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/*-
* Copyright (c) 2006 M. Warner Losh. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* $FreeBSD: release/9.1.0/sys/arm/at91/if_atereg.h 213496 2010-10-06 22:25:21Z cognet $ */
#ifndef ARM_AT91_IF_ATEREG_H
#define ARM_AT91_IF_ATEREG_H
/* deines begining ETHB_ are EMACB (newer SAM9 hardware) versions only */
#define ETH_CTL 0x00 /* EMAC Control Register */
#define ETH_CFG 0x04 /* EMAC Configuration Register */
#define ETH_SR 0x08 /* EMAC STatus Register */
#define ETH_TAR 0x0c /* EMAC Transmit Address Register */
#define ETH_TCR 0x10 /* EMAC Transmit Control Register */
#define ETH_TSR 0x14 /* EMAC Transmit Status Register */
#define ETH_RBQP 0x18 /* EMAC Receive Buffer Queue Pointer */
#define ETHB_TBQP 0x1c /* reserved */
#define ETH_RSR 0x20 /* EMAC Receive Status Register */
#define ETH_ISR 0x24 /* EMAC Interrupt Status Register */
#define ETH_IER 0x28 /* EMAC Interrupt Enable Register */
#define ETH_IDR 0x2c /* EMAC Interrupt Disable Register */
#define ETH_IMR 0x30 /* EMAC Interrupt Mask Register */
#define ETH_MAN 0x34 /* EMAC PHY Maintenance Register */
/* 0x38 reserved */
/* 0x3c reserved */
#define ETH_FRA 0x40 /* Frames Transmitted OK Register */
#define ETH_SCOL 0x44 /* Single Collision Frame Register */
#define ETH_MCOL 0x48 /* Multiple Collision Frame Register */
#define ETH_OK 0x4c /* Frames Received OK Register */
#define ETH_SEQE 0x50 /* Frame Check Sequence Error Reg */
#define ETH_ALE 0x54 /* Alignment Error Register */
#define ETH_DTE 0x58 /* Deferred Transmittion Frame Reg */
#define ETH_LCOL 0x5c /* Late Collision Register */
#define ETH_ECOL 0x60 /* Excessive Collision Register */
#define ETH_TUE 0x64 /* Transmit Underrun Error Register */
#define ETH_CSE 0x68 /* Carrier Sense Error Register */
#define ETH_DRFC 0x6c /* Discarded RX Frame Register */
#define ETH_ROV 0x68 /* Receive Overrun Register */
#define ETH_CDE 0x64 /* Code Error Register */
#define ETH_ELR 0x78 /* Excessive Length Error Register */
#define ETH_RJB 0x7c /* Receive Jabber Register */
#define ETH_USF 0x80 /* Undersize Frame Register */
#define ETH_SQEE 0x84 /* SQE Test Error Register */
/* 0x88 reserved */
/* 0x8c reserved */
#define ETH_HSL 0x90 /* EMAC Hash Address Low [31:0] */
#define ETH_HSH 0x94 /* EMAC Hash Address High [63:32] */
#define ETH_SA1L 0x98 /* EMAC Specific Address 1 Low */
#define ETH_SA1H 0x9c /* EMAC Specific Address 1 High */
#define ETH_SA2L 0xa0 /* EMAC Specific Address 2 Low */
#define ETH_SA2H 0xa4 /* EMAC Specific Address 2 High */
#define ETH_SA3L 0xa8 /* EMAC Specific Address 3 Low */
#define ETH_SA3H 0xac /* EMAC Specific Address 3 High */
#define ETH_SA4L 0xb0 /* EMAC Specific Address 4 Low */
#define ETH_SA4H 0xb4 /* EMAC Specific Address 4 High */
#define ETHB_TID 0xb8 /* EMAC Type ID Checking */
#define ETHB_UIO 0xC0 /* EMAC User I/O Reg */
/* ETH_CTL */
#define ETH_CTL_LB (1U << 0) /* LB: Loopback */
#define ETH_CTL_LBL (1U << 1) /* LBL: Loopback Local */
#define ETH_CTL_RE (1U << 2) /* RE: Receive Enable */
#define ETH_CTL_TE (1U << 3) /* TE: Transmit Enable */
#define ETH_CTL_MPE (1U << 4) /* MPE: Management Port Enable */
#define ETH_CTL_CSR (1U << 5) /* CSR: Clear Statistics Registers */
#define ETH_CTL_ISR (1U << 6) /* ISR: Incremenet Statistics Regs */
#define ETH_CTL_WES (1U << 7) /* WES: Write Enable Statistics regs */
#define ETH_CTL_BP (1U << 8) /* BP: Back Pressure */
#define ETHB_CTL_TGO (1U << 9) /* TGO: Transmitter Start */
#define ETHB_CTL_TSTP (1U << 10) /* TSTP: Transmitter Stop */
/* ETH_CFG */
#define ETH_CFG_SPD (1U << 0) /* SPD: Speed 1 == 100: 0 == 10 */
#define ETH_CFG_FD (1U << 1) /* FD: Full duplex */
#define ETH_CFG_BR (1U << 2) /* BR: Bit Rate (optional?) */
/* bit 3 reserved */
#define ETH_CFG_CAF (1U << 4) /* CAF: Copy All Frames */
#define ETH_CFG_NBC (1U << 5) /* NBC: No Broadcast */
#define ETH_CFG_MTI (1U << 6) /* MTI: Multicast Hash Enable */
#define ETH_CFG_UNI (1U << 7) /* UNI: Unicast Hash Enable */
#define ETH_CFG_BIG (1U << 8) /* BIG: Receive 1522 Bytes */
#define ETH_CFG_EAE (1U << 9) /* EAE: External Address Match En */
#define ETH_CFG_CLK_8 (0U << 10) /* CLK: Clock / 8 */
#define ETH_CFG_CLK_16 (1U << 10) /* CLK: Clock / 16 */
#define ETH_CFG_CLK_32 (2U << 10) /* CLK: Clock / 32 */
#define ETH_CFG_CLK_64 (3U << 10) /* CLK: Clock / 64 */
#define ETH_CFG_RTY (1U << 12) /* RTY: Retry Test*/
#define ETH_CFG_RMII (1U << 13) /* RMII: Reduce MII */
#define ETHB_CFG_JBO (1U << 3) /* JBO: Jumbo Frames */
#define ETHB_CFG_PAE (1U << 13) /* PAE: Pause Enable */
#define ETHB_CFG_RBOF_0 (0U << 14) /* RBOF: Rx Buffer Offset */
#define ETHB_CFG_RBOF_1 (1U << 14) /* RBOF: Rx Buffer Offset */
#define ETHB_CFG_RBOF_2 (3U << 14) /* RBOF: Rx Buffer Offset */
#define ETHB_CFG_RBOF_3 (3U << 14) /* RBOF: Rx Buffer Offset */
#define ETHB_CFG_RCLE (1U << 16) /* RCLE: Rx Length Check Enable */
#define ETHB_CFG_DRFC (1U << 17) /* DRFC: Discard Rx FCS */
#define ETHB_CFG_RHD (1U << 18) /* RHD: RX TX'ed frame in half-duplex */
#define ETHB_CFG_IFCS (1U << 19) /* IFCS: Ignore bad RX FCS */
/* ETH_SR */
#define ETH_SR_LINK (1U << 0) /* Reserved! */
#define ETH_SR_MDIO (1U << 1) /* MDIO pin status */
#define ETH_SR_IDLE (1U << 2) /* IDLE (PHY logic) */
/* ETH_TCR */
#define ETH_TCR_NCRC (1U << 15) /* NCRC: No CRC */
/* ETH_TSR */
#define ETH_TSR_OVR (1U << 0) /* OVR: Ethernet Transmit Overrun */
#define ETH_TSR_COL (1U << 1) /* COL: Collision Occurred */
#define ETH_TSR_RLE (1U << 2) /* RLE: Retry Limit Exceeded */
#define ETH_TSR_IDLE (1U << 3) /* IDLE: Transmitter Idle */
#define ETH_TSR_BNQ (1U << 4) /* BNQ: Enet Tran Buff not Queued */
#define ETH_TSR_COMP (1U << 5) /* COMP: Transmit Complete */
#define ETH_TSR_UND (1U << 6) /* UND: Transmit Underrun */
#define ETH_TSR_WR_MASK (0x67) /* write 1 to clear bits */
/* ETH_RSR */
#define ETH_RSR_BNA (1U << 0) /* BNA: Buffer Not Available */
#define ETH_RSR_REC (1U << 1) /* REC: Frame Received */
#define ETH_RSR_OVR (1U << 2) /* OVR: RX Overrun */
/* ETH_ISR */
#define ETH_ISR_DONE (1U << 0) /* DONE: Management Done */
#define ETH_ISR_RCOM (1U << 1) /* RCOM: Receive Complete */
#define ETH_ISR_RBNA (1U << 2) /* RBNA: Receive Buffer Not Avail */
#define ETH_ISR_TOVR (1U << 3) /* TOVR: Transmit Buffer Overrun */
#define ETH_ISR_TUND (1U << 4) /* TUND: Transmit Buffer Underrun */
#define ETH_ISR_RTRY (1U << 5) /* RTRY: Retry Limit */
#define ETH_ISR_TBRE (1U << 6) /* TBRE: Trasnmit Buffer Reg empty */
#define ETH_ISR_TCOM (1U << 7) /* TCOM: Transmit Complete */
#define ETH_ISR_TIDLE (1U << 8) /* TIDLE: Transmit Idle */
#define ETH_ISR_LINK (1U << 9) /* LINK: Link pin delta (optional) */
#define ETH_ISR_ROVR (1U << 10) /* ROVR: RX Overrun */
#define ETH_ISR_ABT (1U << 11) /* ABT: Abort */
/* ETHB_UIO */
#define ETHB_UIO_RMII (1U << 0) /* RMII: Reduce MII */
#define ETHB_UIO_CLKE (1U << 1) /* CLKE: Clock Enable */
/* ETH_MAN */
#define ETH_MAN_BITS 0x40020000 /* HIGH and CODE bits */
#define ETH_MAN_READ (2U << 28)
#define ETH_MAN_WRITE (1U << 28)
#define ETH_MAN_PHYA_BIT 23
#define ETH_MAN_REGA_BIT 18
#define ETH_MAN_VALUE_MASK 0xffffU
#define ETH_MAN_REG_WR(phy, reg, val) \
(ETH_MAN_BITS | ETH_MAN_WRITE | ((phy) << ETH_MAN_PHYA_BIT) | \
((reg) << ETH_MAN_REGA_BIT) | ((val) & ETH_MAN_VALUE_MASK))
#define ETH_MAN_REG_RD(phy, reg) \
(ETH_MAN_BITS | ETH_MAN_READ | ((phy) << ETH_MAN_PHYA_BIT) | \
((reg) << ETH_MAN_REGA_BIT))
typedef struct {
uint32_t addr;
#define ETH_CPU_OWNER (1U << 0)
#define ETH_WRAP_BIT (1U << 1)
#define ETH_ADR_MASK ~(EHT_CPU_OWNER | ETH_WRAP_BIT)
uint32_t status;
#define ETH_LEN_MASK 0x7ff
#define ETH_BUF_FIRST (1U << 14) /* Packet matched addr 4 */
#define ETH_BUF_LAST (1U << 15) /* Packet matched addr 4 */
#define ETH_MAC_LOCAL_4 (1U << 23) /* Packet matched addr 4 */
#define ETH_MAC_LOCAL_3 (1U << 24) /* Packet matched addr 3 */
#define ETH_MAC_LOCAL_2 (1U << 25) /* Packet matched addr 2 */
#define ETH_MAC_LOCAL_1 (1U << 26) /* Packet matched addr 1 */
#define ETH_MAC_UNK (1U << 27) /* Unkown source address RFU */
#define ETH_MAC_EXT (1U << 28) /* External Address */
#define ETH_MAC_UCAST (1U << 29) /* Unicast hash match */
#define ETH_MAC_MCAST (1U << 30) /* Multicast hash match */
#define ETH_MAC_ONES (1U << 31) /* Global all ones bcast addr */
} eth_rx_desc_t;
typedef struct {
uint32_t addr;
uint32_t status;
#define ETHB_TX_LEN_MASK 0x7ff
#define ETHB_TX_BUF_LAST (1U << 15) /* Last buffer in packet */
#define ETHB_TX_NOCRC (1U << 16) /* Don't xmit CRC*/
#define ETHB_TX_BUFE (1U << 27) /* Buffers exhausted mid frame */
#define ETHB_TX_TUND (1U << 28) /* Transmit Underrun */
#define ETHB_TX_RTRYE (1U << 29) /* Re-try limit exceeded */
#define ETHB_TX_WRAP (1U << 30) /* Last descritor in list */
#define ETHB_TX_USED (1U << 31) /* Packet Transmitted */
} eth_tx_desc_t;
#endif /* ARM_AT91_IF_ATEREG_H */