diff options
Diffstat (limited to 'package/uboot-ar71xx/files/drivers/net/ag71xx.h')
| -rw-r--r-- | package/uboot-ar71xx/files/drivers/net/ag71xx.h | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/package/uboot-ar71xx/files/drivers/net/ag71xx.h b/package/uboot-ar71xx/files/drivers/net/ag71xx.h new file mode 100644 index 0000000..edce429 --- /dev/null +++ b/package/uboot-ar71xx/files/drivers/net/ag71xx.h @@ -0,0 +1,374 @@ +/* + * 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/types.h> +#include <linux/bitops.h> + +#include <asm/ar71xx.h> + +// controller has 2 ports +#define MAX_AG71XX_DEVS 2 + +#define ETH_FCS_LEN 4 + +#define SPEED_10 10 +#define SPEED_100 100 +#define SPEED_1000 1000 + + +#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_FIFO_LEN 2048 +#define AG71XX_TX_MTU_LEN 1536 +#define AG71XX_RX_PKT_RESERVE 64 +#define AG71XX_RX_PKT_SIZE \ + (AG71XX_RX_PKT_RESERVE + ETH_HLEN + ETH_FRAME_LEN + ETH_FCS_LEN) + +#ifndef CONFIG_SYS_RX_ETH_BUFFER +#define AG71XX_TX_RING_SIZE 4 +#define AG71XX_RX_RING_SIZE 4 +#else +#define AG71XX_TX_RING_SIZE CONFIG_SYS_RX_ETH_BUFFER +#define AG71XX_RX_RING_SIZE CONFIG_SYS_RX_ETH_BUFFER +#endif + +#define AG71XX_TX_THRES_STOP (AG71XX_TX_RING_SIZE - 4) +#define AG71XX_TX_THRES_WAKEUP \ + (AG71XX_TX_RING_SIZE - (AG71XX_TX_RING_SIZE / 4)) + + + + +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 { + struct sk_buff *skb; + struct ag71xx_desc *desc; + dma_addr_t dma_addr; + u32 pad; +}; + +struct ag71xx_ring { + struct ag71xx_buf *buf; + u8 *descs_cpu; + u8 *descs_dma; + unsigned int desc_size; + unsigned int curr; + unsigned int size; +}; + +struct ag71xx { + uint32_t mac_base; + uint32_t mii_ctrl; + + struct eth_device *dev; + + struct ag71xx_ring rx_ring; + struct ag71xx_ring tx_ring; + + char *phyname; + u16 phyid; + u16 phyfixed; + uint32_t link; + uint32_t speed; + int32_t duplex; + uint32_t macNum; + uint32_t mii_if; +}; + +void ag71xx_link_adjust(struct ag71xx *ag); + +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 int ag71xx_desc_empty(struct ag71xx_desc *desc) +{ + return ((desc->ctrl & DESC_EMPTY) != 0); +} + +static inline int ag71xx_desc_pktlen(struct ag71xx_desc *desc) +{ + return (desc->ctrl & DESC_PKTLEN_M); +} + +/* 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 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_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 */ + +#define MII_CTRL_IF_MASK 3 +#define MII_CTRL_SPEED_SHIFT 4 +#define MII_CTRL_SPEED_MASK 3 +#define MII_CTRL_SPEED_10 0 +#define MII_CTRL_SPEED_100 1 +#define MII_CTRL_SPEED_1000 2 + +static inline void ag71xx_wr(struct ag71xx *ag, unsigned reg, u32 value) +{ + __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) +{ + return __raw_readl(ag->mac_base + reg); +} + +static inline void ag71xx_sb(struct ag71xx *ag, unsigned reg, u32 mask) +{ + uint32_t r; + + 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) +{ + uint32_t r; + + 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); +} + +static inline void ag71xx_mii_ctrl_wr(struct ag71xx *ag, u32 value) +{ + __raw_writel(value, ag->mii_ctrl); + + /* flush write */ + __raw_readl(ag->mii_ctrl); +} + +static inline u32 ag71xx_mii_ctrl_rr(struct ag71xx *ag) +{ + return __raw_readl(ag->mii_ctrl); +} + +static void inline ag71xx_mii_ctrl_set_if(struct ag71xx *ag, + unsigned int mii_if) +{ + u32 t; + + t = ag71xx_mii_ctrl_rr(ag); + t &= ~(MII_CTRL_IF_MASK); + t |= (mii_if & MII_CTRL_IF_MASK); + ag71xx_mii_ctrl_wr(ag, t); +} + +static void inline ag71xx_mii_ctrl_set_speed(struct ag71xx *ag, + unsigned int speed) +{ + u32 t; + + t = ag71xx_mii_ctrl_rr(ag); + t &= ~(MII_CTRL_SPEED_MASK << MII_CTRL_SPEED_SHIFT); + t |= (speed & MII_CTRL_SPEED_MASK) << MII_CTRL_SPEED_SHIFT; + ag71xx_mii_ctrl_wr(ag, t); +} + +#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 + +#endif /* _AG71XX_H */ |