Commit Graph

10 Commits

Author SHA1 Message Date
Daniel Golle
1d412235a5 mediatek: mt7622: check firmware metadata
All mt7622 devices except for the UBI-variant of the mt7622-rfb1 carry
metadata appended to the sysupgrade image.
Add it for the mt7622-rfb1-ubi as well and check it on sysupgrade to
avoid accidentally flashing firmware for the wrong device (or variant
or future DEVICE_COMPAT_VERSION).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-03-04 02:57:19 +00:00
Daniel Golle
2151d89713 mediatek: mt7622: bpi-r64: fix sysupgrade on empty disk
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-03-01 19:35:08 +00:00
Daniel Golle
dfa0a38d1f mediatek: rework support for BananaPi BPi-R64
**What's new**

 * Bring support for the Bananapi BPi-R64 to the level desirable for
   a nice hackable routerboard.
 * Use ARM Trusted Firmware A from source. (goodbye binary preloader)
 * Use Das U-Boot from source. (see previous commit)
 * Assemble SD-card image using OpenWrt image-commands.
   (no gen_sd_cruz_foo.sh added, this is not Raspbian)
 * Updated kernel options to support root filesystem.
 * Updated DTS to match OpenWrt LAN ports, known LEDs, buttons, ...
 * Detect root device, handle sysupgrade, config restore, ...
 * Wire up (known) LEDs and buttons in OpenWrt-fashion.
 * Build one set of images from SD-card and eMMC.
 * Hopefully provide a good example of how things can be done right
   from scratch.

**Installation and images**

 * Have an empty SD-card at hand
 * Write stuff to the card, as root (card device is /dev/mmcblkX)
   - write header, gpt, bl2, atf, u-boot and recovery kernel:
     `cat *bpi-r64-boot-sdcard.img *bpi-r64-initramfs-recovery.fit > /dev/mmcblkX`
   - rescan partitions:
     `blockdev --rereadpt /dev/mmcblkX`
   - write main system to production partition:
     `cat *bpi-r64-squashfs-sysupgrade.fit > /dev/mmcblkXp5`

 * Installation to eMMC works using SD-card bootloader via TFTP
   When running OpenWrt of SD-card, issue this to trigger installation
   to eMMC:
   `fw_setenv bootcmd run emmc_init`
   Be prepared to serve the content of bin/targets/mediatek/mt7622 on
   TFTP server address 192.168.1.254.

**What's missing**

 * The red LED is always on, probably a hardware bug.
 * AHCI (probably needs DTS changes)
 * Ship SD-card image ready with every needed for eMMC install.
 * The eMMC has a second, currently unused boot partition. This would
   be ideal to store the WiFi EEPROM and Ethernet MAC address(es).
   @sinovoip ideas?

Thanks to Thomas Hühn @thuehn for providing the hardware!

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-28 04:15:44 +00:00
Daniel Golle
0235186182 mediatek: add alternative UBI NAND layout for Linksys E8450
The vendor flash layout of the Linksys E8450 is problematic as it uses
the SPI-NAND chip without any wear-leveling while at the same time
wasting a lot of space for padding.
Use an all-UBI layout instead, storing the kernel+dtb+squashfs in
uImage.FIT standard format in UBI volume 'fit', the read-write
overlay in UBI volume 'rootfs_data' as well as reduntant U-Boot
environments 'ubootenv' and 'ubootenv2', and a 'recovery'
kernel+dtb+initramfs uImage.FIT for dual-boot.

** WARNING **
THIS PROCEDURE CAN EASILY BRICK YOUR DEVICE PERMANENTLY IF NOT CARRIED
OUT VERY CAREFULLY AND EXACTLY AS DESCRIBED!

Step 0

 * Configure your PC to have the static IPv4 address 192.168.1.254/24
 * Provide bin/targets/mediatek/mt7622 via TFTP

Now continue EITHER with step 1A or 1B, depending on your preference
(and on having serial console wired up or not).

Step 1A (Using the vendor web interface (or non-UBI OpenWrt install))

In order to update to the new bootloader and UBI-based firmware,
use the web browser of your choice to open the routers web-interface
accessible on http://192.168.1.1

 * Navigate to
   'Configuration' -> 'Administration' -> 'Firmware Upgrade'

 * Upload the file
    openwrt-mediatek-mt7622-linksys_e8450-ubi-initramfs-recovery.itb
   and proceed with the upgrade.

 * Once OpenWrt comes up, use SCP to upload the new bootloader files to
   /tmp on the router:
    *-mt7622-linksys_e8450-ubi-preloader.bin
    *-mt7622-linksys_e8450-ubi-bl31-uboot.fip

 * Connect via SSH as you will now need to replace the bootloader in
   the Flash.

    ssh root@192.168.1.1
    (the usual warnings)

 * First of all, backup all the flash now:

    for mtd in /dev/mtdblock*; do
     dd if=$mtd of=/tmp/$(basename $mtd);
    done

 * Then use SCP to copy /tmp/mtdblock* from the router and keep them
   safe. You will need them should you ever want to return to the
   factory firmware!

 * Now flow the uploaded files:
    mtd -e /dev/mtd0 write /tmp/*linksys_e8450-ubi-preloader.bin /dev/mtd0
    mtd -e /dev/mtd1 write /tmp/*linksys_e8450-ubi-bl31-uboot.fip /dev/mtd1

   If and only if both writes look like the completed successfully
   reboot the router. Now continue with step 2.

Step 1B (Using the vendor bootloader serial console)

 * Use the serial to backup all /dev/mtd* devices before using the
   stock firmware (you got root shell when connected to serial).

 * Then reboot and select 'U-Boot Console' in the boot menu.

 * Copy the following lines, one by one:

tftpboot 0x40080000 openwrt-mediatek-mt7622-linksys_e8450-ubi-preloader.bin
tftpboot 0x40100000 openwrt-mediatek-mt7622-linksys_e8450-ubi-bl31-uboot.fip
nand erase 0x0 0x180000
nand write 0x40080000 0x0 0x180000
reset

Now continue with step 2

Step 2

Once the new bootchain comes up, the loader will initialize UBI and the
ubootenv volumes. It will then of course fail to find any bootable
volume and hence resort to load kernel via TFTP from server
192.168.1.254 while giving itself the address 192.168.1.1

The requested file is called
openwrt-mediatek-mt7622-linksys_e8450-ubi-initramfs-recovery.itb
and your TFTP server should provide exactly that :)
It will be written to UBI as recovery image and booted.
You can then continue and flash the production OS image, either
by using sysupgrade in the booted initramfs recovery OS, or by using
the bootloader menu and TFTP.

That's it. Go ahead and mess around with a bootchain built almost
completely from source (only DRAM calibration blobs are fitted in bl2,
and the irreplacable on-chip ROM loader remains, of course).
And enjoy U-Boot built with many great features out-of-the-box.

You can access the bootloader environment from within OpenWrt using the
'fw_printenv' and 'fw_setenv' commands. Don't be afraid, once you got
the new bootchain installed the device should be fairly unbrickable
(holding reset button before and during power-on resets things and
allows reflashing recovery image via TFTP)

Special thanks to @dvn0 (Devan Carpenter) for providing amazingly fast
infra for test-builds, allowing for `make clean ; make -j$(nproc)` in
less than two minutes :)

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2021-02-28 01:23:48 +00:00
John Crispin
aa94e34c1d mediatek: add Linksys E8450 support
The Linksys E8450, also known as Belkin RT3200, is a dual-band
IEEE 802.11bgn/ac/ax router based on MediaTek MT7622BV and
MediaTek MT7915AN chips.

FCC: K7S-03571 and K7S-03572

Hardware highlights:
 - CPU: MediaTek MT7622BV (2x ARM Cortex-A53 @ 1350 MHz max.)
 - RAM: 512MB DDR3
 - Flash: 128MB SPI-NAND (2k+64)
 - Ethernet: MT7531BE switch with 5 1000Base-T ports
             CPU port connected with 2500Base-X
 - WiFi 2.4 GHz: 802.11bgn 4T4R built-in antennas
                 MT7622VB built-in
 - WiFi   5 GHz: 802.11ac/ax 4T4R built-in antennas
                 MT7915AN chip on-board via PCIe
                 MT7975AN front-end
 - Buttons: Reset and WPS
 - LEDS: 3 user controllable LEDs, 4 wired to switch
 - USB: USB2.0, single port
 - no Bluetooth (supported by SoC, not wired on board)
 - Serial: JST PH 2.0MM 6 Pin connector inside device
            ----_____________----
           [  GND RX - TX  -  -  ]
            ---------------------
 - JTAG:   unpopulated ARM JTAG 20-pin connector (works)

This commit adds support for the device in a way that is compatible
with the vendor firmware's bootloader and dual-boot flash layout, the
resulting image can directly be flashed using the vendor firmware.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: John Crispin <john@phrozen.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2021-02-28 01:20:53 +00:00
John Crispin
5a5031e70b mediatek: generate UBI images for the rev board
Signed-off-by: John Crispin <john@phrozen.org>
2020-07-16 09:16:34 +02:00
John Crispin
f72a2b004c mediatek: add bpi-r64 emmc support
Signed-off-by: John Crispin <john@phrozen.org>
2020-06-07 17:53:37 +02:00
John Crispin
beb9820ed3 mediatek: consolidate partition names and settings
Signed-off-by: John Crispin <john@phrozen.org>
2020-04-06 07:07:42 +02:00
John Crispin
3a8dbcf5c2 mediatke: add support for elecom-wrc-2533gent
This commit adds support for the MT7622-based Elecom WRC-2533gent router,
with spi-nand storage and 512MB RAM.

The device has the following specifications:

* MT7622 (arm64 dual-core)
* 512MB RAM (DDR3)
* 4GB storage (spi-nand)
* 5x 1Gbps Ethernet (RTL8337C switch)
* 1x UART header
* 1x USB 3.0 port
* 5x LEDs
* 1x reset button
* 1x WPS button
* 1x slider switch
* 1x DC jack for main power (12V)

The following has been tested and is working:
* Ethernet switch
* 2.4g and 5g wifi
* USB 3.0 port
* sysupgrade
* buttons/leds

Not working:
* bluetooth firmware does not load even though it is present int he rootfs

Signed-off-by: John Crispin <john@phrozen.org>
2020-03-27 16:18:57 +01:00
Adrian Schmutzler
e845c094d5 mediatek: split base-files into subtargets
This splits some base-files across subtargets, as done previously
on ath79 and ramips and also introduced for mt7629 subtarget here
already. Most of the existing base-files content is specific to
mt7623.

While at it, apply the following fixes:
- Remove lots of trailing whitespaces
- Remove wildcard on unielec,u7623-02-emmc-512m
- Remove inconsistent quotation marks in cases

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Acked-by: John Crispin <john@phrozen.org>
2020-01-14 13:34:34 +01:00