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[83.9.1.44]) by smtp.gmail.com with ESMTPSA id 23-20020ac25f57000000b00492e5d31201sm526826lfz.7.2022.12.17.06.26.10 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 17 Dec 2022 06:26:11 -0800 (PST) Message-ID: <292b1bd2-8745-04d1-5d7b-3e201e1ac33b@linaro.org> Date: Sat, 17 Dec 2022 15:26:09 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.6.0 Subject: Re: [PATCH v4 3/4] arm64: dts: qcom: sm6125: Add apps_smmu with streamID to SDHCI 1/2 nodes Content-Language: en-US To: Marijn Suijten , phone-devel@vger.kernel.org, Will Deacon , Joerg Roedel , Bjorn Andersson Cc: ~postmarketos/upstreaming@lists.sr.ht, AngeloGioacchino Del Regno , Konrad Dybcio , Martin Botka , Jami Kettunen , Lux Aliaga , Robin Murphy , Rob Herring , Krzysztof Kozlowski , Andy Gross , Dmitry Baryshkov , Thierry Reding , Melody Olvera , Greg Kroah-Hartman , Bhupesh Sharma , Douglas Anderson , linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20221216215819.1164973-1-marijn.suijten@somainline.org> <20221216215819.1164973-4-marijn.suijten@somainline.org> From: Konrad Dybcio In-Reply-To: <20221216215819.1164973-4-marijn.suijten@somainline.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16.12.2022 22:58, Marijn Suijten wrote: > When enabling the APPS SMMU the mainline driver reconfigures the SMMU > from its bootloader configuration, loosing the stream mapping for (among > which) the SDHCI hardware and breaking its ADMA feature. This feature > can be disabled with: > > sdhci.debug_quirks=0x40 > > But it is of course desired to have this feature enabled and working > through the SMMU. > > Signed-off-by: Marijn Suijten > --- Reviewed-by: Konrad Dybcio Konrad > arch/arm64/boot/dts/qcom/sm6125.dtsi | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qcom/sm6125.dtsi > index 347665c2067c..f560499cc0ca 100644 > --- a/arch/arm64/boot/dts/qcom/sm6125.dtsi > +++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi > @@ -468,6 +468,7 @@ sdhc_1: mmc@4744000 { > <&gcc GCC_SDCC1_APPS_CLK>, > <&xo_board>; > clock-names = "iface", "core", "xo"; > + iommus = <&apps_smmu 0x160 0>; > > power-domains = <&rpmpd SM6125_VDDCX>; > > @@ -494,6 +495,7 @@ sdhc_2: mmc@4784000 { > <&gcc GCC_SDCC2_APPS_CLK>, > <&xo_board>; > clock-names = "iface", "core", "xo"; > + iommus = <&apps_smmu 0x180 0>; > > pinctrl-0 = <&sdc2_on_state>; > pinctrl-1 = <&sdc2_off_state>;