With 3a9752bbd2 and later changes to
ramips_set_preinit_iface() the default vlan config applied during
preinit was changed. These changes were made without updating the
default network config to ensure that vlan interfaces used for lan/wan
are still configured.
Fix the issue by using the default all LAN portmap and disabling not
connected switch ports using portdisable device tree parameter.
Signed-off-by: Mathias Kresin <dev@kresin.me>
With de51026515 the explicit tagging of
the CPU port was removed. This leads to a not working default network
config, with vlans enabled but disabled CPU tagging, for boards where
all switch ports are having the same role.
In case the ports are having different roles set, tagging is is set
implicit for the CPU port by ucidef_add_switch().
Signed-off-by: Mathias Kresin <dev@kresin.me>
Don't set the lan/wan interface when using ucidef_add_switch. This
results into a wan interface albeit all ports a annotated as lan ports.
ucidef_add_switch takes care of setting the correct lan/wan interface
according to the annotation of the ports.
Signed-off-by: Mathias Kresin <dev@kresin.me>
applied bb-final-ramips-add-zyxel-nbg-419n2.patch from
123serge123, found at https://yadi.sk/d/1ZV0lKJwbTE65;
see https://forum.openwrt.org/viewtopic.php?pid=246905#p246905,
modified slightly to fit to CC release and to new lede build
system: image/rt305x.mk include file is used now
changed NBG-419N2.dts format to fit style of other dts files
Signed-off-by: Klaus <k-laus@quantentunnel.de>
- CPU: MT7620A 580MHz
- Flash: 8MB - RAM: 64MB
- External PA+LNA on both WLAN2.4 and WLAN5
- 4x LAN ethernet and 1x WAN ethernet
Signed-off-by: Xuefu Lin <xuefulin@gmail.com>
Refresh patches for all targets that support kernel 4.4.
compile/run-tested on brcm2708/bcm2710 only.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Forgot to update kernel-version.mk, so updated patch. Compile-tested on x86/64 and ar71xx; run-tested on x86/64 and ar71xx.
Signed-off-by: Stijn Segers <francesco.borromini@inventati.org>
kmod-rt2x00-lib and kmod-mac80211 need to be removed, as they depend on
kmod-cfg80211. kmod-rt2800-pci should not be installed anyways.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Older busybox versions allowed using the local keyword outside of
functions, whereas 1.25.0 (which was introduced in 06fa1c46fc) do not
allow this anymore (leading to the following error when executing the
script: "file: local: line nn: not in a function").
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
The D-Link DIR-860L B1 has a flash chip which doesn't support
4K sectors. Since the DIR-860L B1 was the only mt7621 board which had
the 4k blocksize set, the 4K sector support is removed from the kernel
config.
I've checked the flash chips of all boards having set a 4K blocksize
again. This time I searched harder to finding bootlogs instead of
relying on wikis articles and/or the device tree source file.
The Planex MZK-DP150N has an en25q32b instead of the mentioned one in
the dts. Albeit the en25q32b supports 4K sectors, 4K support is not
enabled in the driver. Change the blocksize for this board back to 64K.
Reported-by: Russell Senior <russell@personaltelco.net>
Signed-off-by: Mathias Kresin <dev@kresin.me>
This is a follow up to 28110727f1
"ramips: set blocksize for 4MB devices". I've missed to include the
required changes of the kernel configs to enable 4K sector size
support.
The option is only enabled for targets having boards with 4k sector
size flash chips.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Only add them where they are actually required.
Should help with compatibility issues with stock U-Boot images that
access UBI
Signed-off-by: Felix Fietkau <nbd@nbd.name>
- quote the interface name
- remove call of not existing function
- remove the proto if it's the default proto
Signed-off-by: Mathias Kresin <dev@kresin.me>
Now that all seama images are using the new build code this seama recipe
used with the old build code can be dropped.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Set the blocksize for devices having only 4MB of flash for ramips
devices already using the new image build code.
Informations about the used flash chip are gathered from the OpenWrt
wiki, wikidevi, forums, OEM bootlogs or the compatible property in the
device tree source file.
The en25q32b from the AirLive Air3GII does not have 4k support in the
kernel.
For the following boards no information about the used flash chip could
be found and a 64k blocksize is assumed:
- Ralink V11ST-FE
- Ralink AP-RT3052-V22RW-2X2
- MediaTek MT7628 EVB
- MediaTek MT7621 EVB
- UPVEL UR-326N4G
- Buffalo WZR-AGL300NH
Signed-off-by: Mathias Kresin <dev@kresin.me>
1004kc is just a SMP capable 34kc, and GCC treats 24kc and 34kc exactly
the same and will generate identical code, so there is no need to tune
to 1004kc instead of 24kc.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Refresh patches for all targets that support kernel 4.4.
Compile-tested on all targets that use kernel 4.4 and aren't marked broken.
Runtime-tested on ar71xx, octeon and x86/64.
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
The image generation for TEW-691GR and TEW-692GR was broken since
79d02229 due to the move of the UMedia recipe to another Makefile.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Due to the missing phy-mode setting, the switch wasn't initialised.
The wireless requires an eeprom to work. Use the same mac addresses as
the stock firmware.
Signed-off-by: Mathias Kresin <dev@kresin.me>
The AR8327 initvals were not copied to the DTS during the switch from
mach file to device tree and broke the switch on the device.
The former used PORT6 related initvals were wrong and have been
corrected.
The phy mode setting for the switch was missing in the DTS as well.
The wireless requires an eeprom to work. The dual band wireless chips
have both bands enabled by default but only one band per chip is
working.
The stock firmware uses the following mac addresses:
LAN: AA:BB:CC:DD:EE:E4
WAN: AA:BB:CC:DD:EE:E4
2.4GHz: AA:BB:CC:DD:EE:E4
5 GHz: AA:BB:CC:DD:EE:E8
Assuming the mac address range :E4 to :E8 is reserved for this device,
the MAC addresses were reorder to have a unique MAC address for each
interface:
LAN: AA:BB:CC:DD:EE:E4
2.4GHz: AA:BB:CC:DD:EE:E4
WAN: AA:BB:CC:DD:EE:E5
5 GHz: AA:BB:CC:DD:EE:E8
Signed-off-by: Mathias Kresin <dev@kresin.me>
Fixes the following compiler warning:
Warning (reg_format): "reg" property in /ethernet@10100000/port@0 has invalid length (4 bytes) (#address-cells == 2, #size-cells == 1)
Warning (avoid_default_addr_size): Relying on default #address-cells value for /ethernet@10100000/port@0
Warning (avoid_default_addr_size): Relying on default #size-cells value for /ethernet@10100000/port@0
Signed-off-by: Mathias Kresin <dev@kresin.me>
Thunder Timecloud is a small NAS with MT7621A. It has 1 USB port and an
SD Card slot. There is no wireless cards.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Since the only difference between 24Kec and 24Kc is the addition of DSP
ASE support, and we don't use it anymore, there is no need to keep 24Kec
as a separate cpu type.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
There does not seem to be any meaningful difference in generated code.
This will save some time and space on snapshot builds
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Now that the "sysupgrade-nand" step is used by non-NAND targets as well,
rename it to "sysupgrade-tar" to make it more generic.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Introduce an optional parameter at the local set_usb_led and
set_wifi_led function such that they can take a triggering
device. If no parameter is passed, behaviour is unchanged.
Signed-off-by: P.Wassi <p.wassi@gmx.at>
* add gdma and hsdma kernel modules
* i2s support all ramips targets except rt288x
* i2s need gdma to transfer data
* add simple audio kernel module. it support device tree binding
Signed-off-by: Michael Lee <igvtee@gmail.com>
D-Link DCH-M225 is based on Mediatek MT7620 with 64MB ram, 8MB flash,
3.5mm audio out support. but no ethernet and usb ports.
so you must default enable wifi.
Signed-off-by: Michael Lee <igvtee@gmail.com>
The NixCore X1 is a Ralink/MediaTek rt5350 WiFi Module.
http://nixcores.com/
Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
Acked-by: Drew Gaylo <drew@nixcores.com>
The partition size is wrong, leading to out-of-disk-space even on no/moderate use.
Upstream fix from vendor: 2f25eb57ed
Suggested fix for openwrt: https://dev.openwrt.org/ticket/20321
Signed-off-by: Rene Treffer <treffer@measite.de>
Pinmux for rgmii needs to be set to rgmii, not gpio.
Hide the ESW switch on boot (using new rgmii esw devicetree attribute).
Also add a Sitecom-specific profile, since the image needs to include
the rtl8366 kernel driver.
Signed-off-by: Tobias Diedrich <ranma+openwrt@tdiedrich.de>
Commit "kernel: mtdsplit: calculate kernel partition precisely for Seama"
changed the kernel partition to only contain the kernel itself and not
the Seama header. Adjust the fixseama call to match what is used on
brcm53xx.
This fixes failing to boot a second time after flashing the factory image
on the affected devices.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
Reviewed-by: Jo-Philipp Wich <jo@mein.io>
The ZBT APE522II is a dual-radio outdoor CPE based on the MT7620a SoC. It has
64 MB RAM, 8 MB flash, 2 Fast Ethernet ports via internal switch (one with
802.3af 48V PoE support), a 802.11b/g/n SoC 2.4 GHz radio and an 802.11a/n/ac
MT7612E-based 5 GHz radio.
Signed-off-by: Roger Pueyo Centelles <roger.pueyo@guifi.net>
* add rt_i2c structure to store driver data
* rewrite read/write check function and add i2c error status check.
so we don't need to wait until time out.
* add 10 bits address support. according to the data sheet i think
it is possible. but i haven't verify it.
* the most important is start transfer only need once. otherwise
it cause I2C_STARTERR status.
* add set i2c clock speed register by dts options "clock-frequency".
not just hard code it.
* add mt7621 i2c driver. i just copy i2c-ralink.c and change register
names. and the hardware don't support error status. so i remove it.
but the logic is the same.
Signed-off-by: Michael Lee <igvtee@gmail.com>
Commit 9ff8928bb9 renamed the snd-soc-mt7620-i2s
driver and dropped snd-soc-mt7620-wm8960 which selected CONFIG_SND_SOC_WM8960
breaking all ramips builds due to undefined kernel config symbols.
Rework the kmod-sound-mt7620 package to explicitely select the
CONFIG_SND_SOC_WM8960 symbols and change it to bundle the renamed .ko file.
Also remove the @BROKEN flag and exclude it on the rt288x subtarget instead.
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
DuZun DM06 is a develop board based on mt7628
64M RAM, 8M SPI Flash, 1 WAN, 1 LAN.
wm8960 codec with line out, line in and speaker output.
Signed-off-by: Michael Lee <igvtee@gmail.com>
* remove mt7620-wm8960.c use simple card and DTS to do it
* add old chips support
* add 12Mhz refclk setup. this is hard code. need use clock framework
rewrite it
* add interrupt error status support for debug. default disable it.
because it cause to many interrupts
* add setup bclk suport not hard code it
* add 24 bits support for mt7628. not verified
* use regmap api to control registers
* add txdma-req/rxdma-req DTS params for DMA use
Signed-off-by: Michael Lee <igvtee@gmail.com>
* add rt_i2c structure to store driver data
* rewrite read/write check function and add i2c error status check.
so we don't need to wait until time out.
* add 10 bits address support. according to the data sheet i think
it is possible. but i haven't verify it.
* the most important is start transfer only need once. otherwise
it cause I2C_STARTERR status.
* add set i2c clock speed register by dts options "clock-frequency".
not just hard code it.
* add mt7621 i2c driver. i just copy i2c-ralink.c and change register
names. and the hardware don't support error status. so i remove it.
but the logic is the same.
Signed-off-by: Michael Lee <igvtee@gmail.com>
* fix compiler error. device_control operation not support now.
* add old chips support 8 channels. new chips support 16 channels.
* add mt7621 hsdma driver. data sheet says it has two channels.
but after test only one channel support.
* add memory to memory DMA support. i use dmatest kernel module to
verify this function. on rt305x it will copy more data. on mt7621
only two channels can works at the same time. these two chips
maybe have hardware bugs. because on other chips don't have these bugs.
* use tasklet to handle remaining dma requests.
Signed-off-by: Michael Lee <igvtee@gmail.com>
- Use default number of uarts (2) for rt288x/rt305x/rt3883/mt7620.
- Allow up to 3 uarts on MT7621 and MT7628.
- Remove unneeded SERIAL_8250_RT288X for MT7628.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
The Widora board is similar to the Linkit 7688 but features a larger flash
capacity.
Signed-off-by: Yuan Chenmang <771992497@qq.com>
[Jo-Philipp Wich: Reword commit message, cleanup initial PR]
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
The previous image creation code would have failed if the
unpadded kernel uImage size was less than 64 bytes from the
next erase block boundary. Fix that.
Signed-off-by: Joseph C. Lehner <joseph.c.lehner@gmail.com>
The bootloader on this device expects the kernel partition to end
on a 64k boundary. The last 64 byte of the kernel partition must
contain a valid uImage header (the fakeroot partition).
Signed-off-by: Joseph C. Lehner <joseph.c.lehner@gmail.com>
Currently, for RT5350 and MT7628, esw is marked as compatible with
"ralink,rt3050-esw". While this is true, the switches within RT5350
and MT7628 actually support more functionality than the RT3050 switch.
One such example is per-VLAN untagging, which is an important feature.
RT3352 is another example of this, but it already has an additional
compatible property, which allows to differentiate it from RT3050.
This commit adds such more specific properties for RT5350 and MT7628
as well.
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
- disable all ethernet ports except port 0 on MPR-A2
Port 0 is the only ethernet port on this router, so disable all other PHYs in order to save power.
- don't use a VLAN for the single ethernet port of the MPR-A2
Like A5-V11, this router only has one ethernet port.
Signed-off-by: Cezary Jackiewicz <cezary@eko.one.pl>
This commit makes the following modifications to ramips dts files:
1. Add clkctrl node to all dtsi files (although not used for now)
2. Add clocks and clock-names properties to some nodes (usbphy, pci)
3. Add usbphy node for rt3050 (although not used for now)
4. Add clock-frequency to uart nodes in mt7621.dtsi and mt7628an.dtsi
These modifications, although not fully used at the moment, will make
it easier for FreeBSD to adopt and use LEDE ramips dts files with
minimal changes for easier maintenance.
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
Add node aliases to dtsi files.
Reword dts files so they're more in-line with upstream.
Fix some more warnings and errors reported by dtc
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
This patch introduces serial0 aliases in the ramips DTS files, which can
then be used to denote the active console instead of relying on bootargs.
Signed-off-by: Stanislav Galabov <sgalabov@gmail.com>
This router only has one ethernet port, so a VLAN is useless here, now that the rt3050 TCP bug that happened without VLANs has been fixed for a very long time.
Add this router to the VLAN-less config that is used by other single-port routers.
Also fix MAC address detection code since this router has no WAN port.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
Some routers only have one port, so eth0 is used without VLANs for them.
Revision r47720 introduced some changes, but wrongly confused "enable" with "reset".
VLANs need to be disabled for those routers, and the switch may be reset.
Fix this, by explicitly disabling VLANs instead of resetting the switch for these routers.
Also merge duplicate configuration for the "m2m".
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
The new rt3050 switch driver doesn't have problems with TCP when not
using VLANs.
This piece of code also broke failsafe for all routers where the LAN
port is not wired to port 0 of the internal switch.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
SVN-Revision: 49293
Port 0 is the only ethernet port on this router, so disable all other PHYs
in order to save power.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
SVN-Revision: 49292
Port 4 is the only ethernet port on this router, so disable all other PHYs
in order to save power.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
SVN-Revision: 49291
This patch allows configuring ports to be disabled in the device tree; this
saves power, since disabling ports here actually disables power to ethernet
PHYs.
Line 444 enables all ethernet ports, so line 487 is getting zero ports to be
disabled, except for port 5 in SoCs where this is not implemented as it will
be sticky disabled in register POC0. Because of this, the code will still read
the switch configuration and OR it to the device tree setting.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
SVN-Revision: 49290
Line 444 is actually enabling all switch ports by setting the disable bits
to 0. This needs to be done because the bootloader sets all ports to disabled
by default (which is the case for at least one router based on RT5350).
So, this patch fixes the comment in line 443.
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
SVN-Revision: 49289
The FCT2 esw register should be set to 0x2500C to have "unknown IPv6
multicast" packets broadcasted to every port, instead of dropped.
The previous value only let those packets go through ports 1 and 3.
"Unknown IPv6 multicast" packets include packets needed by ICMPv6 echo
requests addressed to well-known addresses, such as ff02::1 (MAC address
is 33:33:00:00:00:01 in this case).
Please note that by default ICMPv6 echo requests to ff02::1 are not replied
to by the router because of ip6tables considering those packets to be invalid.
But this is another bug/patch. ;)
Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>
SVN-Revision: 49287
add support for Planex MZK-EX750NP.
MZK-EX750NP is MT7620A and MT7610E based 11ac wifi repeater.
Built-in power supply.
64MiB RAM, 8MiB SPI Flash, non Wired Ethernet.
Signed-off-by: YuheiOKAWA <tochiro.srchack@gmail.com>
SVN-Revision: 49268
CS-QR10 is MT7620A based IP Camera.
the camera and sound does not work with kernel 4.4.
- camera chip is sn9c291.
- sound chip is wm8960.
Signed-off-by: YuheiOKAWA <tochiro.srchack@gmail.com>
SVN-Revision: 49234
Makes the patches apply again by fixing the white space broken patch.
This problem was introduced in r49212.
Closes#22248 and #22259
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
SVN-Revision: 49221
The WG3526 is the follow-up to the 2626 and is mostly the same, with the
excaption that the mt7602 has been replaced with the mt7603. The internal wifi
setup has also changed slightly. Based on my tests, everything that worked on
the 2626 works on the 3526 and with roughly the same performance.
v1->v2:
* Remove some references to 2626 that I had missed in the dts.
v2->v3:
* Update patch to match new file structure.
* Removed SD driver to be consistent with other MT7621 targets.
Signed-off-by: Kristian Evensen <kristian.evensen@gmail.com>
SVN-Revision: 49213
ELECOM WRH-300CR is MT7620N based very small Wi-Fi router with 64MiB
DDR2 SDRAM, 16MiB SPI Flash, one fast ethernet port, and (internal but
easy-to-access) UART.
it also has internal USB hub and USB card reader which provide one USB
port, one SD card slot, and one microSD card slot.
Signed-off-by: YuheiOKAWA <tochiro.srchack@gmail.com>
Signed-off-by: FUKAUMI Naoki <naobsd@gmail.com>
SVN-Revision: 49211
update DTS files to use jedec,spi-nor compatible string for m25p80 to fix probe issues.
Signed-off-by: YuheiOKAWA <tochiro.srchack@gmail.com>
SVN-Revision: 49209
Misc fixes for LinkIt 7688 board:
- Copy the right wireless firmware for the mt7688
- Add back '0065-mt7688-fixes.patch', left out after the move to Linux 4.4.
- Remove SPI_DEV from linux config which otherwise causes a massive warning
- Add wmac to LINKIT7688.dts so wireless works
Signed-off-by: Adam Kent <adam@semicircular.net>
SVN-Revision: 49130
Currently the maximum image size defaults to 8Mbyte even though this model has 16Mbyte of flash memory.
Tested and works on my device.
Signed-off-by: Daniel Engberg <daniel.engberg.lists@pyret.net>
SVN-Revision: 49129
Remove unnecessary packages to reduce image size so it fits in initramfs (to enable upgrading from factory firmware).
Signed-off-by: Roman Yeryomin <roman@advem.lv>
SVN-Revision: 49127
- all subtarget specific defines are in their own files
- common defines left in main Makefile
- each subtarget makefile idefed with SUBTARGET
- all subtargets compile tested
- few seems to be broken/unneeded things marked with FIXME
Signed-off-by: Roman Yeryomin <roman@advem.lv>
SVN-Revision: 49104
According to the calling convention of the o32 ABI the
caller function must reserve stack space for $a0-$a3
registers in case the callee needs to save its arguments.
The assembly startup code does not reserve stack space
for these registers thus when the main C function needs
to save its arguments, that will cause a stack overflow.
Fix the assembly code to reserve stack space for the
registers to avoid that.
Untested. It seems that the lzma-loader is not used at all?
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 49062
1) Use leds to indicate:
Red - Power
Amber - Radio On
Blue - Wifi associated
2) Add profile to default build group for MT7628 subtarget
Signed-off-by: Noble Pepper <openwrtmail@noblepepper.com>
SVN-Revision: 49045
Xiaomi MiWiFi Nano is based on Mediatek MT7628 with 64MB ram 16MB flash
Signed-off-by: Noble Pepper <openwrtmail@noblepepper.com>
v3 includes changes suggested by L. D. Pinney & Karl Palsson-
Eliminate en25q64 (4MB) flash chip
Alphabetization
Remove hyphen in model
Rename profile from miwifinano.mk to xiaomi.mk
Add gpios that are attached to leds
SVN-Revision: 49024
This patch adds support for GL-MT750.
GL-MT750 is powered by MT7620A and MT7610e, dual band 802.11ac, 2.4G 300Mbps and 5G 450Mbps.
It has 5 LANs, MMC interface, USB, a lot of IOs and PoE support.
SVN-Revision: 48994
This patch adds support for GL-MT300N.
GL-MT300N is powered by MT7620N with 16MB flash, 64MB RAM,
2 LANs, USB, UART, GPIO and PoE support.
SVN-Revision: 48993
This patches adds support for GL-MT300A.
GL-MT300A is powered by MT7620A. It has 16MB flash, 128MB RAM,
Two LANs, USB, UART and MMC daughter board.
SVN-Revision: 48992
add support for Planex MZK-WDPR.
MZK-WDPR(MZK-WDPR-R01) is internet radio tuner.
This patch is "network board" in MZK-WDPR.
LCD board is non OpenWrt Platform.
Signed-off-by: YuheiOKAWA <tochiro.srchack@gmail.com>
SVN-Revision: 48968
This patch adds profiles and support for building factory and
sysupgrade images for JHR-N805R, JHR-N825R and JHR-N926R.
Signed-off-by: Reinhard Max <reinhard@m4x.de>
Reviewed-by: Torsten Duwe <duwe@lst.de>
SVN-Revision: 48906
This patch adds support for JHR-N805R, JHR-N825R and JHR-N926R to
various scripts in the base-files directory.
Signed-off-by: Reinhard Max <reinhard@m4x.de>
Reviewed-by: Torsten Duwe <duwe@lst.de>
SVN-Revision: 48905
Add a device tree for JCG JHR-N825R
This router is based on a RT3052 and has 4MB of CFI flash and 32MB of
SDRAM. As a special feature, it comes with a two digit seven segment
display that is connected to a pair of daisy-chained 74164 shift
registers that can be controlled via GPIOs.
For details, see https://wikidevi.com/wiki/JCG_JHR-N825R .
Signed-off-by: Reinhard Max <reinhard@m4x.de>
Reviewed-by: Torsten Duwe <duwe@lst.de>
SVN-Revision: 48904
