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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [net/] [gmac.h] - Rev 1765
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/* * Definitions for the GMAC ethernet chip, used in the * Apple G4 powermac. */ /* * GMAC register definitions * * Note: We encode the register size the same way Apple does. I didn't copy * Apple's source as-is to avoid licence issues however. That's really * painful to re-define all those registers ... * The constants themselves were partially found in OF code, in Sun * GEM driver and in Apple's Darwin GMAC driver */ #define REG_SZ_8 0x00000000 #define REG_SZ_16 0x40000000 #define REG_SZ_32 0x80000000 #define REG_MASK 0x0FFFFFFF /* * Global registers */ /* -- 0x0004 RW Global configuration * d: 0x00000042 */ #define GM_GCONF (0x0004 | REG_SZ_16) #define GM_GCONF_BURST_SZ 0x0001 /* 1: 64 bytes/burst, 0: infinite */ #define GM_GCONF_TXDMA_LIMIT_MASK 0x003e /* 5-1: No of 64 bytes transfers */ #define GM_GCONF_TXDMA_LIMIT_SHIFT 1 #define GM_GCONF_RXDMA_LIMIT_MASK 0x07c0 /* 10-6: No of 64 bytes transfers */ #define GM_GCONF_RXDMA_LIMIT_SHIFT 6 /* -- 0x000C R-C Global Interrupt status. * d: 0x00000000 bits 0-6 cleared on read (C) */ #define GM_IRQ_STATUS (0x000c | REG_SZ_32) #define GM_IRQ_TX_INT_ME 0x00000001 /* C Frame with INT_ME bit set in fifo */ #define GM_IRQ_TX_ALL 0x00000002 /* C TX descriptor ring empty */ #define GM_IRQ_TX_DONE 0x00000004 /* C moved from host to TX fifo */ #define GM_IRQ_RX_DONE 0x00000010 /* C moved from RX fifo to host */ #define GM_IRQ_RX_NO_BUF 0x00000020 /* C No RX buffer available */ #define GM_IRQ_RX_TAG_ERR 0x00000040 /* C RX tag error */ #define GM_IRQ_PCS 0x00002000 /* PCS interrupt ? */ #define GM_IRQ_MAC_TX 0x00004000 /* MAC tx register set */ #define GM_IRQ_MAC_RX 0x00008000 /* MAC rx register set */ #define GM_IRQ_MAC_CTRL 0x00010000 /* MAC control register set */ #define GM_IRQ_MIF 0x00020000 /* MIF status register set */ #define GM_IRQ_BUS_ERROR 0x00040000 /* Bus error status register set */ #define GM_IRQ_TX_COMP 0xfff80000 /* TX completion mask */ /* -- 0x0010 RW Interrupt mask. * d: 0xFFFFFFFF */ #define GM_IRQ_MASK (0x0010 | REG_SZ_32) /* -- 0x0014 WO Interrupt ack. * Ack. "high" interrupts */ #define GM_IRQ_ACK (0x0014 | REG_SZ_32) /* -- 0x001C WO Alias of status register (no auto-clear of "low" interrupts) */ #define GM_IRQ_ALT_STAT (0x001C | REG_SZ_32) /* -- 0x1000 R-C PCI Error status register */ #define GM_PCI_ERR_STAT (0x1000 | REG_SZ_8) #define GM_PCI_ERR_BAD_ACK 0x01 /* Bad Ack64 */ #define GM_PCI_ERR_TIMEOUT 0x02 /* Transaction timeout */ #define GM_PCI_ERR_OTHER 0x04 /* Any other PCI error */ /* -- 0x1004 RW PCI Error mask register * d: 0xFFFFFFFF */ #define GM_PCI_ERR_MASK (0x1004 | REG_SZ_8) /* -- 0x1008 RW BIF Configuration * d: 0x00000000 */ #define GM_BIF_CFG (0x1008 | REG_SZ_8) #define GM_BIF_CFG_SLOWCLK 0x01 /* for parity error timing */ #define GM_BIF_CFG_HOST_64 0x02 /* 64-bit host */ #define GM_BIF_CFG_B64D_DIS 0x04 /* no 64-bit wide data cycle */ #define GM_BIF_CFG_M66EN 0x08 /* Read-only: sense if configured for 66MHz */ /* -- 0x100C RW BIF Diagnostic ??? */ #define GM_BIF_DIAG (0x100C | REG_SZ_32) #define GM_BIF_DIAG_BURST_STATE 0x007F0000 #define GM_BIF_DIAG_STATE_MACH 0xFF000000 /* -- 0x1010 RW Software reset * Lower two bits reset TX and RX, both reset whole gmac. They come back * to 0 when reset is complete. * bit 2 force RSTOUT# pin when set (PHY reset) */ #define GM_RESET (0x1010 | REG_SZ_8) #define GM_RESET_TX 0x01 #define GM_RESET_RX 0x02 #define GM_RESET_RSTOUT 0x04 /* PHY reset */ /* * Tx DMA Registers */ /* -- 0x2000 RW Tx Kick * d: 0x00000000 Written by the host with the last tx descriptor number +1 to send */ #define GM_TX_KICK (0x2000 | REG_SZ_16) /* -- 0x2004 RW Tx configuration * d: 0x118010 Controls operation of Tx DMA channel */ #define GM_TX_CONF (0x2004 | REG_SZ_32) #define GM_TX_CONF_DMA_EN 0x00000001 /* Tx DMA enable */ #define GM_TX_CONF_RING_SZ_MASK 0x0000001e /* Tx desc ring size */ #define GM_TX_CONF_RING_SZ_SHIFT 1 /* Tx desc ring size shift */ #define GM_TX_CONF_FIFO_PIO 0x00000020 /* Tx fifo PIO select ??? */ #define GM_TX_CONF_FIFO_THR_MASK 0x001ffc00 /* Tx fifo threshold */ #define GM_TX_CONF_FIFO_THR_SHIFT 10 /* Tx fifo threshold shift */ #define GM_TX_CONF_FIFO_THR_DEFAULT 0x7ff /* Tx fifo threshold default */ #define GM_TX_CONF_PACED_MODE 0x00100000 /* 1: tx_all irq after last descriptor */ /* 0: tx_all irq when tx fifo empty */ #define GM_TX_RING_SZ_32 (0 << 1) #define GM_TX_RING_SZ_64 (1 << 1) #define GM_TX_RING_SZ_128 (2 << 1) #define GM_TX_RING_SZ_256 (3 << 1) #define GM_TX_RING_SZ_512 (4 << 1) #define GM_TX_RING_SZ_1024 (5 << 1) #define GM_TX_RING_SZ_2048 (6 << 1) #define GM_TX_RING_SZ_4086 (7 << 1) #define GM_TX_RING_SZ_8192 (8 << 1) /* -- 0x2008 RW Tx descriptor ring base low * -- 0x200C RW Tx descriptor ring base high * * Base of tx ring, must be 2k aligned */ #define GM_TX_DESC_LO (0x2008 | REG_SZ_32) #define GM_TX_DESC_HI (0x200C | REG_SZ_32) /* -- 0x2100 RW Tx Completion * d: 0x00000000 Written by the gmac with the last tx descriptor number +1 sent */ #define GM_TX_COMP (0x2100 | REG_SZ_16) /* * Rx DMA registers */ /* -- 0x4000 RW Rx configuration * d: 0x1000010 Controls operation of Rx DMA channel */ #define GM_RX_CONF (0x4000 | REG_SZ_32) #define GM_RX_CONF_DMA_EN 0x00000001 /* Rx DMA enable */ #define GM_RX_CONF_RING_SZ_MASK 0x0000001e /* Rx desc ring size */ #define GM_RX_CONF_RING_SZ_SHIFT 1 #define GM_RX_CONF_BATCH_DIS 0x00000020 /* Rx batch disable */ #define GM_RX_CONF_FBYTE_OFF_MASK 0x00001c00 /* First byte offset (10-12) */ #define GM_RX_CONF_FBYTE_OFF_SHIFT 10 #define GM_RX_CONF_CHK_START_MASK 0x000FE000 /* Checksum start offset */ #define GM_RX_CONF_CHK_START_SHIFT 13 #define GM_RX_CONF_DMA_THR_MASK 0x07000000 /* Rx DMA threshold */ #define GM_RX_CONF_DMA_THR_SHIFT 24 /* Rx DMA threshold shift */ #define GM_RX_CONF_DMA_THR_DEFAULT 1 /* Rx DMA threshold default */ #define GM_RX_RING_SZ_32 (0 << 1) #define GM_RX_RING_SZ_64 (1 << 1) #define GM_RX_RING_SZ_128 (2 << 1) #define GM_RX_RING_SZ_256 (3 << 1) #define GM_RX_RING_SZ_512 (4 << 1) #define GM_RX_RING_SZ_1024 (5 << 1) #define GM_RX_RING_SZ_2048 (6 << 1) #define GM_RX_RING_SZ_4086 (7 << 1) #define GM_RX_RING_SZ_8192 (8 << 1) /* -- 0x4004 RW Rx descriptor ring base low * -- 0x4008 RW Rx descriptor ring base high * * Base of rx ring */ #define GM_RX_DESC_LO (0x4004 | REG_SZ_32) #define GM_RX_DESC_HI (0x4008 | REG_SZ_32) /* -- 0x4020 RW Rx pause threshold * d: 0x000000f8 * * Two PAUSE thresholds are used to define when PAUSE flow control frames are * emitted by GEM. The granularity of these thresholds is in 64 byte increments. * XOFF PAUSE frames use the pause_time value pre-programmed in the * Send PAUSE MAC Register. * XON PAUSE frames use a pause_time of 0. */ #define GM_RX_PTH (0x4020 | REG_SZ_32) /* * 0-8: XOFF PAUSE emitted when RX FIFO * occupancy rises above this value (times 64 bytes) */ #define GM_RX_PTH_OFF_MASK 0x000001ff #define GM_RX_PTH_OFF_SHIFT 0 /* * 12-20: XON PAUSE emitted when RX FIFO * occupancy falls below this value (times 64 bytes) */ #define GM_RX_PTH_ON_MASK 0x001ff000 #define GM_RX_PTH_ON_SHIFT 12 #define GM_RX_PTH_UNITS 64 /* -- 0x4100 RW Rx Kick * d: 0x00000000 The last valid RX descriptor is the one right before the value of the * register. Initially set to 0 on reset. RX descriptors must be posted * in multiples of 4. The first descriptor should be cache-line aligned * for best performance. */ #define GM_RX_KICK (0x4100 | REG_SZ_16) /* -- 0x4104 RW Rx Completion * d: 0x00000000 All descriptors upto but excluding the register value are ready to be * processed by the host. */ #define GM_RX_COMP (0x4104 | REG_SZ_16) /* -- 0x4108 RW Rx Blanking * d: 0x00000000 Written by the gmac with the last tx descriptor number +1 sent * * Defines the values used for receive interrupt blanking. * For INTR_TIME field, every count is 2048 PCI clock time. For 66 Mhz, each * count is about 15 ns. */ #define GM_RX_BLANK (0x4108 | REG_SZ_32) /* * 0-8:no.of pkts to be recvd since the last RX_DONE * interrupt, before a new interrupt */ #define GM_RX_BLANK_INTR_PACKETS_MASK 0x000001ff #define GM_RX_BLANK_INTR_PACKETS_SHIFT 0 /* * 12-19 : no. of clocks to be counted since the last * RX_DONE interrupt, before a new interrupt */ #define GM_RX_BLANK_INTR_TIME_MASK 0x000ff000 #define GM_RX_BLANK_INTR_TIME_SHIFT 12 #define GM_RX_BLANK_UNITS 2048 /* -- 0x4120 RO Rx fifo size * * This 11-bit RO register indicates the size, in 64-byte multiples, of the * RX FIFO. Software should use it to properly configure the PAUSE thresholds. * The value read is 0x140, indicating a 20kbyte RX FIFO. * ------------------------------------------------------------------------- */ #define GM_RX_FIFO_SIZE (0x4120 | REG_SZ_16) #define GM_RZ_FIFO_SIZE_UNITS 64 /* * MAC regisers */ /* -- 0x6000 MAC Tx reset control */ #define GM_MAC_TX_RESET (0x6000 | REG_SZ_8) #define GM_MAC_TX_RESET_NOW 0x01 /* -- 0x6004 MAC Rx reset control */ #define GM_MAC_RX_RESET (0x6004 | REG_SZ_8) #define GM_MAC_RX_RESET_NOW 0x01 /* -- 0x6008 Send Pause command register */ #define GM_MAC_SND_PAUSE (0x6008 | REG_SZ_32) #define GM_MAC_SND_PAUSE_TIME_MASK 0x0000ffff #define GM_MAC_SND_PAUSE_TIME_SHIFT 0 #define GM_MAC_SND_PAUSE_NOW 0x00010000 #define GM_MAC_SND_PAUSE_DEFAULT 0x00001bf0 /* -- 0x6010 MAC transmit status */ #define GM_MAC_TX_STATUS (0x6010 | REG_SZ_16) #define GM_MAC_TX_STAT_SENT 0x0001 #define GM_MAC_TX_STAT_UNDERRUN 0x0002 #define GM_MAC_TX_STAT_MAX_PKT_ERR 0x0004 #define GM_MAC_TX_STAT_NORM_COLL_OVF 0x0008 #define GM_MAC_TX_STAT_EXCS_COLL_OVF 0x0010 #define GM_MAC_TX_STAT_LATE_COLL_OVF 0x0020 #define GM_MAC_TX_STAT_FIRS_COLL_OVF 0x0040 #define GM_MAC_TX_STAT_DEFER_TIMER_OVF 0x0080 #define GM_MAC_TX_STAT_PEAK_ATTMP_OVF 0x0100 /* -- 0x6014 MAC receive status */ #define GM_MAC_RX_STATUS (0x6014 | REG_SZ_16) #define GM_MAC_RX_STAT_RECEIVED 0x0001 #define GM_MAC_RX_STAT_FIFO_OVF 0x0002 #define GM_MAC_RX_STAT_FRAME_CTR_OVF 0x0004 #define GM_MAC_RX_STAT_ALIGN_ERR_OVF 0x0008 #define GM_MAC_RX_STAT_CRC_ERR_OVF 0x0010 #define GM_MAC_RX_STAT_LEN_ERR_OVF 0x0020 #define GM_MAC_RX_STAT_CODE_ERR_OVF 0x0040 /* -- 0x6018 MAC control & status */ #define GM_MAC_CTRLSTAT (0x6018 | REG_SZ_32) #define GM_MAC_CTRLSTAT_PAUSE_RCVD 0x00000001 #define GM_MAC_CTRLSTAT_PAUSE_STATE 0x00000002 #define GM_MAC_CTRLSTAT_PAUSE_NOT 0x00000004 #define GM_MAC_CTRLSTAT_PAUSE_TIM_MASK 0xffff0000 #define GM_MAC_CTRLSTAT_PAUSE_TIM_SHIFT 16 /* -- 0x6020 MAC Tx mask * Same bits as MAC Tx status */ #define GM_MAC_TX_MASK (0x6020 | REG_SZ_16) /* -- 0x6024 MAC Rx mask * Same bits as MAC Rx status */ #define GM_MAC_RX_MASK (0x6024 | REG_SZ_16) /* -- 0x6028 MAC Control/Status mask * Same bits as MAC control/status low order byte */ #define GM_MAC_CTRLSTAT_MASK (0x6024 | REG_SZ_8) /* -- 0x6030 MAC Tx configuration */ #define GM_MAC_TX_CONFIG (0x6030 | REG_SZ_16) #define GM_MAC_TX_CONF_ENABLE 0x0001 #define GM_MAC_TX_CONF_IGNORE_CARRIER 0x0002 #define GM_MAC_TX_CONF_IGNORE_COLL 0x0004 #define GM_MAC_TX_CONF_ENABLE_IPG0 0x0008 #define GM_MAC_TX_CONF_DONT_GIVEUP 0x0010 #define GM_MAC_TX_CONF_DONT_GIVEUP_NLMT 0x0020 #define GM_MAC_TX_CONF_NO_BACKOFF 0x0040 #define GM_MAC_TX_CONF_SLOWDOWN 0x0080 #define GM_MAC_TX_CONF_NO_FCS 0x0100 #define GM_MAC_TX_CONF_CARRIER_EXT 0x0200 /* -- 0x6034 MAC Rx configuration */ #define GM_MAC_RX_CONFIG (0x6034 | REG_SZ_16) #define GM_MAC_RX_CONF_ENABLE 0x0001 #define GM_MAC_RX_CONF_STRIP_PAD 0x0002 #define GM_MAC_RX_CONF_STIP_FCS 0x0004 #define GM_MAC_RX_CONF_RX_ALL 0x0008 #define GM_MAC_RX_CONF_RX_ALL_MULTI 0x0010 #define GM_MAC_RX_CONF_HASH_ENABLE 0x0020 #define GM_MAC_RX_CONF_ADDR_FLTR_ENABLE 0x0040 #define GM_MAC_RX_CONF_PASS_ERROR_FRAM 0x0080 #define GM_MAC_RX_CONF_CARRIER_EXT 0x0100 /* -- 0x6038 MAC control configuration */ #define GM_MAC_CTRL_CONFIG (0x6038 | REG_SZ_8) #define GM_MAC_CTRL_CONF_SND_PAUSE_EN 0x01 #define GM_MAC_CTRL_CONF_RCV_PAUSE_EN 0x02 #define GM_MAC_CTRL_CONF_PASS_CTRL_FRAM 0x04 /* -- 0x603c MAC XIF configuration */ #define GM_MAC_XIF_CONFIG (0x603c | REG_SZ_8) #define GM_MAC_XIF_CONF_TX_MII_OUT_EN 0x01 #define GM_MAC_XIF_CONF_MII_INT_LOOP 0x02 #define GM_MAC_XIF_CONF_DISABLE_ECHO 0x04 #define GM_MAC_XIF_CONF_GMII_MODE 0x08 #define GM_MAC_XIF_CONF_MII_BUFFER_EN 0x10 #define GM_MAC_XIF_CONF_LINK_LED 0x20 #define GM_MAC_XIF_CONF_FULL_DPLX_LED 0x40 /* -- 0x6040 MAC inter-packet GAP 0 */ #define GM_MAC_INTR_PKT_GAP0 (0x6040 | REG_SZ_8) #define GM_MAC_INTR_PKT_GAP0_DEFAULT 0x00 /* -- 0x6044 MAC inter-packet GAP 1 */ #define GM_MAC_INTR_PKT_GAP1 (0x6044 | REG_SZ_8) #define GM_MAC_INTR_PKT_GAP1_DEFAULT 0x08 /* -- 0x6048 MAC inter-packet GAP 2 */ #define GM_MAC_INTR_PKT_GAP2 (0x6048 | REG_SZ_8) #define GM_MAC_INTR_PKT_GAP2_DEFAULT 0x04 /* -- 604c MAC slot time */ #define GM_MAC_SLOT_TIME (0x604C | REG_SZ_16) #define GM_MAC_SLOT_TIME_DEFAULT 0x0040 /* -- 6050 MAC minimum frame size */ #define GM_MAC_MIN_FRAME_SIZE (0x6050 | REG_SZ_16) #define GM_MAC_MIN_FRAME_SIZE_DEFAULT 0x0040 /* -- 6054 MAC maximum frame size */ #define GM_MAC_MAX_FRAME_SIZE (0x6054 | REG_SZ_16) #define GM_MAC_MAX_FRAME_SIZE_DEFAULT 0x05ee #define GM_MAC_MAX_FRAME_SIZE_ALIGN 0x5f0 /* -- 6058 MAC preamble length */ #define GM_MAC_PREAMBLE_LEN (0x6058 | REG_SZ_16) #define GM_MAC_PREAMBLE_LEN_DEFAULT 0x0007 /* -- 605c MAC jam size */ #define GM_MAC_JAM_SIZE (0x605c | REG_SZ_8) #define GM_MAC_JAM_SIZE_DEFAULT 0x04 /* -- 6060 MAC attempt limit */ #define GM_MAC_ATTEMPT_LIMIT (0x6060 | REG_SZ_8) #define GM_MAC_ATTEMPT_LIMIT_DEFAULT 0x10 /* -- 6064 MAC control type */ #define GM_MAC_CONTROL_TYPE (0x6064 | REG_SZ_16) #define GM_MAC_CONTROL_TYPE_DEFAULT 0x8808 /* -- 6080 MAC address 15..0 * -- 6084 MAC address 16..31 * -- 6088 MAC address 32..47 */ #define GM_MAC_ADDR_NORMAL0 (0x6080 | REG_SZ_16) #define GM_MAC_ADDR_NORMAL1 (0x6084 | REG_SZ_16) #define GM_MAC_ADDR_NORMAL2 (0x6088 | REG_SZ_16) /* -- 608c MAC alternate address 15..0 * -- 6090 MAC alternate address 16..31 * -- 6094 MAC alternate address 32..47 */ #define GM_MAC_ADDR_ALT0 (0x608c | REG_SZ_16) #define GM_MAC_ADDR_ALT1 (0x6090 | REG_SZ_16) #define GM_MAC_ADDR_ALT2 (0x6094 | REG_SZ_16) /* -- 6098 MAC control address 15..0 * -- 609c MAC control address 16..31 * -- 60a0 MAC control address 32..47 */ #define GM_MAC_ADDR_CTRL0 (0x6098 | REG_SZ_16) #define GM_MAC_ADDR_CTRL1 (0x609c | REG_SZ_16) #define GM_MAC_ADDR_CTRL2 (0x60a0 | REG_SZ_16) /* -- 60a4 MAC address filter (0_0) * -- 60a8 MAC address filter (0_1) * -- 60ac MAC address filter (0_2) */ #define GM_MAC_ADDR_FILTER0 (0x60a4 | REG_SZ_16) #define GM_MAC_ADDR_FILTER1 (0x60a8 | REG_SZ_16) #define GM_MAC_ADDR_FILTER2 (0x60ac | REG_SZ_16) /* -- 60b0 MAC address filter mask 1,2 */ #define GM_MAC_ADDR_FILTER_MASK1_2 (0x60b0 | REG_SZ_8) /* -- 60b4 MAC address filter mask 0 */ #define GM_MAC_ADDR_FILTER_MASK0 (0x60b4 | REG_SZ_16) /* -- [60c0 .. 60fc] MAC hash table */ #define GM_MAC_ADDR_FILTER_HASH0 (0x60c0 | REG_SZ_16) /* -- 6100 MAC normal collision counter */ #define GM_MAC_COLLISION_CTR (0x6100 | REG_SZ_16) /* -- 6104 MAC 1st successful collision counter */ #define GM_MAC_FIRST_COLLISION_CTR (0x6104 | REG_SZ_16) /* -- 6108 MAC excess collision counter */ #define GM_MAC_EXCS_COLLISION_CTR (0x6108 | REG_SZ_16) /* -- 610c MAC late collision counter */ #define GM_MAC_LATE_COLLISION_CTR (0x610c | REG_SZ_16) /* -- 6110 MAC defer timer counter */ #define GM_MAC_DEFER_TIMER_COUNTER (0x6110 | REG_SZ_16) /* -- 6114 MAC peak attempts */ #define GM_MAC_PEAK_ATTEMPTS (0x6114 | REG_SZ_16) /* -- 6118 MAC Rx frame counter */ #define GM_MAC_RX_FRAME_CTR (0x6118 | REG_SZ_16) /* -- 611c MAC Rx length error counter */ #define GM_MAC_RX_LEN_ERR_CTR (0x611c | REG_SZ_16) /* -- 6120 MAC Rx alignment error counter */ #define GM_MAC_RX_ALIGN_ERR_CTR (0x6120 | REG_SZ_16) /* -- 6124 MAC Rx CRC error counter */ #define GM_MAC_RX_CRC_ERR_CTR (0x6124 | REG_SZ_16) /* -- 6128 MAC Rx code violation error counter */ #define GM_MAC_RX_CODE_VIOLATION_CTR (0x6128 | REG_SZ_16) /* -- 6130 MAC random number seed */ #define GM_MAC_RANDOM_SEED (0x6130 | REG_SZ_16) /* -- 6134 MAC state machine */ #define GM_MAC_STATE_MACHINE (0x6134 | REG_SZ_8) /* * MIF registers */ /* -- 0x6200 RW MIF bit bang clock */ #define GM_MIF_BB_CLOCK (0x6200 | REG_SZ_8) /* -- 0x6204 RW MIF bit bang data */ #define GM_MIF_BB_DATA (0x6204 | REG_SZ_8) /* -- 0x6208 RW MIF bit bang output enable */ #define GM_MIF_BB_OUT_ENABLE (0x6208 | REG_SZ_8) /* -- 0x620c RW MIF frame control & data */ #define GM_MIF_FRAME_CTL_DATA (0x620c | REG_SZ_32) #define GM_MIF_FRAME_START_MASK 0xc0000000 #define GM_MIF_FRAME_START_SHIFT 30 #define GM_MIF_FRAME_OPCODE_MASK 0x30000000 #define GM_MIF_FRAME_OPCODE_SHIFT 28 #define GM_MIF_FRAME_PHY_ADDR_MASK 0x0f800000 #define GM_MIF_FRAME_PHY_ADDR_SHIFT 23 #define GM_MIF_FRAME_REG_ADDR_MASK 0x007c0000 #define GM_MIF_FRAME_REG_ADDR_SHIFT 18 #define GM_MIF_FRAME_TURNAROUND_HI 0x00020000 #define GM_MIF_FRAME_TURNAROUND_LO 0x00010000 #define GM_MIF_FRAME_DATA_MASK 0x0000ffff #define GM_MIF_FRAME_DATA_SHIFT 0 /* -- 0x6210 RW MIF config reg */ #define GM_MIF_CFG (0x6210 | REG_SZ_16) #define GM_MIF_CFGPS 0x00000001 /* PHY Select */ #define GM_MIF_CFGPE 0x00000002 /* Poll Enable */ #define GM_MIF_CFGBB 0x00000004 /* Bit Bang Enable */ #define GM_MIF_CFGPR_MASK 0x000000f8 /* Poll Register address */ #define GM_MIF_CFGPR_SHIFT 3 #define GM_MIF_CFGM0 0x00000100 /* MDIO_0 Data / MDIO_0 attached */ #define GM_MIF_CFGM1 0x00000200 /* MDIO_1 Data / MDIO_1 attached */ #define GM_MIF_CFGPD_MASK 0x00007c00 /* Poll Device PHY address */ #define GM_MIF_CFGPD_SHIFT 10 #define GM_MIF_POLL_DELAY 200 #define GM_INTERNAL_PHYAD 1 /* PHY address for int. transceiver */ #define GM_EXTERNAL_PHYAD 0 /* PHY address for ext. transceiver */ /* -- 0x6214 RW MIF interrupt mask reg * same as basic/status Register */ #define GM_MIF_IRQ_MASK (0x6214 | REG_SZ_16) /* -- 0x6218 RW MIF basic/status reg * The Basic portion of this register indicates the last * value of the register read indicated in the POLL REG field * of the Configuration Register. * The Status portion indicates bit(s) that have changed. * The MIF Mask register is corresponding to this register in * terms of the bit(s) that need to be masked for generating * interrupt on the MIF Interrupt Bit of the Global Status Rgister. */ #define GM_MIF_STATUS (0x6218 | REG_SZ_32) #define GM_MIF_STATUS_MASK 0x0000ffff /* 0-15 : Status */ #define GM_MIF_BASIC_MASK 0xffff0000 /* 16-31 : Basic register */ /* * PCS link registers */ /* -- 0x9000 RW PCS mii control reg */ #define GM_PCS_CONTROL (0x9000 | REG_SZ_16) /* -- 0x9004 RW PCS mii status reg */ #define GM_PCS_STATUS (0x9004 | REG_SZ_16) /* -- 0x9008 RW PCS mii advertisement */ #define GM_PCS_ADVERTISEMENT (0x9008 | REG_SZ_16) /* -- 0x900c RW PCS mii LP ability */ #define GM_PCS_ABILITY (0x900c | REG_SZ_16) /* -- 0x9010 RW PCS config */ #define GM_PCS_CONFIG (0x9010 | REG_SZ_8) /* -- 0x9014 RW PCS state machine */ #define GM_PCS_STATE_MACHINE (0x9014 | REG_SZ_32) /* -- 0x9018 RW PCS interrupt status */ #define GM_PCS_IRQ_STATUS (0x9018 | REG_SZ_8) /* -- 0x9050 RW PCS datapath mode */ #define GM_PCS_DATAPATH_MODE (0x9050 | REG_SZ_8) #define GM_PCS_DATAPATH_INTERNAL 0x01 /* Internal serial link */ #define GM_PCS_DATAPATH_SERDES 0x02 /* 10-bit Serdes interface */ #define GM_PCS_DATAPATH_MII 0x04 /* Select mii/gmii mode */ #define GM_PCS_DATAPATH_GMII_OUT 0x08 /* serial mode only, copy data to gmii */ /* -- 0x9054 RW PCS serdes control */ #define GM_PCS_SERDES_CTRL (0x9054 | REG_SZ_8) /* -- 0x9058 RW PCS serdes output select */ #define GM_PCS_SERDES_SELECT (0x9058 | REG_SZ_8) /* -- 0x905c RW PCS serdes state */ #define GM_PCS_SERDES_STATE (0x905c | REG_SZ_8) /* * PHY registers */ /* * Standard PHY registers (from de4x5.h) */ #define MII_CR 0x00 /* MII Management Control Register */ #define MII_SR 0x01 /* MII Management Status Register */ #define MII_ID0 0x02 /* PHY Identifier Register 0 */ #define MII_ID1 0x03 /* PHY Identifier Register 1 */ #define MII_ANA 0x04 /* Auto Negotiation Advertisement */ #define MII_ANLPA 0x05 /* Auto Negotiation Link Partner Ability */ #define MII_ANE 0x06 /* Auto Negotiation Expansion */ #define MII_ANP 0x07 /* Auto Negotiation Next Page TX */ /* ** MII Management Control Register */ #define MII_CR_RST 0x8000 /* RESET the PHY chip */ #define MII_CR_LPBK 0x4000 /* Loopback enable */ #define MII_CR_SPD 0x2000 /* 0: 10Mb/s; 1: 100Mb/s */ #define MII_CR_10 0x0000 /* Set 10Mb/s */ #define MII_CR_100 0x2000 /* Set 100Mb/s */ #define MII_CR_ASSE 0x1000 /* Auto Speed Select Enable */ #define MII_CR_PD 0x0800 /* Power Down */ #define MII_CR_ISOL 0x0400 /* Isolate Mode */ #define MII_CR_RAN 0x0200 /* Restart Auto Negotiation */ #define MII_CR_FDM 0x0100 /* Full Duplex Mode */ #define MII_CR_CTE 0x0080 /* Collision Test Enable */ #define MII_CR_SPEEDSEL2 0x0040 /* Speed selection 2 on BCM */ /* ** MII Management Status Register */ #define MII_SR_T4C 0x8000 /* 100BASE-T4 capable */ #define MII_SR_TXFD 0x4000 /* 100BASE-TX Full Duplex capable */ #define MII_SR_TXHD 0x2000 /* 100BASE-TX Half Duplex capable */ #define MII_SR_TFD 0x1000 /* 10BASE-T Full Duplex capable */ #define MII_SR_THD 0x0800 /* 10BASE-T Half Duplex capable */ #define MII_SR_ASSC 0x0020 /* Auto Speed Selection Complete*/ #define MII_SR_RFD 0x0010 /* Remote Fault Detected */ #define MII_SR_ANC 0x0008 /* Auto Negotiation capable */ #define MII_SR_LKS 0x0004 /* Link Status */ #define MII_SR_JABD 0x0002 /* Jabber Detect */ #define MII_SR_XC 0x0001 /* Extended Capabilities */ /* ** MII Management Auto Negotiation Advertisement Register */ #define MII_ANA_TAF 0x03e0 /* Technology Ability Field */ #define MII_ANA_T4AM 0x0200 /* T4 Technology Ability Mask */ #define MII_ANA_TXAM 0x0180 /* TX Technology Ability Mask */ #define MII_ANA_FDAM 0x0140 /* Full Duplex Technology Ability Mask */ #define MII_ANA_HDAM 0x02a0 /* Half Duplex Technology Ability Mask */ #define MII_ANA_100M 0x0380 /* 100Mb Technology Ability Mask */ #define MII_ANA_10M 0x0060 /* 10Mb Technology Ability Mask */ #define MII_ANA_CSMA 0x0001 /* CSMA-CD Capable */ /* ** MII Management Auto Negotiation Remote End Register */ #define MII_ANLPA_NP 0x8000 /* Next Page (Enable) */ #define MII_ANLPA_ACK 0x4000 /* Remote Acknowledge */ #define MII_ANLPA_RF 0x2000 /* Remote Fault */ #define MII_ANLPA_TAF 0x03e0 /* Technology Ability Field */ #define MII_ANLPA_T4AM 0x0200 /* T4 Technology Ability Mask */ #define MII_ANLPA_TXAM 0x0180 /* TX Technology Ability Mask */ #define MII_ANLPA_FDAM 0x0140 /* Full Duplex Technology Ability Mask */ #define MII_ANLPA_HDAM 0x02a0 /* Half Duplex Technology Ability Mask */ #define MII_ANLPA_100M 0x0380 /* 100Mb Technology Ability Mask */ #define MII_ANLPA_10M 0x0060 /* 10Mb Technology Ability Mask */ #define MII_ANLPA_CSMA 0x0001 /* CSMA-CD Capable */ #define MII_ANLPA_PAUS 0x0400 /* Generic PHYs * * These GENERIC values assumes that the PHY devices follow 802.3u and * allow parallel detection to set the link partner ability register. * Detection of 100Base-TX [H/F Duplex] and 100Base-T4 is supported. */ /* * Model-specific PHY registers * * Note: Only the BCM5201 is described here for now. I'll add the 5400 once * I see a machine using it in real world. */ /* Supported PHYs (phy_type field ) */ #define PHY_B5400 0x5400 #define PHY_B5401 0x5401 #define PHY_B5411 0x5411 #define PHY_B5201 0x5201 #define PHY_B5221 0x5221 #define PHY_LXT971 0x0971 #define PHY_UNKNOWN 0 /* Identification (for multi-PHY) */ #define MII_BCM5201_OUI 0x001018 #define MII_BCM5201_MODEL 0x21 #define MII_BCM5201_REV 0x01 #define MII_BCM5201_ID ((MII_BCM5201_OUI << 10) | (MII_BCM5201_MODEL << 4)) #define MII_BCM5201_MASK 0xfffffff0 #define MII_BCM5221_OUI 0x001018 #define MII_BCM5221_MODEL 0x1e #define MII_BCM5221_REV 0x00 #define MII_BCM5221_ID ((MII_BCM5221_OUI << 10) | (MII_BCM5221_MODEL << 4)) #define MII_BCM5221_MASK 0xfffffff0 #define MII_BCM5400_OUI 0x000818 #define MII_BCM5400_MODEL 0x04 #define MII_BCM5400_REV 0x01 #define MII_BCM5400_ID ((MII_BCM5400_OUI << 10) | (MII_BCM5400_MODEL << 4)) #define MII_BCM5400_MASK 0xfffffff0 #define MII_BCM5401_OUI 0x000818 #define MII_BCM5401_MODEL 0x05 #define MII_BCM5401_REV 0x01 #define MII_BCM5401_ID ((MII_BCM5401_OUI << 10) | (MII_BCM5401_MODEL << 4)) #define MII_BCM5401_MASK 0xfffffff0 #define MII_BCM5411_OUI 0x000818 #define MII_BCM5411_MODEL 0x07 #define MII_BCM5411_REV 0x01 #define MII_BCM5411_ID ((MII_BCM5411_OUI << 10) | (MII_BCM5411_MODEL << 4)) #define MII_BCM5411_MASK 0xfffffff0 #define MII_LXT971_OUI 0x0004de #define MII_LXT971_MODEL 0x0e #define MII_LXT971_REV 0x00 #define MII_LXT971_ID ((MII_LXT971_OUI << 10) | (MII_LXT971_MODEL << 4)) #define MII_LXT971_MASK 0xfffffff0 /* BCM5201 AUX STATUS register */ #define MII_BCM5201_AUXCTLSTATUS 0x18 #define MII_BCM5201_AUXCTLSTATUS_DUPLEX 0x0001 #define MII_BCM5201_AUXCTLSTATUS_SPEED 0x0002 /* MII BCM5201 MULTIPHY interrupt register */ #define MII_BCM5201_INTERRUPT 0x1A #define MII_BCM5201_INTERRUPT_INTENABLE 0x4000 #define MII_BCM5201_AUXMODE2 0x1B #define MII_BCM5201_AUXMODE2_LOWPOWER 0x0008 #define MII_BCM5201_MULTIPHY 0x1E /* MII BCM5201 MULTIPHY register bits */ #define MII_BCM5201_MULTIPHY_SERIALMODE 0x0002 #define MII_BCM5201_MULTIPHY_SUPERISOLATE 0x0008 /* MII BCM5400 1000-BASET Control register */ #define MII_BCM5400_GB_CONTROL 0x09 #define MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP 0x0200 /* MII BCM5400 AUXCONTROL register */ #define MII_BCM5400_AUXCONTROL 0x18 #define MII_BCM5400_AUXCONTROL_PWR10BASET 0x0004 /* MII BCM5400 AUXSTATUS register */ #define MII_BCM5400_AUXSTATUS 0x19 #define MII_BCM5400_AUXSTATUS_LINKMODE_MASK 0x0700 #define MII_BCM5400_AUXSTATUS_LINKMODE_SHIFT 8 /* MII LXT971 STATUS2 register */ #define MII_LXT971_STATUS2 0x11 #define MII_LXT971_STATUS2_SPEED 0x4000 #define MII_LXT971_STATUS2_LINK 0x0400 #define MII_LXT971_STATUS2_FULLDUPLEX 0x0200 #define MII_LXT971_STATUS2_AUTONEG_COMPLETE 0x0080 /* * DMA descriptors */ /* * Descriptor counts and buffer sizes */ #define NTX 64 /* must be power of 2 */ #define NTX_CONF GM_TX_RING_SZ_64 #define NRX 64 /* must be power of 2 */ #define NRX_CONF GM_RX_RING_SZ_64 #define RX_COPY_THRESHOLD 256 #define GMAC_BUFFER_ALIGN 32 /* Align on a cache line */ #define RX_BUF_ALLOC_SIZE (ETH_FRAME_LEN + GMAC_BUFFER_ALIGN + 2) #define RX_OFFSET 2 /* * Definitions of Rx and Tx descriptors */ struct gmac_dma_desc { unsigned int size; /* data size and OWN bit */ unsigned int flags; /* flags */ unsigned int lo_addr; /* phys addr, low 32 bits */ unsigned int hi_addr; }; /* * Rx bits */ /* Bits in size */ #define RX_SZ_OWN 0x80000000 /* 1 = owned by chip */ #define RX_SZ_MASK 0x7FFF0000 #define RX_SZ_SHIFT 16 #define RX_SZ_CKSUM_MASK 0x0000FFFF /* Bits in flags */ #define RX_FL_CRC_ERROR 0x40000000 #define RX_FL_ALT_ADDR 0x20000000 /* Packet rcv. from alt MAC address */ /* * Tx bits */ /* Bits in size */ #define TX_SZ_MASK 0x00007FFF #define TX_SZ_CRC_MASK 0x00FF8000 #define TX_SZ_CRC_STUFF 0x1F000000 #define TX_SZ_CRC_ENABLE 0x20000000 #define TX_SZ_EOP 0x40000000 #define TX_SZ_SOP 0x80000000 /* Bits in flags */ #define TX_FL_INTERRUPT 0x00000001 #define TX_FL_NO_CRC 0x00000002 /* * Other stuffs */ struct gmac { volatile unsigned int *regs; /* hardware registers, virtual addr */ struct net_device *dev; struct device_node *of_node; unsigned long tx_desc_page; /* page for DMA descriptors */ unsigned long rx_desc_page; /* page for DMA descriptors */ volatile struct gmac_dma_desc *rxring; struct sk_buff *rx_buff[NRX]; int next_rx; volatile struct gmac_dma_desc *txring; struct sk_buff *tx_buff[NTX]; int next_tx; int tx_gone; int phy_addr; unsigned int phy_id; int phy_type; int phy_status; /* Cached PHY status */ int full_duplex; /* Current set to full duplex */ int gigabit; /* Current set to 1000BT */ struct net_device_stats stats; u8 pci_bus; u8 pci_devfn; spinlock_t lock; int opened; int sleeping; struct net_device *next_gmac; }; /* Register access macros. We hope the preprocessor will be smart enough * to optimize them into one single access instruction */ #define GM_OUT(reg, v) (((reg) & REG_SZ_32) ? out_le32(gm->regs + \ (((reg) & REG_MASK)>>2), (v)) \ : (((reg) & REG_SZ_16) ? out_le16((volatile u16 *) \ (gm->regs + (((reg) & REG_MASK)>>2)), (v)) \ : out_8((volatile u8 *)(gm->regs + \ (((reg) & REG_MASK)>>2)), (v)))) #define GM_IN(reg) (((reg) & REG_SZ_32) ? in_le32(gm->regs + \ (((reg) & REG_MASK)>>2)) \ : (((reg) & REG_SZ_16) ? in_le16((volatile u16 *) \ (gm->regs + (((reg) & REG_MASK)>>2))) \ : in_8((volatile u8 *)(gm->regs + \ (((reg) & REG_MASK)>>2))))) #define GM_BIS(r, v) GM_OUT((r), GM_IN(r) | (v)) #define GM_BIC(r, v) GM_OUT((r), GM_IN(r) & ~(v)) /* Wrapper to alloc_skb to test various alignements */ #define GMAC_ALIGNED_RX_SKB_ADDR(addr) \ ((((unsigned long)(addr) + GMAC_BUFFER_ALIGN - 1) & \ ~(GMAC_BUFFER_ALIGN - 1)) - (unsigned long)(addr)) static inline struct sk_buff * gmac_alloc_skb(unsigned int length, int gfp_flags) { struct sk_buff *skb; skb = alloc_skb(length + GMAC_BUFFER_ALIGN, gfp_flags); if(skb) { int offset = GMAC_ALIGNED_RX_SKB_ADDR(skb->data); if(offset) skb_reserve(skb, offset); } return skb; }