Commit Graph

25 Commits

Author SHA1 Message Date
Eric Dumazet
807540baae drivers/net: return operator cleanup
Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-09-26 18:34:29 -07:00
Grant Likely
2dc1158137 of/device: Replace struct of_device with struct platform_device
of_device is just an alias for platform_device, so remove it entirely.  Also
replace to_of_device() with to_platform_device() and update comment blocks.

This patch was initially generated from the following semantic patch, and then
edited by hand to pick up the bits that coccinelle didn't catch.

@@
@@
-struct of_device
+struct platform_device

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: David S. Miller <davem@davemloft.net>
2010-08-06 09:25:50 -06:00
Grant Likely
22ae782f86 of/address: Clean up function declarations
This patch moves the declaration of of_get_address(), of_get_pci_address(),
and of_pci_address_to_resource() out of arch code and into the common
linux/of_address header file.

This patch also fixes some of the asm/prom.h ordering issues.  It still
includes some header files that it ideally shouldn't be, but at least the
ordering is consistent now so that of_* overrides work.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-08-01 01:42:42 -06:00
Grant Likely
cf9b59e9d3 Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.

Conflicts:
	drivers/i2c/busses/i2c-cpm.c
	drivers/i2c/busses/i2c-mpc.c
	drivers/net/gianfar.c

Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-22 00:36:56 -06:00
Grant Likely
4018294b53 of: Remove duplicate fields from of_platform_driver
.name, .match_table and .owner are duplicated in both of_platform_driver
and device_driver.  This patch is a removes the extra copies from struct
of_platform_driver and converts all users to the device_driver members.

This patch is a pretty mechanical change.  The usage model doesn't change
and if any drivers have been missed, or if anything has been fixed up
incorrectly, then it will fail with a compile time error, and the fixup
will be trivial.  This patch looks big and scary because it touches so
many files, but it should be pretty safe.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
2010-05-22 00:10:40 -06:00
Grant Likely
61c7a080a5 of: Always use 'struct device.of_node' to get device node pointer.
The following structure elements duplicate the information in
'struct device.of_node' and so are being eliminated.  This patch
makes all readers of these elements use device.of_node instead.

(struct of_device *)->node
(struct dev_archdata *)->prom_node (sparc)
(struct dev_archdata *)->of_node (powerpc & microblaze)

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-18 16:10:44 -06:00
Anton Vorontsov
08d18f3b62 fsl_pq_mdio: Fix mdiobus allocation handling
The driver could return success code even if mdiobus_alloc() failed.
This patch fixes the issue.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-05-17 17:44:46 -07:00
Anton Vorontsov
3b1fd3e55a fsl_pq_mdio: Fix kernel oops during OF address translation
Old P1020RDB device trees were not specifing tbipa address for
MDIO nodes, which is now causing this kernel oops:

 ...
 eth2: TX BD ring size for Q[6]: 256
 eth2: TX BD ring size for Q[7]: 256
 Unable to handle kernel paging request for data at address 0x00000000
 Faulting instruction address: 0xc0015504
 Oops: Kernel access of bad area, sig: 11 [#1]
 ...
 NIP [c0015504] memcpy+0x3c/0x9c
 LR [c000a9f8] __of_translate_address+0xfc/0x21c
 Call Trace:
 [df839e00] [c000a94c] __of_translate_address+0x50/0x21c (unreliable)
 [df839e50] [c01a33e8] get_gfar_tbipa+0xb0/0xe0
 ...

The old device trees are buggy, though having a dead ethernet is
better than a dead kernel, so fix the issue by using of_iomap().

Also, a somewhat similar issue exist in the probe() routine, though
there the oops is only a possibility. Nonetheless, fix it too.

Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-04-23 16:20:25 -07:00
Anton Vorontsov
b3319b1052 fsl_pq_mdio: Fix iomem unmapping for non-eTSEC2.0 controllers
We use a rather complicated logic to support eTSEC and eTSEC2.0
registers maps in a single driver. Currently, the code tries to
unmap 'regs', but for non-eTSEC2.0 controllers 'regs' doesn't
point to a mapping start, and this might cause badness on probe
failure or module removal:

 Freescale PowerQUICC MII Bus: probed
 Trying to vfree() nonexistent vm area (e107f000)
 ------------[ cut here ]------------
 Badness at c00a7754 [verbose debug info unavailable]
 NIP: c00a7754 LR: c00a7754 CTR: c02231ec
 [...]
 NIP [c00a7754] __vunmap+0xec/0xf4
 LR [c00a7754] __vunmap+0xec/0xf4
 Call Trace:
 [df827e50] [c00a7754] __vunmap+0xec/0xf4 (unreliable)
 [df827e70] [c001519c] iounmap+0x44/0x54
 [df827e80] [c028b924] fsl_pq_mdio_probe+0x1cc/0x2fc
 [df827eb0] [c02fb9b4] of_platform_device_probe+0x5c/0x84
 [df827ed0] [c0229928] really_probe+0x78/0x1a8
 [df827ef0] [c0229b20] __driver_attach+0xa4/0xa8

Fix this by introducing a proper priv structure (finally!), which
now holds 'regs' and 'map' fields separately.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-12-30 22:03:43 -08:00
David S. Miller
d0e1e88d6e Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/can/usb/ems_usb.c
2009-11-08 23:00:54 -08:00
Sebastian Siewior
2606289779 net/fsl_pq_mdio: add module license GPL
or it will taint the kernel and fail to load becuase
of_address_to_resource() is GPL only.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08 00:49:04 -08:00
Anton Vorontsov
6748f60b94 fsl_pq_mdio: Fix compiler/sparse warnings (part 2)
This patch fixes following warnings:

fsl_pq_mdio.c:112:38: warning: cast adds address space to expression (<asn:2>)
fsl_pq_mdio.c:124:38: warning: cast adds address space to expression (<asn:2>)
fsl_pq_mdio.c:133:38: warning: cast adds address space to expression (<asn:2>)
fsl_pq_mdio.c:414:11: warning: cast adds address space to expression (<asn:2>)

Instead of adding __force all over the place, introduce convenient
fsl_pq_mdio_get_regs() call that does the ugly casting just once.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08 00:43:17 -08:00
Anton Vorontsov
2951d64e70 fsl_pq_mdio: Fix compiler/sparse warnings (part 1)
commit 1d2397d742 ("fsl_pq_mdio: Add
Suport for etsec2.0 devices") introduced the following warnings:

  CHECK   fsl_pq_mdio.c
fsl_pq_mdio.c:287:22: warning: incorrect type in initializer (different base types)
fsl_pq_mdio.c:287:22:    expected unknown type 11 const *__mptr
fsl_pq_mdio.c:287:22:    got unsigned long long [unsigned] [assigned] [usertype] addr
fsl_pq_mdio.c:287:19: warning: incorrect type in assignment (different base types)
fsl_pq_mdio.c:287:19:    expected unsigned long long [unsigned] [usertype] ioremap_miimcfg
fsl_pq_mdio.c:287:19:    got struct fsl_pq_mdio *<noident>
  CC      fsl_pq_mdio.o
fsl_pq_mdio.c: In function 'fsl_pq_mdio_probe':
fsl_pq_mdio.c:287: warning: initialization makes pointer from integer without a cast
fsl_pq_mdio.c:287: warning: assignment makes integer from pointer without a cast

These warnings are not easy to fix without ugly __force casts. So,
instead of introducing the casts, rework the code to substitute an
offset from an already mapped area. This makes the code a lot simpler
and less duplicated.

Plus, from now on we don't actually map reserved registers on
non-etsec2.0 devices, so we have more chances to catch programming
errors.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-08 00:43:14 -08:00
Sandeep Gopalpet
1d2397d742 fsl_pq_mdio: Add Suport for etsec2.0 devices.
This patch adds mdio support for etsec2.0 devices.

Modified the fsl_pq_mdio structure to include the new mdio
members.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-11-02 23:40:57 -08:00
Anton Vorontsov
e72701acbe net: Fix OF platform drivers coldplug/hotplug when compiled as modules
Some OF platform drivers are missing module device tables, so they won't
load automatically on boot. This patch fixes the issue by adding proper
MODULE_DEVICE_TABLE() macros to the drivers.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-14 14:54:52 -07:00
Ionut Nicu
e2a61fa313 fsl_pq_mdio: Fix fsl_pq_mdio to work with modules
This patch fixes the case when ucc_geth or gianfar are compiled
as modules. Without this patch the call to phy_connect() fails.

Signed-off-by: Ionut Nicu <ionut.nicu@freescale.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-25 20:03:53 -07:00
Haiying Wang
fbcc0e2ce5 fsl_pq_mido: Set the first UCC as the mii management interface master
Current code makes the UCC whose register range includes the current mdio
register to be the MII managemnt interface master of the QE. If there is more
than one mdio bus for QE, the UCC of the last mdio bus will be the MII
management interface master which will make the primary mdio bus working
unproperly, e.g. can not get the right clock. Normally the primary mdio bus is
the first UEC's mdio bus.
This patch allows the first UCC to be the MII management interface master of the
multiple UCC mdio buses.

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-06-03 02:52:46 -07:00
Grant Likely
434e7b0d12 net: fix fsl_pq_mdio driver to use module_init()
Modules are not supposed to use any of the *_initcall*() hooks as
the entry point.  fsl_pq_mdio.c was using subsys_initcall_sync()
instead of module_init() to guarantee that the MDIO bus was initialized
before the Ethernet driver goes looking for the phy.  However, the recent
OF helpers rework happens to also make sure PHY connection is deferred to
.open time, so using an initcall is no longer necessary.

This patch replaces the initcall with a more traditional an accepted
module_init() call.

Tested on Freescale MPC8349emitxgp eval board.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 02:53:53 -07:00
Grant Likely
324931ba21 net: rework fsl_pq_mdio driver to use of_mdio infrastructure
This patch simplifies the driver by making use of more common code.

Tested on Freescale MPC8349emitxgp eval board

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-27 02:53:48 -07:00
Segher Boessenkool
b6bc978b36 fsl_pq_mdio: Fix compile failure
Add EXPORT_SYMBOL_GPL(fsl_pq_mdio_bus_name) for module builds

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02 13:57:30 -07:00
Anton Vorontsov
0ac023faa6 fsl_pq_mdio: Revive UCC MDIO support
commit 1577ecef76 ("netdev: Merge UCC
and gianfar MDIO bus drivers") introduced a regression so that UCC
MDIO buses no longer work.

This is because fsl_pq_mdio driver wrongly masks all non-TBI PHYs
for !fsl,gianfar-mdio buses, while it should do that only for
fsl,gianfar-tbi buses.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-02 01:28:00 -07:00
Anton Vorontsov
18f27383d9 fsl_pq_mdio: Use proper address translation
Currently the driver just read "reg" property for constructing MDIO
bus IDs, but this won't work when we'll start using "ranges = <>" in
the device tree, so this will pop up:

Freescale PowerQUICC MII Bus: probed
sysfs: duplicate filename 'mdio@520' can not be created
------------[ cut here ]------------
Badness at c00cb6b8 [verbose debug info unavailable]
NIP: c00cb6b8 LR: c00cb6b8 CTR: c001271c
REGS: cf82fc10 TRAP: 0700   Not tainted  (2.6.29-rc7-03702-g7ccd10f)
MSR: 00029032 <EE,ME,CE,IR,DR>  CR: 42044022  XER: 20000000
TASK = cf81fbd0[1] 'swapper' THREAD: cf82e000
GPR00: c00cb6b8 cf82fcc0 cf81fbd0 0000003b 00000e42 ffffffff 00004000 00000e42
GPR08: c03cb0fc c03bfbdc 00000e42 c03cac50 22044022 1006a2bc 0ffcb000 00000000
GPR16: 0ffc04b0 0ffc5a40 00000000 0ffc79a8 0f7863a8 00000004 00000000 00000000
GPR24: c033a6a8 d1014520 cf85e840 cf82fd08 cf87cf2c cf82fcd8 cf85dea8 ffffffef
NIP [c00cb6b8] sysfs_add_one+0x4c/0x54
LR [c00cb6b8] sysfs_add_one+0x4c/0x54
Call Trace:
[cf82fcc0] [c00cb6b8] sysfs_add_one+0x4c/0x54 (unreliable)
[cf82fcd0] [c00cbc18] create_dir+0x58/0xc0
[cf82fd00] [c00cbcc0] sysfs_create_dir+0x40/0x70
[cf82fd20] [c0159388] create_dir+0x28/0x78
[cf82fd30] [c0159824] kobject_add_internal+0x98/0x13c
[cf82fd50] [c0159e98] kobject_add+0x60/0x98
[cf82fd80] [c018a480] device_add+0x98/0x2ac
[cf82fda0] [c01a2380] mdiobus_register+0xbc/0x1c0
[cf82fdc0] [c019f31c] fsl_pq_mdio_probe+0x284/0x2a0
[cf82fe00] [c0223814] of_platform_device_probe+0x5c/0x84
...

This patch fixes the issue by translating the "reg" property to a full
address, and thus avoids the duplicate names.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-23 15:37:09 -07:00
Anton Vorontsov
301968451d fsl_pq_mdio: Revive Gianfar TBI PHY support
commit 1577ecef76 ("netdev: Merge UCC
and gianfar MDIO bus drivers") broke the TSEC TBI PHY support: the
driver now refuses to probe TBI MDIO buses as it doesn't know about
"fsl,gianfar-tbi" compatible entry, and thus _probe() fails with
-ENODEV status.

Fix this by adding "fsl,gianfar-tbi" to the list of known Gianfar
MDIO buses.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-03-21 13:30:05 -07:00
David S. Miller
508827ff0a Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/tokenring/tmspci.c
	drivers/net/ucc_geth_mii.c
2009-03-05 02:06:47 -08:00
Andy Fleming
1577ecef76 netdev: Merge UCC and gianfar MDIO bus drivers
The MDIO bus drivers for the UCC and gianfar ethernet controllers are
essentially the same.  There's no reason to duplicate that much code.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-04 16:42:35 -08:00