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/*
* Device Tree file for SolidRun Clearfog revision A1 rev 2.0 (88F6828)
*
* Copyright (C) 2015 Russell King
*
* This board is in development; the contents of this file work with
* the A1 rev 2.0 of the board, which does not represent final
* production board. Things will change, don't expect this file to
* remain compatible info the future.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPL or the X11 license, at your option. Note that this dual
* licensing only applies to this file, and not this project as a
* whole.
*
* a) This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This file is distributed in the hope that it will be useful
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Or, alternatively
*
* b) Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED , WITHOUT WARRANTY OF ANY KIND
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/dts-v1/;
#include <dt-bindings/input/input.h>
#include <dt-bindings/gpio/gpio.h>
#include "armada-388.dtsi"
#include "armada-38x-solidrun-microsom.dtsi"
/ {
model = "SolidRun Clearfog A1";
compatible = "solidrun,clearfog-a1", "marvell,armada388",
"marvell,armada385", "marvell,armada380";
aliases {
/* So that mvebu u-boot can update the MAC addresses */
ethernet1 = &eth0;
ethernet2 = &eth1;
ethernet3 = &eth2;
spi1 = &spi1;
i2c0 = &i2c0;
i2c1 = &i2c1;
};
chosen {
stdout-path = "serial0:115200n8";
};
reg_3p3v: regulator-3p3v {
compatible = "regulator-fixed";
regulator-name = "3P3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-always-on;
};
soc {
internal-regs {
rtc@a3800 {
/*
* If the rtc doesn't work, run "date reset"
* twice in u-boot.
*/
status = "okay";
};
sata@a8000 {
/* pinctrl? */
status = "okay";
};
sata@e0000 {
/* pinctrl? */
status = "okay";
};
sdhci@d8000 {
bus-width = <4>;
cd-gpios = <&gpio0 20 GPIO_ACTIVE_LOW>;
no-1-8-v;
pinctrl-0 = <&microsom_sdhci_pins
&clearfog_sdhci_cd_pins>;
pinctrl-names = "default";
status = "okay";
vmmc = <&reg_3p3v>;
wp-inverted;
};
serial@12100 {
/* mikrobus uart */
pinctrl-0 = <&mikro_uart_pins>;
pinctrl-names = "default";
status = "okay";
};
usb3@f8000 {
/* CON7, USB-A port on back of device */
status = "okay";
};
};
pcie-controller {
status = "okay";
/*
* The two PCIe units are accessible through
* the mini-PCIe connectors on the board.
*/
pcie@2,0 {
/* Port 1, Lane 0. CONN3, nearest power. */
reset-gpios = <&expander0 1 GPIO_ACTIVE_LOW>;
status = "okay";
};
pcie@3,0 {
/* Port 2, Lane 0. CONN2, nearest CPU. */
reset-gpios = <&expander0 2 GPIO_ACTIVE_LOW>;
status = "okay";
};
};
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-0 = <&rear_button_pins>;
pinctrl-names = "default";
button_0 {
/* The rear SW3 button */
label = "Rear Button";
gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
linux,can-disable;
linux,code = <BTN_0>;
};
};
};
&w25q32 {
status = "okay";
};
&eth1 {
managed = "in-band-status";
phy-mode = "sgmii";
status = "okay";
};
&eth2 {
phy-mode = "sgmii";
status = "okay";
};
&i2c0 {
clock-frequency = <400000>;
pinctrl-0 = <&i2c0_pins>;
pinctrl-names = "default";
status = "okay";
/*
* PCA9655 GPIO expander, up to 1MHz clock.
* 0-CON3 CLKREQ#
* 1-CON3 PERST#
* 2-CON2 PERST#
* 3-CON3 W_DISABLE
* 4-CON2 CLKREQ#
* 5-USB3 overcurrent
* 6-USB3 power
* 7-CON2 W_DISABLE
* 8-JP4 P1
* 9-JP4 P4
* 10-JP4 P5
* 11-m.2 DEVSLP
* 12-SFP_LOS
* 13-SFP_TX_FAULT
* 14-SFP_TX_DISABLE
* 15-SFP_MOD_DEF0
*/
expander0: gpio-expander@20 {
/*
* This is how it should be:
* compatible = "onnn,pca9655",
* "nxp,pca9555";
* but you can't do this because of
* the way I2C works.
*/
compatible = "nxp,pca9555";
gpio-controller;
#gpio-cells = <2>;
reg = <0x20>;
pcie1_0_clkreq {
gpio-hog;
gpios = <0 GPIO_ACTIVE_LOW>;
input;
line-name = "pcie1.0-clkreq";
};
pcie1_0_w_disable {
gpio-hog;
gpios = <3 GPIO_ACTIVE_LOW>;
output-low;
line-name = "pcie1.0-w-disable";
};
pcie2_0_clkreq {
gpio-hog;
gpios = <4 GPIO_ACTIVE_LOW>;
input;
line-name = "pcie2.0-clkreq";
};
pcie2_0_w_disable {
gpio-hog;
gpios = <7 GPIO_ACTIVE_LOW>;
output-low;
line-name = "pcie2.0-w-disable";
};
usb3_ilimit {
gpio-hog;
gpios = <5 GPIO_ACTIVE_LOW>;
input;
line-name = "usb3-current-limit";
};
usb3_power {
gpio-hog;
gpios = <6 GPIO_ACTIVE_HIGH>;
output-high;
line-name = "usb3-power";
};
m2_devslp {
gpio-hog;
gpios = <11 GPIO_ACTIVE_HIGH>;
output-low;
line-name = "m.2 devslp";
};
};
mikrobus_adc: mcp3021@4c {
compatible = "microchip,mcp3021";
reg = <0x4c>;
};
};
&i2c1 {
/*
* Routed to SFP, mikrobus, and PCIe.
* SFP limits this to 100kHz, and requires
* an AT24C01A/02/04 with address pins tied
* low, which takes addresses 0x50 and 0x51.
* Mikrobus doesn't specify beyond an I2C
* bus being present.
* PCIe uses ARP to assign addresses, or
* 0x63-0x64.
*/
clock-frequency = <100000>;
pinctrl-0 = <&clearfog_i2c1_pins>;
pinctrl-names = "default";
status = "okay";
};
&pinctrl {
clearfog_i2c1_pins: i2c1-pins {
/* SFP, PCIe, mSATA, mikrobus */
marvell,pins = "mpp26", "mpp27";
marvell,function = "i2c1";
};
clearfog_sdhci_cd_pins: clearfog-sdhci-cd-pins {
marvell,pins = "mpp20";
marvell,function = "gpio";
};
clearfog_spi1_cs_pins: spi1-cs-pins {
marvell,pins = "mpp55";
marvell,function = "spi1";
};
mikro_pins: mikro-pins {
/* int: mpp22 rst: mpp29 */
marvell,pins = "mpp22", "mpp29";
marvell,function = "gpio";
};
mikro_spi_pins: mikro-spi-pins {
marvell,pins = "mpp43";
marvell,function = "spi1";
};
mikro_uart_pins: mikro-uart-pins {
marvell,pins = "mpp24", "mpp25";
marvell,function = "ua1";
};
rear_button_pins: rear-button-pins {
marvell,pins = "mpp34";
marvell,function = "gpio";
};
};
&spi1 {
/*
* Add SPI CS pins for clearfog:
* CS0: W25Q32
* CS1:
* CS2: mikrobus
*/
pinctrl-0 = <&spi1_pins &mikro_spi_pins>;
pinctrl-names = "default";
status = "okay";
};
/*
+#define A38x_CUSTOMER_BOARD_1_MPP16_23 0x00400011
MPP18: gpio ? (pca9655 int?)
MPP19: gpio ? (clkreq?)
MPP20: gpio ? (sd0 detect)
MPP21: sd0:cmd x sd0
MPP22: gpio x mikro int
MPP23: gpio x switch irq
+#define A38x_CUSTOMER_BOARD_1_MPP24_31 0x22043333
MPP24: ua1:rxd x mikro rx
MPP25: ua1:txd x mikro tx
MPP26: i2c1:sck x mikro sck
MPP27: i2c1:sda x mikro sda
MPP28: sd0:clk x sd0
MPP29: gpio x mikro rst
MPP30: ge1:txd2 ? (config)
MPP31: ge1:txd3 ? (config)
+#define A38x_CUSTOMER_BOARD_1_MPP32_39 0x44400002
MPP32: ge1:txctl ? (unused)
MPP33: gpio ? (pic_com0)
MPP34: gpio x rear button (pic_com1)
MPP35: gpio ? (pic_com2)
MPP36: gpio ? (unused)
MPP37: sd0:d3 x sd0
MPP38: sd0:d0 x sd0
MPP39: sd0:d1 x sd0
+#define A38x_CUSTOMER_BOARD_1_MPP40_47 0x41144004
MPP40: sd0:d2 x sd0
MPP41: gpio x switch reset
MPP42: gpio ? sw1-1
MPP43: spi1:cs2 x mikro cs
MPP44: sata3:prsnt ? (unused)
MPP45: ref:clk_out0 ?
MPP46: ref:clk_out1 x switch clk
MPP47: 4 ? (unused)
+#define A38x_CUSTOMER_BOARD_1_MPP48_55 0x40333333
MPP48: tdm:pclk
MPP49: tdm:fsync
MPP50: tdm:drx
MPP51: tdm:dtx
MPP52: tdm:int
MPP53: tdm:rst
MPP54: gpio ? (pwm)
MPP55: spi1:cs1 x slic
+#define A38x_CUSTOMER_BOARD_1_MPP56_63 0x00004444
MPP56: spi1:mosi x mikro mosi
MPP57: spi1:sck x mikro sck
MPP58: spi1:miso x mikro miso
MPP59: spi1:cs0 x w25q32
*/