Ok, not porting, but more like adding support for the board, ’cause the chip is already quite known.
I got this thing from my favourite place to waste money – DX. It has RTL3050F inside, 32MB RAM, 4MB FLASH, and runs at 320Mhz. A good bonus is a usb host and a usual uart, well hidden in a small case.
Obligatory photo follows:
Ok, so what next? As usual, the first thing I do, once I get a router… Turn on the soldering iron, take it apart and solder the 2,54 header to connect to the uart. Hehe.
UART is here, the usual 4 pins. GND, RX, TX and Vcc. Logic levels are 3,3 volts (As if I expected anything else), so I just soldered the pins and hooked the bus pirate.
The board is shipped with u-boot, has no jtag whatsoever (careful not to brick – or else you’ll have some bad time desoldering the flash chip, programming it and soldering back!).
Next I got the latest OpenWRT trunk… To just find that this thing doesn’t boot with any of the images generated.
the MOFI3500-3GN image kind of worked, but complained about incorrect mtd patitioning schema.
Time to get some coffee and start hacking OpenWRT to get things right.
As the result, I:
- Created a new mach-type called ‘mach-unbranded-3gn’
- Altered the scripts to correctly pack the firmware for this new supported router.
- Figured out the correct GPIOS for LEDs, so that all 5+1 leds that can be controlled are avaliable from /sys/class/leds
- Figured out the GPIOS for both buttons at the back to work
- Altered some scripts to correctly extract firmware for wireless chip
- Sent the patches to openwrt-devel.
Synopsys didn’t use ohci/ehci, but just invented their own shit(tm) whith blackjack and hoo… err… hmmm… other stuff. As the result the code resides in drivers/usb/dwc_otg and looks quite alien.
Layne Edwards from OpenWRT-devel has already provided some patches, but:
- I haven’t yet tried them yet
- They aren’t yet in the OpenWRT trunk
U-Boot 1.1.3 (Apr 7 2010 - 09:43:57)
Board: Ralink APSoC DRAM: 32 MB
relocate_code Pointer at: 81fac000
======= config usb otg =====
flash_protect ON: from 0xBF000000 to 0xBF0205C3
protect on 0
protect on 1
protect on 2
protect on 3
protect on 4
protect on 5
protect on 6
protect on 7
protect on 8
protect on 9
flash_protect ON: from 0xBF030000 to 0xBF03FFFF
protect on 10
============================================
Ralink UBoot Version: 3.2
--------------------------------------------
ASIC 3052_MP2 (Port5<->None)
DRAM COMPONENT: 256Mbits
DRAM BUS: 16BIT
Total memory: 32 MBytes
Date:Apr 7 2010 Time:09:43:57
============================================
icache: sets:128, ways:4, linesz:32 ,total:16384
dcache: sets:128, ways:4, linesz:32 ,total:16384
##### The CPU freq = 320 MHZ ####
SDRAM bus set to 16 bit
SDRAM size =32 Mbytes
Please choose the operation:
1: Load system code to SDRAM via TFTP.
2: Load system code then write to Flash via TFTP.
3: Boot system code via Flash (default).
4: Entr boot command line interface.
9: Load Boot Loader code then write to Flash via TFTP.
0
3: System Boot system code via Flash.
## Booting image at bf050000 ...
Image Name: MIPS OpenWrt Linux-2.6.39.2
Created: 2011-08-04 17:34:58 UTC
System Control Status = 0x00400000
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 804635 Bytes = 785.8 kB
Load Address: 80000000
Entry Point: 80000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
No initrd
## Transferring control to Linux (at address 80000000) ...
## Giving linux memsize in MB, 32
Starting kernel ...
Linux version 2.6.39.2 (necromant@ilwyn) (gcc version 4.5.4 20110526 (prerelease) (Linaro GCC 4.5-2011.06-0) ) #18 Thu Aug 4 21:34:21 MSD 2011
bootconsole [early0] enabled
CPU revision is: 0001964c (MIPS 24Kc)
Ralink RT3350 id:1 rev:2 running at 320.00 MHz
Determined physical RAM map:
memory: 02000000 @ 00000000 (usable)
Initrd not found or empty - disabling initrd
Zone PFN ranges:
Normal 0x00000000 -> 0x00002000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0x00000000 -> 0x00002000
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 8128
Kernel command line: board=NONAME-3GN mtdparts=physmap-flash.0:192k(u-boot)ro,64k(devdata)ro,64k(devconf)ro,832k(kernel),2944k(rootfs),3776k@0x50000(firmware) console=ttyS1,57600 rootfstype=squashfs,jffs2
PID hash table entries: 128 (order: -3, 512 bytes)
Dentry cache hash table entries: 4096 (order: 2, 16384 bytes)
Inode-cache hash table entries: 2048 (order: 1, 8192 bytes)
Primary instruction cache 16kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 16kB, 4-way, VIPT, no aliases, linesize 32 bytes
Writing ErrCtl register=0007a000
Readback ErrCtl register=0007a000
Memory: 30032k/32768k available (1849k kernel code, 2736k reserved, 312k data, 148k init, 0k highmem)
SLUB: Genslabs=9, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
NR_IRQS:48
console [ttyS1] enabled, bootconsole disabled
console [ttyS1] enabled, bootconsole disabled
Calibrating delay loop... 212.58 BogoMIPS (lpj=1062912)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
NET: Registered protocol family 16
MIPS: machine is Unbranded 3G router from DX
bio: create slab at 0
Switching to clocksource MIPS
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 1024 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
TCP reno registered
UDP hash table entries: 256 (order: 0, 4096 bytes)
UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
NET: Registered protocol family 1
squashfs: version 4.0 (2009/01/31) Phillip Lougher
JFFS2 version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
msgmni has been set to 58
io scheduler noop registered
io scheduler deadline registered (default)
Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled
serial8250: ttyS0 at MMIO 0x10000500 (irq = 13) is a 16550A
serial8250: ttyS1 at MMIO 0x10000c00 (irq = 20) is a 16550A
physmap platform flash device: 00800000 at bf000000
physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID 0x0000c2 Chip ID 0x0022a8
Amd/Fujitsu Extended Query Table at 0x0040
Amd/Fujitsu Extended Query version 1.1.
Silicon revision: 0
Address sensitive unlock: Required
Erase Suspend: Read/write
Block protection: 4 sectors per group
Temporary block unprotect: Supported
Block protect/unprotect scheme: 4
Number of simultaneous operations: 0
Burst mode: Not supported
Page mode: Not supported
Vpp Supply Minimum Program/Erase Voltage: 9.5 V
Vpp Supply Maximum Program/Erase Voltage: 10.5 V
Top/Bottom Boot Block: Bottom boot
number of CFI chips: 1
cmdlinepart partition parsing not available
RedBoot partition parsing not available
Using physmap partition information
Creating 6 MTD partitions on "physmap-flash.0":
0x000000000000-0x000000030000 : "u-boot"
0x000000030000-0x000000040000 : "config"
0x000000040000-0x000000050000 : "factory"
0x000000050000-0x000000120000 : "kernel"
0x000000120000-0x000000800000 : "rootfs"
mtd: partition "rootfs" extends beyond the end of device "physmap-flash.0" -- size truncated to 0x2e0000
mtd: partition "rootfs" set to be root filesystem
mtd: partition "rootfs_data" created automatically, ofs=260000, len=1A0000
0x000000260000-0x000000400000 : "rootfs_data"
0x000000050000-0x000000800000 : "firmware"
mtd: partition "firmware" extends beyond the end of device "physmap-flash.0" -- size truncated to 0x3b0000
TCP westwood registered
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear
All bugs added by David S. Miller
lib80211: common routines for IEEE802.11 drivers
VFS: Mounted root (squashfs filesystem) readonly on device 31:4.
Freeing unused kernel memory: 148k freed
- preinit -
Press the [f] key and hit [enter] to enter failsafe mode
- regular preinit -
JFFS2 notice: (290) jffs2_build_xattr_subsystem: complete building xattr subsystem, 1 of xdatum (1 unchecked, 0 orphan) and 4 of xref (0 dead, 2 orphan) found.
switching to jffs2
- init -
Please press Enter to activate this console. Compat-wireless backport release: compat-wireless-2011-06-23
Backport based on wireless-testing.git master-2011-06-22
cfg80211: Calling CRDA to update world regulatory domain
device eth0.1 entered promiscuous mode
device eth0 entered promiscuous mode
br-lan: port 1(eth0.1) entering forwarding state
br-lan: port 1(eth0.1) entering forwarding state
PPP generic driver version 2.4.2
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 24
nf_conntrack version 0.5.0 (471 buckets, 1884 max)
cfg80211: World regulatory domain updated:
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
BusyBox v1.18.5 (2011-08-02 21:37:04 MSD) built-in shell (ash)
Enter 'help' for a list of built-in commands.
_______ ________ __
| |.-----.-----.-----.| | | |.----.| |_
| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
ATTITUDE ADJUSTMENT (bleeding edge, r27878) ----------
* 1/4 oz Vodka Pour all ingredients into mixing
* 1/4 oz Gin tin with ice, strain into glass.
* 1/4 oz Amaretto
* 1/4 oz Triple sec
* 1/4 oz Peach schnapps
* 1/4 oz Sour mix
* 1 splash Cranberry juice
-----------------------------------------------------
root@OpenWrt:/#
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