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ESMTPS id 68F80CE21C8; Thu, 21 Sep 2023 11:37:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2B630C4AF78; Thu, 21 Sep 2023 11:37:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695296254; bh=sLJ/l/n2ptddnatCSsMBpdcrW0dHjKWvBZR46GW7NXU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=hoaZm/IxFhL5Qc7SzxCvw1a/BwOV0idneO6HYD8sekXuXT5sltwsCosABftZ0SOFs CzbOgBQmOlSffpzZrVjpHoBvWK120MFC4WW0o4zeWHvleGyeIgnidTnne8ch7AgWHs TJanr6xGnnVUs15YI0qHgW8HsPYvGXXnLa4tAurEmIn3Wh6WszUDPC3G/WhFnedyxp hNLD3vpddL2+QXSXaA5WMFC1FHqgwtEAqXsP5O9aMbkJEe8GMo9swz0DMV31iPWkny LySGFguK6lz00gux5IDKVdydoEe47DGjOLErKtX0r+T/WFeeJhv84zOZspK66hDdDW fjuA3Sn8PHrfg== Message-ID: <6f2b38f8-1962-46f2-a095-b1eaf99ed407@kernel.org> Date: Thu, 21 Sep 2023 14:37:29 +0300 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] arm64: dts: ti: am642-evm: Add overlay for NAND expansion card Content-Language: en-US To: Andrew Davis , Nishanth Menon Cc: vigneshr@ti.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, srk@ti.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Siddharth Vadapalli References: <20230920133450.54226-1-rogerq@kernel.org> <20230920133450.54226-3-rogerq@kernel.org> <20230920135802.3ej2wcuaruqjidel@uncouth> <20230920164424.rrjvm6nvtv4ysyrw@unreal> From: Roger Quadros In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230921_043738_660776_2B762CC6 X-CRM114-Status: GOOD ( 16.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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bh=sLJ/l/n2ptddnatCSsMBpdcrW0dHjKWvBZR46GW7NXU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=hoaZm/IxFhL5Qc7SzxCvw1a/BwOV0idneO6HYD8sekXuXT5sltwsCosABftZ0SOFs CzbOgBQmOlSffpzZrVjpHoBvWK120MFC4WW0o4zeWHvleGyeIgnidTnne8ch7AgWHs TJanr6xGnnVUs15YI0qHgW8HsPYvGXXnLa4tAurEmIn3Wh6WszUDPC3G/WhFnedyxp hNLD3vpddL2+QXSXaA5WMFC1FHqgwtEAqXsP5O9aMbkJEe8GMo9swz0DMV31iPWkny LySGFguK6lz00gux5IDKVdydoEe47DGjOLErKtX0r+T/WFeeJhv84zOZspK66hDdDW fjuA3Sn8PHrfg== Message-ID: <6f2b38f8-1962-46f2-a095-b1eaf99ed407@kernel.org> Date: Thu, 21 Sep 2023 14:37:29 +0300 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] arm64: dts: ti: am642-evm: Add overlay for NAND expansion card Content-Language: en-US To: Andrew Davis , Nishanth Menon Cc: vigneshr@ti.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, srk@ti.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Siddharth Vadapalli References: <20230920133450.54226-1-rogerq@kernel.org> <20230920133450.54226-3-rogerq@kernel.org> <20230920135802.3ej2wcuaruqjidel@uncouth> <20230920164424.rrjvm6nvtv4ysyrw@unreal> From: Roger Quadros In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 20/09/2023 20:06, Andrew Davis wrote: > On 9/20/23 11:44 AM, Nishanth Menon wrote: >> On 18:18-20230920, Roger Quadros wrote: >>> >>> >>> On 20/09/2023 16:58, Nishanth Menon wrote: >>>> On 16:34-20230920, Roger Quadros wrote: >>>>> The NAND expansion card plugs in over the HSE (High Speed Expansion) >>>>> connector. Add support for it. >>>>> >>>>> Signed-off-by: Roger Quadros >>>>> --- >>>>>   arch/arm64/boot/dts/ti/Makefile               |   1 + >>>>>   arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso | 140 ++++++++++++++++++ >>>>>   2 files changed, 141 insertions(+) >>>>>   create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso >>>>> >>>>> diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile >>>>> index 06d6f264f292..ece74085a6be 100644 >>>>> --- a/arch/arm64/boot/dts/ti/Makefile >>>>> +++ b/arch/arm64/boot/dts/ti/Makefile >>>>> @@ -29,6 +29,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb >>>>>     # Boards with AM64x SoC >>>>>   dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb >>>>> +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-nand.dtbo >>>>>   dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb >>>>>   dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb >>>>>   dtb-$(CONFIG_ARCH_K3) += k3-am642-tqma64xxl-mbax4xxl.dtb >>>> >>>> Also see https://lore.kernel.org/all/20230911165610.GA1362932-robh@kernel.org/ >>>> >>>> you may not get the dtbo installed when doing make dtbs_install >>>> >>>> [...] >>>> >>> >>> $ v8make dtbs_install INSTALL_DTBS_PATH=/tmp >>>    INSTALL /tmp/ti/k3-am625-beagleplay.dtb >>>    INSTALL /tmp/ti/k3-am625-phyboard-lyra-rdk.dtb >>>    INSTALL /tmp/ti/k3-am625-sk.dtb >>>    INSTALL /tmp/ti/k3-am625-verdin-nonwifi-dahlia.dtb >>>    INSTALL /tmp/ti/k3-am625-verdin-nonwifi-dev.dtb >>>    INSTALL /tmp/ti/k3-am625-verdin-nonwifi-yavia.dtb >>>    INSTALL /tmp/ti/k3-am625-verdin-wifi-dahlia.dtb >>>    INSTALL /tmp/ti/k3-am625-verdin-wifi-dev.dtb >>>    INSTALL /tmp/ti/k3-am625-verdin-wifi-yavia.dtb >>>    INSTALL /tmp/ti/k3-am62-lp-sk.dtb >>>    INSTALL /tmp/ti/k3-am62x-sk-hdmi-audio.dtbo >>>    INSTALL /tmp/ti/k3-am62a7-sk.dtb >>>    INSTALL /tmp/ti/k3-am62p5-sk.dtb >>>    INSTALL /tmp/ti/k3-am642-evm.dtb >>>    INSTALL /tmp/ti/k3-am642-evm-nand.dtbo >>> ^^^^ >>>    INSTALL /tmp/ti/k3-am642-phyboard-electra-rdk.dtb >>>    INSTALL /tmp/ti/k3-am642-sk.dtb >>> >>> >>> What did I miss? >> >> I missed it, actually. See Rob's comment: >> https://lore.kernel.org/all/CAL_Jsq+GR3hP6hFvFn2z5aXvSXnh9butD3aKZ-y_XJgx0_YPTw@mail.gmail.com/ >> >> Having orphan dtbo is apparently frowned upon >> > > And if you apply these overlays to the base DTB then it gets > symbols added automatically, no need for your patch [1/2] here. > Is this OK? k3-am642-evm-nand-dtbs := k3-am642-evm.dtb k3-am642-evm-nand.dtbo dtb-$(CONFIG_ARCH_K3) += k3-am642-evm-nand.dtb So patch 1 is not required in this case but we have an extra dtb file which is not really required. I have 2 more issues to point out 1) With existing examples e.g. J7200 EVM wouldn't k3-j7200-evm.dtb include the k3-j7200-evm-quad-port-eth-exp.dtbo? Is this what we really want? likewise for k3-j721e-evm.dtb and k3-am654-gp-evm.dtb 2) Another issue (unrelated to this change) is the below warning: arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso:65.8-140.3: Warning (avoid_default_addr_size): /fragment@3/__overlay__: Relying on default #address-cells value arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso:65.8-140.3: Warning (avoid_default_addr_size): /fragment@3/__overlay__: Relying on default #size-cells value This is because we use the 'ranges' property in the gpmc0 node and the compiler doesn't know the #address/size-cells of the parent node. Is there a trick to specify it in the dtso file? -- cheers, -roger