| // 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>; |
| }; |
| |
| /* 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*/ "","","","","","",""; |
| }; |