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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c4cbf28faf8sm21942789a12.7.2026.01.13.18.27.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Jan 2026 18:27:21 -0800 (PST) Message-ID: <3906614d-d9df-485c-963b-603e2311bc2c@oss.qualcomm.com> Date: Wed, 14 Jan 2026 10:27:16 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board To: Dmitry Baryshkov Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20260113-purwa-v3-0-16eefacbdce9@oss.qualcomm.com> <20260113102822.590677-4-yijie.yang@oss.qualcomm.com> <2qa3kn6gw4f5qlncq6iwgxattfbbztu42gpcbekqfghcrdg3l5@z7zsx44xch7a> Content-Language: en-US From: Yijie Yang In-Reply-To: <2qa3kn6gw4f5qlncq6iwgxattfbbztu42gpcbekqfghcrdg3l5@z7zsx44xch7a> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTE0MDAxNiBTYWx0ZWRfX9jf9FeZgfr1c +x5M4EXLhKU0fp2MphVQl4V1FMobeIdYNCBCwK+lHf56Y3Bwq3HfEmMaGYzQ5jXq0ihotnC5Iyy fFpV/3Kh2CQwA6mhtm6Gla6wQomiE5v0XXCA/v6w3F6AnJ2vqNnXDUgw1LqJstk7iTaQli/LI/+ g2xfBcqOy5qGL3Cx//kZUxwLPE8cbJbY0fWG+tufdZjdlfMLKDUvmxl1P4iPDm+WQKQlN4D3eos QBYNlfYzrKDt6uZ1ouAYDOHZgi4xH+HtlsW6UTUrU2sGMrgDhp8ZF/vNPpq+9xb7n7xgeEn9h+V g7hLW79E9boiUvtsz4VK9Mk7/gPgUlikZ6KzbVEjLwgj+sB2SmgiW8xYw6SAgcBCD1DfGAYDzAu dRBN5u4hGEj5F8BcifllbUBDh2224OXSdwz7sbl8jbjjeuz/dIy+K84iICa5T/PNU6pVSyZ/fg5 U1nn5NblTNjencJaNxQ== X-Authority-Analysis: v=2.4 cv=BZnVE7t2 c=1 sm=1 tr=0 ts=6966ff0b cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=XouMtsvGk61V0B9W5bUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-ORIG-GUID: eQyBPEzZIsS_UJHhbk0uuTpGJ-yXoej4 X-Proofpoint-GUID: eQyBPEzZIsS_UJHhbk0uuTpGJ-yXoej4 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-14_01,2026-01-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 priorityscore=1501 bulkscore=0 spamscore=0 adultscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 clxscore=1015 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601140016 On 1/13/2026 6:52 PM, Dmitry Baryshkov wrote: > On Tue, Jan 13, 2026 at 06:28:16PM +0800, YijieYang wrote: >> From: Yijie Yang >> >> The PURWA-IOT-EVK is an evaluation platform for IoT products, composed of >> the Purwa IoT SoM and a carrier board. Together, they form a complete >> embedded system capable of booting to UART. >> >> PURWA-IOT-EVK uses the PS8833 as a retimer for USB0, unlike HAMOA-IOT-EVK. >> Meanwhile, USB0 bypasses the SBU selector FSUSB42. As a result, the glink >> topology differs from that of HAMOA-IOT-EVK. > > What is "glink topology"? What I’m referring to here is that the graph composed of glink nodes and their peers. > >> >> Make the following peripherals on the carrier board enabled: >> - UART >> - On-board regulators >> - USB Type-C mux >> - Pinctrl >> - Embedded USB (EUSB) repeaters >> - NVMe >> - pmic-glink >> - USB DisplayPorts >> - Bluetooth >> - WLAN >> - Audio >> - PCIe ports for PCIe3 through PCIe6a >> >> Signed-off-by: Yijie Yang >> --- >> arch/arm64/boot/dts/qcom/Makefile | 1 + >> .../{hamoa-iot-evk.dts => purwa-iot-evk.dts} | 102 +++++++++++------- >> 2 files changed, 65 insertions(+), 38 deletions(-) >> copy arch/arm64/boot/dts/qcom/{hamoa-iot-evk.dts => purwa-iot-evk.dts} (95%) >> >> @@ -1102,9 +1140,7 @@ edp_bl_reg_en: edp-bl-reg-en-state { >> pins = "gpio10"; >> function = "normal"; >> }; >> -}; >> >> -&pmc8380_3_gpios { > > This needs to be fixed in hamoa-iot-evk.dtsi. Will do. > >> pm_sde7_aux_3p3_en: pcie-aux-3p3-default-state { >> pins = "gpio8"; >> function = "normal"; >> @@ -1171,16 +1207,6 @@ &smb2360_2_eusb2_repeater { >> vdd3-supply = <&vreg_l8b_3p0>; >> }; >> >> -&spi11 { >> - status = "okay"; >> - >> - tpm@0 { >> - compatible = "st,st33htpm-spi", "tcg,tpm_tis-spi"; > > No TPM on the board? It has not been verified yet since this patch set was sent out; I will add it. > >> - reg = <0>; >> - spi-max-frequency = <20000000>; >> - }; >> -}; >> - >> &swr0 { >> status = "okay"; >> >> @@ -1470,7 +1496,7 @@ &usb_1_ss0_hsphy { >> }; >> >> &usb_1_ss0_qmpphy_out { >> - remote-endpoint = <&pmic_glink_ss0_ss_in>; >> + remote-endpoint = <&retimer_ss0_ss_in>; >> }; >> >> &usb_1_ss1_dwc3_hs { >> -- >> 2.34.1 >> > -- Best Regards, Yijie