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| author | David S. Miller <davem@davemloft.net> | 2008-10-30 23:50:18 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-10-30 23:50:18 -0700 |
| commit | 194dcdba5a11a0238aef7ed91f32df77cb31505b (patch) | |
| tree | ad9b2e763d702ab59d176f3acc57dbb200afdad1 /arch | |
| parent | 19b8cba2e8539e3b8022316f94837d8f242b8f80 (diff) | |
| parent | bdb59f949d663b7e943fb5f40b2557af4314abf9 (diff) | |
| download | linux-194dcdba5a11a0238aef7ed91f32df77cb31505b.tar.gz | |
Merge branch 'davem-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
Diffstat (limited to 'arch')
| -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 |