sh_mdio_init() allocates pointer to 'struct bb_info' but only stores it locally,
so that sh_mdio_release() can't free it on driver unload.  Add the pointer to
'struct bb_info' to 'struct sh_eth_private', so that sh_mdio_init() can save
'bitbang' variable for sh_mdio_release() to be able to free it later...
Signed-off-by: NSergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch supports the ethtool's set_ringparam() and get_ringparam().
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch removes unnecessary members in sh_th_private.
This patch also removes unnecessary definitions in sh_eth.h
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The sh_eth_timer() called mod_timer() for itself. So, this patch
removes the function.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Ethernet IP of SH7734 and R8A7740 has selecting MII register.
The user needs to change a value according to MII to be used.
This adds the function to change the value of this register.
Signed-off-by: NNobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The R8A7740 has a Gigabit Ethernet MAC. This patch supports it.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: NKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

SuperH has the "CONFIG_CPU_LITTLE_ENDIAN" and the "__LITTLE_ENDIAN__".
But, other architecture doesn't have them. So, this patch fixes it.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add define of SH7734 register and sh_eth_reset_hw_crc function.

V3: Rebase net/HEAD.
V2: Do not split line of #if defined.
Signed-off-by: NNobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some controllers have TSU. It can register one VLAN tag, and it can
filter other VLAN tag by hardware.
If vlan_rx_add_vid() is called twice or more, the driver will disable
the filtering.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Some controllers have TSU. It can filter multicast by hardware.
This patch supports it.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

No need to maintain a parallel net_device_stats structure in
sh_eth_private, since we have a generic one in netdev

Fix two dma_map_single() incorrect parameters, passing skb->tail instead
of skb->data. Seems that there is no corresponding dmap_unmap_single()
calls for the moment in this driver.
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

When this GETHER controller received a large frame (about 1800 bytes
or more), skb_over_panic() happened. This is because the previous
driver set the RFLR to 0x1000 (4096 bytes) and the skb allocate size
is smaller than 4096 bytes. So, the controller accepted such a frame.

The controller can discard a large frame by the RFLR setting.
So, the patch modifies the value of RFLR to mtu + ETH_HLEN +
VLAN_HLEN + ETH_FCS_LEN.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch also changes writel/readl to iowrite32/ioread32.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move the Renesas driver into drivers/net/ethernet/renesas/ and make
the necessary Kconfig and Makefile changes.

CC: Yoshihiro Shimoda <yoshihiro.shirmoda.uh@renesas.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The previous code had hardcoded the PHY_INTERFACE_MODE_MII of phy_connect.
So some Gigabit PHYs will not behave correctly.
The patch adds the phy_interface in sh_eth_plat_data, so we can select
the phy interface.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The SH7763 has GETHER. So the specification of some registers differs than
other CPUs. This patch removes almost #ifdef of CONFIG_CPU_SUBTYPE_SH7763.
Then we are able to add other CPU's GETHER easily.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The defination is hardcoded in this driver for some CPUs. This patch
modifies to get resource of TSU address from platform_device.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The previous code cannot handle the ETHER and GETHER both as same time
because the definitions of register was hardcoded.
Signed-off-by: NYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

janz-ican3, sh_eth, skge and vxge don't use workqueue at all and there
is no reason to flush the system_wq.  Drop flush_scheduled_work()
calls and references to workqueue.
Signed-off-by: NTejun Heo <tj@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Ramkrishna Vepa <ramkrishna.vepa@exar.com>
Cc: Sivakumar Subramani <sivakumar.subramani@exar.com>
Cc: Sreenivasa Honnur <sreenivasa.honnur@exar.com>
Cc: Jon Mason <jon.mason@exar.com>
Cc: netdev@vger.kernel.org

Add Runtime PM support to the sh_eth driver.

The clock to the ethernet hardware block will be
enabled as long as the network device is up.
Signed-off-by: NMagnus Damm <damm@opensource.se>
Tested-by: NKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The method of ETHER_LINK pin is board dependence.
This patch adding paramters are:
 - no_ether_link          : If set to 1, do not use ETHER_LINK
 - ether_link_active_low  : If set to 1, ETHER_LINK is active low.
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: NKuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This improves readability by collecting CPU dependency code.
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Address of SH_TSU_ADDR and ARSTR of SH7763 was wrong.
This revise it.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Add support SH7619 Internal ethernet controler.
Signed-off-by: NYoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

SH7763 has Ethernet core same as SH7710/SH7712.
Positions of some registry are different, but the basic part is the same.
I add support of ethernet of sh7763 to sh_eth.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Fix compile error on sh_eth and remove base address macro.
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

Add support for Renesas SuperH Ethernet controller.  This driver supports
SH7710 and SH7712.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: NYoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: NNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>