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Fix TSEC driver (now for real): avoid crashes if PHY is not attached

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to a TSEC (e.g. a switch is connected via RMII) or
if the PHY is defective/incorrectly configured.

Signed-off-by: Ben Warren <bwarren@qstreams.com>
This commit is contained in:
Ben Warren 2006-10-26 14:38:25 -04:00 • committed by Wolfgang Denk
parent b985b5d6e4
commit 4653f91c13
1 changed files with 6 additions and 3 deletions
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9
drivers/tsec.c
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@ -313,7 +313,8 @@ static int init_phy(struct eth_device *dev)
* PHY */ * PHY */
curphy = get_phy_info(dev); curphy = get_phy_info(dev);
if (NULL == curphy) { if (curphy == NULL) {
priv->phyinfo = NULL;
printf("%s: No PHY found\n", dev->name); printf("%s: No PHY found\n", dev->name);
return 0; return 0;
@ -661,7 +662,8 @@ static void startup_tsec(struct eth_device *dev)
rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP; rtx.txbd[TX_BUF_CNT - 1].status |= TXBD_WRAP;
/* Start up the PHY */ /* Start up the PHY */
phy_run_commands(priv, priv->phyinfo->startup); if(priv->phyinfo)
phy_run_commands(priv, priv->phyinfo->startup);
adjust_link(dev); adjust_link(dev);
/* Enable Transmit and Receive */ /* Enable Transmit and Receive */
@ -765,7 +767,8 @@ static void tsec_halt(struct eth_device *dev)
regs->maccfg1 &= ~(MACCFG1_TX_EN | MACCFG1_RX_EN); regs->maccfg1 &= ~(MACCFG1_TX_EN | MACCFG1_RX_EN);
/* Shut down the PHY, as needed */ /* Shut down the PHY, as needed */
phy_run_commands(priv, priv->phyinfo->shutdown); if(priv->phyinfo)
phy_run_commands(priv, priv->phyinfo->shutdown);
} }
struct phy_info phy_info_M88E1011S = { struct phy_info phy_info_M88E1011S = {