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 | |
| parent | 712cf7ab0b58e51a69e339397457d3591b6b650e (diff) | |
| download | blackbird-obmc-uboot-30381716284b688cb1b4e315aa6b8ef7422fa172.tar.gz blackbird-obmc-uboot-30381716284b688cb1b4e315aa6b8ef7422fa172.zip | |
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>
| -rw-r--r-- | arch/powerpc/include/asm/fsl_fman.h | 9 | ||||
| -rw-r--r-- | drivers/net/fm/dtsec.c | 2 | ||||
| -rw-r--r-- | drivers/net/fm/eth.c | 3 |
3 files changed, 11 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/fsl_fman.h b/arch/powerpc/include/asm/fsl_fman.h index fddc0cc8cb..2c0c9bc2f2 100644 --- a/arch/powerpc/include/asm/fsl_fman.h +++ b/arch/powerpc/include/asm/fsl_fman.h @@ -405,7 +405,14 @@ typedef struct fm_dtesc { } fm_dtsec_t; typedef struct fm_mdio { - u8 res[4*1024]; + u8 res0[0x120]; + u32 miimcfg; /* MII management configuration reg */ + u32 miimcom; /* MII management command reg */ + u32 miimadd; /* MII management address reg */ + u32 miimcon; /* MII management control reg */ + u32 miimstat; /* MII management status reg */ + u32 miimind; /* MII management indication reg */ + u8 res1[0x1000 - 0x138]; } fm_mdio_t; typedef struct fm_10gec { diff --git a/drivers/net/fm/dtsec.c b/drivers/net/fm/dtsec.c index a77ee20f3b..7dd78f2e9d 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 308d610a78..f7ed850c91 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); |
