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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-315bebde2e6sm8918689eec.21.2026.08.07.09.35.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Aug 2026 09:35:47 -0700 (PDT) From: Md Sadre Alam Date: Fri, 07 Aug 2026 22:05:31 +0530 Subject: [PATCH v2 1/3] arm64: dts: qcom: ipq9574-rdp-common: Enable quad SPI mode for SPI-NAND Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260807-quad_dts-v2-1-6f578d4152b7@oss.qualcomm.com> References: <20260807-quad_dts-v2-0-6f578d4152b7@oss.qualcomm.com> In-Reply-To: <20260807-quad_dts-v2-0-6f578d4152b7@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Md Sadre Alam , Konrad Dybcio X-Mailer: b4 0.14.3 X-Proofpoint-ORIG-GUID: tciCA-mmBV0BH_E_0ce98GWQ-IELJfAA X-Proofpoint-GUID: tciCA-mmBV0BH_E_0ce98GWQ-IELJfAA X-Proofpoint-Spam-Info: AW1haW4tMjYwODA3MDEyOSBTYWx0ZWRfX44KNsVv+fSFY 6rV7p/xGicP4ht6efKnvqe8JQFAfSHMBSLfvXHOFB7W3ID/vyZySulmsxYdYVGFBtdQAheGCbEW INYv/sBKhiBrUeCu7tGWt4eJO7t9jtc= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA3MDEyOSBTYWx0ZWRfXycQ5hlnSgR89 MD5wugVThA91TrT5FD8LnejuyUTNMLApeYRT6DCslNrbLqwhT1I2rssvLwsvimTtmKPEzbOOX6+ KaDAxeZSuifdGJNcj/c9nUMqQjcgd0OLZTzZyIYlrNLVRCso/YEUN8N6ljHxsGcByENrQvHX5vx R7bTeq3AWlT6iwwgTukJyajjMJ/egF5hLEjOq81JoANy1LuWfhI0bxXNVMzDKtT2bZEcPjRHTak FD/xZGAR4lg/A7J8v2g1E9JZPisk+9Ha0y2bDKV5KneA9CQWthUsWb+m+JlKBbUSJPgizNTQfXE cVVQk8xlRSIR2dyu00aS2hNvC6uuFPOhWQnjJmoB2VFq/1iKFArzanx1axATHzvLX7aMl/kESiV GTeKf6chA8K0K+el+9XpOOkPUFS5GuadLgZWk8+3aRy3tmudRaYTFBWtV0a+1sgflH53+WzClzU wdPiqdlBiUD3F0Q3BtQ== X-Authority-Analysis: v=2.4 cv=X9Ni7mTe c=1 sm=1 tr=0 ts=6a760965 cx=c_pps a=oF/VQ+ItUULfLr/lQ2/icg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=EUspDBNiAAAA:8 a=QrhUAEvljbRiGgZU1AMA:9 a=QEXdDO2ut3YA:10 a=3WC7DwWrALyhR5TkjVHa:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-07_03,2026-08-07_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 bulkscore=0 phishscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 impostorscore=0 suspectscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608070129 Set the SPI-NAND device node to use 4-bit transmit and receive bus widths. The board supports quad SPI transfers, but the device tree currently does not describe the wider bus. Add spi-tx-bus-width and spi-rx-bus-width so the controller and flash can use quad mode instead of single-bit transfers. Reviewed-by: Konrad Dybcio Signed-off-by: Md Sadre Alam --- arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi b/arch/arm64/= boot/dts/qcom/ipq9574-rdp-common.dtsi index 62877b46f9b3..86138529ba77 100644 --- a/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq9574-rdp-common.dtsi @@ -249,6 +249,8 @@ flash@0 { nand-ecc-engine =3D <&qpic_nand>; nand-ecc-strength =3D <4>; nand-ecc-step-size =3D <512>; + spi-rx-bus-width =3D <4>; + spi-tx-bus-width =3D <4>; }; }; =20 --=20 2.34.1 From nobody Tue Sep 29 12:02:20 2026 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3A6604749F0 for ; Fri, 7 Aug 2026 16:35:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-315bebde2e6sm8918689eec.21.2026.08.07.09.35.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Aug 2026 09:35:51 -0700 (PDT) From: Md Sadre Alam Date: Fri, 07 Aug 2026 22:05:32 +0530 Subject: [PATCH v2 2/3] arm64: dts: qcom: ipq5424-rdp466: Enable quad SPI mode for SPI-NAND Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260807-quad_dts-v2-2-6f578d4152b7@oss.qualcomm.com> References: <20260807-quad_dts-v2-0-6f578d4152b7@oss.qualcomm.com> In-Reply-To: <20260807-quad_dts-v2-0-6f578d4152b7@oss.qualcomm.com> To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Md Sadre Alam , Konrad Dybcio X-Mailer: b4 0.14.3 X-Authority-Analysis: v=2.4 cv=Fp01OWrq c=1 sm=1 tr=0 ts=6a76096a cx=c_pps a=oF/VQ+ItUULfLr/lQ2/icg==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=7mV663YIiae9hK7Uy8kA:9 a=QEXdDO2ut3YA:10 a=3WC7DwWrALyhR5TkjVHa:22 X-Proofpoint-GUID: _iKK1FLN7vK6PtB49_qjJRNdOi8vcKRx X-Proofpoint-ORIG-GUID: _iKK1FLN7vK6PtB49_qjJRNdOi8vcKRx X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODA3MDEyOSBTYWx0ZWRfX+LiShq45fajE 8n2ZvnTGNyiEmOPWQ0mJKwmSZoxNhF9XGpgXv53H+rrudefrWDw+rkv1hM+3Dbw/1nv8QtA6QM6 +WlEjPfowAmNftFpajIp/FNPQZxCR5lfoLP9bddJyxZL2Z1BCn2q9PtRNuETBxj/1r9syJZdHDj +lU+AVlfaOkl5eTh6rTW74x/IAawZuT4I8s4xuOKy1DwgHncsXs0teXxIY8rzwf58yhTVYEwpHI sQQB7TE7FxnPx9bttSH7WLS/rnRe2JnuBDezMFgYjAswYCPdVIFbEBsS4gVgU2gcGvRZ+e8P3Yw guOjSFAbFhs4Nk6/WE+izqWAi4eRHocbGyuD8rFFt9EeSAvYvomsDSjfoYoCYvrm8QxMU6dxq+i X6SMQjOh1FupeZTFzXawKAnGU5IEkZDeWtXg07Mr3vy9PPSOvAyeSCZSKy+JL4xzxQJMP+euTMi 4CF/N5TtzoX/eRnTkkA== X-Proofpoint-Spam-Info: AW1haW4tMjYwODA3MDEyOSBTYWx0ZWRfX8RmS7m95ggTv lMbQNLycTB4f1De/2ZzM1XuZFytObOeFz9e/ckGZfl5sCCGlhX4zn9lZJiDqcttIGSqNtXJFpuC 9FHfLIzeirm9klzqSpId5/cUs92iwoA= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-07_03,2026-08-07_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 priorityscore=1501 spamscore=0 clxscore=1015 adultscore=0 impostorscore=0 suspectscore=0 malwarescore=0 lowpriorityscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608070129 Enable quad SPI transfers for the SPI-NAND device by setting both spi-rx- bus-width and spi-tx-bus-width to 4. Without these properties, the device uses the default single-bit bus width. Configure the board to use 4-bit read and write transfers so the controller and flash can operate in quad SPI mode. Reviewed-by: Konrad Dybcio Signed-off-by: Md Sadre Alam --- arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts b/arch/arm64/boot/= dts/qcom/ipq5424-rdp466.dts index be8657239c46..793afc3ee82e 100644 --- a/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts +++ b/arch/arm64/boot/dts/qcom/ipq5424-rdp466.dts @@ -261,6 +261,8 @@ flash@0 { nand-ecc-engine =3D <&qpic_nand>; nand-ecc-strength =3D <4>; nand-ecc-step-size =3D <512>; + spi-rx-bus-width =3D <4>; + spi-tx-bus-width =3D <4>; }; }; =20 --=20 2.34.1 From nobody Tue Sep 29 12:02:20 2026 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 304F5442384 for ; Fri, 7 Aug 2026 16:35:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; 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Set spi-rx-bus-width and spi-tx-bus-width to 4 to enable quad read and write transfers and improve SPI-NAND throughput. Reviewed-by: Konrad Dybcio Signed-off-by: Md Sadre Alam --- arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi b/arch/arm64/= boot/dts/qcom/ipq5332-rdp-common.dtsi index 3bbf748f2e5c..6f5b193a204b 100644 --- a/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5332-rdp-common.dtsi @@ -141,5 +141,7 @@ flash@0 { nand-ecc-engine =3D <&qpic_nand>; nand-ecc-strength =3D <4>; nand-ecc-step-size =3D <512>; + spi-rx-bus-width =3D <4>; + spi-tx-bus-width =3D <4>; }; }; --=20 2.34.1