Specifications:
SOC: Atheros/Qualcomm QCA9557-AT4A @ 720MHz
RAM: 2x Winbond W9751G6KB-25 (128 MiB)
FLASH: Hynix H27U1G8F2BTR-BC TSOP48 ONFI NAND (128 MiB)
WIFI1: Atheros AR9550 5.0GHz (SoC)
WIFI2: Atheros AR9582-AR1A 2.4GHz
WIFI2: Atheros AR9582-AR1A 2.4GHz + 5GHz
PHYETH: Atheros AR8035-A, 802.3af PoE capable Atheros (1x Gigabit LAN)
LED: 1x Power-LED, 1 x RGB Tricolor-LED
INPUT: One Reset Button
UART: JP1 on PCB (Labeled UART), 3.3v-Level, 115200n8
(VCC, RX, TX, GND - VCC is closest to the boot set jumper
under the console pins.)
Flashing instructions:
Depending on the installed firmware, there are vastly different
methods to flash a MR18. These have been documented on:
<https://openwrt.org/toh/meraki/mr18>
Tip:
Use an initramfs from a previous release and then use sysupgrade
to get to the later releases. This is because the initramfs can
no longer be built by the build-bots due to its size (>8 MiB).
Note on that:
Upgrades from AR71XX releases are possible, but they will
require the force sysupgrade option ( -F ).
Please backup your MR18's configuration before starting the
update. The reason here is that a lot of development happend
since AR71XX got removed, so I do advise to use the ( -n )
option for sysupgrade as well. This will cause the device
to drop the old AR71xx configuration and make a new
configurations from scratch.
Note on LEDs:
The LEDs has changed since AR71XX. The white LED is now used during
the boot and when upgrading instead of the green tricolor LED. The
technical reason is that currently the RGB-LED is brought up later
by a userspace daemon.
(added warning note about odm-caldata partition. remove initramfs -
it's too big to be built by the bots. MerakiNAND -> meraki-header.
sort nu801's targets)
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
...and max flash offset
The mtdsplit parser was recently refactored
to allow the kernel to have custom image header magic.
Let's also do this for the lzma-loader
For example:
When implemented together,
this allows the kernel to "appear" to be a rootfs
by OEM software in order to write an image
that is actually kernel + rootfs.
At the same time,
it would boot to openwrt normally
by setting the same magic in DTS.
Both of the variables
have a default value that is unchanged
when not defined in the makefiles
This has no effect on the size of the loader
when lzma compressed.
Signed-off-by: Michael Pratt <mcpratt@pm.me>
In certain cases, the uncompressed initramfs image will overwrite
the lzma-loader, which is currently only 10 MB away from kernel image
start. To prevent this, change LZMA_TEXT_START to 24 MB, so loader
and compressed image have 8 MB at the end of RAM and uncompressed
image has 24 MB available.
This is only enabled for ath79 at the moment, as there we can be sure
that all devices have 32+ MB RAM and TARGET_INITRAMFS_COMPRESSION_LZMA
is not enabled there.
Despite, since lzma-loader is currently build specifically for ath79
anyway, there is no need to re-specify LOADADDR and LZMA_TEXT_START
in image/Makefile, so the values are set directly in
image/lzma-loader/Makefile and the overwrite in image/Makefile is
removed.
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Import all improvements made in the lzma-loader since development on the
ath79 target started.
This also reverts fe594bf90d ("ath79: fix loader-okli, lzma-loader"), as
is obsoleted by 2ad60168b6af ("ar71xx: lzma-loader: move padding workaround
to gzip step").
Likely, many of the changes should be ported to the ramips lzma-loader as
well, but I don't have a device to test this.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
booting will hang most of the times on tl-wr1043nd-v1 without a KERNEL_CMDLINE value
add anything as a placeholder as kernel command line is taken from DTS
Signed-off-by: Lucian Cristian <lucian.cristian@gmail.com>
This target aims to replace ar71xx mid-term. The big part that is still
missing is making the MMIO/AHB wifi work using OF. NAND and mikrotik
subtargets will follow.
Signed-off-by: John Crispin <john@phrozen.org>
