diff options
Diffstat (limited to 'arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts')
| -rw-r--r-- | arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts new file mode 100644 index 000000000..ad1fcad36 --- /dev/null +++ b/arch/arm/boot/dts/aspeed-bmc-facebook-wedge400.dts @@ -0,0 +1,420 @@ +// SPDX-License-Identifier: GPL-2.0+ +// Copyright (c) 2019 Facebook Inc. +/dts-v1/; + +#include <dt-bindings/gpio/aspeed-gpio.h> +#include "ast2500-facebook-netbmc-common.dtsi" + +/ { + model = "Facebook Wedge 400 BMC"; + compatible = "facebook,wedge400-bmc", "aspeed,ast2500"; + + aliases { + /* + * PCA9548 (2-0070) provides 8 channels connecting to + * SCM (System Controller Module). + */ + i2c16 = &imux16; + i2c17 = &imux17; + i2c18 = &imux18; + i2c19 = &imux19; + i2c20 = &imux20; + i2c21 = &imux21; + i2c22 = &imux22; + i2c23 = &imux23; + + /* + * PCA9548 (8-0070) provides 8 channels connecting to + * SMB (Switch Main Board). + */ + i2c24 = &imux24; + i2c25 = &imux25; + i2c26 = &imux26; + i2c27 = &imux27; + i2c28 = &imux28; + i2c29 = &imux29; + i2c30 = &imux30; + i2c31 = &imux31; + + /* + * PCA9548 (11-0076) provides 8 channels connecting to + * FCM (Fan Controller Module). + */ + i2c32 = &imux32; + i2c33 = &imux33; + i2c34 = &imux34; + i2c35 = &imux35; + i2c36 = &imux36; + i2c37 = &imux37; + i2c38 = &imux38; + i2c39 = &imux39; + + spi2 = &spi_gpio; + }; + + chosen { + stdout-path = &uart1; + bootargs = "console=ttyS0,9600n8 root=/dev/ram rw"; + }; + + ast-adc-hwmon { + compatible = "iio-hwmon"; + io-channels = <&adc 0>, <&adc 1>, <&adc 2>, <&adc 3>, <&adc 4>; + }; + + /* + * GPIO-based SPI Master is required to access SPI TPM, because + * full-duplex SPI transactions are not supported by ASPEED SPI + * Controllers. + */ + spi_gpio: spi-gpio { + status = "okay"; + compatible = "spi-gpio"; + #address-cells = <1>; + #size-cells = <0>; + + cs-gpios = <&gpio ASPEED_GPIO(R, 2) GPIO_ACTIVE_LOW>; + gpio-sck = <&gpio ASPEED_GPIO(R, 3) GPIO_ACTIVE_HIGH>; + gpio-mosi = <&gpio ASPEED_GPIO(R, 4) GPIO_ACTIVE_HIGH>; + gpio-miso = <&gpio ASPEED_GPIO(R, 5) GPIO_ACTIVE_HIGH>; + num-chipselects = <1>; + + tpmdev@0 { + compatible = "tcg,tpm_tis-spi"; + spi-max-frequency = <33000000>; + reg = <0>; + }; + }; +}; + +/* + * Both firmware flashes are 128MB on Wedge400 BMC. + */ +&fmc_flash0 { + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + /* + * u-boot partition: 384KB. + */ + u-boot@0 { + reg = <0x0 0x60000>; + label = "u-boot"; + }; + + /* + * u-boot environment variables: 128KB. + */ + u-boot-env@60000 { + reg = <0x60000 0x20000>; + label = "env"; + }; + + /* + * FIT image: 123.5 MB. + */ + fit@80000 { + reg = <0x80000 0x7b80000>; + label = "fit"; + }; + + /* + * "data0" partition (4MB) is reserved for persistent + * data store. + */ + data0@3800000 { + reg = <0x7c00000 0x800000>; + label = "data0"; + }; + + /* + * "flash0" partition (covering the entire flash) is + * explicitly created to avoid breaking legacy applications. + */ + flash0@0 { + reg = <0x0 0x8000000>; + label = "flash0"; + }; + }; +}; + +&fmc_flash1 { + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + flash1@0 { + reg = <0x0 0x8000000>; + label = "flash1"; + }; + }; +}; + +&uart2 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_txd2_default + &pinctrl_rxd2_default>; +}; + +&uart4 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_txd4_default + &pinctrl_rxd4_default>; +}; + +/* + * I2C bus #0 is multi-master environment dedicated for BMC and Bridge IC + * communication. + */ +&i2c0 { + status = "okay"; + multi-master; + bus-frequency = <1000000>; +}; + +&i2c1 { + status = "okay"; +}; + +&i2c2 { + status = "okay"; + + i2c-switch@70 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x70>; + i2c-mux-idle-disconnect; + + imux16: i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + + imux17: i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + imux18: i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + + imux19: i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + + imux20: i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + }; + + imux21: i2c@5 { + #address-cells = <1>; + #size-cells = <0>; + reg = <5>; + }; + + imux22: i2c@6 { + #address-cells = <1>; + #size-cells = <0>; + reg = <6>; + }; + + imux23: i2c@7 { + #address-cells = <1>; + #size-cells = <0>; + reg = <7>; + }; + }; +}; + +&i2c3 { + status = "okay"; +}; + +&i2c4 { + status = "okay"; +}; + +&i2c5 { + status = "okay"; +}; + +&i2c6 { + status = "okay"; +}; + +&i2c7 { + status = "okay"; +}; + +&i2c8 { + status = "okay"; + + i2c-switch@70 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x70>; + i2c-mux-idle-disconnect; + + imux24: i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + + imux25: i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + imux26: i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + + imux27: i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + + imux28: i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + }; + + imux29: i2c@5 { + #address-cells = <1>; + #size-cells = <0>; + reg = <5>; + }; + + imux30: i2c@6 { + #address-cells = <1>; + #size-cells = <0>; + reg = <6>; + }; + + imux31: i2c@7 { + #address-cells = <1>; + #size-cells = <0>; + reg = <7>; + }; + + }; +}; + +&i2c9 { + status = "okay"; +}; + +&i2c10 { + status = "okay"; +}; + +&i2c11 { + status = "okay"; + + i2c-switch@76 { + compatible = "nxp,pca9548"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x76>; + i2c-mux-idle-disconnect; + + imux32: i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + + imux33: i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + imux34: i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + }; + + imux35: i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + }; + + imux36: i2c@4 { + #address-cells = <1>; + #size-cells = <0>; + reg = <4>; + }; + + imux37: i2c@5 { + #address-cells = <1>; + #size-cells = <0>; + reg = <5>; + }; + + imux38: i2c@6 { + #address-cells = <1>; + #size-cells = <0>; + reg = <6>; + }; + + imux39: i2c@7 { + #address-cells = <1>; + #size-cells = <0>; + reg = <7>; + }; + + }; +}; + +&i2c12 { + status = "okay"; +}; + +&i2c13 { + status = "okay"; +}; + +&adc { + status = "okay"; +}; + +&ehci1 { + status = "okay"; +}; + +&uhci { + status = "okay"; +}; + +&sdhci1 { + /* + * DMA mode needs to be disabled to avoid conflicts with UHCI + * Controller in AST2500 SoC. + */ + sdhci-caps-mask = <0x0 0x580000>; +}; |