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Date: Tue, 25 Jan 2022 13:46:00 -0600
From: nick.hawkins@....com
To: verdun@....com
Cc: nick.hawkins@....com, Rob Herring <robh+dt@...nel.org>,
Russell King <linux@...linux.org.uk>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Shawn Guo <shawnguo@...nel.org>,
Stanislav Jakubek <stano.jakubek@...il.com>,
Sam Ravnborg <sam@...nborg.org>,
Linus Walleij <linus.walleij@...aro.org>,
Hao Fang <fanghao11@...wei.com>, Arnd Bergmann <arnd@...db.de>,
"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Mark Rutland <mark.rutland@....com>,
Ard Biesheuvel <ardb@...nel.org>,
Anshuman Khandual <anshuman.khandual@....com>,
Lukas Bulwahn <lukas.bulwahn@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH] Adding architectural support for HPE's GXP BMC. This is the first of a series of patches to support HPE's BMC with Linux Kernel.
From: Nick Hawkins <nick.hawkins@....com>
Signed-off-by: Nick Hawkins <nick.hawkins@....com>
---
.../devicetree/bindings/vendor-prefixes.yaml | 2 +
MAINTAINERS | 8 +
arch/arm/Kconfig | 2 +
arch/arm/boot/dts/gxp.dts | 700 ++++++++++++++++++
arch/arm/configs/gxp_defconfig | 243 ++++++
arch/arm/mach-hpe/Kconfig | 20 +
arch/arm/mach-hpe/Makefile | 1 +
arch/arm/mach-hpe/gxp.c | 63 ++
8 files changed, 1039 insertions(+)
create mode 100644 arch/arm/boot/dts/gxp.dts
create mode 100644 arch/arm/configs/gxp_defconfig
create mode 100644 arch/arm/mach-hpe/Kconfig
create mode 100644 arch/arm/mach-hpe/Makefile
create mode 100644 arch/arm/mach-hpe/gxp.c
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 294093d45a23..e8b0ec874aed 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -515,6 +515,8 @@ patternProperties:
description: Jiangsu HopeRun Software Co., Ltd.
"^hp,.*":
description: Hewlett Packard
+ "^hpe,.*":
+ description: Hewlett Packard Enterprise
"^hsg,.*":
description: HannStar Display Co.
"^holtek,.*":
diff --git a/MAINTAINERS b/MAINTAINERS
index ea3e6c914384..007d99734dd1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8382,6 +8382,14 @@ L: linux-efi@...r.kernel.org
S: Maintained
F: block/partitions/efi.*
+GXP ARCHITECTURE
+M: Jean-Marie Verdun <verdun@....com>
+M: Nick Hawkins <nick.hawkins@....com>
+S: Maintained
+F: arch/arm/boot/dts/gxp.dts
+F: arch/arm/configs/gxp_defconfig
+F: arch/arm/mach-hpe/gxp.c
+
H8/300 ARCHITECTURE
M: Yoshinori Sato <ysato@...rs.sourceforge.jp>
L: uclinux-h8-devel@...ts.sourceforge.jp (moderated for non-subscribers)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fabe39169b12..d428d0d35889 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -708,6 +708,8 @@ source "arch/arm/mach-vt8500/Kconfig"
source "arch/arm/mach-zynq/Kconfig"
+source "arch/arm/mach-hpe/Kconfig"
+
# ARMv7-M architecture
config ARCH_LPC18XX
bool "NXP LPC18xx/LPC43xx"
diff --git a/arch/arm/boot/dts/gxp.dts b/arch/arm/boot/dts/gxp.dts
new file mode 100644
index 000000000000..7bd814ecaaee
--- /dev/null
+++ b/arch/arm/boot/dts/gxp.dts
@@ -0,0 +1,700 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for HPE GXP
+ */
+
+/dts-v1/;
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "HPE,GXP";
+ model = "GXP";
+
+ chosen {
+ bootargs = "earlyprintk console=ttyS0,115200 user_debug=31";
+ };
+
+ aliases {
+ };
+
+ memory@...00000 {
+ device_type = "memory";
+ reg = <0x40000000 0x20000000>;
+ };
+
+ ahb@...00000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ vic0: vic@...f0000 {
+ compatible = "arm,pl192-vic";
+ interrupt-controller;
+ reg = <0xceff0000 0x1000>;
+ #interrupt-cells = <1>;
+ };
+
+ vic1: vic@...00000 {
+ compatible = "arm,pl192-vic";
+ interrupt-controller;
+ reg = <0x80f00000 0x1000>;
+ #interrupt-cells = <1>;
+ };
+
+ timer0: timer@...00080 {
+ compatible = "hpe,gxp-timer";
+ reg = <0xc0000080 0x1>, <0xc0000094 0x01>, <0xc0000088 0x08>;
+ interrupts = <0>;
+ interrupt-parent = <&vic0>;
+ clock-frequency = <400000000>;
+ };
+
+ watchdog: watchdog@...00090 {
+ compatible = "hpe,gxp-wdt";
+ reg = <0xc0000090 0x02>, <0xc0000096 0x01>;
+ };
+
+ uartc: serial@...000f0 {
+ compatible = "ns16550a";
+ reg = <0xc00000f0 0x8>;
+ interrupts = <19>;
+ interrupt-parent = <&vic0>;
+ clock-frequency = <1846153>;
+ reg-shift = <0>;
+ };
+
+ uarta: serial@...000e0 {
+ compatible = "ns16550a";
+ reg = <0xc00000e0 0x8>;
+ interrupts = <17>;
+ interrupt-parent = <&vic0>;
+ clock-frequency = <1846153>;
+ reg-shift = <0>;
+ };
+
+ uartb: serial@...000e8 {
+ compatible = "ns16550a";
+ reg = <0xc00000e8 0x8>;
+ interrupts = <18>;
+ interrupt-parent = <&vic0>;
+ clock-frequency = <1846153>;
+ reg-shift = <0>;
+ };
+
+ vuart_a_cfg: vuarta_cfg@...c0230 {
+ compatible = "hpe,gxp-vuarta_cfg", "simple-mfd", "syscon";
+ reg = <0x80fc0230 0x100>;
+ reg-io-width = <1>;
+ };
+
+ vuart_a: vuart_a@...d0200 {
+ compatible = "hpe,gxp-vuart";
+ reg = <0x80fd0200 0x100>;
+ interrupts = <2>;
+ interrupt-parent = <&vic1>;
+ clock-frequency = <1846153>;
+ reg-shift = <0>;
+ status = "okay";
+ serial-line = <3>;
+ vuart_cfg = <&vuart_a_cfg>;
+ };
+
+ usb0: ehci@...e0000 {
+ compatible = "generic-ehci";
+ reg = <0xcefe0000 0x100>;
+ interrupts = <7>;
+ interrupt-parent = <&vic0>;
+ };
+
+ usb1: ohci@...e0100 {
+ compatible = "generic-ohci";
+ reg = <0xcefe0100 0x110>;
+ interrupts = <6>;
+ interrupt-parent = <&vic0>;
+ };
+
+ spifi0: spifi@...00200 {
+ compatible = "hpe,gxp-spifi";
+ reg = <0xc0000200 0x80>, <0xc000c000 0x100>, <0xf8000000 0x8000000>;
+ interrupts = <20>;
+ interrupt-parent = <&vic0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0>;
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ bmc@0 {
+ label = "bmc";
+ reg = <0x0 0x2000000>;
+ };
+ u-boot@0 {
+ label = "u-boot";
+ reg = <0x0 0x60000>;
+ };
+ u-boot-env@...00 {
+ label = "u-boot-env";
+ reg = <0x60000 0x20000>;
+ };
+ kernel@...00 {
+ label = "kernel";
+ reg = <0x80000 0x4c0000>;
+ };
+ rofs@...000 {
+ label = "rofs";
+ reg = <0x540000 0x1740000>;
+ };
+ rwfs@...0000 {
+ label = "rwfs";
+ reg = <0x1c80000 0x250000>;
+ };
+ section@...f000{
+ label = "section";
+ reg = <0x1ed0000 0x130000>;
+ };
+ };
+ };
+
+ flash@1 {
+ compatible = "jedec,spi-nor";
+ reg = <1>;
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ host-prime@0 {
+ label = "host-prime";
+ reg = <0x0 0x02000000>;
+ };
+ host-second@0 {
+ label = "host-second";
+ reg = <0x02000000 0x02000000>;
+ };
+ };
+ };
+ };
+
+ sram@...00000 {
+ compatible = "mtd-ram";
+ reg = <0xd0000000 0x80000>;
+ bank-width = <1>;
+ erase-size =<1>;
+ partition@0 {
+ label = "host-reserved";
+ reg = <0x0 0x10000>;
+ };
+ partition@...00 {
+ label = "nvram";
+ reg = <0x10000 0x70000>;
+ };
+ };
+
+ srom@...c0000 {
+ compatible = "hpe,gxp-srom", "simple-mfd", "syscon";
+ reg = <0x80fc0000 0x100>;
+ };
+
+ vrom@...00000 {
+ compatible = "mtd-ram";
+ bank-width = <4>;
+ reg = <0x58000000 0x4000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ partition@0 {
+ label = "vrom-prime";
+ reg = <0x0 0x2000000>;
+ };
+ partition@...0000 {
+ label = "vrom-second";
+ reg = <0x2000000 0x2000000>;
+ };
+ };
+
+ i2cg: i2cg@...000f8 {
+ compatible = "syscon";
+ reg = <0xc00000f8 0x08>;
+ };
+
+ i2c0: i2c@...02000 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002000 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c1: i2c@...02100 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002100 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c2: i2c@...02200 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002200 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ 24c02@50 {
+ compatible = "atmel,24c02";
+ pagesize = <8>;
+ reg = <0x50>;
+ };
+ };
+
+ i2c3: i2c@...02300 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002300 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c4: i2c@...02400 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002400 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c5: i2c@...02500 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002500 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ };
+
+ i2c6: i2c@...02600 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002600 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c7: i2c@...02700 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002700 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ psu1: psu@58 {
+ compatible = "hpe,gxp-psu";
+ reg = <0x58>;
+ };
+
+ psu2: psu@59 {
+ compatible = "hpe,gxp-psu";
+ reg = <0x59>;
+ };
+ };
+
+ i2c8: i2c@...02800 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002800 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c9: i2c@...02900 {
+ compatible = "hpe,gxp-i2c";
+ reg = <0xc0002900 0x70>;
+ interrupts = <9>;
+ interrupt-parent = <&vic0>;
+ i2cg-handle = <&i2cg>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2cmux@4 {
+ compatible = "i2c-mux-reg";
+ i2c-parent = <&i2c4>;
+ reg = <0xd1000074 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c4@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c4@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c4@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ i2cmux@6 {
+ compatible = "i2c-mux-reg";
+ i2c-parent = <&i2c6>;
+ reg = <0xd1000076 1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c6@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c6@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c6@3 {
+ reg = <3>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c6@4 {
+ reg = <4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c6@5 {
+ reg = <5>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ mdio0: mdio@...04080 {
+ compatible = "hpe,gxp-umac-mdio";
+ reg = <0xc0004080 0x10>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ext_phy0: ethernt-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ phy-mode = "sgmii";
+ reg = <0>;
+ };
+ };
+
+ mdio1: mdio@...05080 {
+ compatible = "hpe,gxp-umac-mdio";
+ reg = <0xc0005080 0x10>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ int_phy0: ethernt-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ phy-mode = "gmii";
+ reg = <0>;
+ };
+ int_phy1: ethernt-phy@1 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ phy-mode = "gmii";
+ reg = <1>;
+ };
+ };
+
+ umac0: umac@...04000 {
+ compatible = "hpe, gxp-umac";
+ reg = <0xc0004000 0x80>;
+ interrupts = <10>;
+ interrupt-parent = <&vic0>;
+ mac-address = [94 18 82 16 04 d8];
+ phy-handle = <&ext_phy0>;
+ int-phy-handle = <&int_phy0>;
+ };
+
+ umac1: umac@...05000 {
+ compatible = "hpe, gxp-umac";
+ use-ncsi;
+ reg = <0xc0005000 0x80>;
+ interrupts = <11>;
+ interrupt-parent = <&vic0>;
+ mac-address = [94 18 82 16 04 d9];
+ phy-handle = <&int_phy1>;
+ };
+
+ kcs_conf: kcs_conf@...c0430 {
+ compatible = "hpe,gxp-kcs-bmc-cfg", "simple-mfd", "syscon";
+ reg = <0x80fc0430 0x100>;
+ };
+
+ kcs_reg: kcs_reg@...fd0400 {
+ compatible = "hpe,gxp-kcs-bmc";
+ reg = <0x80fd0400 0x8>;
+ interrupts = <6>;
+ interrupt-parent = <&vic1>;
+ kcs_chan = <1>;
+ status = "okay";
+ kcs-bmc-cfg = <&kcs_conf>;
+ };
+
+ thumbnail: thumbnail@...00500 {
+ compatible = "hpe,gxp-thumbnail";
+ reg = <0xc0000500 0x20>;
+ bits-per-pixel = <32>;
+ width = <800>;
+ height = <600>;
+ };
+
+ xreg: xreg@...00000 {
+ compatible = "hpe,gxp-xreg", "simple-mfd", "syscon";
+ reg = <0xd1000000 0xFF>;
+ interrupts = <26>;
+ interrupt-parent = <&vic0>;
+ #gpio-cells = <2>;
+ gpio-line-names =
+ "", "", "", "", "", "", "POWER", "HEARTBEAT", "FAN1_INST", "FAN2_INST",
+ "FAN3_INST", "FAN4_INST", "FAN5_INST", "FAN6_INST", "FAN7_INST",
+ "FAN8_INST", "FAN9_INST", "FAN10_INST", "FAN11_INST", "FAN12_INST",
+ "FAN13_INST", "FAN14_INST", "FAN15_INST", "FAN16_INST", "FAN1_FAIL",
+ "FAN2_FAIL", "FAN3_FAIL", "FAN4_FAIL", "FAN5_FAIL", "FAN6_FAIL",
+ "FAN7_FAIL", "FAN8_FAIL", "FAN9_FAIL", "FAN10_FAIL", "FAN11_FAIL",
+ "FAN12_FAIL", "FAN13_FAIL", "FAN14_FAIL", "FAN15_FAIL", "FAN16_FAIL",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "IDENTIFY", "HEALTH_RED", "HEALTH_AMBER",
+ "POWER_BUTTON", "", "SIO_POWER_GOOD", "NMI_BUTTON", "RESET_BUTTON",
+ "SIO_S5", "SIO_ONCONTROL", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "";
+ };
+
+ fanctrl: fanctrl@...00c00 {
+ compatible = "hpe,gxp-fan-ctrl";
+ reg = <0xc1000c00 0x200>;
+ xreg_handle = <&xreg>;
+ fn2_handle = <&fn2>;
+ };
+
+ fn2: fn2@...00000 {
+ compatible = "hpe,gxp-fn2", "simple-mfd", "syscon";
+ reg = <0x80200000 0x100000>;
+ xreg_handle = <&xreg>;
+ interrupts = <0>;
+ interrupt-parent = <&vic1>;
+ #gpio-cells = <2>;
+ gpio-line-names =
+ "POWER_OUT", "PS_PWROK", "PCIERST", "POST_COMPLETE", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "";
+ chif {
+ compatible = "hpe,gxp-chif";
+ interrupts = <12>;
+ };
+ };
+
+ csm: csm@...00000 {
+ compatible = "hpe,gxp-csm", "simple-mfd", "syscon";
+ reg = <0x80000000 0x400>;
+ };
+
+ gpio: gpio@0 {
+ compatible = "hpe,gxp-gpio";
+ #gpio-cells = <2>;
+ csm_handle = <&csm>;
+ vuhc0_handle = <&vuhc0>;
+ gpio-line-names =
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "RESET_OUT", "NMI_OUT", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "",
+ "", "", "", "", "", "", "", "", "", "";
+ };
+
+ leds: leds {
+ compatible = "gpio-leds";
+
+ power {
+ gpios = <&xreg 6 0>;
+ default-state = "off";
+ };
+
+ heartbeat {
+ gpios = <&xreg 7 0>;
+ default-state = "off";
+ };
+
+ identify {
+ gpios = <&xreg 56 0>;
+ default-state = "off";
+ };
+
+ health_red {
+ gpios = <&xreg 57 0>;
+ default-state = "off";
+ };
+
+ health_amber {
+ gpios = <&xreg 58 0>;
+ default-state = "off";
+ };
+ };
+
+ xreg_kyes: xreg_keys {
+ compatible = "gpio-keys-polled";
+ poll-interval = <100>;
+
+ IdButton {
+ label = "ID Button";
+ linux,code = <200>;
+ gpios = <&xreg 60 1>;
+ };
+ };
+
+ vuhc: vuhc {
+ compatible = "gpio-keys-polled";
+ poll-interval = <100>;
+
+ PortOwner@0 {
+ label = "Port Owner";
+ linux,code = <200>;
+ gpios = <&gpio 250 1>;
+ };
+
+ PortOwner@1 {
+ label = "Port Owner";
+ linux,code = <201>;
+ gpios = <&gpio 251 1>;
+ };
+ };
+
+ vuhc0: vuhc@...00080 {
+ compatible = "syscon";
+ reg = <0x80400000 0x80>;
+ };
+
+ udcg: udcg@...00800 {
+ compatible = "syscon";
+ reg = <0x80400800 0x200>;
+ };
+
+ udc0: udc@...01000 {
+ compatible = "hpe, gxp-udc";
+ reg = <0x80401000 0x1000>;
+ interrupts = <13>;
+ interrupt-parent = <&vic1>;
+ vdevnum = <0>;
+ fepnum = <7>;
+ udcg-handle = <&udcg>;
+ };
+
+ udc1: udc@...02000 {
+ compatible = "hpe, gxp-udc";
+ reg = <0x80402000 0x1000>;
+ interrupts = <13>;
+ interrupt-parent = <&vic1>;
+ vdevnum = <1>;
+ fepnum = <7>;
+ udcg-handle = <&udcg>;
+ };
+
+ coretemp: coretemp@...00130 {
+ compatible = "hpe,gxp-coretemp";
+ reg = <0xc0000130 0x8>;
+ };
+
+ syspower: syspower {
+ compatible = "hpe,gxp-power";
+ psu_phandle = <&psu1>, <&psu2>;
+ };
+
+ peci: peci@...00400 {
+ compatible = "hpe,gxp-peci";
+ reg = <0x80000400 0x200>;
+ interrupts = <22>;
+ interrupt-parent = <&vic1>;
+ };
+ };
+
+ clocks {
+ osc: osc {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-output-names = "osc";
+ clock-frequency = <33333333>;
+ };
+
+ iopclk: iopclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clocks = <&osc>;
+ clock-out-put-names = "iopclk";
+ clock-frequency = <400000000>;
+ };
+
+ memclk: memclk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clocks = <&osc>;
+ clock-out-put-names = "memclk";
+ clock-frequency = <800000000>;
+ };
+ };
+};
diff --git a/arch/arm/configs/gxp_defconfig b/arch/arm/configs/gxp_defconfig
new file mode 100644
index 000000000000..f37c6630e06d
--- /dev/null
+++ b/arch/arm/configs/gxp_defconfig
@@ -0,0 +1,243 @@
+CONFIG_KERNEL_XZ=y
+CONFIG_DEFAULT_HOSTNAME="gxp"
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_LOG_BUF_SHIFT=18
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLAB=y
+CONFIG_ARCH_MULTI_V6=y
+CONFIG_ARCH_HPE=y
+CONFIG_ARCH_HPE_GXP=y
+CONFIG_SECCOMP=y
+# CONFIG_ATAGS is not set
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+# CONFIG_SUSPEND is not set
+CONFIG_JUMP_LABEL=y
+# CONFIG_STRICT_KERNEL_RWX is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_KSM=y
+CONFIG_CLEANCACHE=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=y
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=y
+CONFIG_XFRM_USER=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_INET=y
+CONFIG_VLAN_8021Q=y
+CONFIG_NETLINK_DIAG=y
+CONFIG_NET_NCSI=y
+# CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_MTD_PLATRAM=y
+CONFIG_MTD_SPI_NOR=y
+CONFIG_SPI_GXP_SPIFI=y
+CONFIG_BLK_DEV_NULL_BLK=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_NBD=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_EEPROM_AT24=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NET_VENDOR_ALACRITECH is not set
+# CONFIG_NET_VENDOR_AMAZON is not set
+# CONFIG_NET_VENDOR_AQUANTIA is not set
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_VENDOR_AURORA is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_CADENCE is not set
+# CONFIG_NET_VENDOR_CAVIUM is not set
+# CONFIG_NET_VENDOR_CIRRUS is not set
+# CONFIG_NET_VENDOR_CORTINA is not set
+# CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_FARADAY is not set
+# CONFIG_NET_VENDOR_GOOGLE is not set
+# CONFIG_NET_VENDOR_HISILICON is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MICROCHIP is not set
+# CONFIG_NET_VENDOR_MICROSEMI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NETRONOME is not set
+# CONFIG_NET_VENDOR_NI is not set
+# CONFIG_NET_VENDOR_QUALCOMM is not set
+# CONFIG_NET_VENDOR_RENESAS is not set
+# CONFIG_NET_VENDOR_ROCKER is not set
+# CONFIG_NET_VENDOR_SAMSUNG is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SOLARFLARE is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_SOCIONEXT is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SYNOPSYS is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_NET_VENDOR_XILINX is not set
+CONFIG_UMAC=y
+# CONFIG_USB_NET_DRIVERS is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_LEDS is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_KEYBOARD_ATKBD is not set
+CONFIG_KEYBOARD_GPIO=y
+CONFIG_KEYBOARD_GPIO_POLLED=y
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_SERIO_LIBPS2=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=6
+CONFIG_SERIAL_8250_RUNTIME_UARTS=6
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_8250_GXP_VUART=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_TTY_PRINTK=y
+CONFIG_IPMI_HANDLER=y
+CONFIG_IPMI_DEVICE_INTERFACE=y
+CONFIG_IPMI_SI=y
+CONFIG_IPMI_SSIF=y
+CONFIG_HPE_KCS_IPMI_BMC=y
+CONFIG_HW_RANDOM_TIMERIOMEM=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_GXP=y
+CONFIG_I2C_SLAVE=y
+CONFIG_I2C_SLAVE_EEPROM=y
+CONFIG_SPI=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_GXP=y
+CONFIG_SENSORS_EMC1403=y
+CONFIG_SENSORS_GXP_FAN_CTRL=y
+CONFIG_SENSORS_GXP_CORETEMP=y
+CONFIG_SENSORS_GXP_PSU=y
+CONFIG_SENSORS_GXP_POWER=y
+CONFIG_WATCHDOG=y
+CONFIG_GXP_WATCHDOG=y
+CONFIG_MFD_SYSCON=y
+CONFIG_FB=y
+CONFIG_FB_THUMBNAIL=y
+CONFIG_FB_SIMPLE=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_ROOT_HUB_TT=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GXP_UDC=y
+CONFIG_USB_CONFIGFS=y
+CONFIG_USB_CONFIGFS_SERIAL=y
+CONFIG_USB_CONFIGFS_ACM=y
+CONFIG_USB_CONFIGFS_OBEX=y
+CONFIG_USB_CONFIGFS_NCM=y
+CONFIG_USB_CONFIGFS_ECM=y
+CONFIG_USB_CONFIGFS_ECM_SUBSET=y
+CONFIG_USB_CONFIGFS_RNDIS=y
+CONFIG_USB_CONFIGFS_EEM=y
+CONFIG_USB_CONFIGFS_MASS_STORAGE=y
+CONFIG_USB_CONFIGFS_F_LB_SS=y
+CONFIG_USB_CONFIGFS_F_FS=y
+CONFIG_USB_CONFIGFS_F_HID=y
+CONFIG_USB_CONFIGFS_F_PRINTER=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_MTD=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_CPU=y
+CONFIG_LEDS_TRIGGER_GPIO=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_LEDS_TRIGGER_TRANSIENT=y
+CONFIG_LEDS_TRIGGER_PANIC=y
+# CONFIG_VIRTIO_MENU is not set
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_HPE_GXP_XREG=y
+CONFIG_HPE_GXP_FN2=y
+CONFIG_HPE_GXP_CSM=y
+CONFIG_HPE_GXP_SROM=y
+CONFIG_FANOTIFY=y
+CONFIG_OVERLAY_FS=y
+CONFIG_OVERLAY_FS_REDIRECT_DIR=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_JFFS2_FS=y
+# CONFIG_JFFS2_FS_WRITEBUFFER is not set
+CONFIG_JFFS2_SUMMARY=y
+CONFIG_JFFS2_FS_XATTR=y
+# CONFIG_JFFS2_FS_POSIX_ACL is not set
+# CONFIG_JFFS2_FS_SECURITY is not set
+CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_SQUASHFS_4K_DEVBLK_SIZE=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
+CONFIG_CRYPTO_CCM=y
+CONFIG_CRYPTO_GCM=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_ARC4=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_ZSTD=y
+CONFIG_CRYPTO_USER_API_HASH=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC16=y
+# CONFIG_XZ_DEC_ARM is not set
+# CONFIG_XZ_DEC_ARMTHUMB is not set
+CONFIG_DMA_API_DEBUG=y
+CONFIG_PRINTK_TIME=y
+CONFIG_BOOT_PRINTK_DELAY=y
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_STACK_TRACER=y
+CONFIG_SCHED_TRACER=y
+CONFIG_STRICT_DEVMEM=y
+CONFIG_DEBUG_USER=y
+CONFIG_DEBUG_LL=y
+CONFIG_DEBUG_LL_UART_8250=y
+CONFIG_DEBUG_UART_PHYS=0xC00000F0
+CONFIG_DEBUG_UART_VIRT=0xF00000F0
+CONFIG_DEBUG_UART_8250_SHIFT=0
+CONFIG_EARLY_PRINTK=y
+CONFIG_TEST_KSTRTOX=y
diff --git a/arch/arm/mach-hpe/Kconfig b/arch/arm/mach-hpe/Kconfig
new file mode 100644
index 000000000000..9b27f97c6536
--- /dev/null
+++ b/arch/arm/mach-hpe/Kconfig
@@ -0,0 +1,20 @@
+menuconfig ARCH_HPE
+ bool "HPE SoC support"
+ help
+ This enables support for HPE ARM based SoC chips
+if ARCH_HPE
+
+config ARCH_HPE_GXP
+ bool "HPE GXP SoC"
+ select ARM_VIC
+ select PINCTRL
+ select IRQ_DOMAIN
+ select GENERIC_IRQ_CHIP
+ select MULTI_IRQ_HANDLER
+ select SPARSE_IRQ
+ select CLKSRC_MMIO
+ depends on ARCH_MULTI_V7
+ help
+ Support for GXP SoCs
+
+endif
diff --git a/arch/arm/mach-hpe/Makefile b/arch/arm/mach-hpe/Makefile
new file mode 100644
index 000000000000..8b0a91234df4
--- /dev/null
+++ b/arch/arm/mach-hpe/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_ARCH_HPE_GXP) += gxp.o
diff --git a/arch/arm/mach-hpe/gxp.c b/arch/arm/mach-hpe/gxp.c
new file mode 100644
index 000000000000..b58f25fbae5a
--- /dev/null
+++ b/arch/arm/mach-hpe/gxp.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022 Hewlett-Packard Enterprise Development Company, L.P.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+
+#include <linux/init.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+
+#define IOP_REGS_PHYS_BASE 0xc0000000
+#define IOP_REGS_VIRT_BASE 0xf0000000
+#define IOP_REGS_SIZE (240*SZ_1M)
+
+#define IOP_EHCI_USBCMD 0x0efe0010
+
+static struct map_desc gxp_io_desc[] __initdata = {
+ {
+ .virtual = (unsigned long)IOP_REGS_VIRT_BASE,
+ .pfn = __phys_to_pfn(IOP_REGS_PHYS_BASE),
+ .length = IOP_REGS_SIZE,
+ .type = MT_DEVICE,
+ },
+};
+
+void __init gxp_map_io(void)
+{
+ iotable_init(gxp_io_desc, ARRAY_SIZE(gxp_io_desc));
+}
+
+static void __init gxp_dt_init(void)
+{
+ //reset EHCI host controller for clear start
+ __raw_writel(0x00080002,
+ (void __iomem *)(IOP_REGS_VIRT_BASE + IOP_EHCI_USBCMD));
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static void gxp_restart(enum reboot_mode mode, const char *cmd)
+{
+ pr_info("gpx restart");
+ __raw_writel(1, (void __iomem *) IOP_REGS_VIRT_BASE);
+}
+
+static const char * const gxp_board_dt_compat[] = {
+ "HPE,GXP",
+ NULL,
+};
+
+DT_MACHINE_START(GXP_DT, "HPE GXP")
+ .init_machine = gxp_dt_init,
+ .map_io = gxp_map_io,
+ .restart = gxp_restart,
+ .dt_compat = gxp_board_dt_compat,
+MACHINE_END
--
2.17.1
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