General cleanup of the ep93xx_eth driver.

1) Use pr_fmt() to prefix the module name and __func__ to the error 
   messages.
2) <linux/io.h> instead of <asm/io.h>
3) <mach/hardware.h> instead of <mach/ep93xx-regs.h> and <mach/platform.h>
4) Move the ep93xx_mdio_read (and ep93xx_mdio_write) function to eliminate
   the function prototype.
5) Change all the printk(<level> messages to pr_<level> and remove the 
   __func__ argument.
6) Use platform_get_{resource/irq} to get the platform resources and add
   an error check.
7) Use resource_size() for request_mem_region() and ioremap().
8) Use %pM to print the MAC address at the end of the probe.
9) Use dev->dev_addr not data->dev_addr for the MAC argument because a
   random address could be used if the platform does not supply one.

The message at the end of the probe is left as a printk since it displays
cleaner without the function name that would be displayed with pr_info().
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: NLennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

If we happen to have registered the driver without passing
a MAC address, we will print a zero MAC address and register
the interface with this invalid address, this is confusin. This
patch moves the checking of a valid ethernet address and the
generation of a random one down from the open function to
the probe function.
Signed-off-by: NFlorian Fainelli <florian@openwrt.org>
Acked-by: NLennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ks8695_rx() will call refill_buffers() for every incoming packet.
Its not necessary. We just need do it after finishing receiving thing.
And the 'RX dma engine' is in the same situation.
This blocks our user space application. The following patch may fix it.
Signed-off-by: Nzeal <zealcook@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ks8695 rx irq is edge-level. Before arriving at irq handler, the
corresponding status bit has been clear(irq's ack).
So we should not check it after that.
Signed-off-by: Nzeal <zealcook@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

To fix the bug of checking on signed return value using unsigned statement.
Thanks Roel Kluin for digging out it.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

1. Add API Add k8695_get_rx_enable_bit() for get Rx interrupt
enable/status bit.
2. add some comment or document about some functions and variables.
3.  update driver version to "1.02"
4. add napi_enable() and napi_disable() in open/close file method.
Signed-off-by: NFigo.zhang <figo1802@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support NAPI Rx API for KS8695NET driver.

v2, change the Rx function to NAPI.

in <KS8695X Integrated Multi-port Gateway Solution Register Description
 v1.0>:

Interrupt Enable Register (offset 0xE204)
Bit29 : WAN MAC Receive Interrupt Enable
Bit16 : LAN MAC Receive Interrupt Enable

Interrupt Status Register (Offset 0xF208)
Bit29: WAN MAC Receive Status
Bit16: LAN MAC Receive Status

see arch/arm/mach-ks8695/devices.c:
ks8695_wan_resources[] and ks8695_lan_resources[]
have IORESOURCE_IRQ , it have define the RX irq,
for wan, irq = 29; for lan ,irq = 16.
so we can do this read the interrupt status:

unsigned long mask_bit = 1 << ksp->rx_irq;
status = readl(KS8695_IRQ_VA + KS8695_INTST);
Signed-off-by: NFigo.zhang <figo1802@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The generic packet receive code takes care of setting
netdev->last_rx when necessary, for the sake of the
bonding ARP monitor.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Acked-by: NNeil Horman <nhorman@txudriver.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

No need to put ethtool_ops in data, they should be const.
Signed-off-by: NStephen Hemminger <shemminger@vyatta.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Due to I modified the corresponding platform device name, 
so I make the patch to rename MAC platform driver
for w90p910 platform.
Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

I fixed up my mac driver, which relatives to previous
mac driver actually in the tree.
Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

at91ether_probe lives in .init.text, so using platform_driver_register
to register it is wrong because binding a device after the init memory
is discarded (e.g. via sysfs) results in an oops.

As requested by David Brownell platform_driver_probe is used instead of
moving the probe function to .devinit.text as proposed initially.
This saves some memory, but devices registered after the driver is
probed are not bound (probably there are none) and binding via sysfs
isn't possible.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Acked-by: NAndrew Victor <linux@maxim.org.za>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add mac driver support for evaluation board based on w90p910.
Signed-off-by: NWan ZongShun <mcuos.com@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

alloc_etherdev() used to install a default implementation of this
operation, but it must now be explicitly installed in struct
net_device_ops.
Signed-off-by: NBen Hutchings <ben@decadent.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

alloc_etherdev() used to install default implementations of these
operations, but they must now be explicitly installed in struct
net_device_ops.
Signed-off-by: NBen Hutchings <ben@decadent.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is the result of an automatic spatch transformation to convert
all ndo_start_xmit() return values of 0 to NETDEV_TX_OK.

Some occurences are missed by the automatic conversion, those will be
handled in a seperate patch.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively.

0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases
where its in direct proximity to one of the other values.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This replaces dma_sync_single() with dma_sync_single_for_cpu() because
dma_sync_single() is an obsolete API; include/linux/dma-mapping.h says:

/* Backwards compat, remove in 2.7.x */
#define dma_sync_single		dma_sync_single_for_cpu
#define dma_sync_sg		dma_sync_sg_for_cpu
Signed-off-by: NFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use MII_BUS_ID_SIZE instead.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

ENOSYS makes modutils complain about missing kernel module support.
Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

Fix 50+ sparse warnings in the ep93xx ethernet driver.

  warning: incorrect type in argument 1 (different address spaces)
Signed-off-by: NH Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Also make ep93xx_dev_alloc static.
Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NAlexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Cc: davem@davemloft.net
Cc: netdev@vger.kernel.org
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>

Signed-off-by: NKrzysztof Hałasa <khc@pm.waw.pl>

with while (timeout-- > 0); timeout reaches -1 after the loop, so the tests
below are off by one. also don't do an '< 0' test on an unsigned.
Signed-off-by: NRoel Kluin <roel.kluin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This reverts commit 7d3d5ec1.

Russell is going to merge this in via the ARM tree.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The 8390 driver was structured by Al Viro to allow the flexibility
required by platforms.  lib8390.c contains the core code which drivers
explicitly include:
- 8390.c includes lib8390.c to provide the standard ISA based driver.
- etherh.c includes it with the accessors defined for RiscPC platforms,
  where it is addressed via the MMIO accessors with a device dependent
  register spacing.

Other platform drivers do something similar.

However, b9a9b4b0 caused the kernel to contain not only the etherh
private build of lib8390 (included in etherh.c) but also lib8390.c
itself, and referred the new net_device_ops methods to the ISA version.
The result of this is is not pretty:

Unable to handle kernel paging request at virtual address 12032030
pgd = c8330000
[12032030] *pgd=00000000
Internal error: Oops: 18331805 [#1]
Modules linked in: ipv6
CPU: 0    Not tainted  (2.6.29-rc3 #167)
PC is at do_set_multicast_list+0xd0/0x190
LR is at bitrev32+0x28/0x34
pc : [<c017aab4>]    lr : [<c0139120>]    psr: a0000093
sp : c8321d9c  ip : c8321d84  fp : c8321dbc
r10: c80c6800  r9 : 00000000  r8 : c80c6b60
r7 : c80c6b80  r6 : cc80c800  r5 : c80c6800  r4 : 00000000
r3 : cc80c80c  r2 : 00000004  r1 : 00000007  r0 : e0000000
Flags: NzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
...

Fix up b9a9b4b0 by making etherh's net_device_ops refer to the internal
lib8390 functions, and remove the build of the ISA 8390.c driver.
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Further to a71558d0, this is round five of fixes to make etherh work
again. As mainline kernels stand, the fixes in b9a9b4b0 were the wrong
approach.

The 8390 driver was structured by Al Viro to allow the flexibility required
by platforms.  lib8390.c contains the core code which drivers explicitly
include:
- 8390.c includes lib8390.c to provide the standard ISA based driver.
- etherh.c includes it with the accessors defined for RiscPC platforms,
  where it is addressed via the MMIO accessors with a device dependent
  register spacing.

Other platform drivers do something similar.

However, b9a9b4b0 caused the kernel to contain not only the etherh private
build of lib8390 (included in etherh.c) but also lib8390.c itself, and
referred the new net_device_ops methods to the ISA version.  The result
of this is is not pretty:

Unable to handle kernel paging request at virtual address 12032030
pgd = c8330000
[12032030] *pgd=00000000
Internal error: Oops: 18331805 [#1]
Modules linked in: ipv6
CPU: 0    Not tainted  (2.6.29-rc3 #167)
PC is at do_set_multicast_list+0xd0/0x190
LR is at bitrev32+0x28/0x34
pc : [<c017aab4>]    lr : [<c0139120>]    psr: a0000093
sp : c8321d9c  ip : c8321d84  fp : c8321dbc
r10: c80c6800  r9 : 00000000  r8 : c80c6b60
r7 : c80c6b80  r6 : cc80c800  r5 : c80c6800  r4 : 00000000
r3 : cc80c80c  r2 : 00000004  r1 : 00000007  r0 : e0000000
Flags: NzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
...

Fix up b9a9b4b0 by making etherh's net_device_ops refer to the internal
lib8390 functions, and remove the build of the ISA 8390.c driver.
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Further to 483a2b3a, also fix:

drivers/net/arm/etherh.c:649: error: 'eth_set_mac_addr' undeclared here (not in a function)
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>

Signed-off-by: NKay Sievers <kay.sievers@vrfy.org>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>