drivers: net: convert drivers to spdx ...

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Roland Hieber <r.hieber@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include: Move smc91111 eth platform_data to include/platform_data ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

driver: replace dev_request_mem_region with dev_request_mem_resource ...

dev_request_mem_region doesn't work properly one some SoCs on which
PTR_ERR() values clash with valid return values from dev_request_mem_region.
Replace them with dev_request_mem_resource where possible.

This patch has been generated with the following semantic patch:

// <smpl>
@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
...
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
-	return PTR_ERR(io);
-}
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
-if (IS_ERR(io)) {
-	ret = PTR_ERR(io);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores)) {
+	ret = PTR_ERR(iores);
...
}
+io = IOMEM(iores->start);
...+>
}

@@
expression d;
expression n;
expression io;
identifier func;
@@
func(...) {
+struct resource *iores;
<+...
-io = dev_request_mem_region(d, n);
+iores = dev_request_mem_resource(d, n);
+if (IS_ERR(iores))
+	return PTR_ERR(iores);
+io = IOMEM(iores->start);
...+>
}

@@
identifier func;
@@
func(...) {
<+...
struct resource *iores;
-struct resource *iores;
...+>
}
// </smpl>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: fix ethernet mac setting ...

Even if the setting of the MAC address does work correctly, the function
return an error.

In the former barebox version, this didn't seem to be a problem. In
v2015.11.0 version, the "ifup eth0" command fails because of this, and
as a consequence the network interface doesn't work.

The fix is straightforward.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Make set_ethaddr argument const ...

The set_ethaddr callback should not modify the MAC address passed to it, so
make it const.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: add a quirk for pxa pxa27x platforms ...

As hinted in the linux kernel driver, pxa platforms such as mainstone,
stargate and idp have a broken design, where half-word writes not
aligned to a word address are not working.

This patch is a taking back the half-word write accessor for this
specific case from the linux kernel.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: fix platform data initializations ...

The configuration and control setup introduced in commit "extend the
driver for 91c94 and 91c96 support" suffers from a typo defect, which
makes the commit broken.

The typo happens to be in barebox tree, while it's not in the tested
patches I had, and there was a mismatch in my former submission, which
is fixed by this patch.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: improve debug capability ...

Improve smc1111 driver debug messages by printing the register accessed,
the current bank, and the values.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: extend the driver for 91c94 and 91c96 support ...

All the smcs family chips 91c94, 91c96, 91c100, 91c111 share almost the
same behavior and register sets. The noticeable exceptions are coped
with in this patch, ie :
 - 91c94 and 91c96 only have an internal 10 Mbps phy
   The registers used for phy discovery on later chips will corrupt the
   91c96 state.
 - 91c94 and 91c96 have a control and config register quite different
   from their 91c1xx conterparts
   A platform data user defined couple of registers is introduced. If
   these values are 0, 91c1xx legacy behavior is assumed.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: add 16 bits accessors, allow address shift ...

Smc network IPs can be wired up in different funny ways. For example the
lubbock pxa25x development platform wires all address lines shifted by
2, ie. bus A2 is smc91c96 A0, bus A3 is smc91c96 A1 etc ...

In order to cope with the different possible combination, add a shift
parameter for addresses.

By default, the old behaviour using the 32 bit accesses is kept.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/arm'

net: smc1111: fix memory congestions ...

As the SMC1111 has a shared pool of 2k memory buckets for both
transmission and reception, and as there are variants which have as few
as 4 buckets in total, the memory pool can be hogged by unclaimed
receptions, and impeed any further transmission.

This happens on the zylonite pxa board, where 4 packets, most probably
icmp and arp, fill the 4 buckets, preventing any further ethernet
transmission, and stalling the driver.

The fix is rather rough : whenever all the buckets are filled by
reception packets, and if a transmission is required, the transmission
code path will empty up all received packets.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: smc1111: move print_packet function ...

Fix for a compiler complaint, because print_packet is needed by a
function before it is declared.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

resource: Let dev_request_mem_region return an error pointer ...

For all users fix or add the error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: Pass eth_device to net_receive ...

So that barebox has the information which interface a packet
came from.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

smc91111: add fixup for qemu phy support ...

as today qemu does not support phy, it will return always 0x0 to any read
on the mii bus. So the phy_id is 0 and the link is donw.

To have the norwork running on versatilpb & other qenu board for the link up
at 100Mbps.

Only enable if qemu_fixup is set.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

remove unused debug Kconfig options ...

ENABLE_DEVICE_NOISE is used only in two network drivers and is
otherwise unused. ENABLE_FLASH_NOISE is completely unused.
ENABLE_PARTITION_NOISE enables DEBUG in the partition command,
but this code has no debug messages at all.

Remove all this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

smc911111: fix send and recv return value ...

on error send error code and 0 on success

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Use new device_platform_driver() macro for drivers ...

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

switch all platform_bus device/driver registering to platform_driver/device_register ...

now register_driver and register_device are for bus only usage.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Merge branch 'for-next/remove-fsf-address' ...

Conflicts:
	drivers/net/miidev.c
	include/miidev.h

net: introduce phylib ...

Adapt phylib from linux

switch all the driver to it
reimplement mii bus

This will allow to have
 - phy drivers
 - to only connect the phy at then opening of the device
 - if the phy is not ready or not up fail on open

Same behaviour as in linux and will allow to share code and simplify porting.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net drivers: remove unused type_data ...

Many net drivers set dev->type_data without ever using it, so
just remove it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

introduce io.h ...

To allow for some generic io accessors introduce io.h and use
this instead of asm/io.h throughout the tree.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net mii: add a parent pointer to miidevs and set it to the hardware device ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: make the ethernet device a child of the hardware device ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

smc91111: switch to resources ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

smc91111: Various sparse fixes. ...

Patch fix all similar warnings found by sparse:
drivers/net/smc91111.c:488:9:
warning: incorrect type in argument 1 (different base types)
	expected void const volatile [noderef] <asn:2>*<noident>
	got unsigned long [unsigned] offset

Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: rework the mii support ...

this rework is done in order to add a phylib and allow to have phy driver support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>