aspeed-bmc-tyan-s8036.dts
// SPDX-License-Identifier: GPL-2.0+
/dts-v1/;
#include "aspeed-g5.dtsi"
#include <dt-bindings/gpio/aspeed-gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "Tyan S8036 BMC";
compatible = "tyan,s8036-bmc", "aspeed,ast2500";
chosen {
stdout-path = &uart5;
bootargs = "console=ttyS4,115200 earlycon";
};
memory@80000000 {
device_type = "memory";
reg = <0x80000000 0x20000000>;
};
reserved-memory {
#address-cells = <1>;
#size-cells = <1>;
ranges;
p2a_memory: region@987f0000 {
no-map;
reg = <0x987f0000 0x00010000>; /* 64KB */
};
vga_memory: framebuffer@9f000000 {
no-map;
reg = <0x9f000000 0x01000000>; /* 16M */
};
gfx_memory: framebuffer {
size = <0x01000000>; /* 16M */
alignment = <0x01000000>;
compatible = "shared-dma-pool";
reusable;
};
};
leds {
compatible = "gpio-leds";
identify {
gpios = <&gpio ASPEED_GPIO(A, 2) GPIO_ACTIVE_LOW>;
};
heartbeat {
gpios = <&gpio ASPEED_GPIO(E, 7) GPIO_ACTIVE_LOW>;
};
};
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>;
};
iio-hwmon-battery {
compatible = "iio-hwmon";
io-channels = <&adc 15>;
};
};
&fmc {
status = "okay";
flash@0 {
label = "bmc";
status = "okay";
m25p,fast-read;
#include "openbmc-flash-layout.dtsi"
};
};
&spi1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_spi1_default>;
flash@0 {
status = "okay";
label = "pnor";
m25p,fast-read;
};
};
&uart1 {
/* Rear RS-232 connector */
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_txd1_default
&pinctrl_rxd1_default>;
};
&uart2 {
/* RS-232 connector on header */
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_txd2_default
&pinctrl_rxd2_default>;
};
&uart3 {
/* Alternative to vuart to internally connect (route) to uart1
* when vuart cannot be used due to BIOS limitations.
*/
status = "okay";
};
&uart4 {
/* Alternative to vuart to internally connect (route) to the
* external port usually used by uart1 when vuart cannot be
* used due to BIOS limitations.
*/
status = "okay";
};
&uart5 {
/* BMC "debug" (console) UART; connected to RS-232 connector
* on header; selectable via jumpers as alternative to uart2
*/
status = "okay";
};
&uart_routing {
status = "okay";
};
&vuart {
status = "okay";
/* We enable the VUART here, but leave it in a state that does
* not interfere with the SuperIO. The goal is to have both the
* VUART and the SuperIO available and decide at runtime whether
* the VUART should actually be used. For that reason, configure
* an "invalid" IO address and an IRQ that is not used by the
* BMC.
*/
aspeed,lpc-io-reg = <0xffff>;
aspeed,lpc-interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
};
&lpc_ctrl {
status = "okay";
};
&p2a {
status = "okay";
memory-region = <&p2a_memory>;
};
&lpc_snoop {
status = "okay";
snoop-ports = <0x80>;
};
&adc {
status = "okay";
};
&vhub {
status = "okay";
};
&pwm_tacho {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pwm0_default
&pinctrl_pwm1_default
&pinctrl_pwm3_default
&pinctrl_pwm4_default>;
/* CPU fan */
fan@0 {
reg = <0x00>;
aspeed,fan-tach-ch = /bits/ 8 <0x00>;
};
/* PWM group for chassis fans #1, #2, #3 and #4 */
fan@2 {
reg = <0x03>;
aspeed,fan-tach-ch = /bits/ 8 <0x02>;
};
fan@3 {
reg = <0x03>;
aspeed,fan-tach-ch = /bits/ 8 <0x03>;
};
fan@4 {
reg = <0x03>;
aspeed,fan-tach-ch = /bits/ 8 <0x04>;
};
fan@5 {
reg = <0x03>;
aspeed,fan-tach-ch = /bits/ 8 <0x05>;
};
/* PWM group for chassis fans #5 and #6 */
fan@6 {
reg = <0x04>;
aspeed,fan-tach-ch = /bits/ 8 <0x06>;
};
fan@7 {
reg = <0x04>;
aspeed,fan-tach-ch = /bits/ 8 <0x07>;
};
};
&i2c0 {
/* Directly connected to Sideband-Temperature Sensor Interface (APML) */
status = "okay";
};
&i2c1 {
/* Directly connected to IPMB HDR. */
status = "okay";
};
&i2c2 {
status = "okay";
/* BMC EEPROM, incl. mainboard FRU */
eeprom@50 {
compatible = "atmel,24c256";
reg = <0x50>;
};
/* Also connected to:
* - BCM5720
* - FPGA
* - FAN HDR
* - FPIO HDR
*/
};
&i2c3 {
status = "okay";
/* PSU1 FRU @ 0xA0 */
eeprom@50 {
compatible = "atmel,24c02";
reg = <0x50>;
};
/* PSU2 FRU @ 0xA2 */
eeprom@51 {
compatible = "atmel,24c02";
reg = <0x51>;
};
/* PSU1 @ 0xB0 */
power-supply@58 {
compatible = "pmbus";
reg = <0x58>;
};
/* PSU2 @ 0xB2 */
power-supply@59 {
compatible = "pmbus";
reg = <0x59>;
};
};
&i2c4 {
status = "okay";
};
&i2c5 {
status = "okay";
/* Hardware monitor with temperature sensors */
nct7802@28 {
compatible = "nuvoton,nct7802";
reg = <0x28>;
#address-cells = <1>;
#size-cells = <0>;
channel@0 { /* LTD */
reg = <0>;
status = "okay";
};
channel@1 { /* RTD1 */
reg = <1>;
status = "okay";
sensor-type = "temperature";
temperature-mode = "thermistor";
};
channel@2 { /* RTD2 */
reg = <2>;
status = "okay";
sensor-type = "temperature";
temperature-mode = "thermistor";
};
channel@3 { /* RTD3 */
reg = <3>;
status = "okay";
sensor-type = "temperature";
};
};
/* Also connected to:
* - PCA9544
* - CLK BUFF
* - OCP FRU
*/
};
&i2c6 {
status = "okay";
/* Connected to:
* - PCA9548 @0xE0
* - PCA9548 @0xE2
* - PCA9544 @0xE4
*/
};
&i2c7 {
status = "okay";
/* Connected to:
* - PCH SMBUS #4
*/
};
&i2c8 {
status = "okay";
/* Not connected */
};
&mac0 {
status = "okay";
use-ncsi;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rmii1_default>;
};
&mac1 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
};
&ibt {
status = "okay";
};
&kcs1 {
status = "okay";
aspeed,lpc-io-reg = <0xca8>;
};
&kcs3 {
status = "okay";
aspeed,lpc-io-reg = <0xca2>;
aspeed,lpc-interrupts = <1 IRQ_TYPE_LEVEL_HIGH>;
};
/* Enable BMC VGA output to show an early (pre-BIOS) boot screen */
&gfx {
status = "okay";
memory-region = <&gfx_memory>;
};
/* We're following the GPIO naming as defined at
* https://github.com/openbmc/docs/blob/master/designs/device-tree-gpio-naming.md.
*
* Notes on led-identify and id-button:
* - A physical button is connected to id-button which
* triggers the clock on a D flip-flop. The /Q output of the
* flip-flop drives its D input.
* - The flip-flop's Q output drives led-identify which is
* connected to LEDs.
* - With that, every button press toggles the LED between on and off.
*
* Notes on power-, reset- and nmi- button and control:
* - The -button signals can be used to monitor physical buttons.
* - The -control signals can be used to actuate the specific
* operation.
* - In hardware, the -button signals are connected to the -control
* signals through drivers with the -control signals being
* protected through diodes.
*/
&gpio {
status = "okay";
gpio-line-names =
/*A0*/ "",
/*A1*/ "",
/*A2*/ "led-identify", /* in/out: BMC_CHASSIS_ID_LED_L */
/*A3*/ "",
/*A4*/ "",
/*A5*/ "",
/*A6*/ "",
/*A7*/ "",
/*B0-B7*/ "","","","","","","","",
/*C0-C7*/ "","","","","","","","",
/*D0*/ "",
/*D1*/ "",
/*D2*/ "power-chassis-good", /* in: PWR_GOOD_LED -- Check if this is Z3?*/
/*D3*/ "platform-reset", /* in: RESET_LED_L */
/*D4*/ "",
/*D5*/ "",
/*D6*/ "",
/*D7*/ "",
/*E0*/ "power-button", /* in: BMC_SYS_MON_PWR_BTN_L */
/*E1*/ "power-chassis-control", /* out: BMC_ASSERT_PWR_BTN */
/*E2*/ "reset-button", /* in: BMC_SYS_MOS_RST_BTN_L*/
/*E3*/ "reset-control", /* out: BMC_ASSERT_RST_BTN */
/*E4*/ "nmi-button", /* in: BMC_SYS_MON_NMI_BTN_L */
/*E5*/ "nmi-control", /* out: BMC_ASSERT_NMI_BTN */
/*E6*/ "TSI_RESERT",
/*E7*/ "led-heartbeat", /* out: BMC_GPIOE7 */
/*F0*/ "",
/*F1*/ "clear-cmos-control", /* out: BMC_ASSERT_CLR_CMOS_L */
/*F2*/ "",
/*F3*/ "",
/*F4*/ "led-fault", /* out: BMC_HWM_FAULT_LED_L */
/*F5*/ "BMC_SYS_FAULT_LED_L",
/*F6*/ "BMC_ASSERT_BIOS_WP_L",
/*F7*/ "",
/*G0-G7*/ "","","","","","","","",
/*H0-H7*/ "","","","","","","","",
/*I0-I7*/ "","","","","","","","",
/*J0-J7*/ "","","","","","","","",
/*K0-K7*/ "","","","","","","","",
/*L0-L7*/ "","","","","","","","",
/*M0-M7*/ "","","","","","","","",
/*N0-N7*/ "","","","","","","","",
/*O0-O7*/ "","","","","","","","",
/*P0-P7*/ "","","","","","","","",
/*Q0*/ "",
/*Q1*/ "",
/*Q2*/ "",
/*Q3*/ "",
/*Q4*/ "",
/*Q5*/ "",
/*Q6*/ "id-button", /* in: BMC_CHASSIS_ID_BTN_L */
/*Q7*/ "",
/*R0-R7*/ "","","","","","","","",
/*S0-S7*/ "","","","","","","","",
/*T0-T7*/ "","","","","","","","",
/*U0-U7*/ "","","","","","","","",
/*V0-V7*/ "","","","","","","","",
/*W0-W7*/ "","","","","","","","",
/*X0-X7*/ "","","","","","","","",
/*Y0-Y7*/ "","","","","","","","",
/*Z0-Z2*/ "","","",
/*Z3*/ "post-complete", /* BMC_SYS_MON_PWROK */
/*Z4-Z7*/ "","","","",
/*AA0*/ "",
/*AA1*/ "",
/*AA2*/ "",
/*AA3*/ "",
/*AA4*/ "",
/*AA5*/ "",
/*AA6*/ "",
/*AA7*/ "BMC_ASSERT_BMC_READY",
/*AB0*/ "BMC_SPD_SEL",
/*AB1-AB7*/ "","","","","","","";
};
