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LS421DE DTB-kernel boots with some changes LS210
http://forum.buffalo.nas-central.org/viewtopic.php?f=89&t=44375
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Author:  sheg [ Wed Feb 08, 2017 5:56 am ]
Post subject:  LS421DE DTB-kernel boots with some changes LS210

I could not find LS210 device tree blob.

LS421DE blob is not in Linux Git Repository but one is in https://tohenk.wordpress.com/2014/12/11 ... n-ls421de/

I set gentoo-chroot stage3-armv7a_hardfp-20161129.tar.bz2 in LS210 and set ssh passwords, network and some services to runleves.

As in https://tohenk.wordpress.com/2014/12/11 ... n-ls421de/ I compiled DTB-kernel and installed it in sda1 uImage.buffalo.

It failed to boot.

After some configuration it boots.
CONFIG_CMDLINE="root=/dev/sda2 rw rootfstype=ext3"
# CONFIG_BLK_DEV_INITRD is not set

To get kernel config that really is running I set:
Enable access to .config through /proc/config.gz (IKCONFIG_PROC)
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y

Author:  oxygen8 [ Wed Feb 08, 2017 7:59 am ]
Post subject:  Re: LS421DE DTB-kernel boots with some changes LS210

Now you have created 3 posts on 3 different topics.
Please stay on one topic.

Author:  sheg [ Mon Jan 08, 2018 2:34 pm ]
Post subject:  Re: LS421DE DTB-kernel boots with some changes LS210

The scripts in https://tohenk.wordpress.com/2014/12/11 ... n-ls421de/
downloads kernel sources, cross-compiler and patches. Then the scripts patch the kernel, crosscompile it on a computer (in my case AMD64) and creates the file uImage.buffalo that can be copied to sda1 of buffalo-NAS.

The patches are applied like:
patch -p1 < 0001-ARM-atags-add-support-for-Marvell-s-u-boot.patch
patch -p1 < 0002-ARM-atags-fdt-retrieve-MAC-addresses-from-Marvell-bo.patch
patch -p1 < 0010-ignore-scm-state-in-local-version.patch
patch -p1 < 0011-buffalo-ls421de-dts.patch

(they are in https://github.com/tohenk/linkstation-mod)

For LS210 only patch -p1 < 0011-buffalo-ls421de-dts.patch is needed.

in chrooted gentoo of LS210 there is no need for these scripts.

Just in this way:
emerge =sys-kernel/vanilla-sources-4.9.74
cd /usr/src/linux
copy a known good kernel config to /usr/src/linux/.config
make silentoldconfig
patch -p1 < 0011-buffalo-ls421de-dts.patch
make
make modules
make modules_install
make armada-370-ls421de.dtb
cat arch/arm/boot/zImage arch/arm/boot/dts/armada-370-ls421de.dtb > zImage+armada-370-ls421de.dtb
mkimage -A arm -O linux -T kernel -C none -a 0x00008000 -e 0x00008000 -n 4.9.74.dtb -d zImage+armada-370-ls421de.dtb uimage-4.9.74-armada-370-ls421de
cp uimage-4.9.74-armada-370-ls421de /mnt/sda1/uImage.buffalo

Then put the HD to another computer and move buffalo system from sda2 to safe place and move gentoo to /mnt/sda2.

Then install HD back to LS210 and reboot.

Author:  sheg [ Mon Jan 08, 2018 3:02 pm ]
Post subject:  Re: LS421DE DTB-kernel boots with some changes LS210

patch -p1 < 0011-buffalo-ls421de-dts.patch creates a file armada-370-ls421de.dts

Code:
#armada-370-ls421de.dts
/*
 * Device Tree file for Buffalo LinkStation LS421DE
 *
 * Toha <tohenk@yahoo.com>
 *
 * 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 as
 *     published by the Free Software Foundation; either version 2 of the
 *     License, or (at your option) any later version.
 *
 *     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-370.dtsi"

/ {
   model = "Buffalo LinkStation LS421DE";
   compatible = "buffalo,ls421de", "marvell,armada370", "marvell,armada-370-xp";

   /* Ethernet aliases used to assign mac-address from ATAG */
   aliases {
      eth0 = &eth0;
      eth1 = &eth1;
   };

   chosen {
      bootargs = "earlyprintk";
      stdout-path = "serial0:115200n8";
   };

   memory {
      device_type = "memory";
      reg = <0x00000000 0x20000000>; /* 512 MB */
   };

   soc {
      ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
           MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000
           MBUS_ID(0x09, 0x01) 0 0xf1100000 0x10000>;

      pcie-controller {
         status = "okay";

         pcie@1,0 {
            /* Port 0, Lane 0 */
            status = "okay";
         };
         pcie@2,0 {
            /* Port 1, Lane 0 */
            status = "okay";
         };
      };

      internal-regs {
         rtc@10300 {
            status = "disabled";
         };

         spi@10600 {
            status = "okay";
            pinctrl-0 = <&spi0_pins2>;

            spi-flash@0 {
               #address-cells = <1>;
               #size-cells = <1>;
               compatible = "mx25l8005", "jedec,spi-nor";
               reg = <0>; /* Chip select 0 */
               spi-max-frequency = <50000000>;

               partition@00000 {
                  label = "u-boot";
                  reg = <0x00000 0xf0000>;
                  read-only;
               };
               partition@f0000 {
                  label = "u-boot-env";
                  reg = <0xf0000 0x10000>;
               };
            };
         };

         serial@12000 {
            status = "okay";
         };

         sata@a0000 {
            nr-ports = <2>;
            status = "okay";
         };

         timer@20300 {
            status = "okay";
         };

         mdio {
            pinctrl-0 = <&mdio_pins>;
            pinctrl-names = "default";

            phy0: ethernet-phy@0 {
               reg = <0>;
            };
         };

         ethernet@74000 {
            pinctrl-0 = <&ge1_rgmii_pins>;
            pinctrl-names = "default";
            status = "okay";
            phy = <&phy0>;
            phy-mode = "rgmii-id";
         };

         mvsdio@d4000 {
            pinctrl-0 = <&sdio_pins3>;
            pinctrl-names = "default";
            status = "okay";
            broken-cd;
         };

         usb@50000 {
            status = "okay";
         };

         usb@51000 {
            status = "okay";
         };

         i2c@11000 {
            status = "okay";
            clock-frequency = <100000>;

            rs5c372: rs5c372@32 {
               compatible = "rs5c372a";
               reg = <0x32>;
            };
         };

         nand@d0000 {
            status = "okay";
            num-cs = <1>;
            marvell,nand-keep-config;
            marvell,nand-enable-arbiter;
            nand-on-flash-bbt;

            partition@0 {
               label = "boot";
               reg = <0x0 0x02000000>;
            };
            partition@02100000 {
               label = "rootfs";
               reg = <0x02100000 0x1df00000>;
            };
         };
      };
   };

   regulators {
      compatible = "simple-bus";
      #address-cells = <1>;
      #size-cells = <0>;
      pinctrl-0 = <&usb_vbus>;
      pinctrl-names = "default";

      usb_power: regulator@1 {
         compatible = "regulator-fixed";
         reg = <1>;
         regulator-name = "USB Power";
         regulator-min-microvolt = <5000000>;
         regulator-max-microvolt = <5000000>;
         enable-active-high;
         regulator-always-on;
         regulator-boot-on;
         gpio = <&gpio0 5 GPIO_ACTIVE_LOW>;
      };
   };

   gpio-leds {
      compatible = "gpio-leds";
      pinctrl-names = "default";
      pinctrl-0 = <&power_led_pin &alarm_led_pin &info_led_pin
         &func_led_pin &sata1_led_pin &sata2_led_pin>;

      white-power-led {
         label = "ls421de:white:power";
         gpios = <&gpio1 22 GPIO_ACTIVE_HIGH>;
         default-state = "keep";
      };
      red-func-led {
         label = "ls421de:red:func";
         gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
         default-state = "off";
      };
      white-info-led {
         label = "ls421de:white:info";
         gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
         default-state = "off";
      };
      white-func-led {
         label = "ls421de:white:func";
         gpios = <&gpio1 27 GPIO_ACTIVE_HIGH>;
         default-state = "off";
      };
      red-hdd0err-led {
         label = "ls421de:red:hdd0err";
         gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
         default-state = "off";
      };
      red-hdd1err-led {
         label = "ls421de:red:hdd1err";
         gpios = <&gpio1 30 GPIO_ACTIVE_HIGH>;
         default-state = "off";
      };
   };

   gpio-keys {
      compatible = "gpio-keys";
      pinctrl-0 = <&power_switch &func_button>;
      pinctrl-names = "default";

      power-switch {
         label = "Power Switch";
         linux,code = <KEY_POWER>;
         gpios = <&gpio0 15 GPIO_ACTIVE_LOW>;
      };
      func-button {
         label = "Function Button";
         linux,code = <KEY_OPTION>;
         gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
      };
   };

   gpio-fan {
      compatible = "gpio-fan";
      pinctrl-0 = <&fan_low &fan_high &fan_lock>;
      pinctrl-names = "default";
      gpios = <&gpio0 14 GPIO_ACTIVE_LOW
               &gpio0 13 GPIO_ACTIVE_LOW>;
      gpio-fan,speed-map = <0    3
                            1500 2
                            3250 1
                            5000 0>;
      alarm-gpios = <&gpio0 10 GPIO_ACTIVE_HIGH>;
   };
};

&pinctrl {
   usb_vbus: usb-vbus {
      marvell,pins = "mpp5";
      marvell,function = "gpo";
   };
   fan_lock: fan-lock {
      marvell,pins = "mpp10";
      marvell,function = "gpio";
   };
   fan_high: fan-high {
      marvell,pins = "mpp13";
      marvell,function = "gpio";
   };
   fan_low: fan-low {
      marvell,pins = "mpp14";
      marvell,function = "gpio";
   };
   power_switch: power-switch {
      marvell,pins = "mpp15";
      marvell,function = "gpio";
   };
   func_button: func-button {
      marvell,pins = "mpp16";
      marvell,function = "gpio";
   };
   power_led_pin: power-led-pin {
      marvell,pins = "mpp54";
      marvell,function = "gpo";
   };
   alarm_led_pin: alarm-led-pin {
      marvell,pins = "mpp55";
      marvell,function = "gpio";
   };
   info_led_pin: info-led-pin {
      marvell,pins = "mpp57";
      marvell,function = "gpio";
   };
   func_led_pin: func-led-pin {
      marvell,pins = "mpp59";
      marvell,function = "gpo";
   };
   sata1_led_pin: sata1-led-pin {
      marvell,pins = "mpp61";
      marvell,function = "gpo";
   };
   sata2_led_pin: sata2-led-pin {
      marvell,pins = "mpp62";
      marvell,function = "gpio";
   };
};


This all is in gentoo-LS210, nothing of buffalo left on disc.

EDIT: Still after compiling some 10 bootable kernels the patch is needed. Just copying the file armada-370-ls421de.dts to /usr/src/linux/arch/arm/boot/dts/ does not boot.

Yes it boots

Copying armada-370-ls421de.dts boots OK, but no ethernet. After connecting the HD to PC-something last line /var/log/dmesg shows:
10239996k
[ 34.903796] EXT4-fs (sda3): mounted filesystem with ordered data mode. Opts: (null)

Also acpid that has in /etc/acpi/power.sh to poweroff shutdowns the box by sliding the switch in the back. This is added by me.

Author:  oxygen8 [ Mon Jan 08, 2018 5:16 pm ]
Post subject:  Re: LS421DE DTB-kernel boots with some changes LS210

Quote:
copy a known good kernel config to /usr/src/linux/.config


What did you do at this point?

Author:  sheg [ Mon Jan 08, 2018 6:58 pm ]
Post subject:  Re: LS421DE DTB-kernel boots with some changes LS210

The earlier post: The config from running kernel /proc/config.gz

viewtopic.php?f=89&t=44377

It is good if it is running. /proc/config.gz is the proof.

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