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trouble bringing up can0 interface on intel eg20t chipset

DISCUSSION Luc Richer 2 participants 4 messages Feb 10, 2014 CAN network drivers

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Luc Richer

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#0 lore raw

I am trying to interface with vehicle engine using Intel EG20T chipset.

This board does have a pinout for CANbus interface, and I believe I have determined the correct module for the interface is pch_can
http://cateee.net/lkddb/web-lkddb/PCH_CAN.html
Someone told me I may need the i2c module for this chipset as well, so I have loaded it also (i2c_eg20t)

I have loaded the modules for the can interface (can, can-dev, can-raw, can-bcm) along with i2c_eg20t and pch_can.

dmesg | grep can reveals
can: controller area network core (rev 20120528 abi 9)
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)

but nothing is listed regarding pch_can and the interface can0 is never listed.

dmesg | grep can0 gives no result and cat /proc/net/dev lists p2p1 and lo but no can.

can-utils have been built and installed and appear to be working correctly (although I cannot test without a can interface really)

What am I missing?

maintainer
#1 lore raw
Quoted 8 lines · Luc Richer

I am trying to interface with vehicle engine using Intel EG20T chipset.

This board does have a pinout for CANbus interface, and I believe I have determined the correct module for the interface is pch_can
http://cateee.net/lkddb/web-lkddb/PCH_CAN.html
Someone told me I may need the i2c module for this chipset as well, so I have loaded it also (i2c_eg20t)

Quoted 7 lines

I have loaded the modules for the can interface (can, can-dev, can-raw, can-bcm) along with i2c_eg20t and pch_can.

dmesg | grep can reveals
can: controller area network core (rev 20120528 abi 9)
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)

Please send the output of:

lspci
ifconfig -a

Marc

Signature · 4 lines
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |
author
#2 lore raw
Quoted 16 lines · Marc Kleine-Budde
Quoted 8 lines · Luc Richer

I am trying to interface with vehicle engine using Intel EG20T chipset.

This board does have a pinout for CANbus interface, and I believe I have determined the correct module for the interface is pch_can
http://cateee.net/lkddb/web-lkddb/PCH_CAN.html
Someone told me I may need the i2c module for this chipset as well, so I have loaded it also (i2c_eg20t)

Quoted 7 lines

I have loaded the modules for the can interface (can, can-dev, can-raw, can-bcm) along with i2c_eg20t and pch_can.

dmesg | grep can reveals
can: controller area network core (rev 20120528 abi 9)
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)

Quoted 7 lines

Please send the output of:

lspci
ifconfig -a

Marc

I have made some advancement and now have the interface detected but can't seem to bring it up.

$ lspci
00:00.0 Host bridge: Intel Corporation Atom Processor E6xx PCI Host Bridge #1 (rev 05)
00:01.0 Host bridge: Intel Corporation Atom Processor E6xx Configuration Unit (rev 02)
00:02.0 VGA compatible controller: Intel Corporation Atom Processor E6xx Integrated Graphics Controller (rev 05)
00:03.0 Multimedia video controller: Intel Corporation Atom Processor E6xx Integrated Graphics Controller (rev 02)
00:17.0 PCI bridge: Intel Corporation Atom Processor E6xx PCI Express Port 1 (rev 02)
00:18.0 PCI bridge: Intel Corporation Atom Processor E6xx PCI Express Port 2 (rev 02)
00:19.0 PCI bridge: Intel Corporation Atom Processor E6xx PCI Express Port 3 (rev 02)
00:1a.0 PCI bridge: Intel Corporation Atom Processor E6xx PCI Express Port 4 (rev 02)
00:1b.0 Audio device: Intel Corporation System Controller Hub (SCH Poulsbo) HD Audio Controller (rev 02)
00:1f.0 ISA bridge: Intel Corporation Atom Processor E6xx LPC Bridge (rev 02)
01:00.0 PCI bridge: Intel Corporation Platform Controller Hub EG20T PCI Express Port (rev 01)
02:00.0 Unassigned class [ff00]: Intel Corporation Platform Controller Hub EG20T Packet Hub (rev 01)
02:00.1 Ethernet controller: Intel Corporation Platform Controller Hub EG20T Gigabit Ethernet Controller (rev 02)
02:00.2 Unassigned class [ff00]: Intel Corporation Platform Controller Hub EG20T General Purpose IO Controller (rev 01)
02:02.0 USB controller: Intel Corporation Platform Controller Hub EG20T USB OHCI Controller #4 (rev 02)
02:02.1 USB controller: Intel Corporation Platform Controller Hub EG20T USB OHCI Controller #5 (rev 02)
02:02.2 USB controller: Intel Corporation Platform Controller Hub EG20T USB OHCI Controller #6 (rev 02)
02:02.3 USB controller: Intel Corporation Platform Controller Hub EG20T USB2 EHCI Controller #2 (rev 02)
02:02.4 USB controller: Intel Corporation Platform Controller Hub EG20T USB Client Controller (rev 02)
02:04.0 SD Host controller: Intel Corporation Platform Controller Hub EG20T SDIO Controller #1 (rev 01)
02:04.1 SD Host controller: Intel Corporation Platform Controller Hub EG20T SDIO Controller #2 (rev 01)
02:06.0 SATA controller: Intel Corporation Platform Controller Hub EG20T SATA AHCI Controller (rev 02)
02:08.0 USB controller: Intel Corporation Platform Controller Hub EG20T USB OHCI Controller #1 (rev 02)
02:08.1 USB controller: Intel Corporation Platform Controller Hub EG20T USB OHCI Controller #2 (rev 02)
02:08.2 USB controller: Intel Corporation Platform Controller Hub EG20T USB OHCI Controller #3 (rev 02)
02:08.3 USB controller: Intel Corporation Platform Controller Hub EG20T USB2 EHCI Controller #1 (rev 02)
02:0a.0 Unassigned class [ff00]: Intel Corporation Platform Controller Hub EG20T DMA Controller #1
02:0a.1 Serial controller: Intel Corporation Platform Controller Hub EG20T UART Controller 0 (rev 01)
02:0a.2 Serial controller: Intel Corporation Platform Controller Hub EG20T UART Controller 1
02:0a.3 Serial controller: Intel Corporation Platform Controller Hub EG20T UART Controller 2
02:0a.4 Serial controller: Intel Corporation Platform Controller Hub EG20T UART Controller 3
02:0c.0 Unassigned class [ff00]: Intel Corporation Platform Controller Hub EG20T DMA Controller #2
02:0c.1 Serial bus controller [0c80]: Intel Corporation Platform Controller Hub EG20T Serial Peripheral Interface Bus
02:0c.2 Serial bus controller [0c80]: Intel Corporation Platform Controller Hub EG20T I2C Controller
02:0c.3 CANBUS: Intel Corporation Platform Controller Hub EG20T Controller Area Network (CAN) Controller
02:0c.4 Unassigned class [ff00]: Intel Corporation Platform Controller Hub EG20T IEEE 1588 Hardware Assist (rev 01)
03:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
$ ifconfig -a
can0: flags=128<NOARP>  mtu 16
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 
txqueuelen 10  (UNSPEC)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 18

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536

        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 0  (Local Loopback)
        RX packets 10  bytes 680 (680.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 10  bytes 680 (680.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

p2p1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500

        inet 192.168.0.188  netmask 255.255.255.0  broadcast 0.0.0.0
        inet6 fe80::290:fbff:fe47:a609  prefixlen 64  scopeid 0x20<link>
        ether 00:90:fb:47:a6:09  txqueuelen 1000  (Ethernet)
        RX packets 12220  bytes 11590749 (11.0 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 4608  bytes 384987 (375.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 17  memory 0xd0300000-d0320000
maintainer
#3 lore raw
Quoted 19 lines · Luc Richer
Quoted 18 lines · Marc Kleine-Budde
Quoted 8 lines · Luc Richer

I am trying to interface with vehicle engine using Intel EG20T chipset.

This board does have a pinout for CANbus interface, and I believe I have determined the correct module for the interface is pch_can
http://cateee.net/lkddb/web-lkddb/PCH_CAN.html
Someone told me I may need the i2c module for this chipset as well, so I have loaded it also (i2c_eg20t)

Quoted 7 lines

I have loaded the modules for the can interface (can, can-dev, can-raw, can-bcm) along with i2c_eg20t and pch_can.

dmesg | grep can reveals
can: controller area network core (rev 20120528 abi 9)
can: raw protocol (rev 20120528)
can: broadcast manager protocol (rev 20120528 t)

Please send the output of:

Quoted 7 lines
Quoted 5 lines

lspci
ifconfig -a

Marc

I have made some advancement and now have the interface detected but can't seem to bring it up.

How do you try do bring it up?

Marc

Signature · 4 lines
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |