[PATCH v2 0/5] Icicle Kit with prod device and Discovery Kit support

[PATCH v2 0/5] Icicle Kit with prod device and Discovery Kit support

[Valentina Fernandez]

Hi all,

With the introduction of the Icicle Kit with the production device
(MPFS250T) to the market, it's necessary to distinguish it from the
engineering sample (-es) variant. This is because engineering samples
cannot write to flash from the MSS, as noted in the PolarFire SoC
FPGA ES errata.

This series adds a common board DTSI for the Icicle Kit, containing
hardware shared by both the engineering sample and production
versions, as well as a DTS for each Icicle Kit variant.

The last two patches add support for the PolarFire SoC Discovery Kit
board.

Changes since v1:
 - fix order of properties in mailbox nodes
 - drop redundant status property from ddrc_cache nodes
 - fix lowecase hex in reserved memory regions

Thanks,
Valentina

Valentina Fernandez (5):
  riscv: dts: microchip: add common board dtsi for icicle kit variants
  dt-bindings: riscv: microchip: document icicle kit with production
    device
  riscv: dts: microchip: add icicle kit with production device
  dt-bindings: riscv: microchip: document Discovery Kit
  riscv: dts: microchip: add a device tree for Discovery Kit

 .../devicetree/bindings/riscv/microchip.yaml  |  13 +
 arch/riscv/boot/dts/microchip/Makefile        |   2 +
 .../dts/microchip/mpfs-disco-kit-fabric.dtsi  |  58 ++++
 .../boot/dts/microchip/mpfs-disco-kit.dts     | 190 +++++++++++++
 .../dts/microchip/mpfs-icicle-kit-common.dtsi | 249 ++++++++++++++++++
 .../dts/microchip/mpfs-icicle-kit-fabric.dtsi |  23 +-
 .../dts/microchip/mpfs-icicle-kit-prod.dts    |  23 ++
 .../boot/dts/microchip/mpfs-icicle-kit.dts    | 244 +----------------
 8 files changed, 558 insertions(+), 244 deletions(-)
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-icicle-kit-prod.dts

-- 
2.34.1

[PATCH v2 1/5] riscv: dts: microchip: add common board dtsi for icicle kit variants

[Valentina Fernandez]

In preparation for supporting the Icicle Kit with production silicon,
add a common board dtsi for the icicle kit with hardware shared by both
the engineering sample and production versions.

Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
---
 .../dts/microchip/mpfs-icicle-kit-common.dtsi | 247 ++++++++++++++++++
 .../boot/dts/microchip/mpfs-icicle-kit.dts    | 241 +----------------
 2 files changed, 248 insertions(+), 240 deletions(-)
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi

diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi
new file mode 100644
index 000000000000..eafea3b69cd7
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Copyright (c) 2025 Microchip Technology Inc */
+
+/dts-v1/;
+
+#include "mpfs.dtsi"
+#include "mpfs-icicle-kit-fabric.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	aliases {
+		ethernet0 = &mac1;
+		serial0 = &mmuart0;
+		serial1 = &mmuart1;
+		serial2 = &mmuart2;
+		serial3 = &mmuart3;
+		serial4 = &mmuart4;
+	};
+
+	chosen {
+		stdout-path = "serial1:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-1 {
+			gpios = <&gpio2 16 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_RED>;
+			label = "led1";
+		};
+
+		led-2 {
+			gpios = <&gpio2 17 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_RED>;
+			label = "led2";
+		};
+
+		led-3 {
+			gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_AMBER>;
+			label = "led3";
+		};
+
+		led-4 {
+			gpios = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_AMBER>;
+			label = "led4";
+		};
+	};
+
+	ddrc_cache_lo: memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x40000000>;
+		status = "okay";
+	};
+
+	ddrc_cache_hi: memory@1040000000 {
+		device_type = "memory";
+		reg = <0x10 0x40000000 0x0 0x40000000>;
+		status = "okay";
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		hss_payload: region@BFC00000 {
+			reg = <0x0 0xBFC00000 0x0 0x400000>;
+			no-map;
+		};
+	};
+};
+
+&core_pwm0 {
+	status = "okay";
+};
+
+&gpio2 {
+	interrupts = <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>;
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+};
+
+&i2c1 {
+	status = "okay";
+
+	power-monitor@10 {
+		compatible = "microchip,pac1934";
+		reg = <0x10>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		channel@1 {
+			reg = <0x1>;
+			shunt-resistor-micro-ohms = <10000>;
+			label = "VDDREG";
+		};
+
+		channel@2 {
+			reg = <0x2>;
+			shunt-resistor-micro-ohms = <10000>;
+			label = "VDDA25";
+		};
+
+		channel@3 {
+			reg = <0x3>;
+			shunt-resistor-micro-ohms = <10000>;
+			label = "VDD25";
+		};
+
+		channel@4 {
+			reg = <0x4>;
+			shunt-resistor-micro-ohms = <10000>;
+			label = "VDDA_REG";
+		};
+	};
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&mac0 {
+	phy-mode = "sgmii";
+	phy-handle = <&phy0>;
+	status = "okay";
+};
+
+&mac1 {
+	phy-mode = "sgmii";
+	phy-handle = <&phy1>;
+	status = "okay";
+
+	phy1: ethernet-phy@9 {
+		reg = <9>;
+	};
+
+	phy0: ethernet-phy@8 {
+		reg = <8>;
+	};
+};
+
+&mbox {
+	status = "okay";
+};
+
+&mmc {
+	bus-width = <4>;
+	disable-wp;
+	cap-sd-highspeed;
+	cap-mmc-highspeed;
+	mmc-ddr-1_8v;
+	mmc-hs200-1_8v;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	status = "okay";
+};
+
+&mmuart1 {
+	status = "okay";
+};
+
+&mmuart2 {
+	status = "okay";
+};
+
+&mmuart3 {
+	status = "okay";
+};
+
+&mmuart4 {
+	status = "okay";
+};
+
+&pcie {
+	status = "okay";
+};
+
+&qspi {
+	status = "okay";
+};
+
+&refclk {
+	clock-frequency = <125000000>;
+};
+
+&refclk_ccc {
+	clock-frequency = <50000000>;
+};
+
+&rtc {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+};
+
+&spi1 {
+	status = "okay";
+};
+
+&syscontroller {
+	status = "okay";
+};
+
+&syscontroller_qspi {
+	/*
+	 * The flash *is* there, but Icicle kits that have engineering sample
+	 * silicon (write?) access to this flash to non-functional. The system
+	 * controller itself can actually access it, but the MSS cannot write
+	 * an image there. Instantiating a coreQSPI in the fabric & connecting
+	 * it to the flash instead should work though. Pre-production or later
+	 * silicon does not have this issue.
+	 */
+	status = "disabled";
+
+	sys_ctrl_flash: flash@0 { // MT25QL01GBBB8ESF-0SIT
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		spi-max-frequency = <20000000>;
+		spi-rx-bus-width = <1>;
+		reg = <0>;
+	};
+};
+
+&usb {
+	status = "okay";
+	dr_mode = "host";
+};
diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
index f80df225f72b..2cb08ed0946d 100644
--- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
@@ -3,249 +3,10 @@
 
 /dts-v1/;
 
-#include "mpfs.dtsi"
-#include "mpfs-icicle-kit-fabric.dtsi"
-#include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/leds/common.h>
+#include "mpfs-icicle-kit-common.dtsi"
 
 / {
 	model = "Microchip PolarFire-SoC Icicle Kit";
 	compatible = "microchip,mpfs-icicle-reference-rtlv2210", "microchip,mpfs-icicle-kit",
 		     "microchip,mpfs";
-
-	aliases {
-		ethernet0 = &mac1;
-		serial0 = &mmuart0;
-		serial1 = &mmuart1;
-		serial2 = &mmuart2;
-		serial3 = &mmuart3;
-		serial4 = &mmuart4;
-	};
-
-	chosen {
-		stdout-path = "serial1:115200n8";
-	};
-
-	leds {
-		compatible = "gpio-leds";
-
-		led-1 {
-			gpios = <&gpio2 16 GPIO_ACTIVE_HIGH>;
-			color = <LED_COLOR_ID_RED>;
-			label = "led1";
-		};
-
-		led-2 {
-			gpios = <&gpio2 17 GPIO_ACTIVE_HIGH>;
-			color = <LED_COLOR_ID_RED>;
-			label = "led2";
-		};
-
-		led-3 {
-			gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
-			color = <LED_COLOR_ID_AMBER>;
-			label = "led3";
-		};
-
-		led-4 {
-			gpios = <&gpio2 19 GPIO_ACTIVE_HIGH>;
-			color = <LED_COLOR_ID_AMBER>;
-			label = "led4";
-		};
-	};
-
-	ddrc_cache_lo: memory@80000000 {
-		device_type = "memory";
-		reg = <0x0 0x80000000 0x0 0x40000000>;
-		status = "okay";
-	};
-
-	ddrc_cache_hi: memory@1040000000 {
-		device_type = "memory";
-		reg = <0x10 0x40000000 0x0 0x40000000>;
-		status = "okay";
-	};
-
-	reserved-memory {
-		#address-cells = <2>;
-		#size-cells = <2>;
-		ranges;
-
-		hss_payload: region@BFC00000 {
-			reg = <0x0 0xBFC00000 0x0 0x400000>;
-			no-map;
-		};
-	};
-};
-
-&core_pwm0 {
-	status = "okay";
-};
-
-&gpio2 {
-	interrupts = <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>,
-		     <53>, <53>, <53>, <53>;
-	status = "okay";
-};
-
-&i2c0 {
-	status = "okay";
-};
-
-&i2c1 {
-	status = "okay";
-
-	power-monitor@10 {
-		compatible = "microchip,pac1934";
-		reg = <0x10>;
-
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		channel@1 {
-			reg = <0x1>;
-			shunt-resistor-micro-ohms = <10000>;
-			label = "VDDREG";
-		};
-
-		channel@2 {
-			reg = <0x2>;
-			shunt-resistor-micro-ohms = <10000>;
-			label = "VDDA25";
-		};
-
-		channel@3 {
-			reg = <0x3>;
-			shunt-resistor-micro-ohms = <10000>;
-			label = "VDD25";
-		};
-
-		channel@4 {
-			reg = <0x4>;
-			shunt-resistor-micro-ohms = <10000>;
-			label = "VDDA_REG";
-		};
-	};
-};
-
-&i2c2 {
-	status = "okay";
-};
-
-&mac0 {
-	phy-mode = "sgmii";
-	phy-handle = <&phy0>;
-	status = "okay";
-};
-
-&mac1 {
-	phy-mode = "sgmii";
-	phy-handle = <&phy1>;
-	status = "okay";
-
-	phy1: ethernet-phy@9 {
-		reg = <9>;
-	};
-
-	phy0: ethernet-phy@8 {
-		reg = <8>;
-	};
-};
-
-&mbox {
-	status = "okay";
-};
-
-&mmc {
-	bus-width = <4>;
-	disable-wp;
-	cap-sd-highspeed;
-	cap-mmc-highspeed;
-	mmc-ddr-1_8v;
-	mmc-hs200-1_8v;
-	sd-uhs-sdr12;
-	sd-uhs-sdr25;
-	sd-uhs-sdr50;
-	sd-uhs-sdr104;
-	status = "okay";
-};
-
-&mmuart1 {
-	status = "okay";
-};
-
-&mmuart2 {
-	status = "okay";
-};
-
-&mmuart3 {
-	status = "okay";
-};
-
-&mmuart4 {
-	status = "okay";
-};
-
-&pcie {
-	status = "okay";
-};
-
-&qspi {
-	status = "okay";
-};
-
-&refclk {
-	clock-frequency = <125000000>;
-};
-
-&refclk_ccc {
-	clock-frequency = <50000000>;
-};
-
-&rtc {
-	status = "okay";
-};
-
-&spi0 {
-	status = "okay";
-};
-
-&spi1 {
-	status = "okay";
-};
-
-&syscontroller {
-	status = "okay";
-};
-
-&syscontroller_qspi {
-	/*
-	 * The flash *is* there, but Icicle kits that have engineering sample
-	 * silicon (write?) access to this flash to non-functional. The system
-	 * controller itself can actually access it, but the MSS cannot write
-	 * an image there. Instantiating a coreQSPI in the fabric & connecting
-	 * it to the flash instead should work though. Pre-production or later
-	 * silicon does not have this issue.
-	 */
-	status = "disabled";
-
-	sys_ctrl_flash: flash@0 { // MT25QL01GBBB8ESF-0SIT
-		compatible = "jedec,spi-nor";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		spi-max-frequency = <20000000>;
-		spi-rx-bus-width = <1>;
-		reg = <0>;
-	};
-};
-
-&usb {
-	status = "okay";
-	dr_mode = "host";
 };
-- 
2.34.1

[PATCH v2 2/5] dt-bindings: riscv: microchip: document icicle kit with production device

[Valentina Fernandez]

With the introduction of the Icicle Kit using the production MPFS250T
device, it's necessary to distinguish it from the engineering sample
(-es) variant. Engineering samples cannot write to flash from the MSS,
as noted in the PolarFire SoC FPGA ES errata.

Add specific compatibles for the Icicle Kit with Production device
(MPFS250T) and Icicle Kit with Engineering Sample (MPFS250T_ES).

The icicle kit reference designs in the v2025.07 release include the
Mi-V IHC IP v2, used to send/receive data between clusters when
using Asymmetric Multiprocessing (AMP) mode.

In reference design releases prior to v2025.07, the MI-V IHC subsystem
was included as a proof of concept in the design prior to becoming an
IP available in the Libero catalog.

Among other improvements, the new Mi-V IHC IP v2 includes some
changes to the register map. For this reason, make use of a new
reference design compatible to denote that v2025.07 reference design
releases are not backwards compatible.

Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
---
 Documentation/devicetree/bindings/riscv/microchip.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/microchip.yaml b/Documentation/devicetree/bindings/riscv/microchip.yaml
index 78ce76ae1b6d..8ddc5c02973e 100644
--- a/Documentation/devicetree/bindings/riscv/microchip.yaml
+++ b/Documentation/devicetree/bindings/riscv/microchip.yaml
@@ -18,10 +18,18 @@ properties:
     const: '/'
   compatible:
     oneOf:
+      - items:
+          - const: microchip,mpfs-icicle-prod-reference-rtl-v2507
+          - const: microchip,mpfs-icicle-kit-prod
+          - const: microchip,mpfs-icicle-kit
+          - const: microchip,mpfs-prod
+          - const: microchip,mpfs
+
       - items:
           - enum:
               - microchip,mpfs-icicle-reference-rtlv2203
               - microchip,mpfs-icicle-reference-rtlv2210
+              - microchip,mpfs-icicle-es-reference-rtl-v2507
           - const: microchip,mpfs-icicle-kit
           - const: microchip,mpfs
 
-- 
2.34.1

[PATCH v2 3/5] riscv: dts: microchip: add icicle kit with production device

[Valentina Fernandez]

With the introduction of the Icicle Kit using the production MPFS250T
device, it's necessary to distinguish it from the engineering sample
(-es) variant. Engineering samples cannot write to flash from the MSS,
as noted in the PolarFire SoC FPGA ES errata.

Add a new device tree (mpfs-icicle-kit-prod.dts) for the production
board which includes the icicle kit common dtsi and enable the system
controller SPI flash, which is only accessible on production silicon.

Remove redundant board compatible from fabric dtsi and update board
compatibles for v2025.07 release, which includes Mi-V IHC v2 for AMP
cluster communication.

Fix formatting by using lowecase hex everywhere and remove reduntant
status properties from common dtsi.

Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
---
 arch/riscv/boot/dts/microchip/Makefile        |  1 +
 .../dts/microchip/mpfs-icicle-kit-common.dtsi | 10 ++++----
 .../dts/microchip/mpfs-icicle-kit-fabric.dtsi | 23 ++++++++++++++++---
 .../dts/microchip/mpfs-icicle-kit-prod.dts    | 23 +++++++++++++++++++
 .../boot/dts/microchip/mpfs-icicle-kit.dts    |  3 ++-
 5 files changed, 52 insertions(+), 8 deletions(-)
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-icicle-kit-prod.dts

diff --git a/arch/riscv/boot/dts/microchip/Makefile b/arch/riscv/boot/dts/microchip/Makefile
index f51aeeb9fd3b..1e2f4e41bf0d 100644
--- a/arch/riscv/boot/dts/microchip/Makefile
+++ b/arch/riscv/boot/dts/microchip/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-beaglev-fire.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-icicle-kit.dtb
+dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-icicle-kit-prod.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-m100pfsevp.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-polarberry.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-sev-kit.dtb
diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi
index eafea3b69cd7..e01a216e6c3a 100644
--- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-common.dtsi
@@ -53,13 +53,11 @@ led-4 {
 	ddrc_cache_lo: memory@80000000 {
 		device_type = "memory";
 		reg = <0x0 0x80000000 0x0 0x40000000>;
-		status = "okay";
 	};
 
 	ddrc_cache_hi: memory@1040000000 {
 		device_type = "memory";
 		reg = <0x10 0x40000000 0x0 0x40000000>;
-		status = "okay";
 	};
 
 	reserved-memory {
@@ -67,8 +65,8 @@ reserved-memory {
 		#size-cells = <2>;
 		ranges;
 
-		hss_payload: region@BFC00000 {
-			reg = <0x0 0xBFC00000 0x0 0x400000>;
+		hss_payload: region@bfc00000 {
+			reg = <0x0 0xbfc00000 0x0 0x400000>;
 			no-map;
 		};
 	};
@@ -134,6 +132,10 @@ &i2c2 {
 	status = "okay";
 };
 
+&ihc {
+	status = "okay";
+};
+
 &mac0 {
 	phy-mode = "sgmii";
 	phy-handle = <&phy0>;
diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi
index a6dda55a2d1d..e673b676fd1a 100644
--- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-fabric.dtsi
@@ -2,9 +2,6 @@
 /* Copyright (c) 2020-2021 Microchip Technology Inc */
 
 / {
-	compatible = "microchip,mpfs-icicle-reference-rtlv2210", "microchip,mpfs-icicle-kit",
-		     "microchip,mpfs";
-
 	core_pwm0: pwm@40000000 {
 		compatible = "microchip,corepwm-rtl-v4";
 		reg = <0x0 0x40000000 0x0 0xF0>;
@@ -26,6 +23,26 @@ i2c2: i2c@40000200 {
 		status = "disabled";
 	};
 
+	ihc: mailbox {
+		compatible = "microchip,sbi-ipc";
+		interrupt-parent = <&plic>;
+		interrupts = <180>, <179>, <178>, <177>;
+		interrupt-names = "hart-1", "hart-2", "hart-3", "hart-4";
+		#mbox-cells = <1>;
+		status = "disabled";
+	};
+
+	mailbox@50000000 {
+		compatible = "microchip,miv-ihc-rtl-v2";
+		reg = <0x0 0x50000000 0x0 0x1c000>;
+		interrupt-parent = <&plic>;
+		interrupts = <180>, <179>, <178>, <177>;
+		interrupt-names = "hart-1", "hart-2", "hart-3", "hart-4";
+		#mbox-cells = <1>;
+		microchip,ihc-chan-disabled-mask = /bits/ 16 <0>;
+		status = "disabled";
+	};
+
 	pcie: pcie@3000000000 {
 		compatible = "microchip,pcie-host-1.0";
 		#address-cells = <0x3>;
diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-prod.dts b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-prod.dts
new file mode 100644
index 000000000000..8afedece89d1
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit-prod.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Copyright (c) 2025 Microchip Technology Inc */
+
+/dts-v1/;
+
+#include "mpfs-icicle-kit-common.dtsi"
+
+/ {
+	model = "Microchip PolarFire-SoC Icicle Kit (Production Silicon)";
+	compatible = "microchip,mpfs-icicle-prod-reference-rtl-v2507",
+		     "microchip,mpfs-icicle-kit-prod",
+		     "microchip,mpfs-icicle-kit",
+		     "microchip,mpfs-prod",
+		     "microchip,mpfs";
+};
+
+&syscontroller {
+	microchip,bitstream-flash = <&sys_ctrl_flash>;
+};
+
+&syscontroller_qspi {
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
index 2cb08ed0946d..556aa9638282 100644
--- a/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
+++ b/arch/riscv/boot/dts/microchip/mpfs-icicle-kit.dts
@@ -7,6 +7,7 @@
 
 / {
 	model = "Microchip PolarFire-SoC Icicle Kit";
-	compatible = "microchip,mpfs-icicle-reference-rtlv2210", "microchip,mpfs-icicle-kit",
+	compatible = "microchip,mpfs-icicle-es-reference-rtl-v2507",
+		     "microchip,mpfs-icicle-kit",
 		     "microchip,mpfs";
 };
-- 
2.34.1

[PATCH v2 4/5] dt-bindings: riscv: microchip: document Discovery Kit

[Valentina Fernandez]

The Discovery Kit (MPFS-DISCO-KIT) is a development board featuring
a Microchip PolarFire SoC MPFS095T.

Link: https://www.microchip.com/en-us/development-tool/mpfs-disco-kit
Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
---
 Documentation/devicetree/bindings/riscv/microchip.yaml | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/microchip.yaml b/Documentation/devicetree/bindings/riscv/microchip.yaml
index 8ddc5c02973e..381d6eb6672e 100644
--- a/Documentation/devicetree/bindings/riscv/microchip.yaml
+++ b/Documentation/devicetree/bindings/riscv/microchip.yaml
@@ -33,6 +33,11 @@ properties:
           - const: microchip,mpfs-icicle-kit
           - const: microchip,mpfs
 
+      - items:
+          - const: microchip,mpfs-disco-kit-reference-rtl-v2507
+          - const: microchip,mpfs-disco-kit
+          - const: microchip,mpfs
+
       - items:
           - enum:
               - aldec,tysom-m-mpfs250t-rev2
-- 
2.34.1

[PATCH v2 5/5] riscv: dts: microchip: add a device tree for Discovery Kit

[Valentina Fernandez]

Add a minimal device tree for the Microchip PolarFire SoC Discovery Kit.
The Discovery Kit is a cost-optimized board based on PolarFire SoC
MPFS095T and features:

- 1 GB DDR4x16
- 1x Gigabit Ethernet
- 3x UARTs
- Raspberry Pi connector
- mikroBus connector
- microSD card connector

Link: https://www.microchip.com/en-us/development-tool/mpfs-disco-kit
Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
---
 arch/riscv/boot/dts/microchip/Makefile        |   1 +
 .../dts/microchip/mpfs-disco-kit-fabric.dtsi  |  58 ++++++
 .../boot/dts/microchip/mpfs-disco-kit.dts     | 190 ++++++++++++++++++
 3 files changed, 249 insertions(+)
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi
 create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts

diff --git a/arch/riscv/boot/dts/microchip/Makefile b/arch/riscv/boot/dts/microchip/Makefile
index 1e2f4e41bf0d..345ed7a48cc1 100644
--- a/arch/riscv/boot/dts/microchip/Makefile
+++ b/arch/riscv/boot/dts/microchip/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-beaglev-fire.dtb
+dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-disco-kit.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-icicle-kit.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-icicle-kit-prod.dtb
 dtb-$(CONFIG_ARCH_MICROCHIP_POLARFIRE) += mpfs-m100pfsevp.dtb
diff --git a/arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi b/arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi
new file mode 100644
index 000000000000..03900e634fe2
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Copyright (c) 2020-2025 Microchip Technology Inc */
+
+/ {
+	core_pwm0: pwm@40000000 {
+		compatible = "microchip,corepwm-rtl-v4";
+		reg = <0x0 0x40000000 0x0 0xF0>;
+		microchip,sync-update-mask = /bits/ 32 <0>;
+		#pwm-cells = <3>;
+		clocks = <&ccc_sw CLK_CCC_PLL0_OUT3>;
+		status = "disabled";
+	};
+
+	i2c2: i2c@40000200 {
+		compatible = "microchip,corei2c-rtl-v7";
+		reg = <0x0 0x40000200 0x0 0x100>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&ccc_sw CLK_CCC_PLL0_OUT3>;
+		interrupt-parent = <&plic>;
+		interrupts = <122>;
+		clock-frequency = <100000>;
+		status = "disabled";
+	};
+
+	ihc: mailbox {
+		compatible = "microchip,sbi-ipc";
+		interrupt-parent = <&plic>;
+		interrupts = <180>, <179>, <178>, <177>;
+		interrupt-names = "hart-1", "hart-2", "hart-3", "hart-4";
+		#mbox-cells = <1>;
+		status = "disabled";
+	};
+
+	mailbox@50000000 {
+		compatible = "microchip,miv-ihc-rtl-v2";
+		reg = <0x0 0x50000000 0x0 0x1c000>;
+		interrupt-parent = <&plic>;
+		interrupts = <180>, <179>, <178>, <177>;
+		interrupt-names = "hart-1", "hart-2", "hart-3", "hart-4";
+		#mbox-cells = <1>;
+		microchip,ihc-chan-disabled-mask = /bits/ 16 <0>;
+		status = "disabled";
+	};
+
+	refclk_ccc: cccrefclk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+	};
+};
+
+&ccc_sw {
+	clocks = <&refclk_ccc>, <&refclk_ccc>, <&refclk_ccc>, <&refclk_ccc>,
+		 <&refclk_ccc>, <&refclk_ccc>;
+	clock-names = "pll0_ref0", "pll0_ref1", "pll1_ref0", "pll1_ref1",
+		      "dll0_ref", "dll1_ref";
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts b/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
new file mode 100644
index 000000000000..c068b9bb5bfd
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Copyright (c) 2020-2025 Microchip Technology Inc */
+
+/dts-v1/;
+
+#include "mpfs.dtsi"
+#include "mpfs-disco-kit-fabric.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+
+/ {
+	model = "Microchip PolarFire-SoC Discovery Kit";
+	compatible = "microchip,mpfs-disco-kit-reference-rtl-v2507",
+		     "microchip,mpfs-disco-kit",
+		     "microchip,mpfs";
+
+	aliases {
+		ethernet0 = &mac0;
+		serial4 = &mmuart4;
+	};
+
+	chosen {
+		stdout-path = "serial4:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led-1 {
+			gpios = <&gpio2 17 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_AMBER>;
+			label = "led1";
+		};
+
+		led-2 {
+			gpios = <&gpio2 18 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_RED>;
+			label = "led2";
+		};
+
+		led-3 {
+			gpios = <&gpio2 19 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_AMBER>;
+			label = "led3";
+		};
+
+		led-4 {
+			gpios = <&gpio2 20 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_RED>;
+			label = "led4";
+		};
+
+		led-5 {
+			gpios = <&gpio2 21 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_AMBER>;
+			label = "led5";
+		};
+
+		led-6 {
+			gpios = <&gpio2 22 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_RED>;
+			label = "led6";
+		};
+
+		led-7 {
+			gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_AMBER>;
+			label = "led7";
+		};
+
+		led-8 {
+			gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
+			color = <LED_COLOR_ID_RED>;
+			label = "led8";
+		};
+	};
+
+	ddrc_cache_lo: memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0x0 0x40000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		hss_payload: region@bfc00000 {
+			reg = <0x0 0xbfc00000 0x0 0x400000>;
+			no-map;
+		};
+	};
+};
+
+&core_pwm0 {
+	status = "okay";
+};
+
+&gpio1 {
+	interrupts = <27>, <28>, <29>, <30>,
+		     <31>, <32>, <33>, <47>,
+		     <35>, <36>, <37>, <38>,
+		     <39>, <40>, <41>, <42>,
+		     <43>, <44>, <45>, <46>,
+		     <47>, <48>, <49>, <50>;
+	status = "okay";
+};
+
+&gpio2 {
+	interrupts = <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>,
+		     <53>, <53>, <53>, <53>;
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&ihc {
+	status = "okay";
+};
+
+&mac0 {
+	phy-mode = "sgmii";
+	phy-handle = <&phy0>;
+	status = "okay";
+
+	phy0: ethernet-phy@b {
+		reg = <0xb>;
+	};
+};
+
+&mbox {
+	status = "okay";
+};
+
+&mmc {
+	bus-width = <4>;
+	disable-wp;
+	cap-sd-highspeed;
+	cap-mmc-highspeed;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	no-1-8-v;
+	status = "okay";
+};
+
+&mmuart1 {
+	status = "okay";
+};
+
+&mmuart4 {
+	status = "okay";
+};
+
+&refclk {
+	clock-frequency = <125000000>;
+};
+
+&refclk_ccc {
+	clock-frequency = <50000000>;
+};
+
+&rtc {
+	status = "okay";
+};
+
+&spi0 {
+	status = "okay";
+};
+
+&spi1 {
+	status = "okay";
+};
+
+&syscontroller {
+	status = "okay";
+};
-- 
2.34.1

Re: [PATCH v2 5/5] riscv: dts: microchip: add a device tree for Discovery Kit

[Yao Zi]

On Tue, Sep 02, 2025 at 08:55:48AM +0100, Valentina Fernandez wrote:
> Add a minimal device tree for the Microchip PolarFire SoC Discovery Kit.
> The Discovery Kit is a cost-optimized board based on PolarFire SoC
> MPFS095T and features:
> 
> - 1 GB DDR4x16
> - 1x Gigabit Ethernet
> - 3x UARTs
> - Raspberry Pi connector
> - mikroBus connector
> - microSD card connector
> 
> Link: https://www.microchip.com/en-us/development-tool/mpfs-disco-kit
> Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
> ---
>  arch/riscv/boot/dts/microchip/Makefile        |   1 +
>  .../dts/microchip/mpfs-disco-kit-fabric.dtsi  |  58 ++++++
>  .../boot/dts/microchip/mpfs-disco-kit.dts     | 190 ++++++++++++++++++
>  3 files changed, 249 insertions(+)
>  create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi
>  create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts

...

> diff --git a/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts b/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
> new file mode 100644
> index 000000000000..c068b9bb5bfd
> --- /dev/null
> +++ b/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts

...

> +&mbox {
> +	status = "okay";
> +};
> +
> +&mmc {
> +	bus-width = <4>;
> +	disable-wp;
> +	cap-sd-highspeed;
> +	cap-mmc-highspeed;
> +	sd-uhs-sdr12;
> +	sd-uhs-sdr25;
> +	sd-uhs-sdr50;
> +	sd-uhs-sdr104;

I think sd-uhs-sdr104 implies sd-uhs-sdr{12,25,50}, thus the latter
three properties could be dropped.

> +	no-1-8-v;
> +	status = "okay";
> +};

Best regards,
Yao Zi

Re: [PATCH v2 5/5] riscv: dts: microchip: add a device tree for Discovery Kit

[Valentina.FernandezAlanis]

On 02/09/2025 09:32, Yao Zi wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On Tue, Sep 02, 2025 at 08:55:48AM +0100, Valentina Fernandez wrote:
>> Add a minimal device tree for the Microchip PolarFire SoC Discovery Kit.
>> The Discovery Kit is a cost-optimized board based on PolarFire SoC
>> MPFS095T and features:
>>
>> - 1 GB DDR4x16
>> - 1x Gigabit Ethernet
>> - 3x UARTs
>> - Raspberry Pi connector
>> - mikroBus connector
>> - microSD card connector
>>
>> Link: https://www.microchip.com/en-us/development-tool/mpfs-disco-kit
>> Signed-off-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
>> ---
>>   arch/riscv/boot/dts/microchip/Makefile        |   1 +
>>   .../dts/microchip/mpfs-disco-kit-fabric.dtsi  |  58 ++++++
>>   .../boot/dts/microchip/mpfs-disco-kit.dts     | 190 ++++++++++++++++++
>>   3 files changed, 249 insertions(+)
>>   create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit-fabric.dtsi
>>   create mode 100644 arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
> 
> ...
> 
>> diff --git a/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts b/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
>> new file mode 100644
>> index 000000000000..c068b9bb5bfd
>> --- /dev/null
>> +++ b/arch/riscv/boot/dts/microchip/mpfs-disco-kit.dts
> 
> ...
> 
>> +&mbox {
>> +     status = "okay";
>> +};
>> +
>> +&mmc {
>> +     bus-width = <4>;
>> +     disable-wp;
>> +     cap-sd-highspeed;
>> +     cap-mmc-highspeed;
>> +     sd-uhs-sdr12;
>> +     sd-uhs-sdr25;
>> +     sd-uhs-sdr50;
>> +     sd-uhs-sdr104;
> 
> I think sd-uhs-sdr104 implies sd-uhs-sdr{12,25,50}, thus the latter
> three properties could be dropped.
Even though the kernel treats sd-uhs-sdr104 as implying support for 
sdr12, sdr25, and sdr50, the binding has no such rules about implying 
other modes. For this reason, I thought it could be valid to explicitly 
list all supported modes to ensure accurate hw representation.>
>> +     no-1-8-v;
>> +     status = "okay";
>> +};
> 
> Best regards,
> Yao Zi