PCMCIA support for 860 -- lost interrupt

[Shuangjun Zhu]

1. why "lost interrupt"? irq for IDE is 9, PCMCIA_INTERRUPT=13,
   so, which hardware trigger IRQ 9?
2. why vpp=0.0, where can I change it, in ide_cs.c or m8xx_pcmcia.c?

Note:

I have changed arch/ppc/kernel/ppc8xx_pic.c, so that request_irq() looks
like this:
int request_irq(unsigned int irq, void (*handler)(int, void *, struct
pt_regs *),
 unsigned long irqflags, const char * devname, void *dev_id)
{
#ifdef CONFIG_MBX
        irq += i8259_pic.irq_offset;
#endif
 return (request_8xxirq(irq, handler, irqflags, devname, dev_id));
}
but the error information like following:
-------------------------------------------------------------
<30>Feb 16 20:38:12 cardmgr[128]: executing: 'insmod
/lib/modules/2.2.13/pcmci'
hda: , ATA DISK drive
hdb: probing with STATUS(0x00) instead of ALTSTATUS(0xb0)
hdb: no response (status = 0xa1), resetting drive
hdb: no response (status = 0xa1)
ide0 at 0x108-0x10f,0x10e on irq 9
hda: , 23MB w/0kB Cache, CHS=375/8/16
Partition check:
 hda:hda: lost interrupt
hda: lost interrupt
hda: lost interrupt
hda: lost interrupt
 unknown partition table
ide_cs: hda: Vcc = 5.0, Vpp = 0.0
I<30>Feb 16 20:39:09 cardmgr[128]: executing: './ide start hda'
 hda:hda: lost interrupt
hda: lost interrupt
 unknown partition table
hda: lost interrupt
hda: drive_cmd: status=0x51 { DriveReady SeekComplete Error }
hda: drive_cmd: error=0x04 { DriveStatusError }

bash#


>
>In arch/ppc/kernel/m8xx_setup.c:m8xx_ide_init_hwif_ports()
>==============================================================
> base = (unsigned long) ioremap(PCMCIA_MEM_ADDR, 0x200);
>
> /* For the M-Systems ATA card, the first 8 registers map 1:1.
>  * The following register, control/Altstatus, is located at 0x0e.
>  * Following that, the irq offset, is not used, so we place it in
>  * an unused location, 0x0a.
>  */
> *p++ = base + 8;
>=================================================================
>This code means that ide_ioreg_t save the value as VMA, such 0xCxxxxxxx,
>but in include/asm/io.h, it defined
>
>#define outb(val, port)  out_8((unsigned char *)((port)+_IO_BASE), (val))
>
>it uses the port as register offset, such as 0x10.
>
>So, code access illegal address in macro
> SELECT_DRIVE in drivers/block/ide-probe.c: do_probe()
>
>
>
>>
>>In arch/ppc/mm/init.c, I have iorempa(_IO_BASE,_IO_BASE_SIZE),
>>which _IO_BASE = 0x80000000,
>>
>>in macro SELECT_DRIVE in drivers/block/ide-probe.c: do_probe()
>>OUT_BYTE((drive)->select.all, hwif->io_ports[IDE_SELECT_OFFSET])
>>equal to OUT_BYTE((drive)->select.all, 0x80000000),
>>then system illegal access, so what's wrong?
>>
>>Thanks in advanced!
>>
>>>
>>>Hi,
>>>
>>>
>>>
>>>I recompiled the kernel (2.2.13, including fpu, damm, bossek patches) and
>>>restarted it.
>>>Then I used the rc.pcmcia to set the modules up. It fails because of...
>>>
>>>I found that system acess the illegal address 0x80000000,
>>>in macro SELECT_DRIVE in drivers/block/ide-probe.c: do_probe()
>>>
>>>-------------------------------------------------------------------------
-
>>>bash# ./rc.pcmcia start
>>>Starting PCMCIA services: modulesLinux PCMCIA Card Services 3.1.10
>>>  kernel build: 2.2.13 #496 Fri May 19 11:14:29 CST 2000
>>>  options:  none
>>>m8xx_pcmcia: Version 0.03, 14-Feb-2000, Magnus Damm
>>>m8xx_pcmcia: FADS using SLOT_B with IRQ 13.
>>> cardmgr.
>>>H<30>Jan  1 00:35:21 cardmgr[131]: starting, version is 3.1.10
>>>bash# A<30>Jan  1 00:35:22 cardmgr[131]: watching 1 sockets
>>>A<30>Jan  1 00:35:22 cardmgr[131]: initializing socket 0
>>>I<30>Jan  1 00:35:22 cardmgr[131]: socket 0: ATA/IDE Fixed Disk
>>>a<30>Jan  1 00:35:22 cardmgr[131]: executing: 'insmod
>>>/lib/modules/2.2.13/pcmci'
>>>probing for hda: present=0, media=32, probetype=ATA
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
>
>


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