diff --git a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
index d0a38ba..936aa10 100644
--- a/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
+++ b/Documentation/devicetree/bindings/mfd/aspeed-lpc.txt
@@ -9,13 +9,7 @@
 conditions it can also take the role of bus master.
 
 The LPC controller is represented as a multi-function device to account for the
-mix of functionality it provides. The principle split is between the register
-layout at the start of the I/O space which is, to quote the Aspeed datasheet,
-"basically compatible with the [LPC registers from the] popular BMC controller
-H8S/2168[1]", and everything else, where everything else is an eclectic
-collection of functions with a esoteric register layout. "Everything else",
-here labeled the "host" portion of the controller, includes, but is not limited
-to:
+mix of functionality, which includes, but is not limited to:
 
 * An IPMI Block Transfer[2] Controller
 
@@ -44,80 +38,36 @@
 ===================
 
 - compatible:	One of:
-		"aspeed,ast2400-lpc", "simple-mfd"
-		"aspeed,ast2500-lpc", "simple-mfd"
-		"aspeed,ast2600-lpc", "simple-mfd"
+		"aspeed,ast2400-lpc-v2", "simple-mfd", "syscon"
+		"aspeed,ast2500-lpc-v2", "simple-mfd", "syscon"
+		"aspeed,ast2600-lpc-v2", "simple-mfd", "syscon"
 
 - reg:		contains the physical address and length values of the Aspeed
                 LPC memory region.
 
 - #address-cells: <1>
 - #size-cells:	<1>
-- ranges: 	Maps 0 to the physical address and length of the LPC memory
-                region
-
-Required LPC Child nodes
-========================
-
-BMC Node
---------
-
-- compatible:	One of:
-		"aspeed,ast2400-lpc-bmc"
-		"aspeed,ast2500-lpc-bmc"
-		"aspeed,ast2600-lpc-bmc"
-
-- reg:		contains the physical address and length values of the
-                H8S/2168-compatible LPC controller memory region
-
-Host Node
----------
-
-- compatible:   One of:
-		"aspeed,ast2400-lpc-host", "simple-mfd", "syscon"
-		"aspeed,ast2500-lpc-host", "simple-mfd", "syscon"
-		"aspeed,ast2600-lpc-host", "simple-mfd", "syscon"
-
-- reg:		contains the address and length values of the host-related
-                register space for the Aspeed LPC controller
-
-- #address-cells: <1>
-- #size-cells:	<1>
-- ranges: 	Maps 0 to the address and length of the host-related LPC memory
+- ranges:	Maps 0 to the physical address and length of the LPC memory
                 region
 
 Example:
 
 lpc: lpc@1e789000 {
-	compatible = "aspeed,ast2500-lpc", "simple-mfd";
+	compatible = "aspeed,ast2500-lpc-v2", "simple-mfd", "syscon";
 	reg = <0x1e789000 0x1000>;
 
 	#address-cells = <1>;
 	#size-cells = <1>;
 	ranges = <0x0 0x1e789000 0x1000>;
 
-	lpc_bmc: lpc-bmc@0 {
-		compatible = "aspeed,ast2500-lpc-bmc";
+	lpc_snoop: lpc-snoop@0 {
+		compatible = "aspeed,ast2600-lpc-snoop";
 		reg = <0x0 0x80>;
-	};
-
-	lpc_host: lpc-host@80 {
-		compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon";
-		reg = <0x80 0x1e0>;
-		reg-io-width = <4>;
-
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0x0 0x80 0x1e0>;
+		interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+		snoop-ports = <0x80>;
 	};
 };
 
-BMC Node Children
-==================
-
-
-Host Node Children
-==================
 
 LPC Host Interface Controller
 -------------------
@@ -149,14 +99,12 @@
 
 Example:
 
-lpc-host@80 {
-	lpc_ctrl: lpc-ctrl@0 {
-		compatible = "aspeed,ast2500-lpc-ctrl";
-		reg = <0x0 0x80>;
-		clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-		memory-region = <&flash_memory>;
-		flash = <&spi>;
-	};
+lpc_ctrl: lpc-ctrl@80 {
+	compatible = "aspeed,ast2500-lpc-ctrl";
+	reg = <0x80 0x80>;
+	clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+	memory-region = <&flash_memory>;
+	flash = <&spi>;
 };
 
 LPC Host Controller
@@ -179,9 +127,9 @@
 
 Example:
 
-lhc: lhc@20 {
+lhc: lhc@a0 {
 	compatible = "aspeed,ast2500-lhc";
-	reg = <0x20 0x24 0x48 0x8>;
+	reg = <0xa0 0x24 0xc8 0x8>;
 };
 
 LPC reset control
@@ -192,16 +140,18 @@
 
 Required properties:
 
- - compatible:		"aspeed,ast2600-lpc-reset" or
-			"aspeed,ast2500-lpc-reset"
-			"aspeed,ast2400-lpc-reset"
+ - compatible:		One of:
+			"aspeed,ast2600-lpc-reset";
+			"aspeed,ast2500-lpc-reset";
+			"aspeed,ast2400-lpc-reset";
+
  - reg:			offset and length of the IP in the LHC memory region
  - #reset-controller	indicates the number of reset cells expected
 
 Example:
 
-lpc_reset: reset-controller@18 {
+lpc_reset: reset-controller@98 {
         compatible = "aspeed,ast2500-lpc-reset";
-        reg = <0x18 0x4>;
+        reg = <0x98 0x4>;
         #reset-cells = <1>;
 };
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5a9d99d..f845238 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -337,6 +337,7 @@
 	nuvoton-wpcm450-supermicro-x9sci-ln4f.dtb
 dtb-$(CONFIG_ARCH_NPCM7XX) += \
 	nuvoton-npcm730-gsj.dtb \
+	nuvoton-npcm730-gbs.dtb \
 	nuvoton-npcm730-kudo.dtb \
 	nuvoton-npcm750-evb.dtb \
 	nuvoton-npcm750-runbmc-olympus.dtb
@@ -1408,6 +1409,7 @@
 	aspeed-bmc-ampere-mtjade.dtb \
 	aspeed-bmc-arm-centriq2400-rep.dtb \
 	aspeed-bmc-arm-stardragon4800-rep2.dtb \
+	aspeed-bmc-asrock-e3c246d4i.dtb \
 	aspeed-bmc-bytedance-g220a.dtb \
 	aspeed-bmc-facebook-cmm.dtb \
 	aspeed-bmc-facebook-galaxy100.dtb \
@@ -1420,6 +1422,7 @@
 	aspeed-bmc-facebook-yosemitev2.dtb \
 	aspeed-bmc-ibm-everest.dtb \
 	aspeed-bmc-ibm-rainier.dtb \
+	aspeed-bmc-ibm-rainier-1s4u.dtb \
 	aspeed-bmc-ibm-rainier-4u.dtb \
 	aspeed-bmc-intel-s2600wf.dtb \
 	aspeed-bmc-inspur-fp5280g2.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts b/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts
new file mode 100644
index 0000000..dcab6e7
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-asrock-e3c246d4i.dts
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "aspeed-g5.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+#include <dt-bindings/i2c/i2c.h>
+
+/{
+	model = "ASRock E3C246D4I BMC";
+	compatible = "asrock,e3c246d4i-bmc", "aspeed,ast2500";
+
+	aliases {
+		serial4 = &uart5;
+	};
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=tty0 console=ttyS4,115200 earlyprintk";
+	};
+
+	memory@80000000 {
+		reg = <0x80000000 0x20000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		heartbeat {
+			/* BMC_HB_LED_N */
+			gpios = <&gpio ASPEED_GPIO(H, 6) GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "timer";
+		};
+
+		system-fault {
+			/* SYSTEM_FAULT_LED_N */
+			gpios = <&gpio ASPEED_GPIO(Z, 2) GPIO_ACTIVE_LOW>;
+			panic-indicator;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		uid-button {
+			label = "uid-button";
+			gpios = <&gpio ASPEED_GPIO(F, 1) GPIO_ACTIVE_LOW>;
+			linux,code = <ASPEED_GPIO(F, 1)>;
+		};
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>, <&adc 4>,
+			<&adc 5>, <&adc 6>, <&adc 7>, <&adc 8>, <&adc 9>,
+			<&adc 10>, <&adc 11>, <&adc 12>;
+	};
+};
+
+&fmc {
+	status = "okay";
+	flash@0 {
+		status = "okay";
+		m25p,fast-read;
+		label = "bmc";
+		spi-max-frequency = <100000000>; /* 100 MHz */
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&uart5 {
+	status = "okay";
+};
+
+&vuart {
+	status = "okay";
+	aspeed,sirq-active-high;
+};
+
+&mac0 {
+	status = "okay";
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii1_default &pinctrl_mdio1_default>;
+};
+
+&i2c1 {
+	status = "okay";
+
+	/* thermal sensor, one diode run to a disconnected header */
+	w83773g@4c {
+		compatible = "nuvoton,w83773g";
+		reg = <0x4c>;
+	};
+};
+
+&i2c3 {
+	status = "okay";
+
+	/* FRU EEPROM */
+	eeprom@57 {
+		compatible = "st,24c128", "atmel,24c128";
+		reg = <0x57>;
+		pagesize = <16>;
+	};
+};
+
+&video {
+	status = "okay";
+};
+
+&vhub {
+	status = "okay";
+};
+
+&lpc_ctrl {
+	status = "okay";
+};
+
+&lpc_snoop {
+	status = "okay";
+	snoop-ports = <0x80>;
+};
+
+&gpio {
+	status = "okay";
+	gpio-line-names =
+		/*  A */ "BMC_MAC1_INTB", "BMC_MAC2_INTB", "NMI_BTN_N", "BMC_NMI",
+			"", "", "", "",
+		/*  B */ "", "", "", "", "", "IRQ_BMC_PCH_SMI_LPC_N", "", "",
+		/*  C */ "", "", "", "", "", "", "", "",
+		/*  D */ "BMC_PSIN", "BMC_PSOUT", "BMC_RESETCON", "RESETCON",
+			"", "", "", "",
+		/*  E */ "", "", "", "", "", "", "", "",
+		/*  F */ "LOCATORLED_STATUS_N", "LOCATORBTN", "", "",
+			"", "", "BMC_PCH_SCI_LPC", "BMC_NCSI_MUX_CTL",
+		/*  G */ "HWM_BAT_EN", "CHASSIS_ID0", "CHASSIS_ID1", "CHASSIS_ID2",
+			"BMC_ALERT1_N_R", "BMC_ALERT2_N_R", "BMC_ALERT3_N", "SML0ALERT",
+		/*  H */ "FM_ME_RCVR_N", "O_PWROK", "SKL_CNL_R", "D4_DIMM_EVENT_3V_N",
+			"MFG_MODE_N", "BMC_RTCRST", "BMC_HB_LED_N", "BMC_CASEOPEN",
+		/*  I */ "", "", "", "", "", "", "", "",
+		/*  J */ "BMC_READY", "BMC_PCH_BIOS_CS_N", "BMC_SMI", "",
+			"", "", "", "",
+		/*  K */ "", "", "", "", "", "", "", "",
+		/*  L */ "BMC_CTS1", "BMC_DCD1", "BMC_DSR1", "BMC_RI1",
+			"BMC_DTR1", "BMC_RTS1", "BMC_TXD1", "BMC_RXD1",
+		/*  M */ "BMC_LAN0_DIS_N", "BMC_LAN1_DIS_N", "", "",
+			"", "", "", "",
+		/*  N */ "", "", "", "", "", "", "", "",
+		/*  O */ "", "", "", "", "", "", "", "",
+		/*  P */ "", "", "", "", "", "", "", "",
+		/*  Q */ "", "", "", "",
+			"BMC_SBM_PRESENT_1_N", "BMC_SBM_PRESENT_2_N",
+			"BMC_SBM_PRESENT_3_N", "BMC_PCIE_WAKE_N",
+		/*  R */ "", "", "", "", "", "", "", "",
+		/*  S */ "PCHHOT_BMC_N", "", "RSMRST",
+			"", "", "", "", "",
+		/*  T */ "", "", "", "", "", "", "", "",
+		/*  U */ "", "", "", "", "", "", "", "",
+		/*  V */ "", "", "", "", "", "", "", "",
+		/*  W */ "PS_PWROK", /* dummy always-high signal */
+			"", "", "", "", "", "", "",
+		/*  X */ "", "", "", "", "", "", "", "",
+		/*  Y */ "SLP_S3", "SLP_S5", "", "", "", "", "", "",
+		/*  Z */ "CPU_CATERR_BMC_PCH_N", "", "SYSTEM_FAULT_LED_N", "BMC_THROTTLE_N",
+			"", "", "", "",
+		/* AA */ "CPU1_THERMTRIP_LATCH_N", "", "CPU1_PROCHOT_N", "",
+			"", "", "IRQ_SMI_ACTIVE_N", "FM_BIOS_POST_CMPLT_N",
+		/* AB */ "", "", "ME_OVERRIDE", "BMC_DMI_MODIFY",
+			"", "", "", "",
+		/* AC */ "LAD0", "LAD1", "LAD2", "LAD3",
+			"CK_33M_BMC", "LFRAME", "SERIRQ", "S_PLTRST";
+
+	/* Assert BMC_READY so BIOS doesn't sit around waiting for it */
+	bmc-ready {
+		gpio-hog;
+		gpios = <ASPEED_GPIO(J, 0) GPIO_ACTIVE_LOW>;
+		output-high;
+	};
+};
+
+&adc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_adc0_default
+			&pinctrl_adc1_default
+			&pinctrl_adc2_default
+			&pinctrl_adc3_default
+			&pinctrl_adc4_default
+			&pinctrl_adc5_default
+			&pinctrl_adc6_default
+			&pinctrl_adc7_default
+			&pinctrl_adc8_default
+			&pinctrl_adc9_default
+			&pinctrl_adc10_default
+			&pinctrl_adc11_default
+			&pinctrl_adc12_default>;
+};
+
+&kcs3 {
+	status = "okay";
+	aspeed,lpc-io-reg = <0xca2>;
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
index 6bd8766..3295c8c 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-everest.dts
@@ -44,6 +44,58 @@ aliases {
 		i2c415 = &cfam3_i2c15;
 		i2c416 = &cfam3_i2c16;
 		i2c417 = &cfam3_i2c17;
+		i2c500 = &cfam4_i2c0;
+		i2c501 = &cfam4_i2c1;
+		i2c510 = &cfam4_i2c10;
+		i2c511 = &cfam4_i2c11;
+		i2c512 = &cfam4_i2c12;
+		i2c513 = &cfam4_i2c13;
+		i2c514 = &cfam4_i2c14;
+		i2c515 = &cfam4_i2c15;
+		i2c602 = &cfam5_i2c2;
+		i2c603 = &cfam5_i2c3;
+		i2c610 = &cfam5_i2c10;
+		i2c611 = &cfam5_i2c11;
+		i2c614 = &cfam5_i2c14;
+		i2c615 = &cfam5_i2c15;
+		i2c616 = &cfam5_i2c16;
+		i2c617 = &cfam5_i2c17;
+		i2c700 = &cfam6_i2c0;
+		i2c701 = &cfam6_i2c1;
+		i2c710 = &cfam6_i2c10;
+		i2c711 = &cfam6_i2c11;
+		i2c712 = &cfam6_i2c12;
+		i2c713 = &cfam6_i2c13;
+		i2c714 = &cfam6_i2c14;
+		i2c715 = &cfam6_i2c15;
+		i2c802 = &cfam7_i2c2;
+		i2c803 = &cfam7_i2c3;
+		i2c810 = &cfam7_i2c10;
+		i2c811 = &cfam7_i2c11;
+		i2c814 = &cfam7_i2c14;
+		i2c815 = &cfam7_i2c15;
+		i2c816 = &cfam7_i2c16;
+		i2c817 = &cfam7_i2c17;
+
+		i2c16 = &i2c4mux0chn0;
+		i2c17 = &i2c4mux0chn1;
+		i2c18 = &i2c4mux0chn2;
+		i2c19 = &i2c5mux0chn0;
+		i2c20 = &i2c5mux0chn1;
+		i2c21 = &i2c5mux0chn2;
+		i2c22 = &i2c5mux0chn3;
+		i2c23 = &i2c6mux0chn0;
+		i2c24 = &i2c6mux0chn1;
+		i2c25 = &i2c6mux0chn2;
+		i2c26 = &i2c6mux0chn3;
+		i2c27 = &i2c14mux0chn0;
+		i2c28 = &i2c14mux0chn1;
+		i2c29 = &i2c14mux0chn2;
+		i2c30 = &i2c14mux0chn3;
+		i2c31 = &i2c14mux1chn0;
+		i2c32 = &i2c14mux1chn1;
+		i2c33 = &i2c14mux1chn2;
+		i2c34 = &i2c14mux1chn3;
 
 		serial4 = &uart5;
 
@@ -63,6 +115,22 @@ aliases {
 		spi41 = &cfam3_spi1;
 		spi42 = &cfam3_spi2;
 		spi43 = &cfam3_spi3;
+		spi50 = &cfam4_spi0;
+		spi51 = &cfam4_spi1;
+		spi52 = &cfam4_spi2;
+		spi53 = &cfam4_spi3;
+		spi60 = &cfam5_spi0;
+		spi61 = &cfam5_spi1;
+		spi62 = &cfam5_spi2;
+		spi63 = &cfam5_spi3;
+		spi70 = &cfam6_spi0;
+		spi71 = &cfam6_spi1;
+		spi72 = &cfam6_spi2;
+		spi73 = &cfam6_spi3;
+		spi80 = &cfam7_spi0;
+		spi81 = &cfam7_spi1;
+		spi82 = &cfam7_spi2;
+		spi83 = &cfam7_spi3;
 	};
 
 	chosen {
@@ -103,6 +171,889 @@ vga_memory: region@bf000000 {
 			reg = <0xbf000000 0x01000000>; /* 16M */
 		};
 	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <1000>;
+
+		fan0-presence {
+			label = "fan0-presence";
+			gpios = <&pca0 15 GPIO_ACTIVE_LOW>;
+			linux,code = <15>;
+		};
+
+		fan1-presence {
+			label = "fan1-presence";
+			gpios = <&pca0 14 GPIO_ACTIVE_LOW>;
+			linux,code = <14>;
+		};
+
+		fan2-presence {
+			label = "fan2-presence";
+			gpios = <&pca0 13 GPIO_ACTIVE_LOW>;
+			linux,code = <13>;
+		};
+
+		fan3-presence {
+			label = "fan3-presence";
+			gpios = <&pca0 12 GPIO_ACTIVE_LOW>;
+			linux,code = <12>;
+		};
+	};
+};
+
+&gpio0 {
+	gpio-line-names =
+	/*A0-A7*/	"","","","","","","","",
+	/*B0-B7*/	"USERSPACE_RSTIND_BUFF","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"","","","","","","","",
+	/*E0-E7*/	"","","","","","","","",
+	/*F0-F7*/	"PIN_HOLE_RESET_IN_N","","",
+				"PIN_HOLE_RESET_OUT_N","","","","",
+	/*G0-G7*/	"","","","","","","","",
+	/*H0-H7*/	"","","","","","","","",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","","","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","",
+	/*P0-P7*/	"","","","","","","","",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"","","","","","I2C_FLASH_MICRO_N","","",
+	/*S0-S7*/	"","","","","","","","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","BMC_3RESTART_ATTEMPT_P","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"","","","","","","","",
+	/*Z0-Z7*/   "","","","","","","","";
+};
+
+&i2c0 {
+	status = "okay";
+
+	eeprom@51 {
+		compatible = "atmel,24c64";
+		reg = <0x51>;
+	};
+
+	pca1: pca9552@62 {
+		compatible = "nxp,pca9552";
+		reg = <0x62>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"presence-ps0",
+			"presence-ps1",
+			"presence-ps2",
+			"presence-ps3",
+			"presence-pdb",
+			"presence-tpm",
+			"", "",
+			"presence-cp0",
+			"presence-cp1",
+			"presence-cp2",
+			"presence-cp3",
+			"presence-dasd",
+			"presence-lcd-op",
+			"presence-base-op",
+			"";
+
+		gpio@0 {
+			reg = <0>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@01 {
+			reg = <1>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@8 {
+			reg = <8>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@9 {
+			reg = <9>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@10 {
+			reg = <10>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@11 {
+			reg = <11>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@12 {
+			reg = <12>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@13 {
+			reg = <13>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@14 {
+			reg = <14>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@15 {
+			reg = <15>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+	};
+};
+
+&i2c1 {
+	status = "okay";
+
+	pca2: pca9552@61 {
+		compatible = "nxp,pca9552";
+		reg = <0x61>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"presence-cable-card1",
+			"presence-cable-card2",
+			"presence-cable-card3",
+			"presence-cable-card4",
+			"presence-cable-card5",
+			"expander-cable-card1",
+			"expander-cable-card2",
+			"expander-cable-card3",
+			"expander-cable-card4",
+			"expander-cable-card5";
+
+		gpio@0 {
+			reg = <0>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@1 {
+			reg = <1>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@8 {
+			reg = <8>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@9 {
+			reg = <9>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+	};
+
+	pca3: pca9552@62 {
+		compatible = "nxp,pca9552";
+		reg = <0x62>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"presence-cable-card6",
+			"presence-cable-card7",
+			"presence-cable-card8",
+			"presence-cable-card9",
+			"presence-cable-card10",
+			"presence-cable-card11",
+			"expander-cable-card6",
+			"expander-cable-card7",
+			"expander-cable-card8",
+			"expander-cable-card9",
+			"expander-cable-card10",
+			"expander-cable-card11";
+
+		gpio@0 {
+			reg = <0>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@1 {
+			reg = <1>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@8 {
+			reg = <8>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@9 {
+			reg = <9>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@10 {
+			reg = <10>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@11 {
+			reg = <11>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+	};
+
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+
+	eeprom@54 {
+		compatible = "atmel,24c128";
+		reg = <0x54>;
+	};
+
+	power-supply@68 {
+		compatible = "ibm,cffps";
+		reg = <0x68>;
+	};
+
+	power-supply@69 {
+		compatible = "ibm,cffps";
+		reg = <0x69>;
+	};
+
+	power-supply@6a {
+		compatible = "ibm,cffps";
+		reg = <0x6a>;
+	};
+
+	power-supply@6b {
+		compatible = "ibm,cffps";
+		reg = <0x6b>;
+	};
+};
+
+&i2c4 {
+	status = "okay";
+
+	i2c-switch@70 {
+		compatible = "nxp,pca9546";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+		i2c-mux-idle-disconnect;
+
+		i2c4mux0chn0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			eeprom@52 {
+				compatible = "atmel,24c64";
+				reg = <0x52>;
+			};
+		};
+
+		i2c4mux0chn1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			eeprom@50 {
+				compatible = "atmel,24c64";
+				reg = <0x50>;
+			};
+		};
+
+		i2c4mux0chn2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			eeprom@51 {
+				compatible = "atmel,24c64";
+				reg = <0x51>;
+			};
+		};
+	};
+};
+
+&i2c5 {
+	status = "okay";
+
+	i2c-switch@70 {
+		compatible = "nxp,pca9546";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+		i2c-mux-idle-disconnect;
+
+		i2c5mux0chn0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			eeprom@50 {
+				compatible = "atmel,24c64";
+				reg = <0x50>;
+			};
+		};
+
+		i2c5mux0chn1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			eeprom@51 {
+				compatible = "atmel,24c64";
+				reg = <0x51>;
+			};
+		};
+
+		i2c5mux0chn2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			eeprom@52 {
+				compatible = "atmel,24c64";
+				reg = <0x52>;
+			};
+		};
+
+		i2c5mux0chn3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			eeprom@53 {
+				compatible = "atmel,24c64";
+				reg = <0x53>;
+			};
+		};
+	};
+};
+
+&i2c6 {
+	status = "okay";
+
+	i2c-switch@70 {
+		compatible = "nxp,pca9546";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+		i2c-mux-idle-disconnect;
+
+		i2c6mux0chn0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			eeprom@50 {
+				compatible = "atmel,24c64";
+				reg = <0x50>;
+			};
+		};
+
+		i2c6mux0chn1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			eeprom@52 {
+				compatible = "atmel,24c64";
+				reg = <0x52>;
+			};
+		};
+
+		i2c6mux0chn2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			eeprom@53 {
+				compatible = "atmel,24c64";
+				reg = <0x53>;
+			};
+		};
+
+		i2c6mux0chn3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			eeprom@51 {
+				compatible = "atmel,24c64";
+				reg = <0x51>;
+			};
+		};
+	};
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&i2c8 {
+	status = "okay";
+
+	ucd90320@11 {
+		compatible = "ti,ucd90320";
+		reg = <0x11>;
+	};
+
+	rtc@32 {
+		compatible = "epson,rx8900";
+		reg = <0x32>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c64";
+		reg = <0x51>;
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c128";
+		reg = <0x50>;
+	};
+};
+
+&i2c9 {
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c128";
+		reg = <0x50>;
+	};
+
+	eeprom@51 {
+		compatible = "atmel,24c128";
+		reg = <0x51>;
+	};
+
+	eeprom@53 {
+		compatible = "atmel,24c128";
+		reg = <0x53>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c128";
+		reg = <0x52>;
+	};
+};
+
+&i2c10 {
+	status = "okay";
+
+	eeprom@51 {
+		compatible = "atmel,24c128";
+		reg = <0x51>;
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c128";
+		reg = <0x50>;
+	};
+
+	eeprom@53 {
+		compatible = "atmel,24c128";
+		reg = <0x53>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c128";
+		reg = <0x52>;
+	};
+};
+
+&i2c11 {
+	status = "okay";
+
+	eeprom@51 {
+		compatible = "atmel,24c128";
+		reg = <0x51>;
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c128";
+		reg = <0x50>;
+	};
+
+	eeprom@53 {
+		compatible = "atmel,24c128";
+		reg = <0x53>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c128";
+		reg = <0x52>;
+	};
+};
+
+&i2c12 {
+	status = "okay";
+};
+
+&i2c13 {
+	status = "okay";
+
+	eeprom@51 {
+		compatible = "atmel,24c128";
+		reg = <0x51>;
+	};
+
+	eeprom@50 {
+		compatible = "atmel,24c128";
+		reg = <0x50>;
+	};
+
+	eeprom@53 {
+		compatible = "atmel,24c128";
+		reg = <0x53>;
+	};
+
+	eeprom@52 {
+		compatible = "atmel,24c128";
+		reg = <0x52>;
+	};
+};
+
+&i2c14 {
+	status = "okay";
+
+	i2c-switch@70 {
+		compatible = "nxp,pca9546";
+		reg = <0x70>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+		i2c-mux-idle-disconnect;
+
+		i2c14mux0chn0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			eeprom@50 {
+				compatible = "atmel,24c64";
+				reg = <0x50>;
+			};
+		};
+
+		i2c14mux0chn1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			eeprom@51 {
+				compatible = "atmel,24c32";
+				reg = <0x51>;
+			};
+		};
+
+		i2c14mux0chn2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			eeprom@50 {
+				compatible = "atmel,24c32";
+				reg = <0x50>;
+			};
+		};
+
+		i2c14mux0chn3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+
+			max31785@52 {
+				compatible = "maxim,max31785a";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x52>;
+
+				fan@0 {
+					compatible = "pmbus-fan";
+					reg = <0>;
+					tach-pulses = <2>;
+				};
+
+				fan@1 {
+					compatible = "pmbus-fan";
+					reg = <1>;
+					tach-pulses = <2>;
+				};
+
+				fan@2 {
+					compatible = "pmbus-fan";
+					reg = <2>;
+					tach-pulses = <2>;
+				};
+
+				fan@3 {
+					compatible = "pmbus-fan";
+					reg = <3>;
+					tach-pulses = <2>;
+				};
+			};
+
+			pca0: pca9552@61 {
+				compatible = "nxp,pca9552";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x61>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				gpio-line-names =
+					"","","","",
+					"","","","",
+					"","","","",
+					"presence-fan3",
+					"presence-fan2",
+					"presence-fan1",
+					"presence-fan0";
+
+				gpio@0 {
+					reg = <0>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@1 {
+					reg = <1>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@2 {
+					reg = <2>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@3 {
+					reg = <3>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@4 {
+					reg = <4>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@5 {
+					reg = <5>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@6 {
+					reg = <6>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@7 {
+					reg = <7>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@8 {
+					reg = <8>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@9 {
+					reg = <9>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@10 {
+					reg = <10>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@11 {
+					reg = <11>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@12 {
+					reg = <12>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@13 {
+					reg = <13>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@14 {
+					reg = <14>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+
+				gpio@15 {
+					reg = <15>;
+					type = <PCA955X_TYPE_GPIO>;
+				};
+			};
+		};
+	};
+
+	i2c-switch@71 {
+		compatible = "nxp,pca9546";
+		reg = <0x71>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		status = "okay";
+		i2c-mux-idle-disconnect;
+
+		i2c14mux1chn0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			eeprom@50 {
+				compatible = "atmel,24c32";
+				reg = <0x50>;
+			};
+		};
+
+		i2c14mux1chn1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			eeprom@50 {
+				compatible = "atmel,24c32";
+				reg = <0x50>;
+			};
+		};
+
+		i2c14mux1chn2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			eeprom@50 {
+				compatible = "atmel,24c32";
+				reg = <0x50>;
+			};
+		};
+
+		i2c14mux1chn3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			eeprom@50 {
+				compatible = "atmel,24c32";
+				reg = <0x50>;
+			};
+		};
+	};
+};
+
+&i2c15 {
+	status = "okay";
 };
 
 &ehci1 {
@@ -133,7 +1084,7 @@ &fsim0 {
 	 */
 	cfam-reset-gpios = <&gpio0 ASPEED_GPIO(Q, 0) GPIO_ACTIVE_HIGH>;
 
-	cfam@0,0 {
+	cfam@0,0 {	/* DCM0_C0 */
 		reg = <0 0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -277,7 +1228,7 @@ fsi_hub0: hub@3400 {
 };
 
 &fsi_hub0 {
-	cfam@1,0 {
+	cfam@1,0 { /* DCM0_C1 */
 		reg = <1 0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -421,7 +1372,7 @@ fsi_hub1: hub@3400 {
 		};
 	};
 
-	cfam@2,0 {
+	cfam@2,0 { /* DCM1_C0 */
 		reg = <2 0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -565,7 +1516,7 @@ fsi_hub2: hub@3400 {
 		};
 	};
 
-	cfam@3,0 {
+	cfam@3,0 { /* DCM1_C1 */
 		reg = <3 0>;
 		#address-cells = <1>;
 		#size-cells = <1>;
@@ -708,6 +1659,582 @@ fsi_hub3: hub@3400 {
 			no-scan-on-init;
 		};
 	};
+
+	cfam@4,0 { /* DCM2_C0 */
+		reg = <4 0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		chip-id = <4>;
+
+		scom@1000 {
+			compatible = "ibm,fsi2pib";
+			reg = <0x1000 0x400>;
+		};
+
+		i2c@1800 {
+			compatible = "ibm,fsi-i2c-master";
+			reg = <0x1800 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam4_i2c0: i2c-bus@0 {
+				reg = <0>;	/* OM01 */
+			};
+
+			cfam4_i2c1: i2c-bus@1 {
+				reg = <1>;	/* OM23 */
+			};
+
+			cfam4_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam4_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam4_i2c12: i2c-bus@c {
+				reg = <12>;	/* OP4A */
+			};
+
+			cfam4_i2c13: i2c-bus@d {
+				reg = <13>;	/* OP4B */
+			};
+
+			cfam4_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam4_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
+		};
+
+		fsi2spi@1c00 {
+			compatible = "ibm,fsi2spi";
+			reg = <0x1c00 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam4_spi0: spi@0 {
+				reg = <0x0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam4_spi1: spi@20 {
+				reg = <0x20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam4_spi2: spi@40 {
+				reg = <0x40>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam4_spi3: spi@60 {
+				reg = <0x60>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+		};
+
+		sbefifo@2400 {
+			compatible = "ibm,p9-sbefifo";
+			reg = <0x2400 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fsi_occ4: occ {
+				compatible = "ibm,p10-occ";
+			};
+		};
+
+		fsi_hub4: hub@3400 {
+			compatible = "fsi-master-hub";
+			reg = <0x3400 0x400>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+
+			no-scan-on-init;
+		};
+	};
+
+	cfam@5,0 { /* DCM2_C1 */
+		reg = <5 0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		chip-id = <5>;
+
+		scom@1000 {
+			compatible = "ibm,fsi2pib";
+			reg = <0x1000 0x400>;
+		};
+
+		i2c@1800 {
+			compatible = "ibm,fsi-i2c-master";
+			reg = <0x1800 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam5_i2c2: i2c-bus@2 {
+				reg = <2>;	/* OM45 */
+			};
+
+			cfam5_i2c3: i2c-bus@3 {
+				reg = <3>;	/* OM67 */
+			};
+
+			cfam5_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam5_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam5_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam5_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
+
+			cfam5_i2c16: i2c-bus@10 {
+				reg = <16>;	/* OP6A */
+			};
+
+			cfam5_i2c17: i2c-bus@11 {
+				reg = <17>;	/* OP6B */
+			};
+		};
+
+		fsi2spi@1c00 {
+			compatible = "ibm,fsi2spi";
+			reg = <0x1c00 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam5_spi0: spi@0 {
+				reg = <0x0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam5_spi1: spi@20 {
+				reg = <0x20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam5_spi2: spi@40 {
+				reg = <0x40>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam5_spi3: spi@60 {
+				reg = <0x60>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+		};
+
+		sbefifo@2400 {
+			compatible = "ibm,p9-sbefifo";
+			reg = <0x2400 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fsi_occ5: occ {
+				compatible = "ibm,p10-occ";
+			};
+		};
+
+		fsi_hub5: hub@3400 {
+			compatible = "fsi-master-hub";
+			reg = <0x3400 0x400>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+
+			no-scan-on-init;
+		};
+	};
+
+	cfam@6,0 { /* DCM3_C0 */
+		reg = <6 0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		chip-id = <6>;
+
+		scom@1000 {
+			compatible = "ibm,fsi2pib";
+			reg = <0x1000 0x400>;
+		};
+
+		i2c@1800 {
+			compatible = "ibm,fsi-i2c-master";
+			reg = <0x1800 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam6_i2c0: i2c-bus@0 {
+				reg = <0>;	/* OM01 */
+			};
+
+			cfam6_i2c1: i2c-bus@1 {
+				reg = <1>;	/* OM23 */
+			};
+
+			cfam6_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam6_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam6_i2c12: i2c-bus@c {
+				reg = <12>;	/* OP4A */
+			};
+
+			cfam6_i2c13: i2c-bus@d {
+				reg = <13>;	/* OP4B */
+			};
+
+			cfam6_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam6_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
+		};
+
+		fsi2spi@1c00 {
+			compatible = "ibm,fsi2spi";
+			reg = <0x1c00 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam6_spi0: spi@0 {
+				reg = <0x0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam6_spi1: spi@20 {
+				reg = <0x20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam6_spi2: spi@40 {
+				reg = <0x40>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam6_spi3: spi@60 {
+				reg = <0x60>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+		};
+
+		sbefifo@2400 {
+			compatible = "ibm,p9-sbefifo";
+			reg = <0x2400 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fsi_occ6: occ {
+				compatible = "ibm,p10-occ";
+			};
+		};
+
+		fsi_hub6: hub@3400 {
+			compatible = "fsi-master-hub";
+			reg = <0x3400 0x400>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+
+			no-scan-on-init;
+		};
+	};
+
+	cfam@7,0 { /* DCM3_C1 */
+		reg = <7 0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		chip-id = <7>;
+
+		scom@1000 {
+			compatible = "ibm,fsi2pib";
+			reg = <0x1000 0x400>;
+		};
+
+		i2c@1800 {
+			compatible = "ibm,fsi-i2c-master";
+			reg = <0x1800 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam7_i2c2: i2c-bus@2 {
+				reg = <2>;	/* OM45 */
+			};
+
+			cfam7_i2c3: i2c-bus@3 {
+				reg = <3>;	/* OM67 */
+			};
+
+			cfam7_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam7_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam7_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam7_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
+
+			cfam7_i2c16: i2c-bus@10 {
+				reg = <16>;	/* OP6A */
+			};
+
+			cfam7_i2c17: i2c-bus@11 {
+				reg = <17>;	/* OP6B */
+			};
+		};
+
+		fsi2spi@1c00 {
+			compatible = "ibm,fsi2spi";
+			reg = <0x1c00 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam7_spi0: spi@0 {
+				reg = <0x0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam7_spi1: spi@20 {
+				reg = <0x20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam7_spi2: spi@40 {
+				reg = <0x40>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam7_spi3: spi@60 {
+				reg = <0x60>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+		};
+
+		sbefifo@2400 {
+			compatible = "ibm,p9-sbefifo";
+			reg = <0x2400 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fsi_occ7: occ {
+				compatible = "ibm,p10-occ";
+			};
+		};
+
+		fsi_hub7: hub@3400 {
+			compatible = "fsi-master-hub";
+			reg = <0x3400 0x400>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+
+			no-scan-on-init;
+		};
+	};
 };
 
 /* Legacy OCC numbering (to get rid of when userspace is fixed) */
@@ -727,6 +2254,22 @@ &fsi_occ3 {
 	reg = <4>;
 };
 
+&fsi_occ4 {
+	reg = <5>;
+};
+
+&fsi_occ5 {
+	reg = <6>;
+};
+
+&fsi_occ6 {
+	reg = <7>;
+};
+
+&fsi_occ7 {
+	reg = <8>;
+};
+
 &ibt {
 	status = "okay";
 };
@@ -769,6 +2312,20 @@ &mac3 {
 	use-ncsi;
 };
 
+&wdt1 {
+	aspeed,reset-type = "none";
+	aspeed,external-signal;
+	aspeed,ext-push-pull;
+	aspeed,ext-active-high;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdtrst1_default>;
+};
+
+&wdt2 {
+	status = "okay";
+};
+
 &xdma {
 	status = "okay";
 	memory-region = <&vga_memory>;
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-1s4u.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-1s4u.dts
new file mode 100644
index 0000000..d1d31a5
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-1s4u.dts
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright 2021 IBM Corp.
+/dts-v1/;
+
+#include "aspeed-bmc-ibm-rainier-4u.dts"
+
+/ {
+	model = "Rainier 1S4U";
+};
+
+&max {
+	/delete-node/ fan4;
+	/delete-node/ fan5;
+};
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-4u.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-4u.dts
index 291f7d6..f7fd3b3 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-4u.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier-4u.dts
@@ -22,16 +22,30 @@ power-supply@6b {
 
 &fan0 {
 	tach-pulses = <4>;
+	/delete-property/ maxim,fan-dual-tach;
 };
 
 &fan1 {
 	tach-pulses = <4>;
+	/delete-property/ maxim,fan-dual-tach;
 };
 
 &fan2 {
 	tach-pulses = <4>;
+	/delete-property/ maxim,fan-dual-tach;
 };
 
 &fan3 {
 	tach-pulses = <4>;
+	/delete-property/ maxim,fan-dual-tach;
+};
+
+&fan4 {
+	tach-pulses = <4>;
+	/delete-property/ maxim,fan-dual-tach;
+};
+
+&fan5 {
+	tach-pulses = <4>;
+	/delete-property/ maxim,fan-dual-tach;
 };
diff --git a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
index 6c9804d..4dbb030 100644
--- a/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-ibm-rainier.dts
@@ -12,6 +12,39 @@ / {
 	compatible = "ibm,rainier-bmc", "aspeed,ast2600";
 
 	aliases {
+		i2c100 = &cfam0_i2c0;
+		i2c101 = &cfam0_i2c1;
+		i2c110 = &cfam0_i2c10;
+		i2c111 = &cfam0_i2c11;
+		i2c112 = &cfam0_i2c12;
+		i2c113 = &cfam0_i2c13;
+		i2c114 = &cfam0_i2c14;
+		i2c115 = &cfam0_i2c15;
+		i2c202 = &cfam1_i2c2;
+		i2c203 = &cfam1_i2c3;
+		i2c210 = &cfam1_i2c10;
+		i2c211 = &cfam1_i2c11;
+		i2c214 = &cfam1_i2c14;
+		i2c215 = &cfam1_i2c15;
+		i2c216 = &cfam1_i2c16;
+		i2c217 = &cfam1_i2c17;
+		i2c300 = &cfam2_i2c0;
+		i2c301 = &cfam2_i2c1;
+		i2c310 = &cfam2_i2c10;
+		i2c311 = &cfam2_i2c11;
+		i2c312 = &cfam2_i2c12;
+		i2c313 = &cfam2_i2c13;
+		i2c314 = &cfam2_i2c14;
+		i2c315 = &cfam2_i2c15;
+		i2c402 = &cfam3_i2c2;
+		i2c403 = &cfam3_i2c3;
+		i2c410 = &cfam3_i2c10;
+		i2c411 = &cfam3_i2c11;
+		i2c414 = &cfam3_i2c14;
+		i2c415 = &cfam3_i2c15;
+		i2c416 = &cfam3_i2c16;
+		i2c417 = &cfam3_i2c17;
+
 		serial4 = &uart5;
 		i2c16 = &i2c2mux0;
 		i2c17 = &i2c2mux1;
@@ -30,6 +63,10 @@ aliases {
 		spi31 = &cfam2_spi1;
 		spi32 = &cfam2_spi2;
 		spi33 = &cfam2_spi3;
+		spi40 = &cfam3_spi0;
+		spi41 = &cfam3_spi1;
+		spi42 = &cfam3_spi2;
+		spi43 = &cfam3_spi3;
 	};
 
 	chosen {
@@ -131,6 +168,73 @@ i2c2mux3: i2c@3 {
 			reg = <3>;
 		};
 	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		/* BMC Card fault LED at the back */
+		bmc-ingraham0 {
+			gpios = <&gpio0 ASPEED_GPIO(H, 1) GPIO_ACTIVE_LOW>;
+		};
+
+		/* Enclosure ID LED at the back */
+		rear-enc-id0 {
+			gpios = <&gpio0 ASPEED_GPIO(H, 2) GPIO_ACTIVE_LOW>;
+		};
+
+		/* Enclosure fault LED at the back */
+		rear-enc-fault0 {
+			gpios = <&gpio0 ASPEED_GPIO(H, 3) GPIO_ACTIVE_LOW>;
+		};
+
+		/* PCIE slot power LED */
+		pcieslot-power {
+			gpios = <&gpio0 ASPEED_GPIO(P, 4) GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <1000>;
+
+		fan0-presence {
+			label = "fan0-presence";
+			gpios = <&pca0 6 GPIO_ACTIVE_LOW>;
+			linux,code = <6>;
+		};
+
+		fan1-presence {
+			label = "fan1-presence";
+			gpios = <&pca0 7 GPIO_ACTIVE_LOW>;
+			linux,code = <7>;
+		};
+
+		fan2-presence {
+			label = "fan2-presence";
+			gpios = <&pca0 8 GPIO_ACTIVE_LOW>;
+			linux,code = <8>;
+		};
+
+		fan3-presence {
+			label = "fan3-presence";
+			gpios = <&pca0 9 GPIO_ACTIVE_LOW>;
+			linux,code = <9>;
+		};
+
+		fan4-presence {
+			label = "fan4-presence";
+			gpios = <&pca0 10 GPIO_ACTIVE_LOW>;
+			linux,code = <10>;
+		};
+
+		fan5-presence {
+			label = "fan5-presence";
+			gpios = <&pca0 11 GPIO_ACTIVE_LOW>;
+			linux,code = <11>;
+		};
+	};
 };
 
 &ehci1 {
@@ -146,7 +250,7 @@ &gpio0 {
 	/*E0-E7*/	"","","","","","","","",
 	/*F0-F7*/	"","","","","","","","",
 	/*G0-G7*/	"","","","","","","","",
-	/*H0-H7*/	"","","","","","","","",
+	/*H0-H7*/	"","bmc-ingraham0","rear-enc-id0","rear-enc-fault0","","","","",
 	/*I0-I7*/	"","","","","","","","",
 	/*J0-J7*/	"","","","","","","","",
 	/*K0-K7*/	"","","","","","","","",
@@ -154,7 +258,7 @@ &gpio0 {
 	/*M0-M7*/	"","","","","","","","",
 	/*N0-N7*/	"","","","","","","","",
 	/*O0-O7*/	"","","","usb-power","","","","",
-	/*P0-P7*/	"","","","","","","","",
+	/*P0-P7*/	"","","","","pcieslot-power","","","",
 	/*Q0-Q7*/	"cfam-reset","","","","","","","",
 	/*R0-R7*/	"","","","","","","","",
 	/*S0-S7*/	"presence-ps0","presence-ps1","presence-ps2","presence-ps3",
@@ -226,6 +330,38 @@ i2c@1800 {
 			reg = <0x1800 0x400>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+
+			cfam0_i2c0: i2c-bus@0 {
+				reg = <0>;	/* OMI01 */
+			};
+
+			cfam0_i2c1: i2c-bus@1 {
+				reg = <1>;	/* OMI23 */
+			};
+
+			cfam0_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam0_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam0_i2c12: i2c-bus@c {
+				reg = <12>;	/* OP4A */
+			};
+
+			cfam0_i2c13: i2c-bus@d {
+				reg = <13>;	/* OP4B */
+			};
+
+			cfam0_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam0_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
 		};
 
 		fsi2spi@1c00 {
@@ -317,8 +453,6 @@ fsi_hub0: hub@3400 {
 			reg = <0x3400 0x400>;
 			#address-cells = <2>;
 			#size-cells = <0>;
-
-			no-scan-on-init;
 		};
 	};
 };
@@ -340,6 +474,38 @@ i2c@1800 {
 			reg = <0x1800 0x400>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+
+			cfam1_i2c2: i2c-bus@2 {
+				reg = <2>;	/* OMI45 */
+			};
+
+			cfam1_i2c3: i2c-bus@3 {
+				reg = <3>;	/* OMI67 */
+			};
+
+			cfam1_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam1_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam1_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam1_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
+
+			cfam1_i2c16: i2c-bus@10 {
+				reg = <16>;	/* OP6A */
+			};
+
+			cfam1_i2c17: i2c-bus@11 {
+				reg = <17>;	/* OP6B */
+			};
 		};
 
 		fsi2spi@1c00 {
@@ -452,6 +618,38 @@ i2c@1800 {
 			reg = <0x1800 0x400>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+
+			cfam2_i2c0: i2c-bus@0 {
+				reg = <0>;	/* OM01 */
+			};
+
+			cfam2_i2c1: i2c-bus@1 {
+				reg = <1>;	/* OM23 */
+			};
+
+			cfam2_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam2_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam2_i2c12: i2c-bus@c {
+				reg = <12>;	/* OP4A */
+			};
+
+			cfam2_i2c13: i2c-bus@d {
+				reg = <13>;	/* OP4B */
+			};
+
+			cfam2_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam2_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
 		};
 
 		fsi2spi@1c00 {
@@ -547,6 +745,150 @@ fsi_hub2: hub@3400 {
 			no-scan-on-init;
 		};
 	};
+
+	cfam@3,0 {
+		reg = <3 0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		chip-id = <3>;
+
+		scom@1000 {
+			compatible = "ibm,fsi2pib";
+			reg = <0x1000 0x400>;
+		};
+
+		i2c@1800 {
+			compatible = "ibm,fsi-i2c-master";
+			reg = <0x1800 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam3_i2c2: i2c-bus@2 {
+				reg = <2>;	/* OM45 */
+			};
+
+			cfam3_i2c3: i2c-bus@3 {
+				reg = <3>;	/* OM67 */
+			};
+
+			cfam3_i2c10: i2c-bus@a {
+				reg = <10>;	/* OP3A */
+			};
+
+			cfam3_i2c11: i2c-bus@b {
+				reg = <11>;	/* OP3B */
+			};
+
+			cfam3_i2c14: i2c-bus@e {
+				reg = <14>;	/* OP5A */
+			};
+
+			cfam3_i2c15: i2c-bus@f {
+				reg = <15>;	/* OP5B */
+			};
+
+			cfam3_i2c16: i2c-bus@10 {
+				reg = <16>;	/* OP6A */
+			};
+
+			cfam3_i2c17: i2c-bus@11 {
+				reg = <17>;	/* OP6B */
+			};
+		};
+
+		fsi2spi@1c00 {
+			compatible = "ibm,fsi2spi";
+			reg = <0x1c00 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			cfam3_spi0: spi@0 {
+				reg = <0x0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam3_spi1: spi@20 {
+				reg = <0x20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam3_spi2: spi@40 {
+				reg = <0x40>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+
+			cfam3_spi3: spi@60 {
+				reg = <0x60>;
+				compatible = "ibm,fsi2spi-restricted";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				eeprom@0 {
+					at25,byte-len = <0x80000>;
+					at25,addr-mode = <4>;
+					at25,page-size = <256>;
+
+					compatible = "atmel,at25";
+					reg = <0>;
+					spi-max-frequency = <1000000>;
+				};
+			};
+		};
+
+		sbefifo@2400 {
+			compatible = "ibm,p9-sbefifo";
+			reg = <0x2400 0x400>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			fsi_occ3: occ {
+				compatible = "ibm,p10-occ";
+			};
+		};
+
+		fsi_hub3: hub@3400 {
+			compatible = "fsi-master-hub";
+			reg = <0x3400 0x400>;
+			#address-cells = <2>;
+			#size-cells = <0>;
+
+			no-scan-on-init;
+		};
+	};
 };
 
 /* Legacy OCC numbering (to get rid of when userspace is fixed) */
@@ -562,6 +904,10 @@ &fsi_occ2 {
 	reg = <3>;
 };
 
+&fsi_occ3 {
+	reg = <4>;
+};
+
 &ibt {
 	status = "okay";
 };
@@ -574,20 +920,64 @@ eeprom@51 {
 		reg = <0x51>;
 	};
 
-	tca9554@40 {
+	tca_pres1: tca9554@20{
 		compatible = "ti,tca9554";
-		reg = <0x40>;
+		reg = <0x20>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
 		gpio-controller;
 		#gpio-cells = <2>;
 
-		smbus0-hog {
-			gpio-hog;
-			gpios = <4 GPIO_ACTIVE_HIGH>;
-			output-high;
-			line-name = "smbus0";
+		gpio-line-names = "",
+			"RUSSEL_FW_I2C_ENABLE_N",
+			"RUSSEL_OPPANEL_PRESENCE_N",
+			"BLYTH_OPPANEL_PRESENCE_N",
+			"CPU_TPM_CARD_PRESENT_N",
+			"DASD_BP2_PRESENT_N",
+			"DASD_BP1_PRESENT_N",
+			"DASD_BP0_PRESENT_N";
+
+		gpio@0 {
+			reg = <0>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@1 {
+			reg = <1>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+			type = <PCA955X_TYPE_GPIO>;
 		};
 	};
-
 };
 
 &i2c1 {
@@ -610,6 +1000,104 @@ power-supply@69 {
 		compatible = "ibm,cffps";
 		reg = <0x69>;
 	};
+
+	pca_pres1: pca9552@61 {
+		compatible = "nxp,pca9552";
+		reg = <0x61>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"SLOT0_PRSNT_EN_RSVD", "SLOT1_PRSNT_EN_RSVD",
+			"SLOT2_PRSNT_EN_RSVD", "SLOT3_PRSNT_EN_RSVD",
+			"SLOT4_PRSNT_EN_RSVD", "SLOT0_EXPANDER_PRSNT_N",
+			"SLOT1_EXPANDER_PRSNT_N", "SLOT2_EXPANDER_PRSNT_N",
+			"SLOT3_EXPANDER_PRSNT_N", "SLOT4_EXPANDER_PRSNT_N",
+			"", "", "", "", "", "";
+
+		gpio@0 {
+			reg = <0>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@1 {
+			reg = <1>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@8 {
+			reg = <8>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@9 {
+			reg = <9>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@10 {
+			reg = <10>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@11 {
+			reg = <11>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@12 {
+			reg = <12>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@13 {
+			reg = <13>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@14 {
+			reg = <14>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@15 {
+			reg = <15>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+	};
 };
 
 &i2c4 {
@@ -723,7 +1211,7 @@ tmp275@48 {
 		reg = <0x48>;
 	};
 
-	max31785@52 {
+	max: max31785@52 {
 		compatible = "maxim,max31785a";
 		reg = <0x52>;
 		#address-cells = <1>;
@@ -752,6 +1240,18 @@ fan3: fan@3 {
 			reg = <3>;
 			tach-pulses = <2>;
 		};
+
+		fan4: fan@4 {
+			compatible = "pmbus-fan";
+			reg = <4>;
+			tach-pulses = <2>;
+		};
+
+		fan5: fan@5 {
+			compatible = "pmbus-fan";
+			reg = <5>;
+			tach-pulses = <2>;
+		};
 	};
 
 	pca0: pca9552@61 {
@@ -1007,6 +1507,104 @@ eeprom@50 {
 		compatible = "atmel,24c128";
 		reg = <0x50>;
 	};
+
+	pca_pres3: pca9552@61 {
+		compatible = "nxp,pca9552";
+		reg = <0x61>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"SLOT6_PRSNT_EN_RSVD", "SLOT7_PRSNT_EN_RSVD",
+			"SLOT8_PRSNT_EN_RSVD", "SLOT9_PRSNT_EN_RSVD",
+			"SLOT10_PRSNT_EN_RSVD", "SLOT11_PRSNT_EN_RSVD",
+			"SLOT6_EXPANDER_PRSNT_N", "SLOT7_EXPANDER_PRSNT_N",
+			"SLOT8_EXPANDER_PRSNT_N", "SLOT9_EXPANDER_PRSNT_N",
+			"SLOT10_EXPANDER_PRSNT_N", "SLOT11_EXPANDER_PRSNT_N",
+			"", "", "", "";
+
+		gpio@0 {
+			reg = <0>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@1 {
+			reg = <1>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@2 {
+			reg = <2>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@3 {
+			reg = <3>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@4 {
+			reg = <4>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@5 {
+			reg = <5>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@6 {
+			reg = <6>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@7 {
+			reg = <7>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@8 {
+			reg = <8>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@9 {
+			reg = <9>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@10 {
+			reg = <10>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@11 {
+			reg = <11>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@12 {
+			reg = <12>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@13 {
+			reg = <13>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@14 {
+			reg = <14>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+
+		gpio@15 {
+			reg = <15>;
+			type = <PCA955X_TYPE_GPIO>;
+		};
+	};
 };
 
 &i2c10 {
@@ -1140,6 +1738,20 @@ flash@0 {
 	};
 };
 
+&wdt1 {
+	aspeed,reset-type = "none";
+	aspeed,external-signal;
+	aspeed,ext-push-pull;
+	aspeed,ext-active-high;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdtrst1_default>;
+};
+
+&wdt2 {
+	status = "okay";
+};
+
 &xdma {
 	status = "okay";
 	memory-region = <&vga_memory>;
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts b/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
index 577c211..15c1f0a 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-mihawk.dts
@@ -383,6 +383,39 @@ fan@11 {
 	};
 };
 
+&gpio {
+	gpio-line-names =
+	/*A0-A7*/	"","cfam-reset","","","","","","",
+	/*B0-B7*/	"","","","","","","","",
+	/*C0-C7*/	"","","","","","","","",
+	/*D0-D7*/	"fsi-enable","","","","","","","",
+	/*E0-E7*/	"","","","","","fsi-mux","fsi-clock","fsi-data",
+	/*F0-F7*/	"","id-button","","","","","air-water","",
+	/*G0-G7*/	"","","","","","","","",
+	/*H0-H7*/	"","","","","","","","",
+	/*I0-I7*/	"","","","","","","","",
+	/*J0-J7*/	"","","checkstop","","","","","",
+	/*K0-K7*/	"","","","","","","","",
+	/*L0-L7*/	"","","","","","","","",
+	/*M0-M7*/	"","","","","","","","",
+	/*N0-N7*/	"","","","","","","","",
+	/*O0-O7*/	"","","","","","","","",
+	/*P0-P7*/	"","","","","","","","",
+	/*Q0-Q7*/	"","","","","","","","",
+	/*R0-R7*/	"","","fsi-trans","","","","","",
+	/*S0-S7*/	"","","","","","","","",
+	/*T0-T7*/	"","","","","","","","",
+	/*U0-U7*/	"","","","","","","","",
+	/*V0-V7*/	"","","","","","","","",
+	/*W0-W7*/	"","","","","","","","",
+	/*X0-X7*/	"","","","","","","","",
+	/*Y0-Y7*/	"","","","","","","","",
+	/*Z0-Z7*/	"presence-ps1","","presence-ps0","","","","","",
+	/*AA0-AA7*/	"led-front-fault","power-button","led-front-id","","","","","",
+	/*AB0-AB7*/	"","","","","","","","",
+	/*AC0-AC7*/	"","","","","","","","";
+};
+
 &fmc {
 	status = "okay";
 	flash@0 {
diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index e7a45ba..c5aeb3c 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -343,59 +343,45 @@ vuart: serial@1e787000 {
 			};
 
 			lpc: lpc@1e789000 {
-				compatible = "aspeed,ast2400-lpc", "simple-mfd";
+				compatible = "aspeed,ast2400-lpc-v2", "simple-mfd", "syscon";
 				reg = <0x1e789000 0x1000>;
+				reg-io-width = <4>;
 
 				#address-cells = <1>;
 				#size-cells = <1>;
 				ranges = <0x0 0x1e789000 0x1000>;
 
-				lpc_bmc: lpc-bmc@0 {
-					compatible = "aspeed,ast2400-lpc-bmc";
-					reg = <0x0 0x80>;
+				lpc_ctrl: lpc-ctrl@80 {
+					compatible = "aspeed,ast2400-lpc-ctrl";
+					reg = <0x80 0x10>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+					status = "disabled";
 				};
 
-				lpc_host: lpc-host@80 {
-					compatible = "aspeed,ast2400-lpc-host", "simple-mfd", "syscon";
-					reg = <0x80 0x1e0>;
-					reg-io-width = <4>;
+				lpc_snoop: lpc-snoop@90 {
+					compatible = "aspeed,ast2400-lpc-snoop";
+					reg = <0x90 0x8>;
+					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+					status = "disabled";
+				};
 
-					#address-cells = <1>;
-					#size-cells = <1>;
-					ranges = <0x0 0x80 0x1e0>;
+				lhc: lhc@a0 {
+					compatible = "aspeed,ast2400-lhc";
+					reg = <0xa0 0x24 0xc8 0x8>;
+				};
 
-					lpc_ctrl: lpc-ctrl@0 {
-						compatible = "aspeed,ast2400-lpc-ctrl";
-						reg = <0x0 0x10>;
-						clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-						status = "disabled";
-					};
+				lpc_reset: reset-controller@98 {
+					compatible = "aspeed,ast2400-lpc-reset";
+					reg = <0x98 0x4>;
+					#reset-cells = <1>;
+				};
 
-					lpc_snoop: lpc-snoop@10 {
-						compatible = "aspeed,ast2400-lpc-snoop";
-						reg = <0x10 0x8>;
-						interrupts = <8>;
-						clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-						status = "disabled";
-					};
-
-					lhc: lhc@20 {
-						compatible = "aspeed,ast2400-lhc";
-						reg = <0x20 0x24 0x48 0x8>;
-					};
-
-					lpc_reset: reset-controller@18 {
-						compatible = "aspeed,ast2400-lpc-reset";
-						reg = <0x18 0x4>;
-						#reset-cells = <1>;
-					};
-
-					ibt: ibt@c0  {
-						compatible = "aspeed,ast2400-ibt-bmc";
-						reg = <0xc0 0x18>;
-						interrupts = <8>;
-						status = "disabled";
-					};
+				ibt: ibt@140 {
+					compatible = "aspeed,ast2400-ibt-bmc";
+					reg = <0x140 0x18>;
+					interrupts = <8>;
+					status = "disabled";
 				};
 			};
 
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 2193052..d733c1f 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -434,91 +434,74 @@ vuart: serial@1e787000 {
 			};
 
 			lpc: lpc@1e789000 {
-				compatible = "aspeed,ast2500-lpc", "simple-mfd";
+				compatible = "aspeed,ast2500-lpc-v2", "simple-mfd", "syscon";
 				reg = <0x1e789000 0x1000>;
+				reg-io-width = <4>;
 
 				#address-cells = <1>;
 				#size-cells = <1>;
 				ranges = <0x0 0x1e789000 0x1000>;
 
-				lpc_bmc: lpc-bmc@0 {
-					compatible = "aspeed,ast2500-lpc-bmc", "simple-mfd", "syscon";
-					reg = <0x0 0x80>;
-					reg-io-width = <4>;
-
-					#address-cells = <1>;
-					#size-cells = <1>;
-					ranges = <0x0 0x0 0x80>;
-
-					kcs1: kcs@24 {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
-						interrupts = <8>;
-						status = "disabled";
-					};
-					kcs2: kcs@28 {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
-						interrupts = <8>;
-						status = "disabled";
-					};
-					kcs3: kcs@2c {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
-						interrupts = <8>;
-						status = "disabled";
-					};
+				kcs1: kcs@24 {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
+					interrupts = <8>;
+					status = "disabled";
 				};
 
-				lpc_host: lpc-host@80 {
-					compatible = "aspeed,ast2500-lpc-host", "simple-mfd", "syscon";
-					reg = <0x80 0x1e0>;
-					reg-io-width = <4>;
+				kcs2: kcs@28 {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
+					interrupts = <8>;
+					status = "disabled";
+				};
 
-					#address-cells = <1>;
-					#size-cells = <1>;
-					ranges = <0x0 0x80 0x1e0>;
+				kcs3: kcs@2c {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
+					interrupts = <8>;
+					status = "disabled";
+				};
 
-					kcs4: kcs@94 {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x94 0x1>, <0x98 0x1>, <0x9c 0x1>;
-						interrupts = <8>;
-						status = "disabled";
-					};
+				kcs4: kcs@114 {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x114 0x1>, <0x118 0x1>, <0x11c 0x1>;
+					interrupts = <8>;
+					status = "disabled";
+				};
 
-					lpc_ctrl: lpc-ctrl@0 {
-						compatible = "aspeed,ast2500-lpc-ctrl";
-						reg = <0x0 0x10>;
-						clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-						status = "disabled";
-					};
+				lpc_ctrl: lpc-ctrl@80 {
+					compatible = "aspeed,ast2500-lpc-ctrl";
+					reg = <0x80 0x10>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+					status = "disabled";
+				};
 
-					lpc_snoop: lpc-snoop@10 {
-						compatible = "aspeed,ast2500-lpc-snoop";
-						reg = <0x10 0x8>;
-						interrupts = <8>;
-						clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-						status = "disabled";
-					};
+				lpc_snoop: lpc-snoop@90 {
+					compatible = "aspeed,ast2500-lpc-snoop";
+					reg = <0x90 0x8>;
+					interrupts = <8>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+					status = "disabled";
+				};
 
-					lpc_reset: reset-controller@18 {
-						compatible = "aspeed,ast2500-lpc-reset";
-						reg = <0x18 0x4>;
-						#reset-cells = <1>;
-					};
+				lpc_reset: reset-controller@98 {
+					compatible = "aspeed,ast2500-lpc-reset";
+					reg = <0x98 0x4>;
+					#reset-cells = <1>;
+				};
 
-					lhc: lhc@20 {
-						compatible = "aspeed,ast2500-lhc";
-						reg = <0x20 0x24 0x48 0x8>;
-					};
+				lhc: lhc@a0 {
+					compatible = "aspeed,ast2500-lhc";
+					reg = <0xa0 0x24 0xc8 0x8>;
+				};
 
 
-					ibt: ibt@c0 {
-						compatible = "aspeed,ast2500-ibt-bmc";
-						reg = <0xc0 0x18>;
-						interrupts = <8>;
-						status = "disabled";
-					};
+				ibt: ibt@140 {
+					compatible = "aspeed,ast2500-ibt-bmc";
+					reg = <0x140 0x18>;
+					interrupts = <8>;
+					status = "disabled";
 				};
 			};
 
diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi
index 3ee470c..f96607b 100644
--- a/arch/arm/boot/dts/aspeed-g6.dtsi
+++ b/arch/arm/boot/dts/aspeed-g6.dtsi
@@ -460,91 +460,74 @@ wdt4: watchdog@1e7850c0 {
 			};
 
 			lpc: lpc@1e789000 {
-				compatible = "aspeed,ast2600-lpc", "simple-mfd";
+				compatible = "aspeed,ast2600-lpc-v2", "simple-mfd", "syscon";
 				reg = <0x1e789000 0x1000>;
+				reg-io-width = <4>;
 
 				#address-cells = <1>;
 				#size-cells = <1>;
 				ranges = <0x0 0x1e789000 0x1000>;
 
-				lpc_bmc: lpc-bmc@0 {
-					compatible = "aspeed,ast2600-lpc-bmc", "simple-mfd", "syscon";
-					reg = <0x0 0x80>;
-					reg-io-width = <4>;
-
-					#address-cells = <1>;
-					#size-cells = <1>;
-					ranges = <0x0 0x0 0x80>;
-
-					kcs1: kcs@24 {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
-						interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
-						kcs_chan = <1>;
-						status = "disabled";
-					};
-					kcs2: kcs@28 {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
-						interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
-						status = "disabled";
-					};
-					kcs3: kcs@2c {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
-						interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
-						status = "disabled";
-					};
+				kcs1: kcs@24 {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x24 0x1>, <0x30 0x1>, <0x3c 0x1>;
+					interrupts = <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>;
+					kcs_chan = <1>;
+					status = "disabled";
 				};
 
-				lpc_host: lpc-host@80 {
-					compatible = "aspeed,ast2600-lpc-host", "simple-mfd", "syscon";
-					reg = <0x80 0x1e0>;
-					reg-io-width = <4>;
+				kcs2: kcs@28 {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x28 0x1>, <0x34 0x1>, <0x40 0x1>;
+					interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+					status = "disabled";
+				};
 
-					#address-cells = <1>;
-					#size-cells = <1>;
-					ranges = <0x0 0x80 0x1e0>;
+				kcs3: kcs@2c {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x2c 0x1>, <0x38 0x1>, <0x44 0x1>;
+					interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
+					status = "disabled";
+				};
 
-					kcs4: kcs@94 {
-						compatible = "aspeed,ast2500-kcs-bmc-v2";
-						reg = <0x94 0x1>, <0x98 0x1>, <0x9c 0x1>;
-						interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
-						status = "disabled";
-					};
+				kcs4: kcs@114 {
+					compatible = "aspeed,ast2500-kcs-bmc-v2";
+					reg = <0x114 0x1>, <0x118 0x1>, <0x11c 0x1>;
+					interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>;
+					status = "disabled";
+				};
 
-					lpc_ctrl: lpc-ctrl@0 {
-						compatible = "aspeed,ast2600-lpc-ctrl";
-						reg = <0x0 0x80>;
-						clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-						status = "disabled";
-					};
+				lpc_ctrl: lpc-ctrl@80 {
+					compatible = "aspeed,ast2600-lpc-ctrl";
+					reg = <0x80 0x80>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+					status = "disabled";
+				};
 
-					lpc_snoop: lpc-snoop@0 {
-						compatible = "aspeed,ast2600-lpc-snoop";
-						reg = <0x0 0x80>;
-						interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
-						clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
-						status = "disabled";
-					};
+				lpc_snoop: lpc-snoop@80 {
+					compatible = "aspeed,ast2600-lpc-snoop";
+					reg = <0x80 0x80>;
+					interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
+					clocks = <&syscon ASPEED_CLK_GATE_LCLK>;
+					status = "disabled";
+				};
 
-					lhc: lhc@20 {
-						compatible = "aspeed,ast2600-lhc";
-						reg = <0x20 0x24 0x48 0x8>;
-					};
+				lhc: lhc@a0 {
+					compatible = "aspeed,ast2600-lhc";
+					reg = <0xa0 0x24 0xc8 0x8>;
+				};
 
-					lpc_reset: reset-controller@18 {
-						compatible = "aspeed,ast2600-lpc-reset";
-						reg = <0x18 0x4>;
-						#reset-cells = <1>;
-					};
+				lpc_reset: reset-controller@98 {
+					compatible = "aspeed,ast2600-lpc-reset";
+					reg = <0x98 0x4>;
+					#reset-cells = <1>;
+				};
 
-					ibt: ibt@c0 {
-						compatible = "aspeed,ast2600-ibt-bmc";
-						reg = <0xc0 0x18>;
-						interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
-						status = "disabled";
-					};
+				ibt: ibt@140 {
+					compatible = "aspeed,ast2600-ibt-bmc";
+					reg = <0x140 0x18>;
+					interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
+					status = "disabled";
 				};
 			};
 
diff --git a/arch/arm/boot/dts/nuvoton-npcm730-gbs.dts b/arch/arm/boot/dts/nuvoton-npcm730-gbs.dts
new file mode 100644
index 0000000..eb6eb21
--- /dev/null
+++ b/arch/arm/boot/dts/nuvoton-npcm730-gbs.dts
@@ -0,0 +1,1135 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Quanta Computer Inc. George.Hung@quantatw.com
+
+/dts-v1/;
+#include "nuvoton-npcm730.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Quanta GBS Board (Device Tree)";
+	compatible = "quanta,gbs-bmc","nuvoton,npcm730";
+
+	aliases {
+		ethernet1 = &gmac0;
+		serial0 = &serial0;
+		serial1 = &serial1;
+		serial2 = &serial2;
+		serial3 = &serial3;
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+		i2c6 = &i2c6;
+		i2c7 = &i2c7;
+		i2c8 = &i2c8;
+		i2c9 = &i2c9;
+		i2c10 = &i2c10;
+		i2c11 = &i2c11;
+		i2c12 = &i2c12;
+		i2c13 = &i2c13;
+		i2c14 = &i2c14;
+		i2c15 = &i2c15;
+		i2c16 = &i2c0_slotPE0_0;
+		i2c17 = &i2c0_slotPE1_1;
+		i2c18 = &i2c0_slotUSB_2;
+		i2c19 = &i2c0_3;
+		i2c20 = &i2c5_i2cool_0;
+		i2c21 = &i2c5_i2cool_1;
+		i2c22 = &i2c5_i2cool_2;
+		i2c23 = &i2c5_hsbp_fru_3;
+		i2c24 = &i2c6_u2_15_0;
+		i2c25 = &i2c6_u2_14_1;
+		i2c26 = &i2c6_u2_13_2;
+		i2c27 = &i2c6_u2_12_3;
+		i2c28 = &i2c7_u2_11_0;
+		i2c29 = &i2c7_u2_10_1;
+		i2c30 = &i2c7_u2_9_2;
+		i2c31 = &i2c7_u2_8_3;
+		i2c32 = &i2c9_vddcr_cpu;
+		i2c33 = &i2c9_vddcr_soc;
+		i2c34 = &i2c9_vddio_efgh;
+		i2c35 = &i2c9_vddio_abcd;
+		i2c36 = &i2c10_u2_7_0;
+		i2c37 = &i2c10_u2_6_1;
+		i2c38 = &i2c10_u2_5_2;
+		i2c39 = &i2c10_u2_4_3;
+		i2c40 = &i2c11_clk_buf0_0;
+		i2c41 = &i2c11_clk_buf1_1;
+		i2c42 = &i2c11_clk_buf2_2;
+		i2c43 = &i2c11_clk_buf3_3;
+		i2c44 = &i2c14_u2_3_0;
+		i2c45 = &i2c14_u2_2_1;
+		i2c46 = &i2c14_u2_1_2;
+		i2c47 = &i2c14_u2_0_3;
+		fiu0 = &fiu0;
+		fiu1 = &fiu3;
+	};
+
+	chosen {
+		stdout-path = &serial0;
+	};
+
+	memory {
+		reg = <0 0x40000000>;
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		sas-cable0 {
+			label = "sas-cable0";
+			gpios = <&gpio2 9 GPIO_ACTIVE_LOW>;
+			linux,code = <73>;
+		};
+
+		sas-cable1 {
+			label = "sas-cable1";
+			gpios = <&gpio2 8 GPIO_ACTIVE_LOW>;
+			linux,code = <72>;
+		};
+
+		sas-cable2 {
+			label = "sas-cable2";
+			gpios = <&gpio2 7 GPIO_ACTIVE_LOW>;
+			linux,code = <71>;
+		};
+
+		sas-cable3 {
+			label = "sas-cable3";
+			gpios = <&gpio2 6 GPIO_ACTIVE_LOW>;
+			linux,code = <70>;
+		};
+
+		sata0 {
+			label = "sata0";
+			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
+			linux,code = <5>;
+		};
+
+		hsbp-cable {
+			label = "hsbp-cable";
+			gpios = <&gpio1 25 GPIO_ACTIVE_LOW>;
+			linux,code = <57>;
+		};
+
+		fanbd-cable {
+			label = "fanbd-cable";
+			gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
+			linux,code = <58>;
+		};
+
+		bp12v-cable {
+			label = "bp12v-cable";
+			gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>;
+			linux,code = <69>;
+		};
+
+		pe-slot0 {
+			label = "pe-slot0";
+			gpios = <&gpio3 24 GPIO_ACTIVE_LOW>;
+			linux,code = <120>;
+		};
+
+		pe-slot1 {
+			label = "pe-slot1";
+			gpios = <&gpio3 25 GPIO_ACTIVE_LOW>;
+			linux,code = <121>;
+		};
+	};
+
+	iio-hwmon {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 1>, <&adc 2>;
+	};
+
+	iio-hwmon-battery {
+		compatible = "iio-hwmon";
+		io-channels = <&adc 0>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		heartbeat { /* gpio153 */
+			gpios = <&gpio4 25 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		attention { /* gpio215 */
+			gpios = <&gpio6 23 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+		};
+
+		sys_boot_status { /* gpio216 */
+			gpios = <&gpio6 24 GPIO_ACTIVE_HIGH>;
+			default-state = "keep";
+			retain-state-shutdown;
+		};
+
+		bmc_fault { /* gpio217 */
+			gpios = <&gpio6 25 GPIO_ACTIVE_HIGH>;
+			default-state = "off";
+			linux,default-trigger = "panic";
+			panic-indicator;
+		};
+
+		led_u2_0_locate {
+			gpios = <&pca9535_ledlocate 3 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_1_locate {
+			gpios = <&pca9535_ledlocate 2 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_2_locate {
+			gpios = <&pca9535_ledlocate 1 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_3_locate {
+			gpios = <&pca9535_ledlocate 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_4_locate {
+			gpios = <&pca9535_ledlocate 7 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_5_locate {
+			gpios = <&pca9535_ledlocate 6 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_6_locate {
+			gpios = <&pca9535_ledlocate 5 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_7_locate {
+			gpios = <&pca9535_ledlocate 4 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_8_locate {
+			gpios = <&pca9535_ledlocate 11 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_9_locate {
+			gpios = <&pca9535_ledlocate 10 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_10_locate {
+			gpios = <&pca9535_ledlocate 9 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_11_locate {
+			gpios = <&pca9535_ledlocate 8 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_12_locate {
+			gpios = <&pca9535_ledlocate 15 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_13_locate {
+			gpios = <&pca9535_ledlocate 14 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_14_locate {
+			gpios = <&pca9535_ledlocate 13 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_15_locate {
+			gpios = <&pca9535_ledlocate 12 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_0_fault {
+			gpios = <&pca9535_ledfault 3 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_1_fault {
+			gpios = <&pca9535_ledfault 2 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_2_fault {
+			gpios = <&pca9535_ledfault 1 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_3_fault {
+			gpios = <&pca9535_ledfault 0 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_4_fault {
+			gpios = <&pca9535_ledfault 7 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_5_fault {
+			gpios = <&pca9535_ledfault 6 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_6_fault {
+			gpios = <&pca9535_ledfault 5 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_7_fault {
+			gpios = <&pca9535_ledfault 4 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_8_fault {
+			gpios = <&pca9535_ledfault 11 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_9_fault {
+			gpios = <&pca9535_ledfault 10 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_10_fault {
+			gpios = <&pca9535_ledfault 9 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_11_fault {
+			gpios = <&pca9535_ledfault 8 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_12_fault {
+			gpios = <&pca9535_ledfault 15 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_13_fault {
+			gpios = <&pca9535_ledfault 14 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_14_fault {
+			gpios = <&pca9535_ledfault 13 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+		led_u2_15_fault {
+			gpios = <&pca9535_ledfault 12 GPIO_ACTIVE_LOW>;
+			default-state = "off";
+		};
+
+	};
+
+	seven-seg-disp {
+		compatible = "seven-seg-gpio-dev";
+		refresh-interval-ms = /bits/ 16 <600>;
+		clock-gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
+		data-gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
+		clear-gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+	};
+
+	pcie-slot {
+		pcie1: pcie-slot@1 {
+			label = "PE0";
+		};
+		pcie2: pcie-slot@2 {
+			label = "PE1";
+		};
+	};
+};
+
+&fiu0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0cs1_pins>;
+	status = "okay";
+	spi-nor@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+		spi-max-frequency = <20000000>;
+		spi-rx-bus-width = <2>;
+		label = "bmc";
+		partitions@80000000 {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			u-boot@0 {
+				label = "u-boot";
+				reg = <0x0000000 0xf0000>;
+			};
+			image-descriptor@f0000 {
+				label = "image-descriptor";
+				reg = <0xf0000 0x10000>;
+			};
+			hoth-update@100000 {
+				label = "hoth-update";
+				reg = <0x100000 0x100000>;
+			};
+			kernel@200000 {
+				label = "kernel";
+				reg = <0x200000 0x500000>;
+			};
+			rofs@700000 {
+				label = "rofs";
+				reg = <0x700000 0x35f0000>;
+			};
+			rwfs@3cf0000 {
+				label = "rwfs";
+				reg = <0x3cf0000 0x300000>;
+			};
+			hoth-mailbox@3ff0000 {
+				label = "hoth-mailbox";
+				reg = <0x3ff0000 0x10000>;
+			};
+		};
+	};
+};
+
+&fiu3 {
+	pinctrl-0 = <&spi3_pins>, <&spi3cs1_pins>;
+	status = "okay";
+
+	spi-nor@0 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0>;
+		spi-max-frequency = <50000000>;
+		spi-rx-bus-width = <2>;
+		m25p,fast-read;
+		label = "pnor";
+	};
+	spi-nor@1 {
+		compatible = "jedec,spi-nor";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <1>;
+		spi-max-frequency = <50000000>;
+		spi-rx-bus-width = <2>;
+		m25p,fast-read;
+	};
+};
+
+&gcr {
+	serial_port_mux: uart-mux-controller {
+		compatible = "mmio-mux";
+		#mux-control-cells = <1>;
+		mux-reg-masks = <0x38 0x07>;
+		idle-states = <2>; /* Serial port mode 3 (takeover) */
+	};
+
+	uart1_mode_mux: uart1-mode-mux-controller {
+		compatible = "mmio-mux";
+		#mux-control-cells = <1>;
+		mux-reg-masks = <0x64 0x01000000>;
+		idle-states = <0>; /* Set UART1 mode to normal (follow SPMOD) */
+	};
+};
+
+&gmac0 {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	snps,eee-force-disable;
+};
+
+&ehci1 {
+	status = "okay";
+};
+
+&watchdog1 {
+	status = "okay";
+};
+
+&rng {
+	status = "okay";
+};
+
+&serial0 {
+	status = "okay";
+};
+
+&serial1 {
+	status = "okay";
+};
+
+&serial2 {
+	status = "okay";
+};
+
+&serial3 {
+	status = "okay";
+};
+
+&adc {
+	#io-channel-cells = <1>;
+	status = "okay";
+};
+
+&lpc_kcs {
+	kcs1: kcs1@0 {
+		status = "okay";
+	};
+
+	kcs2: kcs2@0 {
+		status = "okay";
+	};
+
+	kcs3: kcs3@0 {
+		status = "okay";
+	};
+};
+
+&spi1 {
+	cs-gpios = <&gpio4 19 GPIO_ACTIVE_HIGH>; /* dummy - gpio147 */
+	pinctrl-names = "default";
+	pinctrl-0 = <&gpio224ol_pins &gpio227o_pins
+			&gpio228_pins>;
+	status = "okay";
+
+	jtag_master@0 {
+		compatible = "nuvoton,npcm750-jtag-master";
+		spi-max-frequency = <25000000>;
+		reg = <0>;
+		status = "okay";
+
+		pinctrl-names = "pspi", "gpio";
+		pinctrl-0 = <&pspi2_pins>;
+		pinctrl-1 = <&gpio224ol_pins &gpio227o_pins
+				&gpio228_pins>;
+
+		tck-gpios = <&gpio7 0 GPIO_ACTIVE_HIGH>;
+		tdi-gpios = <&gpio7 3 GPIO_ACTIVE_HIGH>;
+		tdo-gpios = <&gpio7 4 GPIO_ACTIVE_HIGH>;
+		tms-gpios = <&gpio7 6 GPIO_ACTIVE_HIGH>;
+	};
+};
+
+&i2c0 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@71 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+		i2c-mux-idle-disconnect;
+		reset-gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
+
+		i2c0_slotPE0_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			pcie-slot = &pcie1;
+		};
+
+		i2c0_slotPE1_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			pcie-slot = &pcie2;
+		};
+
+		i2c0_slotUSB_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		i2c0_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	pca9535_ifdet: pca9535-ifdet@24 {
+		compatible = "nxp,pca9535";
+		reg = <0x24>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	pca9535_pwren: pca9535-pwren@20 {
+		compatible = "nxp,pca9535";
+		reg = <0x20>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"pwr_u2_3_en","pwr_u2_2_en",
+			"pwr_u2_1_en","pwr_u2_0_en",
+			"pwr_u2_7_en","pwr_u2_6_en",
+			"pwr_u2_5_en","pwr_u2_4_en",
+			"pwr_u2_11_en","pwr_u2_10_en",
+			"pwr_u2_9_en","pwr_u2_8_en",
+			"pwr_u2_15_en","pwr_u2_14_en",
+			"pwr_u2_13_en","pwr_u2_12_en";
+	};
+
+	pca9535_pwrgd: pca9535-pwrgd@21 {
+		compatible = "nxp,pca9535";
+		reg = <0x21>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	pca9535_ledlocate: pca9535-ledlocate@22 {
+		compatible = "nxp,pca9535";
+		reg = <0x22>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+	};
+
+	pca9535_ledfault: pca9535-ledfault@23 {
+		compatible = "nxp,pca9535";
+		reg = <0x23>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+	};
+
+	pca9535_pwrdisable: pca9535-pwrdisable@25 {
+		compatible = "nxp,pca9535";
+		reg = <0x25>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"u2_3_pwr_dis","u2_2_pwr_dis",
+			"u2_1_pwr_dis","u2_0_pwr_dis",
+			"u2_7_pwr_dis","u2_6_pwr_dis",
+			"u2_5_pwr_dis","u2_4_pwr_dis",
+			"u2_11_pwr_dis","u2_10_pwr_dis",
+			"u2_9_pwr_dis","u2_8_pwr_dis",
+			"u2_15_pwr_dis","u2_14_pwr_dis",
+			"u2_13_pwr_dis","u2_12_pwr_dis";
+	};
+
+	pca9535_perst: pca9535-perst@26 {
+		compatible = "nxp,pca9535";
+		reg = <0x26>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio-line-names =
+			"u2_15_perst","u2_14_perst",
+			"u2_13_perst","u2_12_perst",
+			"u2_11_perst","u2_10_perst",
+			"u2_9_perst","u2_8_perst",
+			"u2_7_perst","u2_6_perst",
+			"u2_5_perst","u2_4_perst",
+			"u2_3_perst","u2_2_perst",
+			"u2_1_perst","u2_0_perst";
+	};
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	sbtsi@4c {
+		compatible = "amd,sbtsi";
+		reg = <0x4c>;
+	};
+};
+
+&i2c5 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	mb_fru@50 {
+		compatible = "atmel,24c64";
+		reg = <0x50>;
+	};
+
+	i2c-switch@71 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+		i2c-mux-idle-disconnect;
+
+		i2c5_i2cool_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			max31725@54 {
+				compatible = "maxim,max31725";
+				reg = <0x54>;
+				status = "okay";
+			};
+		};
+
+		i2c5_i2cool_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			max31725@55 {
+				compatible = "maxim,max31725";
+				reg = <0x55>;
+				status = "okay";
+			};
+		};
+
+		i2c5_i2cool_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			max31725@5d {
+				compatible = "maxim,max31725";
+				reg = <0x5d>;
+				status = "okay";
+			};
+			fan_fru@51 {
+				compatible = "atmel,24c64";
+				reg = <0x51>;
+			};
+		};
+
+		i2c5_hsbp_fru_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			hsbp_fru@52 {
+				compatible = "atmel,24c64";
+				reg = <0x52>;
+				status = "okay";
+			};
+		};
+	};
+};
+
+&i2c6 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@73 {
+		compatible = "nxp,pca9545";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x73>;
+		i2c-mux-idle-disconnect;
+
+		i2c6_u2_15_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		i2c6_u2_14_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+		i2c6_u2_13_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		i2c6_u2_12_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&i2c7 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@72 {
+		compatible = "nxp,pca9545";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x72>;
+		i2c-mux-idle-disconnect;
+
+		i2c7_u2_11_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		i2c7_u2_10_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+		i2c7_u2_9_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		i2c7_u2_8_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&i2c8 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c8_adm1272: adm1272@10 {
+		compatible = "adi,adm1272";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x10>;
+		shunt-resistor-micro-ohms = <300>;
+	};
+};
+
+&i2c9 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@71 {
+		compatible = "nxp,pca9546";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+		i2c-mux-idle-disconnect;
+		reset-gpios = <&gpio2 22 GPIO_ACTIVE_LOW>;
+
+		i2c9_vddcr_cpu: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+			vrm@60 {
+				compatible = "isil,isl68137";
+				reg = <0x60>;
+			};
+		};
+
+		i2c9_vddcr_soc: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+			vrm@61 {
+				compatible = "isil,isl68137";
+				reg = <0x61>;
+			};
+		};
+
+		i2c9_vddio_efgh: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+			vrm@63 {
+				compatible = "isil,isl68137";
+				reg = <0x63>;
+			};
+		};
+
+		i2c9_vddio_abcd: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+			vrm@45 {
+				compatible = "isil,isl68137";
+				reg = <0x45>;
+			};
+		};
+	};
+};
+
+&i2c10 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@71 {
+		compatible = "nxp,pca9545";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+		i2c-mux-idle-disconnect;
+
+		i2c10_u2_7_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		i2c10_u2_6_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+		i2c10_u2_5_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		i2c10_u2_4_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&i2c11 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@76 {
+		compatible = "nxp,pca9545";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x76>;
+		i2c-mux-idle-disconnect;
+
+		i2c11_clk_buf0_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		i2c11_clk_buf1_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+		i2c11_clk_buf2_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		i2c11_clk_buf3_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&i2c12 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	max34451@4e {
+		compatible = "maxim,max34451";
+		reg = <0x4e>;
+	};
+	vrm@5d {
+		compatible = "isil,isl68137";
+		reg = <0x5d>;
+	};
+	vrm@5e {
+		compatible = "isil,isl68137";
+		reg = <0x5e>;
+	};
+};
+
+&i2c13 {
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&i2c14 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	i2c-switch@70 {
+		compatible = "nxp,pca9545";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x70>;
+		i2c-mux-idle-disconnect;
+
+		i2c14_u2_3_0: i2c@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0>;
+		};
+
+		i2c14_u2_2_1: i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+		};
+
+		i2c14_u2_1_2: i2c@2 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <2>;
+		};
+
+		i2c14_u2_0_3: i2c@3 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <3>;
+		};
+	};
+};
+
+&pwm_fan {
+	pinctrl-names = "default";
+	pinctrl-0 = <
+		&pwm0_pins &pwm1_pins
+		&pwm2_pins &pwm3_pins
+		&pwm4_pins
+		&fanin0_pins &fanin1_pins
+		&fanin2_pins &fanin3_pins
+		&fanin4_pins
+	>;
+	status = "okay";
+
+	fan@0 {
+		reg = <0x00>;
+		fan-tach-ch = /bits/ 8 <0x00>;
+	};
+	fan@1 {
+		reg = <0x01>;
+		fan-tach-ch = /bits/ 8 <0x01>;
+	};
+	fan@2 {
+		reg = <0x02>;
+		fan-tach-ch = /bits/ 8 <0x02>;
+	};
+	fan@3 {
+		reg = <0x04>;
+		fan-tach-ch = /bits/ 8 <0x04>;
+	};
+	fan@4 {
+		reg = <0x03>;
+		fan-tach-ch = /bits/ 8 <0x03>;
+	};
+};
+
+&pinctrl {
+	pinctrl-names = "default";
+
+	gpio0: gpio@f0010000 {
+		/* POWER_OUT=gpio07, RESET_OUT=gpio06, PS_PWROK=gpio13 */
+		gpio-line-names =
+		/*0-31*/
+		"","","","","","","RESET_OUT","POWER_OUT",
+		"","","","","","PS_PWROK","","",
+		"","","","","","","","",
+		"","","","","","","","";
+	};
+	gpio1: gpio@f0011000 {
+		/* SIO_POWER_GOOD=gpio59 */
+		gpio-line-names =
+		/*32-63*/
+		"","","","","","","","",
+		"","","","","","","","",
+		"","","","","","","","",
+		"","","","SIO_POWER_GOOD","","","","";
+	};
+	gpio2: gpio@f0012000 {
+		bmc_usb_mux_oe_n {
+			gpio-hog;
+			gpios = <25 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "bmc-usb-mux-oe-n";
+		};
+		bmc_usb_mux_sel {
+			gpio-hog;
+			gpios = <26 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "bmc-usb-mux-sel";
+		};
+		bmc_usb2517_reset_n {
+			gpio-hog;
+			gpios = <27 GPIO_ACTIVE_LOW>;
+			output-low;
+			line-name = "bmc-usb2517-reset-n";
+		};
+	};
+	gpio3: gpio@f0013000 {
+		assert_cpu0_reset {
+			gpio-hog;
+			gpios = <14 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "assert-cpu0-reset";
+		};
+		assert_pwrok_cpu0_n {
+			gpio-hog;
+			gpios = <15 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "assert-pwrok-cpu0-n";
+		};
+		assert_cpu0_prochot {
+			gpio-hog;
+			gpios = <16 GPIO_ACTIVE_HIGH>;
+			output-low;
+			line-name = "assert-cpu0-prochot";
+		};
+	};
+	gpio4: gpio@f0014000 {
+		/* POST_COMPLETE=gpio143 */
+		gpio-line-names =
+			/*128-159*/
+			"","","","","","","","",
+			"","","","","","","","POST_COMPLETE",
+			"","","","","","","","",
+			"","","","","","","","";
+	};
+	gpio5: gpio@f0015000 {
+		/* POWER_BUTTON=gpio177 */
+		gpio-line-names =
+			/*160-191*/
+			"","","","","","","","",
+			"","","","","","","","",
+			"","POWER_BUTTON","","","","","","",
+			"","","","","","","","";
+	};
+	gpio6: gpio@f0016000 {
+		/* SIO_S5=gpio199, RESET_BUTTON=gpio203 */
+		gpio-line-names =
+			/*192-223*/
+			"","","","","","","","SIO_S5",
+			"","","","RESET_BUTTON","","","","",
+			"","","","","","","","",
+			"","","","","","","","";
+	};
+
+	gpio224ol_pins: gpio224ol-pins {
+		pins = "GPIO224/SPIXCK";
+		bias-disable;
+		output-low;
+	};
+	gpio227o_pins: gpio227o-pins {
+		pins = "GPIO227/nSPIXCS0";
+		bias-disable;
+		output-high;
+	};
+	gpio228_pins: gpio228-pins {
+		pins = "GPIO228/nSPIXCS1";
+		bias-disable;
+		input-enable;
+	};
+};
diff --git a/drivers/char/ipmi/kcs_bmc_aspeed.c b/drivers/char/ipmi/kcs_bmc_aspeed.c
index a140203..eefe362 100644
--- a/drivers/char/ipmi/kcs_bmc_aspeed.c
+++ b/drivers/char/ipmi/kcs_bmc_aspeed.c
@@ -27,7 +27,6 @@
 
 #define KCS_CHANNEL_MAX     4
 
-/* mapped to lpc-bmc@0 IO space */
 #define LPC_HICR0            0x000
 #define     LPC_HICR0_LPC3E          BIT(7)
 #define     LPC_HICR0_LPC2E          BIT(6)
@@ -52,15 +51,13 @@
 #define LPC_STR1             0x03C
 #define LPC_STR2             0x040
 #define LPC_STR3             0x044
-
-/* mapped to lpc-host@80 IO space */
-#define LPC_HICRB            0x080
+#define LPC_HICRB            0x100
 #define     LPC_HICRB_IBFIF4         BIT(1)
 #define     LPC_HICRB_LPC4E          BIT(0)
-#define LPC_LADR4            0x090
-#define LPC_IDR4             0x094
-#define LPC_ODR4             0x098
-#define LPC_STR4             0x09C
+#define LPC_LADR4            0x110
+#define LPC_IDR4             0x114
+#define LPC_ODR4             0x118
+#define LPC_STR4             0x11C
 
 struct aspeed_kcs_bmc {
 	struct regmap *map;
@@ -348,12 +345,20 @@ static int aspeed_kcs_probe(struct platform_device *pdev)
 	struct device_node *np;
 	int rc;
 
-	np = pdev->dev.of_node;
+	np = dev->of_node->parent;
+	if (!of_device_is_compatible(np, "aspeed,ast2400-lpc-v2") &&
+	    !of_device_is_compatible(np, "aspeed,ast2500-lpc-v2") &&
+	    !of_device_is_compatible(np, "aspeed,ast2600-lpc-v2")) {
+		dev_err(dev, "unsupported LPC device binding\n");
+		return -ENODEV;
+	}
+
+	np = dev->of_node;
 	if (of_device_is_compatible(np, "aspeed,ast2400-kcs-bmc") ||
-			of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc"))
+	    of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc"))
 		kcs_bmc = aspeed_kcs_probe_of_v1(pdev);
 	else if (of_device_is_compatible(np, "aspeed,ast2400-kcs-bmc-v2") ||
-			of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc-v2"))
+		 of_device_is_compatible(np, "aspeed,ast2500-kcs-bmc-v2"))
 		kcs_bmc = aspeed_kcs_probe_of_v2(pdev);
 	else
 		return -EINVAL;
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
index 0cab4c2..996ebcb 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
@@ -60,7 +60,7 @@
 #define COND2		{ ASPEED_IP_SCU, SCU94, GENMASK(1, 0), 0, 0 }
 
 /* LHCR0 is offset from the end of the H8S/2168-compatible registers */
-#define LHCR0		0x20
+#define LHCR0		0xa0
 #define GFX064		0x64
 
 #define B14 0
@@ -2648,14 +2648,19 @@ static struct regmap *aspeed_g5_acquire_regmap(struct aspeed_pinmux_data *ctx,
 	}
 
 	if (ip == ASPEED_IP_LPC) {
-		struct device_node *node;
+		struct device_node *np;
 		struct regmap *map;
 
-		node = of_parse_phandle(ctx->dev->of_node,
+		np = of_parse_phandle(ctx->dev->of_node,
 					"aspeed,external-nodes", 1);
-		if (node) {
-			map = syscon_node_to_regmap(node->parent);
-			of_node_put(node);
+		if (np) {
+			if (!of_device_is_compatible(np->parent, "aspeed,ast2400-lpc-v2") &&
+			    !of_device_is_compatible(np->parent, "aspeed,ast2500-lpc-v2") &&
+			    !of_device_is_compatible(np->parent, "aspeed,ast2600-lpc-v2"))
+				return ERR_PTR(-ENODEV);
+
+			map = syscon_node_to_regmap(np->parent);
+			of_node_put(np);
 			if (IS_ERR(map))
 				return map;
 		} else
diff --git a/drivers/soc/aspeed/aspeed-lpc-ctrl.c b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
index 439bcd6..c557ffd 100644
--- a/drivers/soc/aspeed/aspeed-lpc-ctrl.c
+++ b/drivers/soc/aspeed/aspeed-lpc-ctrl.c
@@ -18,15 +18,15 @@
 
 #define DEVICE_NAME	"aspeed-lpc-ctrl"
 
-#define HICR5 0x0
+#define HICR5 0x80
 #define HICR5_ENL2H	BIT(8)
 #define HICR5_ENFWH	BIT(10)
 
-#define HICR6 0x4
+#define HICR6 0x84
 #define SW_FWH2AHB	BIT(17)
 
-#define HICR7 0x8
-#define HICR8 0xc
+#define HICR7 0x88
+#define HICR8 0x8c
 
 struct aspeed_lpc_ctrl {
 	struct miscdevice	miscdev;
@@ -215,6 +215,7 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
 	struct device_node *node;
 	struct resource resm;
 	struct device *dev;
+	struct device_node *np;
 	int rc;
 
 	dev = &pdev->dev;
@@ -270,8 +271,15 @@ static int aspeed_lpc_ctrl_probe(struct platform_device *pdev)
 		}
 	}
 
-	lpc_ctrl->regmap = syscon_node_to_regmap(
-			pdev->dev.parent->of_node);
+	np = pdev->dev.parent->of_node;
+	if (!of_device_is_compatible(np, "aspeed,ast2400-lpc-v2") &&
+	    !of_device_is_compatible(np, "aspeed,ast2500-lpc-v2") &&
+	    !of_device_is_compatible(np, "aspeed,ast2600-lpc-v2")) {
+		dev_err(dev, "unsupported LPC device binding\n");
+		return -ENODEV;
+	}
+
+	lpc_ctrl->regmap = syscon_node_to_regmap(np);
 	if (IS_ERR(lpc_ctrl->regmap)) {
 		dev_err(dev, "Couldn't get regmap\n");
 		return -ENODEV;
diff --git a/drivers/soc/aspeed/aspeed-lpc-snoop.c b/drivers/soc/aspeed/aspeed-lpc-snoop.c
index 20acac6..210455e 100644
--- a/drivers/soc/aspeed/aspeed-lpc-snoop.c
+++ b/drivers/soc/aspeed/aspeed-lpc-snoop.c
@@ -29,26 +29,25 @@
 #define NUM_SNOOP_CHANNELS 2
 #define SNOOP_FIFO_SIZE 2048
 
-#define HICR5	0x0
+#define HICR5	0x80
 #define HICR5_EN_SNP0W		BIT(0)
 #define HICR5_ENINT_SNP0W	BIT(1)
 #define HICR5_EN_SNP1W		BIT(2)
 #define HICR5_ENINT_SNP1W	BIT(3)
-
-#define HICR6	0x4
+#define HICR6	0x84
 #define HICR6_STR_SNP0W		BIT(0)
 #define HICR6_STR_SNP1W		BIT(1)
-#define SNPWADR	0x10
+#define SNPWADR	0x90
 #define SNPWADR_CH0_MASK	GENMASK(15, 0)
 #define SNPWADR_CH0_SHIFT	0
 #define SNPWADR_CH1_MASK	GENMASK(31, 16)
 #define SNPWADR_CH1_SHIFT	16
-#define SNPWDR	0x14
+#define SNPWDR	0x94
 #define SNPWDR_CH0_MASK		GENMASK(7, 0)
 #define SNPWDR_CH0_SHIFT	0
 #define SNPWDR_CH1_MASK		GENMASK(15, 8)
 #define SNPWDR_CH1_SHIFT	8
-#define HICRB	0x80
+#define HICRB	0x100
 #define HICRB_ENSNP0D		BIT(14)
 #define HICRB_ENSNP1D		BIT(15)
 
@@ -260,6 +259,7 @@ static int aspeed_lpc_snoop_probe(struct platform_device *pdev)
 {
 	struct aspeed_lpc_snoop *lpc_snoop;
 	struct device *dev;
+	struct device_node *np;
 	u32 port;
 	int rc;
 
@@ -269,8 +269,15 @@ static int aspeed_lpc_snoop_probe(struct platform_device *pdev)
 	if (!lpc_snoop)
 		return -ENOMEM;
 
-	lpc_snoop->regmap = syscon_node_to_regmap(
-			pdev->dev.parent->of_node);
+	np = pdev->dev.parent->of_node;
+	if (!of_device_is_compatible(np, "aspeed,ast2400-lpc-v2") &&
+	    !of_device_is_compatible(np, "aspeed,ast2500-lpc-v2") &&
+	    !of_device_is_compatible(np, "aspeed,ast2600-lpc-v2")) {
+		dev_err(dev, "unsupported LPC device binding\n");
+		return -ENODEV;
+	}
+
+	lpc_snoop->regmap = syscon_node_to_regmap(np);
 	if (IS_ERR(lpc_snoop->regmap)) {
 		dev_err(dev, "Couldn't get regmap\n");
 		return -ENODEV;