![Thomas Petazzoni](/assets/img/avatar_default.png)
Really, what we meant by regulator-always-on is that the regulators are already turned on by the bootloader, for which regulator-boot-on is a better description. A net advantage of using regulator-boot-on is that the regulator is not touched at boot time by the kernel, which avoids having the hard drives spinning down and then up again, taking several (~5) seconds of additional boot time. In addition, there is no need to have such properties on the child regulators used for SATA. Having it on the parent regulator that really controls the GPIO is sufficient. Without the patch: [ 3.945866] ata2: SATA link down (SStatus 0 SControl 300) [ 3.995862] ata3: SATA link down (SStatus 0 SControl 300) [ 4.005863] ata4: SATA link down (SStatus 0 SControl 300) [ 9.125861] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 9.144575] ata1.00: ATA-8: WDC WD5003ABYX-01WERA1, 01.01S02, max UDMA/133 [ 9.151471] ata1.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32) (and you can hear the disk spinning down and up during this 5.1 seconds delay) With the patch: [ 3.945988] ata2: SATA link down (SStatus 0 SControl 300) [ 4.005980] ata4: SATA link down (SStatus 0 SControl 300) [ 4.011404] ata3: SATA link down (SStatus 0 SControl 300) [ 4.145978] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300) [ 4.153701] ata1.00: ATA-8: WDC WD5003ABYX-01WERA1, 01.01S02, max UDMA/133 [ 4.160597] ata1.00: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32) Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
413 lines
9.8 KiB
Plaintext
413 lines
9.8 KiB
Plaintext
/*
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* Device Tree file for Marvell Armada 385 development board
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* (RD-88F6820-GP)
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*
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* Copyright (C) 2014 Marvell
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*
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* Gregory CLEMENT <gregory.clement@free-electrons.com>
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*
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* This file is dual-licensed: you can use it either under the terms
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* of the GPL or the X11 license, at your option. Note that this dual
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* licensing only applies to this file, and not this project as a
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* whole.
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*
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* a) This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without
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* any warranty of any kind, whether express or implied.
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*
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* Or, alternatively,
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*
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* b) Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/dts-v1/;
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#include "armada-388.dtsi"
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#include <dt-bindings/gpio/gpio.h>
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/ {
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model = "Marvell Armada 388 DB-88F6820-GP";
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compatible = "marvell,a388-gp", "marvell,armada388", "marvell,armada380";
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chosen {
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stdout-path = "serial0:115200n8";
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};
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memory {
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device_type = "memory";
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reg = <0x00000000 0x80000000>; /* 2 GB */
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};
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soc {
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ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
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MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000
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MBUS_ID(0x09, 0x19) 0 0xf1100000 0x10000
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MBUS_ID(0x09, 0x15) 0 0xf1110000 0x10000>;
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internal-regs {
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spi@10600 {
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pinctrl-names = "default";
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pinctrl-0 = <&spi0_pins>;
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status = "okay";
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spi-flash@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "st,m25p128", "jedec,spi-nor";
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reg = <0>; /* Chip select 0 */
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spi-max-frequency = <50000000>;
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m25p,fast-read;
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};
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};
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i2c@11000 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c0_pins>;
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status = "okay";
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clock-frequency = <100000>;
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expander0: pca9555@20 {
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compatible = "nxp,pca9555";
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pinctrl-names = "default";
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pinctrl-0 = <&pca0_pins>;
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interrupt-parent = <&gpio0>;
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interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
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gpio-controller;
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#gpio-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x20>;
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};
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expander1: pca9555@21 {
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compatible = "nxp,pca9555";
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pinctrl-names = "default";
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interrupt-parent = <&gpio0>;
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interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
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gpio-controller;
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#gpio-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x21>;
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};
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eeprom@57 {
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compatible = "atmel,24c64";
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reg = <0x57>;
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};
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};
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serial@12000 {
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/*
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* Exported on the micro USB connector CON16
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* through an FTDI
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*/
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_pins>;
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status = "okay";
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};
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/* GE1 CON15 */
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ethernet@30000 {
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pinctrl-names = "default";
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pinctrl-0 = <&ge1_rgmii_pins>;
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status = "okay";
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phy = <&phy1>;
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phy-mode = "rgmii-id";
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};
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/* CON4 */
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usb@58000 {
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vcc-supply = <®_usb2_0_vbus>;
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status = "okay";
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};
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/* GE0 CON1 */
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ethernet@70000 {
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pinctrl-names = "default";
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/*
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* The Reference Clock 0 is used to provide a
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* clock to the PHY
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*/
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pinctrl-0 = <&ge0_rgmii_pins>, <&ref_clk0_pins>;
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status = "okay";
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phy = <&phy0>;
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phy-mode = "rgmii-id";
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};
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mdio@72004 {
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pinctrl-names = "default";
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pinctrl-0 = <&mdio_pins>;
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phy0: ethernet-phy@1 {
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reg = <1>;
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};
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phy1: ethernet-phy@0 {
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reg = <0>;
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};
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};
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sata@a8000 {
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pinctrl-names = "default";
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pinctrl-0 = <&sata0_pins>, <&sata1_pins>;
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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sata0: sata-port@0 {
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reg = <0>;
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target-supply = <®_5v_sata0>;
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};
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sata1: sata-port@1 {
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reg = <1>;
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target-supply = <®_5v_sata1>;
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};
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};
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sata@e0000 {
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pinctrl-names = "default";
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pinctrl-0 = <&sata2_pins>, <&sata3_pins>;
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status = "okay";
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#address-cells = <1>;
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#size-cells = <0>;
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sata2: sata-port@0 {
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reg = <0>;
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target-supply = <®_5v_sata2>;
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};
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sata3: sata-port@1 {
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reg = <1>;
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target-supply = <®_5v_sata3>;
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};
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};
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sdhci@d8000 {
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pinctrl-names = "default";
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pinctrl-0 = <&sdhci_pins>;
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no-1-8-v;
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/*
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* A388-GP board v1.5 and higher replace
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* hitherto card detection method based on GPIO
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* with the one using DAT3 pin. As they are
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* incompatible, software-based polling is
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* enabled with 'broken-cd' property. For boards
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* older than v1.5 it can be replaced with:
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* 'cd-gpios = <&expander0 5 GPIO_ACTIVE_LOW>;',
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* whereas for the newer ones following can be
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* used instead:
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* 'dat3-cd;'
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* 'cd-inverted;'
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*/
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broken-cd;
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wp-inverted;
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bus-width = <8>;
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status = "okay";
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};
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/* CON5 */
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usb3@f0000 {
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vcc-supply = <®_usb2_1_vbus>;
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status = "okay";
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};
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/* CON7 */
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usb3@f8000 {
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vcc-supply = <®_usb3_vbus>;
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status = "okay";
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};
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};
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pcie-controller {
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status = "okay";
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/*
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* One PCIe units is accessible through
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* standard PCIe slot on the board.
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*/
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pcie@1,0 {
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/* Port 0, Lane 0 */
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status = "okay";
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};
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/*
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* The two other PCIe units are accessible
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* through mini PCIe slot on the board.
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*/
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pcie@2,0 {
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/* Port 1, Lane 0 */
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status = "okay";
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};
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pcie@3,0 {
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/* Port 2, Lane 0 */
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status = "okay";
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};
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};
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gpio-fan {
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compatible = "gpio-fan";
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gpios = <&expander1 3 GPIO_ACTIVE_HIGH>;
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gpio-fan,speed-map = < 0 0
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3000 1>;
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};
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};
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reg_usb3_vbus: usb3-vbus {
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compatible = "regulator-fixed";
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regulator-name = "usb3-vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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regulator-always-on;
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gpio = <&expander1 15 GPIO_ACTIVE_HIGH>;
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};
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reg_usb2_0_vbus: v5-vbus0 {
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compatible = "regulator-fixed";
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regulator-name = "v5.0-vbus0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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regulator-always-on;
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gpio = <&expander1 14 GPIO_ACTIVE_HIGH>;
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};
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reg_usb2_1_vbus: v5-vbus1 {
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compatible = "regulator-fixed";
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regulator-name = "v5.0-vbus1";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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enable-active-high;
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regulator-always-on;
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gpio = <&expander0 4 GPIO_ACTIVE_HIGH>;
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};
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reg_sata0: pwr-sata0 {
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compatible = "regulator-fixed";
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regulator-name = "pwr_en_sata0";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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enable-active-high;
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regulator-boot-on;
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gpio = <&expander0 2 GPIO_ACTIVE_HIGH>;
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};
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reg_5v_sata0: v5-sata0 {
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compatible = "regulator-fixed";
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regulator-name = "v5.0-sata0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <®_sata0>;
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};
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reg_12v_sata0: v12-sata0 {
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compatible = "regulator-fixed";
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regulator-name = "v12.0-sata0";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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vin-supply = <®_sata0>;
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};
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reg_sata1: pwr-sata1 {
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regulator-name = "pwr_en_sata1";
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compatible = "regulator-fixed";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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enable-active-high;
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regulator-boot-on;
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gpio = <&expander0 3 GPIO_ACTIVE_HIGH>;
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};
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reg_5v_sata1: v5-sata1 {
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compatible = "regulator-fixed";
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regulator-name = "v5.0-sata1";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <®_sata1>;
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};
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reg_12v_sata1: v12-sata1 {
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compatible = "regulator-fixed";
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regulator-name = "v12.0-sata1";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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vin-supply = <®_sata1>;
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};
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reg_sata2: pwr-sata2 {
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compatible = "regulator-fixed";
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regulator-name = "pwr_en_sata2";
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enable-active-high;
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regulator-boot-on;
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gpio = <&expander0 11 GPIO_ACTIVE_HIGH>;
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};
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reg_5v_sata2: v5-sata2 {
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compatible = "regulator-fixed";
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regulator-name = "v5.0-sata2";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <®_sata2>;
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};
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reg_12v_sata2: v12-sata2 {
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compatible = "regulator-fixed";
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regulator-name = "v12.0-sata2";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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vin-supply = <®_sata2>;
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};
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reg_sata3: pwr-sata3 {
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compatible = "regulator-fixed";
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regulator-name = "pwr_en_sata3";
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enable-active-high;
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regulator-boot-on;
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gpio = <&expander0 12 GPIO_ACTIVE_HIGH>;
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};
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reg_5v_sata3: v5-sata3 {
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compatible = "regulator-fixed";
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regulator-name = "v5.0-sata3";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <®_sata3>;
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};
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reg_12v_sata3: v12-sata3 {
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compatible = "regulator-fixed";
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regulator-name = "v12.0-sata3";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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vin-supply = <®_sata3>;
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};
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};
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&pinctrl {
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pca0_pins: pca0_pins {
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marvell,pins = "mpp18";
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marvell,function = "gpio";
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};
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};
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