General hardware info:
----------------------
D-Link DGS-1210-28P rev. F1 is a switch with 24 ethernet ports and 4
combo ports, all ports Gbit capable. It is based on a RTL8382 SoC
@500MHz, DRAM 128MB and 32MB flash. 24 ethernet ports are 802.3af/at PoE
capable with a total PoE power budget of 193W.
Power over Ethernet:
--------------------
The PSE hardware consists of three BCM59121 PSE chips, serving 8 ports
each. They are controlled by a Nuvoton MCU. In order to enable PoE, the
realtek-poe package is required. It is installed by default, but
currently it requires the manual editing of /etc/config/poe. Keep in
mind that the port number assignment does not match on this switch,
alway 8 ports are in reversed order: 8-1, 16-9 and 24-17.
LEDs and Buttons:
-----------------
On stock firmware, the mode button is supposed to switch the LED
indicators of all port LEDs between Link Activity and PoE status. The
currently selected mode is visualized using the respective LEDs. PoE Max
indicates that the maximum PoE budget has been reached. Since there is
currently no support for this behavior, these LEDs and the mode button
can be used independently.
Serial connection:
------------------
The UART for the SoC (115200 8N1) is available via unpopulated standard
0.1" pin header marked J6. Pin1 is marked with arrow and square.
Pin 1: Vcc 3.3V
Pin 2: Tx
Pin 3: Rx
Pin 4: Gnd
OEM installation from Web Interface:
------------------------------------
1. Make sure you are booting using OEM in image 2 slot. If not,
switch to
image2 using the menus
System > Firmware Information > Boot from image2
Tools > reboot
2. Upload image in vendor firmware via Tools > Backup / Upgrade
Firmware > image1
3. Toggle startup image via System > Firmware Information > Boot
from
image1
4. Tools > reboot
Other installation methods not tested, but since the device shares the
board with the DGS-1210-28, the following should work:
Boot initramfs image from U-Boot:
---------------------------------
1. Press Escape key during `Hit Esc key to stop autoboot` prompt
2. Press CTRL+C keys to get into real U-Boot prompt
3. Init network with `rtk network on` command
4. Load image with `tftpboot 0x8f000000
openwrt-rtl838x-generic-d-link_dgs-1210-28p-f-initramfs-kernel.bin`
command
5. Boot the image with `bootm` command
Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/15938
Signed-off-by: Sander Vanheule <sander@svanheule.net>
The DGS-1210-28MP has a LM63 fan controller connected via i2c of the
RTL8231. The clock line is always low if the property
i2c-gpio,scl-open-drain is not set; with this property, the GPIO pin is
force-drive and the clock works as expected.
The LM63 is not configured by U-Boot, thus only manual fan control is
possible by settings pwm1_enable to "1" and writing the desired values to
pwm1.
The OEM firmware drives the fan from user mode and sets it up like this:
// PWM LUT/value r/w, PWM Clock = 1.4kHz
0x4a 0x28
// Tachometer spinup disabled, spin-up cycles bypassed
0x4b 0x00
// PWM Frequency = default
0x4d 0x17
// PWM Value (28)
0x4c 0x1c
// If > 0 C, use
0x50 0x00
// PWM = 28
0x51 0x1c
// If > 51 C, use
0x52 0x33
// PWM = 44
0x53 0x2e
// Set hysteresis to 100 = default
0x4f 0x03
// Turn on automatic mode and w/p the LUT values
0x4a 0x08
A thread in the OEM firmware polls the ALERT status register for fan
failures.
Unfortunately, the lm63 kernel driver does not perform any initialization
of the chip and it does not support changing some config registers (like
PWM frequency or LUT). Hence, we are stuck with the defaults and need to do
fan control in software.
Signed-off-by: Andreas Böhler <dev@aboehler.at>
Link: https://github.com/openwrt/openwrt/pull/15616
Signed-off-by: Sander Vanheule <sander@svanheule.net>
The DGS-1210-28 series was lacking full SFP support due to missing GPIOs.
Fortunately, the existing GPIO definitions of DGS-1210-52 match, this adds
the required i2c-gpio nodes to the DTS and allows hotplug SFP support.
Signed-off-by: Andreas Böhler <dev@aboehler.at>
Link: https://github.com/openwrt/openwrt/pull/15616
Signed-off-by: Sander Vanheule <sander@svanheule.net>
There is no need to keep a version specific dts directory.
Rename the folder to its standard location.
Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
