0 +1,31 @@ [...] > +Optional properties: > +- mux-controls: phandle to the multiplexer that controls selection of > + HBMC vs OSPI. Mux state of 1 indicates HBMC is selected. I thought this is usually done with the help of drivers/pinctrl/.. > + > +Example: > + hbmc: hbmc@47034000 { > + compatible = "ti,am654-hbmc"; > + reg = <0x0 0x47034000 0x0 0x100>, > + <0x5 0x00000000 0x1 0x0000000>; > + power-domains = <&k3_pds 55>; > + #address-cells = <1>; > + #size-cells = <1>; > + ranges = <0x0 0x5 0x00000000 0x4000000>, /* CS0 - 64MB */ > + <0x1 0x5 0x04000000 0x4000000>; /* CS1 - 64MB > + > + /* Slave flash node */ > + flash@0{ Need space before {. > + compatible = "cypress,hyperflash"; > + reg = <0x0 0x4000000>; > + }; > + }; [...] MBR, Sergei