[PATCH v2 0/2] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch

[PATCH v2 0/2] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch

[Krishna Chaitanya Chundru]

This series enables PCIe for the Eliza EVK board (CQS SoM on EVK carrier).

The Eliza EVK exposes two PCIe ports:

- PCIe0 drives an M.2 E key connector. The 3.3V supply is GPIO-controlled
  via a TCA9538 I/O expander on I2C4. The slot hosts a WLAN module
  (connected over PCIe) and a Bluetooth device (connected over UART5),
  modelled with the pcie-m2-e-connector binding.

- PCIe1 (8GT/s x2) connects to a Toshiba TC9563 PCIe switch, whose
  management interface sits on I2C4 (address 0x77). The TC9563 RESX# and
  PERST# lines are OR-ed internally; reset is driven via a TLMM GPIO on
  the RESX# pin. The iommu-map covers all downstream switch ports
  (SID range 0x1400-0x1408).

The M.2 WLAN module carries a Qualcomm QCC2072 Bluetooth chip. A device-ID
entry is added to the M.2 power sequencer so the serdev node for the BT
UART interface is created on PCI enumeration.

Bluetooth is enabled with this patch https://lore.kernel.org/all/20260529175822.3366535-1-yepuri.siddu@oss.qualcomm.com/

This seris Depends-on:
  https://lore.kernel.org/all/20260610-eliza_dt-v1-1-7bb72b75fc5b@oss.qualcomm.com/
  https://lore.kernel.org/all/20260630-eliza-dts-qcs-evk-v4-3-18cbbdba6e7e@oss.qualcomm.com/
  https://lore.kernel.org/all/20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com/

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
Changes in v2:
- Drop patch 3, as this is already applied
- Rebase on top of https://lore.kernel.org/all/20260708055017.A90C91F000E9@smtp.kernel.org/
  and remove pincntrl as pincntrl is added in the eliza.dtsi patch and also remove
  pinctrl for resx as this is covered in pcie1_default_state as perst gpio.
- Link to v1: https://patch.msgid.link/20260703-eliza_evk-v1-0-7624440bd76d@oss.qualcomm.com

To: Bjorn Andersson <andersson@kernel.org>
To: Konrad Dybcio <konradybcio@kernel.org>
To: Rob Herring <robh@kernel.org>
To: Krzysztof Kozlowski <krzk+dt@kernel.org>
To: Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org

---
Krishna Chaitanya Chundru (2):
      arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector
      arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch

 arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 228 ++++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/eliza.dtsi     |   2 +
 2 files changed, 230 insertions(+)
---
base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
change-id: 20260629-eliza_evk-6f30686b161f
prerequisite-message-id: <20260708-eliza_dt-v2-1-e6281da26408@oss.qualcomm.com>
prerequisite-patch-id: 7654ff4f899ac0094a2e791e7f208998fcc7d5fa
prerequisite-patch-id: 9e10dfbe360941cdac0300aaf163149755952f9f
prerequisite-patch-id: fecce0170351baf00cbe8f6b302d1def4d99bbfc
prerequisite-patch-id: 97cd6cb495fdd198f6de7fbe45ef32e4a638ec9c
prerequisite-message-id: <20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com>
prerequisite-patch-id: f3615b5c1e2222a2491f862a7fba3994058ecc53

Best regards,
--  
Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>

[PATCH v2 1/2] arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector

[Krishna Chaitanya Chundru]

The Eliza EVK board features an M.2 E key connector connected to PCIe0.
Enable the PCIe0 root port and its QMP PHY with the necessary RPMH
regulator supplies. The M.2 slot's 3.3V supply rail is GPIO-controlled
via a TCA9538 I/O expander on I2C4.

The M.2 E key slot hosts a WLAN card connected over PCIe and a Bluetooth
device connected over UART. Model the connector using the
pcie-m2-e-connector binding, wiring the PCIe root port and UART5 for
the respective interfaces.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 116 ++++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/eliza.dtsi     |   1 +
 2 files changed, 117 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
index e47b24f8b827..6d76715ccffb 100644
--- a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
+++ b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
@@ -11,6 +11,92 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	vreg_pcie_m_3p3: regulator-3p3 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "vreg_3p3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&gpio_expander1 6 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	connector-0 {
+		compatible = "pcie-m2-e-connector";
+		vpcie3v3-supply = <&vreg_pcie_m_3p3>;
+		w-disable1-gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
+		w-disable2-gpios = <&pm8550vs_g_gpios 4 GPIO_ACTIVE_HIGH>;
+
+		pinctrl-0 = <&m2_w_disable1>, <&m2_w_disable2>;
+		pinctrl-names = "default";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				m2_e_pcie_ep: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&pcieport0_ep>;
+				};
+			};
+
+			port@3 {
+				reg = <3>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				m2_e_uart_ep: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&uart5_ep>;
+				};
+			};
+		};
+	};
+};
+
+&i2c4 {
+	pinctrl-0 = <&qup_i2c4_data_clk>;
+	pinctrl-names = "default";
+
+	clock-frequency = <400000>;
+
+	status = "okay";
+
+	gpio_expander1: gpio@3c {
+		compatible = "ti,tca9538";
+		#gpio-cells = <2>;
+		gpio-controller;
+		reg = <0x3c>;
+	};
+};
+
+&pcie0 {
+	status = "okay";
+};
+
+&pcie0_phy {
+	vdda-phy-supply = <&vreg_l1k>;
+	vdda-pll-supply = <&vreg_l3k>;
+
+	status = "okay";
+};
+
+&pcie0port0 {
+	wake-gpios = <&tlmm 114 GPIO_ACTIVE_LOW>;
+	reset-gpios = <&tlmm 78 GPIO_ACTIVE_LOW>;
+
+	port {
+		pcieport0_ep: endpoint {
+			remote-endpoint = <&m2_e_pcie_ep>;
+		};
+	};
 };
 
 &uart13 {
@@ -18,3 +104,33 @@ &uart13 {
 
 	status = "okay";
 };
+
+&uart5 {
+	status = "okay";
+
+	port {
+		uart5_ep: endpoint {
+			remote-endpoint = <&m2_e_uart_ep>;
+		};
+	};
+};
+
+&pm8550vs_g_gpios {
+	m2_w_disable2: m2-w-disable2-state {
+		pins = "gpio4";
+		function = "normal";
+		input-disable;
+		output-enable;
+		bias-disable;
+		power-source = <2>;
+	};
+};
+
+&tlmm {
+	m2_w_disable1: m2-w-disable1-state {
+		pins = "gpio35";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/eliza.dtsi b/arch/arm64/boot/dts/qcom/eliza.dtsi
index 7cfd242bc192..cce65e18f979 100644
--- a/arch/arm64/boot/dts/qcom/eliza.dtsi
+++ b/arch/arm64/boot/dts/qcom/eliza.dtsi
@@ -1909,6 +1909,7 @@ opp-8000000-3 {
 			};
 
 			pcie0port0: pcie@0 {
+				compatible = "pciclass,0604";
 				device_type = "pci";
 				reg = <0x0 0x0 0x0 0x0 0x0>;
 				bus-range = <0x01 0xff>;

-- 
2.34.1

[PATCH v2 2/2] arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch

[Krishna Chaitanya Chundru]

The Eliza EVK board connects PCIe1 (8GT/s x2) to a Toshiba TC9563
PCIe switch. Enable PCIe1 and its QMP PHY nodes.

TC9563 uses I2C (at address 0x77 on I2C4) for its management interface.

Override the base iommu-map with the expanded set covering all the
switch's downstream ports (0x1400-0x1408 SID range).

The TC9563 RESX# and PERST# are OR-ed internally to assert reset on the
switch. Use TC9563 RESX# pin via a TLMM GPIO and skip wiring PERST#
from the PCIe controller.

Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 112 ++++++++++++++++++++++++++++++++
 arch/arm64/boot/dts/qcom/eliza.dtsi     |   1 +
 2 files changed, 113 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
index 6d76715ccffb..e099b7c8c371 100644
--- a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
+++ b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
@@ -12,6 +12,26 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	vreg_0p9: regulator-0v9 {
+		compatible = "regulator-fixed";
+		regulator-name = "VREG_0P9";
+
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <900000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	vreg_1p8: regulator-1v8 {
+		compatible = "regulator-fixed";
+		regulator-name = "VREG_1P8";
+
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
 	vreg_pcie_m_3p3: regulator-3p3 {
 		compatible = "regulator-fixed";
 
@@ -99,6 +119,98 @@ pcieport0_ep: endpoint {
 	};
 };
 
+&pcie1 {
+	iommu-map = <0x0 &apps_smmu 0x1400 0x1>,
+		    <0x100 &apps_smmu 0x1401 0x1>,
+		    <0x208 &apps_smmu 0x1402 0x1>,
+		    <0x210 &apps_smmu 0x1403 0x1>,
+		    <0x218 &apps_smmu 0x1404 0x1>,
+		    <0x300 &apps_smmu 0x1405 0x1>,
+		    <0x400 &apps_smmu 0x1406 0x1>,
+		    <0x500 &apps_smmu 0x1407 0x1>,
+		    <0x501 &apps_smmu 0x1408 0x1>;
+
+	status = "okay";
+};
+
+&pcie1_phy {
+	vdda-phy-supply = <&vreg_l1k>;
+	vdda-pll-supply = <&vreg_l3k>;
+
+	status = "okay";
+};
+
+&pcie1port0 {
+	wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;
+
+	tc9563: pcie@0,0 {
+		compatible = "pci1179,0623";
+		reg = <0x10000 0x0 0x0 0x0 0x0>;
+		#address-cells = <3>;
+		#size-cells = <2>;
+
+		device_type = "pci";
+		ranges;
+		bus-range = <0x2 0xff>;
+
+		vddc-supply = <&vreg_0p9>;
+		vdd18-supply = <&vreg_1p8>;
+		vdd09-supply = <&vreg_0p9>;
+		vddio1-supply = <&vreg_1p8>;
+		vddio2-supply = <&vreg_1p8>;
+		vddio18-supply = <&vreg_1p8>;
+
+		i2c-parent = <&i2c4 0x77>;
+
+		resx-gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
+
+		pcie@1,0 {
+			reg = <0x20800 0x0 0x0 0x0 0x0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			device_type = "pci";
+			ranges;
+			bus-range = <0x3 0xff>;
+		};
+
+		pcie@2,0 {
+			reg = <0x21000 0x0 0x0 0x0 0x0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			device_type = "pci";
+			ranges;
+			bus-range = <0x4 0xff>;
+		};
+
+		pcie@3,0 {
+			reg = <0x21800 0x0 0x0 0x0 0x0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			ranges;
+			bus-range = <0x5 0xff>;
+
+			pci@0,0 {
+				reg = <0x50000 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				ranges;
+			};
+
+			pci@0,1 {
+				reg = <0x50100 0x0 0x0 0x0 0x0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				device_type = "pci";
+				ranges;
+			};
+		};
+	};
+};
+
 &uart13 {
 	compatible = "qcom,geni-debug-uart";
 
diff --git a/arch/arm64/boot/dts/qcom/eliza.dtsi b/arch/arm64/boot/dts/qcom/eliza.dtsi
index cce65e18f979..363cabc5f55c 100644
--- a/arch/arm64/boot/dts/qcom/eliza.dtsi
+++ b/arch/arm64/boot/dts/qcom/eliza.dtsi
@@ -2102,6 +2102,7 @@ opp-16000000-3 {
 
 			};
 			pcie1port0: pcie@0 {
+				compatible = "pciclass,0604";
 				device_type = "pci";
 				reg = <0x0 0x0 0x0 0x0 0x0>;
 				bus-range = <0x01 0xff>;

-- 
2.34.1

Re: [PATCH v2 2/2] arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch

[Konrad Dybcio]

On 7/8/26 8:17 AM, Krishna Chaitanya Chundru wrote:
> The Eliza EVK board connects PCIe1 (8GT/s x2) to a Toshiba TC9563
> PCIe switch. Enable PCIe1 and its QMP PHY nodes.
> 
> TC9563 uses I2C (at address 0x77 on I2C4) for its management interface.
> 
> Override the base iommu-map with the expanded set covering all the
> switch's downstream ports (0x1400-0x1408 SID range).
> 
> The TC9563 RESX# and PERST# are OR-ed internally to assert reset on the
> switch. Use TC9563 RESX# pin via a TLMM GPIO and skip wiring PERST#
> from the PCIe controller.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Konrad

Re: [PATCH v2 0/2] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch

[Bjorn Andersson]

On Wed, Jul 08, 2026 at 11:47:15AM +0530, Krishna Chaitanya Chundru wrote:
> This series enables PCIe for the Eliza EVK board (CQS SoM on EVK carrier).
> 
> The Eliza EVK exposes two PCIe ports:
> 
> - PCIe0 drives an M.2 E key connector. The 3.3V supply is GPIO-controlled
>   via a TCA9538 I/O expander on I2C4. The slot hosts a WLAN module
>   (connected over PCIe) and a Bluetooth device (connected over UART5),
>   modelled with the pcie-m2-e-connector binding.
> 
> - PCIe1 (8GT/s x2) connects to a Toshiba TC9563 PCIe switch, whose
>   management interface sits on I2C4 (address 0x77). The TC9563 RESX# and
>   PERST# lines are OR-ed internally; reset is driven via a TLMM GPIO on
>   the RESX# pin. The iommu-map covers all downstream switch ports
>   (SID range 0x1400-0x1408).
> 
> The M.2 WLAN module carries a Qualcomm QCC2072 Bluetooth chip. A device-ID
> entry is added to the M.2 power sequencer so the serdev node for the BT
> UART interface is created on PCI enumeration.
> 
> Bluetooth is enabled with this patch https://lore.kernel.org/all/20260529175822.3366535-1-yepuri.siddu@oss.qualcomm.com/
> 
> This seris Depends-on:
>   https://lore.kernel.org/all/20260610-eliza_dt-v1-1-7bb72b75fc5b@oss.qualcomm.com/

Why send this patch, when this dependency is known bad - when would I
ever be able to merge this patch?

And why are you sending separate series concurrently with dependencies
between them!? It's one thing to send patches saying "I depend on
someone else's completely unrelated work", but saying "here's a random
bunch of tangled patches, good luck everyone!" is not okay.

I expect all three patches to be rebased and send in one series that I
can just click "Submit" on next time.

Thanks,
Bjorn

>   https://lore.kernel.org/all/20260630-eliza-dts-qcs-evk-v4-3-18cbbdba6e7e@oss.qualcomm.com/
>   https://lore.kernel.org/all/20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com/
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
> ---
> Changes in v2:
> - Drop patch 3, as this is already applied
> - Rebase on top of https://lore.kernel.org/all/20260708055017.A90C91F000E9@smtp.kernel.org/
>   and remove pincntrl as pincntrl is added in the eliza.dtsi patch and also remove
>   pinctrl for resx as this is covered in pcie1_default_state as perst gpio.
> - Link to v1: https://patch.msgid.link/20260703-eliza_evk-v1-0-7624440bd76d@oss.qualcomm.com
> 
> To: Bjorn Andersson <andersson@kernel.org>
> To: Konrad Dybcio <konradybcio@kernel.org>
> To: Rob Herring <robh@kernel.org>
> To: Krzysztof Kozlowski <krzk+dt@kernel.org>
> To: Conor Dooley <conor+dt@kernel.org>
> Cc: linux-arm-msm@vger.kernel.org
> Cc: devicetree@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> 
> ---
> Krishna Chaitanya Chundru (2):
>       arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector
>       arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch
> 
>  arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 228 ++++++++++++++++++++++++++++++++
>  arch/arm64/boot/dts/qcom/eliza.dtsi     |   2 +
>  2 files changed, 230 insertions(+)
> ---
> base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
> change-id: 20260629-eliza_evk-6f30686b161f
> prerequisite-message-id: <20260708-eliza_dt-v2-1-e6281da26408@oss.qualcomm.com>
> prerequisite-patch-id: 7654ff4f899ac0094a2e791e7f208998fcc7d5fa
> prerequisite-patch-id: 9e10dfbe360941cdac0300aaf163149755952f9f
> prerequisite-patch-id: fecce0170351baf00cbe8f6b302d1def4d99bbfc
> prerequisite-patch-id: 97cd6cb495fdd198f6de7fbe45ef32e4a638ec9c
> prerequisite-message-id: <20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com>
> prerequisite-patch-id: f3615b5c1e2222a2491f862a7fba3994058ecc53
> 
> Best regards,
> --  
> Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
> 

Re: [PATCH v2 0/2] arm64: dts: qcom: eliza-evk: Enable PCIe0 and PCIe1 with M.2 and TC9563 switch

[Krishna Chaitanya Chundru]

On 7/8/2026 9:05 PM, Bjorn Andersson wrote:
> On Wed, Jul 08, 2026 at 11:47:15AM +0530, Krishna Chaitanya Chundru wrote:
>> This series enables PCIe for the Eliza EVK board (CQS SoM on EVK carrier).
>>
>> The Eliza EVK exposes two PCIe ports:
>>
>> - PCIe0 drives an M.2 E key connector. The 3.3V supply is GPIO-controlled
>>   via a TCA9538 I/O expander on I2C4. The slot hosts a WLAN module
>>   (connected over PCIe) and a Bluetooth device (connected over UART5),
>>   modelled with the pcie-m2-e-connector binding.
>>
>> - PCIe1 (8GT/s x2) connects to a Toshiba TC9563 PCIe switch, whose
>>   management interface sits on I2C4 (address 0x77). The TC9563 RESX# and
>>   PERST# lines are OR-ed internally; reset is driven via a TLMM GPIO on
>>   the RESX# pin. The iommu-map covers all downstream switch ports
>>   (SID range 0x1400-0x1408).
>>
>> The M.2 WLAN module carries a Qualcomm QCC2072 Bluetooth chip. A device-ID
>> entry is added to the M.2 power sequencer so the serdev node for the BT
>> UART interface is created on PCI enumeration.
>>
>> Bluetooth is enabled with this patch https://lore.kernel.org/all/20260529175822.3366535-1-yepuri.siddu@oss.qualcomm.com/
>>
>> This seris Depends-on:
>>   https://lore.kernel.org/all/20260610-eliza_dt-v1-1-7bb72b75fc5b@oss.qualcomm.com/
> Why send this patch, when this dependency is known bad - when would I
> ever be able to merge this patch?
>
> And why are you sending separate series concurrently with dependencies
> between them!? It's one thing to send patches saying "I depend on
> someone else's completely unrelated work", but saying "here's a random
> bunch of tangled patches, good luck everyone!" is not okay.
>
> I expect all three patches to be rebased and send in one series that I
> can just click "Submit" on next time.
Sorry for the mess, I will resend all 3 pcie patches in a single series today.

- Krishna Chaitanya.
> Thanks,
> Bjorn
>
>>   https://lore.kernel.org/all/20260630-eliza-dts-qcs-evk-v4-3-18cbbdba6e7e@oss.qualcomm.com/
>>   https://lore.kernel.org/all/20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com/
>>
>> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
>> ---
>> Changes in v2:
>> - Drop patch 3, as this is already applied
>> - Rebase on top of https://lore.kernel.org/all/20260708055017.A90C91F000E9@smtp.kernel.org/
>>   and remove pincntrl as pincntrl is added in the eliza.dtsi patch and also remove
>>   pinctrl for resx as this is covered in pcie1_default_state as perst gpio.
>> - Link to v1: https://patch.msgid.link/20260703-eliza_evk-v1-0-7624440bd76d@oss.qualcomm.com
>>
>> To: Bjorn Andersson <andersson@kernel.org>
>> To: Konrad Dybcio <konradybcio@kernel.org>
>> To: Rob Herring <robh@kernel.org>
>> To: Krzysztof Kozlowski <krzk+dt@kernel.org>
>> To: Conor Dooley <conor+dt@kernel.org>
>> Cc: linux-arm-msm@vger.kernel.org
>> Cc: devicetree@vger.kernel.org
>> Cc: linux-kernel@vger.kernel.org
>>
>> ---
>> Krishna Chaitanya Chundru (2):
>>       arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector
>>       arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch
>>
>>  arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 228 ++++++++++++++++++++++++++++++++
>>  arch/arm64/boot/dts/qcom/eliza.dtsi     |   2 +
>>  2 files changed, 230 insertions(+)
>> ---
>> base-commit: dc59e4fea9d83f03bad6bddf3fa2e52491777482
>> change-id: 20260629-eliza_evk-6f30686b161f
>> prerequisite-message-id: <20260708-eliza_dt-v2-1-e6281da26408@oss.qualcomm.com>
>> prerequisite-patch-id: 7654ff4f899ac0094a2e791e7f208998fcc7d5fa
>> prerequisite-patch-id: 9e10dfbe360941cdac0300aaf163149755952f9f
>> prerequisite-patch-id: fecce0170351baf00cbe8f6b302d1def4d99bbfc
>> prerequisite-patch-id: 97cd6cb495fdd198f6de7fbe45ef32e4a638ec9c
>> prerequisite-message-id: <20260630-dts-qcom-eliza-mtp-evk-add-pmics-v1-1-f4f320f7c88b@oss.qualcomm.com>
>> prerequisite-patch-id: f3615b5c1e2222a2491f862a7fba3994058ecc53
>>
>> Best regards,
>> --  
>> Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
>>

Re: [PATCH v2 1/2] arm64: dts: qcom: eliza-evk: Add PCIe0 with M.2 E key connector

[Manivannan Sadhasivam]

On Wed, Jul 08, 2026 at 11:47:16AM +0530, Krishna Chaitanya Chundru wrote:
> The Eliza EVK board features an M.2 E key connector connected to PCIe0.
> Enable the PCIe0 root port and its QMP PHY with the necessary RPMH
> regulator supplies. The M.2 slot's 3.3V supply rail is GPIO-controlled
> via a TCA9538 I/O expander on I2C4.
> 
> The M.2 E key slot hosts a WLAN card connected over PCIe and a Bluetooth
> device connected over UART. Model the connector using the
> pcie-m2-e-connector binding, wiring the PCIe root port and UART5 for
> the respective interfaces.
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>

Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>

- Mani

> ---
>  arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 116 ++++++++++++++++++++++++++++++++
>  arch/arm64/boot/dts/qcom/eliza.dtsi     |   1 +
>  2 files changed, 117 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
> index e47b24f8b827..6d76715ccffb 100644
> --- a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
> +++ b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
> @@ -11,6 +11,92 @@ aliases {
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> +
> +	vreg_pcie_m_3p3: regulator-3p3 {
> +		compatible = "regulator-fixed";
> +
> +		regulator-name = "vreg_3p3";
> +		regulator-min-microvolt = <3300000>;
> +		regulator-max-microvolt = <3300000>;
> +
> +		gpio = <&gpio_expander1 6 GPIO_ACTIVE_HIGH>;
> +		enable-active-high;
> +	};
> +
> +	connector-0 {
> +		compatible = "pcie-m2-e-connector";
> +		vpcie3v3-supply = <&vreg_pcie_m_3p3>;
> +		w-disable1-gpios = <&tlmm 35 GPIO_ACTIVE_LOW>;
> +		w-disable2-gpios = <&pm8550vs_g_gpios 4 GPIO_ACTIVE_HIGH>;
> +
> +		pinctrl-0 = <&m2_w_disable1>, <&m2_w_disable2>;
> +		pinctrl-names = "default";
> +
> +		ports {
> +			#address-cells = <1>;
> +			#size-cells = <0>;
> +
> +			port@0 {
> +				reg = <0>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				m2_e_pcie_ep: endpoint@0 {
> +					reg = <0>;
> +					remote-endpoint = <&pcieport0_ep>;
> +				};
> +			};
> +
> +			port@3 {
> +				reg = <3>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				m2_e_uart_ep: endpoint@0 {
> +					reg = <0>;
> +					remote-endpoint = <&uart5_ep>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&i2c4 {
> +	pinctrl-0 = <&qup_i2c4_data_clk>;
> +	pinctrl-names = "default";
> +
> +	clock-frequency = <400000>;
> +
> +	status = "okay";
> +
> +	gpio_expander1: gpio@3c {
> +		compatible = "ti,tca9538";
> +		#gpio-cells = <2>;
> +		gpio-controller;
> +		reg = <0x3c>;
> +	};
> +};
> +
> +&pcie0 {
> +	status = "okay";
> +};
> +
> +&pcie0_phy {
> +	vdda-phy-supply = <&vreg_l1k>;
> +	vdda-pll-supply = <&vreg_l3k>;
> +
> +	status = "okay";
> +};
> +
> +&pcie0port0 {
> +	wake-gpios = <&tlmm 114 GPIO_ACTIVE_LOW>;
> +	reset-gpios = <&tlmm 78 GPIO_ACTIVE_LOW>;
> +
> +	port {
> +		pcieport0_ep: endpoint {
> +			remote-endpoint = <&m2_e_pcie_ep>;
> +		};
> +	};
>  };
>  
>  &uart13 {
> @@ -18,3 +104,33 @@ &uart13 {
>  
>  	status = "okay";
>  };
> +
> +&uart5 {
> +	status = "okay";
> +
> +	port {
> +		uart5_ep: endpoint {
> +			remote-endpoint = <&m2_e_uart_ep>;
> +		};
> +	};
> +};
> +
> +&pm8550vs_g_gpios {
> +	m2_w_disable2: m2-w-disable2-state {
> +		pins = "gpio4";
> +		function = "normal";
> +		input-disable;
> +		output-enable;
> +		bias-disable;
> +		power-source = <2>;
> +	};
> +};
> +
> +&tlmm {
> +	m2_w_disable1: m2-w-disable1-state {
> +		pins = "gpio35";
> +		function = "gpio";
> +		drive-strength = <2>;
> +		bias-pull-up;
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/qcom/eliza.dtsi b/arch/arm64/boot/dts/qcom/eliza.dtsi
> index 7cfd242bc192..cce65e18f979 100644
> --- a/arch/arm64/boot/dts/qcom/eliza.dtsi
> +++ b/arch/arm64/boot/dts/qcom/eliza.dtsi
> @@ -1909,6 +1909,7 @@ opp-8000000-3 {
>  			};
>  
>  			pcie0port0: pcie@0 {
> +				compatible = "pciclass,0604";
>  				device_type = "pci";
>  				reg = <0x0 0x0 0x0 0x0 0x0>;
>  				bus-range = <0x01 0xff>;
> 
> -- 
> 2.34.1
> 

-- 
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Re: [PATCH v2 2/2] arm64: dts: qcom: eliza-evk: Add PCIe1 with TC9563 PCIe switch

[Manivannan Sadhasivam]

On Wed, Jul 08, 2026 at 11:47:17AM +0530, Krishna Chaitanya Chundru wrote:
> The Eliza EVK board connects PCIe1 (8GT/s x2) to a Toshiba TC9563
> PCIe switch. Enable PCIe1 and its QMP PHY nodes.
> 
> TC9563 uses I2C (at address 0x77 on I2C4) for its management interface.
> 
> Override the base iommu-map with the expanded set covering all the
> switch's downstream ports (0x1400-0x1408 SID range).
> 
> The TC9563 RESX# and PERST# are OR-ed internally to assert reset on the
> switch. Use TC9563 RESX# pin via a TLMM GPIO and skip wiring PERST#
> from the PCIe controller.
> 
> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@oss.qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/eliza-evk.dtsi | 112 ++++++++++++++++++++++++++++++++
>  arch/arm64/boot/dts/qcom/eliza.dtsi     |   1 +
>  2 files changed, 113 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
> index 6d76715ccffb..e099b7c8c371 100644
> --- a/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
> +++ b/arch/arm64/boot/dts/qcom/eliza-evk.dtsi
> @@ -12,6 +12,26 @@ chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
>  
> +	vreg_0p9: regulator-0v9 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "VREG_0P9";
> +
> +		regulator-min-microvolt = <900000>;
> +		regulator-max-microvolt = <900000>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +
> +	vreg_1p8: regulator-1v8 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "VREG_1P8";
> +
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +		regulator-always-on;
> +		regulator-boot-on;
> +	};
> +
>  	vreg_pcie_m_3p3: regulator-3p3 {
>  		compatible = "regulator-fixed";
>  
> @@ -99,6 +119,98 @@ pcieport0_ep: endpoint {
>  	};
>  };
>  
> +&pcie1 {
> +	iommu-map = <0x0 &apps_smmu 0x1400 0x1>,
> +		    <0x100 &apps_smmu 0x1401 0x1>,
> +		    <0x208 &apps_smmu 0x1402 0x1>,
> +		    <0x210 &apps_smmu 0x1403 0x1>,
> +		    <0x218 &apps_smmu 0x1404 0x1>,
> +		    <0x300 &apps_smmu 0x1405 0x1>,
> +		    <0x400 &apps_smmu 0x1406 0x1>,
> +		    <0x500 &apps_smmu 0x1407 0x1>,
> +		    <0x501 &apps_smmu 0x1408 0x1>;
> +
> +	status = "okay";
> +};
> +
> +&pcie1_phy {
> +	vdda-phy-supply = <&vreg_l1k>;
> +	vdda-pll-supply = <&vreg_l3k>;
> +
> +	status = "okay";
> +};
> +
> +&pcie1port0 {
> +	wake-gpios = <&tlmm 53 GPIO_ACTIVE_LOW>;

No reset-gpios?

- Mani

> +
> +	tc9563: pcie@0,0 {
> +		compatible = "pci1179,0623";
> +		reg = <0x10000 0x0 0x0 0x0 0x0>;
> +		#address-cells = <3>;
> +		#size-cells = <2>;
> +
> +		device_type = "pci";
> +		ranges;
> +		bus-range = <0x2 0xff>;
> +
> +		vddc-supply = <&vreg_0p9>;
> +		vdd18-supply = <&vreg_1p8>;
> +		vdd09-supply = <&vreg_0p9>;
> +		vddio1-supply = <&vreg_1p8>;
> +		vddio2-supply = <&vreg_1p8>;
> +		vddio18-supply = <&vreg_1p8>;
> +
> +		i2c-parent = <&i2c4 0x77>;
> +
> +		resx-gpios = <&tlmm 54 GPIO_ACTIVE_LOW>;
> +
> +		pcie@1,0 {
> +			reg = <0x20800 0x0 0x0 0x0 0x0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +
> +			device_type = "pci";
> +			ranges;
> +			bus-range = <0x3 0xff>;
> +		};
> +
> +		pcie@2,0 {
> +			reg = <0x21000 0x0 0x0 0x0 0x0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +
> +			device_type = "pci";
> +			ranges;
> +			bus-range = <0x4 0xff>;
> +		};
> +
> +		pcie@3,0 {
> +			reg = <0x21800 0x0 0x0 0x0 0x0>;
> +			#address-cells = <3>;
> +			#size-cells = <2>;
> +			device_type = "pci";
> +			ranges;
> +			bus-range = <0x5 0xff>;
> +
> +			pci@0,0 {
> +				reg = <0x50000 0x0 0x0 0x0 0x0>;
> +				#address-cells = <3>;
> +				#size-cells = <2>;
> +				device_type = "pci";
> +				ranges;
> +			};
> +
> +			pci@0,1 {
> +				reg = <0x50100 0x0 0x0 0x0 0x0>;
> +				#address-cells = <3>;
> +				#size-cells = <2>;
> +				device_type = "pci";
> +				ranges;
> +			};
> +		};
> +	};
> +};
> +
>  &uart13 {
>  	compatible = "qcom,geni-debug-uart";
>  
> diff --git a/arch/arm64/boot/dts/qcom/eliza.dtsi b/arch/arm64/boot/dts/qcom/eliza.dtsi
> index cce65e18f979..363cabc5f55c 100644
> --- a/arch/arm64/boot/dts/qcom/eliza.dtsi
> +++ b/arch/arm64/boot/dts/qcom/eliza.dtsi
> @@ -2102,6 +2102,7 @@ opp-16000000-3 {
>  
>  			};
>  			pcie1port0: pcie@0 {
> +				compatible = "pciclass,0604";
>  				device_type = "pci";
>  				reg = <0x0 0x0 0x0 0x0 0x0>;
>  				bus-range = <0x01 0xff>;
> 
> -- 
> 2.34.1
> 

-- 
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