Fix bug that LEDE failed to boot with this message:
WARNING: CPU: 2 PID: 1 at drivers/spi/spi-mt7621.c:214
mt7621_spi_transfer_one_message+0x28c/0x620()
Signed-off-by: Yong-hyu, Ban <perillamint@gentoo.moe>
Use gpio.h definition of GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW. Remove unused backup partition to increase available JFFS space. As long as U-Boot env variable "bootcount" is < 3 (reset to 0 after boot by init script) SamKnow's U-Boot will not attempt to boot from the backup flash address (0xe30000).
Signed-off-by: Andrew Yong <me@ndoo.sg>
The Dlink DWR-512-B modem is a ralink 5350 processor based embedding
a 3G mini-pcie router.
The oem JBOOT bootloader has to be replaced by a RT5350 SDK
U-Boot such as https://github.com/stevenylai/ralink_sdk - U-Boot
configured for the RT5350 256MiB SDR.
Main reason to change the bootloader is the encrypted header used to
store the kernel image. In this way an image can only be generated
using the propietary binboy tool (included in the GPL distribution
from Dlink). The binboy tool doesn't allow to modify the kernel/rootfs
partition scheme. This is considered a big constraint (limited kernel
size and inefficient usage of flash space).
For interested people I pubblished the details of my investigation
about the encrypted firmware header here:
http://lists.infradead.org/pipermail/lede-dev/2016-October/003435.html
Signed-off-by: Giuseppe Lippolis <giu.lippolis@gmail.com>
Fix a typo in mt7621.dtsi compatible string. Disable spi, sdhci and pci
in mt7621.dtsi and enable the nodes in the indiviual board dts files.
The nodes require further device specific configuration anyway.
Remove the m25p80@0 spi child node from mt7621.dtsi and add the
chunked-io parameter to the individual board dts files. Fix the spi
flash compatible string for the WNDR3700V5.
Drop the mt7621-eval-board compatible string for all boards which are
not the eval board.
Drop the linux,modalias parameter from spi flash node.
Remove the xhci node from board files, it is already enabled in dtsi.
Disable xhci for boards not having usb ports populated.
Signed-off-by: Mathias Kresin <dev@kresin.me>
fix in sdhci Use ralink_soc == MT762X_SOC_MT7621AT instead of CONFIG_SOC_MT7621 which is
wrong and breaks builds on mt7620a-similar platforms (MT7621, MT7688)
Signed-off-by: Andrew Yong <me@ndoo.sg>
Enable work-arounds present in the code commented-out but needed to write to
sdcard on mt7621 which currently causes kernel to oops when engaging in
serious writing to sdcard. With this change applied, there are still
occasional warnings thrown by the mmc driver, however, at least it no longer
crashes the system and even large writes (full-card dump/erase/write/compare)
don't show any corruption.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Rebase to LEDE and added "CONFIG_SOC_MT7621" check to ensure non-MT7621 devices do not face performance regressions.
Signed-off-by: Andrew Yong <me@ndoo.sg>
Factory image can be installed via Zyxel WebUI.
Signed-off-by: Vitaly Chekryzhev <13hakta@gmail.com>
[removed linux,modalias parameter from flash node in dts]
[removed sdhci node from dts; no sd card slot here]
Signed-off-by: Mathias Kresin <dev@kresin.me>
The Sitecom firmware upgrade file has SENAO_FIRMWARE_TYPE 2 set. This
looks rather wrong since SENAO_FIRMWARE_TYPE 2 is kernel only but the
file is way to big for only including a kernel.
The factory image need to have the dlf file extension. Otherwise the
Sitecom firmware rejects the file.
The stock firmware uses the following mac addresses:
LAN: 00:0C:F6:AA:BB:D8 (u-boot env: ethaddr)
2,4: 00:0C:F6:AA:BB:D8 (EEPROM)
5: 00:0C:F6:AA:BB:DC (EEPROM)
WAN: 00:0C:F6:AA:C8:43 (u-boot env: wanaddr)
Assuming the mac address range :D8 to :DC is reserved for this device,
the MAC addresses were reorder to have a unique MAC address for each
interface:
2.4GHz: 00:0C:F6:AA:BB:D8
LAN: 00:0C:F6:AA:BB:D9
WAN: 00:0C:F6:AA:BB:DA
5 GHz: 00:0C:F6:AA:BB:DC
The first MAC is assigned to the 2.4GHz WiFi interface
to keep compatibility with the SSIDs printed on the case, which have
the last three sextets of the MAC address appended.
There are still issues with the rt2x00 driver. It is not possible to
use both wireless interfaces at the same time. The 2.4 GHz
wireless (PCIe) only works if the internal 5GHz wireless is/has been
enabled or used for scanning. The internal 5GHz wireless only works if
the 2.4GHz wireless (PCIe) was never enabled. Disabling the 2.4Ghz
after it was enabled will result in stations seeing the 5Ghz AP but are
unable to connect.
Due to the not optimal working wifi the manufacture, backup and storage
partitions of the OEM firmware are kept for now to allow an easy switch
back to the Sitecom firmware.
Signed-off-by: Jasper Scholte <NightNL@outlook.com>
Signed-off-by: Mathias Kresin <dev@kresin.me>
Polling every 40ms causes more than 10% CPU load on weak devices. An
interval of 200ms is much more reasonable.
Signed-off-by: Martin Weinelt <martin@darmstadt.freifunk.net>
[Matthias Schiffer: adapt OpenWrt patch; add ramips; extend commit message]
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
All compiled device tree files not mentioned are binary identical to the
former ones.
Fix the obvious decimal/hex confusion for the power key of ramips/M2M.dts.
Due to the include of the input binding header, the BTN_* node names in:
- ramips/GL-MT300A.dts
- ramips/GL-MT300N.dts
- ramips/GL-MT750.dts
- ramips/Timecloud.dts
will be changed by the compiler to the numerical equivalent.
Move the binding include of lantiq boards to the file where they are
used the first time to hint the user where the values do come from.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Fixes invalid device tree parameters.
Drop the mvsw61xx node used in mvebu device tree source files. It looks
like some kind of ethernet switch cargo cult. Neither the
marvell,88e6352 nor the marvell,88e6172 compatible strings can be found
in any LEDE file or in the kernel sources.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Assign an unused MAC addresses to the 2.4GHz wifi interface as it was
originally planed but not possible.
The MAC address numbering of the TEW-691GR changes to the following
pattern:
LAN: AA:BB:CC:DD:EE:0C
WIFI: AA:BB:CC:DD:EE:0D
WAN: AA:BB:CC:DD:EE:0F
The MAC address numbering of the TEW-692GR changes to the following
pattern:
LAN: AA:BB:CC:DD:EE:e4
WAN: AA:BB:CC:DD:EE:e5
2.4GHz: AA:BB:CC:DD:EE:e7
5 GHz: AA:BB:CC:DD:EE:e8
Set the label and compatible string for the TEW-692GR PCIe wireless
according to the the PCI binding documentation.
Use the wifi@0,0 label and the pci0,0 compatible string since the PCI
vendor and device id is unknown. It should work anyway since the
compatible string isn't evaluated (yet).
Signed-off-by: Mathias Kresin <dev@kresin.me>
Use the ralink,mtd-eeprom instead of invoking the userspace firmware
loader.
Set the label and compatible string according to the the PCI binding
documentation.
Use the wifi@0,0 label and the pci0,0 compatible string in case the
PCI vendor and device id is unknown. It should work anyway since the
compatible string isn't evaluated (yet).
This commit might fixes the PCIe wireless for the Buffalo WHR-600D.
This board was mentioned in the board 10-rt2x00-eeprom firmware hotplug
script but never had the correct eeprom name set to trigger the
firmware from flash extraction.
Use the usual eeprom for the soc wmac of the Dovado Tiny AC.
Signed-off-by: Mathias Kresin <dev@kresin.me>
The MikroTik hEX v3 (RB750Gr3) is a MT7621AT board which is similar to most MT7621 reference designs, it can be easily supported by this patch; however, the stock RouterBOOT bootloader has to be replaced by a MT7621 SDK U-Boot such as https://github.com/ndoo/RB750Gr3-U-Boot - U-Boot configured for the RB750Gr3 (16MiB SPI flash, 256MiB DDR3 RAM at 1200MHz).
RouterBOOT, the stock bootloader, does not initialize the UART and boots silently, making it preferable to replace it with a MT7621 SDK U-Boot with UART (57600 8N1) that supports HTTP, TFTP or serial upload of sysupgrade firmware and U-Boot.
Furthermore, RouterOS, the stock firmware, is contained in a proprietary modification of SquashFS without GPL sources; UART is also disabled in stock firmware.
The combination of LEDE firmware generated by this PR and MT7621 SDK U-Boot expects the printed MAC address to reside at offset `0xe000` of the factory partition (absolute offset is `0x4e000`); this is similar to the factory MAC address offset for several other MT7621 devices.
A 16MiB flash dump suitable for use with flashrom will be provided if/once this patch is accepted and binaries are built by LEDE buildbot. Alternatively, writing the U-Boot to the SPI flash starting at 0x0 offset and booting the board with serial console attached will allow TFTP, HTTP or serial upload of sysupgrade firmware.
Signed-off-by: Andrew Yong <me@ndoo.sg>
This patch bumps the 4.4 kernel from .28 to .30 and refreshes the patches.
Compile-tested on ar71xx, x86/64, ramips/mt7621, brcm47xx and kirkwood.
Run-tested on ar71xx & ramips/mt7621, brcm47xx and kirkwood (last two confirmed
by P. Wassi).
Signed-off-by: Stijn Segers <francesco.borromini@inventati.org>
This patch adds the kmod-usb3 and kmod-usb-ledtrig-usbport packages to the
DIR-860L B1 profile. The DIR-860L B1 has a USB 3 port.
Signed-off-by: Stijn Segers <francesco.borromini@inventati.org>
- setting read-only flag to important partitions
- enabling PA to improve 2.4 GHz signal strength
- add missing leds
- rename colour led
- add mac adress to 5GHz wlan interface
- included <dt-bindings/input/input.h> and <dt-bindings/gpio/gpio.h>
Signed-off-by: Henryk Heisig hyniu@o2.pl
Build the RTC driver into the kernel, (and remove the optional module), in order
to make hctosys working. (Currently the module is loaded after hctosys has failed previously)
Signed-off-by: Rosen Penev <rosenp@gmail.com>
This makes init.d script handle existing UCI entries using the new
trigger. It also switches all targets to use its package.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
All of the touched boards don't have an ethernet port. Allow to use the
wps button on these boards to enable the wireless radio after boot.
The force enabled wireless for the DCH-M225 is removed. It is reckless
to bring up an unencrypted wireless network by default these days.
Using the wps button to bring up the radio seam to me the better
approach.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Images installed via TFTP recovery or the Edimax webinterface of the
3g-6200n(l) are writting with the edimax header to flash.
Use only one image type for these boards. The migration to the
factory only images need to be done via TFTP recovery.
Use the same start address for the 3g-6200n(l) factory images as the
stock firmware images.
Thanks to Jan Dostrasil for reporting all the issues of the 3g-6200nl
and the patient testing of all changes.
Signed-off-by: Mathias Kresin <dev@kresin.me>
Assign the reset functionality to the wps/reset buttons. Use the wlan
switch of the 6200n to enable/disable wlan.
Add the internet led of the 6200nl and use the led for boot status
indication
Signed-off-by: Mathias Kresin <dev@kresin.me>
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>
