| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2011 Ilya Yanok, Emcraft Systems |
| * |
| * Based on: mach-davinci/emac_defs.h |
| * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net> |
| */ |
| |
| #ifndef _DAVINCI_EMAC_H_ |
| #define _DAVINCI_EMAC_H_ |
| /* Ethernet Min/Max packet size */ |
| #define EMAC_MIN_ETHERNET_PKT_SIZE 60 |
| #define EMAC_MAX_ETHERNET_PKT_SIZE 1518 |
| /* Buffer size (should be aligned on 32 byte and cache line) */ |
| #define EMAC_RXBUF_SIZE ALIGN(ALIGN(EMAC_MAX_ETHERNET_PKT_SIZE, 32),\ |
| ARCH_DMA_MINALIGN) |
| |
| /* Number of RX packet buffers |
| * NOTE: Only 1 buffer supported as of now |
| */ |
| #define EMAC_MAX_RX_BUFFERS 10 |
| |
| /*********************************************** |
| ******** Internally used macros *************** |
| ***********************************************/ |
| |
| #define EMAC_CH_TX 1 |
| #define EMAC_CH_RX 0 |
| |
| /* Each descriptor occupies 4 words, lets start RX desc's at 0 and |
| * reserve space for 64 descriptors max |
| */ |
| #define EMAC_RX_DESC_BASE 0x0 |
| #define EMAC_TX_DESC_BASE 0x1000 |
| |
| /* EMAC Teardown value */ |
| #define EMAC_TEARDOWN_VALUE 0xfffffffc |
| |
| /* MII Status Register */ |
| #define MII_STATUS_REG 1 |
| /* PHY Configuration register */ |
| #define PHY_CONF_TXCLKEN (1 << 5) |
| |
| /* Number of statistics registers */ |
| #define EMAC_NUM_STATS 36 |
| |
| /* EMAC Descriptor */ |
| typedef volatile struct _emac_desc |
| { |
| u_int32_t next; /* Pointer to next descriptor |
| in chain */ |
| u_int8_t *buffer; /* Pointer to data buffer */ |
| u_int32_t buff_off_len; /* Buffer Offset(MSW) and Length(LSW) */ |
| u_int32_t pkt_flag_len; /* Packet Flags(MSW) and Length(LSW) */ |
| } emac_desc; |
| |
| /* CPPI bit positions */ |
| #define EMAC_CPPI_SOP_BIT (0x80000000) |
| #define EMAC_CPPI_EOP_BIT (0x40000000) |
| #define EMAC_CPPI_OWNERSHIP_BIT (0x20000000) |
| #define EMAC_CPPI_EOQ_BIT (0x10000000) |
| #define EMAC_CPPI_TEARDOWN_COMPLETE_BIT (0x08000000) |
| #define EMAC_CPPI_PASS_CRC_BIT (0x04000000) |
| |
| #define EMAC_CPPI_RX_ERROR_FRAME (0x03fc0000) |
| |
| #define EMAC_MACCONTROL_MIIEN_ENABLE (0x20) |
| #define EMAC_MACCONTROL_FULLDUPLEX_ENABLE (0x1) |
| #define EMAC_MACCONTROL_GIGABIT_ENABLE (1 << 7) |
| #define EMAC_MACCONTROL_GIGFORCE (1 << 17) |
| #define EMAC_MACCONTROL_RMIISPEED_100 (1 << 15) |
| |
| #define EMAC_MAC_ADDR_MATCH (1 << 19) |
| #define EMAC_MAC_ADDR_IS_VALID (1 << 20) |
| |
| #define EMAC_RXMBPENABLE_RXCAFEN_ENABLE (0x200000) |
| #define EMAC_RXMBPENABLE_RXBROADEN (0x2000) |
| |
| #define MDIO_CONTROL_IDLE (0x80000000) |
| #define MDIO_CONTROL_ENABLE (0x40000000) |
| #define MDIO_CONTROL_FAULT_ENABLE (0x40000) |
| #define MDIO_CONTROL_FAULT (0x80000) |
| #define MDIO_USERACCESS0_GO (0x80000000) |
| #define MDIO_USERACCESS0_WRITE_READ (0x0) |
| #define MDIO_USERACCESS0_WRITE_WRITE (0x40000000) |
| #define MDIO_USERACCESS0_ACK (0x20000000) |
| |
| /* Ethernet MAC Registers Structure */ |
| typedef struct { |
| dv_reg TXIDVER; |
| dv_reg TXCONTROL; |
| dv_reg TXTEARDOWN; |
| u_int8_t RSVD0[4]; |
| dv_reg RXIDVER; |
| dv_reg RXCONTROL; |
| dv_reg RXTEARDOWN; |
| u_int8_t RSVD1[100]; |
| dv_reg TXINTSTATRAW; |
| dv_reg TXINTSTATMASKED; |
| dv_reg TXINTMASKSET; |
| dv_reg TXINTMASKCLEAR; |
| dv_reg MACINVECTOR; |
| u_int8_t RSVD2[12]; |
| dv_reg RXINTSTATRAW; |
| dv_reg RXINTSTATMASKED; |
| dv_reg RXINTMASKSET; |
| dv_reg RXINTMASKCLEAR; |
| dv_reg MACINTSTATRAW; |
| dv_reg MACINTSTATMASKED; |
| dv_reg MACINTMASKSET; |
| dv_reg MACINTMASKCLEAR; |
| u_int8_t RSVD3[64]; |
| dv_reg RXMBPENABLE; |
| dv_reg RXUNICASTSET; |
| dv_reg RXUNICASTCLEAR; |
| dv_reg RXMAXLEN; |
| dv_reg RXBUFFEROFFSET; |
| dv_reg RXFILTERLOWTHRESH; |
| u_int8_t RSVD4[8]; |
| dv_reg RX0FLOWTHRESH; |
| dv_reg RX1FLOWTHRESH; |
| dv_reg RX2FLOWTHRESH; |
| dv_reg RX3FLOWTHRESH; |
| dv_reg RX4FLOWTHRESH; |
| dv_reg RX5FLOWTHRESH; |
| dv_reg RX6FLOWTHRESH; |
| dv_reg RX7FLOWTHRESH; |
| dv_reg RX0FREEBUFFER; |
| dv_reg RX1FREEBUFFER; |
| dv_reg RX2FREEBUFFER; |
| dv_reg RX3FREEBUFFER; |
| dv_reg RX4FREEBUFFER; |
| dv_reg RX5FREEBUFFER; |
| dv_reg RX6FREEBUFFER; |
| dv_reg RX7FREEBUFFER; |
| dv_reg MACCONTROL; |
| dv_reg MACSTATUS; |
| dv_reg EMCONTROL; |
| dv_reg FIFOCONTROL; |
| dv_reg MACCONFIG; |
| dv_reg SOFTRESET; |
| u_int8_t RSVD5[88]; |
| dv_reg MACSRCADDRLO; |
| dv_reg MACSRCADDRHI; |
| dv_reg MACHASH1; |
| dv_reg MACHASH2; |
| dv_reg BOFFTEST; |
| dv_reg TPACETEST; |
| dv_reg RXPAUSE; |
| dv_reg TXPAUSE; |
| u_int8_t RSVD6[16]; |
| dv_reg RXGOODFRAMES; |
| dv_reg RXBCASTFRAMES; |
| dv_reg RXMCASTFRAMES; |
| dv_reg RXPAUSEFRAMES; |
| dv_reg RXCRCERRORS; |
| dv_reg RXALIGNCODEERRORS; |
| dv_reg RXOVERSIZED; |
| dv_reg RXJABBER; |
| dv_reg RXUNDERSIZED; |
| dv_reg RXFRAGMENTS; |
| dv_reg RXFILTERED; |
| dv_reg RXQOSFILTERED; |
| dv_reg RXOCTETS; |
| dv_reg TXGOODFRAMES; |
| dv_reg TXBCASTFRAMES; |
| dv_reg TXMCASTFRAMES; |
| dv_reg TXPAUSEFRAMES; |
| dv_reg TXDEFERRED; |
| dv_reg TXCOLLISION; |
| dv_reg TXSINGLECOLL; |
| dv_reg TXMULTICOLL; |
| dv_reg TXEXCESSIVECOLL; |
| dv_reg TXLATECOLL; |
| dv_reg TXUNDERRUN; |
| dv_reg TXCARRIERSENSE; |
| dv_reg TXOCTETS; |
| dv_reg FRAME64; |
| dv_reg FRAME65T127; |
| dv_reg FRAME128T255; |
| dv_reg FRAME256T511; |
| dv_reg FRAME512T1023; |
| dv_reg FRAME1024TUP; |
| dv_reg NETOCTETS; |
| dv_reg RXSOFOVERRUNS; |
| dv_reg RXMOFOVERRUNS; |
| dv_reg RXDMAOVERRUNS; |
| u_int8_t RSVD7[624]; |
| dv_reg MACADDRLO; |
| dv_reg MACADDRHI; |
| dv_reg MACINDEX; |
| u_int8_t RSVD8[244]; |
| dv_reg TX0HDP; |
| dv_reg TX1HDP; |
| dv_reg TX2HDP; |
| dv_reg TX3HDP; |
| dv_reg TX4HDP; |
| dv_reg TX5HDP; |
| dv_reg TX6HDP; |
| dv_reg TX7HDP; |
| dv_reg RX0HDP; |
| dv_reg RX1HDP; |
| dv_reg RX2HDP; |
| dv_reg RX3HDP; |
| dv_reg RX4HDP; |
| dv_reg RX5HDP; |
| dv_reg RX6HDP; |
| dv_reg RX7HDP; |
| dv_reg TX0CP; |
| dv_reg TX1CP; |
| dv_reg TX2CP; |
| dv_reg TX3CP; |
| dv_reg TX4CP; |
| dv_reg TX5CP; |
| dv_reg TX6CP; |
| dv_reg TX7CP; |
| dv_reg RX0CP; |
| dv_reg RX1CP; |
| dv_reg RX2CP; |
| dv_reg RX3CP; |
| dv_reg RX4CP; |
| dv_reg RX5CP; |
| dv_reg RX6CP; |
| dv_reg RX7CP; |
| } emac_regs; |
| |
| /* EMAC Wrapper Registers Structure */ |
| typedef struct { |
| #ifdef DAVINCI_EMAC_VERSION2 |
| dv_reg idver; |
| dv_reg softrst; |
| dv_reg emctrl; |
| dv_reg c0rxthreshen; |
| dv_reg c0rxen; |
| dv_reg c0txen; |
| dv_reg c0miscen; |
| dv_reg c1rxthreshen; |
| dv_reg c1rxen; |
| dv_reg c1txen; |
| dv_reg c1miscen; |
| dv_reg c2rxthreshen; |
| dv_reg c2rxen; |
| dv_reg c2txen; |
| dv_reg c2miscen; |
| dv_reg c0rxthreshstat; |
| dv_reg c0rxstat; |
| dv_reg c0txstat; |
| dv_reg c0miscstat; |
| dv_reg c1rxthreshstat; |
| dv_reg c1rxstat; |
| dv_reg c1txstat; |
| dv_reg c1miscstat; |
| dv_reg c2rxthreshstat; |
| dv_reg c2rxstat; |
| dv_reg c2txstat; |
| dv_reg c2miscstat; |
| dv_reg c0rximax; |
| dv_reg c0tximax; |
| dv_reg c1rximax; |
| dv_reg c1tximax; |
| dv_reg c2rximax; |
| dv_reg c2tximax; |
| #else |
| u_int8_t RSVD0[4100]; |
| dv_reg EWCTL; |
| dv_reg EWINTTCNT; |
| #endif |
| } ewrap_regs; |
| |
| /* EMAC MDIO Registers Structure */ |
| typedef struct { |
| dv_reg VERSION; |
| dv_reg CONTROL; |
| dv_reg ALIVE; |
| dv_reg LINK; |
| dv_reg LINKINTRAW; |
| dv_reg LINKINTMASKED; |
| u_int8_t RSVD0[8]; |
| dv_reg USERINTRAW; |
| dv_reg USERINTMASKED; |
| dv_reg USERINTMASKSET; |
| dv_reg USERINTMASKCLEAR; |
| u_int8_t RSVD1[80]; |
| dv_reg USERACCESS0; |
| dv_reg USERPHYSEL0; |
| dv_reg USERACCESS1; |
| dv_reg USERPHYSEL1; |
| } mdio_regs; |
| |
| int davinci_eth_phy_read(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t *data); |
| int davinci_eth_phy_write(u_int8_t phy_addr, u_int8_t reg_num, u_int16_t data); |
| |
| typedef struct { |
| char name[64]; |
| int (*init)(int phy_addr); |
| int (*is_phy_connected)(int phy_addr); |
| int (*get_link_speed)(int phy_addr); |
| int (*auto_negotiate)(int phy_addr); |
| } phy_t; |
| |
| #endif /* _DAVINCI_EMAC_H_ */ |