[lantiq] update 3.2 patches

sync with lantiq kernel series

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31260 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 1470 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-3.2/0042-NET-adds-driver-for-lantiq-vr9-ethernet.patch b/target/linux/lantiq/patches-3.2/0042-NET-adds-driver-for-lantiq-vr9-ethernet.patch
new file mode 100644
index 0000000000..3a0cd0f67d
--- /dev/null
+++ b/target/linux/lantiq/patches-3.2/0042-NET-adds-driver-for-lantiq-vr9-ethernet.patch
@@ -0,0 +1,1470 @@
+From 29be0a0cb78942568ea4dc164a86da1bcf7b3ad6 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Fri, 9 Mar 2012 19:03:40 +0100
+Subject: [PATCH 42/73] NET: adds driver for lantiq vr9 ethernet
+
+---
+ .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h |    2 +-
+ arch/mips/lantiq/xway/devices.c                    |   20 +
+ arch/mips/lantiq/xway/devices.h                    |    1 +
+ drivers/net/ethernet/Kconfig                       |    6 +
+ drivers/net/ethernet/Makefile                      |    1 +
+ drivers/net/ethernet/lantiq_vrx200.c               | 1358 ++++++++++++++++++++
+ 6 files changed, 1387 insertions(+), 1 deletions(-)
+ create mode 100644 drivers/net/ethernet/lantiq_vrx200.c
+
+diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
+index ab2d236..d1b8cc8 100644
+--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
++++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
+@@ -102,7 +102,7 @@
+ 
+ /* GBIT - gigabit switch */
+ #define LTQ_GBIT_BASE_ADDR	0x1E108000
+-#define LTQ_GBIT_SIZE		0x200
++#define LTQ_GBIT_SIZE		0x4000
+ 
+ /* DMA */
+ #define LTQ_DMA_BASE_ADDR	0x1E104100
+diff --git a/arch/mips/lantiq/xway/devices.c b/arch/mips/lantiq/xway/devices.c
+index eab4644d..5efa4f3 100644
+--- a/arch/mips/lantiq/xway/devices.c
++++ b/arch/mips/lantiq/xway/devices.c
+@@ -83,6 +83,7 @@ static struct platform_device ltq_etop = {
+ 	.name		= "ltq_etop",
+ 	.resource	= ltq_etop_resources,
+ 	.num_resources	= 1,
++	.id		= -1,
+ };
+ 
+ void __init
+@@ -96,3 +97,22 @@ ltq_register_etop(struct ltq_eth_data *eth)
+ 		platform_device_register(&ltq_etop);
+ 	}
+ }
++
++/* ethernet */
++static struct resource ltq_vrx200_resources[] = {
++	MEM_RES("gbit", LTQ_GBIT_BASE_ADDR, LTQ_GBIT_SIZE),
++};
++
++static struct platform_device ltq_vrx200 = {
++	.name		= "ltq_vrx200",
++	.resource	= ltq_vrx200_resources,
++	.num_resources	= 1,
++	.id = -1,
++};
++
++void __init
++ltq_register_vrx200(struct ltq_eth_data *eth)
++{
++	ltq_vrx200.dev.platform_data = eth;
++	platform_device_register(&ltq_vrx200);
++}
+diff --git a/arch/mips/lantiq/xway/devices.h b/arch/mips/lantiq/xway/devices.h
+index d825cbd..08befd9 100644
+--- a/arch/mips/lantiq/xway/devices.h
++++ b/arch/mips/lantiq/xway/devices.h
+@@ -17,5 +17,6 @@ extern void ltq_register_gpio_stp(void);
+ extern void ltq_register_ase_asc(void);
+ extern void ltq_register_etop(struct ltq_eth_data *eth);
+ extern void xway_register_nand(struct mtd_partition *parts, int count);
++extern void ltq_register_vrx200(struct ltq_eth_data *eth);
+ 
+ #endif
+diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
+index 597f4d4..2035cab 100644
+--- a/drivers/net/ethernet/Kconfig
++++ b/drivers/net/ethernet/Kconfig
+@@ -84,6 +84,12 @@ config LANTIQ_ETOP
+ 	---help---
+ 	  Support for the MII0 inside the Lantiq SoC
+ 
++config LANTIQ_VRX200
++	tristate "Lantiq SoC vrx200 driver"
++	depends on SOC_TYPE_XWAY
++	---help---
++	  Support for the MII0 inside the Lantiq SoC
++
+ source "drivers/net/ethernet/marvell/Kconfig"
+ source "drivers/net/ethernet/mellanox/Kconfig"
+ source "drivers/net/ethernet/micrel/Kconfig"
+diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
+index be5dde0..4fde2be 100644
+--- a/drivers/net/ethernet/Makefile
++++ b/drivers/net/ethernet/Makefile
+@@ -35,6 +35,7 @@ obj-$(CONFIG_IP1000) += icplus/
+ obj-$(CONFIG_JME) += jme.o
+ obj-$(CONFIG_KORINA) += korina.o
+ obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o
++obj-$(CONFIG_LANTIQ_VRX200) += lantiq_vrx200.o
+ obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/
+ obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
+ obj-$(CONFIG_NET_VENDOR_MICREL) += micrel/
+diff --git a/drivers/net/ethernet/lantiq_vrx200.c b/drivers/net/ethernet/lantiq_vrx200.c
+new file mode 100644
+index 0000000..d79d380
+--- /dev/null
++++ b/drivers/net/ethernet/lantiq_vrx200.c
+@@ -0,0 +1,1358 @@
++/*
++ *   This program is free software; you can redistribute it and/or modify it
++ *   under the terms of the GNU General Public License version 2 as published
++ *   by the Free Software Foundation.
++ *
++ *   This program is distributed in the hope that it will be useful,
++ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
++ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ *   GNU General Public License for more details.
++ *
++ *   You should have received a copy of the GNU General Public License
++ *   along with this program; if not, write to the Free Software
++ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
++ *
++ *   Copyright (C) 2011 John Crispin <blogic@openwrt.org>
++ */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/errno.h>
++#include <linux/types.h>
++#include <linux/interrupt.h>
++#include <linux/uaccess.h>
++#include <linux/in.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/phy.h>
++#include <linux/ip.h>
++#include <linux/tcp.h>
++#include <linux/skbuff.h>
++#include <linux/mm.h>
++#include <linux/platform_device.h>
++#include <linux/ethtool.h>
++#include <linux/init.h>
++#include <linux/delay.h>
++#include <linux/io.h>
++#include <linux/dma-mapping.h>
++#include <linux/module.h>
++#include <linux/clk.h>
++
++#include <asm/checksum.h>
++
++#include <lantiq_soc.h>
++#include <xway_dma.h>
++#include <lantiq_platform.h>
++
++#define LTQ_SWITCH_BASE                 0x1E108000
++#define LTQ_SWITCH_CORE_BASE            LTQ_SWITCH_BASE
++#define LTQ_SWITCH_TOP_PDI_BASE         LTQ_SWITCH_CORE_BASE
++#define LTQ_SWITCH_BM_PDI_BASE          (LTQ_SWITCH_CORE_BASE + 4 * 0x40)
++#define LTQ_SWITCH_MAC_PDI_0_BASE       (LTQ_SWITCH_CORE_BASE + 4 * 0x900)
++#define LTQ_SWITCH_MAC_PDI_X_BASE(x)    (LTQ_SWITCH_MAC_PDI_0_BASE + x * 0x30)
++#define LTQ_SWITCH_TOPLEVEL_BASE        (LTQ_SWITCH_BASE + 4 * 0xC40)
++#define LTQ_SWITCH_MDIO_PDI_BASE        (LTQ_SWITCH_TOPLEVEL_BASE)
++#define LTQ_SWITCH_MII_PDI_BASE         (LTQ_SWITCH_TOPLEVEL_BASE + 4 * 0x36)
++#define LTQ_SWITCH_PMAC_PDI_BASE        (LTQ_SWITCH_TOPLEVEL_BASE + 4 * 0x82)
++
++#define LTQ_ETHSW_MAC_CTRL0_PADEN               (1 << 8)
++#define LTQ_ETHSW_MAC_CTRL0_FCS                 (1 << 7)
++#define LTQ_ETHSW_MAC_CTRL1_SHORTPRE            (1 << 8)
++#define LTQ_ETHSW_MAC_CTRL2_MLEN                (1 << 3)
++#define LTQ_ETHSW_MAC_CTRL2_LCHKL               (1 << 2)
++#define LTQ_ETHSW_MAC_CTRL2_LCHKS_DIS           0
++#define LTQ_ETHSW_MAC_CTRL2_LCHKS_UNTAG         1
++#define LTQ_ETHSW_MAC_CTRL2_LCHKS_TAG           2
++#define LTQ_ETHSW_MAC_CTRL6_RBUF_DLY_WP_SHIFT   9
++#define LTQ_ETHSW_MAC_CTRL6_RXBUF_BYPASS        (1 << 6)
++#define LTQ_ETHSW_GLOB_CTRL_SE                  (1 << 15)
++#define LTQ_ETHSW_MDC_CFG1_MCEN                 (1 << 8)
++#define LTQ_ETHSW_PMAC_HD_CTL_FC                (1 << 10)
++#define LTQ_ETHSW_PMAC_HD_CTL_RC                (1 << 4)
++#define LTQ_ETHSW_PMAC_HD_CTL_AC                (1 << 2)
++#define ADVERTIZE_MPD          (1 << 10)
++
++#define MDIO_DEVAD_NONE                    (-1)
++
++#define LTQ_ETH_RX_BUFFER_CNT           PKTBUFSRX
++
++#define LTQ_MDIO_DRV_NAME               "ltq-mdio"
++#define LTQ_ETH_DRV_NAME                "ltq-eth"
++
++#define LTQ_ETHSW_MAX_GMAC              1
++#define LTQ_ETHSW_PMAC                  1
++
++#define ltq_setbits(a, set) \
++        ltq_w32(ltq_r32(a) | (set), a)
++
++enum ltq_reset_modules {
++	LTQ_RESET_CORE,
++	LTQ_RESET_DMA,
++	LTQ_RESET_ETH,
++	LTQ_RESET_PHY,
++	LTQ_RESET_HARD,
++	LTQ_RESET_SOFT,
++};
++
++static inline void
++dbg_ltq_writel(void *a, unsigned int b)
++{
++	ltq_w32(b, a);
++}
++
++int ltq_reset_once(enum ltq_reset_modules module, ulong usec);
++
++struct ltq_ethsw_mac_pdi_x_regs {
++	u32     pstat;          /* Port status */
++	u32     pisr;           /* Interrupt status */
++	u32     pier;           /* Interrupt enable */
++	u32     ctrl_0;         /* Control 0 */
++	u32     ctrl_1;         /* Control 1 */
++	u32     ctrl_2;         /* Control 2 */
++	u32     ctrl_3;         /* Control 3 */
++	u32     ctrl_4;         /* Control 4 */
++	u32     ctrl_5;         /* Control 5 */
++	u32     ctrl_6;         /* Control 6 */
++	u32     bufst;          /* TX/RX buffer control */
++	u32     testen;         /* Test enable */
++};
++
++struct ltq_ethsw_mac_pdi_regs {
++	struct ltq_ethsw_mac_pdi_x_regs mac[12];
++};
++
++struct ltq_ethsw_mdio_pdi_regs {
++	u32     glob_ctrl;      /* Global control 0 */
++	u32     rsvd0[7];
++	u32     mdio_ctrl;      /* MDIO control */
++	u32     mdio_read;      /* MDIO read data */
++	u32     mdio_write;     /* MDIO write data */
++	u32     mdc_cfg_0;      /* MDC clock configuration 0 */
++	u32     mdc_cfg_1;      /* MDC clock configuration 1 */
++	u32     rsvd[3];
++	u32     phy_addr_5;     /* PHY address port 5 */
++	u32     phy_addr_4;     /* PHY address port 4 */
++	u32     phy_addr_3;     /* PHY address port 3 */
++	u32     phy_addr_2;     /* PHY address port 2 */
++	u32     phy_addr_1;     /* PHY address port 1 */
++	u32     phy_addr_0;     /* PHY address port 0 */
++	u32     mdio_stat_0;    /* MDIO PHY polling status port 0 */
++	u32     mdio_stat_1;    /* MDIO PHY polling status port 1 */
++	u32     mdio_stat_2;    /* MDIO PHY polling status port 2 */
++	u32     mdio_stat_3;    /* MDIO PHY polling status port 3 */
++	u32     mdio_stat_4;    /* MDIO PHY polling status port 4 */
++	u32     mdio_stat_5;    /* MDIO PHY polling status port 5 */
++};
++
++struct ltq_ethsw_mii_pdi_regs {
++	u32     mii_cfg0;       /* xMII port 0 configuration */
++	u32     pcdu0;          /* Port 0 clock delay configuration */
++	u32     mii_cfg1;       /* xMII port 1 configuration */
++	u32     pcdu1;          /* Port 1 clock delay configuration */
++	u32     mii_cfg2;       /* xMII port 2 configuration */
++	u32     rsvd0;
++	u32     mii_cfg3;       /* xMII port 3 configuration */
++	u32     rsvd1;
++	u32     mii_cfg4;       /* xMII port 4 configuration */
++	u32     rsvd2;
++	u32     mii_cfg5;       /* xMII port 5 configuration */
++	u32     pcdu5;          /* Port 5 clock delay configuration */
++};
++
++struct ltq_ethsw_pmac_pdi_regs {
++	u32     hd_ctl;         /* PMAC header control */
++	u32     tl;             /* PMAC type/length */
++	u32     sa1;            /* PMAC source address 1 */
++	u32     sa2;            /* PMAC source address 2 */
++	u32     sa3;            /* PMAC source address 3 */
++	u32     da1;            /* PMAC destination address 1 */
++	u32     da2;            /* PMAC destination address 2 */
++	u32     da3;            /* PMAC destination address 3 */
++	u32     vlan;           /* PMAC VLAN */
++	u32     rx_ipg;         /* PMAC interpacket gap in RX direction */
++	u32     st_etype;       /* PMAC special tag ethertype */
++	u32     ewan;           /* PMAC ethernet WAN group */
++};
++
++struct ltq_mdio_phy_addr_reg {
++	union {
++		struct {
++			unsigned rsvd:1;
++			unsigned lnkst:2;       /* Link status control */
++			unsigned speed:2;       /* Speed control */
++			unsigned fdup:2;        /* Full duplex control */
++			unsigned fcontx:2;      /* Flow control mode TX */
++			unsigned fconrx:2;      /* Flow control mode RX */
++			unsigned addr:5;        /* PHY address */
++		} bits;
++		u16 val;
++	};
++};
++
++enum ltq_mdio_phy_addr_lnkst {
++	LTQ_MDIO_PHY_ADDR_LNKST_AUTO = 0,
++	LTQ_MDIO_PHY_ADDR_LNKST_UP = 1,
++	LTQ_MDIO_PHY_ADDR_LNKST_DOWN = 2,
++};
++
++enum ltq_mdio_phy_addr_speed {
++	LTQ_MDIO_PHY_ADDR_SPEED_M10 = 0,
++	LTQ_MDIO_PHY_ADDR_SPEED_M100 = 1,
++	LTQ_MDIO_PHY_ADDR_SPEED_G1 = 2,
++	LTQ_MDIO_PHY_ADDR_SPEED_AUTO = 3,
++};
++
++enum ltq_mdio_phy_addr_fdup {
++	LTQ_MDIO_PHY_ADDR_FDUP_AUTO = 0,
++	LTQ_MDIO_PHY_ADDR_FDUP_ENABLE = 1,
++	LTQ_MDIO_PHY_ADDR_FDUP_DISABLE = 3,
++};
++
++enum ltq_mdio_phy_addr_fcon {
++	LTQ_MDIO_PHY_ADDR_FCON_AUTO = 0,
++	LTQ_MDIO_PHY_ADDR_FCON_ENABLE = 1,
++	LTQ_MDIO_PHY_ADDR_FCON_DISABLE = 3,
++};
++
++struct ltq_mii_mii_cfg_reg {
++	union {
++		struct {
++			unsigned res:1;         /* Hardware reset */
++			unsigned en:1;          /* xMII interface enable */
++			unsigned isol:1;        /* xMII interface isolate */
++			unsigned ldclkdis:1;    /* Link down clock disable */
++			unsigned rsvd:1;
++			unsigned crs:2;         /* CRS sensitivity config */
++			unsigned rgmii_ibs:1;   /* RGMII In Band status */
++			unsigned rmii:1;        /* RMII ref clock direction */
++			unsigned miirate:3;     /* xMII interface clock rate */
++			unsigned miimode:4;     /* xMII interface mode */
++		} bits;
++		u16 val;
++	};
++};
++
++enum ltq_mii_mii_cfg_miirate {
++	LTQ_MII_MII_CFG_MIIRATE_M2P5 = 0,
++	LTQ_MII_MII_CFG_MIIRATE_M25 = 1,
++	LTQ_MII_MII_CFG_MIIRATE_M125 = 2,
++	LTQ_MII_MII_CFG_MIIRATE_M50 = 3,
++	LTQ_MII_MII_CFG_MIIRATE_AUTO = 4,
++};
++
++enum ltq_mii_mii_cfg_miimode {
++	LTQ_MII_MII_CFG_MIIMODE_MIIP = 0,
++	LTQ_MII_MII_CFG_MIIMODE_MIIM = 1,
++	LTQ_MII_MII_CFG_MIIMODE_RMIIP = 2,
++	LTQ_MII_MII_CFG_MIIMODE_RMIIM = 3,
++	LTQ_MII_MII_CFG_MIIMODE_RGMII = 4,
++};
++
++struct ltq_eth_priv {
++	struct ltq_dma_device *dma_dev;
++	struct mii_dev *bus;
++	struct eth_device *dev;
++	struct phy_device *phymap[LTQ_ETHSW_MAX_GMAC];
++	int rx_num;
++};
++
++enum ltq_mdio_mbusy {
++	LTQ_MDIO_MBUSY_IDLE = 0,
++	LTQ_MDIO_MBUSY_BUSY = 1,
++};
++
++enum ltq_mdio_op {
++	LTQ_MDIO_OP_WRITE = 1,
++	LTQ_MDIO_OP_READ = 2,
++};
++
++struct ltq_mdio_access {
++	union {
++		struct {
++			unsigned rsvd:3;
++			unsigned mbusy:1;
++			unsigned op:2;
++			unsigned phyad:5;
++			unsigned regad:5;
++		} bits;
++		u16 val;
++	};
++};
++
++enum LTQ_ETH_PORT_FLAGS {
++	LTQ_ETH_PORT_NONE       = 0,
++	LTQ_ETH_PORT_PHY        = 1,
++	LTQ_ETH_PORT_SWITCH     = (1 << 1),
++	LTQ_ETH_PORT_MAC        = (1 << 2),
++};
++
++struct ltq_eth_port_config {
++	u8 num;
++	u8 phy_addr;
++	u16 flags;
++	phy_interface_t phy_if;
++};
++
++struct ltq_eth_board_config {
++	const struct ltq_eth_port_config *ports;
++	int num_ports;
++};
++
++static const struct ltq_eth_port_config eth_port_config[] = {
++	/* GMAC0: external Lantiq PEF7071 10/100/1000 PHY for LAN port 0 */
++	{ 0, 0x0, LTQ_ETH_PORT_PHY, PHY_INTERFACE_MODE_RGMII },
++	/* GMAC1: external Lantiq PEF7071 10/100/1000 PHY for LAN port 1 */
++	{ 1, 0x1, LTQ_ETH_PORT_PHY, PHY_INTERFACE_MODE_RGMII },
++};
++
++static const struct ltq_eth_board_config board_config = {
++	.ports = eth_port_config,
++	.num_ports = ARRAY_SIZE(eth_port_config),
++};
++
++static struct ltq_ethsw_mac_pdi_regs *ltq_ethsw_mac_pdi_regs =
++	(struct ltq_ethsw_mac_pdi_regs *) CKSEG1ADDR(LTQ_SWITCH_MAC_PDI_0_BASE);
++
++static struct ltq_ethsw_mdio_pdi_regs *ltq_ethsw_mdio_pdi_regs =
++	(struct ltq_ethsw_mdio_pdi_regs *) CKSEG1ADDR(LTQ_SWITCH_MDIO_PDI_BASE);
++
++static struct ltq_ethsw_mii_pdi_regs *ltq_ethsw_mii_pdi_regs =
++	(struct ltq_ethsw_mii_pdi_regs *) CKSEG1ADDR(LTQ_SWITCH_MII_PDI_BASE);
++
++static struct ltq_ethsw_pmac_pdi_regs *ltq_ethsw_pmac_pdi_regs =
++	(struct ltq_ethsw_pmac_pdi_regs *) CKSEG1ADDR(LTQ_SWITCH_PMAC_PDI_BASE);
++
++
++#define MAX_DMA_CHAN		0x8
++#define MAX_DMA_CRC_LEN		0x4
++#define MAX_DMA_DATA_LEN	0x600
++
++/* use 2 static channels for TX/RX
++   depending on the SoC we need to use different DMA channels for ethernet */
++#define LTQ_ETOP_TX_CHANNEL	1
++#define LTQ_ETOP_RX_CHANNEL	0
++
++#define IS_TX(x)		(x == LTQ_ETOP_TX_CHANNEL)
++#define IS_RX(x)		(x == LTQ_ETOP_RX_CHANNEL)
++
++#define DRV_VERSION	"1.0"
++
++static void __iomem *ltq_vrx200_membase;
++
++struct ltq_vrx200_chan {
++	int idx;
++	int tx_free;
++	struct net_device *netdev;
++	struct napi_struct napi;
++	struct ltq_dma_channel dma;
++	struct sk_buff *skb[LTQ_DESC_NUM];
++};
++
++struct ltq_vrx200_priv {
++	struct net_device *netdev;
++	struct ltq_eth_data *pldata;
++	struct resource *res;
++
++	struct mii_bus *mii_bus;
++	struct phy_device *phydev;
++
++	struct ltq_vrx200_chan ch[MAX_DMA_CHAN];
++	int tx_free[MAX_DMA_CHAN >> 1];
++
++	spinlock_t lock;
++
++	struct clk *clk_ppe;
++};
++
++static int ltq_vrx200_mdio_wr(struct mii_bus *bus, int phy_addr,
++				int phy_reg, u16 phy_data);
++
++static int
++ltq_vrx200_alloc_skb(struct ltq_vrx200_chan *ch)
++{
++	ch->skb[ch->dma.desc] = dev_alloc_skb(MAX_DMA_DATA_LEN);
++	if (!ch->skb[ch->dma.desc])
++		return -ENOMEM;
++	ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL,
++		ch->skb[ch->dma.desc]->data, MAX_DMA_DATA_LEN,
++		DMA_FROM_DEVICE);
++	ch->dma.desc_base[ch->dma.desc].addr =
++		CPHYSADDR(ch->skb[ch->dma.desc]->data);
++	ch->dma.desc_base[ch->dma.desc].ctl =
++		LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) |
++		MAX_DMA_DATA_LEN;
++	skb_reserve(ch->skb[ch->dma.desc], NET_IP_ALIGN);
++	return 0;
++}
++
++static void
++ltq_vrx200_hw_receive(struct ltq_vrx200_chan *ch)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(ch->netdev);
++	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
++	struct sk_buff *skb = ch->skb[ch->dma.desc];
++	int len = (desc->ctl & LTQ_DMA_SIZE_MASK) - MAX_DMA_CRC_LEN;
++	unsigned long flags;
++
++	spin_lock_irqsave(&priv->lock, flags);
++	if (ltq_vrx200_alloc_skb(ch)) {
++		netdev_err(ch->netdev,
++			"failed to allocate new rx buffer, stopping DMA\n");
++		ltq_dma_close(&ch->dma);
++	}
++	ch->dma.desc++;
++	ch->dma.desc %= LTQ_DESC_NUM;
++	spin_unlock_irqrestore(&priv->lock, flags);
++
++	skb_put(skb, len);
++	skb->dev = ch->netdev;
++	skb->protocol = eth_type_trans(skb, ch->netdev);
++	netif_receive_skb(skb);
++}
++
++static int
++ltq_vrx200_poll_rx(struct napi_struct *napi, int budget)
++{
++	struct ltq_vrx200_chan *ch = container_of(napi,
++				struct ltq_vrx200_chan, napi);
++	struct ltq_vrx200_priv *priv = netdev_priv(ch->netdev);
++	int rx = 0;
++	int complete = 0;
++	unsigned long flags;
++
++	while ((rx < budget) && !complete) {
++		struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
++
++		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) {
++			ltq_vrx200_hw_receive(ch);
++			rx++;
++		} else {
++			complete = 1;
++		}
++	}
++	if (complete || !rx) {
++		napi_complete(&ch->napi);
++		spin_lock_irqsave(&priv->lock, flags);
++		ltq_dma_ack_irq(&ch->dma);
++		spin_unlock_irqrestore(&priv->lock, flags);
++	}
++	return rx;
++}
++
++static int
++ltq_vrx200_poll_tx(struct napi_struct *napi, int budget)
++{
++	struct ltq_vrx200_chan *ch =
++		container_of(napi, struct ltq_vrx200_chan, napi);
++	struct ltq_vrx200_priv *priv = netdev_priv(ch->netdev);
++	struct netdev_queue *txq =
++		netdev_get_tx_queue(ch->netdev, ch->idx >> 1);
++	unsigned long flags;
++
++	spin_lock_irqsave(&priv->lock, flags);
++	while ((ch->dma.desc_base[ch->tx_free].ctl &
++			(LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) {
++		dev_kfree_skb_any(ch->skb[ch->tx_free]);
++		ch->skb[ch->tx_free] = NULL;
++		memset(&ch->dma.desc_base[ch->tx_free], 0,
++			sizeof(struct ltq_dma_desc));
++		ch->tx_free++;
++		ch->tx_free %= LTQ_DESC_NUM;
++	}
++	spin_unlock_irqrestore(&priv->lock, flags);
++
++	if (netif_tx_queue_stopped(txq))
++		netif_tx_start_queue(txq);
++	napi_complete(&ch->napi);
++	spin_lock_irqsave(&priv->lock, flags);
++	ltq_dma_ack_irq(&ch->dma);
++	spin_unlock_irqrestore(&priv->lock, flags);
++	return 1;
++}
++
++static irqreturn_t
++ltq_vrx200_dma_irq(int irq, void *_priv)
++{
++	struct ltq_vrx200_priv *priv = _priv;
++	int ch = irq - LTQ_DMA_ETOP;
++
++	napi_schedule(&priv->ch[ch].napi);
++	return IRQ_HANDLED;
++}
++
++static void
++ltq_vrx200_free_channel(struct net_device *dev, struct ltq_vrx200_chan *ch)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++
++	ltq_dma_free(&ch->dma);
++	if (ch->dma.irq)
++		free_irq(ch->dma.irq, priv);
++	if (IS_RX(ch->idx)) {
++		int desc;
++		for (desc = 0; desc < LTQ_DESC_NUM; desc++)
++			dev_kfree_skb_any(ch->skb[ch->dma.desc]);
++	}
++}
++
++static void
++ltq_vrx200_hw_exit(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	int i;
++
++	clk_disable(priv->clk_ppe);
++
++	for (i = 0; i < MAX_DMA_CHAN; i++)
++		if (IS_TX(i) || IS_RX(i))
++			ltq_vrx200_free_channel(dev, &priv->ch[i]);
++}
++
++static void *ltq_eth_phy_addr_reg(int num)
++{
++	switch (num) {
++	case 0:
++		return &ltq_ethsw_mdio_pdi_regs->phy_addr_0;
++	case 1:
++		return &ltq_ethsw_mdio_pdi_regs->phy_addr_1;
++	case 2:
++		return &ltq_ethsw_mdio_pdi_regs->phy_addr_2;
++	case 3:
++		return &ltq_ethsw_mdio_pdi_regs->phy_addr_3;
++	case 4:
++		return &ltq_ethsw_mdio_pdi_regs->phy_addr_4;
++	case 5:
++		return &ltq_ethsw_mdio_pdi_regs->phy_addr_5;
++	}
++
++	return NULL;
++}
++
++static void *ltq_eth_mii_cfg_reg(int num)
++{
++	switch (num) {
++	case 0:
++		return &ltq_ethsw_mii_pdi_regs->mii_cfg0;
++	case 1:
++		return &ltq_ethsw_mii_pdi_regs->mii_cfg1;
++	case 2:
++		return &ltq_ethsw_mii_pdi_regs->mii_cfg2;
++	case 3:
++		return &ltq_ethsw_mii_pdi_regs->mii_cfg3;
++	case 4:
++		return &ltq_ethsw_mii_pdi_regs->mii_cfg4;
++	case 5:
++		return &ltq_ethsw_mii_pdi_regs->mii_cfg5;
++	}
++
++	return NULL;
++}
++
++static void ltq_eth_gmac_update(struct phy_device *phydev, int num)
++{
++	struct ltq_mdio_phy_addr_reg phy_addr_reg;
++	struct ltq_mii_mii_cfg_reg mii_cfg_reg;
++	void *phy_addr = ltq_eth_phy_addr_reg(num);
++	void *mii_cfg = ltq_eth_mii_cfg_reg(num);
++
++	phy_addr_reg.val = ltq_r32(phy_addr);
++	mii_cfg_reg.val = ltq_r32(mii_cfg);
++
++	phy_addr_reg.bits.addr = phydev->addr;
++
++	if (phydev->link)
++		phy_addr_reg.bits.lnkst = LTQ_MDIO_PHY_ADDR_LNKST_UP;
++	else
++		phy_addr_reg.bits.lnkst = LTQ_MDIO_PHY_ADDR_LNKST_DOWN;
++
++	switch (phydev->speed) {
++	case SPEED_1000:
++		phy_addr_reg.bits.speed = LTQ_MDIO_PHY_ADDR_SPEED_G1;
++		mii_cfg_reg.bits.miirate = LTQ_MII_MII_CFG_MIIRATE_M125;
++		break;
++	case SPEED_100:
++		phy_addr_reg.bits.speed = LTQ_MDIO_PHY_ADDR_SPEED_M100;
++		switch (mii_cfg_reg.bits.miimode) {
++		case LTQ_MII_MII_CFG_MIIMODE_RMIIM:
++		case LTQ_MII_MII_CFG_MIIMODE_RMIIP:
++			mii_cfg_reg.bits.miirate = LTQ_MII_MII_CFG_MIIRATE_M50;
++			break;
++		default:
++			mii_cfg_reg.bits.miirate = LTQ_MII_MII_CFG_MIIRATE_M25;
++			break;
++		}
++		break;
++	default:
++		phy_addr_reg.bits.speed = LTQ_MDIO_PHY_ADDR_SPEED_M10;
++		mii_cfg_reg.bits.miirate = LTQ_MII_MII_CFG_MIIRATE_M2P5;
++		break;
++	}
++
++	if (phydev->duplex == DUPLEX_FULL)
++		phy_addr_reg.bits.fdup = LTQ_MDIO_PHY_ADDR_FDUP_ENABLE;
++	else
++		phy_addr_reg.bits.fdup = LTQ_MDIO_PHY_ADDR_FDUP_DISABLE;
++
++	dbg_ltq_writel(phy_addr, phy_addr_reg.val);
++	dbg_ltq_writel(mii_cfg, mii_cfg_reg.val);
++	udelay(1);
++}
++
++
++static void ltq_eth_port_config(struct ltq_vrx200_priv *priv,
++	const struct ltq_eth_port_config *port)
++{
++	struct ltq_mii_mii_cfg_reg mii_cfg_reg;
++	void *mii_cfg = ltq_eth_mii_cfg_reg(port->num);
++	int setup_gpio = 0;
++
++	mii_cfg_reg.val = ltq_r32(mii_cfg);
++
++
++	switch (port->num) {
++	case 0: /* xMII0 */
++	case 1: /* xMII1 */
++		switch (port->phy_if) {
++		case PHY_INTERFACE_MODE_MII:
++			if (port->flags & LTQ_ETH_PORT_PHY)
++				/* MII MAC mode, connected to external PHY */
++				mii_cfg_reg.bits.miimode =
++					LTQ_MII_MII_CFG_MIIMODE_MIIM;
++			else
++				/* MII PHY mode, connected to external MAC */
++				mii_cfg_reg.bits.miimode =
++					LTQ_MII_MII_CFG_MIIMODE_MIIP;
++				setup_gpio = 1;
++			break;
++		case PHY_INTERFACE_MODE_RMII:
++			if (port->flags & LTQ_ETH_PORT_PHY)
++				/* RMII MAC mode, connected to external PHY */
++				mii_cfg_reg.bits.miimode =
++					LTQ_MII_MII_CFG_MIIMODE_RMIIM;
++			else
++				/* RMII PHY mode, connected to external MAC */
++				mii_cfg_reg.bits.miimode =
++					LTQ_MII_MII_CFG_MIIMODE_RMIIP;
++				setup_gpio = 1;
++				break;
++		case PHY_INTERFACE_MODE_RGMII:
++			/* RGMII MAC mode, connected to external PHY */
++			mii_cfg_reg.bits.miimode =
++				LTQ_MII_MII_CFG_MIIMODE_RGMII;
++			setup_gpio = 1;
++			break;
++		default:
++			break;
++		}
++		break;
++	case 2: /* internal GPHY0 */
++	case 3: /* internal GPHY0 */
++	case 4: /* internal GPHY1 */
++		switch (port->phy_if) {
++			case PHY_INTERFACE_MODE_MII:
++			case PHY_INTERFACE_MODE_GMII:
++				/* MII MAC mode, connected to internal GPHY */
++				mii_cfg_reg.bits.miimode =
++					LTQ_MII_MII_CFG_MIIMODE_MIIM;
++				setup_gpio = 1;
++				break;
++			default:
++				break;
++		}
++		break;
++	case 5: /* internal GPHY1 or xMII2 */
++		switch (port->phy_if) {
++		case PHY_INTERFACE_MODE_MII:
++			/* MII MAC mode, connected to internal GPHY */
++			mii_cfg_reg.bits.miimode =
++				LTQ_MII_MII_CFG_MIIMODE_MIIM;
++			setup_gpio = 1;
++			break;
++		case PHY_INTERFACE_MODE_RGMII:
++			/* RGMII MAC mode, connected to external PHY */
++			mii_cfg_reg.bits.miimode =
++				LTQ_MII_MII_CFG_MIIMODE_RGMII;
++			setup_gpio = 1;
++			break;
++		default:
++			break;
++		}
++		break;
++	default:
++		break;
++	}
++
++	/* Enable MII interface */
++	mii_cfg_reg.bits.en = port->flags ? 1 : 0;
++	dbg_ltq_writel(mii_cfg, mii_cfg_reg.val);
++
++}
++
++static void ltq_eth_gmac_init(int num)
++{
++	struct ltq_mdio_phy_addr_reg phy_addr_reg;
++	struct ltq_mii_mii_cfg_reg mii_cfg_reg;
++	void *phy_addr = ltq_eth_phy_addr_reg(num);
++	void *mii_cfg = ltq_eth_mii_cfg_reg(num);
++	struct ltq_ethsw_mac_pdi_x_regs *mac_pdi_regs;
++
++	mac_pdi_regs = &ltq_ethsw_mac_pdi_regs->mac[num];
++
++	/* Reset PHY status to link down */
++	phy_addr_reg.val = ltq_r32(phy_addr);
++	phy_addr_reg.bits.addr = num;
++	phy_addr_reg.bits.lnkst = LTQ_MDIO_PHY_ADDR_LNKST_DOWN;
++	phy_addr_reg.bits.speed = LTQ_MDIO_PHY_ADDR_SPEED_M10;
++	phy_addr_reg.bits.fdup = LTQ_MDIO_PHY_ADDR_FDUP_DISABLE;
++	dbg_ltq_writel(phy_addr, phy_addr_reg.val);
++
++	/* Reset and disable MII interface */
++	mii_cfg_reg.val = ltq_r32(mii_cfg);
++	mii_cfg_reg.bits.en = 0;
++	mii_cfg_reg.bits.res = 1;
++	mii_cfg_reg.bits.miirate = LTQ_MII_MII_CFG_MIIRATE_M2P5;
++	dbg_ltq_writel(mii_cfg, mii_cfg_reg.val);
++
++	/*
++	* Enable padding of short frames, enable frame checksum generation
++	* in transmit direction
++	*/
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_0, LTQ_ETHSW_MAC_CTRL0_PADEN |
++		LTQ_ETHSW_MAC_CTRL0_FCS);
++
++	/* Set inter packet gap size to 12 bytes */
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_1, 12);
++
++	/*
++	* Configure frame length checks:
++	* - allow jumbo frames
++	* - enable long length check
++	* - enable short length without VLAN tags
++	*/
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_2, LTQ_ETHSW_MAC_CTRL2_MLEN |
++		LTQ_ETHSW_MAC_CTRL2_LCHKL |
++		LTQ_ETHSW_MAC_CTRL2_LCHKS_UNTAG);
++}
++
++
++static void ltq_eth_pmac_init(void)
++{
++	struct ltq_ethsw_mac_pdi_x_regs *mac_pdi_regs;
++
++	mac_pdi_regs = &ltq_ethsw_mac_pdi_regs->mac[LTQ_ETHSW_PMAC];
++
++	/*
++	* Enable padding of short frames, enable frame checksum generation
++	* in transmit direction
++	*/
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_0, LTQ_ETHSW_MAC_CTRL0_PADEN |
++		LTQ_ETHSW_MAC_CTRL0_FCS);
++
++	/*
++	* Configure frame length checks:
++	* - allow jumbo frames
++	* - enable long length check
++	* - enable short length without VLAN tags
++	*/
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_2, LTQ_ETHSW_MAC_CTRL2_MLEN |
++		LTQ_ETHSW_MAC_CTRL2_LCHKL |
++		LTQ_ETHSW_MAC_CTRL2_LCHKS_UNTAG);
++
++	/*
++	* Apply workaround for buffer congestion:
++	* - shorten preambel to 1 byte
++	* - set minimum inter packet gap size to 7 bytes
++	* - enable receive buffer bypass mode
++	*/
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_1, LTQ_ETHSW_MAC_CTRL1_SHORTPRE | 7);
++	dbg_ltq_writel(&mac_pdi_regs->ctrl_6,
++		(6 << LTQ_ETHSW_MAC_CTRL6_RBUF_DLY_WP_SHIFT) |
++		LTQ_ETHSW_MAC_CTRL6_RXBUF_BYPASS);
++
++	/* Set request assertion threshold to 8, IPG counter to 11 */
++	dbg_ltq_writel(&ltq_ethsw_pmac_pdi_regs->rx_ipg, 0x8B);
++
++	/*
++	* Configure frame header control:
++	* - enable reaction on pause frames (flow control)
++	* - remove CRC for packets from PMAC to DMA
++	* - add CRC for packets from DMA to PMAC
++	*/
++	dbg_ltq_writel(&ltq_ethsw_pmac_pdi_regs->hd_ctl, LTQ_ETHSW_PMAC_HD_CTL_FC |
++		/*LTQ_ETHSW_PMAC_HD_CTL_RC | */LTQ_ETHSW_PMAC_HD_CTL_AC);
++}
++
++static int
++ltq_vrx200_hw_init(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	int err = 0;
++	int i;
++
++	netdev_info(dev, "setting up dma\n");
++	ltq_dma_init_port(DMA_PORT_ETOP);
++
++	netdev_info(dev, "setting up pmu\n");
++	clk_enable(priv->clk_ppe);
++
++	/* Reset ethernet and switch subsystems */
++	netdev_info(dev, "reset core\n");
++	ltq_reset_once(BIT(8), 10);
++
++	/* Enable switch macro */
++	ltq_setbits(&ltq_ethsw_mdio_pdi_regs->glob_ctrl,
++		LTQ_ETHSW_GLOB_CTRL_SE);
++
++	/* Disable MDIO auto-polling for all ports */
++	dbg_ltq_writel(&ltq_ethsw_mdio_pdi_regs->mdc_cfg_0, 0);
++
++	/*
++	 * Enable and set MDIO management clock to 2.5 MHz. This is the
++	 * maximum clock for FE PHYs.
++	 * Formula for clock is:
++	 *
++	 *      50 MHz
++	 * x = ----------- - 1
++	 *      2 * f_MDC
++	 */
++	dbg_ltq_writel(&ltq_ethsw_mdio_pdi_regs->mdc_cfg_1,
++		LTQ_ETHSW_MDC_CFG1_MCEN | 9);
++
++	/* Init MAC connected to CPU  */
++	ltq_eth_pmac_init();
++
++	/* Init MACs connected to external MII interfaces */
++	for (i = 0; i < LTQ_ETHSW_MAX_GMAC; i++)
++		ltq_eth_gmac_init(i);
++
++	for (i = 0; i < MAX_DMA_CHAN && !err; i++) {
++		int irq = LTQ_DMA_ETOP + i;
++		struct ltq_vrx200_chan *ch = &priv->ch[i];
++
++		ch->idx = ch->dma.nr = i;
++
++		if (IS_TX(i)) {
++			ltq_dma_alloc_tx(&ch->dma);
++			err = request_irq(irq, ltq_vrx200_dma_irq, IRQF_DISABLED,
++				"vrx200_tx", priv);
++		} else if (IS_RX(i)) {
++			ltq_dma_alloc_rx(&ch->dma);
++			for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM;
++					ch->dma.desc++)
++				if (ltq_vrx200_alloc_skb(ch))
++					err = -ENOMEM;
++			ch->dma.desc = 0;
++			err = request_irq(irq, ltq_vrx200_dma_irq, IRQF_DISABLED,
++				"vrx200_rx", priv);
++		}
++		if (!err)
++			ch->dma.irq = irq;
++	}
++	for (i = 0; i < board_config.num_ports; i++)
++		ltq_eth_port_config(priv, &board_config.ports[i]);
++	return err;
++}
++
++static void
++ltq_vrx200_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
++{
++	strcpy(info->driver, "Lantiq ETOP");
++	strcpy(info->bus_info, "internal");
++	strcpy(info->version, DRV_VERSION);
++}
++
++static int
++ltq_vrx200_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++
++	return phy_ethtool_gset(priv->phydev, cmd);
++}
++
++static int
++ltq_vrx200_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++
++	return phy_ethtool_sset(priv->phydev, cmd);
++}
++
++static int
++ltq_vrx200_nway_reset(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++
++	return phy_start_aneg(priv->phydev);
++}
++
++static const struct ethtool_ops ltq_vrx200_ethtool_ops = {
++	.get_drvinfo = ltq_vrx200_get_drvinfo,
++	.get_settings = ltq_vrx200_get_settings,
++	.set_settings = ltq_vrx200_set_settings,
++	.nway_reset = ltq_vrx200_nway_reset,
++};
++
++static inline int ltq_mdio_poll(struct mii_bus *bus)
++{
++	struct ltq_mdio_access acc;
++	unsigned cnt = 10000;
++
++	while (likely(cnt--)) {
++		acc.val = ltq_r32(&ltq_ethsw_mdio_pdi_regs->mdio_ctrl);
++		if (!acc.bits.mbusy)
++			return 0;
++	}
++
++	return 1;
++}
++
++static int
++ltq_vrx200_mdio_wr(struct mii_bus *bus, int addr, int regnum, u16 val)
++{
++	struct ltq_mdio_access acc;
++	int ret;
++
++	acc.val = 0;
++	acc.bits.mbusy = LTQ_MDIO_MBUSY_BUSY;
++	acc.bits.op = LTQ_MDIO_OP_WRITE;
++	acc.bits.phyad = addr;
++	acc.bits.regad = regnum;
++
++	ret = ltq_mdio_poll(bus);
++	if (ret)
++		return ret;
++
++	dbg_ltq_writel(&ltq_ethsw_mdio_pdi_regs->mdio_write, val);
++	dbg_ltq_writel(&ltq_ethsw_mdio_pdi_regs->mdio_ctrl, acc.val);
++
++	return 0;
++}
++
++static int
++ltq_vrx200_mdio_rd(struct mii_bus *bus, int addr, int regnum)
++{
++	struct ltq_mdio_access acc;
++	int ret;
++
++	acc.val = 0;
++	acc.bits.mbusy = LTQ_MDIO_MBUSY_BUSY;
++	acc.bits.op = LTQ_MDIO_OP_READ;
++	acc.bits.phyad = addr;
++	acc.bits.regad = regnum;
++
++	ret = ltq_mdio_poll(bus);
++	if (ret)
++		goto timeout;
++
++	dbg_ltq_writel(&ltq_ethsw_mdio_pdi_regs->mdio_ctrl, acc.val);
++
++	ret = ltq_mdio_poll(bus);
++	if (ret)
++		goto timeout;
++
++	ret = ltq_r32(&ltq_ethsw_mdio_pdi_regs->mdio_read);
++
++	return ret;
++timeout:
++	return -1;
++}
++
++static void
++ltq_vrx200_mdio_link(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	ltq_eth_gmac_update(priv->phydev, 0);
++}
++
++static int
++ltq_vrx200_mdio_probe(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	struct phy_device *phydev = NULL;
++	int val;
++
++	phydev = priv->mii_bus->phy_map[0];
++
++	if (!phydev) {
++		netdev_err(dev, "no PHY found\n");
++		return -ENODEV;
++	}
++
++	phydev = phy_connect(dev, dev_name(&phydev->dev), &ltq_vrx200_mdio_link,
++			0, 0);
++
++	if (IS_ERR(phydev)) {
++		netdev_err(dev, "Could not attach to PHY\n");
++		return PTR_ERR(phydev);
++	}
++
++	phydev->supported &= (SUPPORTED_10baseT_Half
++			      | SUPPORTED_10baseT_Full
++			      | SUPPORTED_100baseT_Half
++			      | SUPPORTED_100baseT_Full
++			      | SUPPORTED_1000baseT_Half
++			      | SUPPORTED_1000baseT_Full
++			      | SUPPORTED_Autoneg
++			      | SUPPORTED_MII
++			      | SUPPORTED_TP);
++	phydev->advertising = phydev->supported;
++	priv->phydev = phydev;
++
++	pr_info("%s: attached PHY [%s] (phy_addr=%s, irq=%d)\n",
++	       dev->name, phydev->drv->name,
++	       dev_name(&phydev->dev), phydev->irq);
++
++	val = ltq_vrx200_mdio_rd(priv->mii_bus, MDIO_DEVAD_NONE, MII_CTRL1000);
++	val |= ADVERTIZE_MPD;
++	ltq_vrx200_mdio_wr(priv->mii_bus, MDIO_DEVAD_NONE, MII_CTRL1000, val);
++	ltq_vrx200_mdio_wr(priv->mii_bus, 0, 0, 0x1040);
++
++        phy_start_aneg(phydev);
++
++	return 0;
++}
++
++static int
++ltq_vrx200_mdio_init(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	int i;
++	int err;
++
++	priv->mii_bus = mdiobus_alloc();
++	if (!priv->mii_bus) {
++		netdev_err(dev, "failed to allocate mii bus\n");
++		err = -ENOMEM;
++		goto err_out;
++	}
++
++	priv->mii_bus->priv = dev;
++	priv->mii_bus->read = ltq_vrx200_mdio_rd;
++	priv->mii_bus->write = ltq_vrx200_mdio_wr;
++	priv->mii_bus->name = "ltq_mii";
++	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%x", 0);
++	priv->mii_bus->irq = kmalloc(sizeof(int) * PHY_MAX_ADDR, GFP_KERNEL);
++	if (!priv->mii_bus->irq) {
++		err = -ENOMEM;
++		goto err_out_free_mdiobus;
++	}
++
++	for (i = 0; i < PHY_MAX_ADDR; ++i)
++		priv->mii_bus->irq[i] = PHY_POLL;
++
++	if (mdiobus_register(priv->mii_bus)) {
++		err = -ENXIO;
++		goto err_out_free_mdio_irq;
++	}
++
++	if (ltq_vrx200_mdio_probe(dev)) {
++		err = -ENXIO;
++		goto err_out_unregister_bus;
++	}
++	return 0;
++
++err_out_unregister_bus:
++	mdiobus_unregister(priv->mii_bus);
++err_out_free_mdio_irq:
++	kfree(priv->mii_bus->irq);
++err_out_free_mdiobus:
++	mdiobus_free(priv->mii_bus);
++err_out:
++	return err;
++}
++
++static void
++ltq_vrx200_mdio_cleanup(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++
++	phy_disconnect(priv->phydev);
++	mdiobus_unregister(priv->mii_bus);
++	kfree(priv->mii_bus->irq);
++	mdiobus_free(priv->mii_bus);
++}
++
++void phy_dump(struct net_device *dev)
++{
++        struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	int i;
++	for (i = 0; i < 0x1F; i++) {
++		unsigned int val = ltq_vrx200_mdio_rd(priv->mii_bus, 0, i);
++		printk("%d %4X\n", i, val);
++	}
++}
++
++static int
++ltq_vrx200_open(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	int i;
++	unsigned long flags;
++
++	for (i = 0; i < MAX_DMA_CHAN; i++) {
++		struct ltq_vrx200_chan *ch = &priv->ch[i];
++
++		if (!IS_TX(i) && (!IS_RX(i)))
++			continue;
++		napi_enable(&ch->napi);
++		spin_lock_irqsave(&priv->lock, flags);
++		ltq_dma_open(&ch->dma);
++		spin_unlock_irqrestore(&priv->lock, flags);
++	}
++	if (priv->phydev) {
++		phy_start(priv->phydev);
++		phy_dump(dev);
++	}
++	netif_tx_start_all_queues(dev);
++	return 0;
++}
++
++static int
++ltq_vrx200_stop(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	int i;
++	unsigned long flags;
++
++	netif_tx_stop_all_queues(dev);
++	if (priv->phydev)
++		phy_stop(priv->phydev);
++	for (i = 0; i < MAX_DMA_CHAN; i++) {
++		struct ltq_vrx200_chan *ch = &priv->ch[i];
++
++		if (!IS_RX(i) && !IS_TX(i))
++			continue;
++		napi_disable(&ch->napi);
++		spin_lock_irqsave(&priv->lock, flags);
++		ltq_dma_close(&ch->dma);
++		spin_unlock_irqrestore(&priv->lock, flags);
++	}
++	return 0;
++}
++
++static int
++ltq_vrx200_tx(struct sk_buff *skb, struct net_device *dev)
++{
++	int queue = skb_get_queue_mapping(skb);
++	struct netdev_queue *txq = netdev_get_tx_queue(dev, queue);
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	struct ltq_vrx200_chan *ch = &priv->ch[(queue << 1) | 1];
++	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
++	unsigned long flags;
++	u32 byte_offset;
++	int len;
++
++	len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
++
++	if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) {
++		netdev_err(dev, "tx ring full\n");
++		netif_tx_stop_queue(txq);
++		return NETDEV_TX_BUSY;
++	}
++
++	/* dma needs to start on a 16 byte aligned address */
++	byte_offset = CPHYSADDR(skb->data) % 16;
++	ch->skb[ch->dma.desc] = skb;
++
++	dev->trans_start = jiffies;
++
++	spin_lock_irqsave(&priv->lock, flags);
++	desc->addr = ((unsigned int) dma_map_single(NULL, skb->data, len,
++						DMA_TO_DEVICE)) - byte_offset;
++	wmb();
++	desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |
++		LTQ_DMA_TX_OFFSET(byte_offset) | (len & LTQ_DMA_SIZE_MASK);
++	ch->dma.desc++;
++	ch->dma.desc %= LTQ_DESC_NUM;
++	spin_unlock_irqrestore(&priv->lock, flags);
++
++	if (ch->dma.desc_base[ch->dma.desc].ctl & LTQ_DMA_OWN)
++		netif_tx_stop_queue(txq);
++
++	return NETDEV_TX_OK;
++}
++
++static int
++ltq_vrx200_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++
++	/* TODO: mii-toll reports "No MII transceiver present!." ?!*/
++	return phy_mii_ioctl(priv->phydev, rq, cmd);
++}
++
++static u16
++ltq_vrx200_select_queue(struct net_device *dev, struct sk_buff *skb)
++{
++	/* we are currently only using the first queue */
++	return 0;
++}
++
++static int
++ltq_vrx200_init(struct net_device *dev)
++{
++	struct ltq_vrx200_priv *priv = netdev_priv(dev);
++	struct sockaddr mac;
++	int err;
++
++	ether_setup(dev);
++	dev->watchdog_timeo = 10 * HZ;
++
++	err = ltq_vrx200_hw_init(dev);
++	if (err)
++		goto err_hw;
++
++	memcpy(&mac, &priv->pldata->mac, sizeof(struct sockaddr));
++	if (!is_valid_ether_addr(mac.sa_data)) {
++		pr_warn("vrx200: invalid MAC, using random\n");
++		random_ether_addr(mac.sa_data);
++	}
++	eth_mac_addr(dev, &mac);
++
++	if (!ltq_vrx200_mdio_init(dev))
++		dev->ethtool_ops = &ltq_vrx200_ethtool_ops;
++	else
++		pr_warn("vrx200: mdio probe failed\n");;
++	return 0;
++
++err_hw:
++	ltq_vrx200_hw_exit(dev);
++	return err;
++}
++
++static void
++ltq_vrx200_tx_timeout(struct net_device *dev)
++{
++	int err;
++
++	ltq_vrx200_hw_exit(dev);
++	err = ltq_vrx200_hw_init(dev);
++	if (err)
++		goto err_hw;
++	dev->trans_start = jiffies;
++	netif_wake_queue(dev);
++	return;
++
++err_hw:
++	ltq_vrx200_hw_exit(dev);
++	netdev_err(dev, "failed to restart vrx200 after TX timeout\n");
++}
++
++static const struct net_device_ops ltq_eth_netdev_ops = {
++	.ndo_open = ltq_vrx200_open,
++	.ndo_stop = ltq_vrx200_stop,
++	.ndo_start_xmit = ltq_vrx200_tx,
++	.ndo_change_mtu = eth_change_mtu,
++	.ndo_do_ioctl = ltq_vrx200_ioctl,
++	.ndo_set_mac_address = eth_mac_addr,
++	.ndo_validate_addr = eth_validate_addr,
++	.ndo_select_queue = ltq_vrx200_select_queue,
++	.ndo_init = ltq_vrx200_init,
++	.ndo_tx_timeout = ltq_vrx200_tx_timeout,
++};
++
++static int __devinit
++ltq_vrx200_probe(struct platform_device *pdev)
++{
++	struct net_device *dev;
++	struct ltq_vrx200_priv *priv;
++	struct resource *res;
++	int err;
++	int i;
++
++	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++	if (!res) {
++		dev_err(&pdev->dev, "failed to get vrx200 resource\n");
++		err = -ENOENT;
++		goto err_out;
++	}
++
++	res = devm_request_mem_region(&pdev->dev, res->start,
++		resource_size(res), dev_name(&pdev->dev));
++	if (!res) {
++		dev_err(&pdev->dev, "failed to request vrx200 resource\n");
++		err = -EBUSY;
++		goto err_out;
++	}
++
++	ltq_vrx200_membase = devm_ioremap_nocache(&pdev->dev,
++		res->start, resource_size(res));
++	if (!ltq_vrx200_membase) {
++		dev_err(&pdev->dev, "failed to remap vrx200 engine %d\n",
++			pdev->id);
++		err = -ENOMEM;
++		goto err_out;
++	}
++
++	if (ltq_gpio_request(&pdev->dev, 42, 2, 1, "MDIO") ||
++			ltq_gpio_request(&pdev->dev, 43, 2, 1, "MDC")) {
++		dev_err(&pdev->dev, "failed to request MDIO gpios\n");
++		err = -EBUSY;
++		goto err_out;
++	}
++
++	dev = alloc_etherdev_mq(sizeof(struct ltq_vrx200_priv), 4);
++	strcpy(dev->name, "eth%d");
++	dev->netdev_ops = &ltq_eth_netdev_ops;
++	priv = netdev_priv(dev);
++	priv->res = res;
++	priv->pldata = dev_get_platdata(&pdev->dev);
++	priv->netdev = dev;
++
++	priv->clk_ppe = clk_get(&pdev->dev, NULL);
++	if (IS_ERR(priv->clk_ppe))
++		return PTR_ERR(priv->clk_ppe);
++
++	spin_lock_init(&priv->lock);
++
++	for (i = 0; i < MAX_DMA_CHAN; i++) {
++		if (IS_TX(i))
++			netif_napi_add(dev, &priv->ch[i].napi,
++				ltq_vrx200_poll_tx, 8);
++		else if (IS_RX(i))
++			netif_napi_add(dev, &priv->ch[i].napi,
++				ltq_vrx200_poll_rx, 32);
++		priv->ch[i].netdev = dev;
++	}
++
++	err = register_netdev(dev);
++	if (err)
++		goto err_free;
++
++	platform_set_drvdata(pdev, dev);
++	return 0;
++
++err_free:
++	kfree(dev);
++err_out:
++	return err;
++}
++
++static int __devexit
++ltq_vrx200_remove(struct platform_device *pdev)
++{
++	struct net_device *dev = platform_get_drvdata(pdev);
++
++	if (dev) {
++		netif_tx_stop_all_queues(dev);
++		ltq_vrx200_hw_exit(dev);
++		ltq_vrx200_mdio_cleanup(dev);
++		unregister_netdev(dev);
++	}
++	return 0;
++}
++
++static struct platform_driver ltq_mii_driver = {
++	.probe = ltq_vrx200_probe,
++	.remove = __devexit_p(ltq_vrx200_remove),
++	.driver = {
++		.name = "ltq_vrx200",
++		.owner = THIS_MODULE,
++	},
++};
++
++module_platform_driver(ltq_mii_driver);
++
++MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
++MODULE_DESCRIPTION("Lantiq SoC ETOP");
++MODULE_LICENSE("GPL");
+-- 
+1.7.9.1
+