diff options
Diffstat (limited to 'target/mips/mikrotik-rb4xx/patches/3.14.26/0003-net-add-ag71xx-mac-driver.patch')
| -rw-r--r-- | target/mips/mikrotik-rb4xx/patches/3.14.26/0003-net-add-ag71xx-mac-driver.patch | 4245 |
1 files changed, 4245 insertions, 0 deletions
diff --git a/target/mips/mikrotik-rb4xx/patches/3.14.26/0003-net-add-ag71xx-mac-driver.patch b/target/mips/mikrotik-rb4xx/patches/3.14.26/0003-net-add-ag71xx-mac-driver.patch new file mode 100644 index 000000000..1915c184c --- /dev/null +++ b/target/mips/mikrotik-rb4xx/patches/3.14.26/0003-net-add-ag71xx-mac-driver.patch @@ -0,0 +1,4245 @@ +From c5eb03f91f9185f4813431692f36db3862716a35 Mon Sep 17 00:00:00 2001 +From: Phil Sutter <phil@nwl.cc> +Date: Tue, 13 May 2014 00:12:37 +0200 +Subject: [PATCH] net: add ag71xx mac driver + +--- + arch/mips/include/asm/mach-ath79/ag71xx_platform.h | 65 + + drivers/net/ethernet/atheros/Kconfig | 2 + + drivers/net/ethernet/atheros/Makefile | 1 + + drivers/net/ethernet/atheros/ag71xx/Kconfig | 33 + + drivers/net/ethernet/atheros/ag71xx/Makefile | 15 + + drivers/net/ethernet/atheros/ag71xx/ag71xx.h | 476 +++++++ + .../net/ethernet/atheros/ag71xx/ag71xx_ar7240.c | 1202 ++++++++++++++++++ + .../net/ethernet/atheros/ag71xx/ag71xx_ar8216.c | 44 + + .../net/ethernet/atheros/ag71xx/ag71xx_debugfs.c | 284 +++++ + .../net/ethernet/atheros/ag71xx/ag71xx_ethtool.c | 124 ++ + drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c | 1325 ++++++++++++++++++++ + drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c | 318 +++++ + drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c | 235 ++++ + 13 files changed, 4124 insertions(+) + create mode 100644 arch/mips/include/asm/mach-ath79/ag71xx_platform.h + create mode 100644 drivers/net/ethernet/atheros/ag71xx/Kconfig + create mode 100644 drivers/net/ethernet/atheros/ag71xx/Makefile + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx.h + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c + create mode 100644 drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c + +diff --git a/arch/mips/include/asm/mach-ath79/ag71xx_platform.h b/arch/mips/include/asm/mach-ath79/ag71xx_platform.h +new file mode 100644 +index 0000000..d46dc4e +--- /dev/null ++++ b/arch/mips/include/asm/mach-ath79/ag71xx_platform.h +@@ -0,0 +1,65 @@ ++/* ++ * Atheros AR71xx SoC specific platform data definitions ++ * ++ * Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * 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. ++ */ ++ ++#ifndef __ASM_MACH_ATH79_PLATFORM_H ++#define __ASM_MACH_ATH79_PLATFORM_H ++ ++#include <linux/if_ether.h> ++#include <linux/skbuff.h> ++#include <linux/phy.h> ++#include <linux/spi/spi.h> ++ ++struct ag71xx_switch_platform_data { ++ u8 phy4_mii_en:1; ++ u8 phy_poll_mask; ++}; ++ ++struct ag71xx_platform_data { ++ phy_interface_t phy_if_mode; ++ u32 phy_mask; ++ int speed; ++ int duplex; ++ u32 reset_bit; ++ u8 mac_addr[ETH_ALEN]; ++ struct device *mii_bus_dev; ++ ++ u8 has_gbit:1; ++ u8 is_ar91xx:1; ++ u8 is_ar7240:1; ++ u8 is_ar724x:1; ++ u8 has_ar8216:1; ++ ++ struct ag71xx_switch_platform_data *switch_data; ++ ++ void (*ddr_flush)(void); ++ void (*set_speed)(int speed); ++ ++ u32 fifo_cfg1; ++ u32 fifo_cfg2; ++ u32 fifo_cfg3; ++ ++ unsigned int max_frame_len; ++ unsigned int desc_pktlen_mask; ++}; ++ ++struct ag71xx_mdio_platform_data { ++ u32 phy_mask; ++ u8 builtin_switch:1; ++ u8 is_ar7240:1; ++ u8 is_ar9330:1; ++ u8 is_ar934x:1; ++ unsigned long mdio_clock; ++ unsigned long ref_clock; ++ ++ void (*reset)(struct mii_bus *bus); ++}; ++ ++#endif /* __ASM_MACH_ATH79_PLATFORM_H */ +diff --git a/drivers/net/ethernet/atheros/Kconfig b/drivers/net/ethernet/atheros/Kconfig +index 58ad37c..1fae572 100644 +--- a/drivers/net/ethernet/atheros/Kconfig ++++ b/drivers/net/ethernet/atheros/Kconfig +@@ -80,4 +80,6 @@ config ALX + To compile this driver as a module, choose M here. The module + will be called alx. + ++source drivers/net/ethernet/atheros/ag71xx/Kconfig ++ + endif # NET_VENDOR_ATHEROS +diff --git a/drivers/net/ethernet/atheros/Makefile b/drivers/net/ethernet/atheros/Makefile +index 5cf1c65..d1c5a49 100644 +--- a/drivers/net/ethernet/atheros/Makefile ++++ b/drivers/net/ethernet/atheros/Makefile +@@ -2,6 +2,7 @@ + # Makefile for the Atheros network device drivers. + # + ++obj-$(CONFIG_AG71XX) += ag71xx/ + obj-$(CONFIG_ATL1) += atlx/ + obj-$(CONFIG_ATL2) += atlx/ + obj-$(CONFIG_ATL1E) += atl1e/ +diff --git a/drivers/net/ethernet/atheros/ag71xx/Kconfig b/drivers/net/ethernet/atheros/ag71xx/Kconfig +new file mode 100644 +index 0000000..42d544f +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/Kconfig +@@ -0,0 +1,33 @@ ++config AG71XX ++ tristate "Atheros AR7XXX/AR9XXX built-in ethernet mac support" ++ depends on ATH79 ++ select PHYLIB ++ help ++ If you wish to compile a kernel for AR7XXX/91XXX and enable ++ ethernet support, then you should always answer Y to this. ++ ++if AG71XX ++ ++config AG71XX_DEBUG ++ bool "Atheros AR71xx built-in ethernet driver debugging" ++ default n ++ help ++ Atheros AR71xx built-in ethernet driver debugging messages. ++ ++config AG71XX_DEBUG_FS ++ bool "Atheros AR71xx built-in ethernet driver debugfs support" ++ depends on DEBUG_FS ++ default n ++ help ++ Say Y, if you need access to various statistics provided by ++ the ag71xx driver. ++ ++config AG71XX_AR8216_SUPPORT ++ bool "special support for the Atheros AR8216 switch" ++ default n ++ default y if ATH79_MACH_WNR2000 || ATH79_MACH_MZK_W04NU ++ help ++ Say 'y' here if you want to enable special support for the ++ Atheros AR8216 switch found on some boards. ++ ++endif +diff --git a/drivers/net/ethernet/atheros/ag71xx/Makefile b/drivers/net/ethernet/atheros/ag71xx/Makefile +new file mode 100644 +index 0000000..b3ec408 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/Makefile +@@ -0,0 +1,15 @@ ++# ++# Makefile for the Atheros AR71xx built-in ethernet macs ++# ++ ++ag71xx-y += ag71xx_main.o ++ag71xx-y += ag71xx_ethtool.o ++ag71xx-y += ag71xx_phy.o ++ag71xx-y += ag71xx_mdio.o ++ag71xx-y += ag71xx_ar7240.o ++ ++ag71xx-$(CONFIG_AG71XX_DEBUG_FS) += ag71xx_debugfs.o ++ag71xx-$(CONFIG_AG71XX_AR8216_SUPPORT) += ag71xx_ar8216.o ++ ++obj-$(CONFIG_AG71XX) += ag71xx.o ++ +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx.h b/drivers/net/ethernet/atheros/ag71xx/ag71xx.h +new file mode 100644 +index 0000000..f6d85b9 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx.h +@@ -0,0 +1,476 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#ifndef __AG71XX_H ++#define __AG71XX_H ++ ++#include <linux/kernel.h> ++#include <linux/version.h> ++#include <linux/module.h> ++#include <linux/init.h> ++#include <linux/types.h> ++#include <linux/random.h> ++#include <linux/spinlock.h> ++#include <linux/interrupt.h> ++#include <linux/platform_device.h> ++#include <linux/ethtool.h> ++#include <linux/etherdevice.h> ++#include <linux/if_vlan.h> ++#include <linux/phy.h> ++#include <linux/skbuff.h> ++#include <linux/dma-mapping.h> ++#include <linux/workqueue.h> ++ ++#include <linux/bitops.h> ++ ++#include <asm/mach-ath79/ar71xx_regs.h> ++#include <asm/mach-ath79/ath79.h> ++#include <asm/mach-ath79/ag71xx_platform.h> ++ ++#define AG71XX_DRV_NAME "ag71xx" ++#define AG71XX_DRV_VERSION "0.5.35" ++ ++#define AG71XX_NAPI_WEIGHT 64 ++#define AG71XX_OOM_REFILL (1 + HZ/10) ++ ++#define AG71XX_INT_ERR (AG71XX_INT_RX_BE | AG71XX_INT_TX_BE) ++#define AG71XX_INT_TX (AG71XX_INT_TX_PS) ++#define AG71XX_INT_RX (AG71XX_INT_RX_PR | AG71XX_INT_RX_OF) ++ ++#define AG71XX_INT_POLL (AG71XX_INT_RX | AG71XX_INT_TX) ++#define AG71XX_INT_INIT (AG71XX_INT_ERR | AG71XX_INT_POLL) ++ ++#define AG71XX_TX_MTU_LEN 1540 ++ ++#define AG71XX_TX_RING_SIZE_DEFAULT 32 ++#define AG71XX_RX_RING_SIZE_DEFAULT 128 ++ ++#define AG71XX_TX_RING_SIZE_MAX 32 ++#define AG71XX_RX_RING_SIZE_MAX 128 ++ ++#ifdef CONFIG_AG71XX_DEBUG ++#define DBG(fmt, args...) pr_debug(fmt, ## args) ++#else ++#define DBG(fmt, args...) do {} while (0) ++#endif ++ ++#define ag71xx_assert(_cond) \ ++do { \ ++ if (_cond) \ ++ break; \ ++ printk("%s,%d: assertion failed\n", __FILE__, __LINE__); \ ++ BUG(); \ ++} while (0) ++ ++struct ag71xx_desc { ++ u32 data; ++ u32 ctrl; ++#define DESC_EMPTY BIT(31) ++#define DESC_MORE BIT(24) ++#define DESC_PKTLEN_M 0xfff ++ u32 next; ++ u32 pad; ++} __attribute__((aligned(4))); ++ ++struct ag71xx_buf { ++ union { ++ struct sk_buff *skb; ++ void *rx_buf; ++ }; ++ struct ag71xx_desc *desc; ++ union { ++ dma_addr_t dma_addr; ++ unsigned long timestamp; ++ }; ++ unsigned int len; ++}; ++ ++struct ag71xx_ring { ++ struct ag71xx_buf *buf; ++ u8 *descs_cpu; ++ dma_addr_t descs_dma; ++ unsigned int desc_size; ++ unsigned int curr; ++ unsigned int dirty; ++ unsigned int size; ++}; ++ ++struct ag71xx_mdio { ++ struct mii_bus *mii_bus; ++ int mii_irq[PHY_MAX_ADDR]; ++ void __iomem *mdio_base; ++ struct ag71xx_mdio_platform_data *pdata; ++}; ++ ++struct ag71xx_int_stats { ++ unsigned long rx_pr; ++ unsigned long rx_be; ++ unsigned long rx_of; ++ unsigned long tx_ps; ++ unsigned long tx_be; ++ unsigned long tx_ur; ++ unsigned long total; ++}; ++ ++struct ag71xx_napi_stats { ++ unsigned long napi_calls; ++ unsigned long rx_count; ++ unsigned long rx_packets; ++ unsigned long rx_packets_max; ++ unsigned long tx_count; ++ unsigned long tx_packets; ++ unsigned long tx_packets_max; ++ ++ unsigned long rx[AG71XX_NAPI_WEIGHT + 1]; ++ unsigned long tx[AG71XX_NAPI_WEIGHT + 1]; ++}; ++ ++struct ag71xx_debug { ++ struct dentry *debugfs_dir; ++ ++ struct ag71xx_int_stats int_stats; ++ struct ag71xx_napi_stats napi_stats; ++}; ++ ++struct ag71xx { ++ void __iomem *mac_base; ++ ++ spinlock_t lock; ++ struct platform_device *pdev; ++ struct net_device *dev; ++ struct napi_struct napi; ++ u32 msg_enable; ++ ++ struct ag71xx_desc *stop_desc; ++ dma_addr_t stop_desc_dma; ++ ++ struct ag71xx_ring rx_ring; ++ struct ag71xx_ring tx_ring; ++ ++ struct mii_bus *mii_bus; ++ struct phy_device *phy_dev; ++ void *phy_priv; ++ ++ unsigned int link; ++ unsigned int speed; ++ int duplex; ++ ++ unsigned int max_frame_len; ++ unsigned int desc_pktlen_mask; ++ unsigned int rx_buf_size; ++ ++ struct work_struct restart_work; ++ struct delayed_work link_work; ++ struct timer_list oom_timer; ++ ++#ifdef CONFIG_AG71XX_DEBUG_FS ++ struct ag71xx_debug debug; ++#endif ++}; ++ ++extern struct ethtool_ops ag71xx_ethtool_ops; ++void ag71xx_link_adjust(struct ag71xx *ag); ++ ++int ag71xx_mdio_driver_init(void) __init; ++void ag71xx_mdio_driver_exit(void); ++ ++int ag71xx_phy_connect(struct ag71xx *ag); ++void ag71xx_phy_disconnect(struct ag71xx *ag); ++void ag71xx_phy_start(struct ag71xx *ag); ++void ag71xx_phy_stop(struct ag71xx *ag); ++ ++static inline struct ag71xx_platform_data *ag71xx_get_pdata(struct ag71xx *ag) ++{ ++ return ag->pdev->dev.platform_data; ++} ++ ++static inline int ag71xx_desc_empty(struct ag71xx_desc *desc) ++{ ++ return (desc->ctrl & DESC_EMPTY) != 0; ++} ++ ++/* Register offsets */ ++#define AG71XX_REG_MAC_CFG1 0x0000 ++#define AG71XX_REG_MAC_CFG2 0x0004 ++#define AG71XX_REG_MAC_IPG 0x0008 ++#define AG71XX_REG_MAC_HDX 0x000c ++#define AG71XX_REG_MAC_MFL 0x0010 ++#define AG71XX_REG_MII_CFG 0x0020 ++#define AG71XX_REG_MII_CMD 0x0024 ++#define AG71XX_REG_MII_ADDR 0x0028 ++#define AG71XX_REG_MII_CTRL 0x002c ++#define AG71XX_REG_MII_STATUS 0x0030 ++#define AG71XX_REG_MII_IND 0x0034 ++#define AG71XX_REG_MAC_IFCTL 0x0038 ++#define AG71XX_REG_MAC_ADDR1 0x0040 ++#define AG71XX_REG_MAC_ADDR2 0x0044 ++#define AG71XX_REG_FIFO_CFG0 0x0048 ++#define AG71XX_REG_FIFO_CFG1 0x004c ++#define AG71XX_REG_FIFO_CFG2 0x0050 ++#define AG71XX_REG_FIFO_CFG3 0x0054 ++#define AG71XX_REG_FIFO_CFG4 0x0058 ++#define AG71XX_REG_FIFO_CFG5 0x005c ++#define AG71XX_REG_FIFO_RAM0 0x0060 ++#define AG71XX_REG_FIFO_RAM1 0x0064 ++#define AG71XX_REG_FIFO_RAM2 0x0068 ++#define AG71XX_REG_FIFO_RAM3 0x006c ++#define AG71XX_REG_FIFO_RAM4 0x0070 ++#define AG71XX_REG_FIFO_RAM5 0x0074 ++#define AG71XX_REG_FIFO_RAM6 0x0078 ++#define AG71XX_REG_FIFO_RAM7 0x007c ++ ++#define AG71XX_REG_TX_CTRL 0x0180 ++#define AG71XX_REG_TX_DESC 0x0184 ++#define AG71XX_REG_TX_STATUS 0x0188 ++#define AG71XX_REG_RX_CTRL 0x018c ++#define AG71XX_REG_RX_DESC 0x0190 ++#define AG71XX_REG_RX_STATUS 0x0194 ++#define AG71XX_REG_INT_ENABLE 0x0198 ++#define AG71XX_REG_INT_STATUS 0x019c ++ ++#define AG71XX_REG_FIFO_DEPTH 0x01a8 ++#define AG71XX_REG_RX_SM 0x01b0 ++#define AG71XX_REG_TX_SM 0x01b4 ++ ++#define MAC_CFG1_TXE BIT(0) /* Tx Enable */ ++#define MAC_CFG1_STX BIT(1) /* Synchronize Tx Enable */ ++#define MAC_CFG1_RXE BIT(2) /* Rx Enable */ ++#define MAC_CFG1_SRX BIT(3) /* Synchronize Rx Enable */ ++#define MAC_CFG1_TFC BIT(4) /* Tx Flow Control Enable */ ++#define MAC_CFG1_RFC BIT(5) /* Rx Flow Control Enable */ ++#define MAC_CFG1_LB BIT(8) /* Loopback mode */ ++#define MAC_CFG1_SR BIT(31) /* Soft Reset */ ++ ++#define MAC_CFG2_FDX BIT(0) ++#define MAC_CFG2_CRC_EN BIT(1) ++#define MAC_CFG2_PAD_CRC_EN BIT(2) ++#define MAC_CFG2_LEN_CHECK BIT(4) ++#define MAC_CFG2_HUGE_FRAME_EN BIT(5) ++#define MAC_CFG2_IF_1000 BIT(9) ++#define MAC_CFG2_IF_10_100 BIT(8) ++ ++#define FIFO_CFG0_WTM BIT(0) /* Watermark Module */ ++#define FIFO_CFG0_RXS BIT(1) /* Rx System Module */ ++#define FIFO_CFG0_RXF BIT(2) /* Rx Fabric Module */ ++#define FIFO_CFG0_TXS BIT(3) /* Tx System Module */ ++#define FIFO_CFG0_TXF BIT(4) /* Tx Fabric Module */ ++#define FIFO_CFG0_ALL (FIFO_CFG0_WTM | FIFO_CFG0_RXS | FIFO_CFG0_RXF \ ++ | FIFO_CFG0_TXS | FIFO_CFG0_TXF) ++ ++#define FIFO_CFG0_ENABLE_SHIFT 8 ++ ++#define FIFO_CFG4_DE BIT(0) /* Drop Event */ ++#define FIFO_CFG4_DV BIT(1) /* RX_DV Event */ ++#define FIFO_CFG4_FC BIT(2) /* False Carrier */ ++#define FIFO_CFG4_CE BIT(3) /* Code Error */ ++#define FIFO_CFG4_CR BIT(4) /* CRC error */ ++#define FIFO_CFG4_LM BIT(5) /* Length Mismatch */ ++#define FIFO_CFG4_LO BIT(6) /* Length out of range */ ++#define FIFO_CFG4_OK BIT(7) /* Packet is OK */ ++#define FIFO_CFG4_MC BIT(8) /* Multicast Packet */ ++#define FIFO_CFG4_BC BIT(9) /* Broadcast Packet */ ++#define FIFO_CFG4_DR BIT(10) /* Dribble */ ++#define FIFO_CFG4_LE BIT(11) /* Long Event */ ++#define FIFO_CFG4_CF BIT(12) /* Control Frame */ ++#define FIFO_CFG4_PF BIT(13) /* Pause Frame */ ++#define FIFO_CFG4_UO BIT(14) /* Unsupported Opcode */ ++#define FIFO_CFG4_VT BIT(15) /* VLAN tag detected */ ++#define FIFO_CFG4_FT BIT(16) /* Frame Truncated */ ++#define FIFO_CFG4_UC BIT(17) /* Unicast Packet */ ++ ++#define FIFO_CFG5_DE BIT(0) /* Drop Event */ ++#define FIFO_CFG5_DV BIT(1) /* RX_DV Event */ ++#define FIFO_CFG5_FC BIT(2) /* False Carrier */ ++#define FIFO_CFG5_CE BIT(3) /* Code Error */ ++#define FIFO_CFG5_LM BIT(4) /* Length Mismatch */ ++#define FIFO_CFG5_LO BIT(5) /* Length Out of Range */ ++#define FIFO_CFG5_OK BIT(6) /* Packet is OK */ ++#define FIFO_CFG5_MC BIT(7) /* Multicast Packet */ ++#define FIFO_CFG5_BC BIT(8) /* Broadcast Packet */ ++#define FIFO_CFG5_DR BIT(9) /* Dribble */ ++#define FIFO_CFG5_CF BIT(10) /* Control Frame */ ++#define FIFO_CFG5_PF BIT(11) /* Pause Frame */ ++#define FIFO_CFG5_UO BIT(12) /* Unsupported Opcode */ ++#define FIFO_CFG5_VT BIT(13) /* VLAN tag detected */ ++#define FIFO_CFG5_LE BIT(14) /* Long Event */ ++#define FIFO_CFG5_FT BIT(15) /* Frame Truncated */ ++#define FIFO_CFG5_16 BIT(16) /* unknown */ ++#define FIFO_CFG5_17 BIT(17) /* unknown */ ++#define FIFO_CFG5_SF BIT(18) /* Short Frame */ ++#define FIFO_CFG5_BM BIT(19) /* Byte Mode */ ++ ++#define AG71XX_INT_TX_PS BIT(0) ++#define AG71XX_INT_TX_UR BIT(1) ++#define AG71XX_INT_TX_BE BIT(3) ++#define AG71XX_INT_RX_PR BIT(4) ++#define AG71XX_INT_RX_OF BIT(6) ++#define AG71XX_INT_RX_BE BIT(7) ++ ++#define MAC_IFCTL_SPEED BIT(16) ++ ++#define MII_CFG_CLK_DIV_4 0 ++#define MII_CFG_CLK_DIV_6 2 ++#define MII_CFG_CLK_DIV_8 3 ++#define MII_CFG_CLK_DIV_10 4 ++#define MII_CFG_CLK_DIV_14 5 ++#define MII_CFG_CLK_DIV_20 6 ++#define MII_CFG_CLK_DIV_28 7 ++#define MII_CFG_CLK_DIV_34 8 ++#define MII_CFG_CLK_DIV_42 9 ++#define MII_CFG_CLK_DIV_50 10 ++#define MII_CFG_CLK_DIV_58 11 ++#define MII_CFG_CLK_DIV_66 12 ++#define MII_CFG_CLK_DIV_74 13 ++#define MII_CFG_CLK_DIV_82 14 ++#define MII_CFG_CLK_DIV_98 15 ++#define MII_CFG_RESET BIT(31) ++ ++#define MII_CMD_WRITE 0x0 ++#define MII_CMD_READ 0x1 ++#define MII_ADDR_SHIFT 8 ++#define MII_IND_BUSY BIT(0) ++#define MII_IND_INVALID BIT(2) ++ ++#define TX_CTRL_TXE BIT(0) /* Tx Enable */ ++ ++#define TX_STATUS_PS BIT(0) /* Packet Sent */ ++#define TX_STATUS_UR BIT(1) /* Tx Underrun */ ++#define TX_STATUS_BE BIT(3) /* Bus Error */ ++ ++#define RX_CTRL_RXE BIT(0) /* Rx Enable */ ++ ++#define RX_STATUS_PR BIT(0) /* Packet Received */ ++#define RX_STATUS_OF BIT(2) /* Rx Overflow */ ++#define RX_STATUS_BE BIT(3) /* Bus Error */ ++ ++static inline void ag71xx_check_reg_offset(struct ag71xx *ag, unsigned reg) ++{ ++ switch (reg) { ++ case AG71XX_REG_MAC_CFG1 ... AG71XX_REG_MAC_MFL: ++ case AG71XX_REG_MAC_IFCTL ... AG71XX_REG_TX_SM: ++ case AG71XX_REG_MII_CFG: ++ break; ++ ++ default: ++ BUG(); ++ } ++} ++ ++static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value) ++{ ++ ag71xx_check_reg_offset(ag, reg); ++ ++ __raw_writel(value, ag->mac_base + reg); ++ /* flush write */ ++ (void) __raw_readl(ag->mac_base + reg); ++} ++ ++static inline u32 ag71xx_rr(struct ag71xx *ag, unsigned reg) ++{ ++ ag71xx_check_reg_offset(ag, reg); ++ ++ return __raw_readl(ag->mac_base + reg); ++} ++ ++static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask) ++{ ++ void __iomem *r; ++ ++ ag71xx_check_reg_offset(ag, reg); ++ ++ r = ag->mac_base + reg; ++ __raw_writel(__raw_readl(r) | mask, r); ++ /* flush write */ ++ (void)__raw_readl(r); ++} ++ ++static inline void ag71xx_cb(struct ag71xx *ag, unsigned reg, u32 mask) ++{ ++ void __iomem *r; ++ ++ ag71xx_check_reg_offset(ag, reg); ++ ++ r = ag->mac_base + reg; ++ __raw_writel(__raw_readl(r) & ~mask, r); ++ /* flush write */ ++ (void) __raw_readl(r); ++} ++ ++static inline void ag71xx_int_enable(struct ag71xx *ag, u32 ints) ++{ ++ ag71xx_sb(ag, AG71XX_REG_INT_ENABLE, ints); ++} ++ ++static inline void ag71xx_int_disable(struct ag71xx *ag, u32 ints) ++{ ++ ag71xx_cb(ag, AG71XX_REG_INT_ENABLE, ints); ++} ++ ++#ifdef CONFIG_AG71XX_AR8216_SUPPORT ++void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb); ++int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb, ++ int pktlen); ++static inline int ag71xx_has_ar8216(struct ag71xx *ag) ++{ ++ return ag71xx_get_pdata(ag)->has_ar8216; ++} ++#else ++static inline void ag71xx_add_ar8216_header(struct ag71xx *ag, ++ struct sk_buff *skb) ++{ ++} ++ ++static inline int ag71xx_remove_ar8216_header(struct ag71xx *ag, ++ struct sk_buff *skb, ++ int pktlen) ++{ ++ return 0; ++} ++static inline int ag71xx_has_ar8216(struct ag71xx *ag) ++{ ++ return 0; ++} ++#endif ++ ++#ifdef CONFIG_AG71XX_DEBUG_FS ++int ag71xx_debugfs_root_init(void); ++void ag71xx_debugfs_root_exit(void); ++int ag71xx_debugfs_init(struct ag71xx *ag); ++void ag71xx_debugfs_exit(struct ag71xx *ag); ++void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status); ++void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx); ++#else ++static inline int ag71xx_debugfs_root_init(void) { return 0; } ++static inline void ag71xx_debugfs_root_exit(void) {} ++static inline int ag71xx_debugfs_init(struct ag71xx *ag) { return 0; } ++static inline void ag71xx_debugfs_exit(struct ag71xx *ag) {} ++static inline void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, ++ u32 status) {} ++static inline void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, ++ int rx, int tx) {} ++#endif /* CONFIG_AG71XX_DEBUG_FS */ ++ ++void ag71xx_ar7240_start(struct ag71xx *ag); ++void ag71xx_ar7240_stop(struct ag71xx *ag); ++int ag71xx_ar7240_init(struct ag71xx *ag); ++void ag71xx_ar7240_cleanup(struct ag71xx *ag); ++ ++int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg); ++void ag71xx_mdio_mii_write(struct ag71xx_mdio *am, int addr, int reg, u16 val); ++ ++u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr, ++ unsigned reg_addr); ++int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr, ++ unsigned reg_addr, u16 reg_val); ++ ++#endif /* _AG71XX_H */ +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c +new file mode 100644 +index 0000000..d4ccc02 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c +@@ -0,0 +1,1202 @@ ++/* ++ * Driver for the built-in ethernet switch of the Atheros AR7240 SoC ++ * Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (c) 2010 Felix Fietkau <nbd@openwrt.org> ++ * ++ * 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. ++ * ++ */ ++ ++#include <linux/etherdevice.h> ++#include <linux/list.h> ++#include <linux/netdevice.h> ++#include <linux/phy.h> ++#include <linux/mii.h> ++#include <linux/bitops.h> ++#include <linux/switch.h> ++#include "ag71xx.h" ++ ++#define BITM(_count) (BIT(_count) - 1) ++#define BITS(_shift, _count) (BITM(_count) << _shift) ++ ++#define AR7240_REG_MASK_CTRL 0x00 ++#define AR7240_MASK_CTRL_REVISION_M BITM(8) ++#define AR7240_MASK_CTRL_VERSION_M BITM(8) ++#define AR7240_MASK_CTRL_VERSION_S 8 ++#define AR7240_MASK_CTRL_VERSION_AR7240 0x01 ++#define AR7240_MASK_CTRL_VERSION_AR934X 0x02 ++#define AR7240_MASK_CTRL_SOFT_RESET BIT(31) ++ ++#define AR7240_REG_MAC_ADDR0 0x20 ++#define AR7240_REG_MAC_ADDR1 0x24 ++ ++#define AR7240_REG_FLOOD_MASK 0x2c ++#define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26) ++ ++#define AR7240_REG_GLOBAL_CTRL 0x30 ++#define AR7240_GLOBAL_CTRL_MTU_M BITM(11) ++#define AR9340_GLOBAL_CTRL_MTU_M BITM(14) ++ ++#define AR7240_REG_VTU 0x0040 ++#define AR7240_VTU_OP BITM(3) ++#define AR7240_VTU_OP_NOOP 0x0 ++#define AR7240_VTU_OP_FLUSH 0x1 ++#define AR7240_VTU_OP_LOAD 0x2 ++#define AR7240_VTU_OP_PURGE 0x3 ++#define AR7240_VTU_OP_REMOVE_PORT 0x4 ++#define AR7240_VTU_ACTIVE BIT(3) ++#define AR7240_VTU_FULL BIT(4) ++#define AR7240_VTU_PORT BITS(8, 4) ++#define AR7240_VTU_PORT_S 8 ++#define AR7240_VTU_VID BITS(16, 12) ++#define AR7240_VTU_VID_S 16 ++#define AR7240_VTU_PRIO BITS(28, 3) ++#define AR7240_VTU_PRIO_S 28 ++#define AR7240_VTU_PRIO_EN BIT(31) ++ ++#define AR7240_REG_VTU_DATA 0x0044 ++#define AR7240_VTUDATA_MEMBER BITS(0, 10) ++#define AR7240_VTUDATA_VALID BIT(11) ++ ++#define AR7240_REG_ATU 0x50 ++#define AR7240_ATU_FLUSH_ALL 0x1 ++ ++#define AR7240_REG_AT_CTRL 0x5c ++#define AR7240_AT_CTRL_AGE_TIME BITS(0, 15) ++#define AR7240_AT_CTRL_AGE_EN BIT(17) ++#define AR7240_AT_CTRL_LEARN_CHANGE BIT(18) ++#define AR7240_AT_CTRL_RESERVED BIT(19) ++#define AR7240_AT_CTRL_ARP_EN BIT(20) ++ ++#define AR7240_REG_TAG_PRIORITY 0x70 ++ ++#define AR7240_REG_SERVICE_TAG 0x74 ++#define AR7240_SERVICE_TAG_M BITM(16) ++ ++#define AR7240_REG_CPU_PORT 0x78 ++#define AR7240_MIRROR_PORT_S 4 ++#define AR7240_CPU_PORT_EN BIT(8) ++ ++#define AR7240_REG_MIB_FUNCTION0 0x80 ++#define AR7240_MIB_TIMER_M BITM(16) ++#define AR7240_MIB_AT_HALF_EN BIT(16) ++#define AR7240_MIB_BUSY BIT(17) ++#define AR7240_MIB_FUNC_S 24 ++#define AR7240_MIB_FUNC_M BITM(3) ++#define AR7240_MIB_FUNC_NO_OP 0x0 ++#define AR7240_MIB_FUNC_FLUSH 0x1 ++#define AR7240_MIB_FUNC_CAPTURE 0x3 ++ ++#define AR7240_REG_MDIO_CTRL 0x98 ++#define AR7240_MDIO_CTRL_DATA_M BITM(16) ++#define AR7240_MDIO_CTRL_REG_ADDR_S 16 ++#define AR7240_MDIO_CTRL_PHY_ADDR_S 21 ++#define AR7240_MDIO_CTRL_CMD_WRITE 0 ++#define AR7240_MDIO_CTRL_CMD_READ BIT(27) ++#define AR7240_MDIO_CTRL_MASTER_EN BIT(30) ++#define AR7240_MDIO_CTRL_BUSY BIT(31) ++ ++#define AR7240_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100) ++ ++#define AR7240_REG_PORT_STATUS(_port) (AR7240_REG_PORT_BASE((_port)) + 0x00) ++#define AR7240_PORT_STATUS_SPEED_S 0 ++#define AR7240_PORT_STATUS_SPEED_M BITM(2) ++#define AR7240_PORT_STATUS_SPEED_10 0 ++#define AR7240_PORT_STATUS_SPEED_100 1 ++#define AR7240_PORT_STATUS_SPEED_1000 2 ++#define AR7240_PORT_STATUS_TXMAC BIT(2) ++#define AR7240_PORT_STATUS_RXMAC BIT(3) ++#define AR7240_PORT_STATUS_TXFLOW BIT(4) ++#define AR7240_PORT_STATUS_RXFLOW BIT(5) ++#define AR7240_PORT_STATUS_DUPLEX BIT(6) ++#define AR7240_PORT_STATUS_LINK_UP BIT(8) ++#define AR7240_PORT_STATUS_LINK_AUTO BIT(9) ++#define AR7240_PORT_STATUS_LINK_PAUSE BIT(10) ++ ++#define AR7240_REG_PORT_CTRL(_port) (AR7240_REG_PORT_BASE((_port)) + 0x04) ++#define AR7240_PORT_CTRL_STATE_M BITM(3) ++#define AR7240_PORT_CTRL_STATE_DISABLED 0 ++#define AR7240_PORT_CTRL_STATE_BLOCK 1 ++#define AR7240_PORT_CTRL_STATE_LISTEN 2 ++#define AR7240_PORT_CTRL_STATE_LEARN 3 ++#define AR7240_PORT_CTRL_STATE_FORWARD 4 ++#define AR7240_PORT_CTRL_LEARN_LOCK BIT(7) ++#define AR7240_PORT_CTRL_VLAN_MODE_S 8 ++#define AR7240_PORT_CTRL_VLAN_MODE_KEEP 0 ++#define AR7240_PORT_CTRL_VLAN_MODE_STRIP 1 ++#define AR7240_PORT_CTRL_VLAN_MODE_ADD 2 ++#define AR7240_PORT_CTRL_VLAN_MODE_DOUBLE_TAG 3 ++#define AR7240_PORT_CTRL_IGMP_SNOOP BIT(10) ++#define AR7240_PORT_CTRL_HEADER BIT(11) ++#define AR7240_PORT_CTRL_MAC_LOOP BIT(12) ++#define AR7240_PORT_CTRL_SINGLE_VLAN BIT(13) ++#define AR7240_PORT_CTRL_LEARN BIT(14) ++#define AR7240_PORT_CTRL_DOUBLE_TAG BIT(15) ++#define AR7240_PORT_CTRL_MIRROR_TX BIT(16) ++#define AR7240_PORT_CTRL_MIRROR_RX BIT(17) ++ ++#define AR7240_REG_PORT_VLAN(_port) (AR7240_REG_PORT_BASE((_port)) + 0x08) ++ ++#define AR7240_PORT_VLAN_DEFAULT_ID_S 0 ++#define AR7240_PORT_VLAN_DEST_PORTS_S 16 ++#define AR7240_PORT_VLAN_MODE_S 30 ++#define AR7240_PORT_VLAN_MODE_PORT_ONLY 0 ++#define AR7240_PORT_VLAN_MODE_PORT_FALLBACK 1 ++#define AR7240_PORT_VLAN_MODE_VLAN_ONLY 2 ++#define AR7240_PORT_VLAN_MODE_SECURE 3 ++ ++ ++#define AR7240_REG_STATS_BASE(_port) (0x20000 + (_port) * 0x100) ++ ++#define AR7240_STATS_RXBROAD 0x00 ++#define AR7240_STATS_RXPAUSE 0x04 ++#define AR7240_STATS_RXMULTI 0x08 ++#define AR7240_STATS_RXFCSERR 0x0c ++#define AR7240_STATS_RXALIGNERR 0x10 ++#define AR7240_STATS_RXRUNT 0x14 ++#define AR7240_STATS_RXFRAGMENT 0x18 ++#define AR7240_STATS_RX64BYTE 0x1c ++#define AR7240_STATS_RX128BYTE 0x20 ++#define AR7240_STATS_RX256BYTE 0x24 ++#define AR7240_STATS_RX512BYTE 0x28 ++#define AR7240_STATS_RX1024BYTE 0x2c ++#define AR7240_STATS_RX1518BYTE 0x30 ++#define AR7240_STATS_RXMAXBYTE 0x34 ++#define AR7240_STATS_RXTOOLONG 0x38 ++#define AR7240_STATS_RXGOODBYTE 0x3c ++#define AR7240_STATS_RXBADBYTE 0x44 ++#define AR7240_STATS_RXOVERFLOW 0x4c ++#define AR7240_STATS_FILTERED 0x50 ++#define AR7240_STATS_TXBROAD 0x54 ++#define AR7240_STATS_TXPAUSE 0x58 ++#define AR7240_STATS_TXMULTI 0x5c ++#define AR7240_STATS_TXUNDERRUN 0x60 ++#define AR7240_STATS_TX64BYTE 0x64 ++#define AR7240_STATS_TX128BYTE 0x68 ++#define AR7240_STATS_TX256BYTE 0x6c ++#define AR7240_STATS_TX512BYTE 0x70 ++#define AR7240_STATS_TX1024BYTE 0x74 ++#define AR7240_STATS_TX1518BYTE 0x78 ++#define AR7240_STATS_TXMAXBYTE 0x7c ++#define AR7240_STATS_TXOVERSIZE 0x80 ++#define AR7240_STATS_TXBYTE 0x84 ++#define AR7240_STATS_TXCOLLISION 0x8c ++#define AR7240_STATS_TXABORTCOL 0x90 ++#define AR7240_STATS_TXMULTICOL 0x94 ++#define AR7240_STATS_TXSINGLECOL 0x98 ++#define AR7240_STATS_TXEXCDEFER 0x9c ++#define AR7240_STATS_TXDEFER 0xa0 ++#define AR7240_STATS_TXLATECOL 0xa4 ++ ++#define AR7240_PORT_CPU 0 ++#define AR7240_NUM_PORTS 6 ++#define AR7240_NUM_PHYS 5 ++ ++#define AR7240_PHY_ID1 0x004d ++#define AR7240_PHY_ID2 0xd041 ++ ++#define AR934X_PHY_ID1 0x004d ++#define AR934X_PHY_ID2 0xd042 ++ ++#define AR7240_MAX_VLANS 16 ++ ++#define AR934X_REG_OPER_MODE0 0x04 ++#define AR934X_OPER_MODE0_MAC_GMII_EN BIT(6) ++#define AR934X_OPER_MODE0_PHY_MII_EN BIT(10) ++ ++#define AR934X_REG_OPER_MODE1 0x08 ++#define AR934X_REG_OPER_MODE1_PHY4_MII_EN BIT(28) ++ ++#define AR934X_REG_FLOOD_MASK 0x2c ++#define AR934X_FLOOD_MASK_MC_DP(_p) BIT(16 + (_p)) ++#define AR934X_FLOOD_MASK_BC_DP(_p) BIT(25 + (_p)) ++ ++#define AR934X_REG_QM_CTRL 0x3c ++#define AR934X_QM_CTRL_ARP_EN BIT(15) ++ ++#define AR934X_REG_AT_CTRL 0x5c ++#define AR934X_AT_CTRL_AGE_TIME BITS(0, 15) ++#define AR934X_AT_CTRL_AGE_EN BIT(17) ++#define AR934X_AT_CTRL_LEARN_CHANGE BIT(18) ++ ++#define AR934X_MIB_ENABLE BIT(30) ++ ++#define AR934X_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100) ++ ++#define AR934X_REG_PORT_VLAN1(_port) (AR934X_REG_PORT_BASE((_port)) + 0x08) ++#define AR934X_PORT_VLAN1_DEFAULT_SVID_S 0 ++#define AR934X_PORT_VLAN1_FORCE_DEFAULT_VID_EN BIT(12) ++#define AR934X_PORT_VLAN1_PORT_TLS_MODE BIT(13) ++#define AR934X_PORT_VLAN1_PORT_VLAN_PROP_EN BIT(14) ++#define AR934X_PORT_VLAN1_PORT_CLONE_EN BIT(15) ++#define AR934X_PORT_VLAN1_DEFAULT_CVID_S 16 ++#define AR934X_PORT_VLAN1_FORCE_PORT_VLAN_EN BIT(28) ++#define AR934X_PORT_VLAN1_ING_PORT_PRI_S 29 ++ ++#define AR934X_REG_PORT_VLAN2(_port) (AR934X_REG_PORT_BASE((_port)) + 0x0c) ++#define AR934X_PORT_VLAN2_PORT_VID_MEM_S 16 ++#define AR934X_PORT_VLAN2_8021Q_MODE_S 30 ++#define AR934X_PORT_VLAN2_8021Q_MODE_PORT_ONLY 0 ++#define AR934X_PORT_VLAN2_8021Q_MODE_PORT_FALLBACK 1 ++#define AR934X_PORT_VLAN2_8021Q_MODE_VLAN_ONLY 2 ++#define AR934X_PORT_VLAN2_8021Q_MODE_SECURE 3 ++ ++#define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev) ++ ++struct ar7240sw_port_stat { ++ unsigned long rx_broadcast; ++ unsigned long rx_pause; ++ unsigned long rx_multicast; ++ unsigned long rx_fcs_error; ++ unsigned long rx_align_error; ++ unsigned long rx_runt; ++ unsigned long rx_fragments; ++ unsigned long rx_64byte; ++ unsigned long rx_128byte; ++ unsigned long rx_256byte; ++ unsigned long rx_512byte; ++ unsigned long rx_1024byte; ++ unsigned long rx_1518byte; ++ unsigned long rx_maxbyte; ++ unsigned long rx_toolong; ++ unsigned long rx_good_byte; ++ unsigned long rx_bad_byte; ++ unsigned long rx_overflow; ++ unsigned long filtered; ++ ++ unsigned long tx_broadcast; ++ unsigned long tx_pause; ++ unsigned long tx_multicast; ++ unsigned long tx_underrun; ++ unsigned long tx_64byte; ++ unsigned long tx_128byte; ++ unsigned long tx_256byte; ++ unsigned long tx_512byte; ++ unsigned long tx_1024byte; ++ unsigned long tx_1518byte; ++ unsigned long tx_maxbyte; ++ unsigned long tx_oversize; ++ unsigned long tx_byte; ++ unsigned long tx_collision; ++ unsigned long tx_abortcol; ++ unsigned long tx_multicol; ++ unsigned long tx_singlecol; ++ unsigned long tx_excdefer; ++ unsigned long tx_defer; ++ unsigned long tx_xlatecol; ++}; ++ ++struct ar7240sw { ++ struct mii_bus *mii_bus; ++ struct ag71xx_switch_platform_data *swdata; ++ struct switch_dev swdev; ++ int num_ports; ++ u8 ver; ++ bool vlan; ++ u16 vlan_id[AR7240_MAX_VLANS]; ++ u8 vlan_table[AR7240_MAX_VLANS]; ++ u8 vlan_tagged; ++ u16 pvid[AR7240_NUM_PORTS]; ++ char buf[80]; ++ ++ rwlock_t stats_lock; ++ struct ar7240sw_port_stat port_stats[AR7240_NUM_PORTS]; ++}; ++ ++struct ar7240sw_hw_stat { ++ char string[ETH_GSTRING_LEN]; ++ int sizeof_stat; ++ int reg; ++}; ++ ++static DEFINE_MUTEX(reg_mutex); ++ ++static inline int sw_is_ar7240(struct ar7240sw *as) ++{ ++ return as->ver == AR7240_MASK_CTRL_VERSION_AR7240; ++} ++ ++static inline int sw_is_ar934x(struct ar7240sw *as) ++{ ++ return as->ver == AR7240_MASK_CTRL_VERSION_AR934X; ++} ++ ++static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port) ++{ ++ return BIT(port); ++} ++ ++static inline u32 ar7240sw_port_mask_all(struct ar7240sw *as) ++{ ++ return BIT(as->swdev.ports) - 1; ++} ++ ++static inline u32 ar7240sw_port_mask_but(struct ar7240sw *as, int port) ++{ ++ return ar7240sw_port_mask_all(as) & ~BIT(port); ++} ++ ++static inline u16 mk_phy_addr(u32 reg) ++{ ++ return 0x17 & ((reg >> 4) | 0x10); ++} ++ ++static inline u16 mk_phy_reg(u32 reg) ++{ ++ return (reg << 1) & 0x1e; ++} ++ ++static inline u16 mk_high_addr(u32 reg) ++{ ++ return (reg >> 7) & 0x1ff; ++} ++ ++static u32 __ar7240sw_reg_read(struct mii_bus *mii, u32 reg) ++{ ++ unsigned long flags; ++ u16 phy_addr; ++ u16 phy_reg; ++ u32 hi, lo; ++ ++ reg = (reg & 0xfffffffc) >> 2; ++ phy_addr = mk_phy_addr(reg); ++ phy_reg = mk_phy_reg(reg); ++ ++ local_irq_save(flags); ++ ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg)); ++ lo = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg); ++ hi = (u32) ag71xx_mdio_mii_read(mii->priv, phy_addr, phy_reg + 1); ++ local_irq_restore(flags); ++ ++ return (hi << 16) | lo; ++} ++ ++static void __ar7240sw_reg_write(struct mii_bus *mii, u32 reg, u32 val) ++{ ++ unsigned long flags; ++ u16 phy_addr; ++ u16 phy_reg; ++ ++ reg = (reg & 0xfffffffc) >> 2; ++ phy_addr = mk_phy_addr(reg); ++ phy_reg = mk_phy_reg(reg); ++ ++ local_irq_save(flags); ++ ag71xx_mdio_mii_write(mii->priv, 0x1f, 0x10, mk_high_addr(reg)); ++ ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg + 1, (val >> 16)); ++ ag71xx_mdio_mii_write(mii->priv, phy_addr, phy_reg, (val & 0xffff)); ++ local_irq_restore(flags); ++} ++ ++static u32 ar7240sw_reg_read(struct mii_bus *mii, u32 reg_addr) ++{ ++ u32 ret; ++ ++ mutex_lock(®_mutex); ++ ret = __ar7240sw_reg_read(mii, reg_addr); ++ mutex_unlock(®_mutex); ++ ++ return ret; ++} ++ ++static void ar7240sw_reg_write(struct mii_bus *mii, u32 reg_addr, u32 reg_val) ++{ ++ mutex_lock(®_mutex); ++ __ar7240sw_reg_write(mii, reg_addr, reg_val); ++ mutex_unlock(®_mutex); ++} ++ ++static u32 ar7240sw_reg_rmw(struct mii_bus *mii, u32 reg, u32 mask, u32 val) ++{ ++ u32 t; ++ ++ mutex_lock(®_mutex); ++ t = __ar7240sw_reg_read(mii, reg); ++ t &= ~mask; ++ t |= val; ++ __ar7240sw_reg_write(mii, reg, t); ++ mutex_unlock(®_mutex); ++ ++ return t; ++} ++ ++static void ar7240sw_reg_set(struct mii_bus *mii, u32 reg, u32 val) ++{ ++ u32 t; ++ ++ mutex_lock(®_mutex); ++ t = __ar7240sw_reg_read(mii, reg); ++ t |= val; ++ __ar7240sw_reg_write(mii, reg, t); ++ mutex_unlock(®_mutex); ++} ++ ++static int __ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val, ++ unsigned timeout) ++{ ++ int i; ++ ++ for (i = 0; i < timeout; i++) { ++ u32 t; ++ ++ t = __ar7240sw_reg_read(mii, reg); ++ if ((t & mask) == val) ++ return 0; ++ ++ msleep(1); ++ } ++ ++ return -ETIMEDOUT; ++} ++ ++static int ar7240sw_reg_wait(struct mii_bus *mii, u32 reg, u32 mask, u32 val, ++ unsigned timeout) ++{ ++ int ret; ++ ++ mutex_lock(®_mutex); ++ ret = __ar7240sw_reg_wait(mii, reg, mask, val, timeout); ++ mutex_unlock(®_mutex); ++ return ret; ++} ++ ++u16 ar7240sw_phy_read(struct mii_bus *mii, unsigned phy_addr, ++ unsigned reg_addr) ++{ ++ u32 t, val = 0xffff; ++ int err; ++ ++ if (phy_addr >= AR7240_NUM_PHYS) ++ return 0xffff; ++ ++ mutex_lock(®_mutex); ++ t = (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) | ++ (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) | ++ AR7240_MDIO_CTRL_MASTER_EN | ++ AR7240_MDIO_CTRL_BUSY | ++ AR7240_MDIO_CTRL_CMD_READ; ++ ++ __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t); ++ err = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL, ++ AR7240_MDIO_CTRL_BUSY, 0, 5); ++ if (!err) ++ val = __ar7240sw_reg_read(mii, AR7240_REG_MDIO_CTRL); ++ mutex_unlock(®_mutex); ++ ++ return val & AR7240_MDIO_CTRL_DATA_M; ++} ++ ++int ar7240sw_phy_write(struct mii_bus *mii, unsigned phy_addr, ++ unsigned reg_addr, u16 reg_val) ++{ ++ u32 t; ++ int ret; ++ ++ if (phy_addr >= AR7240_NUM_PHYS) ++ return -EINVAL; ++ ++ mutex_lock(®_mutex); ++ t = (phy_addr << AR7240_MDIO_CTRL_PHY_ADDR_S) | ++ (reg_addr << AR7240_MDIO_CTRL_REG_ADDR_S) | ++ AR7240_MDIO_CTRL_MASTER_EN | ++ AR7240_MDIO_CTRL_BUSY | ++ AR7240_MDIO_CTRL_CMD_WRITE | ++ reg_val; ++ ++ __ar7240sw_reg_write(mii, AR7240_REG_MDIO_CTRL, t); ++ ret = __ar7240sw_reg_wait(mii, AR7240_REG_MDIO_CTRL, ++ AR7240_MDIO_CTRL_BUSY, 0, 5); ++ mutex_unlock(®_mutex); ++ ++ return ret; ++} ++ ++static int ar7240sw_capture_stats(struct ar7240sw *as) ++{ ++ struct mii_bus *mii = as->mii_bus; ++ int port; ++ int ret; ++ ++ write_lock(&as->stats_lock); ++ ++ /* Capture the hardware statistics for all ports */ ++ ar7240sw_reg_rmw(mii, AR7240_REG_MIB_FUNCTION0, ++ (AR7240_MIB_FUNC_M << AR7240_MIB_FUNC_S), ++ (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S)); ++ ++ /* Wait for the capturing to complete. */ ++ ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0, ++ AR7240_MIB_BUSY, 0, 10); ++ ++ if (ret) ++ goto unlock; ++ ++ for (port = 0; port < AR7240_NUM_PORTS; port++) { ++ unsigned int base; ++ struct ar7240sw_port_stat *stats; ++ ++ base = AR7240_REG_STATS_BASE(port); ++ stats = &as->port_stats[port]; ++ ++#define READ_STAT(_r) ar7240sw_reg_read(mii, base + AR7240_STATS_ ## _r) ++ ++ stats->rx_good_byte += READ_STAT(RXGOODBYTE); ++ stats->tx_byte += READ_STAT(TXBYTE); ++ ++#undef READ_STAT ++ } ++ ++ ret = 0; ++ ++unlock: ++ write_unlock(&as->stats_lock); ++ return ret; ++} ++ ++static void ar7240sw_disable_port(struct ar7240sw *as, unsigned port) ++{ ++ ar7240sw_reg_write(as->mii_bus, AR7240_REG_PORT_CTRL(port), ++ AR7240_PORT_CTRL_STATE_DISABLED); ++} ++ ++static void ar7240sw_setup(struct ar7240sw *as) ++{ ++ struct mii_bus *mii = as->mii_bus; ++ ++ /* Enable CPU port, and disable mirror port */ ++ ar7240sw_reg_write(mii, AR7240_REG_CPU_PORT, ++ AR7240_CPU_PORT_EN | ++ (15 << AR7240_MIRROR_PORT_S)); ++ ++ /* Setup TAG priority mapping */ ++ ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50); ++ ++ if (sw_is_ar934x(as)) { ++ /* Enable aging, MAC replacing */ ++ ar7240sw_reg_write(mii, AR934X_REG_AT_CTRL, ++ 0x2b /* 5 min age time */ | ++ AR934X_AT_CTRL_AGE_EN | ++ AR934X_AT_CTRL_LEARN_CHANGE); ++ /* Enable ARP frame acknowledge */ ++ ar7240sw_reg_set(mii, AR934X_REG_QM_CTRL, ++ AR934X_QM_CTRL_ARP_EN); ++ /* Enable Broadcast/Multicast frames transmitted to the CPU */ ++ ar7240sw_reg_set(mii, AR934X_REG_FLOOD_MASK, ++ AR934X_FLOOD_MASK_BC_DP(0) | ++ AR934X_FLOOD_MASK_MC_DP(0)); ++ ++ /* setup MTU */ ++ ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, ++ AR9340_GLOBAL_CTRL_MTU_M, ++ AR9340_GLOBAL_CTRL_MTU_M); ++ ++ /* Enable MIB counters */ ++ ar7240sw_reg_set(mii, AR7240_REG_MIB_FUNCTION0, ++ AR934X_MIB_ENABLE); ++ ++ } else { ++ /* Enable ARP frame acknowledge, aging, MAC replacing */ ++ ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL, ++ AR7240_AT_CTRL_RESERVED | ++ 0x2b /* 5 min age time */ | ++ AR7240_AT_CTRL_AGE_EN | ++ AR7240_AT_CTRL_ARP_EN | ++ AR7240_AT_CTRL_LEARN_CHANGE); ++ /* Enable Broadcast frames transmitted to the CPU */ ++ ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK, ++ AR7240_FLOOD_MASK_BROAD_TO_CPU); ++ ++ /* setup MTU */ ++ ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, ++ AR7240_GLOBAL_CTRL_MTU_M, ++ AR7240_GLOBAL_CTRL_MTU_M); ++ } ++ ++ /* setup Service TAG */ ++ ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0); ++} ++ ++static int ar7240sw_reset(struct ar7240sw *as) ++{ ++ struct mii_bus *mii = as->mii_bus; ++ int ret; ++ int i; ++ ++ /* Set all ports to disabled state. */ ++ for (i = 0; i < AR7240_NUM_PORTS; i++) ++ ar7240sw_disable_port(as, i); ++ ++ /* Wait for transmit queues to drain. */ ++ msleep(2); ++ ++ /* Reset the switch. */ ++ ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL, ++ AR7240_MASK_CTRL_SOFT_RESET); ++ ++ ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL, ++ AR7240_MASK_CTRL_SOFT_RESET, 0, 1000); ++ ++ /* setup PHYs */ ++ for (i = 0; i < AR7240_NUM_PHYS; i++) { ++ ar7240sw_phy_write(mii, i, MII_ADVERTISE, ++ ADVERTISE_ALL | ADVERTISE_PAUSE_CAP | ++ ADVERTISE_PAUSE_ASYM); ++ ar7240sw_phy_write(mii, i, MII_BMCR, ++ BMCR_RESET | BMCR_ANENABLE); ++ } ++ msleep(1000); ++ ++ ar7240sw_setup(as); ++ return ret; ++} ++ ++static void ar7240sw_setup_port(struct ar7240sw *as, unsigned port, u8 portmask) ++{ ++ struct mii_bus *mii = as->mii_bus; ++ u32 ctrl; ++ u32 vid, mode; ++ ++ ctrl = AR7240_PORT_CTRL_STATE_FORWARD | AR7240_PORT_CTRL_LEARN | ++ AR7240_PORT_CTRL_SINGLE_VLAN; ++ ++ if (port == AR7240_PORT_CPU) { ++ ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port), ++ AR7240_PORT_STATUS_SPEED_1000 | ++ AR7240_PORT_STATUS_TXFLOW | ++ AR7240_PORT_STATUS_RXFLOW | ++ AR7240_PORT_STATUS_TXMAC | ++ AR7240_PORT_STATUS_RXMAC | ++ AR7240_PORT_STATUS_DUPLEX); ++ } else { ++ ar7240sw_reg_write(mii, AR7240_REG_PORT_STATUS(port), ++ AR7240_PORT_STATUS_LINK_AUTO); ++ } ++ ++ /* Set the default VID for this port */ ++ if (as->vlan) { ++ vid = as->vlan_id[as->pvid[port]]; ++ mode = AR7240_PORT_VLAN_MODE_SECURE; ++ } else { ++ vid = port; ++ mode = AR7240_PORT_VLAN_MODE_PORT_ONLY; ++ } ++ ++ if (as->vlan) { ++ if (as->vlan_tagged & BIT(port)) ++ ctrl |= AR7240_PORT_CTRL_VLAN_MODE_ADD << ++ AR7240_PORT_CTRL_VLAN_MODE_S; ++ else ++ ctrl |= AR7240_PORT_CTRL_VLAN_MODE_STRIP << ++ AR7240_PORT_CTRL_VLAN_MODE_S; ++ } else { ++ ctrl |= AR7240_PORT_CTRL_VLAN_MODE_KEEP << ++ AR7240_PORT_CTRL_VLAN_MODE_S; ++ } ++ ++ if (!portmask) { ++ if (port == AR7240_PORT_CPU) ++ portmask = ar7240sw_port_mask_but(as, AR7240_PORT_CPU); ++ else ++ portmask = ar7240sw_port_mask(as, AR7240_PORT_CPU); ++ } ++ ++ /* allow the port to talk to all other ports, but exclude its ++ * own ID to prevent frames from being reflected back to the ++ * port that they came from */ ++ portmask &= ar7240sw_port_mask_but(as, port); ++ ++ ar7240sw_reg_write(mii, AR7240_REG_PORT_CTRL(port), ctrl); ++ if (sw_is_ar934x(as)) { ++ u32 vlan1, vlan2; ++ ++ vlan1 = (vid << AR934X_PORT_VLAN1_DEFAULT_CVID_S); ++ vlan2 = (portmask << AR934X_PORT_VLAN2_PORT_VID_MEM_S) | ++ (mode << AR934X_PORT_VLAN2_8021Q_MODE_S); ++ ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN1(port), vlan1); ++ ar7240sw_reg_write(mii, AR934X_REG_PORT_VLAN2(port), vlan2); ++ } else { ++ u32 vlan; ++ ++ vlan = vid | (mode << AR7240_PORT_VLAN_MODE_S) | ++ (portmask << AR7240_PORT_VLAN_DEST_PORTS_S); ++ ++ ar7240sw_reg_write(mii, AR7240_REG_PORT_VLAN(port), vlan); ++ } ++} ++ ++static int ar7240_set_addr(struct ar7240sw *as, u8 *addr) ++{ ++ struct mii_bus *mii = as->mii_bus; ++ u32 t; ++ ++ t = (addr[4] << 8) | addr[5]; ++ ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR0, t); ++ ++ t = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) | addr[3]; ++ ar7240sw_reg_write(mii, AR7240_REG_MAC_ADDR1, t); ++ ++ return 0; ++} ++ ++static int ++ar7240_set_vid(struct switch_dev *dev, const struct switch_attr *attr, ++ struct switch_val *val) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ as->vlan_id[val->port_vlan] = val->value.i; ++ return 0; ++} ++ ++static int ++ar7240_get_vid(struct switch_dev *dev, const struct switch_attr *attr, ++ struct switch_val *val) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ val->value.i = as->vlan_id[val->port_vlan]; ++ return 0; ++} ++ ++static int ++ar7240_set_pvid(struct switch_dev *dev, int port, int vlan) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ ++ /* make sure no invalid PVIDs get set */ ++ ++ if (vlan >= dev->vlans) ++ return -EINVAL; ++ ++ as->pvid[port] = vlan; ++ return 0; ++} ++ ++static int ++ar7240_get_pvid(struct switch_dev *dev, int port, int *vlan) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ *vlan = as->pvid[port]; ++ return 0; ++} ++ ++static int ++ar7240_get_ports(struct switch_dev *dev, struct switch_val *val) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ u8 ports = as->vlan_table[val->port_vlan]; ++ int i; ++ ++ val->len = 0; ++ for (i = 0; i < as->swdev.ports; i++) { ++ struct switch_port *p; ++ ++ if (!(ports & (1 << i))) ++ continue; ++ ++ p = &val->value.ports[val->len++]; ++ p->id = i; ++ if (as->vlan_tagged & (1 << i)) ++ p->flags = (1 << SWITCH_PORT_FLAG_TAGGED); ++ else ++ p->flags = 0; ++ } ++ return 0; ++} ++ ++static int ++ar7240_set_ports(struct switch_dev *dev, struct switch_val *val) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ u8 *vt = &as->vlan_table[val->port_vlan]; ++ int i, j; ++ ++ *vt = 0; ++ for (i = 0; i < val->len; i++) { ++ struct switch_port *p = &val->value.ports[i]; ++ ++ if (p->flags & (1 << SWITCH_PORT_FLAG_TAGGED)) ++ as->vlan_tagged |= (1 << p->id); ++ else { ++ as->vlan_tagged &= ~(1 << p->id); ++ as->pvid[p->id] = val->port_vlan; ++ ++ /* make sure that an untagged port does not ++ * appear in other vlans */ ++ for (j = 0; j < AR7240_MAX_VLANS; j++) { ++ if (j == val->port_vlan) ++ continue; ++ as->vlan_table[j] &= ~(1 << p->id); ++ } ++ } ++ ++ *vt |= 1 << p->id; ++ } ++ return 0; ++} ++ ++static int ++ar7240_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, ++ struct switch_val *val) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ as->vlan = !!val->value.i; ++ return 0; ++} ++ ++static int ++ar7240_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, ++ struct switch_val *val) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ val->value.i = as->vlan; ++ return 0; ++} ++ ++static void ++ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val) ++{ ++ struct mii_bus *mii = as->mii_bus; ++ ++ if (ar7240sw_reg_wait(mii, AR7240_REG_VTU, AR7240_VTU_ACTIVE, 0, 5)) ++ return; ++ ++ if ((op & AR7240_VTU_OP) == AR7240_VTU_OP_LOAD) { ++ val &= AR7240_VTUDATA_MEMBER; ++ val |= AR7240_VTUDATA_VALID; ++ ar7240sw_reg_write(mii, AR7240_REG_VTU_DATA, val); ++ } ++ op |= AR7240_VTU_ACTIVE; ++ ar7240sw_reg_write(mii, AR7240_REG_VTU, op); ++} ++ ++static int ++ar7240_hw_apply(struct switch_dev *dev) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ u8 portmask[AR7240_NUM_PORTS]; ++ int i, j; ++ ++ /* flush all vlan translation unit entries */ ++ ar7240_vtu_op(as, AR7240_VTU_OP_FLUSH, 0); ++ ++ memset(portmask, 0, sizeof(portmask)); ++ if (as->vlan) { ++ /* calculate the port destination masks and load vlans ++ * into the vlan translation unit */ ++ for (j = 0; j < AR7240_MAX_VLANS; j++) { ++ u8 vp = as->vlan_table[j]; ++ ++ if (!vp) ++ continue; ++ ++ for (i = 0; i < as->swdev.ports; i++) { ++ u8 mask = (1 << i); ++ if (vp & mask) ++ portmask[i] |= vp & ~mask; ++ } ++ ++ ar7240_vtu_op(as, ++ AR7240_VTU_OP_LOAD | ++ (as->vlan_id[j] << AR7240_VTU_VID_S), ++ as->vlan_table[j]); ++ } ++ } else { ++ /* vlan disabled: ++ * isolate all ports, but connect them to the cpu port */ ++ for (i = 0; i < as->swdev.ports; i++) { ++ if (i == AR7240_PORT_CPU) ++ continue; ++ ++ portmask[i] = 1 << AR7240_PORT_CPU; ++ portmask[AR7240_PORT_CPU] |= (1 << i); ++ } ++ } ++ ++ /* update the port destination mask registers and tag settings */ ++ for (i = 0; i < as->swdev.ports; i++) ++ ar7240sw_setup_port(as, i, portmask[i]); ++ ++ return 0; ++} ++ ++static int ++ar7240_reset_switch(struct switch_dev *dev) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ ar7240sw_reset(as); ++ return 0; ++} ++ ++static int ++ar7240_get_port_link(struct switch_dev *dev, int port, ++ struct switch_port_link *link) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ struct mii_bus *mii = as->mii_bus; ++ u32 status; ++ ++ if (port > AR7240_NUM_PORTS) ++ return -EINVAL; ++ ++ status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port)); ++ link->aneg = !!(status & AR7240_PORT_STATUS_LINK_AUTO); ++ if (link->aneg) { ++ link->link = !!(status & AR7240_PORT_STATUS_LINK_UP); ++ if (!link->link) ++ return 0; ++ } else { ++ link->link = true; ++ } ++ ++ link->duplex = !!(status & AR7240_PORT_STATUS_DUPLEX); ++ link->tx_flow = !!(status & AR7240_PORT_STATUS_TXFLOW); ++ link->rx_flow = !!(status & AR7240_PORT_STATUS_RXFLOW); ++ switch (status & AR7240_PORT_STATUS_SPEED_M) { ++ case AR7240_PORT_STATUS_SPEED_10: ++ link->speed = SWITCH_PORT_SPEED_10; ++ break; ++ case AR7240_PORT_STATUS_SPEED_100: ++ link->speed = SWITCH_PORT_SPEED_100; ++ break; ++ case AR7240_PORT_STATUS_SPEED_1000: ++ link->speed = SWITCH_PORT_SPEED_1000; ++ break; ++ } ++ ++ return 0; ++} ++ ++static int ++ar7240_get_port_stats(struct switch_dev *dev, int port, ++ struct switch_port_stats *stats) ++{ ++ struct ar7240sw *as = sw_to_ar7240(dev); ++ ++ if (port > AR7240_NUM_PORTS) ++ return -EINVAL; ++ ++ ar7240sw_capture_stats(as); ++ ++ read_lock(&as->stats_lock); ++ stats->rx_bytes = as->port_stats[port].rx_good_byte; ++ stats->tx_bytes = as->port_stats[port].tx_byte; ++ read_unlock(&as->stats_lock); ++ ++ return 0; ++} ++ ++static struct switch_attr ar7240_globals[] = { ++ { ++ .type = SWITCH_TYPE_INT, ++ .name = "enable_vlan", ++ .description = "Enable VLAN mode", ++ .set = ar7240_set_vlan, ++ .get = ar7240_get_vlan, ++ .max = 1 ++ }, ++}; ++ ++static struct switch_attr ar7240_port[] = { ++}; ++ ++static struct switch_attr ar7240_vlan[] = { ++ { ++ .type = SWITCH_TYPE_INT, ++ .name = "vid", ++ .description = "VLAN ID", ++ .set = ar7240_set_vid, ++ .get = ar7240_get_vid, ++ .max = 4094, ++ }, ++}; ++ ++static const struct switch_dev_ops ar7240_ops = { ++ .attr_global = { ++ .attr = ar7240_globals, ++ .n_attr = ARRAY_SIZE(ar7240_globals), ++ }, ++ .attr_port = { ++ .attr = ar7240_port, ++ .n_attr = ARRAY_SIZE(ar7240_port), ++ }, ++ .attr_vlan = { ++ .attr = ar7240_vlan, ++ .n_attr = ARRAY_SIZE(ar7240_vlan), ++ }, ++ .get_port_pvid = ar7240_get_pvid, ++ .set_port_pvid = ar7240_set_pvid, ++ .get_vlan_ports = ar7240_get_ports, ++ .set_vlan_ports = ar7240_set_ports, ++ .apply_config = ar7240_hw_apply, ++ .reset_switch = ar7240_reset_switch, ++ .get_port_link = ar7240_get_port_link, ++ .get_port_stats = ar7240_get_port_stats, ++}; ++ ++static struct ar7240sw *ar7240_probe(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ struct mii_bus *mii = ag->mii_bus; ++ struct ar7240sw *as; ++ struct switch_dev *swdev; ++ u32 ctrl; ++ u16 phy_id1; ++ u16 phy_id2; ++ int i; ++ ++ phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1); ++ phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2); ++ if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) && ++ (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) { ++ pr_err("%s: unknown phy id '%04x:%04x'\n", ++ dev_name(&mii->dev), phy_id1, phy_id2); ++ return NULL; ++ } ++ ++ as = kzalloc(sizeof(*as), GFP_KERNEL); ++ if (!as) ++ return NULL; ++ ++ as->mii_bus = mii; ++ as->swdata = pdata->switch_data; ++ ++ swdev = &as->swdev; ++ ++ ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL); ++ as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) & ++ AR7240_MASK_CTRL_VERSION_M; ++ ++ if (sw_is_ar7240(as)) { ++ swdev->name = "AR7240/AR9330 built-in switch"; ++ swdev->ports = AR7240_NUM_PORTS - 1; ++ } else if (sw_is_ar934x(as)) { ++ swdev->name = "AR934X built-in switch"; ++ ++ if (pdata->phy_if_mode == PHY_INTERFACE_MODE_GMII) { ++ ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0, ++ AR934X_OPER_MODE0_MAC_GMII_EN); ++ } else if (pdata->phy_if_mode == PHY_INTERFACE_MODE_MII) { ++ ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE0, ++ AR934X_OPER_MODE0_PHY_MII_EN); ++ } else { ++ pr_err("%s: invalid PHY interface mode\n", ++ dev_name(&mii->dev)); ++ goto err_free; ++ } ++ ++ if (as->swdata->phy4_mii_en) { ++ ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE1, ++ AR934X_REG_OPER_MODE1_PHY4_MII_EN); ++ swdev->ports = AR7240_NUM_PORTS - 1; ++ } else { ++ swdev->ports = AR7240_NUM_PORTS; ++ } ++ } else { ++ pr_err("%s: unsupported chip, ctrl=%08x\n", ++ dev_name(&mii->dev), ctrl); ++ goto err_free; ++ } ++ ++ swdev->cpu_port = AR7240_PORT_CPU; ++ swdev->vlans = AR7240_MAX_VLANS; ++ swdev->ops = &ar7240_ops; ++ ++ if (register_switch(&as->swdev, ag->dev) < 0) ++ goto err_free; ++ ++ pr_info("%s: Found an %s\n", dev_name(&mii->dev), swdev->name); ++ ++ /* initialize defaults */ ++ for (i = 0; i < AR7240_MAX_VLANS; i++) ++ as->vlan_id[i] = i; ++ ++ as->vlan_table[0] = ar7240sw_port_mask_all(as); ++ ++ return as; ++ ++err_free: ++ kfree(as); ++ return NULL; ++} ++ ++static void link_function(struct work_struct *work) { ++ struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work); ++ struct ar7240sw *as = ag->phy_priv; ++ unsigned long flags; ++ u8 mask; ++ int i; ++ int status = 0; ++ ++ mask = ~as->swdata->phy_poll_mask; ++ for (i = 0; i < AR7240_NUM_PHYS; i++) { ++ int link; ++ ++ if (!(mask & BIT(i))) ++ continue; ++ ++ link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR); ++ if (link & BMSR_LSTATUS) { ++ status = 1; ++ break; ++ } ++ } ++ ++ spin_lock_irqsave(&ag->lock, flags); ++ if (status != ag->link) { ++ ag->link = status; ++ ag71xx_link_adjust(ag); ++ } ++ spin_unlock_irqrestore(&ag->lock, flags); ++ ++ schedule_delayed_work(&ag->link_work, HZ / 2); ++} ++ ++void ag71xx_ar7240_start(struct ag71xx *ag) ++{ ++ struct ar7240sw *as = ag->phy_priv; ++ ++ ar7240sw_reset(as); ++ ++ ag->speed = SPEED_1000; ++ ag->duplex = 1; ++ ++ ar7240_set_addr(as, ag->dev->dev_addr); ++ ar7240_hw_apply(&as->swdev); ++ ++ schedule_delayed_work(&ag->link_work, HZ / 10); ++} ++ ++void ag71xx_ar7240_stop(struct ag71xx *ag) ++{ ++ cancel_delayed_work_sync(&ag->link_work); ++} ++ ++int ag71xx_ar7240_init(struct ag71xx *ag) ++{ ++ struct ar7240sw *as; ++ ++ as = ar7240_probe(ag); ++ if (!as) ++ return -ENODEV; ++ ++ ag->phy_priv = as; ++ ar7240sw_reset(as); ++ ++ rwlock_init(&as->stats_lock); ++ INIT_DELAYED_WORK(&ag->link_work, link_function); ++ ++ return 0; ++} ++ ++void ag71xx_ar7240_cleanup(struct ag71xx *ag) ++{ ++ struct ar7240sw *as = ag->phy_priv; ++ ++ if (!as) ++ return; ++ ++ unregister_switch(&as->swdev); ++ kfree(as); ++ ag->phy_priv = NULL; ++} +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c +new file mode 100644 +index 0000000..7ec43b7 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar8216.c +@@ -0,0 +1,44 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * Special support for the Atheros ar8216 switch chip ++ * ++ * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#include "ag71xx.h" ++ ++#define AR8216_PACKET_TYPE_MASK 0xf ++#define AR8216_PACKET_TYPE_NORMAL 0 ++ ++#define AR8216_HEADER_LEN 2 ++ ++void ag71xx_add_ar8216_header(struct ag71xx *ag, struct sk_buff *skb) ++{ ++ skb_push(skb, AR8216_HEADER_LEN); ++ skb->data[0] = 0x10; ++ skb->data[1] = 0x80; ++} ++ ++int ag71xx_remove_ar8216_header(struct ag71xx *ag, struct sk_buff *skb, ++ int pktlen) ++{ ++ u8 type; ++ ++ type = skb->data[1] & AR8216_PACKET_TYPE_MASK; ++ switch (type) { ++ case AR8216_PACKET_TYPE_NORMAL: ++ break; ++ ++ default: ++ return -EINVAL; ++ } ++ ++ skb_pull(skb, AR8216_HEADER_LEN); ++ return 0; ++} +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c +new file mode 100644 +index 0000000..757a572 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_debugfs.c +@@ -0,0 +1,284 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#include <linux/debugfs.h> ++ ++#include "ag71xx.h" ++ ++static struct dentry *ag71xx_debugfs_root; ++ ++static int ag71xx_debugfs_generic_open(struct inode *inode, struct file *file) ++{ ++ file->private_data = inode->i_private; ++ return 0; ++} ++ ++void ag71xx_debugfs_update_int_stats(struct ag71xx *ag, u32 status) ++{ ++ if (status) ++ ag->debug.int_stats.total++; ++ if (status & AG71XX_INT_TX_PS) ++ ag->debug.int_stats.tx_ps++; ++ if (status & AG71XX_INT_TX_UR) ++ ag->debug.int_stats.tx_ur++; ++ if (status & AG71XX_INT_TX_BE) ++ ag->debug.int_stats.tx_be++; ++ if (status & AG71XX_INT_RX_PR) ++ ag->debug.int_stats.rx_pr++; ++ if (status & AG71XX_INT_RX_OF) ++ ag->debug.int_stats.rx_of++; ++ if (status & AG71XX_INT_RX_BE) ++ ag->debug.int_stats.rx_be++; ++} ++ ++static ssize_t read_file_int_stats(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos) ++{ ++#define PR_INT_STAT(_label, _field) \ ++ len += snprintf(buf + len, sizeof(buf) - len, \ ++ "%20s: %10lu\n", _label, ag->debug.int_stats._field); ++ ++ struct ag71xx *ag = file->private_data; ++ char buf[256]; ++ unsigned int len = 0; ++ ++ PR_INT_STAT("TX Packet Sent", tx_ps); ++ PR_INT_STAT("TX Underrun", tx_ur); ++ PR_INT_STAT("TX Bus Error", tx_be); ++ PR_INT_STAT("RX Packet Received", rx_pr); ++ PR_INT_STAT("RX Overflow", rx_of); ++ PR_INT_STAT("RX Bus Error", rx_be); ++ len += snprintf(buf + len, sizeof(buf) - len, "\n"); ++ PR_INT_STAT("Total", total); ++ ++ return simple_read_from_buffer(user_buf, count, ppos, buf, len); ++#undef PR_INT_STAT ++} ++ ++static const struct file_operations ag71xx_fops_int_stats = { ++ .open = ag71xx_debugfs_generic_open, ++ .read = read_file_int_stats, ++ .owner = THIS_MODULE ++}; ++ ++void ag71xx_debugfs_update_napi_stats(struct ag71xx *ag, int rx, int tx) ++{ ++ struct ag71xx_napi_stats *stats = &ag->debug.napi_stats; ++ ++ if (rx) { ++ stats->rx_count++; ++ stats->rx_packets += rx; ++ if (rx <= AG71XX_NAPI_WEIGHT) ++ stats->rx[rx]++; ++ if (rx > stats->rx_packets_max) ++ stats->rx_packets_max = rx; ++ } ++ ++ if (tx) { ++ stats->tx_count++; ++ stats->tx_packets += tx; ++ if (tx <= AG71XX_NAPI_WEIGHT) ++ stats->tx[tx]++; ++ if (tx > stats->tx_packets_max) ++ stats->tx_packets_max = tx; ++ } ++} ++ ++static ssize_t read_file_napi_stats(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos) ++{ ++ struct ag71xx *ag = file->private_data; ++ struct ag71xx_napi_stats *stats = &ag->debug.napi_stats; ++ char *buf; ++ unsigned int buflen; ++ unsigned int len = 0; ++ unsigned long rx_avg = 0; ++ unsigned long tx_avg = 0; ++ int ret; ++ int i; ++ ++ buflen = 2048; ++ buf = kmalloc(buflen, GFP_KERNEL); ++ if (!buf) ++ return -ENOMEM; ++ ++ if (stats->rx_count) ++ rx_avg = stats->rx_packets / stats->rx_count; ++ ++ if (stats->tx_count) ++ tx_avg = stats->tx_packets / stats->tx_count; ++ ++ len += snprintf(buf + len, buflen - len, "%3s %10s %10s\n", ++ "len", "rx", "tx"); ++ ++ for (i = 1; i <= AG71XX_NAPI_WEIGHT; i++) ++ len += snprintf(buf + len, buflen - len, ++ "%3d: %10lu %10lu\n", ++ i, stats->rx[i], stats->tx[i]); ++ ++ len += snprintf(buf + len, buflen - len, "\n"); ++ ++ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", ++ "sum", stats->rx_count, stats->tx_count); ++ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", ++ "avg", rx_avg, tx_avg); ++ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", ++ "max", stats->rx_packets_max, stats->tx_packets_max); ++ len += snprintf(buf + len, buflen - len, "%3s: %10lu %10lu\n", ++ "pkt", stats->rx_packets, stats->tx_packets); ++ ++ ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); ++ kfree(buf); ++ ++ return ret; ++} ++ ++static const struct file_operations ag71xx_fops_napi_stats = { ++ .open = ag71xx_debugfs_generic_open, ++ .read = read_file_napi_stats, ++ .owner = THIS_MODULE ++}; ++ ++#define DESC_PRINT_LEN 64 ++ ++static ssize_t read_file_ring(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos, ++ struct ag71xx *ag, ++ struct ag71xx_ring *ring, ++ unsigned desc_reg) ++{ ++ char *buf; ++ unsigned int buflen; ++ unsigned int len = 0; ++ unsigned long flags; ++ ssize_t ret; ++ int curr; ++ int dirty; ++ u32 desc_hw; ++ int i; ++ ++ buflen = (ring->size * DESC_PRINT_LEN); ++ buf = kmalloc(buflen, GFP_KERNEL); ++ if (!buf) ++ return -ENOMEM; ++ ++ len += snprintf(buf + len, buflen - len, ++ "Idx ... %-8s %-8s %-8s %-8s . %-10s\n", ++ "desc", "next", "data", "ctrl", "timestamp"); ++ ++ spin_lock_irqsave(&ag->lock, flags); ++ ++ curr = (ring->curr % ring->size); ++ dirty = (ring->dirty % ring->size); ++ desc_hw = ag71xx_rr(ag, desc_reg); ++ for (i = 0; i < ring->size; i++) { ++ struct ag71xx_buf *ab = &ring->buf[i]; ++ u32 desc_dma = ((u32) ring->descs_dma) + i * ring->desc_size; ++ ++ len += snprintf(buf + len, buflen - len, ++ "%3d %c%c%c %08x %08x %08x %08x %c %10lu\n", ++ i, ++ (i == curr) ? 'C' : ' ', ++ (i == dirty) ? 'D' : ' ', ++ (desc_hw == desc_dma) ? 'H' : ' ', ++ desc_dma, ++ ab->desc->next, ++ ab->desc->data, ++ ab->desc->ctrl, ++ (ab->desc->ctrl & DESC_EMPTY) ? 'E' : '*', ++ ab->timestamp); ++ } ++ ++ spin_unlock_irqrestore(&ag->lock, flags); ++ ++ ret = simple_read_from_buffer(user_buf, count, ppos, buf, len); ++ kfree(buf); ++ ++ return ret; ++} ++ ++static ssize_t read_file_tx_ring(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos) ++{ ++ struct ag71xx *ag = file->private_data; ++ ++ return read_file_ring(file, user_buf, count, ppos, ag, &ag->tx_ring, ++ AG71XX_REG_TX_DESC); ++} ++ ++static const struct file_operations ag71xx_fops_tx_ring = { ++ .open = ag71xx_debugfs_generic_open, ++ .read = read_file_tx_ring, ++ .owner = THIS_MODULE ++}; ++ ++static ssize_t read_file_rx_ring(struct file *file, char __user *user_buf, ++ size_t count, loff_t *ppos) ++{ ++ struct ag71xx *ag = file->private_data; ++ ++ return read_file_ring(file, user_buf, count, ppos, ag, &ag->rx_ring, ++ AG71XX_REG_RX_DESC); ++} ++ ++static const struct file_operations ag71xx_fops_rx_ring = { ++ .open = ag71xx_debugfs_generic_open, ++ .read = read_file_rx_ring, ++ .owner = THIS_MODULE ++}; ++ ++void ag71xx_debugfs_exit(struct ag71xx *ag) ++{ ++ debugfs_remove_recursive(ag->debug.debugfs_dir); ++} ++ ++int ag71xx_debugfs_init(struct ag71xx *ag) ++{ ++ struct device *dev = &ag->pdev->dev; ++ ++ ag->debug.debugfs_dir = debugfs_create_dir(dev_name(dev), ++ ag71xx_debugfs_root); ++ if (!ag->debug.debugfs_dir) { ++ dev_err(dev, "unable to create debugfs directory\n"); ++ return -ENOENT; ++ } ++ ++ debugfs_create_file("int_stats", S_IRUGO, ag->debug.debugfs_dir, ++ ag, &ag71xx_fops_int_stats); ++ debugfs_create_file("napi_stats", S_IRUGO, ag->debug.debugfs_dir, ++ ag, &ag71xx_fops_napi_stats); ++ debugfs_create_file("tx_ring", S_IRUGO, ag->debug.debugfs_dir, ++ ag, &ag71xx_fops_tx_ring); ++ debugfs_create_file("rx_ring", S_IRUGO, ag->debug.debugfs_dir, ++ ag, &ag71xx_fops_rx_ring); ++ ++ return 0; ++} ++ ++int ag71xx_debugfs_root_init(void) ++{ ++ if (ag71xx_debugfs_root) ++ return -EBUSY; ++ ++ ag71xx_debugfs_root = debugfs_create_dir(KBUILD_MODNAME, NULL); ++ if (!ag71xx_debugfs_root) ++ return -ENOENT; ++ ++ return 0; ++} ++ ++void ag71xx_debugfs_root_exit(void) ++{ ++ debugfs_remove(ag71xx_debugfs_root); ++ ag71xx_debugfs_root = NULL; ++} +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c +new file mode 100644 +index 0000000..498fbed +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c +@@ -0,0 +1,124 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#include "ag71xx.h" ++ ++static int ag71xx_ethtool_get_settings(struct net_device *dev, ++ struct ethtool_cmd *cmd) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ struct phy_device *phydev = ag->phy_dev; ++ ++ if (!phydev) ++ return -ENODEV; ++ ++ return phy_ethtool_gset(phydev, cmd); ++} ++ ++static int ag71xx_ethtool_set_settings(struct net_device *dev, ++ struct ethtool_cmd *cmd) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ struct phy_device *phydev = ag->phy_dev; ++ ++ if (!phydev) ++ return -ENODEV; ++ ++ return phy_ethtool_sset(phydev, cmd); ++} ++ ++static void ag71xx_ethtool_get_drvinfo(struct net_device *dev, ++ struct ethtool_drvinfo *info) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ strcpy(info->driver, ag->pdev->dev.driver->name); ++ strcpy(info->version, AG71XX_DRV_VERSION); ++ strcpy(info->bus_info, dev_name(&ag->pdev->dev)); ++} ++ ++static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ return ag->msg_enable; ++} ++ ++static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ ag->msg_enable = msg_level; ++} ++ ++static void ag71xx_ethtool_get_ringparam(struct net_device *dev, ++ struct ethtool_ringparam *er) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ er->tx_max_pending = AG71XX_TX_RING_SIZE_MAX; ++ er->rx_max_pending = AG71XX_RX_RING_SIZE_MAX; ++ er->rx_mini_max_pending = 0; ++ er->rx_jumbo_max_pending = 0; ++ ++ er->tx_pending = ag->tx_ring.size; ++ er->rx_pending = ag->rx_ring.size; ++ er->rx_mini_pending = 0; ++ er->rx_jumbo_pending = 0; ++} ++ ++static int ag71xx_ethtool_set_ringparam(struct net_device *dev, ++ struct ethtool_ringparam *er) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ unsigned tx_size; ++ unsigned rx_size; ++ int err; ++ ++ if (er->rx_mini_pending != 0|| ++ er->rx_jumbo_pending != 0 || ++ er->rx_pending == 0 || ++ er->tx_pending == 0) ++ return -EINVAL; ++ ++ tx_size = er->tx_pending < AG71XX_TX_RING_SIZE_MAX ? ++ er->tx_pending : AG71XX_TX_RING_SIZE_MAX; ++ ++ rx_size = er->rx_pending < AG71XX_RX_RING_SIZE_MAX ? ++ er->rx_pending : AG71XX_RX_RING_SIZE_MAX; ++ ++ if (netif_running(dev)) { ++ err = dev->netdev_ops->ndo_stop(dev); ++ if (err) ++ return err; ++ } ++ ++ ag->tx_ring.size = tx_size; ++ ag->rx_ring.size = rx_size; ++ ++ if (netif_running(dev)) ++ err = dev->netdev_ops->ndo_open(dev); ++ ++ return err; ++} ++ ++struct ethtool_ops ag71xx_ethtool_ops = { ++ .set_settings = ag71xx_ethtool_set_settings, ++ .get_settings = ag71xx_ethtool_get_settings, ++ .get_drvinfo = ag71xx_ethtool_get_drvinfo, ++ .get_msglevel = ag71xx_ethtool_get_msglevel, ++ .set_msglevel = ag71xx_ethtool_set_msglevel, ++ .get_ringparam = ag71xx_ethtool_get_ringparam, ++ .set_ringparam = ag71xx_ethtool_set_ringparam, ++ .get_link = ethtool_op_get_link, ++}; +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +new file mode 100644 +index 0000000..d010373 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_main.c +@@ -0,0 +1,1325 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#include "ag71xx.h" ++ ++#define AG71XX_DEFAULT_MSG_ENABLE \ ++ (NETIF_MSG_DRV \ ++ | NETIF_MSG_PROBE \ ++ | NETIF_MSG_LINK \ ++ | NETIF_MSG_TIMER \ ++ | NETIF_MSG_IFDOWN \ ++ | NETIF_MSG_IFUP \ ++ | NETIF_MSG_RX_ERR \ ++ | NETIF_MSG_TX_ERR) ++ ++static int ag71xx_msg_level = -1; ++ ++module_param_named(msg_level, ag71xx_msg_level, int, 0); ++MODULE_PARM_DESC(msg_level, "Message level (-1=defaults,0=none,...,16=all)"); ++ ++#define ETH_SWITCH_HEADER_LEN 2 ++ ++static inline unsigned int ag71xx_max_frame_len(unsigned int mtu) ++{ ++ return ETH_SWITCH_HEADER_LEN + ETH_HLEN + VLAN_HLEN + mtu + ETH_FCS_LEN; ++} ++ ++static void ag71xx_dump_dma_regs(struct ag71xx *ag) ++{ ++ DBG("%s: dma_tx_ctrl=%08x, dma_tx_desc=%08x, dma_tx_status=%08x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_TX_CTRL), ++ ag71xx_rr(ag, AG71XX_REG_TX_DESC), ++ ag71xx_rr(ag, AG71XX_REG_TX_STATUS)); ++ ++ DBG("%s: dma_rx_ctrl=%08x, dma_rx_desc=%08x, dma_rx_status=%08x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_RX_CTRL), ++ ag71xx_rr(ag, AG71XX_REG_RX_DESC), ++ ag71xx_rr(ag, AG71XX_REG_RX_STATUS)); ++} ++ ++static void ag71xx_dump_regs(struct ag71xx *ag) ++{ ++ DBG("%s: mac_cfg1=%08x, mac_cfg2=%08x, ipg=%08x, hdx=%08x, mfl=%08x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_MAC_CFG1), ++ ag71xx_rr(ag, AG71XX_REG_MAC_CFG2), ++ ag71xx_rr(ag, AG71XX_REG_MAC_IPG), ++ ag71xx_rr(ag, AG71XX_REG_MAC_HDX), ++ ag71xx_rr(ag, AG71XX_REG_MAC_MFL)); ++ DBG("%s: mac_ifctl=%08x, mac_addr1=%08x, mac_addr2=%08x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL), ++ ag71xx_rr(ag, AG71XX_REG_MAC_ADDR1), ++ ag71xx_rr(ag, AG71XX_REG_MAC_ADDR2)); ++ DBG("%s: fifo_cfg0=%08x, fifo_cfg1=%08x, fifo_cfg2=%08x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2)); ++ DBG("%s: fifo_cfg3=%08x, fifo_cfg4=%08x, fifo_cfg5=%08x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5)); ++} ++ ++static inline void ag71xx_dump_intr(struct ag71xx *ag, char *label, u32 intr) ++{ ++ DBG("%s: %s intr=%08x %s%s%s%s%s%s\n", ++ ag->dev->name, label, intr, ++ (intr & AG71XX_INT_TX_PS) ? "TXPS " : "", ++ (intr & AG71XX_INT_TX_UR) ? "TXUR " : "", ++ (intr & AG71XX_INT_TX_BE) ? "TXBE " : "", ++ (intr & AG71XX_INT_RX_PR) ? "RXPR " : "", ++ (intr & AG71XX_INT_RX_OF) ? "RXOF " : "", ++ (intr & AG71XX_INT_RX_BE) ? "RXBE " : ""); ++} ++ ++static void ag71xx_ring_free(struct ag71xx_ring *ring) ++{ ++ kfree(ring->buf); ++ ++ if (ring->descs_cpu) ++ dma_free_coherent(NULL, ring->size * ring->desc_size, ++ ring->descs_cpu, ring->descs_dma); ++} ++ ++static int ag71xx_ring_alloc(struct ag71xx_ring *ring) ++{ ++ int err; ++ int i; ++ ++ ring->desc_size = sizeof(struct ag71xx_desc); ++ if (ring->desc_size % cache_line_size()) { ++ DBG("ag71xx: ring %p, desc size %u rounded to %u\n", ++ ring, ring->desc_size, ++ roundup(ring->desc_size, cache_line_size())); ++ ring->desc_size = roundup(ring->desc_size, cache_line_size()); ++ } ++ ++ ring->descs_cpu = dma_alloc_coherent(NULL, ring->size * ring->desc_size, ++ &ring->descs_dma, GFP_ATOMIC); ++ if (!ring->descs_cpu) { ++ err = -ENOMEM; ++ goto err; ++ } ++ ++ ++ ring->buf = kzalloc(ring->size * sizeof(*ring->buf), GFP_KERNEL); ++ if (!ring->buf) { ++ err = -ENOMEM; ++ goto err; ++ } ++ ++ for (i = 0; i < ring->size; i++) { ++ int idx = i * ring->desc_size; ++ ring->buf[i].desc = (struct ag71xx_desc *)&ring->descs_cpu[idx]; ++ DBG("ag71xx: ring %p, desc %d at %p\n", ++ ring, i, ring->buf[i].desc); ++ } ++ ++ return 0; ++ ++err: ++ return err; ++} ++ ++static void ag71xx_ring_tx_clean(struct ag71xx *ag) ++{ ++ struct ag71xx_ring *ring = &ag->tx_ring; ++ struct net_device *dev = ag->dev; ++ u32 bytes_compl = 0, pkts_compl = 0; ++ ++ while (ring->curr != ring->dirty) { ++ u32 i = ring->dirty % ring->size; ++ ++ if (!ag71xx_desc_empty(ring->buf[i].desc)) { ++ ring->buf[i].desc->ctrl = 0; ++ dev->stats.tx_errors++; ++ } ++ ++ if (ring->buf[i].skb) { ++ bytes_compl += ring->buf[i].len; ++ pkts_compl++; ++ dev_kfree_skb_any(ring->buf[i].skb); ++ } ++ ring->buf[i].skb = NULL; ++ ring->dirty++; ++ } ++ ++ /* flush descriptors */ ++ wmb(); ++ ++ netdev_completed_queue(dev, pkts_compl, bytes_compl); ++} ++ ++static void ag71xx_ring_tx_init(struct ag71xx *ag) ++{ ++ struct ag71xx_ring *ring = &ag->tx_ring; ++ int i; ++ ++ for (i = 0; i < ring->size; i++) { ++ ring->buf[i].desc->next = (u32) (ring->descs_dma + ++ ring->desc_size * ((i + 1) % ring->size)); ++ ++ ring->buf[i].desc->ctrl = DESC_EMPTY; ++ ring->buf[i].skb = NULL; ++ } ++ ++ /* flush descriptors */ ++ wmb(); ++ ++ ring->curr = 0; ++ ring->dirty = 0; ++ netdev_reset_queue(ag->dev); ++} ++ ++static void ag71xx_ring_rx_clean(struct ag71xx *ag) ++{ ++ struct ag71xx_ring *ring = &ag->rx_ring; ++ int i; ++ ++ if (!ring->buf) ++ return; ++ ++ for (i = 0; i < ring->size; i++) ++ if (ring->buf[i].rx_buf) { ++ dma_unmap_single(&ag->dev->dev, ring->buf[i].dma_addr, ++ ag->rx_buf_size, DMA_FROM_DEVICE); ++ kfree(ring->buf[i].rx_buf); ++ } ++} ++ ++static int ag71xx_buffer_offset(struct ag71xx *ag) ++{ ++ int offset = NET_SKB_PAD; ++ ++ /* ++ * On AR71xx/AR91xx packets must be 4-byte aligned. ++ * ++ * When using builtin AR8216 support, hardware adds a 2-byte header, ++ * so we don't need any extra alignment in that case. ++ */ ++ if (!ag71xx_get_pdata(ag)->is_ar724x || ag71xx_has_ar8216(ag)) ++ return offset; ++ ++ return offset + NET_IP_ALIGN; ++} ++ ++static bool ag71xx_fill_rx_buf(struct ag71xx *ag, struct ag71xx_buf *buf, ++ int offset) ++{ ++ void *data; ++ ++ data = kmalloc(ag->rx_buf_size + ++ SKB_DATA_ALIGN(sizeof(struct skb_shared_info)), ++ GFP_ATOMIC); ++ if (!data) ++ return false; ++ ++ buf->rx_buf = data; ++ buf->dma_addr = dma_map_single(&ag->dev->dev, data, ag->rx_buf_size, ++ DMA_FROM_DEVICE); ++ buf->desc->data = (u32) buf->dma_addr + offset; ++ return true; ++} ++ ++static int ag71xx_ring_rx_init(struct ag71xx *ag) ++{ ++ struct ag71xx_ring *ring = &ag->rx_ring; ++ unsigned int i; ++ int ret; ++ int offset = ag71xx_buffer_offset(ag); ++ ++ ret = 0; ++ for (i = 0; i < ring->size; i++) { ++ ring->buf[i].desc->next = (u32) (ring->descs_dma + ++ ring->desc_size * ((i + 1) % ring->size)); ++ ++ DBG("ag71xx: RX desc at %p, next is %08x\n", ++ ring->buf[i].desc, ++ ring->buf[i].desc->next); ++ } ++ ++ for (i = 0; i < ring->size; i++) { ++ if (!ag71xx_fill_rx_buf(ag, &ring->buf[i], offset)) { ++ ret = -ENOMEM; ++ break; ++ } ++ ++ ring->buf[i].desc->ctrl = DESC_EMPTY; ++ } ++ ++ /* flush descriptors */ ++ wmb(); ++ ++ ring->curr = 0; ++ ring->dirty = 0; ++ ++ return ret; ++} ++ ++static int ag71xx_ring_rx_refill(struct ag71xx *ag) ++{ ++ struct ag71xx_ring *ring = &ag->rx_ring; ++ unsigned int count; ++ int offset = ag71xx_buffer_offset(ag); ++ ++ count = 0; ++ for (; ring->curr - ring->dirty > 0; ring->dirty++) { ++ unsigned int i; ++ ++ i = ring->dirty % ring->size; ++ ++ if (!ring->buf[i].rx_buf && ++ !ag71xx_fill_rx_buf(ag, &ring->buf[i], offset)) ++ break; ++ ++ ring->buf[i].desc->ctrl = DESC_EMPTY; ++ count++; ++ } ++ ++ /* flush descriptors */ ++ wmb(); ++ ++ DBG("%s: %u rx descriptors refilled\n", ag->dev->name, count); ++ ++ return count; ++} ++ ++static int ag71xx_rings_init(struct ag71xx *ag) ++{ ++ int ret; ++ ++ ret = ag71xx_ring_alloc(&ag->tx_ring); ++ if (ret) ++ return ret; ++ ++ ag71xx_ring_tx_init(ag); ++ ++ ret = ag71xx_ring_alloc(&ag->rx_ring); ++ if (ret) ++ return ret; ++ ++ ret = ag71xx_ring_rx_init(ag); ++ return ret; ++} ++ ++static void ag71xx_rings_cleanup(struct ag71xx *ag) ++{ ++ ag71xx_ring_rx_clean(ag); ++ ag71xx_ring_free(&ag->rx_ring); ++ ++ ag71xx_ring_tx_clean(ag); ++ netdev_reset_queue(ag->dev); ++ ag71xx_ring_free(&ag->tx_ring); ++} ++ ++static unsigned char *ag71xx_speed_str(struct ag71xx *ag) ++{ ++ switch (ag->speed) { ++ case SPEED_1000: ++ return "1000"; ++ case SPEED_100: ++ return "100"; ++ case SPEED_10: ++ return "10"; ++ } ++ ++ return "?"; ++} ++ ++static void ag71xx_hw_set_macaddr(struct ag71xx *ag, unsigned char *mac) ++{ ++ u32 t; ++ ++ t = (((u32) mac[5]) << 24) | (((u32) mac[4]) << 16) ++ | (((u32) mac[3]) << 8) | ((u32) mac[2]); ++ ++ ag71xx_wr(ag, AG71XX_REG_MAC_ADDR1, t); ++ ++ t = (((u32) mac[1]) << 24) | (((u32) mac[0]) << 16); ++ ag71xx_wr(ag, AG71XX_REG_MAC_ADDR2, t); ++} ++ ++static void ag71xx_dma_reset(struct ag71xx *ag) ++{ ++ u32 val; ++ int i; ++ ++ ag71xx_dump_dma_regs(ag); ++ ++ /* stop RX and TX */ ++ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0); ++ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0); ++ ++ /* ++ * give the hardware some time to really stop all rx/tx activity ++ * clearing the descriptors too early causes random memory corruption ++ */ ++ mdelay(1); ++ ++ /* clear descriptor addresses */ ++ ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->stop_desc_dma); ++ ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->stop_desc_dma); ++ ++ /* clear pending RX/TX interrupts */ ++ for (i = 0; i < 256; i++) { ++ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR); ++ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); ++ } ++ ++ /* clear pending errors */ ++ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE | RX_STATUS_OF); ++ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE | TX_STATUS_UR); ++ ++ val = ag71xx_rr(ag, AG71XX_REG_RX_STATUS); ++ if (val) ++ pr_alert("%s: unable to clear DMA Rx status: %08x\n", ++ ag->dev->name, val); ++ ++ val = ag71xx_rr(ag, AG71XX_REG_TX_STATUS); ++ ++ /* mask out reserved bits */ ++ val &= ~0xff000000; ++ ++ if (val) ++ pr_alert("%s: unable to clear DMA Tx status: %08x\n", ++ ag->dev->name, val); ++ ++ ag71xx_dump_dma_regs(ag); ++} ++ ++#define MAC_CFG1_INIT (MAC_CFG1_RXE | MAC_CFG1_TXE | \ ++ MAC_CFG1_SRX | MAC_CFG1_STX) ++ ++#define FIFO_CFG0_INIT (FIFO_CFG0_ALL << FIFO_CFG0_ENABLE_SHIFT) ++ ++#define FIFO_CFG4_INIT (FIFO_CFG4_DE | FIFO_CFG4_DV | FIFO_CFG4_FC | \ ++ FIFO_CFG4_CE | FIFO_CFG4_CR | FIFO_CFG4_LM | \ ++ FIFO_CFG4_LO | FIFO_CFG4_OK | FIFO_CFG4_MC | \ ++ FIFO_CFG4_BC | FIFO_CFG4_DR | FIFO_CFG4_LE | \ ++ FIFO_CFG4_CF | FIFO_CFG4_PF | FIFO_CFG4_UO | \ ++ FIFO_CFG4_VT) ++ ++#define FIFO_CFG5_INIT (FIFO_CFG5_DE | FIFO_CFG5_DV | FIFO_CFG5_FC | \ ++ FIFO_CFG5_CE | FIFO_CFG5_LO | FIFO_CFG5_OK | \ ++ FIFO_CFG5_MC | FIFO_CFG5_BC | FIFO_CFG5_DR | \ ++ FIFO_CFG5_CF | FIFO_CFG5_PF | FIFO_CFG5_VT | \ ++ FIFO_CFG5_LE | FIFO_CFG5_FT | FIFO_CFG5_16 | \ ++ FIFO_CFG5_17 | FIFO_CFG5_SF) ++ ++static void ag71xx_hw_stop(struct ag71xx *ag) ++{ ++ /* disable all interrupts and stop the rx/tx engine */ ++ ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, 0); ++ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, 0); ++ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, 0); ++} ++ ++static void ag71xx_hw_setup(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ ++ /* setup MAC configuration registers */ ++ ag71xx_wr(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_INIT); ++ ++ ag71xx_sb(ag, AG71XX_REG_MAC_CFG2, ++ MAC_CFG2_PAD_CRC_EN | MAC_CFG2_LEN_CHECK); ++ ++ /* setup max frame length to zero */ ++ ag71xx_wr(ag, AG71XX_REG_MAC_MFL, 0); ++ ++ /* setup FIFO configuration registers */ ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG0, FIFO_CFG0_INIT); ++ if (pdata->is_ar724x) { ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, pdata->fifo_cfg1); ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, pdata->fifo_cfg2); ++ } else { ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG1, 0x0fff0000); ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG2, 0x00001fff); ++ } ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG4, FIFO_CFG4_INIT); ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, FIFO_CFG5_INIT); ++} ++ ++static void ag71xx_hw_init(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ u32 reset_mask = pdata->reset_bit; ++ ++ ag71xx_hw_stop(ag); ++ ++ if (pdata->is_ar724x) { ++ u32 reset_phy = reset_mask; ++ ++ reset_phy &= AR71XX_RESET_GE0_PHY | AR71XX_RESET_GE1_PHY; ++ reset_mask &= ~(AR71XX_RESET_GE0_PHY | AR71XX_RESET_GE1_PHY); ++ ++ ath79_device_reset_set(reset_phy); ++ mdelay(50); ++ ath79_device_reset_clear(reset_phy); ++ mdelay(200); ++ } ++ ++ ag71xx_sb(ag, AG71XX_REG_MAC_CFG1, MAC_CFG1_SR); ++ udelay(20); ++ ++ ath79_device_reset_set(reset_mask); ++ mdelay(100); ++ ath79_device_reset_clear(reset_mask); ++ mdelay(200); ++ ++ ag71xx_hw_setup(ag); ++ ++ ag71xx_dma_reset(ag); ++} ++ ++static void ag71xx_fast_reset(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ struct net_device *dev = ag->dev; ++ u32 reset_mask = pdata->reset_bit; ++ u32 rx_ds, tx_ds; ++ u32 mii_reg; ++ ++ reset_mask &= AR71XX_RESET_GE0_MAC | AR71XX_RESET_GE1_MAC; ++ ++ mii_reg = ag71xx_rr(ag, AG71XX_REG_MII_CFG); ++ rx_ds = ag71xx_rr(ag, AG71XX_REG_RX_DESC); ++ tx_ds = ag71xx_rr(ag, AG71XX_REG_TX_DESC); ++ ++ ath79_device_reset_set(reset_mask); ++ udelay(10); ++ ath79_device_reset_clear(reset_mask); ++ udelay(10); ++ ++ ag71xx_dma_reset(ag); ++ ag71xx_hw_setup(ag); ++ ++ /* setup max frame length */ ++ ag71xx_wr(ag, AG71XX_REG_MAC_MFL, ++ ag71xx_max_frame_len(ag->dev->mtu)); ++ ++ ag71xx_wr(ag, AG71XX_REG_RX_DESC, rx_ds); ++ ag71xx_wr(ag, AG71XX_REG_TX_DESC, tx_ds); ++ ag71xx_wr(ag, AG71XX_REG_MII_CFG, mii_reg); ++ ++ ag71xx_hw_set_macaddr(ag, dev->dev_addr); ++} ++ ++static void ag71xx_hw_start(struct ag71xx *ag) ++{ ++ /* start RX engine */ ++ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE); ++ ++ /* enable interrupts */ ++ ag71xx_wr(ag, AG71XX_REG_INT_ENABLE, AG71XX_INT_INIT); ++} ++ ++void ag71xx_link_adjust(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ u32 cfg2; ++ u32 ifctl; ++ u32 fifo5; ++ ++ if (!ag->link) { ++ ag71xx_hw_stop(ag); ++ netif_carrier_off(ag->dev); ++ if (netif_msg_link(ag)) ++ pr_info("%s: link down\n", ag->dev->name); ++ return; ++ } ++ ++ if (pdata->is_ar724x) ++ ag71xx_fast_reset(ag); ++ ++ cfg2 = ag71xx_rr(ag, AG71XX_REG_MAC_CFG2); ++ cfg2 &= ~(MAC_CFG2_IF_1000 | MAC_CFG2_IF_10_100 | MAC_CFG2_FDX); ++ cfg2 |= (ag->duplex) ? MAC_CFG2_FDX : 0; ++ ++ ifctl = ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL); ++ ifctl &= ~(MAC_IFCTL_SPEED); ++ ++ fifo5 = ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5); ++ fifo5 &= ~FIFO_CFG5_BM; ++ ++ switch (ag->speed) { ++ case SPEED_1000: ++ cfg2 |= MAC_CFG2_IF_1000; ++ fifo5 |= FIFO_CFG5_BM; ++ break; ++ case SPEED_100: ++ cfg2 |= MAC_CFG2_IF_10_100; ++ ifctl |= MAC_IFCTL_SPEED; ++ break; ++ case SPEED_10: ++ cfg2 |= MAC_CFG2_IF_10_100; ++ break; ++ default: ++ BUG(); ++ return; ++ } ++ ++ if (pdata->is_ar91xx) ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x00780fff); ++ else if (pdata->is_ar724x) ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, pdata->fifo_cfg3); ++ else ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG3, 0x008001ff); ++ ++ if (pdata->set_speed) ++ pdata->set_speed(ag->speed); ++ ++ ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2); ++ ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5); ++ ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl); ++ ag71xx_hw_start(ag); ++ ++ netif_carrier_on(ag->dev); ++ if (netif_msg_link(ag)) ++ pr_info("%s: link up (%sMbps/%s duplex)\n", ++ ag->dev->name, ++ ag71xx_speed_str(ag), ++ (DUPLEX_FULL == ag->duplex) ? "Full" : "Half"); ++ ++ DBG("%s: fifo_cfg0=%#x, fifo_cfg1=%#x, fifo_cfg2=%#x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG0), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG1), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG2)); ++ ++ DBG("%s: fifo_cfg3=%#x, fifo_cfg4=%#x, fifo_cfg5=%#x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG3), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG4), ++ ag71xx_rr(ag, AG71XX_REG_FIFO_CFG5)); ++ ++ DBG("%s: mac_cfg2=%#x, mac_ifctl=%#x\n", ++ ag->dev->name, ++ ag71xx_rr(ag, AG71XX_REG_MAC_CFG2), ++ ag71xx_rr(ag, AG71XX_REG_MAC_IFCTL)); ++} ++ ++static int ag71xx_open(struct net_device *dev) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ unsigned int max_frame_len; ++ int ret; ++ ++ max_frame_len = ag71xx_max_frame_len(dev->mtu); ++ ag->rx_buf_size = max_frame_len + NET_SKB_PAD + NET_IP_ALIGN; ++ ++ /* setup max frame length */ ++ ag71xx_wr(ag, AG71XX_REG_MAC_MFL, max_frame_len); ++ ++ ret = ag71xx_rings_init(ag); ++ if (ret) ++ goto err; ++ ++ napi_enable(&ag->napi); ++ ++ netif_carrier_off(dev); ++ ag71xx_phy_start(ag); ++ ++ ag71xx_wr(ag, AG71XX_REG_TX_DESC, ag->tx_ring.descs_dma); ++ ag71xx_wr(ag, AG71XX_REG_RX_DESC, ag->rx_ring.descs_dma); ++ ++ ag71xx_hw_set_macaddr(ag, dev->dev_addr); ++ ++ netif_start_queue(dev); ++ ++ return 0; ++ ++err: ++ ag71xx_rings_cleanup(ag); ++ return ret; ++} ++ ++static int ag71xx_stop(struct net_device *dev) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ unsigned long flags; ++ ++ netif_carrier_off(dev); ++ ag71xx_phy_stop(ag); ++ ++ spin_lock_irqsave(&ag->lock, flags); ++ ++ netif_stop_queue(dev); ++ ++ ag71xx_hw_stop(ag); ++ ag71xx_dma_reset(ag); ++ ++ napi_disable(&ag->napi); ++ del_timer_sync(&ag->oom_timer); ++ ++ spin_unlock_irqrestore(&ag->lock, flags); ++ ++ ag71xx_rings_cleanup(ag); ++ ++ return 0; ++} ++ ++static netdev_tx_t ag71xx_hard_start_xmit(struct sk_buff *skb, ++ struct net_device *dev) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ struct ag71xx_ring *ring = &ag->tx_ring; ++ struct ag71xx_desc *desc; ++ dma_addr_t dma_addr; ++ int i; ++ ++ i = ring->curr % ring->size; ++ desc = ring->buf[i].desc; ++ ++ if (!ag71xx_desc_empty(desc)) ++ goto err_drop; ++ ++ if (ag71xx_has_ar8216(ag)) ++ ag71xx_add_ar8216_header(ag, skb); ++ ++ if (skb->len <= 0) { ++ DBG("%s: packet len is too small\n", ag->dev->name); ++ goto err_drop; ++ } ++ ++ dma_addr = dma_map_single(&dev->dev, skb->data, skb->len, ++ DMA_TO_DEVICE); ++ ++ netdev_sent_queue(dev, skb->len); ++ ring->buf[i].len = skb->len; ++ ring->buf[i].skb = skb; ++ ring->buf[i].timestamp = jiffies; ++ ++ /* setup descriptor fields */ ++ desc->data = (u32) dma_addr; ++ desc->ctrl = skb->len & ag->desc_pktlen_mask; ++ ++ /* flush descriptor */ ++ wmb(); ++ ++ ring->curr++; ++ if (ring->curr == (ring->dirty + ring->size)) { ++ DBG("%s: tx queue full\n", ag->dev->name); ++ netif_stop_queue(dev); ++ } ++ ++ DBG("%s: packet injected into TX queue\n", ag->dev->name); ++ ++ /* enable TX engine */ ++ ag71xx_wr(ag, AG71XX_REG_TX_CTRL, TX_CTRL_TXE); ++ ++ return NETDEV_TX_OK; ++ ++err_drop: ++ dev->stats.tx_dropped++; ++ ++ dev_kfree_skb(skb); ++ return NETDEV_TX_OK; ++} ++ ++static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ int ret; ++ ++ switch (cmd) { ++ case SIOCETHTOOL: ++ if (ag->phy_dev == NULL) ++ break; ++ ++ spin_lock_irq(&ag->lock); ++ ret = phy_ethtool_ioctl(ag->phy_dev, (void *) ifr->ifr_data); ++ spin_unlock_irq(&ag->lock); ++ return ret; ++ ++ case SIOCSIFHWADDR: ++ if (copy_from_user ++ (dev->dev_addr, ifr->ifr_data, sizeof(dev->dev_addr))) ++ return -EFAULT; ++ return 0; ++ ++ case SIOCGIFHWADDR: ++ if (copy_to_user ++ (ifr->ifr_data, dev->dev_addr, sizeof(dev->dev_addr))) ++ return -EFAULT; ++ return 0; ++ ++ case SIOCGMIIPHY: ++ case SIOCGMIIREG: ++ case SIOCSMIIREG: ++ if (ag->phy_dev == NULL) ++ break; ++ ++ return phy_mii_ioctl(ag->phy_dev, ifr, cmd); ++ ++ default: ++ break; ++ } ++ ++ return -EOPNOTSUPP; ++} ++ ++static void ag71xx_oom_timer_handler(unsigned long data) ++{ ++ struct net_device *dev = (struct net_device *) data; ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ napi_schedule(&ag->napi); ++} ++ ++static void ag71xx_tx_timeout(struct net_device *dev) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ if (netif_msg_tx_err(ag)) ++ pr_info("%s: tx timeout\n", ag->dev->name); ++ ++ schedule_work(&ag->restart_work); ++} ++ ++static void ag71xx_restart_work_func(struct work_struct *work) ++{ ++ struct ag71xx *ag = container_of(work, struct ag71xx, restart_work); ++ ++ if (ag71xx_get_pdata(ag)->is_ar724x) { ++ ag->link = 0; ++ ag71xx_link_adjust(ag); ++ return; ++ } ++ ++ ag71xx_stop(ag->dev); ++ ag71xx_open(ag->dev); ++} ++ ++static bool ag71xx_check_dma_stuck(struct ag71xx *ag, unsigned long timestamp) ++{ ++ u32 rx_sm, tx_sm, rx_fd; ++ ++ if (likely(time_before(jiffies, timestamp + HZ/10))) ++ return false; ++ ++ if (!netif_carrier_ok(ag->dev)) ++ return false; ++ ++ rx_sm = ag71xx_rr(ag, AG71XX_REG_RX_SM); ++ if ((rx_sm & 0x7) == 0x3 && ((rx_sm >> 4) & 0x7) == 0x6) ++ return true; ++ ++ tx_sm = ag71xx_rr(ag, AG71XX_REG_TX_SM); ++ rx_fd = ag71xx_rr(ag, AG71XX_REG_FIFO_DEPTH); ++ if (((tx_sm >> 4) & 0x7) == 0 && ((rx_sm & 0x7) == 0) && ++ ((rx_sm >> 4) & 0x7) == 0 && rx_fd == 0) ++ return true; ++ ++ return false; ++} ++ ++static int ag71xx_tx_packets(struct ag71xx *ag) ++{ ++ struct ag71xx_ring *ring = &ag->tx_ring; ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ int sent = 0; ++ int bytes_compl = 0; ++ ++ DBG("%s: processing TX ring\n", ag->dev->name); ++ ++ while (ring->dirty != ring->curr) { ++ unsigned int i = ring->dirty % ring->size; ++ struct ag71xx_desc *desc = ring->buf[i].desc; ++ struct sk_buff *skb = ring->buf[i].skb; ++ int len = ring->buf[i].len; ++ ++ if (!ag71xx_desc_empty(desc)) { ++ if (pdata->is_ar7240 && ++ ag71xx_check_dma_stuck(ag, ring->buf[i].timestamp)) ++ schedule_work(&ag->restart_work); ++ break; ++ } ++ ++ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_PS); ++ ++ bytes_compl += len; ++ ag->dev->stats.tx_bytes += len; ++ ag->dev->stats.tx_packets++; ++ ++ dev_kfree_skb_any(skb); ++ ring->buf[i].skb = NULL; ++ ++ ring->dirty++; ++ sent++; ++ } ++ ++ DBG("%s: %d packets sent out\n", ag->dev->name, sent); ++ ++ if (!sent) ++ return 0; ++ ++ netdev_completed_queue(ag->dev, sent, bytes_compl); ++ if ((ring->curr - ring->dirty) < (ring->size * 3) / 4) ++ netif_wake_queue(ag->dev); ++ ++ return sent; ++} ++ ++static int ag71xx_rx_packets(struct ag71xx *ag, int limit) ++{ ++ struct net_device *dev = ag->dev; ++ struct ag71xx_ring *ring = &ag->rx_ring; ++ int offset = ag71xx_buffer_offset(ag); ++ unsigned int pktlen_mask = ag->desc_pktlen_mask; ++ int done = 0; ++ ++ DBG("%s: rx packets, limit=%d, curr=%u, dirty=%u\n", ++ dev->name, limit, ring->curr, ring->dirty); ++ ++ while (done < limit) { ++ unsigned int i = ring->curr % ring->size; ++ struct ag71xx_desc *desc = ring->buf[i].desc; ++ struct sk_buff *skb; ++ int pktlen; ++ int err = 0; ++ ++ if (ag71xx_desc_empty(desc)) ++ break; ++ ++ if ((ring->dirty + ring->size) == ring->curr) { ++ ag71xx_assert(0); ++ break; ++ } ++ ++ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_PR); ++ ++ pktlen = desc->ctrl & pktlen_mask; ++ pktlen -= ETH_FCS_LEN; ++ ++ dma_unmap_single(&dev->dev, ring->buf[i].dma_addr, ++ ag->rx_buf_size, DMA_FROM_DEVICE); ++ ++ dev->stats.rx_packets++; ++ dev->stats.rx_bytes += pktlen; ++ ++ skb = build_skb(ring->buf[i].rx_buf, 0); ++ if (!skb) { ++ kfree(ring->buf[i].rx_buf); ++ goto next; ++ } ++ ++ skb_reserve(skb, offset); ++ skb_put(skb, pktlen); ++ ++ if (ag71xx_has_ar8216(ag)) ++ err = ag71xx_remove_ar8216_header(ag, skb, pktlen); ++ ++ if (err) { ++ dev->stats.rx_dropped++; ++ kfree_skb(skb); ++ } else { ++ skb->dev = dev; ++ skb->ip_summed = CHECKSUM_NONE; ++ skb->protocol = eth_type_trans(skb, dev); ++ netif_receive_skb(skb); ++ } ++ ++next: ++ ring->buf[i].rx_buf = NULL; ++ done++; ++ ++ ring->curr++; ++ } ++ ++ ag71xx_ring_rx_refill(ag); ++ ++ DBG("%s: rx finish, curr=%u, dirty=%u, done=%d\n", ++ dev->name, ring->curr, ring->dirty, done); ++ ++ return done; ++} ++ ++static int ag71xx_poll(struct napi_struct *napi, int limit) ++{ ++ struct ag71xx *ag = container_of(napi, struct ag71xx, napi); ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ struct net_device *dev = ag->dev; ++ struct ag71xx_ring *rx_ring; ++ unsigned long flags; ++ u32 status; ++ int tx_done; ++ int rx_done; ++ ++ pdata->ddr_flush(); ++ tx_done = ag71xx_tx_packets(ag); ++ ++ DBG("%s: processing RX ring\n", dev->name); ++ rx_done = ag71xx_rx_packets(ag, limit); ++ ++ ag71xx_debugfs_update_napi_stats(ag, rx_done, tx_done); ++ ++ rx_ring = &ag->rx_ring; ++ if (rx_ring->buf[rx_ring->dirty % rx_ring->size].rx_buf == NULL) ++ goto oom; ++ ++ status = ag71xx_rr(ag, AG71XX_REG_RX_STATUS); ++ if (unlikely(status & RX_STATUS_OF)) { ++ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_OF); ++ dev->stats.rx_fifo_errors++; ++ ++ /* restart RX */ ++ ag71xx_wr(ag, AG71XX_REG_RX_CTRL, RX_CTRL_RXE); ++ } ++ ++ if (rx_done < limit) { ++ if (status & RX_STATUS_PR) ++ goto more; ++ ++ status = ag71xx_rr(ag, AG71XX_REG_TX_STATUS); ++ if (status & TX_STATUS_PS) ++ goto more; ++ ++ DBG("%s: disable polling mode, rx=%d, tx=%d,limit=%d\n", ++ dev->name, rx_done, tx_done, limit); ++ ++ napi_complete(napi); ++ ++ /* enable interrupts */ ++ spin_lock_irqsave(&ag->lock, flags); ++ ag71xx_int_enable(ag, AG71XX_INT_POLL); ++ spin_unlock_irqrestore(&ag->lock, flags); ++ return rx_done; ++ } ++ ++more: ++ DBG("%s: stay in polling mode, rx=%d, tx=%d, limit=%d\n", ++ dev->name, rx_done, tx_done, limit); ++ return rx_done; ++ ++oom: ++ if (netif_msg_rx_err(ag)) ++ pr_info("%s: out of memory\n", dev->name); ++ ++ mod_timer(&ag->oom_timer, jiffies + AG71XX_OOM_REFILL); ++ napi_complete(napi); ++ return 0; ++} ++ ++static irqreturn_t ag71xx_interrupt(int irq, void *dev_id) ++{ ++ struct net_device *dev = dev_id; ++ struct ag71xx *ag = netdev_priv(dev); ++ u32 status; ++ ++ status = ag71xx_rr(ag, AG71XX_REG_INT_STATUS); ++ ag71xx_dump_intr(ag, "raw", status); ++ ++ if (unlikely(!status)) ++ return IRQ_NONE; ++ ++ if (unlikely(status & AG71XX_INT_ERR)) { ++ if (status & AG71XX_INT_TX_BE) { ++ ag71xx_wr(ag, AG71XX_REG_TX_STATUS, TX_STATUS_BE); ++ dev_err(&dev->dev, "TX BUS error\n"); ++ } ++ if (status & AG71XX_INT_RX_BE) { ++ ag71xx_wr(ag, AG71XX_REG_RX_STATUS, RX_STATUS_BE); ++ dev_err(&dev->dev, "RX BUS error\n"); ++ } ++ } ++ ++ if (likely(status & AG71XX_INT_POLL)) { ++ ag71xx_int_disable(ag, AG71XX_INT_POLL); ++ DBG("%s: enable polling mode\n", dev->name); ++ napi_schedule(&ag->napi); ++ } ++ ++ ag71xx_debugfs_update_int_stats(ag, status); ++ ++ return IRQ_HANDLED; ++} ++ ++#ifdef CONFIG_NET_POLL_CONTROLLER ++/* ++ * Polling 'interrupt' - used by things like netconsole to send skbs ++ * without having to re-enable interrupts. It's not called while ++ * the interrupt routine is executing. ++ */ ++static void ag71xx_netpoll(struct net_device *dev) ++{ ++ disable_irq(dev->irq); ++ ag71xx_interrupt(dev->irq, dev); ++ enable_irq(dev->irq); ++} ++#endif ++ ++static int ag71xx_change_mtu(struct net_device *dev, int new_mtu) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ unsigned int max_frame_len; ++ ++ max_frame_len = ag71xx_max_frame_len(new_mtu); ++ if (new_mtu < 68 || max_frame_len > ag->max_frame_len) ++ return -EINVAL; ++ ++ if (netif_running(dev)) ++ return -EBUSY; ++ ++ dev->mtu = new_mtu; ++ return 0; ++} ++ ++static const struct net_device_ops ag71xx_netdev_ops = { ++ .ndo_open = ag71xx_open, ++ .ndo_stop = ag71xx_stop, ++ .ndo_start_xmit = ag71xx_hard_start_xmit, ++ .ndo_do_ioctl = ag71xx_do_ioctl, ++ .ndo_tx_timeout = ag71xx_tx_timeout, ++ .ndo_change_mtu = ag71xx_change_mtu, ++ .ndo_set_mac_address = eth_mac_addr, ++ .ndo_validate_addr = eth_validate_addr, ++#ifdef CONFIG_NET_POLL_CONTROLLER ++ .ndo_poll_controller = ag71xx_netpoll, ++#endif ++}; ++ ++static const char *ag71xx_get_phy_if_mode_name(phy_interface_t mode) ++{ ++ switch (mode) { ++ case PHY_INTERFACE_MODE_MII: ++ return "MII"; ++ case PHY_INTERFACE_MODE_GMII: ++ return "GMII"; ++ case PHY_INTERFACE_MODE_RMII: ++ return "RMII"; ++ case PHY_INTERFACE_MODE_RGMII: ++ return "RGMII"; ++ case PHY_INTERFACE_MODE_SGMII: ++ return "SGMII"; ++ default: ++ break; ++ } ++ ++ return "unknown"; ++} ++ ++ ++static int ag71xx_probe(struct platform_device *pdev) ++{ ++ struct net_device *dev; ++ struct resource *res; ++ struct ag71xx *ag; ++ struct ag71xx_platform_data *pdata; ++ int err; ++ ++ pdata = pdev->dev.platform_data; ++ if (!pdata) { ++ dev_err(&pdev->dev, "no platform data specified\n"); ++ err = -ENXIO; ++ goto err_out; ++ } ++ ++ if (pdata->mii_bus_dev == NULL && pdata->phy_mask) { ++ dev_err(&pdev->dev, "no MII bus device specified\n"); ++ err = -EINVAL; ++ goto err_out; ++ } ++ ++ dev = alloc_etherdev(sizeof(*ag)); ++ if (!dev) { ++ dev_err(&pdev->dev, "alloc_etherdev failed\n"); ++ err = -ENOMEM; ++ goto err_out; ++ } ++ ++ if (!pdata->max_frame_len || !pdata->desc_pktlen_mask) ++ return -EINVAL; ++ ++ SET_NETDEV_DEV(dev, &pdev->dev); ++ ++ ag = netdev_priv(dev); ++ ag->pdev = pdev; ++ ag->dev = dev; ++ ag->msg_enable = netif_msg_init(ag71xx_msg_level, ++ AG71XX_DEFAULT_MSG_ENABLE); ++ spin_lock_init(&ag->lock); ++ ++ res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mac_base"); ++ if (!res) { ++ dev_err(&pdev->dev, "no mac_base resource found\n"); ++ err = -ENXIO; ++ goto err_out; ++ } ++ ++ ag->mac_base = ioremap_nocache(res->start, res->end - res->start + 1); ++ if (!ag->mac_base) { ++ dev_err(&pdev->dev, "unable to ioremap mac_base\n"); ++ err = -ENOMEM; ++ goto err_free_dev; ++ } ++ ++ dev->irq = platform_get_irq(pdev, 0); ++ err = request_irq(dev->irq, ag71xx_interrupt, ++ IRQF_DISABLED, ++ dev->name, dev); ++ if (err) { ++ dev_err(&pdev->dev, "unable to request IRQ %d\n", dev->irq); ++ goto err_unmap_base; ++ } ++ ++ dev->base_addr = (unsigned long)ag->mac_base; ++ dev->netdev_ops = &ag71xx_netdev_ops; ++ dev->ethtool_ops = &ag71xx_ethtool_ops; ++ ++ INIT_WORK(&ag->restart_work, ag71xx_restart_work_func); ++ ++ init_timer(&ag->oom_timer); ++ ag->oom_timer.data = (unsigned long) dev; ++ ag->oom_timer.function = ag71xx_oom_timer_handler; ++ ++ ag->tx_ring.size = AG71XX_TX_RING_SIZE_DEFAULT; ++ ag->rx_ring.size = AG71XX_RX_RING_SIZE_DEFAULT; ++ ++ ag->max_frame_len = pdata->max_frame_len; ++ ag->desc_pktlen_mask = pdata->desc_pktlen_mask; ++ ++ ag->stop_desc = dma_alloc_coherent(NULL, ++ sizeof(struct ag71xx_desc), &ag->stop_desc_dma, GFP_KERNEL); ++ ++ if (!ag->stop_desc) ++ goto err_free_irq; ++ ++ ag->stop_desc->data = 0; ++ ag->stop_desc->ctrl = 0; ++ ag->stop_desc->next = (u32) ag->stop_desc_dma; ++ ++ memcpy(dev->dev_addr, pdata->mac_addr, ETH_ALEN); ++ ++ netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT); ++ ++ ag71xx_dump_regs(ag); ++ ++ ag71xx_hw_init(ag); ++ ++ ag71xx_dump_regs(ag); ++ ++ err = ag71xx_phy_connect(ag); ++ if (err) ++ goto err_free_desc; ++ ++ err = ag71xx_debugfs_init(ag); ++ if (err) ++ goto err_phy_disconnect; ++ ++ platform_set_drvdata(pdev, dev); ++ ++ err = register_netdev(dev); ++ if (err) { ++ dev_err(&pdev->dev, "unable to register net device\n"); ++ goto err_debugfs_exit; ++ } ++ ++ pr_info("%s: Atheros AG71xx at 0x%08lx, irq %d, mode:%s\n", ++ dev->name, dev->base_addr, dev->irq, ++ ag71xx_get_phy_if_mode_name(pdata->phy_if_mode)); ++ ++ return 0; ++ ++err_debugfs_exit: ++ ag71xx_debugfs_exit(ag); ++err_phy_disconnect: ++ ag71xx_phy_disconnect(ag); ++err_free_desc: ++ dma_free_coherent(NULL, sizeof(struct ag71xx_desc), ag->stop_desc, ++ ag->stop_desc_dma); ++err_free_irq: ++ free_irq(dev->irq, dev); ++err_unmap_base: ++ iounmap(ag->mac_base); ++err_free_dev: ++ kfree(dev); ++err_out: ++ platform_set_drvdata(pdev, NULL); ++ return err; ++} ++ ++static int ag71xx_remove(struct platform_device *pdev) ++{ ++ struct net_device *dev = platform_get_drvdata(pdev); ++ ++ if (dev) { ++ struct ag71xx *ag = netdev_priv(dev); ++ ++ ag71xx_debugfs_exit(ag); ++ ag71xx_phy_disconnect(ag); ++ unregister_netdev(dev); ++ free_irq(dev->irq, dev); ++ iounmap(ag->mac_base); ++ kfree(dev); ++ platform_set_drvdata(pdev, NULL); ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver ag71xx_driver = { ++ .probe = ag71xx_probe, ++ .remove = ag71xx_remove, ++ .driver = { ++ .name = AG71XX_DRV_NAME, ++ } ++}; ++ ++static int __init ag71xx_module_init(void) ++{ ++ int ret; ++ ++ ret = ag71xx_debugfs_root_init(); ++ if (ret) ++ goto err_out; ++ ++ ret = ag71xx_mdio_driver_init(); ++ if (ret) ++ goto err_debugfs_exit; ++ ++ ret = platform_driver_register(&ag71xx_driver); ++ if (ret) ++ goto err_mdio_exit; ++ ++ return 0; ++ ++err_mdio_exit: ++ ag71xx_mdio_driver_exit(); ++err_debugfs_exit: ++ ag71xx_debugfs_root_exit(); ++err_out: ++ return ret; ++} ++ ++static void __exit ag71xx_module_exit(void) ++{ ++ platform_driver_unregister(&ag71xx_driver); ++ ag71xx_mdio_driver_exit(); ++ ag71xx_debugfs_root_exit(); ++} ++ ++module_init(ag71xx_module_init); ++module_exit(ag71xx_module_exit); ++ ++MODULE_VERSION(AG71XX_DRV_VERSION); ++MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); ++MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org>"); ++MODULE_LICENSE("GPL v2"); ++MODULE_ALIAS("platform:" AG71XX_DRV_NAME); +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c +new file mode 100644 +index 0000000..71ae825 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_mdio.c +@@ -0,0 +1,318 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#include "ag71xx.h" ++ ++#define AG71XX_MDIO_RETRY 1000 ++#define AG71XX_MDIO_DELAY 5 ++ ++static inline void ag71xx_mdio_wr(struct ag71xx_mdio *am, unsigned reg, ++ u32 value) ++{ ++ void __iomem *r; ++ ++ r = am->mdio_base + reg; ++ __raw_writel(value, r); ++ ++ /* flush write */ ++ (void) __raw_readl(r); ++} ++ ++static inline u32 ag71xx_mdio_rr(struct ag71xx_mdio *am, unsigned reg) ++{ ++ return __raw_readl(am->mdio_base + reg); ++} ++ ++static void ag71xx_mdio_dump_regs(struct ag71xx_mdio *am) ++{ ++ DBG("%s: mii_cfg=%08x, mii_cmd=%08x, mii_addr=%08x\n", ++ am->mii_bus->name, ++ ag71xx_mdio_rr(am, AG71XX_REG_MII_CFG), ++ ag71xx_mdio_rr(am, AG71XX_REG_MII_CMD), ++ ag71xx_mdio_rr(am, AG71XX_REG_MII_ADDR)); ++ DBG("%s: mii_ctrl=%08x, mii_status=%08x, mii_ind=%08x\n", ++ am->mii_bus->name, ++ ag71xx_mdio_rr(am, AG71XX_REG_MII_CTRL), ++ ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS), ++ ag71xx_mdio_rr(am, AG71XX_REG_MII_IND)); ++} ++ ++static int ag71xx_mdio_wait_busy(struct ag71xx_mdio *am) ++{ ++ int i; ++ ++ for (i = 0; i < AG71XX_MDIO_RETRY; i++) { ++ u32 busy; ++ ++ udelay(AG71XX_MDIO_DELAY); ++ ++ busy = ag71xx_mdio_rr(am, AG71XX_REG_MII_IND); ++ if (!busy) ++ return 0; ++ ++ udelay(AG71XX_MDIO_DELAY); ++ } ++ ++ pr_err("%s: MDIO operation timed out\n", am->mii_bus->name); ++ ++ return -ETIMEDOUT; ++} ++ ++int ag71xx_mdio_mii_read(struct ag71xx_mdio *am, int addr, int reg) ++{ ++ int err; ++ int ret; ++ ++ err = ag71xx_mdio_wait_busy(am); ++ if (err) ++ return 0xffff; ++ ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE); ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR, ++ ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff)); ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_READ); ++ ++ err = ag71xx_mdio_wait_busy(am); ++ if (err) ++ return 0xffff; ++ ++ ret = ag71xx_mdio_rr(am, AG71XX_REG_MII_STATUS) & 0xffff; ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_CMD, MII_CMD_WRITE); ++ ++ DBG("mii_read: addr=%04x, reg=%04x, value=%04x\n", addr, reg, ret); ++ ++ return ret; ++} ++ ++void ag71xx_mdio_mii_write(struct ag71xx_mdio *am, int addr, int reg, u16 val) ++{ ++ DBG("mii_write: addr=%04x, reg=%04x, value=%04x\n", addr, reg, val); ++ ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_ADDR, ++ ((addr & 0xff) << MII_ADDR_SHIFT) | (reg & 0xff)); ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_CTRL, val); ++ ++ ag71xx_mdio_wait_busy(am); ++} ++ ++static const u32 ar71xx_mdio_div_table[] = { ++ 4, 4, 6, 8, 10, 14, 20, 28, ++}; ++ ++static const u32 ar7240_mdio_div_table[] = { ++ 2, 2, 4, 6, 8, 12, 18, 26, 32, 40, 48, 56, 62, 70, 78, 96, ++}; ++ ++static const u32 ar933x_mdio_div_table[] = { ++ 4, 4, 6, 8, 10, 14, 20, 28, 34, 42, 50, 58, 66, 74, 82, 98, ++}; ++ ++static int ag71xx_mdio_get_divider(struct ag71xx_mdio *am, u32 *div) ++{ ++ unsigned long ref_clock, mdio_clock; ++ const u32 *table; ++ int ndivs; ++ int i; ++ ++ ref_clock = am->pdata->ref_clock; ++ mdio_clock = am->pdata->mdio_clock; ++ ++ if (!ref_clock || !mdio_clock) ++ return -EINVAL; ++ ++ if (am->pdata->is_ar9330 || am->pdata->is_ar934x) { ++ table = ar933x_mdio_div_table; ++ ndivs = ARRAY_SIZE(ar933x_mdio_div_table); ++ } else if (am->pdata->is_ar7240) { ++ table = ar7240_mdio_div_table; ++ ndivs = ARRAY_SIZE(ar7240_mdio_div_table); ++ } else { ++ table = ar71xx_mdio_div_table; ++ ndivs = ARRAY_SIZE(ar71xx_mdio_div_table); ++ } ++ ++ for (i = 0; i < ndivs; i++) { ++ unsigned long t; ++ ++ t = ref_clock / table[i]; ++ if (t <= mdio_clock) { ++ *div = i; ++ return 0; ++ } ++ } ++ ++ dev_err(&am->mii_bus->dev, "no divider found for %lu/%lu\n", ++ ref_clock, mdio_clock); ++ return -ENOENT; ++} ++ ++static int ag71xx_mdio_reset(struct mii_bus *bus) ++{ ++ struct ag71xx_mdio *am = bus->priv; ++ u32 t; ++ int err; ++ ++ err = ag71xx_mdio_get_divider(am, &t); ++ if (err) { ++ /* fallback */ ++ if (am->pdata->is_ar7240) ++ t = MII_CFG_CLK_DIV_6; ++ else if (am->pdata->builtin_switch && !am->pdata->is_ar934x) ++ t = MII_CFG_CLK_DIV_10; ++ else if (!am->pdata->builtin_switch && am->pdata->is_ar934x) ++ t = MII_CFG_CLK_DIV_58; ++ else ++ t = MII_CFG_CLK_DIV_28; ++ } ++ ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, t | MII_CFG_RESET); ++ udelay(100); ++ ++ ag71xx_mdio_wr(am, AG71XX_REG_MII_CFG, t); ++ udelay(100); ++ ++ if (am->pdata->reset) ++ am->pdata->reset(bus); ++ ++ return 0; ++} ++ ++static int ag71xx_mdio_read(struct mii_bus *bus, int addr, int reg) ++{ ++ struct ag71xx_mdio *am = bus->priv; ++ ++ if (am->pdata->builtin_switch) ++ return ar7240sw_phy_read(bus, addr, reg); ++ else ++ return ag71xx_mdio_mii_read(am, addr, reg); ++} ++ ++static int ag71xx_mdio_write(struct mii_bus *bus, int addr, int reg, u16 val) ++{ ++ struct ag71xx_mdio *am = bus->priv; ++ ++ if (am->pdata->builtin_switch) ++ ar7240sw_phy_write(bus, addr, reg, val); ++ else ++ ag71xx_mdio_mii_write(am, addr, reg, val); ++ return 0; ++} ++ ++static int ag71xx_mdio_probe(struct platform_device *pdev) ++{ ++ struct ag71xx_mdio_platform_data *pdata; ++ struct ag71xx_mdio *am; ++ struct resource *res; ++ int i; ++ int err; ++ ++ pdata = pdev->dev.platform_data; ++ if (!pdata) { ++ dev_err(&pdev->dev, "no platform data specified\n"); ++ return -EINVAL; ++ } ++ ++ am = kzalloc(sizeof(*am), GFP_KERNEL); ++ if (!am) { ++ err = -ENOMEM; ++ goto err_out; ++ } ++ ++ am->pdata = pdata; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ if (!res) { ++ dev_err(&pdev->dev, "no iomem resource found\n"); ++ err = -ENXIO; ++ goto err_out; ++ } ++ ++ am->mdio_base = ioremap_nocache(res->start, res->end - res->start + 1); ++ if (!am->mdio_base) { ++ dev_err(&pdev->dev, "unable to ioremap registers\n"); ++ err = -ENOMEM; ++ goto err_free_mdio; ++ } ++ ++ am->mii_bus = mdiobus_alloc(); ++ if (am->mii_bus == NULL) { ++ err = -ENOMEM; ++ goto err_iounmap; ++ } ++ ++ am->mii_bus->name = "ag71xx_mdio"; ++ am->mii_bus->read = ag71xx_mdio_read; ++ am->mii_bus->write = ag71xx_mdio_write; ++ am->mii_bus->reset = ag71xx_mdio_reset; ++ am->mii_bus->irq = am->mii_irq; ++ am->mii_bus->priv = am; ++ am->mii_bus->parent = &pdev->dev; ++ snprintf(am->mii_bus->id, MII_BUS_ID_SIZE, "%s", dev_name(&pdev->dev)); ++ am->mii_bus->phy_mask = pdata->phy_mask; ++ ++ for (i = 0; i < PHY_MAX_ADDR; i++) ++ am->mii_irq[i] = PHY_POLL; ++ ++ ag71xx_mdio_wr(am, AG71XX_REG_MAC_CFG1, 0); ++ ++ err = mdiobus_register(am->mii_bus); ++ if (err) ++ goto err_free_bus; ++ ++ ag71xx_mdio_dump_regs(am); ++ ++ platform_set_drvdata(pdev, am); ++ return 0; ++ ++err_free_bus: ++ mdiobus_free(am->mii_bus); ++err_iounmap: ++ iounmap(am->mdio_base); ++err_free_mdio: ++ kfree(am); ++err_out: ++ return err; ++} ++ ++static int ag71xx_mdio_remove(struct platform_device *pdev) ++{ ++ struct ag71xx_mdio *am = platform_get_drvdata(pdev); ++ ++ if (am) { ++ mdiobus_unregister(am->mii_bus); ++ mdiobus_free(am->mii_bus); ++ iounmap(am->mdio_base); ++ kfree(am); ++ platform_set_drvdata(pdev, NULL); ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver ag71xx_mdio_driver = { ++ .probe = ag71xx_mdio_probe, ++ .remove = ag71xx_mdio_remove, ++ .driver = { ++ .name = "ag71xx-mdio", ++ } ++}; ++ ++int __init ag71xx_mdio_driver_init(void) ++{ ++ return platform_driver_register(&ag71xx_mdio_driver); ++} ++ ++void ag71xx_mdio_driver_exit(void) ++{ ++ platform_driver_unregister(&ag71xx_mdio_driver); ++} +diff --git a/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c b/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c +new file mode 100644 +index 0000000..9de77e9 +--- /dev/null ++++ b/drivers/net/ethernet/atheros/ag71xx/ag71xx_phy.c +@@ -0,0 +1,235 @@ ++/* ++ * Atheros AR71xx built-in ethernet mac driver ++ * ++ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> ++ * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> ++ * ++ * Based on Atheros' AG7100 driver ++ * ++ * 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. ++ */ ++ ++#include "ag71xx.h" ++ ++static void ag71xx_phy_link_adjust(struct net_device *dev) ++{ ++ struct ag71xx *ag = netdev_priv(dev); ++ struct phy_device *phydev = ag->phy_dev; ++ unsigned long flags; ++ int status_change = 0; ++ ++ spin_lock_irqsave(&ag->lock, flags); ++ ++ if (phydev->link) { ++ if (ag->duplex != phydev->duplex ++ || ag->speed != phydev->speed) { ++ status_change = 1; ++ } ++ } ++ ++ if (phydev->link != ag->link) ++ status_change = 1; ++ ++ ag->link = phydev->link; ++ ag->duplex = phydev->duplex; ++ ag->speed = phydev->speed; ++ ++ if (status_change) ++ ag71xx_link_adjust(ag); ++ ++ spin_unlock_irqrestore(&ag->lock, flags); ++} ++ ++void ag71xx_phy_start(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ ++ if (ag->phy_dev) { ++ phy_start(ag->phy_dev); ++ } else if (pdata->mii_bus_dev && pdata->switch_data) { ++ ag71xx_ar7240_start(ag); ++ } else { ++ ag->link = 1; ++ ag71xx_link_adjust(ag); ++ } ++} ++ ++void ag71xx_phy_stop(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ unsigned long flags; ++ ++ if (ag->phy_dev) ++ phy_stop(ag->phy_dev); ++ else if (pdata->mii_bus_dev && pdata->switch_data) ++ ag71xx_ar7240_stop(ag); ++ ++ spin_lock_irqsave(&ag->lock, flags); ++ if (ag->link) { ++ ag->link = 0; ++ ag71xx_link_adjust(ag); ++ } ++ spin_unlock_irqrestore(&ag->lock, flags); ++} ++ ++static int ag71xx_phy_connect_fixed(struct ag71xx *ag) ++{ ++ struct device *dev = &ag->pdev->dev; ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ int ret = 0; ++ ++ /* use fixed settings */ ++ switch (pdata->speed) { ++ case SPEED_10: ++ case SPEED_100: ++ case SPEED_1000: ++ break; ++ default: ++ dev_err(dev, "invalid speed specified\n"); ++ ret = -EINVAL; ++ break; ++ } ++ ++ dev_dbg(dev, "using fixed link parameters\n"); ++ ++ ag->duplex = pdata->duplex; ++ ag->speed = pdata->speed; ++ ++ return ret; ++} ++ ++static int ag71xx_phy_connect_multi(struct ag71xx *ag) ++{ ++ struct device *dev = &ag->pdev->dev; ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ struct phy_device *phydev = NULL; ++ int phy_addr; ++ int ret = 0; ++ ++ for (phy_addr = 0; phy_addr < PHY_MAX_ADDR; phy_addr++) { ++ if (!(pdata->phy_mask & (1 << phy_addr))) ++ continue; ++ ++ if (ag->mii_bus->phy_map[phy_addr] == NULL) ++ continue; ++ ++ DBG("%s: PHY found at %s, uid=%08x\n", ++ dev_name(dev), ++ dev_name(&ag->mii_bus->phy_map[phy_addr]->dev), ++ ag->mii_bus->phy_map[phy_addr]->phy_id); ++ ++ if (phydev == NULL) ++ phydev = ag->mii_bus->phy_map[phy_addr]; ++ } ++ ++ if (!phydev) { ++ dev_err(dev, "no PHY found with phy_mask=%08x\n", ++ pdata->phy_mask); ++ return -ENODEV; ++ } ++ ++ ag->phy_dev = phy_connect(ag->dev, dev_name(&phydev->dev), ++ &ag71xx_phy_link_adjust, ++ pdata->phy_if_mode); ++ ++ if (IS_ERR(ag->phy_dev)) { ++ dev_err(dev, "could not connect to PHY at %s\n", ++ dev_name(&phydev->dev)); ++ return PTR_ERR(ag->phy_dev); ++ } ++ ++ /* mask with MAC supported features */ ++ if (pdata->has_gbit) ++ phydev->supported &= PHY_GBIT_FEATURES; ++ else ++ phydev->supported &= PHY_BASIC_FEATURES; ++ ++ phydev->advertising = phydev->supported; ++ ++ dev_info(dev, "connected to PHY at %s [uid=%08x, driver=%s]\n", ++ dev_name(&phydev->dev), phydev->phy_id, phydev->drv->name); ++ ++ ag->link = 0; ++ ag->speed = 0; ++ ag->duplex = -1; ++ ++ return ret; ++} ++ ++static int dev_is_class(struct device *dev, void *class) ++{ ++ if (dev->class != NULL && !strcmp(dev->class->name, class)) ++ return 1; ++ ++ return 0; ++} ++ ++static struct device *dev_find_class(struct device *parent, char *class) ++{ ++ if (dev_is_class(parent, class)) { ++ get_device(parent); ++ return parent; ++ } ++ ++ return device_find_child(parent, class, dev_is_class); ++} ++ ++static struct mii_bus *dev_to_mii_bus(struct device *dev) ++{ ++ struct device *d; ++ ++ d = dev_find_class(dev, "mdio_bus"); ++ if (d != NULL) { ++ struct mii_bus *bus; ++ ++ bus = to_mii_bus(d); ++ put_device(d); ++ ++ return bus; ++ } ++ ++ return NULL; ++} ++ ++int ag71xx_phy_connect(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ ++ if (pdata->mii_bus_dev == NULL || ++ pdata->mii_bus_dev->bus == NULL ) ++ return ag71xx_phy_connect_fixed(ag); ++ ++ ag->mii_bus = dev_to_mii_bus(pdata->mii_bus_dev); ++ if (ag->mii_bus == NULL) { ++ dev_err(&ag->pdev->dev, "unable to find MII bus on device '%s'\n", ++ dev_name(pdata->mii_bus_dev)); ++ return -ENODEV; ++ } ++ ++ /* Reset the mdio bus explicitly */ ++ if (ag->mii_bus->reset) { ++ mutex_lock(&ag->mii_bus->mdio_lock); ++ ag->mii_bus->reset(ag->mii_bus); ++ mutex_unlock(&ag->mii_bus->mdio_lock); ++ } ++ ++ if (pdata->switch_data) ++ return ag71xx_ar7240_init(ag); ++ ++ if (pdata->phy_mask) ++ return ag71xx_phy_connect_multi(ag); ++ ++ return ag71xx_phy_connect_fixed(ag); ++} ++ ++void ag71xx_phy_disconnect(struct ag71xx *ag) ++{ ++ struct ag71xx_platform_data *pdata = ag71xx_get_pdata(ag); ++ ++ if (pdata->switch_data) ++ ag71xx_ar7240_cleanup(ag); ++ else if (ag->phy_dev) ++ phy_disconnect(ag->phy_dev); ++} +-- +1.8.5.3 + |