| /* |
| * Atmel MACB Ethernet Controller driver |
| * |
| * Copyright (C) 2004-2006 Atmel Corporation |
| * |
| * 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 _MACB_H |
| #define _MACB_H |
| |
| /* MACB register offsets */ |
| #define MACB_NCR 0x0000 |
| #define MACB_NCFGR 0x0004 |
| #define MACB_NSR 0x0008 |
| #define MACB_TSR 0x0014 |
| #define MACB_RBQP 0x0018 |
| #define MACB_TBQP 0x001c |
| #define MACB_RSR 0x0020 |
| #define MACB_ISR 0x0024 |
| #define MACB_IER 0x0028 |
| #define MACB_IDR 0x002c |
| #define MACB_IMR 0x0030 |
| #define MACB_MAN 0x0034 |
| #define MACB_PTR 0x0038 |
| #define MACB_PFR 0x003c |
| #define MACB_FTO 0x0040 |
| #define MACB_SCF 0x0044 |
| #define MACB_MCF 0x0048 |
| #define MACB_FRO 0x004c |
| #define MACB_FCSE 0x0050 |
| #define MACB_ALE 0x0054 |
| #define MACB_DTF 0x0058 |
| #define MACB_LCOL 0x005c |
| #define MACB_EXCOL 0x0060 |
| #define MACB_TUND 0x0064 |
| #define MACB_CSE 0x0068 |
| #define MACB_RRE 0x006c |
| #define MACB_ROVR 0x0070 |
| #define MACB_RSE 0x0074 |
| #define MACB_ELE 0x0078 |
| #define MACB_RJA 0x007c |
| #define MACB_USF 0x0080 |
| #define MACB_STE 0x0084 |
| #define MACB_RLE 0x0088 |
| #define MACB_TPF 0x008c |
| #define MACB_HRB 0x0090 |
| #define MACB_HRT 0x0094 |
| #define MACB_SA1B 0x0098 |
| #define MACB_SA1T 0x009c |
| #define MACB_SA2B 0x00a0 |
| #define MACB_SA2T 0x00a4 |
| #define MACB_SA3B 0x00a8 |
| #define MACB_SA3T 0x00ac |
| #define MACB_SA4B 0x00b0 |
| #define MACB_SA4T 0x00b4 |
| #define MACB_TID 0x00b8 |
| #define MACB_TPQ 0x00bc |
| #define MACB_USRIO 0x00c0 |
| #define MACB_WOL 0x00c4 |
| #define MACB_MID 0x00fc |
| |
| /* GEM register offsets. */ |
| #define GEM_NCFGR 0x0004 |
| #define GEM_USRIO 0x000c |
| #define GEM_DMACFG 0x0010 |
| #define GEM_HRB 0x0080 |
| #define GEM_HRT 0x0084 |
| #define GEM_SA1B 0x0088 |
| #define GEM_SA1T 0x008C |
| #define GEM_OTX 0x0100 |
| #define GEM_DCFG1 0x0280 |
| #define GEM_DCFG2 0x0284 |
| #define GEM_DCFG3 0x0288 |
| #define GEM_DCFG4 0x028c |
| #define GEM_DCFG5 0x0290 |
| #define GEM_DCFG6 0x0294 |
| #define GEM_DCFG7 0x0298 |
| |
| /* Bitfields in NCR */ |
| #define MACB_LB_OFFSET 0 |
| #define MACB_LB_SIZE 1 |
| #define MACB_LLB_OFFSET 1 |
| #define MACB_LLB_SIZE 1 |
| #define MACB_RE_OFFSET 2 |
| #define MACB_RE_SIZE 1 |
| #define MACB_TE_OFFSET 3 |
| #define MACB_TE_SIZE 1 |
| #define MACB_MPE_OFFSET 4 |
| #define MACB_MPE_SIZE 1 |
| #define MACB_CLRSTAT_OFFSET 5 |
| #define MACB_CLRSTAT_SIZE 1 |
| #define MACB_INCSTAT_OFFSET 6 |
| #define MACB_INCSTAT_SIZE 1 |
| #define MACB_WESTAT_OFFSET 7 |
| #define MACB_WESTAT_SIZE 1 |
| #define MACB_BP_OFFSET 8 |
| #define MACB_BP_SIZE 1 |
| #define MACB_TSTART_OFFSET 9 |
| #define MACB_TSTART_SIZE 1 |
| #define MACB_THALT_OFFSET 10 |
| #define MACB_THALT_SIZE 1 |
| #define MACB_NCR_TPF_OFFSET 11 |
| #define MACB_NCR_TPF_SIZE 1 |
| #define MACB_TZQ_OFFSET 12 |
| #define MACB_TZQ_SIZE 1 |
| |
| /* Bitfields in NCFGR */ |
| #define MACB_SPD_OFFSET 0 |
| #define MACB_SPD_SIZE 1 |
| #define MACB_FD_OFFSET 1 |
| #define MACB_FD_SIZE 1 |
| #define MACB_BIT_RATE_OFFSET 2 |
| #define MACB_BIT_RATE_SIZE 1 |
| #define MACB_JFRAME_OFFSET 3 |
| #define MACB_JFRAME_SIZE 1 |
| #define MACB_CAF_OFFSET 4 |
| #define MACB_CAF_SIZE 1 |
| #define MACB_NBC_OFFSET 5 |
| #define MACB_NBC_SIZE 1 |
| #define MACB_NCFGR_MTI_OFFSET 6 |
| #define MACB_NCFGR_MTI_SIZE 1 |
| #define MACB_UNI_OFFSET 7 |
| #define MACB_UNI_SIZE 1 |
| #define MACB_BIG_OFFSET 8 |
| #define MACB_BIG_SIZE 1 |
| #define MACB_EAE_OFFSET 9 |
| #define MACB_EAE_SIZE 1 |
| #define MACB_CLK_OFFSET 10 |
| #define MACB_CLK_SIZE 2 |
| #define MACB_RTY_OFFSET 12 |
| #define MACB_RTY_SIZE 1 |
| #define MACB_PAE_OFFSET 13 |
| #define MACB_PAE_SIZE 1 |
| #define MACB_RBOF_OFFSET 14 |
| #define MACB_RBOF_SIZE 2 |
| #define MACB_RLCE_OFFSET 16 |
| #define MACB_RLCE_SIZE 1 |
| #define MACB_DRFCS_OFFSET 17 |
| #define MACB_DRFCS_SIZE 1 |
| #define MACB_EFRHD_OFFSET 18 |
| #define MACB_EFRHD_SIZE 1 |
| #define MACB_IRXFCS_OFFSET 19 |
| #define MACB_IRXFCS_SIZE 1 |
| |
| /* GEM specific NCFGR bitfields. */ |
| #define GEM_CLK_OFFSET 18 |
| #define GEM_CLK_SIZE 3 |
| #define GEM_DBW_OFFSET 21 |
| #define GEM_DBW_SIZE 2 |
| |
| /* Constants for data bus width. */ |
| #define GEM_DBW32 0 |
| #define GEM_DBW64 1 |
| #define GEM_DBW128 2 |
| |
| /* Bitfields in DMACFG. */ |
| #define GEM_RXBS_OFFSET 16 |
| #define GEM_RXBS_SIZE 8 |
| |
| /* Bitfields in NSR */ |
| #define MACB_NSR_LINK_OFFSET 0 |
| #define MACB_NSR_LINK_SIZE 1 |
| #define MACB_MDIO_OFFSET 1 |
| #define MACB_MDIO_SIZE 1 |
| #define MACB_IDLE_OFFSET 2 |
| #define MACB_IDLE_SIZE 1 |
| |
| /* Bitfields in TSR */ |
| #define MACB_UBR_OFFSET 0 |
| #define MACB_UBR_SIZE 1 |
| #define MACB_COL_OFFSET 1 |
| #define MACB_COL_SIZE 1 |
| #define MACB_TSR_RLE_OFFSET 2 |
| #define MACB_TSR_RLE_SIZE 1 |
| #define MACB_TGO_OFFSET 3 |
| #define MACB_TGO_SIZE 1 |
| #define MACB_BEX_OFFSET 4 |
| #define MACB_BEX_SIZE 1 |
| #define MACB_COMP_OFFSET 5 |
| #define MACB_COMP_SIZE 1 |
| #define MACB_UND_OFFSET 6 |
| #define MACB_UND_SIZE 1 |
| |
| /* Bitfields in RSR */ |
| #define MACB_BNA_OFFSET 0 |
| #define MACB_BNA_SIZE 1 |
| #define MACB_REC_OFFSET 1 |
| #define MACB_REC_SIZE 1 |
| #define MACB_OVR_OFFSET 2 |
| #define MACB_OVR_SIZE 1 |
| |
| /* Bitfields in ISR/IER/IDR/IMR */ |
| #define MACB_MFD_OFFSET 0 |
| #define MACB_MFD_SIZE 1 |
| #define MACB_RCOMP_OFFSET 1 |
| #define MACB_RCOMP_SIZE 1 |
| #define MACB_RXUBR_OFFSET 2 |
| #define MACB_RXUBR_SIZE 1 |
| #define MACB_TXUBR_OFFSET 3 |
| #define MACB_TXUBR_SIZE 1 |
| #define MACB_ISR_TUND_OFFSET 4 |
| #define MACB_ISR_TUND_SIZE 1 |
| #define MACB_ISR_RLE_OFFSET 5 |
| #define MACB_ISR_RLE_SIZE 1 |
| #define MACB_TXERR_OFFSET 6 |
| #define MACB_TXERR_SIZE 1 |
| #define MACB_TCOMP_OFFSET 7 |
| #define MACB_TCOMP_SIZE 1 |
| #define MACB_ISR_LINK_OFFSET 9 |
| #define MACB_ISR_LINK_SIZE 1 |
| #define MACB_ISR_ROVR_OFFSET 10 |
| #define MACB_ISR_ROVR_SIZE 1 |
| #define MACB_HRESP_OFFSET 11 |
| #define MACB_HRESP_SIZE 1 |
| #define MACB_PFR_OFFSET 12 |
| #define MACB_PFR_SIZE 1 |
| #define MACB_PTZ_OFFSET 13 |
| #define MACB_PTZ_SIZE 1 |
| |
| /* Bitfields in MAN */ |
| #define MACB_DATA_OFFSET 0 |
| #define MACB_DATA_SIZE 16 |
| #define MACB_CODE_OFFSET 16 |
| #define MACB_CODE_SIZE 2 |
| #define MACB_REGA_OFFSET 18 |
| #define MACB_REGA_SIZE 5 |
| #define MACB_PHYA_OFFSET 23 |
| #define MACB_PHYA_SIZE 5 |
| #define MACB_RW_OFFSET 28 |
| #define MACB_RW_SIZE 2 |
| #define MACB_SOF_OFFSET 30 |
| #define MACB_SOF_SIZE 2 |
| |
| /* Bitfields in USRIO (AVR32) */ |
| #define MACB_MII_OFFSET 0 |
| #define MACB_MII_SIZE 1 |
| #define MACB_EAM_OFFSET 1 |
| #define MACB_EAM_SIZE 1 |
| #define MACB_TX_PAUSE_OFFSET 2 |
| #define MACB_TX_PAUSE_SIZE 1 |
| #define MACB_TX_PAUSE_ZERO_OFFSET 3 |
| #define MACB_TX_PAUSE_ZERO_SIZE 1 |
| |
| /* Bitfields in USRIO (AT91) */ |
| #define MACB_RMII_OFFSET 0 |
| #define MACB_RMII_SIZE 1 |
| #define MACB_CLKEN_OFFSET 1 |
| #define MACB_CLKEN_SIZE 1 |
| |
| /* Bitfields in WOL */ |
| #define MACB_IP_OFFSET 0 |
| #define MACB_IP_SIZE 16 |
| #define MACB_MAG_OFFSET 16 |
| #define MACB_MAG_SIZE 1 |
| #define MACB_ARP_OFFSET 17 |
| #define MACB_ARP_SIZE 1 |
| #define MACB_SA1_OFFSET 18 |
| #define MACB_SA1_SIZE 1 |
| #define MACB_WOL_MTI_OFFSET 19 |
| #define MACB_WOL_MTI_SIZE 1 |
| |
| /* Bitfields in MID */ |
| #define MACB_IDNUM_OFFSET 16 |
| #define MACB_IDNUM_SIZE 16 |
| #define MACB_REV_OFFSET 0 |
| #define MACB_REV_SIZE 16 |
| |
| /* Bitfields in DCFG1. */ |
| #define GEM_DBWDEF_OFFSET 25 |
| #define GEM_DBWDEF_SIZE 3 |
| |
| /* Constants for CLK */ |
| #define MACB_CLK_DIV8 0 |
| #define MACB_CLK_DIV16 1 |
| #define MACB_CLK_DIV32 2 |
| #define MACB_CLK_DIV64 3 |
| |
| /* GEM specific constants for CLK. */ |
| #define GEM_CLK_DIV8 0 |
| #define GEM_CLK_DIV16 1 |
| #define GEM_CLK_DIV32 2 |
| #define GEM_CLK_DIV48 3 |
| #define GEM_CLK_DIV64 4 |
| #define GEM_CLK_DIV96 5 |
| |
| /* Constants for MAN register */ |
| #define MACB_MAN_SOF 1 |
| #define MACB_MAN_WRITE 1 |
| #define MACB_MAN_READ 2 |
| #define MACB_MAN_CODE 2 |
| |
| /* Bit manipulation macros */ |
| #define MACB_BIT(name) \ |
| (1 << MACB_##name##_OFFSET) |
| #define MACB_BF(name,value) \ |
| (((value) & ((1 << MACB_##name##_SIZE) - 1)) \ |
| << MACB_##name##_OFFSET) |
| #define MACB_BFEXT(name,value)\ |
| (((value) >> MACB_##name##_OFFSET) \ |
| & ((1 << MACB_##name##_SIZE) - 1)) |
| #define MACB_BFINS(name,value,old) \ |
| (((old) & ~(((1 << MACB_##name##_SIZE) - 1) \ |
| << MACB_##name##_OFFSET)) \ |
| | MACB_BF(name,value)) |
| |
| #define GEM_BIT(name) \ |
| (1 << GEM_##name##_OFFSET) |
| #define GEM_BF(name, value) \ |
| (((value) & ((1 << GEM_##name##_SIZE) - 1)) \ |
| << GEM_##name##_OFFSET) |
| #define GEM_BFEXT(name, value)\ |
| (((value) >> GEM_##name##_OFFSET) \ |
| & ((1 << GEM_##name##_SIZE) - 1)) |
| #define GEM_BFINS(name, value, old) \ |
| (((old) & ~(((1 << GEM_##name##_SIZE) - 1) \ |
| << GEM_##name##_OFFSET)) \ |
| | GEM_BF(name, value)) |
| |
| /* Register access macros */ |
| #define macb_readl(port,reg) \ |
| __raw_readl((port)->regs + MACB_##reg) |
| #define macb_writel(port,reg,value) \ |
| __raw_writel((value), (port)->regs + MACB_##reg) |
| #define gem_readl(port, reg) \ |
| __raw_readl((port)->regs + GEM_##reg) |
| #define gem_writel(port, reg, value) \ |
| __raw_writel((value), (port)->regs + GEM_##reg) |
| |
| /* |
| * Conditional GEM/MACB macros. These perform the operation to the correct |
| * register dependent on whether the device is a GEM or a MACB. For registers |
| * and bitfields that are common across both devices, use macb_{read,write}l |
| * to avoid the cost of the conditional. |
| */ |
| #define macb_or_gem_writel(__bp, __reg, __value) \ |
| ({ \ |
| if (macb_is_gem((__bp))) \ |
| gem_writel((__bp), __reg, __value); \ |
| else \ |
| macb_writel((__bp), __reg, __value); \ |
| }) |
| |
| #define macb_or_gem_readl(__bp, __reg) \ |
| ({ \ |
| u32 __v; \ |
| if (macb_is_gem((__bp))) \ |
| __v = gem_readl((__bp), __reg); \ |
| else \ |
| __v = macb_readl((__bp), __reg); \ |
| __v; \ |
| }) |
| |
| struct dma_desc { |
| u32 addr; |
| u32 ctrl; |
| }; |
| |
| /* DMA descriptor bitfields */ |
| #define MACB_RX_USED_OFFSET 0 |
| #define MACB_RX_USED_SIZE 1 |
| #define MACB_RX_WRAP_OFFSET 1 |
| #define MACB_RX_WRAP_SIZE 1 |
| #define MACB_RX_WADDR_OFFSET 2 |
| #define MACB_RX_WADDR_SIZE 30 |
| |
| #define MACB_RX_FRMLEN_OFFSET 0 |
| #define MACB_RX_FRMLEN_SIZE 12 |
| #define MACB_RX_OFFSET_OFFSET 12 |
| #define MACB_RX_OFFSET_SIZE 2 |
| #define MACB_RX_SOF_OFFSET 14 |
| #define MACB_RX_SOF_SIZE 1 |
| #define MACB_RX_EOF_OFFSET 15 |
| #define MACB_RX_EOF_SIZE 1 |
| #define MACB_RX_CFI_OFFSET 16 |
| #define MACB_RX_CFI_SIZE 1 |
| #define MACB_RX_VLAN_PRI_OFFSET 17 |
| #define MACB_RX_VLAN_PRI_SIZE 3 |
| #define MACB_RX_PRI_TAG_OFFSET 20 |
| #define MACB_RX_PRI_TAG_SIZE 1 |
| #define MACB_RX_VLAN_TAG_OFFSET 21 |
| #define MACB_RX_VLAN_TAG_SIZE 1 |
| #define MACB_RX_TYPEID_MATCH_OFFSET 22 |
| #define MACB_RX_TYPEID_MATCH_SIZE 1 |
| #define MACB_RX_SA4_MATCH_OFFSET 23 |
| #define MACB_RX_SA4_MATCH_SIZE 1 |
| #define MACB_RX_SA3_MATCH_OFFSET 24 |
| #define MACB_RX_SA3_MATCH_SIZE 1 |
| #define MACB_RX_SA2_MATCH_OFFSET 25 |
| #define MACB_RX_SA2_MATCH_SIZE 1 |
| #define MACB_RX_SA1_MATCH_OFFSET 26 |
| #define MACB_RX_SA1_MATCH_SIZE 1 |
| #define MACB_RX_EXT_MATCH_OFFSET 28 |
| #define MACB_RX_EXT_MATCH_SIZE 1 |
| #define MACB_RX_UHASH_MATCH_OFFSET 29 |
| #define MACB_RX_UHASH_MATCH_SIZE 1 |
| #define MACB_RX_MHASH_MATCH_OFFSET 30 |
| #define MACB_RX_MHASH_MATCH_SIZE 1 |
| #define MACB_RX_BROADCAST_OFFSET 31 |
| #define MACB_RX_BROADCAST_SIZE 1 |
| |
| #define MACB_TX_FRMLEN_OFFSET 0 |
| #define MACB_TX_FRMLEN_SIZE 11 |
| #define MACB_TX_LAST_OFFSET 15 |
| #define MACB_TX_LAST_SIZE 1 |
| #define MACB_TX_NOCRC_OFFSET 16 |
| #define MACB_TX_NOCRC_SIZE 1 |
| #define MACB_TX_BUF_EXHAUSTED_OFFSET 27 |
| #define MACB_TX_BUF_EXHAUSTED_SIZE 1 |
| #define MACB_TX_UNDERRUN_OFFSET 28 |
| #define MACB_TX_UNDERRUN_SIZE 1 |
| #define MACB_TX_ERROR_OFFSET 29 |
| #define MACB_TX_ERROR_SIZE 1 |
| #define MACB_TX_WRAP_OFFSET 30 |
| #define MACB_TX_WRAP_SIZE 1 |
| #define MACB_TX_USED_OFFSET 31 |
| #define MACB_TX_USED_SIZE 1 |
| |
| struct ring_info { |
| struct sk_buff *skb; |
| dma_addr_t mapping; |
| }; |
| |
| /* |
| * Hardware-collected statistics. Used when updating the network |
| * device stats by a periodic timer. |
| */ |
| struct macb_stats { |
| u32 rx_pause_frames; |
| u32 tx_ok; |
| u32 tx_single_cols; |
| u32 tx_multiple_cols; |
| u32 rx_ok; |
| u32 rx_fcs_errors; |
| u32 rx_align_errors; |
| u32 tx_deferred; |
| u32 tx_late_cols; |
| u32 tx_excessive_cols; |
| u32 tx_underruns; |
| u32 tx_carrier_errors; |
| u32 rx_resource_errors; |
| u32 rx_overruns; |
| u32 rx_symbol_errors; |
| u32 rx_oversize_pkts; |
| u32 rx_jabbers; |
| u32 rx_undersize_pkts; |
| u32 sqe_test_errors; |
| u32 rx_length_mismatch; |
| u32 tx_pause_frames; |
| }; |
| |
| struct gem_stats { |
| u32 tx_octets_31_0; |
| u32 tx_octets_47_32; |
| u32 tx_frames; |
| u32 tx_broadcast_frames; |
| u32 tx_multicast_frames; |
| u32 tx_pause_frames; |
| u32 tx_64_byte_frames; |
| u32 tx_65_127_byte_frames; |
| u32 tx_128_255_byte_frames; |
| u32 tx_256_511_byte_frames; |
| u32 tx_512_1023_byte_frames; |
| u32 tx_1024_1518_byte_frames; |
| u32 tx_greater_than_1518_byte_frames; |
| u32 tx_underrun; |
| u32 tx_single_collision_frames; |
| u32 tx_multiple_collision_frames; |
| u32 tx_excessive_collisions; |
| u32 tx_late_collisions; |
| u32 tx_deferred_frames; |
| u32 tx_carrier_sense_errors; |
| u32 rx_octets_31_0; |
| u32 rx_octets_47_32; |
| u32 rx_frames; |
| u32 rx_broadcast_frames; |
| u32 rx_multicast_frames; |
| u32 rx_pause_frames; |
| u32 rx_64_byte_frames; |
| u32 rx_65_127_byte_frames; |
| u32 rx_128_255_byte_frames; |
| u32 rx_256_511_byte_frames; |
| u32 rx_512_1023_byte_frames; |
| u32 rx_1024_1518_byte_frames; |
| u32 rx_greater_than_1518_byte_frames; |
| u32 rx_undersized_frames; |
| u32 rx_oversize_frames; |
| u32 rx_jabbers; |
| u32 rx_frame_check_sequence_errors; |
| u32 rx_length_field_frame_errors; |
| u32 rx_symbol_errors; |
| u32 rx_alignment_errors; |
| u32 rx_resource_errors; |
| u32 rx_overruns; |
| u32 rx_ip_header_checksum_errors; |
| u32 rx_tcp_checksum_errors; |
| u32 rx_udp_checksum_errors; |
| }; |
| |
| struct macb { |
| void __iomem *regs; |
| |
| unsigned int rx_tail; |
| struct dma_desc *rx_ring; |
| void *rx_buffers; |
| |
| unsigned int tx_head, tx_tail; |
| struct dma_desc *tx_ring; |
| struct ring_info *tx_skb; |
| |
| spinlock_t lock; |
| struct platform_device *pdev; |
| struct clk *pclk; |
| struct clk *hclk; |
| struct net_device *dev; |
| struct napi_struct napi; |
| struct net_device_stats stats; |
| union { |
| struct macb_stats macb; |
| struct gem_stats gem; |
| } hw_stats; |
| |
| dma_addr_t rx_ring_dma; |
| dma_addr_t tx_ring_dma; |
| dma_addr_t rx_buffers_dma; |
| |
| unsigned int rx_pending, tx_pending; |
| |
| struct mii_bus *mii_bus; |
| struct phy_device *phy_dev; |
| unsigned int link; |
| unsigned int speed; |
| unsigned int duplex; |
| |
| phy_interface_t phy_interface; |
| }; |
| |
| static inline bool macb_is_gem(struct macb *bp) |
| { |
| return MACB_BFEXT(IDNUM, macb_readl(bp, MID)) == 0x2; |
| } |
| |
| #endif /* _MACB_H */ |