diff options
author | 2008-10-30 23:50:18 -0700 | |
---|---|---|
committer | 2008-10-30 23:50:18 -0700 | |
commit | 194dcdba5a11a0238aef7ed91f32df77cb31505b (patch) | |
tree | ad9b2e763d702ab59d176f3acc57dbb200afdad1 /arch/powerpc | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linvil... (diff) | |
parent | gianfar: Don't reset TBI<->SerDes link if it's already up (diff) | |
download | linux-194dcdba5a11a0238aef7ed91f32df77cb31505b.tar.gz linux-194dcdba5a11a0238aef7ed91f32df77cb31505b.tar.bz2 linux-194dcdba5a11a0238aef7ed91f32df77cb31505b.zip |
Merge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/sysdev/fsl_soc.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c index 01b884b25696..26ecb96f9731 100644 --- a/arch/powerpc/sysdev/fsl_soc.c +++ b/arch/powerpc/sysdev/fsl_soc.c @@ -223,6 +223,8 @@ static int gfar_mdio_of_init_one(struct device_node *np) if (ret) return ret; + /* The gianfar device will try to use the same ID created below to find + * this bus, to coordinate register access (since they share). */ mdio_dev = platform_device_register_simple("fsl-gianfar_mdio", res.start&0xfffff, &res, 1); if (IS_ERR(mdio_dev)) @@ -394,6 +396,30 @@ static int __init gfar_of_init(void) of_node_put(mdio); } + /* Get MDIO bus controlled by this eTSEC, if any. Normally only + * eTSEC 1 will control an MDIO bus, not necessarily the same + * bus that its PHY is on ('mdio' above), so we can't just use + * that. What we do is look for a gianfar mdio device that has + * overlapping registers with this device. That's really the + * whole point, to find the device sharing our registers to + * coordinate access with it. + */ + for_each_compatible_node(mdio, NULL, "fsl,gianfar-mdio") { + if (of_address_to_resource(mdio, 0, &res)) + continue; + + if (res.start >= r[0].start && res.end <= r[0].end) { + /* Get the ID the mdio bus platform device was + * registered with. gfar_data.bus_id is + * different because it's for finding a PHY, + * while this is for finding a MII bus. + */ + gfar_data.mdio_bus = res.start&0xfffff; + of_node_put(mdio); + break; + } + } + ret = platform_device_add_data(gfar_dev, &gfar_data, sizeof(struct |