Panasonic Switch-M24eG (PN28240K)

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ES Networks 24 Port L2 Switching Hub
Homepage Product page
3rd Party Firmware
dd-wrt Status Unknown
OpenWrt Partial Support
Tomato any flavor Incompatible
Gargoyle Status Unknown
Platform
Brand • Model • Rev Panasonic Switch-M24eG
Model part number PN28240K
CPU1 checkY Realtek RTL8382M
CPU1 Type MIPS 4KEc
CPU1 Speed 500 MHz
Flash1 Chip Macronix MX25L25635FMI-10G
Flash1 Size 32 MiB 33,554,432 B <br />262,144 Kib <br />32,768 KiB <br />256 Mib <br />0.0313 GiB <br /> (SPI NOR)
RAM1 Size 128 MiB 134,217,728 B <br />1,048,576 Kib <br />131,072 KiB <br />1,024 Mib <br />0.125 GiB <br /> (DDR3)
RAM1 Chip Winbond W631GG8KB-15
ETH chip1 Realtek RTL8382M
ETH chip2 Realtek RTL8218B
ETH chip3 Realtek RTL8218FB
Switch Realtek RTL8382M
Ethernet Port Count 24-1GbE
Ethernet connector 8P8C
Wired Standard IEEE 802.3i/3u/3ab
Auto-MDIX supported
Jumbo frame yes
Switch Class managed

Ethernet OUI: none specified

Expansion IF types SFP
SFP ports 2
Stock bootloader U-Boot
Power 100-240 VAC ~ 50/60 Hz, 0.5 A
Connector type C13
Serial Port (UART) yes, 15V TTL, (9600 8N1)
3rd Party Firmware Support OpenWrt • (List | Dev | DLs)
 Switch brandSwitch2 brand
Panasonic Switch-M16eG (PN28160K)Realtek
Panasonic Switch-M24eG (PN28240K)Realtek
Panasonic Switch-M48eG (PN28480K)Realtek
Panasonic Switch-M8eG (PN28080K)Realtek

For a list of all currently documented Realtek chipsets with specifications, see Realtek.

For a list of all currently documented Panasonic devices with specifications, see Panasonic.

Overview

Specification

  • SoC: Realtek RTL8382M
  • Flash: Macronix MX25L25635FMI-10G (32MB, SPI NOR)
  • RAM: Winbond W631GG8KB-15 (128MB, DDR3)
  • Ethernet: 16x 1GbE ports, 2x SFP slot
Ports 1-8: TP, RTL8218B (PHY)
Ports 9-16: TP, RTL8218FB (SoC)
Ports 17-24: TP, RTL8218FB (PHY)
Port 23-24: TP/SFP Combo
  • UART: RS-232 port on the front panel (RJ-45)
Pin: 3:TX, 4:GND, 5:GND, 6:RX (RJ-45) 9600N8
  • Power: 100-240 VAC, 50/60 Hz, 0.5 A
Plug: IEC 60320-C13
  • Stock OS: VxWorks based
  • LEDs/Keys: 7x / 1x

Flashing

Flashing OpenWrt

Target: realtek
Subtarget: rtl838x
Package architecture: mips_4kec
Supported Since Commit
Support started version: 23.05.0
Current supported version: 25.12.1
Unsupported Functions:
Combo SFP (RTL8218FB)
LAN Hardware: Realtek RTL8382M, Realtek RTL8218B, Realtek RTL8218FB
LAN Comment: port 23-24 are RJ45/SFP (Combo)
WLAN Hardware: none
WLAN Comment: No WLAN
Installation method(s):
see git-commit
Recovery method(s):
see git-commit
git • >>
realtek: add support for Panasonic Switch-M24eG PN28240K
Panasonic Switch-M24eG PN28240K is a 24 + 2 port gigabit switch, based on
RTL8382M.

Specification:

- SoC           : Realtek RTL8382M
- RAM           : DDR3 128 MiB (Winbond W631GG8KB-15)
- Flash         : SPI-NOR 32 MiB (Macronix MX25L25635FMI-10G)
- Ethernet      : 10/100/1000 Mbps x24 + 2
  - port  1-8   : TP, RTL8218B
  - port  9-16  : TP, RTL8218B (SoC)
  - port 17-24  : RTL8218FB
    - port 17-22: TP
    - port 23-24: TP/SFP (Combo)
- LEDs/Keys     : 7x / 1x
- UART          : RS-232 port on the front panel (connector: RJ-45)
  - 3:TX, 4:GND, 5:GND, 6:RX (pin number: RJ-45)
  - 9600n8
- Power         : 100-240 VAC, 50/60 Hz, 0.5 A
  - Plug        : IEC 60320-C13
- Stock OS      : VxWorks based

Flash instruction using initramfs image:

1.  Prepare the TFTP server with the IP address 192.168.1.111
2.  Rename the OpenWrt initramfs image to "0101A8C0.img" and place it to
    the TFTP directory
3.  Download the official upgrading firmware (ex: pn28240k_v30000.rom)
    and place it to the TFTP directory
4.  Boot M24eG and interrupt the U-Boot with Ctrl + C keys
5.  Execute the following commands and boot with the OpenWrt initramfs
    image

    rtk network on
    tftpboot 0x81000000
    bootm

6.  Backup mtdblock files to the computer by scp or anything and reboot
7.  Interrupt the U-Boot and execute the following commands to re-create
    filesystem in the flash

    ffsmount c:/
    ffsfmt c:/

    this step takes a long time, about ~ 4 mins

8.  Execute the following commands to put the official images to the
    filesystem

    updatert <official image>

    example:

      updatert pn28240k_v30000.rom

    this step takes about ~ 40 secs

9.  Set the environment variables of the U-Boot by the following commands

    setenv loadaddr 0xb4e00000
    setenv bootcmd bootm
    saveenv

10: Download the OpenWrt initramfs image and boot with it

    tftpboot 0x81000000 0101A8C0.img
    bootm

11: On the initramfs image, download the sysupgrade image and perform
    sysupgrade with it

    sysupgrade <imagename>

12: Wait ~ 120 seconds to complete flashing

Known Issues:

- 2x SFP ports are provided as combo ports by the RTL8218FB chip, but the
  phy driver has no support for it. Currently, only TP ports work by the
  RTL8218D support.

Note:

- "Switch-M24eG" is a model name, and "PN28240K" is a model number.
  Switch-M24eG has an another (old) model number ("PN28240"), it's not a
  Realtek based hardware.

- Switch-M24eG has a "POWER" LED (Green), but it's not connected to any
  GPIO pin.

- U-Boot checks the runtime images in the flash when booting and fails
  to execute "bootcmd" variable if the images are not existing.

- A filesystem is formed in the flash (0x100000-0x1DFFFFF) on the stock
  firmware and it includes the stock images, configuration files and
  checksum files. It's unknown format, can't be managed on the OpenWrt.
  To get the enough space for OpenWrt, move the filesystem to the head
  of "fs_reserved" partition by execution of "ffsfmt" and "updatert".

- A GPIO pin on PCA9539 is used for resetting external RTL8218B phy and
  RTL8218FB phy.
  This should be specified as "reset-gpios" property in MDIO node, but
  the current configuration of RTL8218B phy in the phy driver seems to
  be incomplete and RTL8218FB won't be configured on RTL8218D support.
  So, ethernet ports on these phys will be broken after hard-resetting.
  At the moment, configure this pin as gpio-hog to avoid breaking by
  resetting.

Back to the stock firmware:

1. Delete "loadaddr" variable and set "bootcmd" to the original value

   on U-Boot:

     setenv loadaddr
     setenv bootcmd 'bootm 0x81000000'

   on OpenWrt:

     fw_setenv loadaddr
     fw_setenv bootcmd 'bootm 0x81000000'

2. Perform reset or reboot

  on U-Boot:

    reset

  on OpenWrt:

    reboot

See also