On Mon, Dec 11, 2023 at 07:17:39PM +0200, Elad Nachman wrote:
> From: Elad Nachman <enachman@marvell.com>
>
> Add support for CN9130 and CN9131 COM Express Type 7 CPU
> module boards by Marvell.
> Define these COM Express CPU modules as dtsi and
> provide a dtsi file for a carrier board (Marvell AC5X RD
> COM Express type 7 carrier board).
> This Carrier board only utilizes the PCIe link, hence no
> special device / driver support is provided by this dtsi file.
> Finally, provide a dts file for the com express carrier and
> CPU module combination.
>
> These COM Express boards differ from the existing CN913x DB
> boards by the type of ethernet connection (RGMII),
> the type of voltage regulators (not i2c expander based)
> and the USB phy (not UTMI based).
> Note - PHY + RGMII connector is OOB on CPU module.
> CN9131 COM Express board is basically CN9130 COM Express board
> with an additional CP115 I/O co-processor, which in this case
> provides an additional USB host controller on the board.
>
> Signed-off-by: Elad Nachman <enachman@marvell.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
@@ -26,4 +26,5 @@ dtb-$(CONFIG_ARCH_MVEBU) += cn9132-db.dtb
dtb-$(CONFIG_ARCH_MVEBU) += cn9132-db-B.dtb
dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-A.dtb
dtb-$(CONFIG_ARCH_MVEBU) += cn9130-crb-B.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += ac5x-rd-carrier-cn9131.dtb
dtb-$(CONFIG_ARCH_MVEBU) += ac5-98dx35xx-rd.dtb
new file mode 100644
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2023 Marvell International Ltd.
+ *
+ * Device tree for the AC5X RD Type 7 Com Express carrier board,
+ * Utilizing the CN913x COM Express CPU module board.
+ * This specific carrier board in this mode of operation (external)
+ * only maintains a PCIe link with the CPU module,
+ * which does not require any special DTS definitions.
+ *
+ * AC5X RD works here in external mode (switch selectable at the back of the
+ * board), and connect via an external cable a kit
+ * which would allow it to use an external CN9131 CPU COM Express module,
+ * mounted on top of an interposer kit.
+ *
+ * So in this case, once the switch is set to external mode as explained above,
+ * the AC5X RD becomes part of the carrier solution.
+ *
+ * When the board boots in the external CPU mode, the internal CPU is disabled,
+ * and only the switch portion of the SOC acts as a PCIe end-point, Hence there
+ * is no need to describe this internal (disabled CPU) in the device tree.
+ *
+ * There is no CPU booting in this mode on the carrier, only on the
+ * CN9131 COM Express CPU module.
+ * What runs the Linux is the CN9131 on the COM Express CPU module,
+ * And it accesses the switch end-point on the AC5X RD portion of the carrier
+ * via PCIe.
+ */
+
+#include "cn9131-db-comexpress.dtsi"
+#include "ac5x-rd-carrier.dtsi"
+
+/ {
+ model = "Marvell Armada AC5X RD COM EXPRESS type 7 carrier board with CN9131 CPU module";
+ compatible = "marvell,cn9131-ac5x-carrier", "marvell,rd-ac5x-carrier",
+ "marvell,cn9131-cpu-module", "marvell,cn9131",
+ "marvell,armada-ap807-quad", "marvell,armada-ap807";
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x2 0x00000000>;
+ };
+
+};
new file mode 100644
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2023 Marvell International Ltd.
+ *
+ * Device tree for the AC5X RD Type 7 Com Express carrier board,
+ * This specific board in external mode (see below) only maintains
+ * a PCIe link with the COM Express CPU module, which does not
+ * require any special DTS definitions.
+ *
+ * AC5X RD can either work as you would expect, as a complete standalone
+ * box using the internal CPU, or you can move the switch on the back of
+ * the box to "external" mode, and connect via an external cable a kit
+ * which would allow it to use an external CPU COM Express module,
+ * mounted on top of an interposer kit.
+ *
+ * So in this case, once the switch is set to external mode as explained above,
+ * the AC5X RD becomes part of the carrier solution.
+ * This is a development/reference solution, not a full commercial solution,
+ * hence it was designed with the flexibility to be configured in different
+ * modes of operation.
+ *
+ * When the board boots in the external CPU mode, the internal CPU is disabled,
+ * and only the switch portion of the SOC acts as a PCIe end-point, Hence there
+ * is no need to describe this internal (disabled CPU) in the device tree.
+ *
+ * There is no CPU booting in this mode on the carrier,
+ * only on the COM Express CPU module.
+ */
+
+/ {
+ model = "Marvell Armada AC5X RD COM EXPRESS type 7 carrier board";
+ compatible = "marvell,rd-ac5x-carrier";
+
+};
new file mode 100644
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2023 Marvell International Ltd.
+ *
+ * Device tree for the CN9130-DB Com Express CPU module board.
+ */
+
+#include "cn9130-db.dtsi"
+
+/ {
+ model = "Marvell Armada CN9130-DB COM EXPRESS type 7 CPU module board";
+ compatible = "marvell,cn9130-cpu-module", "marvell,cn9130",
+ "marvell,armada-ap807-quad", "marvell,armada-ap807";
+
+};
+
+&ap0_reg_sd_vccq {
+ regulator-max-microvolt = <1800000>;
+ states = <1800000 0x1 1800000 0x0>;
+ /delete-property/ gpios;
+};
+
+&cp0_reg_usb3_vbus0 {
+ /delete-property/ gpio;
+};
+
+&cp0_reg_usb3_vbus1 {
+ /delete-property/ gpio;
+};
+
+&cp0_reg_sd_vcc {
+ status = "disabled";
+};
+
+&cp0_reg_sd_vccq {
+ status = "disabled";
+};
+
+&cp0_sdhci0 {
+ status = "disabled";
+};
+
+&cp0_eth0 {
+ status = "disabled";
+};
+
+&cp0_eth1 {
+ status = "okay";
+ phy = <&phy0>;
+ phy-mode = "rgmii-id";
+};
+
+&cp0_eth2 {
+ status = "disabled";
+};
+
+&cp0_mdio {
+ status = "okay";
+ pinctrl-0 = <&cp0_ge_mdio_pins>;
+ phy0: ethernet-phy@0 {
+ status = "okay";
+ };
+};
+
+&cp0_syscon0 {
+ cp0_pinctrl: pinctrl {
+ compatible = "marvell,cp115-standalone-pinctrl";
+
+ cp0_ge_mdio_pins: ge-mdio-pins {
+ marvell,pins = "mpp40", "mpp41";
+ marvell,function = "ge";
+ };
+ };
+};
+
+&cp0_sdhci0 {
+ status = "disabled";
+};
+
+&cp0_spi1 {
+ status = "okay";
+};
+
+&cp0_usb3_0 {
+ status = "okay";
+ usb-phy = <&cp0_usb3_0_phy0>;
+ phy-names = "usb";
+ /delete-property/ phys;
+};
+
+&cp0_usb3_1 {
+ status = "okay";
+ usb-phy = <&cp0_usb3_0_phy1>;
+ phy-names = "usb";
+ /delete-property/ phys;
+};
new file mode 100644
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2023 Marvell International Ltd.
+ *
+ * Device tree for the CN9131-DB Com Express CPU module board.
+ */
+
+#include "cn9131-db.dtsi"
+
+/ {
+ model = "Marvell Armada CN9131-DB COM EXPRESS type 7 CPU module board";
+ compatible = "marvell,cn9131-cpu-module", "marvell,cn9131", "marvell,cn9130",
+ "marvell,armada-ap807-quad", "marvell,armada-ap807";
+
+};
+
+&ap0_reg_sd_vccq {
+ regulator-max-microvolt = <1800000>;
+ states = <1800000 0x1 1800000 0x0>;
+ /delete-property/ gpios;
+};
+
+&cp0_reg_usb3_vbus0 {
+ /delete-property/ gpio;
+};
+
+&cp0_reg_usb3_vbus1 {
+ /delete-property/ gpio;
+};
+
+&cp1_reg_usb3_vbus0 {
+ /delete-property/ gpio;
+};
+
+&cp0_reg_sd_vcc {
+ status = "disabled";
+};
+
+&cp0_reg_sd_vccq {
+ status = "disabled";
+};
+
+&cp0_sdhci0 {
+ status = "disabled";
+};
+
+&cp0_eth0 {
+ status = "disabled";
+};
+
+&cp0_eth1 {
+ status = "okay";
+ phy = <&phy0>;
+ phy-mode = "rgmii-id";
+};
+
+&cp0_eth2 {
+ status = "disabled";
+};
+
+&cp0_mdio {
+ status = "okay";
+ pinctrl-0 = <&cp0_ge_mdio_pins>;
+ phy0: ethernet-phy@0 {
+ status = "okay";
+ };
+};
+
+&cp0_syscon0 {
+ cp0_pinctrl: pinctrl {
+ compatible = "marvell,cp115-standalone-pinctrl";
+
+ cp0_ge_mdio_pins: ge-mdio-pins {
+ marvell,pins = "mpp40", "mpp41";
+ marvell,function = "ge";
+ };
+ };
+};
+
+&cp0_sdhci0 {
+ status = "disabled";
+};
+
+&cp0_spi1 {
+ status = "okay";
+};
+
+&cp0_usb3_0 {
+ status = "okay";
+ usb-phy = <&cp0_usb3_0_phy0>;
+ phy-names = "usb";
+ /delete-property/ phys;
+};
+
+&cp0_usb3_1 {
+ status = "okay";
+ usb-phy = <&cp0_usb3_0_phy1>;
+ phy-names = "usb";
+ /delete-property/ phys;
+};
+
+&cp1_usb3_1 {
+ status = "okay";
+ usb-phy = <&cp1_usb3_0_phy0>;
+ /* Generic PHY, providing serdes lanes */
+ phys = <&cp1_comphy3 1>;
+ phy-names = "usb";
+};