On Wed, Aug 27, 2025 at 04:35:59AM +0300, Dmitry Baryshkov wrote:

On Tue, Aug 26, 2025 at 11:51:02PM +0530, Wasim Nazir wrote:

quoted

Enhance the Qualcomm Lemans EVK board file to support essential
peripherals and improve overall hardware capabilities, as
outlined below:
  - Enable GPI (Generic Peripheral Interface) DMA-0/1/2 and QUPv3-0/2
    controllers to facilitate DMA and peripheral communication.
  - Add support for PCIe-0/1, including required regulators and PHYs,
    to enable high-speed external device connectivity.
  - Integrate the TCA9534 I/O expander via I2C to provide 8 additional
    GPIO lines for extended I/O functionality.
  - Enable the USB0 controller in device mode to support USB peripheral
    operations.
  - Activate remoteproc subsystems for supported DSPs such as Audio DSP,
    Compute DSP-0/1 and Generic DSP-0/1, along with their corresponding
    firmware.
  - Configure nvmem-layout on the I2C EEPROM to store data for Ethernet
    and other consumers.
  - Enable the QCA8081 2.5G Ethernet PHY on port-0 and expose the
    Ethernet MAC address via nvmem for network configuration.
    It depends on CONFIG_QCA808X_PHY to use QCA8081 PHY.
  - Add support for the Iris video decoder, including the required
    firmware, to enable video decoding capabilities.
  - Enable SD-card slot on SDHC.

Co-developed-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Co-developed-by: Sushrut Shree Trivedi <redacted>
Signed-off-by: Sushrut Shree Trivedi <redacted>
Co-developed-by: Nirmesh Kumar Singh <redacted>
Signed-off-by: Nirmesh Kumar Singh <redacted>
Co-developed-by: Krishna Kurapati <redacted>
Signed-off-by: Krishna Kurapati <redacted>
Co-developed-by: Mohd Ayaan Anwar <redacted>
Signed-off-by: Mohd Ayaan Anwar <redacted>
Co-developed-by: Dikshita Agarwal <redacted>
Signed-off-by: Dikshita Agarwal <redacted>
Co-developed-by: Monish Chunara <redacted>
Signed-off-by: Monish Chunara <redacted>
Co-developed-by: Vishal Kumar Pal <redacted>
Signed-off-by: Vishal Kumar Pal <redacted>
Signed-off-by: Wasim Nazir <redacted>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 387 ++++++++++++++++++++++++++++++++
 1 file changed, 387 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index 9e415012140b..642b66c4ad1e 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts

@@ -16,7 +16,10 @@ / {
 	compatible = "qcom,lemans-evk", "qcom,qcs9100", "qcom,sa8775p";
 
 	aliases {
+		ethernet0 = &ethernet0;
+		mmc1 = &sdhc;
 		serial0 = &uart10;
+		serial1 = &uart17;
 	};
 
 	chosen {

@@ -46,6 +49,30 @@ edp1_connector_in: endpoint {
 			};
 		};
 	};
+
+	vmmc_sdc: regulator-vmmc-sdc {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmc_sdc";

Non-switchable, always enabled?

According to the hardware schematic, the VMMC supply to the SD card is connected
to an always-on rail. Therefore, it remains continuously enabled and cannot be
turned off via software.

quoted

+
+		regulator-min-microvolt = <2950000>;
+		regulator-max-microvolt = <2950000>;
+	};
+
+	vreg_sdc: regulator-vreg-sdc {
+		compatible = "regulator-gpio";
+
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <2950000>;
+		regulator-name = "vreg_sdc";
+		regulator-type = "voltage";

This one also can not be disabled?

This is a voltage translator regulator for the SD Card IO lines (vqmmc), so it
can be at either of the 2 mentioned voltage levels : 1.8 V or 2.95 V, and cannot
be disabled.

quoted

+
+		startup-delay-us = <100>;
+
+		gpios = <&expander1 7 GPIO_ACTIVE_HIGH>;
+
+		states = <1800000 0x1
+			  2950000 0x0>;
+	};
 };
 

Regards,
Monish