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-rw-r--r--target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch1426
1 files changed, 1426 insertions, 0 deletions
diff --git a/target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch b/target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch
new file mode 100644
index 000000000..bc2b70dcd
--- /dev/null
+++ b/target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch
@@ -0,0 +1,1426 @@
+From fbfdf78ba827a8f854ae3ed7b11ea6df4054ffb1 Mon Sep 17 00:00:00 2001
+From: John Crispin <blogic@openwrt.org>
+Date: Mon, 22 Oct 2012 12:22:23 +0200
+Subject: [PATCH 25/40] NET: MIPS: lantiq: adds xrx200-net
+
+---
+ drivers/net/ethernet/Kconfig | 8 +-
+ drivers/net/ethernet/Makefile | 1 +
+ drivers/net/ethernet/lantiq_pce.h | 163 +++++
+ drivers/net/ethernet/lantiq_xrx200.c | 1203 ++++++++++++++++++++++++++++++++++
+ 4 files changed, 1374 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/net/ethernet/lantiq_pce.h
+ create mode 100644 drivers/net/ethernet/lantiq_xrx200.c
+
+diff --git a/drivers/net/ethernet/Kconfig b/drivers/net/ethernet/Kconfig
+index e4ff389..35cb7b0 100644
+--- a/drivers/net/ethernet/Kconfig
++++ b/drivers/net/ethernet/Kconfig
+@@ -83,7 +83,13 @@ config LANTIQ_ETOP
+ tristate "Lantiq SoC ETOP driver"
+ depends on SOC_TYPE_XWAY
+ ---help---
+- Support for the MII0 inside the Lantiq SoC
++ Support for the MII0 inside the Lantiq ADSL SoC
++
++config LANTIQ_XRX200
++ tristate "Lantiq SoC XRX200 driver"
++ depends on SOC_TYPE_XWAY
++ ---help---
++ Support for the MII0 inside the Lantiq VDSL SoC
+
+ source "drivers/net/ethernet/marvell/Kconfig"
+ source "drivers/net/ethernet/mellanox/Kconfig"
+diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
+index d447307..4f95100 100644
+--- a/drivers/net/ethernet/Makefile
++++ b/drivers/net/ethernet/Makefile
+@@ -36,6 +36,7 @@ obj-$(CONFIG_IP1000) += icplus/
+ obj-$(CONFIG_JME) += jme.o
+ obj-$(CONFIG_KORINA) += korina.o
+ obj-$(CONFIG_LANTIQ_ETOP) += lantiq_etop.o
++obj-$(CONFIG_LANTIQ_XRX200) += lantiq_xrx200.o
+ obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/
+ obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/
+ obj-$(CONFIG_NET_VENDOR_MICREL) += micrel/
+diff --git a/drivers/net/ethernet/lantiq_pce.h b/drivers/net/ethernet/lantiq_pce.h
+new file mode 100644
+index 0000000..0c38efe
+--- /dev/null
++++ b/drivers/net/ethernet/lantiq_pce.h
+@@ -0,0 +1,163 @@
++/*
++ * 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) 2010 Lantiq Deutschland GmbH
++ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
++ *
++ * PCE microcode extracted from UGW5.2 switch api
++ */
++
++/* Switch API Micro Code V0.3 */
++enum {
++ OUT_MAC0 = 0,
++ OUT_MAC1,
++ OUT_MAC2,
++ OUT_MAC3,
++ OUT_MAC4,
++ OUT_MAC5,
++ OUT_ETHTYP,
++ OUT_VTAG0,
++ OUT_VTAG1,
++ OUT_ITAG0,
++ OUT_ITAG1, /*10 */
++ OUT_ITAG2,
++ OUT_ITAG3,
++ OUT_IP0,
++ OUT_IP1,
++ OUT_IP2,
++ OUT_IP3,
++ OUT_SIP0,
++ OUT_SIP1,
++ OUT_SIP2,
++ OUT_SIP3, /*20*/
++ OUT_SIP4,
++ OUT_SIP5,
++ OUT_SIP6,
++ OUT_SIP7,
++ OUT_DIP0,
++ OUT_DIP1,
++ OUT_DIP2,
++ OUT_DIP3,
++ OUT_DIP4,
++ OUT_DIP5, /*30*/
++ OUT_DIP6,
++ OUT_DIP7,
++ OUT_SESID,
++ OUT_PROT,
++ OUT_APP0,
++ OUT_APP1,
++ OUT_IGMP0,
++ OUT_IGMP1,
++ OUT_IPOFF, /*39*/
++ OUT_NONE = 63
++};
++
++/* parser's microcode length type */
++#define INSTR 0
++#define IPV6 1
++#define LENACCU 2
++
++/* parser's microcode flag type */
++enum {
++ FLAG_ITAG = 0,
++ FLAG_VLAN,
++ FLAG_SNAP,
++ FLAG_PPPOE,
++ FLAG_IPV6,
++ FLAG_IPV6FL,
++ FLAG_IPV4,
++ FLAG_IGMP,
++ FLAG_TU,
++ FLAG_HOP,
++ FLAG_NN1, /*10 */
++ FLAG_NN2,
++ FLAG_END,
++ FLAG_NO, /*13*/
++};
++
++/* Micro code version V2_11 (extension for parsing IPv6 in PPPoE) */
++#define MC_ENTRY(val, msk, ns, out, len, type, flags, ipv4_len) \
++ { {val, msk, (ns<<10 | out<<4 | len>>1), (len&1)<<15 | type<<13 | flags<<9 | ipv4_len<<8 }}
++struct pce_microcode {
++ unsigned short val[4];
++/* unsigned short val_2;
++ unsigned short val_1;
++ unsigned short val_0;*/
++} pce_microcode[] = {
++ /* value mask ns fields L type flags ipv4_len */
++ MC_ENTRY(0x88c3, 0xFFFF, 1, OUT_ITAG0, 4, INSTR, FLAG_ITAG, 0),
++ MC_ENTRY(0x8100, 0xFFFF, 2, OUT_VTAG0, 2, INSTR, FLAG_VLAN, 0),
++ MC_ENTRY(0x88A8, 0xFFFF, 1, OUT_VTAG0, 2, INSTR, FLAG_VLAN, 0),
++ MC_ENTRY(0x8100, 0xFFFF, 1, OUT_VTAG0, 2, INSTR, FLAG_VLAN, 0),
++ MC_ENTRY(0x8864, 0xFFFF, 17, OUT_ETHTYP, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0800, 0xFFFF, 21, OUT_ETHTYP, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x86DD, 0xFFFF, 22, OUT_ETHTYP, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x8863, 0xFFFF, 16, OUT_ETHTYP, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0xF800, 10, OUT_NONE, 0, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 38, OUT_ETHTYP, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0600, 0x0600, 38, OUT_ETHTYP, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 12, OUT_NONE, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0xAAAA, 0xFFFF, 14, OUT_NONE, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0300, 0xFF00, 39, OUT_NONE, 0, INSTR, FLAG_SNAP, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_DIP7, 3, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 18, OUT_DIP7, 3, INSTR, FLAG_PPPOE, 0),
++ MC_ENTRY(0x0021, 0xFFFF, 21, OUT_NONE, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0057, 0xFFFF, 22, OUT_NONE, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x4000, 0xF000, 24, OUT_IP0, 4, INSTR, FLAG_IPV4, 1),
++ MC_ENTRY(0x6000, 0xF000, 27, OUT_IP0, 3, INSTR, FLAG_IPV6, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 25, OUT_IP3, 2, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 26, OUT_SIP0, 4, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 38, OUT_NONE, 0, LENACCU, FLAG_NO, 0),
++ MC_ENTRY(0x1100, 0xFF00, 37, OUT_PROT, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0600, 0xFF00, 37, OUT_PROT, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0xFF00, 33, OUT_IP3, 17, INSTR, FLAG_HOP, 0),
++ MC_ENTRY(0x2B00, 0xFF00, 33, OUT_IP3, 17, INSTR, FLAG_NN1, 0),
++ MC_ENTRY(0x3C00, 0xFF00, 33, OUT_IP3, 17, INSTR, FLAG_NN2, 0),
++ MC_ENTRY(0x0000, 0x0000, 37, OUT_PROT, 1, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0xFF00, 33, OUT_NONE, 0, IPV6, FLAG_HOP, 0),
++ MC_ENTRY(0x2B00, 0xFF00, 33, OUT_NONE, 0, IPV6, FLAG_NN1, 0),
++ MC_ENTRY(0x3C00, 0xFF00, 33, OUT_NONE, 0, IPV6, FLAG_NN2, 0),
++ MC_ENTRY(0x0000, 0x0000, 38, OUT_PROT, 1, IPV6, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 38, OUT_SIP0, 16, INSTR, FLAG_NO, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_APP0, 4, INSTR, FLAG_IGMP, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++ MC_ENTRY(0x0000, 0x0000, 39, OUT_NONE, 0, INSTR, FLAG_END, 0),
++};
+diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c
+new file mode 100644
+index 0000000..f815165
+--- /dev/null
++++ b/drivers/net/ethernet/lantiq_xrx200.c
+@@ -0,0 +1,1203 @@
++/*
++ * 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) 2010 Lantiq Deutschland
++ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
++ */
++
++#include <linux/etherdevice.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/interrupt.h>
++#include <linux/clk.h>
++#include <asm/delay.h>
++
++#include <linux/of_net.h>
++#include <linux/of_mdio.h>
++#include <linux/of_gpio.h>
++
++#include <xway_dma.h>
++#include <lantiq_soc.h>
++
++#include "lantiq_pce.h"
++
++#define SW_POLLING
++#define SW_ROUTING
++#define SW_PORTMAP
++
++#ifdef SW_ROUTING
++ #ifdef SW_PORTMAP
++#define XRX200_MAX_DEV 7
++ #else
++#define XRX200_MAX_DEV 2
++ #endif
++#else
++#define XRX200_MAX_DEV 1
++#endif
++
++#define XRX200_MAX_PORT 7
++#define XRX200_MAX_DMA 8
++
++#define XRX200_HEADROOM 4
++
++#define XRX200_TX_TIMEOUT (10 * HZ)
++
++/* port type */
++#define XRX200_PORT_TYPE_PHY 1
++#define XRX200_PORT_TYPE_MAC 2
++
++/* DMA */
++#define XRX200_DMA_CRC_LEN 0x4
++#define XRX200_DMA_DATA_LEN 0x600
++#define XRX200_DMA_IRQ INT_NUM_IM2_IRL0
++#define XRX200_DMA_RX 0
++#define XRX200_DMA_TX 1
++
++/* fetch / store dma */
++#define FDMA_PCTRL0 0x2A00
++#define FDMA_PCTRLx(x) (FDMA_PCTRL0 + (x * 0x18))
++#define SDMA_PCTRL0 0x2F00
++#define SDMA_PCTRLx(x) (SDMA_PCTRL0 + (x * 0x18))
++
++/* buffer management */
++#define BM_PCFG0 0x200
++#define BM_PCFGx(x) (BM_PCFG0 + (x * 8))
++
++/* MDIO */
++#define MDIO_GLOB 0x0000
++#define MDIO_CTRL 0x0020
++#define MDIO_READ 0x0024
++#define MDIO_WRITE 0x0028
++#define MDIO_PHY0 0x0054
++#define MDIO_PHY(x) (0x0054 - (x * sizeof(unsigned)))
++#define MDIO_CLK_CFG0 0x002C
++#define MDIO_CLK_CFG1 0x0030
++
++#define MDIO_GLOB_ENABLE 0x8000
++#define MDIO_BUSY BIT(12)
++#define MDIO_RD BIT(11)
++#define MDIO_WR BIT(10)
++#define MDIO_MASK 0x1f
++#define MDIO_ADDRSHIFT 5
++#define MDIO1_25MHZ 9
++
++#define MDIO_PHY_LINK_DOWN 0x4000
++#define MDIO_PHY_LINK_UP 0x2000
++
++#define MDIO_PHY_SPEED_M10 0x0000
++#define MDIO_PHY_SPEED_M100 0x0800
++#define MDIO_PHY_SPEED_G1 0x1000
++
++#define MDIO_PHY_FDUP_EN 0x0600
++#define MDIO_PHY_FDUP_DIS 0x0200
++
++#define MDIO_PHY_LINK_MASK 0x6000
++#define MDIO_PHY_SPEED_MASK 0x1800
++#define MDIO_PHY_FDUP_MASK 0x0600
++#define MDIO_PHY_ADDR_MASK 0x001f
++#define MDIO_UPDATE_MASK MDIO_PHY_ADDR_MASK | MDIO_PHY_LINK_MASK | \
++ MDIO_PHY_SPEED_MASK | MDIO_PHY_FDUP_MASK
++
++/* MII */
++#define MII_CFG(p) (p * 8)
++
++#define MII_CFG_EN BIT(14)
++
++#define MII_CFG_MODE_MIIP 0x0
++#define MII_CFG_MODE_MIIM 0x1
++#define MII_CFG_MODE_RMIIP 0x2
++#define MII_CFG_MODE_RMIIM 0x3
++#define MII_CFG_MODE_RGMII 0x4
++#define MII_CFG_MODE_MASK 0xf
++
++#define MII_CFG_RATE_M2P5 0x00
++#define MII_CFG_RATE_M25 0x10
++#define MII_CFG_RATE_M125 0x20
++#define MII_CFG_RATE_M50 0x30
++#define MII_CFG_RATE_AUTO 0x40
++#define MII_CFG_RATE_MASK 0x70
++
++/* cpu port mac */
++#define PMAC_HD_CTL 0x0000
++#define PMAC_RX_IPG 0x0024
++#define PMAC_EWAN 0x002c
++
++#define PMAC_IPG_MASK 0xf
++#define PMAC_HD_CTL_AS 0x0008
++#define PMAC_HD_CTL_AC 0x0004
++#define PMAC_HD_CTL_RXSH 0x0040
++#define PMAC_HD_CTL_AST 0x0080
++#define PMAC_HD_CTL_RST 0x0100
++
++/* PCE */
++#define PCE_TBL_KEY(x) (0x1100 + ((7 - x) * 4))
++#define PCE_TBL_MASK 0x1120
++#define PCE_TBL_VAL(x) (0x1124 + ((4 - x) * 4))
++#define PCE_TBL_ADDR 0x1138
++#define PCE_TBL_CTRL 0x113c
++#define PCE_PMAP1 0x114c
++#define PCE_PMAP2 0x1150
++#define PCE_PMAP3 0x1154
++#define PCE_GCTRL_REG(x) (0x1158 + (x * 4))
++#define PCE_PCTRL_REG(p, x) (0x1200 + (((p * 0xa) + x) * 4))
++
++#define PCE_TBL_BUSY BIT(15)
++#define PCE_TBL_CFG_ADDR_MASK 0x1f
++#define PCE_TBL_CFG_ADWR 0x20
++#define PCE_TBL_CFG_ADWR_MASK 0x60
++#define PCE_INGRESS BIT(11)
++
++/* MAC */
++#define MAC_FLEN_REG (0x2314)
++#define MAC_CTRL_REG(p, x) (0x240c + (((p * 0xc) + x) * 4))
++
++/* buffer management */
++#define BM_PCFG(p) (0x200 + (p * 8))
++
++/* special tag in TX path header */
++#define SPID_SHIFT 24
++#define DPID_SHIFT 16
++#define DPID_ENABLE 1
++#define SPID_CPU_PORT 2
++#define PORT_MAP_SEL BIT(15)
++#define PORT_MAP_EN BIT(14)
++#define PORT_MAP_SHIFT 1
++#define PORT_MAP_MASK 0x3f
++
++#define SPPID_MASK 0x7
++#define SPPID_SHIFT 4
++
++/* MII regs not yet in linux */
++#define MDIO_DEVAD_NONE (-1)
++#define ADVERTIZE_MPD (1 << 10)
++
++struct xrx200_port {
++ u8 num;
++ u8 phy_addr;
++ u16 flags;
++ phy_interface_t phy_if;
++
++ int link;
++ int gpio;
++ enum of_gpio_flags gpio_flags;
++
++ struct phy_device *phydev;
++ struct device_node *phy_node;
++};
++
++struct xrx200_chan {
++ int idx;
++ int refcount;
++ int tx_free;
++
++ struct net_device dummy_dev;
++ struct net_device *devs[XRX200_MAX_DEV];
++
++ struct napi_struct napi;
++ struct ltq_dma_channel dma;
++ struct sk_buff *skb[LTQ_DESC_NUM];
++};
++
++struct xrx200_hw {
++ struct clk *clk;
++ struct mii_bus *mii_bus;
++
++ struct xrx200_chan chan[XRX200_MAX_DMA];
++
++ struct net_device *devs[XRX200_MAX_DEV];
++ int num_devs;
++
++ int port_map[XRX200_MAX_PORT];
++ unsigned short wan_map;
++
++ spinlock_t lock;
++};
++
++struct xrx200_priv {
++ struct net_device_stats stats;
++ int id;
++
++ struct xrx200_port port[XRX200_MAX_PORT];
++ int num_port;
++ int wan;
++ unsigned short port_map;
++ const void *mac;
++
++ struct xrx200_hw *hw;
++};
++
++static __iomem void *xrx200_switch_membase;
++static __iomem void *xrx200_mii_membase;
++static __iomem void *xrx200_mdio_membase;
++static __iomem void *xrx200_pmac_membase;
++
++#define ltq_switch_r32(x) ltq_r32(xrx200_switch_membase + (x))
++#define ltq_switch_w32(x, y) ltq_w32(x, xrx200_switch_membase + (y))
++#define ltq_switch_w32_mask(x, y, z) \
++ ltq_w32_mask(x, y, xrx200_switch_membase + (z))
++
++#define ltq_mdio_r32(x) ltq_r32(xrx200_mdio_membase + (x))
++#define ltq_mdio_w32(x, y) ltq_w32(x, xrx200_mdio_membase + (y))
++#define ltq_mdio_w32_mask(x, y, z) \
++ ltq_w32_mask(x, y, xrx200_mdio_membase + (z))
++
++#define ltq_mii_r32(x) ltq_r32(xrx200_mii_membase + (x))
++#define ltq_mii_w32(x, y) ltq_w32(x, xrx200_mii_membase + (y))
++#define ltq_mii_w32_mask(x, y, z) \
++ ltq_w32_mask(x, y, xrx200_mii_membase + (z))
++
++#define ltq_pmac_r32(x) ltq_r32(xrx200_pmac_membase + (x))
++#define ltq_pmac_w32(x, y) ltq_w32(x, xrx200_pmac_membase + (y))
++#define ltq_pmac_w32_mask(x, y, z) \
++ ltq_w32_mask(x, y, xrx200_pmac_membase + (z))
++
++static int xrx200_open(struct net_device *dev)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++ unsigned long flags;
++ int i;
++
++ for (i = 0; i < XRX200_MAX_DMA; i++) {
++ if (!priv->hw->chan[i].dma.irq)
++ continue;
++ spin_lock_irqsave(&priv->hw->lock, flags);
++ if (!priv->hw->chan[i].refcount) {
++ napi_enable(&priv->hw->chan[i].napi);
++ ltq_dma_open(&priv->hw->chan[i].dma);
++ }
++ priv->hw->chan[i].refcount++;
++ spin_unlock_irqrestore(&priv->hw->lock, flags);
++ }
++ for (i = 0; i < priv->num_port; i++)
++ if (priv->port[i].phydev)
++ phy_start(priv->port[i].phydev);
++ netif_start_queue(dev);
++
++ return 0;
++}
++
++static int xrx200_close(struct net_device *dev)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++ unsigned long flags;
++ int i;
++
++ netif_stop_queue(dev);
++
++ for (i = 0; i < priv->num_port; i++)
++ if (priv->port[i].phydev)
++ phy_stop(priv->port[i].phydev);
++
++ for (i = 0; i < XRX200_MAX_DMA; i++) {
++ if (!priv->hw->chan[i].dma.irq)
++ continue;
++ spin_lock_irqsave(&priv->hw->lock, flags);
++ priv->hw->chan[i].refcount--;
++ if (!priv->hw->chan[i].refcount) {
++ napi_disable(&priv->hw->chan[i].napi);
++ ltq_dma_close(&priv->hw->chan[XRX200_DMA_RX].dma);
++ }
++ spin_unlock_irqrestore(&priv->hw->lock, flags);
++ }
++
++ return 0;
++}
++
++static int xrx200_alloc_skb(struct xrx200_chan *ch)
++{
++#define DMA_PAD (NET_IP_ALIGN + NET_SKB_PAD)
++ ch->skb[ch->dma.desc] = dev_alloc_skb(XRX200_DMA_DATA_LEN + DMA_PAD);
++ if (!ch->skb[ch->dma.desc])
++ return -ENOMEM;
++
++ skb_reserve(ch->skb[ch->dma.desc], NET_SKB_PAD);
++ ch->dma.desc_base[ch->dma.desc].addr = dma_map_single(NULL,
++ ch->skb[ch->dma.desc]->data, XRX200_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) |
++ XRX200_DMA_DATA_LEN;
++ skb_reserve(ch->skb[ch->dma.desc], NET_IP_ALIGN);
++
++ return 0;
++}
++
++static void xrx200_hw_receive(struct xrx200_chan *ch, int id)
++{
++ struct net_device *dev = ch->devs[id];
++ struct xrx200_priv *priv = netdev_priv(dev);
++ 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) - XRX200_DMA_CRC_LEN;
++ unsigned long flags;
++
++ spin_lock_irqsave(&priv->hw->lock, flags);
++ if (xrx200_alloc_skb(ch)) {
++ netdev_err(dev,
++ "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->hw->lock, flags);
++
++ skb_put(skb, len);
++#ifdef SW_ROUTING
++ skb_pull(skb, 8);
++#endif
++ skb->dev = dev;
++ skb->protocol = eth_type_trans(skb, dev);
++ netif_receive_skb(skb);
++ priv->stats.rx_packets++;
++ priv->stats.rx_bytes+=len;
++}
++
++static int xrx200_poll_rx(struct napi_struct *napi, int budget)
++{
++ struct xrx200_chan *ch = container_of(napi,
++ struct xrx200_chan, napi);
++ struct xrx200_priv *priv = netdev_priv(ch->devs[0]);
++ 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) {
++#ifdef SW_ROUTING
++ struct sk_buff *skb = ch->skb[ch->dma.desc];
++ u32 *special_tag = (u32*)skb->data;
++ int port = (special_tag[1] >> SPPID_SHIFT) & SPPID_MASK;
++ xrx200_hw_receive(ch, priv->hw->port_map[port]);
++#else
++ xrx200_hw_receive(ch, 0);
++#endif
++ rx++;
++ } else {
++ complete = 1;
++ }
++ }
++ if (complete || !rx) {
++ napi_complete(&ch->napi);
++ spin_lock_irqsave(&priv->hw->lock, flags);
++ ltq_dma_ack_irq(&ch->dma);
++ spin_unlock_irqrestore(&priv->hw->lock, flags);
++ }
++ return rx;
++}
++
++static int xrx200_poll_tx(struct napi_struct *napi, int budget)
++{
++ struct xrx200_chan *ch =
++ container_of(napi, struct xrx200_chan, napi);
++ struct xrx200_priv *priv = netdev_priv(ch->devs[0]);
++ unsigned long flags;
++ int i;
++
++ spin_lock_irqsave(&priv->hw->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->hw->lock, flags);
++
++ for (i = 0; i < XRX200_MAX_DEV && ch->devs[i]; i++) {
++ struct netdev_queue *txq =
++ netdev_get_tx_queue(ch->devs[i], 0);
++ if (netif_tx_queue_stopped(txq))
++ netif_tx_start_queue(txq);
++ }
++ napi_complete(&ch->napi);
++ spin_lock_irqsave(&priv->hw->lock, flags);
++ ltq_dma_ack_irq(&ch->dma);
++ spin_unlock_irqrestore(&priv->hw->lock, flags);
++
++ return 1;
++}
++
++static struct net_device_stats *xrx200_get_stats (struct net_device *dev)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++
++ return &priv->stats;
++}
++
++static void xrx200_tx_timeout(struct net_device *dev)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++
++ printk(KERN_ERR "%s: transmit timed out, disable the dma channel irq\n", dev->name);
++
++ priv->stats.tx_errors++;
++ netif_wake_queue(dev);
++}
++
++static int xrx200_start_xmit(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 xrx200_priv *priv = netdev_priv(dev);
++ struct xrx200_chan *ch = &priv->hw->chan[XRX200_DMA_TX];
++ struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
++ unsigned long flags;
++ u32 byte_offset;
++ int len;
++#ifdef SW_ROUTING
++ #ifdef SW_PORTMAP
++ u32 special_tag = (SPID_CPU_PORT << SPID_SHIFT) | PORT_MAP_SEL | PORT_MAP_EN | DPID_ENABLE;
++ #else
++ u32 special_tag = (SPID_CPU_PORT << SPID_SHIFT) | DPID_ENABLE;
++ #endif
++#endif
++
++ 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;
++ }
++#ifdef SW_ROUTING
++ #ifdef SW_PORTMAP
++ special_tag |= priv->port_map << PORT_MAP_SHIFT;
++ #else
++ if(priv->id)
++ special_tag |= (1 << DPID_SHIFT);
++ #endif
++ if(skb_headroom(skb) < 4) {
++ struct sk_buff *tmp = skb_realloc_headroom(skb, 4);
++ dev_kfree_skb_any(skb);
++ skb = tmp;
++ }
++ skb_push(skb, 4);
++ memcpy(skb->data, &special_tag, sizeof(u32));
++ len += 4;
++#endif
++
++ /* 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->hw->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->hw->lock, flags);
++
++ if (ch->dma.desc_base[ch->dma.desc].ctl & LTQ_DMA_OWN)
++ netif_tx_stop_queue(txq);
++
++ priv->stats.tx_packets++;
++ priv->stats.tx_bytes+=len;
++
++ return NETDEV_TX_OK;
++}
++
++static irqreturn_t xrx200_dma_irq(int irq, void *priv)
++{
++ struct xrx200_hw *hw = priv;
++ int ch = irq - XRX200_DMA_IRQ;
++
++ napi_schedule(&hw->chan[ch].napi);
++
++ return IRQ_HANDLED;
++}
++
++static int xrx200_dma_init(struct xrx200_hw *hw)
++{
++ int i, err = 0;
++
++ ltq_dma_init_port(DMA_PORT_ETOP);
++
++ for (i = 0; i < 8 && !err; i++) {
++ int irq = XRX200_DMA_IRQ + i;
++ struct xrx200_chan *ch = &hw->chan[i];
++
++ ch->idx = ch->dma.nr = i;
++
++ if (i == XRX200_DMA_TX) {
++ ltq_dma_alloc_tx(&ch->dma);
++ err = request_irq(irq, xrx200_dma_irq, 0, "vrx200_tx", hw);
++ } else if (i == XRX200_DMA_RX) {
++ ltq_dma_alloc_rx(&ch->dma);
++ for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM;
++ ch->dma.desc++)
++ if (xrx200_alloc_skb(ch))
++ err = -ENOMEM;
++ ch->dma.desc = 0;
++ err = request_irq(irq, xrx200_dma_irq, 0, "vrx200_rx", hw);
++ } else
++ continue;
++
++ if (!err)
++ ch->dma.irq = irq;
++ }
++
++ return err;
++}
++
++#ifdef SW_POLLING
++static void xrx200_gmac_update(struct xrx200_port *port)
++{
++ u16 phyaddr = port->phydev->addr & MDIO_PHY_ADDR_MASK;
++ u16 miimode = ltq_mii_r32(MII_CFG(port->num)) & MII_CFG_MODE_MASK;
++ u16 miirate = 0;
++
++ switch (port->phydev->speed) {
++ case SPEED_1000:
++ phyaddr |= MDIO_PHY_SPEED_G1;
++ miirate = MII_CFG_RATE_M125;
++ break;
++
++ case SPEED_100:
++ phyaddr |= MDIO_PHY_SPEED_M100;
++ switch (miimode) {
++ case MII_CFG_MODE_RMIIM:
++ case MII_CFG_MODE_RMIIP:
++ miirate = MII_CFG_RATE_M50;
++ break;
++ default:
++ miirate = MII_CFG_RATE_M25;
++ break;
++ }
++ break;
++
++ default:
++ phyaddr |= MDIO_PHY_SPEED_M10;
++ miirate = MII_CFG_RATE_M2P5;
++ break;
++ }
++
++ if (port->phydev->link)
++ phyaddr |= MDIO_PHY_LINK_UP;
++ else
++ phyaddr |= MDIO_PHY_LINK_DOWN;
++
++ if (port->phydev->duplex == DUPLEX_FULL)
++ phyaddr |= MDIO_PHY_FDUP_EN;
++ else
++ phyaddr |= MDIO_PHY_FDUP_DIS;
++
++ ltq_mdio_w32_mask(MDIO_UPDATE_MASK, phyaddr, MDIO_PHY(port->num));
++ ltq_mii_w32_mask(MII_CFG_RATE_MASK, miirate, MII_CFG(port->num));
++ udelay(1);
++}
++#else
++static void xrx200_gmac_update(struct xrx200_port *port)
++{
++
++}
++#endif
++
++static void xrx200_mdio_link(struct net_device *dev)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++ int i;
++
++ for (i = 0; i < priv->num_port; i++) {
++ if (!priv->port[i].phydev)
++ continue;
++
++ if (priv->port[i].link != priv->port[i].phydev->link) {
++ xrx200_gmac_update(&priv->port[i]);
++ priv->port[i].link = priv->port[i].phydev->link;
++ netdev_info(dev, "port %d %s link\n",
++ priv->port[i].num,
++ (priv->port[i].link)?("got"):("lost"));
++ }
++ }
++}
++
++static inline int xrx200_mdio_poll(struct mii_bus *bus)
++{
++ unsigned cnt = 10000;
++
++ while (likely(cnt--)) {
++ unsigned ctrl = ltq_mdio_r32(MDIO_CTRL);
++ if ((ctrl & MDIO_BUSY) == 0)
++ return 0;
++ }
++
++ return 1;
++}
++
++static int xrx200_mdio_wr(struct mii_bus *bus, int addr, int reg, u16 val)
++{
++ if (xrx200_mdio_poll(bus))
++ return 1;
++
++ ltq_mdio_w32(val, MDIO_WRITE);
++ ltq_mdio_w32(MDIO_BUSY | MDIO_WR |
++ ((addr & MDIO_MASK) << MDIO_ADDRSHIFT) |
++ (reg & MDIO_MASK),
++ MDIO_CTRL);
++
++ return 0;
++}
++
++static int xrx200_mdio_rd(struct mii_bus *bus, int addr, int reg)
++{
++ if (xrx200_mdio_poll(bus))
++ return -1;
++
++ ltq_mdio_w32(MDIO_BUSY | MDIO_RD |
++ ((addr & MDIO_MASK) << MDIO_ADDRSHIFT) |
++ (reg & MDIO_MASK),
++ MDIO_CTRL);
++
++ if (xrx200_mdio_poll(bus))
++ return -1;
++
++ return ltq_mdio_r32(MDIO_READ);
++}
++
++static int xrx200_mdio_probe(struct net_device *dev, struct xrx200_port *port)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++ struct phy_device *phydev = NULL;
++ unsigned val;
++
++ phydev = priv->hw->mii_bus->phy_map[port->phy_addr];
++
++ if (!phydev) {
++ netdev_err(dev, "no PHY found\n");
++ return -ENODEV;
++ }
++
++ phydev = phy_connect(dev, dev_name(&phydev->dev), &xrx200_mdio_link,
++ 0, port->phy_if);
++
++ 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;
++ port->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);
++
++#ifdef SW_POLLING
++ phy_read_status(phydev);
++
++ val = xrx200_mdio_rd(priv->hw->mii_bus, MDIO_DEVAD_NONE, MII_CTRL1000);
++ val |= ADVERTIZE_MPD;
++ xrx200_mdio_wr(priv->hw->mii_bus, MDIO_DEVAD_NONE, MII_CTRL1000, val);
++ xrx200_mdio_wr(priv->hw->mii_bus, 0, 0, 0x1040);
++
++ phy_start_aneg(phydev);
++#endif
++ return 0;
++}
++
++static void xrx200_port_config(struct xrx200_priv *priv,
++ const struct xrx200_port *port)
++{
++ u16 miimode = 0;
++
++ switch (port->num) {
++ case 0: /* xMII0 */
++ case 1: /* xMII1 */
++ switch (port->phy_if) {
++ case PHY_INTERFACE_MODE_MII:
++ if (port->flags & XRX200_PORT_TYPE_PHY)
++ /* MII MAC mode, connected to external PHY */
++ miimode = MII_CFG_MODE_MIIM;
++ else
++ /* MII PHY mode, connected to external MAC */
++ miimode = MII_CFG_MODE_MIIP;
++ break;
++ case PHY_INTERFACE_MODE_RMII:
++ if (port->flags & XRX200_PORT_TYPE_PHY)
++ /* RMII MAC mode, connected to external PHY */
++ miimode = MII_CFG_MODE_RMIIM;
++ else
++ /* RMII PHY mode, connected to external MAC */
++ miimode = MII_CFG_MODE_RMIIP;
++ break;
++ case PHY_INTERFACE_MODE_RGMII:
++ /* RGMII MAC mode, connected to external PHY */
++ miimode = MII_CFG_MODE_RGMII;
++ 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 */
++ miimode = MII_CFG_MODE_MIIM;
++ 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 */
++ miimode = MII_CFG_MODE_MIIM;
++ break;
++ case PHY_INTERFACE_MODE_RGMII:
++ /* RGMII MAC mode, connected to external PHY */
++ miimode = MII_CFG_MODE_RGMII;
++ break;
++ default:
++ break;
++ }
++ break;
++ default:
++ break;
++ }
++
++ ltq_mii_w32_mask(MII_CFG_MODE_MASK, miimode | MII_CFG_EN,
++ MII_CFG(port->num));
++}
++
++static int xrx200_init(struct net_device *dev)
++{
++ struct xrx200_priv *priv = netdev_priv(dev);
++ struct sockaddr mac;
++ int err, i;
++
++#ifndef SW_POLLING
++ unsigned int reg = 0;
++
++ /* enable auto polling */
++ for (i = 0; i < priv->num_port; i++)
++ reg |= BIT(priv->port[i].num);
++ ltq_mdio_w32(reg, MDIO_CLK_CFG0);
++ ltq_mdio_w32(MDIO1_25MHZ, MDIO_CLK_CFG1);
++#endif
++
++ /* setup each port */
++ for (i = 0; i < priv->num_port; i++)
++ xrx200_port_config(priv, &priv->port[i]);
++
++ memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
++ if (!is_valid_ether_addr(mac.sa_data)) {
++ pr_warn("net-xrx200: invalid MAC, using random\n");
++ eth_random_addr(mac.sa_data);
++ dev->addr_assign_type |= NET_ADDR_RANDOM;
++ }
++
++ err = eth_mac_addr(dev, &mac);
++ if (err)
++ goto err_netdev;
++
++ for (i = 0; i < priv->num_port; i++)
++ if (xrx200_mdio_probe(dev, &priv->port[i]))
++ pr_warn("xrx200-mdio: probing phy of port %d failed\n",
++ priv->port[i].num);
++
++ return 0;
++
++err_netdev:
++ unregister_netdev(dev);
++ free_netdev(dev);
++ return err;
++}
++
++static void xrx200_pci_microcode(void)
++{
++ int i;
++
++ ltq_switch_w32_mask(PCE_TBL_CFG_ADDR_MASK | PCE_TBL_CFG_ADWR_MASK,
++ PCE_TBL_CFG_ADWR, PCE_TBL_CTRL);
++ ltq_switch_w32(0, PCE_TBL_MASK);
++
++ for (i = 0; i < ARRAY_SIZE(pce_microcode); i++) {
++ ltq_switch_w32(i, PCE_TBL_ADDR);
++ ltq_switch_w32(pce_microcode[i].val[3], PCE_TBL_VAL(0));
++ ltq_switch_w32(pce_microcode[i].val[2], PCE_TBL_VAL(1));
++ ltq_switch_w32(pce_microcode[i].val[1], PCE_TBL_VAL(2));
++ ltq_switch_w32(pce_microcode[i].val[0], PCE_TBL_VAL(3));
++
++ // start the table access:
++ ltq_switch_w32_mask(0, PCE_TBL_BUSY, PCE_TBL_CTRL);
++ while (ltq_switch_r32(PCE_TBL_CTRL) & PCE_TBL_BUSY);
++ }
++
++ /* tell the switch that the microcode is loaded */
++ ltq_switch_w32_mask(0, BIT(3), PCE_GCTRL_REG(0));
++}
++
++static void xrx200_hw_init(struct xrx200_hw *hw)
++{
++ int i;
++
++ /* enable clock gate */
++ clk_enable(hw->clk);
++
++ ltq_switch_w32(1, 0);
++ mdelay(100);
++ ltq_switch_w32(0, 0);
++ /*
++ * TODO: we should really disbale all phys/miis here and explicitly
++ * enable them in the device secific init function
++ */
++
++ /* disable port fetch/store dma */
++ for (i = 0; i < 7; i++ ) {
++ ltq_switch_w32(0, FDMA_PCTRLx(i));
++ ltq_switch_w32(0, SDMA_PCTRLx(i));
++ }
++
++ /* enable Switch */
++ ltq_mdio_w32_mask(0, MDIO_GLOB_ENABLE, MDIO_GLOB);
++
++ /* load the pce microcode */
++ xrx200_pci_microcode();
++
++ /* Default unknown Broadcat/Multicast/Unicast port maps */
++ ltq_switch_w32(0x7f, PCE_PMAP1);
++ ltq_switch_w32(0x7f, PCE_PMAP2);
++ ltq_switch_w32(0x7f, PCE_PMAP3);
++
++ /* RMON Counter Enable for all physical ports */
++ for (i = 0; i < 7; i++)
++ ltq_switch_w32(0x1, BM_PCFG(i));
++
++ /* disable auto polling */
++ ltq_mdio_w32(0x0, MDIO_CLK_CFG0);
++
++ /* enable port statistic counters */
++ for (i = 0; i < 7; i++)
++ ltq_switch_w32(0x1, BM_PCFGx(i));
++
++ /* set IPG to 12 */
++ ltq_pmac_w32_mask(PMAC_IPG_MASK, 0xb, PMAC_RX_IPG);
++
++#ifdef SW_ROUTING
++ /* enable status header, enable CRC */
++ ltq_pmac_w32_mask(0,
++ PMAC_HD_CTL_RST | PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS | PMAC_HD_CTL_AC,
++ PMAC_HD_CTL);
++#else
++ /* disable status header, enable CRC */
++ ltq_pmac_w32_mask(PMAC_HD_CTL_AST | PMAC_HD_CTL_RXSH | PMAC_HD_CTL_AS,
++ PMAC_HD_CTL_AC,
++ PMAC_HD_CTL);
++#endif
++
++ /* enable port fetch/store dma */
++ for (i = 0; i < 7; i++ ) {
++ ltq_switch_w32_mask(0, 0x01, FDMA_PCTRLx(i));
++ ltq_switch_w32_mask(0, 0x01, SDMA_PCTRLx(i));
++ ltq_switch_w32_mask(0, PCE_INGRESS, PCE_PCTRL_REG(i, 0));
++ }
++
++ /* enable special tag insertion on cpu port */
++ ltq_switch_w32_mask(0, 0x02, FDMA_PCTRLx(6));
++ ltq_switch_w32_mask(0, PCE_INGRESS, PCE_PCTRL_REG(6, 0));
++ ltq_switch_w32_mask(0, BIT(3), MAC_CTRL_REG(6, 2));
++ ltq_switch_w32(1518 + 8 + 4 * 2, MAC_FLEN_REG);
++}
++
++static void xrx200_hw_cleanup(struct xrx200_hw *hw)
++{
++ int i;
++
++ /* disable the switch */
++ ltq_mdio_w32_mask(MDIO_GLOB_ENABLE, 0, MDIO_GLOB);
++
++ /* free the channels and IRQs */
++ for (i = 0; i < 2; i++) {
++ ltq_dma_free(&hw->chan[i].dma);
++ if (hw->chan[i].dma.irq)
++ free_irq(hw->chan[i].dma.irq, hw);
++ }
++
++ /* free the allocated RX ring */
++ for (i = 0; i < LTQ_DESC_NUM; i++)
++ dev_kfree_skb_any(hw->chan[XRX200_DMA_RX].skb[i]);
++
++ /* clear the mdio bus */
++ mdiobus_unregister(hw->mii_bus);
++ mdiobus_free(hw->mii_bus);
++
++ /* release the clock */
++ clk_disable(hw->clk);
++ clk_put(hw->clk);
++}
++
++static int xrx200_of_mdio(struct xrx200_hw *hw, struct device_node *np)
++{
++ int i;
++ hw->mii_bus = mdiobus_alloc();
++ if (!hw->mii_bus)
++ return -ENOMEM;
++
++ hw->mii_bus->read = xrx200_mdio_rd;
++ hw->mii_bus->write = xrx200_mdio_wr;
++ hw->mii_bus->name = "lantiq,xrx200-mdio";
++ snprintf(hw->mii_bus->id, MII_BUS_ID_SIZE, "%x", 0);
++
++ if (of_mdiobus_register(hw->mii_bus, np)) {
++ mdiobus_free(hw->mii_bus);
++ return -ENXIO;
++ }
++
++ return 0;
++}
++
++static void xrx200_of_port(struct xrx200_priv *priv, struct device_node *port)
++{
++ const __be32 *addr, *id = of_get_property(port, "reg", NULL);
++ struct xrx200_port *p = &priv->port[priv->num_port];
++
++ if (!id)
++ return;
++
++ memset(p, 0, sizeof(struct xrx200_port));
++ p->phy_node = of_parse_phandle(port, "phy-handle", 0);
++ addr = of_get_property(p->phy_node, "reg", NULL);
++ if (!addr)
++ return;
++
++ p->num = *id;
++ p->phy_addr = *addr;
++ p->phy_if = of_get_phy_mode(port);
++ if (p->phy_addr > 0x10)
++ p->flags = XRX200_PORT_TYPE_MAC;
++ else
++ p->flags = XRX200_PORT_TYPE_PHY;
++ priv->num_port++;
++
++ p->gpio = of_get_gpio_flags(port, 0, &p->gpio_flags);
++ if (gpio_is_valid(p->gpio))
++ if (!gpio_request(p->gpio, "phy-reset")) {
++ gpio_direction_output(p->gpio,
++ (p->gpio_flags & OF_GPIO_ACTIVE_LOW) ? (1) : (0));
++ udelay(100);
++ gpio_set_value(p->gpio, (p->gpio_flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1));
++ }
++ /* is this port a wan port ? */
++ if (priv->wan)
++ priv->hw->wan_map |= BIT(p->num);
++
++ priv->port_map |= BIT(p->num);
++
++ /* store the port id in the hw struct so we can map ports -> devices */
++ priv->hw->port_map[p->num] = priv->hw->num_devs;
++}
++
++static const struct net_device_ops xrx200_netdev_ops = {
++ .ndo_init = xrx200_init,
++ .ndo_open = xrx200_open,
++ .ndo_stop = xrx200_close,
++ .ndo_start_xmit = xrx200_start_xmit,
++ .ndo_set_mac_address = eth_mac_addr,
++ .ndo_validate_addr = eth_validate_addr,
++ .ndo_change_mtu = eth_change_mtu,
++ .ndo_get_stats = xrx200_get_stats,
++ .ndo_tx_timeout = xrx200_tx_timeout,
++};
++
++static void xrx200_of_iface(struct xrx200_hw *hw, struct device_node *iface)
++{
++ struct xrx200_priv *priv;
++ struct device_node *port;
++ const __be32 *wan;
++
++ /* alloc the network device */
++ hw->devs[hw->num_devs] = alloc_etherdev(sizeof(struct xrx200_priv));
++ if (!hw->devs[hw->num_devs])
++ return;
++
++ /* setup the network device */
++ strcpy(hw->devs[hw->num_devs]->name, "eth%d");
++ hw->devs[hw->num_devs]->netdev_ops = &xrx200_netdev_ops;
++ hw->devs[hw->num_devs]->watchdog_timeo = XRX200_TX_TIMEOUT;
++ hw->devs[hw->num_devs]->needed_headroom = XRX200_HEADROOM;
++
++ /* setup our private data */
++ priv = netdev_priv(hw->devs[hw->num_devs]);
++ priv->hw = hw;
++ priv->mac = of_get_mac_address(iface);
++ priv->id = hw->num_devs;
++
++ /* is this the wan interface ? */
++ wan = of_get_property(iface, "lantiq,wan", NULL);
++ if (wan && (*wan == 1))
++ priv->wan = 1;
++
++ /* load the ports that are part of the interface */
++ for_each_child_of_node(iface, port)
++ if (of_device_is_compatible(port, "lantiq,xrx200-pdi-port"))
++ xrx200_of_port(priv, port);
++
++ /* register the actual device */
++ if (!register_netdev(hw->devs[hw->num_devs]))
++ hw->num_devs++;
++}
++
++static struct xrx200_hw xrx200_hw;
++
++static int xrx200_probe(struct platform_device *pdev)
++{
++ struct resource *res[4];
++ struct device_node *mdio_np, *iface_np;
++ int i;
++
++ /* load the memory ranges */
++ for (i = 0; i < 4; i++) {
++ res[i] = platform_get_resource(pdev, IORESOURCE_MEM, i);
++ if (!res[i]) {
++ dev_err(&pdev->dev, "failed to get resources\n");
++ return -ENOENT;
++ }
++ }
++ xrx200_switch_membase = devm_request_and_ioremap(&pdev->dev, res[0]);
++ xrx200_mdio_membase = devm_request_and_ioremap(&pdev->dev, res[1]);
++ xrx200_mii_membase = devm_request_and_ioremap(&pdev->dev, res[2]);
++ xrx200_pmac_membase = devm_request_and_ioremap(&pdev->dev, res[3]);
++ if (!xrx200_switch_membase || !xrx200_mdio_membase ||
++ !xrx200_mii_membase || !xrx200_pmac_membase) {
++ dev_err(&pdev->dev, "failed to request and remap io ranges \n");
++ return -ENOMEM;
++ }
++
++ /* get the clock */
++ xrx200_hw.clk = clk_get(&pdev->dev, NULL);
++ if (IS_ERR(xrx200_hw.clk)) {
++ dev_err(&pdev->dev, "failed to get clock\n");
++ return PTR_ERR(xrx200_hw.clk);
++ }
++
++ /* bring up the dma engine and IP core */
++ spin_lock_init(&xrx200_hw.lock);
++ xrx200_dma_init(&xrx200_hw);
++ xrx200_hw_init(&xrx200_hw);
++
++ /* bring up the mdio bus */
++ mdio_np = of_find_compatible_node(pdev->dev.of_node, NULL,
++ "lantiq,xrx200-mdio");
++ if (mdio_np)
++ if (xrx200_of_mdio(&xrx200_hw, mdio_np))
++ dev_err(&pdev->dev, "mdio probe failed\n");
++
++ /* load the interfaces */
++ for_each_child_of_node(pdev->dev.of_node, iface_np)
++ if (of_device_is_compatible(iface_np, "lantiq,xrx200-pdi")) {
++ if (xrx200_hw.num_devs < XRX200_MAX_DEV)
++ xrx200_of_iface(&xrx200_hw, iface_np);
++ else
++ dev_err(&pdev->dev,
++ "only %d interfaces allowed\n",
++ XRX200_MAX_DEV);
++ }
++
++ if (!xrx200_hw.num_devs) {
++ xrx200_hw_cleanup(&xrx200_hw);
++ dev_err(&pdev->dev, "failed to load interfaces\n");
++ return -ENOENT;
++ }
++
++ /* set wan port mask */
++ ltq_pmac_w32(xrx200_hw.wan_map, PMAC_EWAN);
++
++ for (i = 0; i < xrx200_hw.num_devs; i++) {
++ xrx200_hw.chan[XRX200_DMA_RX].devs[i] = xrx200_hw.devs[i];
++ xrx200_hw.chan[XRX200_DMA_TX].devs[i] = xrx200_hw.devs[i];
++ }
++
++ /* setup NAPI */
++ init_dummy_netdev(&xrx200_hw.chan[XRX200_DMA_RX].dummy_dev);
++ init_dummy_netdev(&xrx200_hw.chan[XRX200_DMA_TX].dummy_dev);
++ netif_napi_add(&xrx200_hw.chan[XRX200_DMA_RX].dummy_dev,
++ &xrx200_hw.chan[XRX200_DMA_RX].napi, xrx200_poll_rx, 32);
++ netif_napi_add(&xrx200_hw.chan[XRX200_DMA_TX].dummy_dev,
++ &xrx200_hw.chan[XRX200_DMA_TX].napi, xrx200_poll_tx, 8);
++
++ platform_set_drvdata(pdev, &xrx200_hw);
++
++ return 0;
++}
++
++static int xrx200_remove(struct platform_device *pdev)
++{
++ struct net_device *dev = platform_get_drvdata(pdev);
++ struct xrx200_priv *priv;
++
++ if (!dev)
++ return 0;
++
++ priv = netdev_priv(dev);
++
++ /* free stack related instances */
++ netif_stop_queue(dev);
++ netif_napi_del(&xrx200_hw.chan[XRX200_DMA_RX].napi);
++ netif_napi_del(&xrx200_hw.chan[XRX200_DMA_TX].napi);
++
++ /* shut down hardware */
++ xrx200_hw_cleanup(&xrx200_hw);
++
++ /* remove the actual device */
++ unregister_netdev(dev);
++ free_netdev(dev);
++
++ return 0;
++}
++
++static const struct of_device_id xrx200_match[] = {
++ { .compatible = "lantiq,xrx200-net" },
++ {},
++};
++MODULE_DEVICE_TABLE(of, xrx200_match);
++
++static struct platform_driver xrx200_driver = {
++ .probe = xrx200_probe,
++ .remove = xrx200_remove,
++ .driver = {
++ .name = "lantiq,xrx200-net",
++ .of_match_table = xrx200_match,
++ .owner = THIS_MODULE,
++ },
++};
++
++module_platform_driver(xrx200_driver);
++
++MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
++MODULE_DESCRIPTION("Lantiq SoC XRX200 ethernet");
++MODULE_LICENSE("GPL");
+--
+1.7.10.4
+