mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-23 03:23:47 +07:00
bc1099d2b2
This adds support for an optional device-tree property that makes the driver skip all the delays around clocking the GPIOs and set it in the device-tree of common POWER9 based OpenPower platforms. This useful on chips like the AST2500 where the GPIO block is running at a fairly low clock frequency (25Mhz typically). In this case, the delays are unnecessary and due to the low precision of the timers, actually quite harmful in terms of performance. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Christopher Bostic <cbostic@linux.vnet.ibm.com> Tested-by: Joel Stanley <joel@jms.id.au>
586 lines
8.8 KiB
Plaintext
586 lines
8.8 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0+
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/dts-v1/;
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#include "aspeed-g5.dtsi"
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#include <dt-bindings/gpio/aspeed-gpio.h>
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#include <dt-bindings/leds/leds-pca955x.h>
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/ {
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model = "Witherspoon BMC";
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compatible = "ibm,witherspoon-bmc", "aspeed,ast2500";
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chosen {
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stdout-path = &uart5;
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bootargs = "console=ttyS4,115200 earlyprintk";
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};
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memory@80000000 {
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reg = <0x80000000 0x20000000>;
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};
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reserved-memory {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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flash_memory: region@98000000 {
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no-map;
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reg = <0x98000000 0x04000000>; /* 64M */
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};
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};
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gpio-keys {
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compatible = "gpio-keys";
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air-water {
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label = "air-water";
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gpios = <&gpio ASPEED_GPIO(B, 5) GPIO_ACTIVE_LOW>;
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linux,code = <ASPEED_GPIO(B, 5)>;
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};
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checkstop {
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label = "checkstop";
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gpios = <&gpio ASPEED_GPIO(J, 2) GPIO_ACTIVE_LOW>;
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linux,code = <ASPEED_GPIO(J, 2)>;
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};
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ps0-presence {
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label = "ps0-presence";
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gpios = <&gpio ASPEED_GPIO(P, 7) GPIO_ACTIVE_LOW>;
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linux,code = <ASPEED_GPIO(P, 7)>;
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};
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ps1-presence {
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label = "ps1-presence";
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gpios = <&gpio ASPEED_GPIO(N, 0) GPIO_ACTIVE_LOW>;
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linux,code = <ASPEED_GPIO(N, 0)>;
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};
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};
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gpio-keys-polled {
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compatible = "gpio-keys-polled";
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#address-cells = <1>;
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#size-cells = <0>;
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poll-interval = <1000>;
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fan0-presence {
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label = "fan0-presence";
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gpios = <&pca0 4 GPIO_ACTIVE_LOW>;
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linux,code = <4>;
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};
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fan1-presence {
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label = "fan1-presence";
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gpios = <&pca0 5 GPIO_ACTIVE_LOW>;
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linux,code = <5>;
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};
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fan2-presence {
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label = "fan2-presence";
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gpios = <&pca0 6 GPIO_ACTIVE_LOW>;
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linux,code = <6>;
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};
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fan3-presence {
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label = "fan3-presence";
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gpios = <&pca0 7 GPIO_ACTIVE_LOW>;
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linux,code = <7>;
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};
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};
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leds {
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compatible = "gpio-leds";
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fan0 {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 0 GPIO_ACTIVE_LOW>;
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};
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fan1 {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 1 GPIO_ACTIVE_LOW>;
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};
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fan2 {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 2 GPIO_ACTIVE_LOW>;
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};
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fan3 {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 3 GPIO_ACTIVE_LOW>;
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};
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front-fault {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 13 GPIO_ACTIVE_LOW>;
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};
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front-power {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 14 GPIO_ACTIVE_LOW>;
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};
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front-id {
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retain-state-shutdown;
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default-state = "keep";
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gpios = <&pca0 15 GPIO_ACTIVE_LOW>;
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};
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rear-fault {
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gpios = <&gpio ASPEED_GPIO(N, 2) GPIO_ACTIVE_LOW>;
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};
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rear-id {
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gpios = <&gpio ASPEED_GPIO(N, 4) GPIO_ACTIVE_LOW>;
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};
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rear-power {
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gpios = <&gpio ASPEED_GPIO(N, 3) GPIO_ACTIVE_LOW>;
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};
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power-button {
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gpios = <&gpio ASPEED_GPIO(R, 5) GPIO_ACTIVE_LOW>;
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};
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};
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fsi: gpio-fsi {
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compatible = "fsi-master-gpio", "fsi-master";
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#address-cells = <2>;
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#size-cells = <0>;
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no-gpio-delays;
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clock-gpios = <&gpio ASPEED_GPIO(AA, 0) GPIO_ACTIVE_HIGH>;
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data-gpios = <&gpio ASPEED_GPIO(E, 0) GPIO_ACTIVE_HIGH>;
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mux-gpios = <&gpio ASPEED_GPIO(A, 6) GPIO_ACTIVE_HIGH>;
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enable-gpios = <&gpio ASPEED_GPIO(D, 0) GPIO_ACTIVE_HIGH>;
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trans-gpios = <&gpio ASPEED_GPIO(R, 2) GPIO_ACTIVE_HIGH>;
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};
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iio-hwmon-dps310 {
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compatible = "iio-hwmon";
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io-channels = <&dps 0>;
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};
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iio-hwmon-bmp280 {
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compatible = "iio-hwmon";
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io-channels = <&bmp 1>;
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};
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};
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&fmc {
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status = "okay";
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flash@0 {
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status = "okay";
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label = "bmc";
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m25p,fast-read;
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#include "openbmc-flash-layout.dtsi"
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};
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flash@1 {
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status = "okay";
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label = "alt";
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m25p,fast-read;
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};
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};
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&spi1 {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_spi1_default>;
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flash@0 {
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status = "okay";
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label = "pnor";
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m25p,fast-read;
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};
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};
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&uart1 {
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/* Rear RS-232 connector */
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_txd1_default
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&pinctrl_rxd1_default
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&pinctrl_nrts1_default
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&pinctrl_ndtr1_default
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&pinctrl_ndsr1_default
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&pinctrl_ncts1_default
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&pinctrl_ndcd1_default
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&pinctrl_nri1_default>;
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};
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&uart2 {
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/* APSS */
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_txd2_default &pinctrl_rxd2_default>;
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};
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&uart5 {
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status = "okay";
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};
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&lpc_ctrl {
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status = "okay";
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memory-region = <&flash_memory>;
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flash = <&spi1>;
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};
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&mac0 {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_rmii1_default>;
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use-ncsi;
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};
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&i2c2 {
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status = "okay";
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/* MUX ->
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* Samtec 1
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* Samtec 2
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*/
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};
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&i2c3 {
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status = "okay";
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bmp: bmp280@77 {
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compatible = "bosch,bmp280";
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reg = <0x77>;
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#io-channel-cells = <1>;
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};
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max31785@52 {
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compatible = "maxim,max31785a";
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reg = <0x52>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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dps: dps310@76 {
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compatible = "infineon,dps310";
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reg = <0x76>;
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#io-channel-cells = <0>;
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};
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pca0: pca9552@60 {
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compatible = "nxp,pca9552";
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reg = <0x60>;
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#address-cells = <1>;
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#size-cells = <0>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio@0 {
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reg = <0>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@1 {
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reg = <1>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@2 {
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reg = <2>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@3 {
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reg = <3>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@4 {
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reg = <4>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@5 {
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reg = <5>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@6 {
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reg = <6>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@7 {
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reg = <7>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@8 {
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reg = <8>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@9 {
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reg = <9>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@10 {
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reg = <10>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@11 {
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reg = <11>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@12 {
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reg = <12>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@13 {
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reg = <13>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@14 {
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reg = <14>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@15 {
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reg = <15>;
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type = <PCA955X_TYPE_GPIO>;
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};
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};
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power-supply@68 {
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compatible = "ibm,cffps1";
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reg = <0x68>;
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};
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power-supply@69 {
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compatible = "ibm,cffps1";
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reg = <0x69>;
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};
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};
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&i2c4 {
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status = "okay";
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tmp423a@4c {
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compatible = "ti,tmp423";
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reg = <0x4c>;
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};
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ir35221@70 {
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compatible = "infineon,ir35221";
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reg = <0x70>;
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};
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ir35221@71 {
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compatible = "infineon,ir35221";
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reg = <0x71>;
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};
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};
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&i2c5 {
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status = "okay";
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tmp423a@4c {
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compatible = "ti,tmp423";
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reg = <0x4c>;
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};
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ir35221@70 {
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compatible = "infineon,ir35221";
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reg = <0x70>;
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};
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ir35221@71 {
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compatible = "infineon,ir35221";
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reg = <0x71>;
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};
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};
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&i2c9 {
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status = "okay";
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tmp275@4a {
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compatible = "ti,tmp275";
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reg = <0x4a>;
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};
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};
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&i2c10 {
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/* MUX
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* -> PCIe Slot 3
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* -> PCIe Slot 4
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*/
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status = "okay";
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};
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&i2c11 {
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status = "okay";
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pca9552: pca9552@60 {
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compatible = "nxp,pca9552";
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reg = <0x60>;
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#address-cells = <1>;
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#size-cells = <0>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "PS_SMBUS_RESET_N", "APSS_RESET_N",
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"GPU0_TH_OVERT_N_BUFF", "GPU1_TH_OVERT_N_BUFF",
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"GPU2_TH_OVERT_N_BUFF", "GPU3_TH_OVERT_N_BUFF",
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"GPU4_TH_OVERT_N_BUFF", "GPU5_TH_OVERT_N_BUFF",
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"GPU0_PWR_GOOD_BUFF", "GPU1_PWR_GOOD_BUFF",
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"GPU2_PWR_GOOD_BUFF", "GPU3_PWR_GOOD_BUFF",
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"GPU4_PWR_GOOD_BUFF", "GPU5_PWR_GOOD_BUFF",
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"12V_BREAKER_FLT_N", "THROTTLE_UNLATCHED_N";
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gpio@0 {
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reg = <0>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@1 {
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reg = <1>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@2 {
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reg = <2>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@3 {
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reg = <3>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@4 {
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reg = <4>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@5 {
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reg = <5>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@6 {
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reg = <6>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@7 {
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reg = <7>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@8 {
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reg = <8>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@9 {
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reg = <9>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@10 {
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reg = <10>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@11 {
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reg = <11>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@12 {
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reg = <12>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@13 {
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reg = <13>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@14 {
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reg = <14>;
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type = <PCA955X_TYPE_GPIO>;
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};
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gpio@15 {
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reg = <15>;
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type = <PCA955X_TYPE_GPIO>;
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};
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};
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rtc@32 {
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compatible = "epson,rx8900";
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reg = <0x32>;
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};
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eeprom@51 {
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compatible = "atmel,24c64";
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reg = <0x51>;
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};
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ucd90160@64 {
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compatible = "ti,ucd90160";
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reg = <0x64>;
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};
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};
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&i2c12 {
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status = "okay";
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};
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&i2c13 {
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status = "okay";
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};
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&vuart {
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status = "okay";
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};
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&gfx {
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status = "okay";
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};
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&pinctrl {
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aspeed,external-nodes = <&gfx &lhc>;
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};
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&wdt1 {
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aspeed,reset-type = "none";
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aspeed,external-signal;
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aspeed,ext-push-pull;
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aspeed,ext-active-high;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_wdtrst1_default>;
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};
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&wdt2 {
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aspeed,alt-boot;
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};
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&ibt {
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status = "okay";
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};
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