Beaglebone AI - Pinmuxing vout-pins for PRU usage - device-tree

I am trying to configure a pinmux on the BBAI to use the UART from the PRU's. I am running Debian buster with 4.14.108-ti-r131 kernel.
This is part of my device tree overlay:
&cape_pins_default {
pinctrl-single,pins = <
DRA7XX_CORE_IOPAD( 0x3614, PIN_OUTPUT | MUX_MODE10 ) // P8.31a PRU1 TX
DRA7XX_CORE_IOPAD( 0x3610, PIN_INPUT | MUX_MODE10 ) // P8.33a PRU1 RX
DRA7XX_CORE_IOPAD( 0x35E4, PIN_INPUT | MUX_MODE10 ) // P8.43 PRU0 UART RX
DRA7XX_CORE_IOPAD( 0x35E8, PIN_OUTPUT | MUX_MODE10 ) // P8.44 PRU0 UART TX
>;
};
In BBBlack you need to disable HDMI or EMMC for some PRU pins, I tried it like so in /boot/uEnv.txt:
disable_uboot_overlay_video=1
disable_uboot_overlay_emmc=1
Is this also valid on the BBAI? The show-pins script after fiddling and rebooting for quite a while now still states MUX_MODE0 and some vout... function (I assume this is some HDMI thing?)
P8.31a 133 C8 0 slow vout1_d14
P8.33a 132 C6 0 slow vout1_d1
P8.43 121 F10 0 slow vout1_d2
P8.44 122 G11 0 slow vout1_d3
Is there anything more I need to setup or that I missed?
Thanks in advance!

I found out, that after reinstalling the BBAI image, that on the clean image, HDMI was disabled.
For making the device-tree overlay I used the am5729-beagleboneai.dts and defined a custom dtb= in /boot/uEnv.txt as a base, which was the problem, because it enabled HDMI.
Extending the default overlay - which is am572x-bone-common-univ.dtsi - or by loading a pru overlay in the uEnv.txt file did the trick for me. There are plenty of examples for pru overlays for the BBAI in the beagleboards repo linked above, so I went with that.
uname_r=4.19.94-ti-r68
#dtb=
enable_uboot_overlays=1
uboot_overlay_pru=src/arm/overlays/BBAI-PR1_UART0.dtb

Related

How to fix the coredump for 'ProfileInfoCommand' of CLIPS?

CLIPS version: 6.31 .
language: c++ clips C API .
I get a coredump file when execute ProfileInfoCommand after EnvRun.
Why is this error happening? Is there any usage error here? Or this is a bug?
The c++ code 1:
#define PROFILING_FUNCTIONS 1
// ...
EnvReset(clips);
// ...
EnvLoadFactsFromString(clips, facts.str().c_str(), -1);
// ...
EnvRun(clips, 100000);
ProfileInfoCommand(clips);
I know if PROFILING_FUNCTIONS is defined as 1, the EnvRun function will start profile automatically.So I use ProfileInfoCommand after EnvRun,but the coredump has occurred!
And I also tried using another method,but the process also generated a core dump(the same backtrace like the c++ code 1).
The c++ code 2:
EnvReset(clips);
Profile(clips, "constructs");
// ...
EnvLoadFactsFromString(clips, facts.str().c_str(), -1);
// ...
EnvRun(clips, max_iters);
Profile(clips, "off");
ProfileInfoCommand(clips);
The coredump file is following:
Core was generated by `/mnt/home/worker/project/ae-arbiter/dist/bin/arbiter-8003 --flagfile=flags.'.
Program terminated with signal 11, Segmentation fault.
#0 0x0000000000bc6b80 in EnvRtnArgCount (theEnv=Cannot access memory at address 0x7f879c3f6af8
) at /mnt/home/worker/project/ae-arbiter/src/clips/argacces.cc:306
306 for (argPtr = EvaluationData(theEnv)->CurrentExpression->argList;
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.212.el6.x86_64
(gdb) bt
#0 0x0000000000bc6b80 in EnvRtnArgCount (theEnv=0x7f85e6454f70) at /mnt/home/worker/project/ae-arbiter/src/clips/argacces.cc:306
#1 0x0000000000bc6bcd in EnvArgCountCheck (theEnv=0x7f85e6454f70, functionName=0xda1188 "profile", countRelation=2, expectedNumber=1) at /mnt/home/worker/project/ae-arbiter/src/clips/argacces.cc:337
#2 0x0000000000c40803 in ProfileInfoCommand (theEnv=0x7f85e6454f70) at /mnt/home/worker/project/ae-arbiter/src/clips/proflfun.cc:245
#3 0x0000000000b62d12 in arbiter::lib::ClipsModuleExecute (clips=0x7f85e6454f70, features=..., max_iters=100000, result_func=..., module_name=..., halt=#0x7f879c3f6fdc)
at /mnt/home/worker/project/ae-arbiter/src/lib/clips-utils.cc:357
...
...
Setting PROFILING_FUNCTIONS to 1 does not automatically profile code when EnvRun is called. It determines whether the profiling functions are included in the CLIPS executable. See Section 2.2 of the Advanced Programming Guide. The functions available for profiling from the CLIPS command are documented in Section 13.15, Profiling Commands, of the Basic Programming Guide. The ProfileInfoCommand can't be called directly. If you want to call a CLIPS command/function that isn't part of the API described in the Advanced Programming Guide, use the EnvEval API:
DATA_OBJECT returnValue;
EnvEval(theEnv,"(profile-info)",&returnValue);

Error on sending AT+CWJAP_DEF commands to ESP8266

I am trying to send AT commands to ESP8266 to get connected with internet with the Wifi.
When I am sending AT and AT+RST command on serial monitor then I am getting OK and ready response which seems perfect.
Then I am sending AT+CWLAP to get list of available wifi networks which is also executing correctly.
AT+CWLAP
+CWLAP:(3,"Moto",-42,"a4:70:d6:7a:fa:6c",1,25,0)
+CWLAP:(4,"PRANJAL",-95,"1c:a5:32:3d:f5:c4",1,-16,0)
+CWLAP:(2,"VIHAN",-94,"c8:3a:35:2f:1d:81",1,-21,0)
+CWLAP:(3,"Tenda",-93,"c8:3a:35:20:a9:b1",9,-4,0)
OK
Then I sent AT+CWMODE? which is also perfect.
AT+CWMODE?
+CWMODE:1
OK
Now I am trying to connect ESP8266 with above listed Wifi with this command, it is sending an ERROR on serial monitor.
AT+CWJAP_DEF="Moto","reset1234"
Error
⸮=IRe"Moto","reset1234"
ERROR
Can anyone suggest me what could be the reason of this issue ?
#include "SoftwareSerial.h"
SoftwareSerial esp8266(2, 3); // RX, TX
void setup()
{
Serial.begin(9600); // serial port used for debugging
esp8266.begin(9600); // your ESP's baud rate might be different
}
void loop()
{
if(esp8266.available()) // check if the ESP is sending a message
{
while(esp8266.available())
{
char c = esp8266.read(); // read the next character.
Serial.write(c); // writes data to the serial monitor
}
}
if(Serial.available())
{
delay(10); // wait to let all the input command in the serial buffer
// read the input command in a string
String cmd = "";
while(Serial.available())
{
cmd += (char)Serial.read();
}
// send to the esp8266
esp8266.println(cmd);
}
}
The current official AT command set seems to be documented on https://github.com/espressif/ESP8266_AT/wiki/AT_Description
http://espressif.com/sites/default/files/documentation/4a-esp8266_at_instruction_set_en.pdf
https://www.itead.cc/wiki/ESP8266_Serial_WIFI_Module#AT_Commands
If the module is to be configured as a client, i.e. to connect to an access point, the following AT commands have to be sent (11500 baud 8N1, CR-LF line termination):
AT+RST
AT+CWMODE=3 (1 is "Station" only (wifi client), 3 is mixed mode "Station and Access-Point", both should work)
AT+CWJAP="Moto","reset1234"
AT+CWJAP_CUR="Moto","reset1234" (temporary) or
AT+CWJAP_DEF="Moto","reset1234" (stored)
For reference, a "success story" (ESP8266 module with USB-UART, Software: HTerm, Access Point with WPA2 (both TKIP / CCMP tested)):
AT<\r><\r><\n><\r><\n>
OK<\r><\n>
AT+RST<\r><\r><\n><\r><\n>
OK<\r><\n>
<\r><\n>
ets Jan 8 2013,rst cause:2, boot mode:(3,6)<\r><\n>
<\r><\n>
load 0x40100000, len 1856, room 16 <\r><\n>
tail 0<\r><\n>
chksum 0x63<\r><\n>
load 0x3ffe8000, len 776, room 8 <\r><\n>
tail 0<\r><\n>
chksum 0x02<\r><\n>
load 0x3ffe8310, len 552, room 8 <\r><\n>
tail 0<\r><\n>
chksum 0x79<\r><\n>
csum 0x79<\r><\n>
<\r><\n>
2nd boot version : 1.5<\r><\n>
SPI Speed : 40MHz<\r><\n>
SPI Mode : DIO<\r><\n>
SPI Flash Size & Map: 32Mbit(512KB+512KB)<\r><\n>
jump to run user1 # 1000<\r><\n>
<\r><\n>
??r?d?l<18>?<31><\0><\f>?l`<3>??s?l?<28>?<19>?<4><4><4>$ <2>??r?$<4>??<27>?<4><4>ll`<3>r$?<18>?"<\0>????"<4>l?cs|<\f>?`?22???<27>BB<18>c??o??<18>NN?<16><2><\0><2>d$??<2>d??<\0>?<4>d??<\0>ll????d??l`<2>?<2>N?<\0>????"<4>d??<28>p<4><4><2><2>???"b<4>$<4>?"prlrl<\r><\n>
Ai-Thinker Technology Co. Ltd.<\r><\n>
<\r><\n>
ready<\r><\n>
WIFI DISCONNECT<\r><\n>
AT+CWMODE?<\r><\r><\n>+CWMODE:3<\r><\n>
<\r><\n>
OK<\r><\n>
AT+CWJAP_CUR="Moto","reset1234"<\r><\r><\n>
WIFI CONNECTED<\r><\n>
WIFI GOT IP<\r><\n>
<\r><\n>
OK<\r><\n>
AT+CIFSR<\r><\r><\n>+CIFSR:APIP,"0.0.0.0"<\r><\n>
+CIFSR:APMAC,"00:00:00:00:00:00"<\r><\n>
+CIFSR:STAIP,"0.0.0.0"<\r><\n>
+CIFSR:STAMAC,"00:00:00:00:00:00"<\r><\n>
<\r><\n>
OK<\r><\n>
AT+GMR<\r><\r><\n>AT version:1.1.0.0(May 11 2016 18:09:56)<\r><\n>
SDK version:1.5.4(baaeaebb)<\r><\n>
Ai-Thinker Technology Co. Ltd.<\r><\n>
Jun 13 2016 11:29:20<\r><\n>
OK<\r><\n>
This also works with mode=1.
Major rewrite.
Questions and ideas to test:
what is your module firmware version?
access point issues (e.g. MAC address restrictions)?
power supply good?
might there be any old configuration or other code running on the module?
what is the byte code of ⸮ in the error message - Is it two bytes 0x2E2E?
are you using the Arduino serial monitor for communication?
in contrast to my comment, maybe the arduino does have an influence (timing?). Try to rule this out by
doing the pass-through character-based instead of line-based, e.g.:
(end of list, no code possible otherwise:)
loop(){
if( esp8266.available() )
Serial.write(esp8266.read());
if( Serial.available() )
esp8266.write(Serial.read());
}
keeping the AVR in reset and connecting the ESP8266 serial lines directly to the USB-UART converter
Alright! I just tried to connect with different wifi and it got connected with it. It was some kinda issue with mobile hotspot.

Allocating memory in Flash for user data (STM32F4 HAL)

I'm trying to use the internal flash of an STM32F405 to store a bunch of user settable bytes that remain after rebooting.
I'm using:
uint8_t userConfig[64] __attribute__((at(0x0800C000)));
to allocate memory for the data I want to store.
When the program starts, I check to see if the first byte is set to 0x42, if not, i set it using:
HAL_FLASH_Unlock();
HAL_FLASH_Program(TYPEPROGRAM_BYTE, &userConfig[0], 0x42);
HAL_FLASH_Lock();
After that I check the value in userConfig[0] and I see 0x42... Great!
When I hit reset, however, and look at the location again, it's not 0x42 anymore...
Any idea where I'm going wrong? I've also tried:
#pragma location = 0x0800C00
volatile const uint8_t userConfig[64]
but I get the same result..
Okay I found an answer on the ST forums thanks to clive1. This example works for an STM32F405xG.
First we need to modify the memory layout in the linker script file (.ld file)
Modify the existing FLASH and add a new line for DATA. Here I've allocated all of section 11.
MEMORY
{
FLASH (RX) : ORIGIN = 0x08000000, LENGTH = 1M-128K
DATA (RWX) : ORIGIN = 0x080E0000, LENGTH = 128k
...
...
}
Manual for editing linker files on the sourceware website
In the same file, we need to add:
.user_data :
{
. = ALIGN(4);
*(.user_data)
. = ALIGN(4);
} > DATA
This creates a section called .user_data that we can address in the program code.
Finally, in your .c file add:
__attribute__((__section__(".user_data"))) const uint8_t userConfig[64]
This specifies that we wish to store the userConfig variable in the .user_data section and const makes sure the address of userConfig is kept static.
Now, to write to this area of flash during runtime, you can use the stm32f4 stdlib or HAL flash driver.
Before you can write to the flash, it has to be erased (all bytes set to 0xFF) The instructions for the HAL library say nothing about doing this for some reason...
HAL_FLASH_Unlock();
__HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGSERR );
FLASH_Erase_Sector(FLASH_SECTOR_11, VOLTAGE_RANGE_3);
HAL_FLASH_Program(TYPEPROGRAM_WORD, &userConfig[index], someData);
HAL_FLASH_Lock();

Qt5.4 QAudioOutput on Raspberry Pi With PulseAudio on the 3.5mm Audio Jack Doesn't work but Qt 5.3 Does

Qt5.3 sees the default Raspberry Pi also_output.0.analog-mono device ( 3.5 mm headphone jack ) and QAudioOutput from 5.3 successfully writes audio to that device and I can hear the audio with my headphones. This all works with default Raspbian, with PulseAudio 2.0 from apt-get, and no extra configuration. PulseAudio is run as session process and not in the System Daemon mode. Qt 5.4 does not see the device with the exact same source code and Raspbian ( except cross-compiled with Qt 5.4.0 and not Qt 5.3.2 ) and also cannot write data to it.
It gives me this error ( Please note that I've manually assigned both sys default:CARD=ALSA and 'default' but they both return the same 'snd_pcm_hw_params' error ):
Output Device name: "sysdefault:CARD=ALSA"
Output Device name: "default"
Default device is "default"
Output device is: "default"
"QAudioOutput: snd_pcm_hw_params: err = -12"
Pactl sees it:
pactl list sinks
Sink #0
State: SUSPENDED
Name: alsa_output.0.analog-mono
Description: bcm2835 ALSA Analog Mono
Driver: module-alsa-card.c
Sample Specification: u8 1ch 8000Hz
I've tried to modify /etc/pulse/default.pa with this at the bottom to force the output device:
load-module module-alsa-sink sink_name=alsa_output.0.analog-mono device=hw:0
set-default-sink alsa_output.0.analog-mono
Here is my setup code that gives the error:
// Coordinator receives Audio data
m_Format.setSampleRate(8000);
m_Format.setChannelCount(1);
m_Format.setSampleSize(8);
m_Format.setCodec("audio/pcm");
m_Format.setByteOrder(QAudioFormat::BigEndian);
m_Format.setSampleType(QAudioFormat::UnSignedInt);
QAudioDeviceInfo infoOut(QAudioDeviceInfo::defaultOutputDevice());
foreach (const QAudioDeviceInfo &deviceInfo, QAudioDeviceInfo::availableDevices(QAudio::AudioOutput)) {
qDebug() << "Output Device name: " << deviceInfo.deviceName();
}
qDebug() << "Default device is" << infoOut.deviceName();
if (!infoOut.isFormatSupported(m_Format))
{
qDebug()<< "Default format not supported - trying to use nearest";
m_Format = infoOut.nearestFormat(m_Format);
}
qDebug() << "Output device is: " << infoOut.deviceName();
m_AudioOutput = new QAudioOutput(infoOut, m_Format, this);
// This data accumulates and dumps data to output
m_DataForOutput.clear();
// Now Start playing
// m_Output gets written to to send data to speakers
m_Output = m_AudioOutput->start();
What in the world is going on? How come the same configuration works with 5.3.2 and not 5.4.1. Assigning the default audio device doesn't work... What can I do here and how can I make it work? Thanks!
The answer was to run in session mode ( not a system-wide PulseAudio daemon ) and edit default.pa to look like this:
## Create the default output device
#load-module module-udev-detect tsched=0
load-module module-alsa-card device_id=0
#load-module module-alsa-card device_id=0 tsched=0 fragments=10 fragment_size=640 tsched_buffer_size=4194384 tsched_buffer_watermark=262144
#load-module module-alsa-card device_id=0 tsched=0 fragments=6 fragment_size=16 tsched_buffer_size=4194384 tsched_buffer_watermark=262144
load-module module-suspend-on-idle timeout=86400
### Load several protocols
load-module module-native-protocol-unix
### Make sure we always have a sink around, even if it is a null sink.
#load-module module-always-sink

ttyO ports do not have the good port address on QEMU 1.4.0 running image for beagleboard-xm

I'm running an Linux Image (kernel 3.2.8) for beagleboard-xm on QEMU's 1.4.0 emulator Ubuntu distribution for 13.04. My image is created using Buildroot beagle_defconfig. I added some pkgs to be able to debug a little.
QEMU call cmd:
`$ sudo qemu-system-arm -M beaglexm -m 1024 -sd ./test.img -clock unix -serial stdio -device usb-mouse -device usb-kbd -serial pty -serial pty`
[sudo] password for emperador:
char device redirected to /dev/pts/3 (label serial1)
char device redirected to /dev/pts/4 (label serial2)
What I want to do is to have a communication between guest and host across serial the 4 differents ttyO present on the guest. QEMU offer facilities to redirect the trafic to some device in the host side. My problem goes like this:
At the guest kernel boot Im able to see that my UART where enabled
[ 2.682040] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 2.777947] omap_uart.0: ttyO0 at MMIO 0x4806a000 (irq = 72) is a OMAP UART0
[ 2.794967] omap_uart.1: ttyO1 at MMIO 0x4806c000 (irq = 73) is a OMAP UART1
[ 2.814942] omap_uart.2: ttyO2 at MMIO 0x49020000 (irq = 74) is a OMAP UART2
[ 2.966825] console [ttyO2] enabled
[ 2.984777] omap_uart.3: ttyO3 at MMIO 0x49042000 (irq = 80) is a OMAP UART3
In fact when I go see in to /proc/tty/driver and I do a cat on OMAP-SERIAL Im able to see this
serinfo:1.0 driver revision:
0: uart:OMAP UART0 mmio:0x4806A000 irq:72 tx:0 rx:0 CTS|DSR|CD
1: uart:OMAP UART1 mmio:0x4806C000 irq:73 tx:0 rx:0 CTS|DSR|CD
2: uart:OMAP UART2 mmio:0x49020000 irq:74 tx:268 rx:37 RTS|CTS|DTR|DSR|CD
3: uart:OMAP UART3 mmio:0x49042000 irq:80 tx:0 rx:0 CTS|DSR|CD
I know that ttyO2 is working because my console is been redirected to it. The thing is that doing a set serial on any of the ttyO I get the following message:
[root#enu driver]# setserial -a /dev/ttyO0
/dev/ttyO0, Line 0, UART: undefined, Port: 0x0000, IRQ: 72
Baud_base: 3000000, close_delay: 50, divisor: 0
closing_wait: 3000
Flags: spd_normal
The same goes with ttyO2.
I tried to set some settings to any of the ttyO with setserial but I always get the same message:
[root#enu ~]# setserial /dev/ttyO0 uart 8250
setserial: can't set serial info: Invalid argument
[root#enu ~]# setserial /dev/ttyO0 port 0x4806a000
setserial: can't set serial info: Invalid argument
While looking at guest /proc/tty/drives this is what we see
/dev/tty /dev/tty 5 0 system:/dev/tty
/dev/console /dev/console 5 1 system:console
/dev/ptmx /dev/ptmx 5 2 system
/dev/vc/0 /dev/vc/0 4 0 system:vtmaster
sdio_uart /dev/ttySDIO 249 0-7 serial
acm /dev/ttyACM 166 0-31 serial
ttyprintk /dev/ttyprintk 5 3 console
OMAP-SERIAL /dev/ttyO 253 0-3 serial
serial /dev/ttyS 4 64-95 serial
pty_slave /dev/pts 136 0-1048575 pty:slave
pty_master /dev/ptm 128 0-1048575 pty:master
unknown /dev/tty 4 1-63 console
Basically I want to establish a serial communication between a guest and a host, but the serial ports on the guest side aren't well configured.
/sys/class/tty show that tty drivers had been linked to a serial device.
has I showed up before, only omap uarts have been initialized and attached to ttyO*. notice that the console is been redirected ttyO2 by kernel configs. but because I added -serial stdio, console is been redirected to the terminal that invoked QEMU.
If I redirect the console using at first -serial pty instead of -serial stdio , I'm able to prompt the console in minicom by opening the pty created on the host side. Still nothing happen on the others pty created on the host side to communicate across other ports.
On host side I open /dev/pts/3 and /dev/pts/4 with minicom or by doing cat on them
On guest side:
Whent I do echo "test" > /dev/ttyO0 or 1 or 3 nothing. but when I do it on ttyO2, "test" prompt on the console terminal (which is normal).
now when using any of the ttyS:
echo "test" > /dev/ttyS0
I get
-bash: echo: write error: Input/output error
I made some research about this error and what I found is that is could be many things. But one thing that I noticed was that no device beside serial has been assigned to ttyS. and looking at /proc/tty/driver/serial we see this :
serinfo:1.0 driver revision:
0: uart:unknown port:00000000 irq:0
1: uart:unknown port:00000000 irq:0
2: uart:unknown port:00000000 irq:0
3: uart:unknown port:00000000 irq:0
also setserial -a /dev/ttyS0 confrim this:
/dev/ttyS0, Line 0, UART: unknown, Port: 0x0000, IRQ: 0
Baud_base: 0, close_delay: 50, divisor: 0
closing_wait: 3000
Flags: spd_normal
I managed to do serial communication with muliples ports usig grml image on a x86 architecture. So its seems my host side is fine.
If anyone have ever made something like this work before on QEMU -M beaglexm or any other ARM architecture, I would gladly take any details on the VM used, QEMU's version and distribution as well as the kernel details and image configs used.
I found what my problem was, QEMU ins't mapping the serial chardev of any extra -serial pty.
After doing the this Invoke command:
sudo qemu-system-arm -M beaglexm -m 1024 -sd ./test.img -clonix -serial stdio -device usb-mouse -device usb-kbd -serial pty -serial pty -monitor pty
char device redirected to /dev/pts/5 (label compat_monitor0)
char device redirected to /dev/pts/7 (label serial1)
char device redirected to /dev/pts/10 (label serial2)
We can see that 2 extra serials where created with the label serial 1 and 2.
But if I look at the tree info
(qemu) info qtree
dev: omap_uart, id "uart4"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = uart4
irq 3
mmio 0000000049042000/0000000000001000
dev: omap_uart, id "uart3"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = serial0
irq 3
mmio 0000000049020000/0000000000001000
dev: omap_uart, id "uart2"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = uart2
irq 3
mmio 000000004806c000/0000000000001000
dev: omap_uart, id "uart1"
revision = 82
mmio_size = 4096
baudrate = 812500
chardev = uart1
irq 3
mmio 000000004806a000/0000000000001000
We clearly see that just the label serial0 was attached to a uart (the one setted to be the console). The other labels (serial1 and serial2) are no where to be found.
With the working image of grml that jofel was realy nice to tell me we see this:
dev: i440FX-pcihost, id ""
irq 0
bus: pci.0
type PCI
dev: PIIX3, id ""
addr = 01.0
romfile = <null>
rombar = 1
multifunction = on
command_serr_enable = on
class ISA bridge, addr 00:01.0, pci id 8086:7000 (sub 1af4:1100)
bus: isa.0
type ISA
dev: isa-serial, id ""
index = 2
iobase = 0x3e8
irq = 4
chardev = serial2
wakeup = 0
isa irq 4
dev: isa-serial, id ""
index = 1
iobase = 0x2f8
irq = 3
chardev = serial1
wakeup = 0
isa irq 3
dev: isa-serial, id ""
index = 0
iobase = 0x3f8
irq = 4
chardev = serial0
wakeup = 0
isa irq 4
all 3 serial lebels were attached to a chardev.
Now I just have to ask a new question about how making QEMU to link those lables to my beagleboard uarts.
Also I would like to add I think that setserial did not outputed any info about ttyO's because it doesn't support omap uarts. setserial ? shows what devices are supported. In the case of the ttyS's, I think its because the tty drivers are installed but there is no other type of uarts bisede omap uarts emulated for bealgeboard in QEMU.
Thanks alot for everyone that took a look on this question and specialy jofel.

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