diff options
| author | Timur Tabi <timur@freescale.com> | 2011-10-04 16:44:43 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2011-10-09 17:57:53 -0500 |
| commit | 30381716284b688cb1b4e315aa6b8ef7422fa172 (patch) | |
| tree | dcc69b390f3aa32f12547903f19c4ebc336cc568 /drivers/net/fm | |
| parent | 712cf7ab0b58e51a69e339397457d3591b6b650e (diff) | |
powerpc/85xx: fix null pointer dereference when init the SGMII TBI PHY
Function dtsec_configure_serdes() needs to know where the TBI PHY registers
are in order to configure SGMII for proper SerDes operation.
During SGMII initialzation, fm_eth_init_mac() passing NULL for 'phyregs'
when it called init_dtsec(), because it was believed that phyregs was not
used. In fact, it is used by dtsec_configure_serdes() to configure the TBI
PHY registers.
We also need to define the PHY registers in struct fm_mdio.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/net/fm')
| -rw-r--r-- | drivers/net/fm/dtsec.c | 2 | ||||
| -rw-r--r-- | drivers/net/fm/eth.c | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/fm/dtsec.c b/drivers/net/fm/dtsec.c index a77ee20f3..7dd78f2e9 100644 --- a/drivers/net/fm/dtsec.c +++ b/drivers/net/fm/dtsec.c @@ -171,7 +171,7 @@ void init_dtsec(struct fsl_enet_mac *mac, void *base, void *phyregs, int max_rx_len) { mac->base = base; - mac->phyregs = NULL; + mac->phyregs = phyregs; mac->max_rx_len = max_rx_len; mac->init_mac = dtsec_init_mac; mac->enable_mac = dtsec_enable_mac; diff --git a/drivers/net/fm/eth.c b/drivers/net/fm/eth.c index 308d610a7..f7ed850c9 100644 --- a/drivers/net/fm/eth.c +++ b/drivers/net/fm/eth.c @@ -537,6 +537,7 @@ static int fm_eth_init_mac(struct fm_eth *fm_eth, struct ccsr_fman *reg) /* Get the mac registers base address */ if (fm_eth->type == FM_ETH_1G_E) { base = ®->mac_1g[num].fm_dtesc; + phyregs = ®->mac_1g[num].fm_mdio.miimcfg; } else { base = ®->mac_10g[num].fm_10gec; phyregs = ®->mac_10g[num].fm_10gec_mdio; @@ -552,7 +553,7 @@ static int fm_eth_init_mac(struct fm_eth *fm_eth, struct ccsr_fman *reg) fm_eth->mac = mac; if (fm_eth->type == FM_ETH_1G_E) - init_dtsec(mac, base, NULL, MAX_RXBUF_LEN); + init_dtsec(mac, base, phyregs, MAX_RXBUF_LEN); else init_tgec(mac, base, phyregs, MAX_RXBUF_LEN); |