arch/arm/boot/dts/armada-388-clearfog.dtsi

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Device Tree include file for SolidRun Clearfog 88F6828 based boards
   4  *
   5  *  Copyright (C) 2015 Russell King
   6  */
   7
   8 #include "armada-388.dtsi"
   9 #include "armada-38x-solidrun-microsom.dtsi"
  10
  11 / {
  12         aliases {
  13                 /* So that mvebu u-boot can update the MAC addresses */
  14                 ethernet1 = &eth0;
  15                 ethernet2 = &eth1;
  16                 ethernet3 = &eth2;
  17         };
  18
  19         chosen {
  20                 stdout-path = "serial0:115200n8";
  21         };
  22
  23         reg_3p3v: regulator-3p3v {
  24                 compatible = "regulator-fixed";
  25                 regulator-name = "3P3V";
  26                 regulator-min-microvolt = <3300000>;
  27                 regulator-max-microvolt = <3300000>;
  28                 regulator-always-on;
  29         };
  30
  31         soc {
  32                 internal-regs {
  33                         sata@a8000 {
  34                                 /* pinctrl? */
  35                                 status = "okay";
  36                         };
  37
  38                         sata@e0000 {
  39                                 /* pinctrl? */
  40                                 status = "okay";
  41                         };
  42
  43                         sdhci@d8000 {
  44                                 bus-width = <4>;
  45                                 cd-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
  46                                 no-1-8-v;
  47                                 pinctrl-0 = <&microsom_sdhci_pins
  48                                              &clearfog_sdhci_cd_pins>;
  49                                 pinctrl-names = "default";
  50                                 status = "okay";
  51                                 vmmc-supply = <&reg_3p3v>;
  52                                 wp-inverted;
  53                         };
  54
  55                         usb@58000 {
  56                                 /* CON3, nearest  power. */
  57                                 status = "okay";
  58                         };
  59
  60                         usb3@f8000 {
  61                                 /* CON7 */
  62                                 status = "okay";
  63                         };
  64                 };
  65
  66                 pcie {
  67                         status = "okay";
  68                         /*
  69                          * The two PCIe units are accessible through
  70                          * the mini-PCIe connectors on the board.
  71                          */
  72                         pcie@2,0 {
  73                                 /* Port 1, Lane 0. CON3, nearest power. */
  74                                 reset-gpios = <&expander0 1 GPIO_ACTIVE_LOW>;
  75                                 status = "okay";
  76                         };
  77                 };
  78         };
  79
  80         sfp: sfp {
  81                 compatible = "sff,sfp";
  82                 i2c-bus = <&i2c1>;
  83                 los-gpio = <&expander0 12 GPIO_ACTIVE_HIGH>;
  84                 mod-def0-gpio = <&expander0 15 GPIO_ACTIVE_LOW>;
  85                 tx-disable-gpio = <&expander0 14 GPIO_ACTIVE_HIGH>;
  86                 tx-fault-gpio = <&expander0 13 GPIO_ACTIVE_HIGH>;
  87                 maximum-power-milliwatt = <2000>;
  88         };
  89 };
  90
  91 &eth1 {
  92         /* ethernet@30000 */
  93         bm,pool-long = <2>;
  94         bm,pool-short = <1>;
  95         buffer-manager = <&bm>;
  96         phy-mode = "sgmii";
  97         status = "okay";
  98 };
  99
 100 &eth2 {
 101         /* ethernet@34000 */
 102         bm,pool-long = <3>;
 103         bm,pool-short = <1>;
 104         buffer-manager = <&bm>;
 105         managed = "in-band-status";
 106         phy-mode = "sgmii";
 107         sfp = <&sfp>;
 108         status = "okay";
 109 };
 110
 111 &i2c0 {
 112         clock-frequency = <400000>;
 113         pinctrl-0 = <&i2c0_pins>;
 114         pinctrl-names = "default";
 115         status = "okay";
 116
 117         /*
 118          * PCA9655 GPIO expander, up to 1MHz clock.
 119          *  0-CON3 CLKREQ#
 120          *  1-CON3 PERST#
 121          *  2-
 122          *  3-CON3 W_DISABLE
 123          *  4-
 124          *  5-USB3 overcurrent
 125          *  6-USB3 power
 126          *  7-
 127          *  8-JP4 P1
 128          *  9-JP4 P4
 129          * 10-JP4 P5
 130          * 11-m.2 DEVSLP
 131          * 12-SFP_LOS
 132          * 13-SFP_TX_FAULT
 133          * 14-SFP_TX_DISABLE
 134          * 15-SFP_MOD_DEF0
 135          */
 136         expander0: gpio-expander@20 {
 137                 /*
 138                  * This is how it should be:
 139                  * compatible = "onnn,pca9655", "nxp,pca9555";
 140                  * but you can't do this because of the way I2C works.
 141                  */
 142                 compatible = "nxp,pca9555";
 143                 gpio-controller;
 144                 #gpio-cells = <2>;
 145                 reg = <0x20>;
 146
 147                 pcie1_0_clkreq {
 148                         gpio-hog;
 149                         gpios = <0 GPIO_ACTIVE_LOW>;
 150                         input;
 151                         line-name = "pcie1.0-clkreq";
 152                 };
 153                 pcie1_0_w_disable {
 154                         gpio-hog;
 155                         gpios = <3 GPIO_ACTIVE_LOW>;
 156                         output-low;
 157                         line-name = "pcie1.0-w-disable";
 158                 };
 159                 usb3_ilimit {
 160                         gpio-hog;
 161                         gpios = <5 GPIO_ACTIVE_LOW>;
 162                         input;
 163                         line-name = "usb3-current-limit";
 164                 };
 165                 usb3_power {
 166                         gpio-hog;
 167                         gpios = <6 GPIO_ACTIVE_HIGH>;
 168                         output-high;
 169                         line-name = "usb3-power";
 170                 };
 171                 m2_devslp {
 172                         gpio-hog;
 173                         gpios = <11 GPIO_ACTIVE_HIGH>;
 174                         output-low;
 175                         line-name = "m.2 devslp";
 176                 };
 177         };
 178
 179         /* The MCP3021 supports standard and fast modes */
 180         mikrobus_adc: mcp3021@4c {
 181                 compatible = "microchip,mcp3021";
 182                 reg = <0x4c>;
 183         };
 184 };
 185
 186 &i2c1 {
 187         /*
 188          * Routed to SFP, mikrobus, and PCIe.
 189          * SFP limits this to 100kHz, and requires an AT24C01A/02/04 with
 190          *  address pins tied low, which takes addresses 0x50 and 0x51.
 191          * Mikrobus doesn't specify beyond an I2C bus being present.
 192          * PCIe uses ARP to assign addresses, or 0x63-0x64.
 193          */
 194         clock-frequency = <100000>;
 195         pinctrl-0 = <&clearfog_i2c1_pins>;
 196         pinctrl-names = "default";
 197         status = "okay";
 198 };
 199
 200 &pinctrl {
 201         clearfog_i2c1_pins: i2c1-pins {
 202                 /* SFP, PCIe, mSATA, mikrobus */
 203                 marvell,pins = "mpp26", "mpp27";
 204                 marvell,function = "i2c1";
 205         };
 206         clearfog_sdhci_cd_pins: clearfog-sdhci-cd-pins {
 207                 marvell,pins = "mpp20";
 208                 marvell,function = "gpio";
 209         };
 210         mikro_pins: mikro-pins {
 211                 /* int: mpp22 rst: mpp29 */
 212                 marvell,pins = "mpp22", "mpp29";
 213                 marvell,function = "gpio";
 214         };
 215         mikro_spi_pins: mikro-spi-pins {
 216                 marvell,pins = "mpp43";
 217                 marvell,function = "spi1";
 218         };
 219         mikro_uart_pins: mikro-uart-pins {
 220                 marvell,pins = "mpp24", "mpp25";
 221                 marvell,function = "ua1";
 222         };
 223 };
 224
 225 &spi1 {
 226         /*
 227          * Add SPI CS pins for clearfog:
 228          * CS0: W25Q32
 229          * CS1: PIC microcontroller (Pro models)
 230          * CS2: mikrobus
 231          */
 232         pinctrl-0 = <&spi1_pins &mikro_spi_pins>;
 233         pinctrl-names = "default";
 234         status = "okay";
 235 };
 236
 237 &uart1 {
 238         /* mikrobus uart */
 239         pinctrl-0 = <&mikro_uart_pins>;
 240         pinctrl-names = "default";
 241         status = "okay";
 242 };