ARM: dts: aspeed: Add ASRock E3C256D4I BMC

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@bewilderbeest.net>
Link: https://lore.kernel.org/r/20240502002836.17862-8-zev@bewilderbeest.net
Signed-off-by: Joel Stanley <joel@jms.id.au>

diff --git a/arch/arm/boot/dts/aspeed/Makefile b/arch/arm/boot/dts/aspeed/Makefile
index 391f0bfa75ce2209ac23e05b2afd8985bc755dd3..e51c6d2037255ad5b20b8b9f0ce5026f70a6e896 100644 (file)
--- 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-asrock-spc621d8hm3.dtb \
        aspeed-bmc-asrock-x570d4u.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 (file)
index 0000000..9d00ce9
--- /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 = "isil,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 */
+};