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Old 10-19-2007, 07:09 AM   #1
jtag
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JTAG & console UART Pinout

Hi,

Is anyone still interested in the pinout of JTAG on the Iliad? I mapped them out, but still have to verify they work. Just want to see if there is demand. The connector is the one that is not connected at the edge of the board. Actually it is a dual connector that is present on both sides of the board, both with the JTAG pins (also for the Xilinx).
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Last edited by jtag; 10-23-2007 at 05:44 PM.
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Old 10-19-2007, 07:38 AM   #2
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Pardon the stupid question, (I'm not a hardware guy) but would the jtag port give console output from the kernel as it boots? If so, I think we all would be *very* interested as it would be helpful for a kernel 2.6 port.
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Old 10-19-2007, 08:26 AM   #3
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I understand that iRex was somewhat resistant to allowing JTAG access earlier, so I guess this will be an "unsupported" project?
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Old 10-19-2007, 10:05 AM   #4
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Wow, if that could be used for boot-time output, I think it would be VERY interesting... might be enough to get me into kernel-hacking...
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Old 10-19-2007, 04:13 PM   #5
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console uart too

Ah ok, I didn't realize the console uart was worth something too. Actually I just found it is also connected to the flat cable connector on the top. I don't have a level converter handy at the moment. Will post details when I confirmed them.
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Old 10-23-2007, 05:02 PM   #6
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pinouts and console output

Attached are two images of the relevant pinouts for JTAG and the console UART. The console UART pins are only available on the front and is configured at 115200 baud.

Console output:

iRex Technologies Sexy Program Loader for ER0100 series e-reader
(c) 2005, 2006 by iRex Technologies BV
TFFS Volume info unit size: 65536kByte
Reading SysSet info...Done
Hardware: 0003
VCOM: 2F4C
Source drivers: 0012
Initialising DELTA...Done
Uploading splash screen...Done
Initialising keys...Done
Loading kernel image...Done
Loading initrd...Done
Jumping to kernel...

Uncompressing Linux............................................ done, booting the kernel.
Linux version 2.4.19-rmk7-pxa2-irex1 (buildmgr@buildserver) () #21100 Mon Sep 24 12:21:09 CEST 2007
CPU: XScale-PXA255 revision 6
Machine: iRex Technologies ER0100 eReader
Ignoring unrecognised tag 0x00000000
Memory clock: 99.53MHz (*27)
Run Mode clock: 398.13MHz (*4)
Turbo Mode clock: 398.13MHz (*1.0, active)
On node 0 totalpages: 16384
zone(0): 16384 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/ram rw initrd=0xA1000000,4M rootfstype=ext2 init=/linuxrc rw console=ttyS2,115200 mem=64M
Console: colour dummy device 80x30
Calibrating delay loop... 397.31 BogoMIPS
Memory: 64MB = 64MB total
Memory: 59212KB available (1132K code, 275K data, 72K init)
Dentry cache hash table entries: 8192 (order: 4, 65536 bytes)
Inode cache hash table entries: 4096 (order: 3, 32768 bytes)
Mount-cache hash table entries: 1024 (order: 1, 8192 bytes)
Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes)
Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
POSIX conformance testing by UNIFIX
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Using PXA255 frequency points.
Registering CPU frequency change support.
CPU clock: 398.131 MHz (33.000-400.000 MHz)
Starting kswapd
I2C: PXA algorithm module loaded.
enable_irq(11) unbalanced from c0085a84
I2C: Adding PXA-I2C-Adapter.
I2C: Scanning bus (51)
I2C: Successfully added bus
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with no serial options enabled
ttyS00 at 0x0000 (irq = 15) is a PXA UART
ttyS01 at 0x0000 (irq = 14) is a PXA UART
ttyS02 at 0x0000 (irq = 13) is a PXA UART
SA1100 Real Time Clock driver v1.00
PCF8563: RTC Initialization Successfull
RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
ac97_codec: AC97 Audio codec, id: 0x5053:0x4304 (Philips UCB1400)
UCB1x00: probed IRQ55 correctly. Please remove machine dependencies from ucb1x00-core.c
Turning on amplifier
enable_irq(55) unbalanced from c00a5888
Linux Kernel Card Services 3.1.22
options: [pm]
Intel PXA250/210 PCMCIA (CS release 3.1.22)
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 4096 bind 4096)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NetWinder Floating Point Emulator V0.95 (c) 1998-1999 Rebel.com
irex_er0100_pcmcia_configure_socket: Resetting WLAN
RAMDISK: Compressed image found at block 0
Freeing initrd memory: 4096K
VFS: Mounted root (ext2 filesystem).
Freeing init memory: 72K
----------------------------------------
Starting initrd
----------------------------------------
Starting tffs filesystem
Using /lib/modules/tffs.o
Warning: loading tffs will taint the kernel: non-GPL license - Proprietary
See http://www.tux.org/lkml/#export-tainted for information about tainted modules
tffs: TrueFFS driver 7100.76
tffs: will not use IRQ<7>tffs: TffsMapMem: request_mem_region(0,20000) OK
tffs: G3/P3 found<6>tffs: Socket 0 in addr 0x0
tffs: Device 0x0: size 0xe620000 HW sector 0x200 (recommended 0x1000)
tffs: mDOC H3 not found; multi-sector polled I/O disabled<6>tffs: use major device number 100
Partition check:
tffsa: tffsa1 tffsa3 < tffsa5 tffsa6 tffsa7 >
tffs: disk partition: dev_number=0x6401, 149084 sectors, start_sector=52
tffs: disk partition: dev_number=0x6403, 2 sectors, start_sector=149136
tffs: disk partition: dev_number=0x6405, 57980 sectors, start_sector=149188
tffs: disk partition: dev_number=0x6406, 262652 sectors, start_sector=207220
tffs: disk partition: dev_number=0x6407, 1196 sectors, start_sector=469924

Loading sysset and keystore modules
Using /lib/modules/sysset.o
Warning: loading sysset will taint the kernel: non-GPL license -iRex sysset module loaded.
PROPRIETARY (c) 2006 iRex Technologies BV
See http://www.tux.org/lkml/#export-tainted for information about tainted modules
Using /lib/modules/keystore.o
Warning: loading keystore will taint the kernel: non-GPL license - PROPRIETARY (c) 2006 iRex Technologies BV
See http://www.tux.org/lkml/#export-tainted for information about tainted modules
iRex keystore module loaded.

Starting delta ASIC with hwrev=3
Using /lib/modules/delta.o
Warning: loading delta will taint the kernel: non-GPL license - PROPRIETARY (c) 2006 iRex Technoeinkfb: Hardware version 3
logies BV
See http://www.tux.org/lkml/#export-tainted for inffbcon_setup: No support for fontwidth 8
ormation about tainted modules
fbcon_setup: type 0 (aux 0, depth 8) not supported
Console: switching to colour frame buffer device 96x64

Starting button device
Using /lib/modules/button.o
Warning: loading button will taint the kernel: non-GPL license -iRex ER0100 eReader Button Driver initialised
PROPRIETARY (c) 2006 iRex Technologies BV
See http://www.tuxKernel: Init WACOM On
.org/lkml/#export-tainted for information about tainted modules

Starting battery device
Using /lib/modules/battery.o
Warning: loading battery will taint the kernel: non-GPL license iRex ER0100 eReader Battery Gas Gauge Driver initialised
- PROPRIETARY (c) 2006 iRex Technologies BV
See http://www.tux.org/lkml/#export-tainted for information about tainted modules

Check for downloaded firmware updates [os=0,fs=0]
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
os flag not set, no os.gz; nothing to do
fs flag not set, no fs.gz; nothing to do
No updates, booting app fs...
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
INIT: version 2.86 booting
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
MSDOS FS: IO charset utf8
EXT2-fs warning: mounting unchecked fs, running e2fsck is recommended
Setting up IP spoofing protection: rp_filter.
Configuring network interfaces... done.
INIT: Entering runlevel: 5
Starting PCMCIA services: cardmgr[250]: watching 2 sockets
done.
cardmgr[251]: socket 1: Marvell
Starting MMC services
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/ide/ide-mod.o
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 50MHz system bus speed for PIO modes; override with idebus=xx
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/ide/ide-disk.o
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/ide/ide-probe-mod.o
(W)displayMgr.c:250,main() ePaper daemon (displayMgr 0.211)
(W)displayMgr.c:255,main() Display Manager is accessible to local processes only.
(W)erdmServer.c:62,initServer() Bound successfully to 127.0.0.1:50555.
cardmgr[251]: executing: 'modprobe cf8385 2>&1'
cardmgr[251]: + Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/pcmcia/cfio.o
Before calling register_pccard_driver
After calling register_pccard_driver
cardmgr[251]: + Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/pcmcia/cf8385.o
(W)eripc.c:37,erIpcInitServer() Version: 256

(W)eripc.c:76,erIpcInitServer() Bound successfully to 127.0.0.1:50071.
Kernel: WACOM Off Delay start
Entering cf_attach()
Before registering the client
irex_er0100_pcmcia_configure_socket: Resetting WLAN
BasePort1=0xf7000000, AssignedIRQ=68
Waiting for mb-applet-icon-container ...
After calling wlan_add_card function
Leaving cf_attach()
fbcon_setup: No support for fontwidth 8
fbcon_setup: type 0 (aux 0, depth 8) not supported
.cardmgr[251]: executing: './network start wlan0 2>&1'
cardmgr[251]: + Default Config
cardmgr[251]: + wlan0 deepsleep:setting to on
cardmgr[251]: + Sample private network setup
.Could not init font path element /usr/lib/X11/fonts/misc, removing from list!
Could not init font path element /usr/lib/X11/fonts/100dpi, removing from list!
Could not init font path element /usr/lib/X11/fonts/75dpi, removing from list!
...(W)eripc.c:37,erIpcInitServer() Version: 256

(W)eripc.c:76,erIpcInitServer() Bound successfully to 127.0.0.1:50073.
..... wait done
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/usb/hal.o
hal_pxa250.c: 1362-hal Initialization Success
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/usb/phci.o
td_cache = c022f9f0
ed_cache = c022fa60
usb.c: new USB bus registered, assigned bus number 1
(W)eripc.c:37,erIpcInitServer() Version: 256

hub.c: USB hub found
hub.c: 1 port detected
(W)eripc.c:76,erIpcInitServer() Bound successfully to 127.0.0.1:50072.
USB HAL: HC suspend
usb_phci.c: usb-phci Initialization Success
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/scsi/scsi_mod.o
SCSI subsystem driver Revision: 1.00
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/usb/storage/usb-storage.o
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
USB Mass Storage support registered.
(CL_W)main.c:217,main() gtk_rc_get_default_files [/etc/gtk-2.0/gtkrc]
(CL_W)main.c:217,main() gtk_rc_get_default_files [/home/root/.gtkrc-2.0]
$** can't synthesize pci hotplug events
AC97: Turning off sound
(W)mb-applet-icon-container.c:1184,loadIcons() Can't find pRegIcon[56]
(W)mb-applet-icon-container.c:1184,loadIcons() Can't find pRegIcon[57]
(W)eripc.c:37,erIpcInitServer() Version: 256

(W)eripc.c:76,erIpcInitServer() Bound successfully to 127.0.0.1:50065.
(CL_E)erConnect.c:68,erConnectInit() Lock the connect mutex
(CL_E)metadataStoreManager.c:936,recreateArchives( ) Can not create directory /mnt/free/newspapers!
(CL_E)metadataStoreManager.c:947,recreateArchives( ) Can not create directory /mnt/free/books!
(CL_E)metadataStoreManager.c:958,recreateArchives( ) Can not create directory /mnt/free/documents!
(CL_E)metadataStoreManager.c:969,recreateArchives( ) Can not create directory /mnt/free/notes!
(W)eripc.c:37,erIpcInitServer() Version: 256

(W)eripc.c:76,erIpcInitServer() Bound successfully to 127.0.0.1:50070.
(CL_W)programManager.c:1019,pm_InitProgramTable() Application [APABIMOBI] executable [/usr/bin/xebreader] is not found: disabled it
(CL_W)programManager.c:1019,pm_InitProgramTable() Application [EBA] executable [/usr/bin/eba] is not found: disabled it
(CL_W)programManager.c:1019,pm_InitProgramTable() Application [ARINC] executable [/usr/bin/ereader_mapviewer] is not found: disabled it
$** can't synthesize root hub events
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/usb/pdc.o
USB HAL: DC suspend
usb_pdc.c: usb-pdc Initialization Success
Using /lib/modules/2.4.19-rmk7-pxa2-irex1/kernel/drivers/usb/mscd.o
pdc_bus.c: Registered Driver devmscd
devmscd.c: devmscd Initialization Success

OpenEmbedded Linux ereader ttyS2

ereader login:

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Old 10-23-2007, 06:07 PM   #7
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Thanks for the output, that's very interesting!

I hope this info will be helpful to Kernel hackers trying to port a 2.6 kernel.
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Old 10-24-2007, 01:38 AM   #8
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Wow, this is awesome jtag! Nice detective work. I'm guessing those serial lines come out somewhere else too that is a bit easier to connect to perhaps.

Looks like finding the bug in usb.c for various usb sticks should be pretty straightforward if they just use a vanilla version.

--chuck
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Old 10-26-2007, 02:55 PM   #9
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Wow, this is really fantastic work. This question may be obvious, but do these pinouts come out the physical connecter plug at the base of the iLiad? That is, if I could get another plug like that, could I get this console output if I attach wire leads to the right pins?

This is excellent work that will definitely help with kernel hacking. Wonderful. I can't compliment you enough.
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Old 10-31-2007, 08:32 PM   #10
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What I am astonished is that you are telling this as if it were trivial, while some months ago we speculated and nobody concluded anything about. Can I bet you have a deep training on embedded systems?
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Old 01-13-2010, 02:19 AM   #11
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can u help me in huwai 2906
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Old 06-26-2011, 09:55 PM   #12
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Yeah awesome man! Thanks for the great info...I will be doing some kernel hacking
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