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>

of: use of_property_read_bool where appropriate ...

Use of_property_read_bool where boolean properties are read.

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

net: dm9k: Fix buswidth setting for platform data probe ...

priv->buswidth expects IORESOURCE_MEM_* macros which are not
identical to the integer byte bus width, so calling
dm9000_setup_buswidth() for the platform_data case is wrong.

fixes: d818f02 net: dm9k: add device tree support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Reported by: 张忠山 <zzs213@126.com>

include: Move dm9000 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>

driver: Fix return check of dev_request_mem_region ...

dev_request_mem_region returns an ERR_PTR, fix places which check for a
NULL pointer instead. This patch has been generated with this semantic
patch, written by me and improved by Andrey Smirnov:

// <smpl>
@@
expression e;
expression e1;
@@
e = dev_request_mem_region(...);
...
-if (!e)
-	return e1;
+if (IS_ERR(e))
+	return PTR_ERR(e);

@ rule1 @
expression e;
@@
e = dev_request_mem_region(...);

@@
expression rule1.e;
identifier ret, label;
constant errno;
@@
if (!e) {
	...
(
-	ret = -errno;
+	ret = PTR_ERR(e);
	...
	goto label;
|
-	return -errno;
+	return PTR_ERR(e);
)
}

@depends on rule1@
expression rule1.e;
@@
-	if (e == NULL)
+	if (IS_ERR(e))
{
...
}
// </smpl>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>

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: dm9k: fix reset routine ...

Based on Linux's commit:

    commit 09ee9f8
    Author: Michael Abbott <michael.abbott@diamond.ac.uk>
    Date:   Wed Oct 16 11:41:33 2013 +0300

        dm9000: Implement full reset of DM9000 network device

        A Davicom application note for the DM9000 network device recommends
        performing software reset twice to correctly initialise the device.
        Without this reset some devices fail to initialise correctly on
        system startup.

N.B. DM9000B on MIPS Creator CI20 board needs additional workaround
(see the 'Make all GPIO pins outputs' and 'Power internal PHY' lines).

This workaround was taken from this U-boot's commit:

    commit fbcb7ec
    Author: Remy Bohmer <linux@bohmer.net>
    Date:   Tue Jun 3 15:26:24 2008 +0200

        DM9000: Improve eth_reset() routine

        According to the application notes of the DM9000 v1.22 chapter 5.2 bullet 2, the
        reset procedure must be done twice to properly reset the DM9000 by means of software.
        This errata is not needed anymore for the DM9000A, but it does not bother it.

        This change has been tested with DM9000A, DM9000E, DM9000EP.

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dm9k: add device tree support ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dm9k: show only one phy on miibus ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

net: dm9k: fix copy-paste typo ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/net' ...

Conflicts:
	drivers/net/dm9k.c

net: dm9k: only read on packet for each call to dm9k_eth_rx() ...

Some users such as fs/nfs.c just save the pointer to the packet in the
handler and process it after net_poll() returns. This break when more than
one packet is received using the same buffer.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
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>

net: dm9k: bail out when resources can't be claimed ...

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>

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>

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>

net dm9k: Fix compiler warning ...

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

Add support for more recent Davicom DM9k devices ...

This patch adds support for the more recent DM9000A and DM9000B types, and keeps
support for the older DM9000E device. As this patch is more or less a complete
re-wrote of the existing driver I add a new source file instead of fixing the
existing one. In a later patch the old driver will be removed.

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