i386/53136: [patch] intel 82855 chipset support for AGP

[Kyunghwan Kim]

>Number:         53136
>Category:       i386
>Synopsis:       [patch] i855 chipset support for AGP
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-i386
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jun 10 00:30:05 PDT 2003
>Closed-Date:
>Last-Modified:
>Originator:     Kyunghwan Kim
>Release:        FreeBSD 5.1-CURRENT i386
>Organization:
>Environment:
>Description:
	Without proper AGP offset setting,
	X can't probe LCD panel size and X crashes.

>How-To-Repeat:
>Fix:

Diff against agp_intel.c revision 1.15
--- agp_intel.c.orig	Tue Jun 10 07:22:17 2003
+++ agp_intel.c	Tue Jun 10 07:23:45 2003
@@ -99,6 +99,9 @@
 	case 0x25308086:
 		return ("Intel 82850 host to AGP bridge");
 
+	case 0x33408086:
+		return ("Intel 82855 host to AGP bridge");
+
 	case 0x25318086:
 		return ("Intel 82860 host to AGP bridge");
 
@@ -202,6 +205,7 @@
 		break;
 
 	case 0x1a308086: /* i845 */
+	case 0x33408086: /* i855 */
 	case 0x25708086: /* i865 */
 		pci_write_config(dev, AGP_INTEL_I845_MCHCFG,
 				 (pci_read_config(dev, AGP_INTEL_I845_MCHCFG, 1)
@@ -223,6 +227,7 @@
 	case 0x25018086: /* i820 */
 	case 0x1a308086: /* i845 */
 	case 0x25308086: /* i850 */
+	case 0x33408086: /* i855 */
 	case 0x25318086: /* i860 */
 	case 0x25708086: /* i865 */
 		pci_write_config(dev, AGP_INTEL_I8XX_ERRSTS, 0x00ff, 2);
@@ -267,6 +272,7 @@
 				& ~(1 << 1)), 1);
 
 	case 0x1a308086: /* i845 */
+	case 0x33408086: /* i855 */
 	case 0x25708086: /* i865 */
 		printf("%s: set MCHCFG to %x\n", __func__, (unsigned)
 				(pci_read_config(dev, AGP_INTEL_I845_MCHCFG, 1)

>Release-Note:
>Audit-Trail:
>Unformatted: