Commit Graph

6 Commits

Author SHA1 Message Date
Linus Walleij
2ce206f27d bmips: inteno-xg6846: Add DSA LED definitions
This adds the LED definitons for the XG6846 DSA port LEDs.
These are standard properties compatible with the existing
Marvell 88e6xxx DT bindings and fully standardized so this
is fine to add. They will be used by the in-flight Marvell
88e6xxx LEDs support patch.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[add empty lines between leds, remove default-state="off"]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-08-14 19:25:42 +02:00
Linus Walleij
fb2eabfd6b bmips: inteno-xg6846: Add EEPROM node
For some troublesome devices it is necessary to obtain direct access
to the SFP module EEPROM so define it in the device tree.

Suggested-by: Paul Donald <newtwen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-08-14 11:29:40 +02:00
Linus Walleij
ff553bd00c bmips: inteno-xg6846: Activate USB port
Some versions of the Inteno XG6846 has a USB port mounted.
For these machines the corresponing USB port nodes need to
be enabled.

Suggested-by: Henrik Ginstmark <henrik@ginstmark.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[reorder DTS alphabetically]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-08-14 11:29:21 +02:00
Álvaro Fernández Rojas
21a5b3b540 bmips: refactor Inteno XG6846 device tree
Refactor Inteno XG6846 device tree to be in line with other bmips devices.
Also expose USB LED automatically.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2024-08-07 20:40:11 +02:00
Linus Walleij
219018185e bmips: Build U-Boot into the XG6846 target
It appears that the CFE boot loader found in the XG6846
cannot load kernels over a certain size, and the old
relocate hack is not working.

What to do? We can build a small U-Boot into the image,
make CFE boot that, place the kernel immediately after
U-Boot, and use U-Boot to boot the system instead.

The compiled u-boot.bin becomes around ~300KB and with
LZMA compression it will swiftly fit into 128KB, so
we use two 64KB erase blocks right after the CFE to
store an imagetag:ed U-Boot.

Reviewed-by: Paul Donald <newtwen+github@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-05-01 21:32:23 +02:00
Linus Walleij
212da4dd48 bmips: Add Inteno XG6846 target
This adds a device tree and build options for the XG6846
switch/router to the BMIPS target.

Hardware:
 - SoC: Broadcom BCM6328
 - CPU: BMIPS4350 V7.5
 - RAM: 64 MB DDR
 - NOR Flash: 16 MB parallel (CFE and OS)
 - Ethernet LAN: 4x 1Gbit
 - Ethernet WAN: 2x 1Gbit, fiber and TP
 - Buttons: reset
 - LEDs: 7 or 8, power and USB LEDs are GPIO-based, the
   LAN LEDs are controlled by the Marvell DSA Switch.
 - USB: on some versions
 - UART: yes

The device ODM (original device manufacturer) is XAVi
http://www.xavi.com.tw/

It is possible to boot the initramfs version
openwrt-bmips-bcm6328-inteno_xg6846-initramfs.elf from
CFE by interrupting the boot on the UART console and downloading
it from a TFTP server e.g.:
CFE> r 192.168.1.2:openwrt-bmips-bcm6328-inteno_xg6846-initramfs.elf

Installation to target flash is not possible using CFE because
the image becomes too big for the CFE version found in these
devices. A separate U-Boot two-stage solution exists for
actually booting the device.

This device is called a "managed ethernet switch" by the vendor
and "media converter" or "fiber modem" by some of the ISPs
using it: the main purpose is to convert fiber connections to
ethernet, most devices just act as switches bridging the
fiber SFP to ethernet TP.

The device has a Marvell MV88E6352 DSA switch managed by
a BCM6328 BMIPS SoC.

This port makes it possible to use the XG6846 to grab an IP
number from the fiber connection and use all four LAN
connections out, turning it into a proper router.

This support is based mostly on the observations by the people on
the forum thread "Help with Inteno XG6846" where users NPeca75,
mrhaav, systemcrash and csom helped out to reverse engineer the
device. Then I made it work on the BMIPS target, figured out
the two-level switch hierarchy and settings.

Link: https://forum.openwrt.org/t/help-with-inteno-xg6846/68276/14
Signed-off-by: Paul Donald <newtwen+github@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2024-05-01 21:30:26 +02:00