Currently, ppc44x use ppc branch, not powerpc, especially for AMCC yosemite 440ep.
Through adding printk in function ppc4xx_pic_init which is in arch/ppc/syslib/ppc4xx_pic.c, whether setting IRQ_LEVEL has no effect on it. BRs, Andrew Valentine Barshak wrote: > Stefan Roese wrote: >> On Monday 24 September 2007, Andrew Liu wrote: >>> By default, it is IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE >> >> And that should be correct for PCI interrupts. >> >>> I change it to IRQ_SENSE_EDGE | IRQ_POLARITY_NEGATIVE or >>> IRQ_SENSE_EDGE | IRQ_POLARITY_POSITIVE. >>> It displays: >>> eth2: link up, 100Mbps, full-duplex, lpa 0x45E1 >>> eth2: no IPv6 routers present >>> NETDEV WATCHDOG: eth2: transmit timed out >>> eth2: Transmit timeout, status 0c 0005 c07f media 10. >>> eth2: Tx queue start entry 4 dirty entry 0. >>> eth2: Tx descriptor 0 is 0008a05a. (queue head) >>> eth2: Tx descriptor 1 is 0008a04e. >>> eth2: Tx descriptor 2 is 0008a046. >>> eth2: Tx descriptor 3 is 0008a05a. >>> eth2: link up, 100Mbps, full-duplex, lpa 0x45E1 >>> >>> and >>> [EMAIL PROTECTED]:/root> ifconfig eth2 >>> eth2 Link encap:Ethernet HWaddr 00:0E:2E:7E:F5:E6 >>> inet addr:128.224.149.13 Bcast:128.224.255.255 >>> Mask:255.255.0.0 >>> inet6 addr: fe80::20e:2eff:fe7e:f5e6/64 Scope:Link >>> UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 >>> RX packets:0 errors:0 dropped:0 overruns:0 frame:0 >>> TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 >>> collisions:0 txqueuelen:1000 >>> RX bytes:0 (0.0 b) TX bytes:0 (0.0 b) >>> Interrupt:25 Base address:0x6f00 >>> >>> >>> and >>> [EMAIL PROTECTED]:/root> cat /proc/interrupts >>> CPU0 >>> 2: 0 UIC0 Edge IBM IIC >>> 7: 0 UIC0 Edge IBM IIC >>> 10: 11961 UIC0 Edge MAL TX EOB >>> 11: 18471 UIC0 Edge MAL RX EOB >>> 25: 0 UIC0 Edge eth2 >>> 32: 0 UIC1 Edge MAL SERR >>> 33: 0 UIC1 Edge MAL TX DE >>> 34: 0 UIC1 Edge MAL RX DE >>> 40: 32 UIC1 Edge ohci_hcd:usb1 >>> 60: 0 UIC1 Edge EMAC >>> BAD: 0 >>> >>> >>> Can PCI slot use level trigger? >>> >>> give me some advice. > > This could be caused by misseting the IRQ_lEVEL flag in desc->status. > There have been a commit 4dc7b4b0405fd7320940849b6e31ea8ea68fd0df that > fixes the problem. > Thanks, > Valentine. > >> >> Hmmm. Did you try an earlier Linux version too? For example 2.6.22 or >> even earlier? Please give it a try and let us know if the same >> problem occurs. >> >> Best regards, >> Stefan >> >> ===================================================================== >> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel >> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany >> Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: [EMAIL PROTECTED] >> ===================================================================== > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev