diff options
author | John Crispin <john@openwrt.org> | 2012-08-03 08:53:02 +0000 |
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committer | John Crispin <john@openwrt.org> | 2012-08-03 08:53:02 +0000 |
commit | 060b161ca6f18e0e022da1483723ad2e9335bca7 (patch) | |
tree | dc652c26bed4d4b79395a6daafaa5da59000e940 /target/linux/lantiq/patches-3.3/0039-NET-adds-driver-for-lantiq-vr9-ethernet.patch | |
parent | 162e272b4b2b770cd5eb97006bb4ff99b09bd8de (diff) | |
download | master-31e0f0ae-060b161ca6f18e0e022da1483723ad2e9335bca7.tar.gz master-31e0f0ae-060b161ca6f18e0e022da1483723ad2e9335bca7.tar.bz2 master-31e0f0ae-060b161ca6f18e0e022da1483723ad2e9335bca7.zip |
cleanup patches
SVN-Revision: 32953
Diffstat (limited to 'target/linux/lantiq/patches-3.3/0039-NET-adds-driver-for-lantiq-vr9-ethernet.patch')
-rw-r--r-- | target/linux/lantiq/patches-3.3/0039-NET-adds-driver-for-lantiq-vr9-ethernet.patch | 1454 |
1 files changed, 0 insertions, 1454 deletions
diff --git a/target/linux/lantiq/patches-3.3/0039-NET-adds-driver-for-lantiq-vr9-ethernet.patch b/target/linux/lantiq/patches-3.3/0039-NET-adds-driver-for-lantiq-vr9-ethernet.patch deleted file mode 100644 index 8b662871b8..0000000000 --- a/target/linux/lantiq/patches-3.3/0039-NET-adds-driver-for-lantiq-vr9-ethernet.patch +++ /dev/null @@ -1,1454 +0,0 @@ -From 239505c96aa66b4280b7726850235dcb707d2d91 Mon Sep 17 00:00:00 2001 -From: John Crispin <blogic@openwrt.org> -Date: Fri, 9 Mar 2012 19:03:40 +0100 -Subject: [PATCH 39/70] 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 - ---- 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 ---- 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 *e - platform_device_register(<q_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(<q_vrx200); -+} ---- 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 ---- a/drivers/net/ethernet/Kconfig -+++ b/drivers/net/ethernet/Kconfig -@@ -85,6 +85,12 @@ 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" ---- 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-$(CONFIG_LANTIQ_VRX200) += lantiq_vrx200.o - obj-$(CONFIG_NET_VENDOR_MARVELL) += marvell/ - obj-$(CONFIG_NET_VENDOR_MELLANOX) += mellanox/ - obj-$(CONFIG_NET_VENDOR_MICREL) += micrel/ ---- /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 <q_ethsw_mdio_pdi_regs->phy_addr_0; -+ case 1: -+ return <q_ethsw_mdio_pdi_regs->phy_addr_1; -+ case 2: -+ return <q_ethsw_mdio_pdi_regs->phy_addr_2; -+ case 3: -+ return <q_ethsw_mdio_pdi_regs->phy_addr_3; -+ case 4: -+ return <q_ethsw_mdio_pdi_regs->phy_addr_4; -+ case 5: -+ return <q_ethsw_mdio_pdi_regs->phy_addr_5; -+ } -+ -+ return NULL; -+} -+ -+static void *ltq_eth_mii_cfg_reg(int num) -+{ -+ switch (num) { -+ case 0: -+ return <q_ethsw_mii_pdi_regs->mii_cfg0; -+ case 1: -+ return <q_ethsw_mii_pdi_regs->mii_cfg1; -+ case 2: -+ return <q_ethsw_mii_pdi_regs->mii_cfg2; -+ case 3: -+ return <q_ethsw_mii_pdi_regs->mii_cfg3; -+ case 4: -+ return <q_ethsw_mii_pdi_regs->mii_cfg4; -+ case 5: -+ return <q_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 = <q_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 = <q_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(<q_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(<q_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(<q_ethsw_mdio_pdi_regs->glob_ctrl, -+ LTQ_ETHSW_GLOB_CTRL_SE); -+ -+ /* Disable MDIO auto-polling for all ports */ -+ dbg_ltq_writel(<q_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(<q_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(<q_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(<q_ethsw_mdio_pdi_regs->mdio_write, val); -+ dbg_ltq_writel(<q_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(<q_ethsw_mdio_pdi_regs->mdio_ctrl, acc.val); -+ -+ ret = ltq_mdio_poll(bus); -+ if (ret) -+ goto timeout; -+ -+ ret = ltq_r32(<q_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), <q_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 = <q_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 = <q_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"); |