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To: Richard J Kuhns <rjk@sparcmill.grauel.com>
cc: Richard J Kuhns <rjk@watson.grauel.com>, freebsd-stable@freebsd.org
Subject: Re: One problem && one question 
In-reply-to: Your message of "Mon, 12 Feb 1996 14:36:12 +0500."
             <9602121936.AA15018@sparcmill.grauel.com> 
Date: Mon, 12 Feb 1996 12:53:46 -0800
From: "Justin T. Gibbs" <gibbs@freefall.freebsd.org>
Sender: owner-stable@freebsd.org
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>Justin T. Gibbs writes:
>
>Thanks, Justin.
>
>I just made that change and built a new kernel.  The good news is, the pci
>probe found the 946.  The bad news is, the kernel won't boot.  The message
>is `bt0: Invalid base address', followed almost immediately by the ``reboot
>in 15 seconds'' message.  The only difference between the 2 kernels is the
>line above.  Unfortunately, none of the boot messages hung around to be
>printed later by dmesg.
>
>Anything else I can do to make your day more enjoyable? :-)
>--
>Rich Kuhns			rjk@grauel.com
>PO Box 6249
>100 Sawmill Road
>Lafayette, IN  47903
>(317)477-6000 x319

Can you try this patch.  I'm away from my machine at the moment,
so you may need to tweak it to get it to compile.
--
Justin T. Gibbs
===========================================
  FreeBSD: Turning PCs into workstations
===========================================


Index: bt9xx.c
===================================================================
RCS file: /home/ncvs/src/sys/pci/bt9xx.c,v
retrieving revision 1.5
diff -c -r1.5 bt9xx.c
*** bt9xx.c	1996/02/12 17:00:39	1.5
--- bt9xx.c	1996/02/12 20:51:26
***************
*** 35,41 ****
  #include <i386/scsi/btreg.h>
  
  /* XXX Need more device IDs */
- #define PCI_BASEADR0	PCI_MAP_REG_START
  #define PCI_DEVICE_ID_BUSLOGIC_946	0x1040104Bul
  
  static char* bt_pci_probe __P((pcici_t tag, pcidi_t type));
--- 35,40 ----
***************
*** 70,86 ****
  	pcici_t config_id;
  	int	unit;
  {
  	u_long io_port;
  	unsigned opri = 0;
  	struct bt_data *bt;
  
!         if(!(io_port = pci_conf_read(config_id, PCI_BASEADR0)))
  		return;
- 	/*
- 	 * The first bit of PCI_BASEADR0 is always
- 	 * set hence we mask it off.
- 	 */
- 	io_port &= 0xfffffffe;
  
  	if(!(bt = bt_alloc(unit, io_port)))
  		return;  /* XXX PCI code should take return status */
--- 69,89 ----
  	pcici_t config_id;
  	int	unit;
  {
+ 	int reg;
  	u_long io_port;
  	unsigned opri = 0;
  	struct bt_data *bt;
  
! 	for(reg = PCI_MAP_REG_START; reg <= PCI_MAP_REG_END; reg++) {
! 	        if(!(io_port = pci_conf_read(config_id, reg)))
! 			return;
! 		if(io_port & PCI_MAP_IO) {
! 			ioport &= PCI_IO_MAP;
! 			break;
! 		}
! 	}
! 	if(reg > PCI_MAP_REG_END)
  		return;
  
  	if(!(bt = bt_alloc(unit, io_port)))
  		return;  /* XXX PCI code should take return status */