diff options
Diffstat (limited to 'target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch')
| -rw-r--r-- | target/linux/lantiq/patches-3.8/0025-NET-MIPS-lantiq-adds-xrx200-net.patch | 1426 |
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 0000000..bc2b70d --- /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 + |