[PATCH v2 2/2] ARM: dts: aspeed: Add ASRock E3C256D4I BMC

From: Zev Weiss
Date: Mon Nov 20 2023 - 07:19:30 EST

Like the E3C246D4I, this is a reasonably affordable off-the-shelf
mini-ITX AST2500/Xeon motherboard with good potential as an OpenBMC
development platform. Booting the host requires a modicum of eSPI
support that's not yet in the mainline kernel, but most other basic
BMC functionality is available with this device-tree.

Signed-off-by: Zev Weiss <zev@xxxxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/aspeed/Makefile | 1 +
.../aspeed/aspeed-bmc-asrock-e3c256d4i.dts | 322 ++++++++++++++++++
2 files changed, 323 insertions(+)
create mode 100644 arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-e3c256d4i.dts

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index d3ac20e316d0..3398ee53f034 100644
--- a/arch/arm/boot/dts/aspeed/Makefile
+++ b/arch/arm/boot/dts/aspeed/Makefile
@@ -9,6 +9,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
aspeed-bmc-ampere-mtmitchell.dtb \
aspeed-bmc-arm-stardragon4800-rep2.dtb \
aspeed-bmc-asrock-e3c246d4i.dtb \
+ aspeed-bmc-asrock-e3c256d4i.dtb \
aspeed-bmc-asrock-romed8hm3.dtb \
aspeed-bmc-bytedance-g220a.dtb \
aspeed-bmc-delta-ahe50dc.dtb \
diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-e3c256d4i.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-e3c256d4i.dts
new file mode 100644
index 000000000000..263fcc8106ff
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-asrock-e3c256d4i.dts
@@ -0,0 +1,322 @@
+// 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>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/watchdog/aspeed-wdt.h>
+
+/{
+ model = "ASRock E3C256D4I BMC";
+ compatible = "asrock,e3c256d4i-bmc", "aspeed,ast2500";
+
+ aliases {
+ serial4 = &uart5;
+
+ i2c20 = &i2c2mux0ch0;
+ i2c21 = &i2c2mux0ch1;
+ i2c22 = &i2c2mux0ch2;
+ i2c23 = &i2c2mux0ch3;
+ };
+
+ chosen {
+ stdout-path = &uart5;
+ };
+
+ memory@80000000 {
+ reg = <0x80000000 0x20000000>;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+
+ /* BMC heartbeat */
+ led-0 {
+ gpios = <&gpio ASPEED_GPIO(H, 6) GPIO_ACTIVE_LOW>;
+ function = LED_FUNCTION_HEARTBEAT;
+ color = <LED_COLOR_ID_GREEN>;
+ linux,default-trigger = "timer";
+ };
+
+ /* system fault */
+ led-1 {
+ gpios = <&gpio ASPEED_GPIO(Z, 2) GPIO_ACTIVE_LOW>;
+ function = LED_FUNCTION_FAULT;
+ color = <LED_COLOR_ID_RED>;
+ panic-indicator;
+ };
+ };
+
+ 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>, <&adc 13>, <&adc 14>, <&adc 15>;
+ };
+};
+
+&fmc {
+ status = "okay";
+ flash@0 {
+ status = "okay";
+ m25p,fast-read;
+ label = "bmc";
+ spi-max-frequency = <100000000>; /* 100 MHz */
+#include "openbmc-flash-layout-64.dtsi"
+ };
+};
+
+&uart1 {
+ status = "okay";
+};
+
+&uart2 {
+ status = "okay";
+};
+
+&uart3 {
+ status = "okay";
+};
+
+&uart4 {
+ status = "okay";
+};
+
+&uart5 {
+ status = "okay";
+};
+
+&uart_routing {
+ status = "okay";
+};
+
+&mac0 {
+ status = "okay";
+
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_rgmii1_default &pinctrl_mdio1_default>;
+
+ nvmem-cells = <&eth0_macaddress>;
+ nvmem-cell-names = "mac-address";
+};
+
+&i2c0 {
+ status = "okay";
+};
+
+&i2c1 {
+ status = "okay";
+};
+
+&i2c2 {
+ status = "okay";
+
+ i2c-mux@70 {
+ compatible = "nxp,pca9545";
+ reg = <0x70>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ i2c2mux0ch0: i2c@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <0>;
+ };
+
+ i2c2mux0ch1: i2c@1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ };
+
+ i2c2mux0ch2: i2c@2 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <2>;
+ };
+
+ i2c2mux0ch3: i2c@3 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <3>;
+ };
+ };
+};
+
+&i2c3 {
+ status = "okay";
+};
+
+&i2c4 {
+ status = "okay";
+};
+
+&i2c5 {
+ status = "okay";
+};
+
+&i2c6 {
+ status = "okay";
+};
+
+&i2c7 {
+ status = "okay";
+};
+
+&i2c9 {
+ status = "okay";
+};
+
+&i2c10 {
+ status = "okay";
+};
+
+&i2c11 {
+ status = "okay";
+
+ vrm@60 {
+ compatible = "renesas,isl69269", "isl69269";
+ reg = <0x60>;
+ };
+};
+
+&i2c12 {
+ status = "okay";
+
+ /* FRU eeprom */
+ eeprom@57 {
+ compatible = "st,24c128", "atmel,24c128";
+ reg = <0x57>;
+ pagesize = <16>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ eth0_macaddress: macaddress@3f80 {
+ reg = <0x3f80 6>;
+ };
+ };
+};
+
+&video {
+ status = "okay";
+};
+
+&vhub {
+ status = "okay";
+};
+
+&lpc_ctrl {
+ status = "okay";
+};
+
+&lpc_snoop {
+ status = "okay";
+ snoop-ports = <0x80>;
+};
+
+&kcs3 {
+ status = "okay";
+ aspeed,lpc-io-reg = <0xca2>;
+};
+
+&peci0 {
+ status = "okay";
+};
+
+&wdt1 {
+ aspeed,reset-mask = <(AST2500_WDT_RESET_DEFAULT & ~AST2500_WDT_RESET_LPC)>;
+};
+
+&wdt2 {
+ aspeed,reset-mask = <(AST2500_WDT_RESET_DEFAULT & ~AST2500_WDT_RESET_LPC)>;
+};
+
+&pwm_tacho {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm0_default /* CPU */
+ &pinctrl_pwm2_default /* rear */
+ &pinctrl_pwm4_default>; /* front */
+
+ /* CPU */
+ fan@0 {
+ reg = <0x00>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x00>;
+ };
+
+ /* rear */
+ fan@2 {
+ reg = <0x02>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x02>;
+ };
+
+ /* front */
+ fan@4 {
+ reg = <0x04>;
+ aspeed,fan-tach-ch = /bits/ 8 <0x04>;
+ };
+};
+
+&gpio {
+ status = "okay";
+ gpio-line-names =
+ /* A */ "", "", "NMI_BTN_N", "BMC_NMI", "", "", "", "",
+ /* B */ "", "", "", "", "", "", "", "",
+ /* 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",
+ "", "", "", "",
+ /* H */ "FM_ME_RCVR_N", "O_PWROK", "", "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 */ "", "", "", "", "", "", "", "",
+ /* M */ "", "", "", "", "", "", "", "",
+ /* N */ "", "", "", "", "", "", "", "",
+ /* O */ "", "", "", "", "", "", "", "",
+ /* P */ "", "", "", "", "", "", "", "",
+ /* Q */ "", "", "", "", "", "", "", "",
+ /* R */ "", "", "", "", "", "", "", "",
+ /* S */ "PCHHOT_BMC_N", "", "RSMRST", "", "", "", "", "",
+ /* T */ "", "", "", "", "", "", "", "",
+ /* U */ "", "", "", "", "", "", "", "",
+ /* V */ "", "", "", "", "", "", "", "",
+ /* W */ "", "", "", "", "", "", "", "",
+ /* X */ "", "", "", "", "", "", "", "",
+ /* Y */ "SLP_S3", "SLP_S5", "", "", "", "", "", "",
+ /* Z */ "CPU_CATERR_BMC_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 */ "", "", "", "", "", "", "", "";
+};
+
+&adc {
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_adc0_default /* 3VSB */
+ &pinctrl_adc1_default /* 5VSB */
+ &pinctrl_adc2_default /* CPU1 */
+ &pinctrl_adc3_default /* VCCSA */
+ &pinctrl_adc4_default /* VCCM */
+ &pinctrl_adc5_default /* V10M */
+ &pinctrl_adc6_default /* VCCIO */
+ &pinctrl_adc7_default /* VCCGT */
+ &pinctrl_adc8_default /* VPPM */
+ &pinctrl_adc9_default /* BAT */
+ &pinctrl_adc10_default /* 3V */
+ &pinctrl_adc11_default /* 5V */
+ &pinctrl_adc12_default /* 12V */
+ &pinctrl_adc13_default /* GND */
+ &pinctrl_adc14_default /* GND */
+ &pinctrl_adc15_default>; /* GND */
+};
--
2.42.0