Aren/NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

The Genesis interface provides a register in the device specific config space

Browse Source 
to automatically revert the byte order in all descriptors.
Make sure this feature is inactive. Otherwise the driver is unable to
receive or transmit any frame.
This commit is contained in:
phx 2011-05-29 13:31:30 +00:00
parent b38a19838c
commit 9a6f7751cf
2 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sys/dev/pci/if_sk.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: if_sk.c,v 1.68 2010/07/26 22:33:24 jym Exp $ */
/* $NetBSD: if_sk.c,v 1.69 2011/05/29 13:31:30 phx Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -115,7 +115,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: if_sk.c,v 1.68 2010/07/26 22:33:24 jym Exp $");
__KERNEL_RCSID(0, "$NetBSD: if_sk.c,v 1.69 2011/05/29 13:31:30 phx Exp $");
#include "rnd.h"
@ -1555,6 +1555,15 @@ skc_attach(device_t parent, device_t self, void *aux)
}
}
/*
* The firmware might have configured the interface to revert the
* byte order in all descriptors. Make that undone.
*/
command = pci_conf_read(pc, pa->pa_tag, SK_PCI_OURREG2);
if (command & SK_REG2_REV_DESC)
pci_conf_write(pc, pa->pa_tag, SK_PCI_OURREG2,
command & ~SK_REG2_REV_DESC);
/*
* Map control/status registers.
*/

5
sys/dev/pci/if_skreg.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: if_skreg.h,v 1.13 2008/11/18 09:30:43 chris Exp $ */
/* $NetBSD: if_skreg.h,v 1.14 2011/05/29 13:31:30 phx Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
@ -1513,6 +1513,9 @@
#define SK_Y2_REG1_PHY1_COMA 0x10000000
#define SK_Y2_REG1_PHY2_COMA 0x20000000
/* SK_PCI_OURREG2 32bits */
#define SK_REG2_REV_DESC 0x00000004 /* revert byte order in descriptor */
/* SK_PCI_OURREG4 32bits (Yukon-ECU only) */
#define SK_Y2_REG4_TIMER_VALUE_MSK (0xff << 16)
#define SK_Y2_REG4_FORCE_ASPM_REQUEST __BIT(15)