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[4/5] tg3: Disable 5717 serdes and B0 support

Message ID 1263327100-13554-5-git-send-email-mcarlson@broadcom.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Matt Carlson Jan. 12, 2010, 8:11 p.m. UTC 
The B0 revision of the 5717 will not get enough testing by the time
2.6.33 ships.  Since the kernel is already at RC3, serdes support
will require too many patches to fix.  For these reasons, this patch
disables 5717 serdes support and will refuse to attach to all 5717
devices that are later than an A0 revision.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
---
 drivers/net/tg3.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 0a632f9..2d1a740 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -13390,6 +13390,11 @@  static int __devinit tg3_get_invariants(struct tg3 *tp)
 	if (err)
 		return err;
 
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
+	    (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0 ||
+		 (tp->tg3_flags2 & TG3_FLG2_MII_SERDES)))
+		return -ENOTSUPP;
+
 	/* Initialize data/descriptor byte/word swapping. */
 	val = tr32(GRC_MODE);
 	val &= GRC_MODE_HOST_STACKUP;