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authorDavid S. Miller <davem@davemloft.net>2008-10-31 02:50:18 -0400
committerDavid S. Miller <davem@davemloft.net>2008-10-31 02:50:18 -0400
commit194dcdba5a11a0238aef7ed91f32df77cb31505b (patch)
treead9b2e763d702ab59d176f3acc57dbb200afdad1 /arch/powerpc
parent19b8cba2e8539e3b8022316f94837d8f242b8f80 (diff)
parentbdb59f949d663b7e943fb5f40b2557af4314abf9 (diff)
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.c26
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)
223 if (ret) 223 if (ret)
224 return ret; 224 return ret;
225 225
226 /* The gianfar device will try to use the same ID created below to find
227 * this bus, to coordinate register access (since they share). */
226 mdio_dev = platform_device_register_simple("fsl-gianfar_mdio", 228 mdio_dev = platform_device_register_simple("fsl-gianfar_mdio",
227 res.start&0xfffff, &res, 1); 229 res.start&0xfffff, &res, 1);
228 if (IS_ERR(mdio_dev)) 230 if (IS_ERR(mdio_dev))
@@ -394,6 +396,30 @@ static int __init gfar_of_init(void)
394 of_node_put(mdio); 396 of_node_put(mdio);
395 } 397 }
396 398
399 /* Get MDIO bus controlled by this eTSEC, if any. Normally only
400 * eTSEC 1 will control an MDIO bus, not necessarily the same
401 * bus that its PHY is on ('mdio' above), so we can't just use
402 * that. What we do is look for a gianfar mdio device that has
403 * overlapping registers with this device. That's really the
404 * whole point, to find the device sharing our registers to
405 * coordinate access with it.
406 */
407 for_each_compatible_node(mdio, NULL, "fsl,gianfar-mdio") {
408 if (of_address_to_resource(mdio, 0, &res))
409 continue;
410
411 if (res.start >= r[0].start && res.end <= r[0].end) {
412 /* Get the ID the mdio bus platform device was
413 * registered with. gfar_data.bus_id is
414 * different because it's for finding a PHY,
415 * while this is for finding a MII bus.
416 */
417 gfar_data.mdio_bus = res.start&0xfffff;
418 of_node_put(mdio);
419 break;
420 }
421 }
422
397 ret = 423 ret =
398 platform_device_add_data(gfar_dev, &gfar_data, 424 platform_device_add_data(gfar_dev, &gfar_data,
399 sizeof(struct 425 sizeof(struct