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authorDavid S. Miller <davem@davemloft.net>2013-10-23 16:28:39 -0400
committerDavid S. Miller <davem@davemloft.net>2013-10-23 16:49:34 -0400
commitc3fa32b9764dc45dcf8a2231b1c110abc4a63e0b (patch)
tree6cf2896a77b65bec64284681e1c3851eb3263e09 /drivers/net/ethernet/davicom/dm9000.c
parent34d92d5315b64a3e5292b7e9511c1bb617227fb6 (diff)
parent320437af954cbe66478f1f5e8b34cb5a8d072191 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts: drivers/net/usb/qmi_wwan.c include/net/dst.h Trivial merge conflicts, both were overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/davicom/dm9000.c')
-rw-r--r--drivers/net/ethernet/davicom/dm9000.c56
1 files changed, 38 insertions, 18 deletions
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index be8efeea51f2..7080ad6c4014 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -158,18 +158,6 @@ static inline board_info_t *to_dm9000_board(struct net_device *dev)
/* DM9000 network board routine ---------------------------- */
-static void
-dm9000_reset(board_info_t * db)
-{
- dev_dbg(db->dev, "resetting device\n");
-
- /* RESET device */
- writeb(DM9000_NCR, db->io_addr);
- udelay(200);
- writeb(NCR_RST, db->io_data);
- udelay(200);
-}
-
/*
* Read a byte from I/O port
*/
@@ -191,6 +179,27 @@ iow(board_info_t * db, int reg, int value)
writeb(value, db->io_data);
}
+static void
+dm9000_reset(board_info_t *db)
+{
+ dev_dbg(db->dev, "resetting device\n");
+
+ /* Reset DM9000, see DM9000 Application Notes V1.22 Jun 11, 2004 page 29
+ * The essential point is that we have to do a double reset, and the
+ * instruction is to set LBK into MAC internal loopback mode.
+ */
+ iow(db, DM9000_NCR, 0x03);
+ udelay(100); /* Application note says at least 20 us */
+ if (ior(db, DM9000_NCR) & 1)
+ dev_err(db->dev, "dm9000 did not respond to first reset\n");
+
+ iow(db, DM9000_NCR, 0);
+ iow(db, DM9000_NCR, 0x03);
+ udelay(100);
+ if (ior(db, DM9000_NCR) & 1)
+ dev_err(db->dev, "dm9000 did not respond to second reset\n");
+}
+
/* routines for sending block to chip */
static void dm9000_outblk_8bit(void __iomem *reg, void *data, int count)
@@ -744,15 +753,20 @@ static const struct ethtool_ops dm9000_ethtool_ops = {
static void dm9000_show_carrier(board_info_t *db,
unsigned carrier, unsigned nsr)
{
+ int lpa;
struct net_device *ndev = db->ndev;
+ struct mii_if_info *mii = &db->mii;
unsigned ncr = dm9000_read_locked(db, DM9000_NCR);
- if (carrier)
- dev_info(db->dev, "%s: link up, %dMbps, %s-duplex, no LPA\n",
+ if (carrier) {
+ lpa = mii->mdio_read(mii->dev, mii->phy_id, MII_LPA);
+ dev_info(db->dev,
+ "%s: link up, %dMbps, %s-duplex, lpa 0x%04X\n",
ndev->name, (nsr & NSR_SPEED) ? 10 : 100,
- (ncr & NCR_FDX) ? "full" : "half");
- else
+ (ncr & NCR_FDX) ? "full" : "half", lpa);
+ } else {
dev_info(db->dev, "%s: link down\n", ndev->name);
+ }
}
static void
@@ -890,9 +904,15 @@ dm9000_init_dm9000(struct net_device *dev)
(dev->features & NETIF_F_RXCSUM) ? RCSR_CSUM : 0);
iow(db, DM9000_GPCR, GPCR_GEP_CNTL); /* Let GPIO0 output */
+ iow(db, DM9000_GPR, 0);
- dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET); /* PHY RESET */
- dm9000_phy_write(dev, 0, MII_DM_DSPCR, DSPCR_INIT_PARAM); /* Init */
+ /* If we are dealing with DM9000B, some extra steps are required: a
+ * manual phy reset, and setting init params.
+ */
+ if (db->type == TYPE_DM9000B) {
+ dm9000_phy_write(dev, 0, MII_BMCR, BMCR_RESET);
+ dm9000_phy_write(dev, 0, MII_DM_DSPCR, DSPCR_INIT_PARAM);
+ }
ncr = (db->flags & DM9000_PLATF_EXT_PHY) ? NCR_EXT_PHY : 0;