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[72.83.177.149]) by smtp.gmail.com with ESMTPSA id l3-20020a37f903000000b006ee2953fac4sm2196727qkj.136.2022.10.18.05.58.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 Oct 2022 05:58:40 -0700 (PDT) Message-ID: <573603ff-b3d3-0be8-1a56-53d980e96dd5@linaro.org> Date: Tue, 18 Oct 2022 08:58:39 -0400 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.0 Subject: Re: [PATCH 2/3] arm64: dts: ti: Add initial support for AM68 SK System on Module Content-Language: en-US To: Sinthu Raja , Nishanth Menon , Tero Kristo , Rob Herring Cc: Vignesh Raghavendra , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Sinthu Raja References: <20221018123849.23695-1-sinthu.raja@ti.com> <20221018123849.23695-3-sinthu.raja@ti.com> From: Krzysztof Kozlowski In-Reply-To: <20221018123849.23695-3-sinthu.raja@ti.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 18/10/2022 08:38, Sinthu Raja wrote: > From: Sinthu Raja > > AM68 Starter Kit (SK)[1] is a low cost, small form factor board designed > for TI’s AM68 SoC. TI’s AM68 SoC comprises of dual core A72, high > performance vision accelerators, hardware accelerators, latest C71x > DSP, high bandwidth real-time IPs for capture and display. The SoC is > power optimized to provide best in class performance for industrial > applications. > > AM68 SK supports the following interfaces: > * 16 GB LPDDR4 RAM > * x1 Gigabit Ethernet interface > * x1 USB 3.1 Type-C port > * x2 USB 3.1 Type-A ports > * x1 PCIe M.2 M Key > * 512 Mbit OSPI flash > * x2 CSI2 Camera interface (RPi and TI Camera connector) > * 40-pin Raspberry Pi GPIO header > > SK's System on Module (SoM) contains the SoC and DDR. > Therefore, add DT node for the SOC and DDR on the SoM. > > Schematics: https://www.ti.com/lit/zip/SPRR463 > TRM: http://www.ti.com/lit/pdf/spruj28 > > Signed-off-by: Sinthu Raja > --- > arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi | 129 +++++++++++++++++++++ > 1 file changed, 129 insertions(+) > create mode 100644 arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi > > diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi > new file mode 100644 > index 000000000000..734c13eb0490 > --- /dev/null > +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi > @@ -0,0 +1,129 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/* > + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/ > + */ > + > +/dts-v1/; > + > +#include "k3-j721s2.dtsi" > +#include > + > +/ { > + memory@80000000 { > + device_type = "memory"; > + /* 16 GB RAM */ > + reg = <0x00 0x80000000 0x00 0x80000000>, > + <0x08 0x80000000 0x03 0x80000000>; > + }; > + > + /* Reserving memory regions still pending */ > + reserved_memory: reserved-memory { > + #address-cells = <2>; > + #size-cells = <2>; > + ranges; > + > + secure_ddr: optee@9e800000 { > + reg = <0x00 0x9e800000 0x00 0x01800000>; > + alignment = <0x1000>; > + no-map; > + }; > + Drop empty line. Best regards, Krzysztof