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      1 /* $NetBSD: if_bcereg.h,v 1.6 2023/06/27 21:43:58 nisimura Exp $	 */
      2 
      3 /*
      4  * Copyright (c) 2003 Clifford Wright. All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     22  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     24  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     27  * SUCH DAMAGE.
     28  */
     29 
     30 /* Broadcom BCM440x */
     31 
     32 /* PCI registers defined in the PCI 2.2 spec. */
     33 #define BCE_PCI_BAR0			0x10
     34 
     35 /* Sonics SB register access */
     36 #define BCE_REG_WIN			0x80
     37 #define BCE_SONICS_WIN			0x18002000
     38 
     39 /* Sonics PCI control */
     40 #define BCE_SPCI_TR2			0x0108	/* Sonics to PCI translation
     41 						 * 2 */
     42 /* bit defines */
     43 #define SBTOPCI_PREF			0x4	/* prefetch enable */
     44 #define SBTOPCI_BURST			0x8	/* burst enable */
     45 #define BCE_SBINTVEC			0x0f94
     46 /* interrupt bits */
     47 #define SBIV_ENET0			0x02	/* enable for enet 0 */
     48 #define SBIV_ENET1			0x40	/* enable for enet 1 */
     49 
     50 
     51 /* Host Interface Registers */
     52 
     53 #define BCE_DEVCTL			0x0000	/* device control */
     54 /* device control bits */
     55 #define BCE_DC_IP			0x00000400	/* internal phy present */
     56 #define BCE_DC_ER			0x00008000	/* ephy reset */
     57 /* Interrupt Control */
     58 #define BCE_INT_STS			0x0020
     59 #define BCE_INT_MASK			0x0024
     60 /* bits for both status, and mask */
     61 #define I_TO				0x00000080	/* general timeout */
     62 #define I_PC				0x00000400	/* descriptor error */
     63 #define I_PD				0x00000800	/* data error */
     64 #define I_DE				0x00001000	/* desc. protocol error */
     65 #define I_RU				0x00002000	/* rx desc. underflow */
     66 #define I_RO				0x00004000	/* rx fifo overflow */
     67 #define I_XU				0x00008000	/* tx fifo underflow */
     68 #define I_RI				0x00010000	/* receive interrupt */
     69 #define I_XI				0x01000000	/* transmit interrupt */
     70 
     71 /* Ethernet MAC Control */
     72 #define BCE_MACCTL			0x00A8	/* ethernet mac control */
     73 /* mac control bits */
     74 #define BCE_EMC_CRC32_ENAB		0x00000001	/* crc32 generation */
     75 #define BCE_EMC_PDOWN			0x00000004	/* PHY powerdown */
     76 #define BCE_EMC_EDET			0x00000008	/* PHY energy detect */
     77 #define BCE_EMC_LED			0x000000e0	/* PHY LED control */
     78 
     79 /* recv coalesce; 31:24 frame upper bound, 23:0 guard period */
     80 #define BCE_DMAI_CTL			0x0100
     81 
     82 /* DMA registers */
     83 #define BCE_DMA_TXCTL			0x0200	/* transmit control */
     84 /* transmit control bits */
     85 #define XC_XE				0x1	/* transmit enable */
     86 #define XC_LE				0x4	/* loopback enable */
     87 #define BCE_DMA_TXADDR			0x0204	/* tx ring base address */
     88 #define BCE_DMA_DPTR			0x0208	/* last tx descriptor */
     89 #define BCE_DMA_TXSTATUS		0x020C	/* active desc, etc */
     90 #define BCE_DMA_RXCTL			0x0210	/* enable, etc */
     91 #define BCE_DMA_RXADDR			0x0214	/* rx ring base address */
     92 #define BCE_DMA_RXDPTR			0x0218	/* last descriptor */
     93 #define BCE_DMA_RXSTATUS		0x021C	/* active desc, etc */
     94 /* receive status bits */
     95 #define RS_CD_MASK			0x0fff	/* current descriptor pointer */
     96 #define RS_DMA_IDLE			0x2000	/* DMA is idle */
     97 #define RS_ERROR			0xf0000	/* had an error */
     98 
     99 /* Ethernet MAC control registers */
    100 #define BCE_RX_CTL			0x0400	/* receive config */
    101 /* config bits */
    102 #define ERC_DB				0x00000001	/* disable broadcast */
    103 #define ERC_AM				0x00000002	/* rx all multicast */
    104 #define ERC_PE				0x00000008	/* promiscuous enable */
    105 
    106 #define BCE_RX_MAX			0x0404	/* max packet length */
    107 #define BCE_TX_MAX			0x0408
    108 #define BCE_MI_CTL			0x0410
    109 #define BCE_MI_COMM			0x0414
    110 #define BCE_MI_STS			0x041C
    111 /* mii status bits */
    112 #define BCE_MIINTR			0x00000001	/* mii mdio interrupt */
    113 
    114 #define BCE_FILT_LOW			0x0420	/* mac low 4 bytes */
    115 #define BCE_FILT_HI			0x0424	/* mac hi 2 bytes */
    116 #define BCE_FILT_CTL			0x0428	/* packet filter ctrl */
    117 #define BCE_ENET_CTL			0x042C
    118 /* bits for mac control */
    119 #define EC_EE				0x00000001	/* emac enable */
    120 #define EC_ED				0x00000002	/* disable emac */
    121 #define EC_ES				0x00000004	/* soft reset emac */
    122 #define EC_EP				0x00000008	/* external phy */
    123 #define BCE_TX_CTL			0x0430
    124 /* bits for transmit control */
    125 #define EXC_FD				0x00000001	/* full duplex */
    126 #define BCE_TX_WATER			0x0434	/* tx watermark */
    127 
    128 /* statistics counters */
    129 #define BCE_RX_PKTS			0x058C
    130 
    131 /* SiliconBackplane registers */
    132 #define BCE_SBIMSTATE			0x0f90
    133 #define BCE_SBTMSTATELOW		0x0f98
    134 #define BCE_SBTMSTATEHI			0x0f9C
    135 #define SBTML_RESET			0x1	/* reset */
    136 #define SBTML_REJ			0x2	/* reject */
    137 #define SBTML_CLK			0x10000	/* clock enable */
    138 #define SBTML_FGC			0x20000	/* force gated clocks on */
    139 
    140 /* MI communication register */
    141 #define BCE_MICOMM_DATA			0x0000FFFF
    142 
    143 #define BCE_MIREG(x)			((x & 0x1F) << 18)
    144 #define BCE_MIPHY(x)			((x & 0x1F) << 23)
    145 
    146 /* Magic constants.... */
    147 #define BCE_MAGIC_PHYEMAC_BASE		0x1000
    148 #define	 BCE_MAGIC_PHY			(BCE_MAGIC_PHYEMAC_BASE + 90)
    149 #define	 BCE_MAGIC_ENET0		(BCE_MAGIC_PHYEMAC_BASE + 79)
    150 #define	 BCE_MAGIC_ENET1		(BCE_MAGIC_PHYEMAC_BASE + 78)
    151 #define	 BCE_MAGIC_ENET2		(BCE_MAGIC_PHYEMAC_BASE + 81)
    152 #define	 BCE_MAGIC_ENET3		(BCE_MAGIC_PHYEMAC_BASE + 80)
    153 #define	 BCE_MAGIC_ENET4		(BCE_MAGIC_PHYEMAC_BASE + 83)
    154 #define	 BCE_MAGIC_ENET5		(BCE_MAGIC_PHYEMAC_BASE + 82)
    155 
    156 #define  SBIM_MAGIC_ERRORBITS		0x60000
    157