[PATCH v2 0/6] spacemit: k1-musepi-pro: add missing devices

[PATCH v2 0/6] spacemit: k1-musepi-pro: add missing devices

[Andre Heider]

Add the missing devices with their required regulators. The regulators are named after
their label in the vendor schematics[0].

v2:
- drop reg_vcc_5v0_sys as per "non-controllable" review comments on
  similar patches for other boards (kept the root reg_usb_vbus for though)
- add reg_vcc_4v0 instead as p1 vin?-supply, misread the schematics
- drop mpcie_vcc_3v3 and use pcie_vcc_3v3 for pcie2* too
  ("non-controllable" again)
- all of the above makes it consistent with other k1 boards

v1: https://lore.kernel.org/spacemit/20260505160623.1369347-1-a.heider@gmail.com/T/#t

root@OpenWrt:~# cat /sys/kernel/debug/regulator/regulator_summary
 regulator                      use open bypass  opmode voltage current     min     max
---------------------------------------------------------------------------------------
 regulator-dummy                  1    0      0 unknown     0mV     0mA     0mV     0mV
 USBVBUS                          5    4      0 unknown 12000mV     0mA 12000mV 12000mV
    PCIE_VCC3V3                   5    4      0 unknown  3300mV     0mA  3300mV  3300mV
       ca400000.pcie:pcie@0-vpcie3v3   1                                 0mA     0mV     0mV
       ca800000.pcie:pcie@0-vpcie3v3   1                                 0mA     0mV     0mV
       ca400000.pcie-vpcie3v3     1                                 0mA     0mV     0mV
       ca800000.pcie-vpcie3v3     1                                 0mA     0mV     0mV
    VCC4V0                        8   10      0 unknown  4000mV     0mA  4000mV  4000mV
       buck1                      1    0      0 unknown  1050mV     0mA   500mV  3450mV
       buck2                      1    0      0 unknown   900mV     0mA   500mV  3450mV
       buck3                      1    1      0 unknown  1800mV     0mA   500mV  1800mV
          2-0050-vcc              0                                 0mA     0mV     0mV
       buck4                      2    2      0 unknown  3300mV     0mA   500mV  3300mV
          spi0.0-vcc              1                                 0mA     0mV     0mV
          d4280000.mmc-vmmc       0                                 0mA  3300mV  3300mV
       buck5                      3    7      0 unknown  2100mV     0mA   500mV  3450mV
          dldo1                   0    0      0 unknown  1200mV     0mA   500mV  3400mV
          dldo2                   0    0      0 unknown   500mV     0mA   500mV  3400mV
          dldo3                   0    0      0 unknown   500mV     0mA   500mV  3400mV
          dldo4                   1    0      0 unknown  1800mV     0mA   500mV  3400mV
          dldo5                   0    0      0 unknown   500mV     0mA   500mV  3400mV
          dldo6                   1    0      0 unknown  1800mV     0mA   500mV  3400mV
          dldo7                   0    0      0 unknown   500mV     0mA   500mV  3400mV
       buck6                      1    0      0 unknown  1100mV     0mA   500mV  3450mV
       aldo1                      1    1      0 unknown  3300mV     0mA   500mV  3400mV
          d4280000.mmc-vqmmc      1                                 0mA     0mV     0mV
       aldo2                      0    0      0 unknown   500mV     0mA   500mV  3400mV
       aldo3                      0    0      0 unknown   500mV     0mA   500mV  3400mV
       aldo4                      0    0      0 unknown   500mV     0mA   500mV  3400mV
    5V_VBUS                       2    1      0 unknown  5000mV     0mA  5000mV  5000mV
       c0a00000.usb-vbus          1                                 0mA     0mV     0mV
    VCC5V0_HUB                    2    1      0 unknown  5000mV     0mA  5000mV  5000mV
       c0a00000.usb:hub@1-vdd     1                                 0mA     0mV     0mV

[0] https://github.com/spacemit-com/docs-product/blob/main/en/k1_muse_pi_pro/pi_pro_hw.md

Andre Heider (6):
  riscv: dts: spacemit: k1-musepi-pro: add PMIC and power infrastructure
  riscv: dts: spacemit: k1-musepi-pro: add 24c04 eeprom
  riscv: dts: spacemit: k1-musepi-pro: enable QSPI and add SPI NOR
  riscv: dts: spacemit: k1-musepi-pro: enable USB 3 ports
  riscv: dts: spacemit: k1-musepi-pro: enable PCIe ports
  riscv: dts: spacemit: k1-musepi-pro: set default console baud rate

 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 324 +++++++++++++++++-
 1 file changed, 323 insertions(+), 1 deletion(-)

-- 
2.53.0


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[PATCH v2 1/6] riscv: dts: spacemit: k1-musepi-pro: add PMIC and power infrastructure

[Andre Heider]

Enable i2c8 and add the connected SpacemiT P1 PMIC with its related regulators
for the board's power infrastructure and voltage regulation support.

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 144 ++++++++++++++++++
 1 file changed, 144 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 29e333b670cf0..88c35ad1ef2ae 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -17,6 +17,7 @@ / {
 	aliases {
 		ethernet0 = &eth0;
 		serial0 = &uart0;
+		i2c8 = &i2c8;
 	};
 
 	chosen {
@@ -33,6 +34,25 @@ led1 {
 			default-state = "on";
 		};
 	};
+
+	reg_usb_vbus: regulator-usb-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "USBVBUS";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_vcc_4v0: regulator-vcc-40v {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC4V0";
+		regulator-min-microvolt = <4000000>;
+		regulator-max-microvolt = <4000000>;
+		regulator-boot-on;
+		regulator-always-on;
+		vin-supply = <&reg_usb_vbus>;
+	};
 };
 
 &emmc {
@@ -72,6 +92,130 @@ &pdma {
 	status = "okay";
 };
 
+&i2c8 {
+	pinctrl-0 = <&i2c8_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	pmic@41 {
+		compatible = "spacemit,p1";
+		reg = <0x41>;
+		interrupts = <64>;
+		vin1-supply = <&reg_vcc_4v0>;
+		vin2-supply = <&reg_vcc_4v0>;
+		vin3-supply = <&reg_vcc_4v0>;
+		vin4-supply = <&reg_vcc_4v0>;
+		vin5-supply = <&reg_vcc_4v0>;
+		vin6-supply = <&reg_vcc_4v0>;
+		aldoin-supply = <&reg_vcc_4v0>;
+		dldoin1-supply = <&buck5>;
+		dldoin2-supply = <&buck5>;
+
+		regulators {
+			buck1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck3 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck4 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3300000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck5: buck5 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			buck6 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3450000>;
+				regulator-ramp-delay = <5000>;
+				regulator-always-on;
+			};
+
+			aldo1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+			};
+
+			aldo2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			aldo3 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			aldo4 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo1 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-boot-on;
+			};
+
+			dldo2 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo3 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo4 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-always-on;
+			};
+
+			dldo5 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+
+			dldo6 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+				regulator-always-on;
+			};
+
+			dldo7 {
+				regulator-min-microvolt = <500000>;
+				regulator-max-microvolt = <3400000>;
+			};
+		};
+	};
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	pinctrl-names = "default";
-- 
2.53.0


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[PATCH v2 2/6] riscv: dts: spacemit: k1-musepi-pro: add 24c04 eeprom

[Andre Heider]

Enable i2c2 and add the connected 24c04 EEPROM.

It contains an ONIE TLV table:
=> tlv_eeprom
TLV: 0
[  12.162] TlvInfo Header:
[  12.162]    Id String:    TlvInfo
[  12.165]    Version:      1
[  12.168]    Total Length: 58
[  12.171] TLV Name             Code Len Value
[  12.175] -------------------- ---- --- -----
[  12.179] Product Name         0x21  16 k1-x_MUSE-Pi-Pro
[  12.184] Serial Number        0x23  17 BPMIMXXXXXXXXXXXX
[  12.189] Unknown              0x41   1  0x02
[  12.194] Base MAC Address     0x24   6 FE:FE:FE:XX:XX:XX
[  12.199] MAC Addresses        0x2A   2 2
[  12.203] CRC-32               0xFE   4 0x395ECD34
[  12.207] Checksum is valid.

(With 0x41 as TLV_CODE_DDR_CSNUM)

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 88c35ad1ef2ae..79415d760f162 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -17,6 +17,7 @@ / {
 	aliases {
 		ethernet0 = &eth0;
 		serial0 = &uart0;
+		i2c2 = &i2c2;
 		i2c8 = &i2c8;
 	};
 
@@ -92,6 +93,38 @@ &pdma {
 	status = "okay";
 };
 
+&i2c2 {
+	pinctrl-0 = <&i2c2_0_cfg>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c02";
+		reg = <0x50>;
+		vcc-supply = <&buck3_1v8>; /* EEPROM_VCC1V8 */
+		pagesize = <8>;
+		read-only;
+		size = <256>;
+
+		nvmem-layout {
+			compatible = "onie,tlv-layout";
+
+			product-name {
+			};
+
+			serial-number {
+			};
+
+			mac-address {
+				#nvmem-cell-cells = <1>;
+			};
+
+			num-macs {
+			};
+		};
+	};
+};
+
 &i2c8 {
 	pinctrl-0 = <&i2c8_cfg>;
 	pinctrl-names = "default";
@@ -126,7 +159,7 @@ buck2 {
 				regulator-always-on;
 			};
 
-			buck3 {
+			buck3_1v8: buck3 {
 				regulator-min-microvolt = <500000>;
 				regulator-max-microvolt = <1800000>;
 				regulator-ramp-delay = <5000>;
-- 
2.53.0


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[PATCH v2 3/6] riscv: dts: spacemit: k1-musepi-pro: enable QSPI and add SPI NOR

[Andre Heider]

Add the QSPI controller node and describe the attached SPI NOR flash
(Winbond W25Q64FWSSAQ).

Add a corresponding vendor flash partition layout.

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 43 ++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 79415d760f162..7ebace0e46edb 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -166,7 +166,7 @@ buck3_1v8: buck3 {
 				regulator-always-on;
 			};
 
-			buck4 {
+			buck4_3v3: buck4 {
 				regulator-min-microvolt = <500000>;
 				regulator-max-microvolt = <3300000>;
 				regulator-ramp-delay = <5000>;
@@ -249,6 +249,47 @@ dldo7 {
 	};
 };
 
+&qspi {
+	pinctrl-names = "default";
+	pinctrl-0 = <&qspi_cfg>;
+	status = "okay";
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <26500000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <4>;
+		vcc-supply = <&buck4_3v3>; /* QSPI_VCC1833 */
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			bootinfo@0 {
+				reg = <0x0 0x10000>;
+			};
+			private@10000 {
+				reg = <0x10000 0x10000>;
+			};
+			fsbl@20000 {
+				reg = <0x20000 0x40000>;
+			};
+			env@60000 {
+				reg = <0x60000 0x10000>;
+			};
+			opensbi@70000 {
+				reg = <0x70000 0x30000>;
+			};
+			uboot@a00000 {
+				reg = <0xa0000 0x760000>;
+			};
+		};
+	};
+};
+
 &uart0 {
 	pinctrl-0 = <&uart0_2_cfg>;
 	pinctrl-names = "default";
-- 
2.53.0


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[PATCH v2 4/6] riscv: dts: spacemit: k1-musepi-pro: enable USB 3 ports

[Andre Heider]

Enable the DWC3 USB 3.0 controller, its associated combo_phy (USB 3 PHY)
and usbphy2 (USB 2 PHY) on the MusePi Pro board.

The board uses a VLI VL817 hub, providing four ports.

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 54 +++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 7ebace0e46edb..9c90c2817ecb7 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -54,6 +54,28 @@ reg_vcc_4v0: regulator-vcc-40v {
 		regulator-always-on;
 		vin-supply = <&reg_usb_vbus>;
 	};
+
+	reg_5v_vbus: regulator-5v-vbus {
+		compatible = "regulator-fixed";
+		regulator-name = "5V_VBUS";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		vin-supply = <&reg_usb_vbus>;
+		gpio = <&gpio K1_GPIO(79) GPIO_ACTIVE_HIGH>; /* USB3_PWREN */
+		enable-active-high;
+	};
+
+	reg_vcc5v_hub: regulator-vcc5v-hub {
+		compatible = "regulator-fixed";
+		regulator-name = "VCC5V0_HUB";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+		vin-supply = <&reg_usb_vbus>;
+		gpio = <&gpio K1_GPIO(127) GPIO_ACTIVE_HIGH>; /* HUB_PWREN */
+		enable-active-high;
+	};
 };
 
 &emmc {
@@ -66,6 +88,10 @@ &emmc {
 	status = "okay";
 };
 
+&combo_phy {
+	status = "okay";
+};
+
 &eth0 {
 	phy-handle = <&rgmii0>;
 	phy-mode = "rgmii-id";
@@ -295,3 +321,31 @@ &uart0 {
 	pinctrl-names = "default";
 	status = "okay";
 };
+
+&usbphy2 {
+	status = "okay";
+};
+
+&usb_dwc3 {
+	dr_mode = "host";
+	#address-cells = <1>;
+	#size-cells = <0>;
+	vbus-supply = <&reg_5v_vbus>;
+	status = "okay";
+
+	hub_2_0: hub@1 {
+		compatible = "usb2109,2817";
+		reg = <0x1>;
+		vdd-supply = <&reg_vcc5v_hub>;
+		peer-hub = <&hub_3_0>;
+		reset-gpios = <&gpio K1_GPIO(123) GPIO_ACTIVE_LOW>; /* HUB_RST */
+	};
+
+	hub_3_0: hub@2 {
+		compatible = "usb2109,817";
+		reg = <0x2>;
+		vdd-supply = <&reg_vcc5v_hub>;
+		peer-hub = <&hub_2_0>;
+		reset-gpios = <&gpio K1_GPIO(123) GPIO_ACTIVE_LOW>; /* HUB_RST */
+	};
+};
-- 
2.53.0


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[PATCH v2 5/6] riscv: dts: spacemit: k1-musepi-pro: enable PCIe ports

[Andre Heider]

Enable the two PCIe controller along with and their associated PHYs. They
are routed to the M.2 M-key connector and to the PCIe slot.

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 .../riscv/boot/dts/spacemit/k1-musepi-pro.dts | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 9c90c2817ecb7..2d3e30f0bd806 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -36,6 +36,24 @@ led1 {
 		};
 	};
 
+	pcie_vcc_3v3: regulator-pcie-vcc3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "PCIE_VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		vin-supply = <&reg_usb_vbus>;
+	};
+
+	mpcie_vcc_3v3: regulator-mpcie-vcc3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "MPCIE_VCC3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		vin-supply = <&reg_usb_vbus>;
+	};
+
 	reg_usb_vbus: regulator-usb-vbus {
 		compatible = "regulator-fixed";
 		regulator-name = "USBVBUS";
@@ -275,6 +293,38 @@ dldo7 {
 	};
 };
 
+&pcie1_phy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie1_3_cfg>;
+	status = "okay";
+};
+
+&pcie1_port {
+	phys = <&pcie1_phy>;
+	vpcie3v3-supply = <&pcie_vcc_3v3>;
+};
+
+&pcie1 {
+	vpcie3v3-supply = <&pcie_vcc_3v3>;
+	status = "okay";
+};
+
+&pcie2_phy {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pcie2_4_cfg>;
+	status = "okay";
+};
+
+&pcie2_port {
+	phys = <&pcie2_phy>;
+	vpcie3v3-supply = <&mpcie_vcc_3v3>;
+};
+
+&pcie2 {
+	vpcie3v3-supply = <&mpcie_vcc_3v3>;
+	status = "okay";
+};
+
 &qspi {
 	pinctrl-names = "default";
 	pinctrl-0 = <&qspi_cfg>;
-- 
2.53.0


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[PATCH v2 6/6] riscv: dts: spacemit: k1-musepi-pro: set default console baud rate

[Andre Heider]

Allow serial output with the same uboot/opensbi settings so the
console works without providing a cmdline.

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
index 2d3e30f0bd806..c8bf776511c94 100644
--- a/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-musepi-pro.dts
@@ -22,7 +22,7 @@ aliases {
 	};
 
 	chosen {
-		stdout-path = "serial0";
+		stdout-path = "serial0:115200n8";
 	};
 
 	leds {
-- 
2.53.0


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