diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bgmac.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.h | 453 |
1 files changed, 453 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h new file mode 100644 index 00000000000..4ede614c81f --- /dev/null +++ b/drivers/net/ethernet/broadcom/bgmac.h @@ -0,0 +1,453 @@ +#ifndef _BGMAC_H +#define _BGMAC_H + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#define bgmac_err(bgmac, fmt, ...) \ + dev_err(&(bgmac)->core->dev, fmt, ##__VA_ARGS__) +#define bgmac_warn(bgmac, fmt, ...) \ + dev_warn(&(bgmac)->core->dev, fmt, ##__VA_ARGS__) +#define bgmac_info(bgmac, fmt, ...) \ + dev_info(&(bgmac)->core->dev, fmt, ##__VA_ARGS__) +#define bgmac_dbg(bgmac, fmt, ...) \ + dev_dbg(&(bgmac)->core->dev, fmt, ##__VA_ARGS__) + +#include <linux/bcma/bcma.h> +#include <linux/netdevice.h> + +#define BGMAC_DEV_CTL 0x000 +#define BGMAC_DC_TSM 0x00000002 +#define BGMAC_DC_CFCO 0x00000004 +#define BGMAC_DC_RLSS 0x00000008 +#define BGMAC_DC_MROR 0x00000010 +#define BGMAC_DC_FCM_MASK 0x00000060 +#define BGMAC_DC_FCM_SHIFT 5 +#define BGMAC_DC_NAE 0x00000080 +#define BGMAC_DC_TF 0x00000100 +#define BGMAC_DC_RDS_MASK 0x00030000 +#define BGMAC_DC_RDS_SHIFT 16 +#define BGMAC_DC_TDS_MASK 0x000c0000 +#define BGMAC_DC_TDS_SHIFT 18 +#define BGMAC_DEV_STATUS 0x004 /* Configuration of the interface */ +#define BGMAC_DS_RBF 0x00000001 +#define BGMAC_DS_RDF 0x00000002 +#define BGMAC_DS_RIF 0x00000004 +#define BGMAC_DS_TBF 0x00000008 +#define BGMAC_DS_TDF 0x00000010 +#define BGMAC_DS_TIF 0x00000020 +#define BGMAC_DS_PO 0x00000040 +#define BGMAC_DS_MM_MASK 0x00000300 /* Mode of the interface */ +#define BGMAC_DS_MM_SHIFT 8 +#define BGMAC_BIST_STATUS 0x00c +#define BGMAC_INT_STATUS 0x020 /* Interrupt status */ +#define BGMAC_IS_MRO 0x00000001 +#define BGMAC_IS_MTO 0x00000002 +#define BGMAC_IS_TFD 0x00000004 +#define BGMAC_IS_LS 0x00000008 +#define BGMAC_IS_MDIO 0x00000010 +#define BGMAC_IS_MR 0x00000020 +#define BGMAC_IS_MT 0x00000040 +#define BGMAC_IS_TO 0x00000080 +#define BGMAC_IS_DESC_ERR 0x00000400 /* Descriptor error */ +#define BGMAC_IS_DATA_ERR 0x00000800 /* Data error */ +#define BGMAC_IS_DESC_PROT_ERR 0x00001000 /* Descriptor protocol error */ +#define BGMAC_IS_RX_DESC_UNDERF 0x00002000 /* Receive descriptor underflow */ +#define BGMAC_IS_RX_F_OVERF 0x00004000 /* Receive FIFO overflow */ +#define BGMAC_IS_TX_F_UNDERF 0x00008000 /* Transmit FIFO underflow */ +#define BGMAC_IS_RX 0x00010000 /* Interrupt for RX queue 0 */ +#define BGMAC_IS_TX0 0x01000000 /* Interrupt for TX queue 0 */ +#define BGMAC_IS_TX1 0x02000000 /* Interrupt for TX queue 1 */ +#define BGMAC_IS_TX2 0x04000000 /* Interrupt for TX queue 2 */ +#define BGMAC_IS_TX3 0x08000000 /* Interrupt for TX queue 3 */ +#define BGMAC_IS_TX_MASK 0x0f000000 +#define BGMAC_IS_INTMASK 0x0f01fcff +#define BGMAC_IS_ERRMASK 0x0000fc00 +#define BGMAC_INT_MASK 0x024 /* Interrupt mask */ +#define BGMAC_GP_TIMER 0x028 +#define BGMAC_INT_RECV_LAZY 0x100 +#define BGMAC_IRL_TO_MASK 0x00ffffff +#define BGMAC_IRL_FC_MASK 0xff000000 +#define BGMAC_IRL_FC_SHIFT 24 /* Shift the number of interrupts triggered per received frame */ +#define BGMAC_FLOW_CTL_THRESH 0x104 /* Flow control thresholds */ +#define BGMAC_WRRTHRESH 0x108 +#define BGMAC_GMAC_IDLE_CNT_THRESH 0x10c +#define BGMAC_PHY_ACCESS 0x180 /* PHY access address */ +#define BGMAC_PA_DATA_MASK 0x0000ffff +#define BGMAC_PA_ADDR_MASK 0x001f0000 +#define BGMAC_PA_ADDR_SHIFT 16 +#define BGMAC_PA_REG_MASK 0x1f000000 +#define BGMAC_PA_REG_SHIFT 24 +#define BGMAC_PA_WRITE 0x20000000 +#define BGMAC_PA_START 0x40000000 +#define BGMAC_PHY_CNTL 0x188 /* PHY control address */ +#define BGMAC_PC_EPA_MASK 0x0000001f +#define BGMAC_PC_MCT_MASK 0x007f0000 +#define BGMAC_PC_MCT_SHIFT 16 +#define BGMAC_PC_MTE 0x00800000 +#define BGMAC_TXQ_CTL 0x18c +#define BGMAC_TXQ_CTL_DBT_MASK 0x00000fff +#define BGMAC_TXQ_CTL_DBT_SHIFT 0 +#define BGMAC_RXQ_CTL 0x190 +#define BGMAC_RXQ_CTL_DBT_MASK 0x00000fff +#define BGMAC_RXQ_CTL_DBT_SHIFT 0 +#define BGMAC_RXQ_CTL_PTE 0x00001000 +#define BGMAC_RXQ_CTL_MDP_MASK 0x3f000000 +#define BGMAC_RXQ_CTL_MDP_SHIFT 24 +#define BGMAC_GPIO_SELECT 0x194 +#define BGMAC_GPIO_OUTPUT_EN 0x198 +/* For 0x1e0 see BCMA_CLKCTLST */ +#define BGMAC_HW_WAR 0x1e4 +#define BGMAC_PWR_CTL 0x1e8 +#define BGMAC_DMA_BASE0 0x200 /* Tx and Rx controller */ +#define BGMAC_DMA_BASE1 0x240 /* Tx controller only */ +#define BGMAC_DMA_BASE2 0x280 /* Tx controller only */ +#define BGMAC_DMA_BASE3 0x2C0 /* Tx controller only */ +#define BGMAC_TX_GOOD_OCTETS 0x300 +#define BGMAC_TX_GOOD_OCTETS_HIGH 0x304 +#define BGMAC_TX_GOOD_PKTS 0x308 +#define BGMAC_TX_OCTETS 0x30c +#define BGMAC_TX_OCTETS_HIGH 0x310 +#define BGMAC_TX_PKTS 0x314 +#define BGMAC_TX_BROADCAST_PKTS 0x318 +#define BGMAC_TX_MULTICAST_PKTS 0x31c +#define BGMAC_TX_LEN_64 0x320 +#define BGMAC_TX_LEN_65_TO_127 0x324 +#define BGMAC_TX_LEN_128_TO_255 0x328 +#define BGMAC_TX_LEN_256_TO_511 0x32c +#define BGMAC_TX_LEN_512_TO_1023 0x330 +#define BGMAC_TX_LEN_1024_TO_1522 0x334 +#define BGMAC_TX_LEN_1523_TO_2047 0x338 +#define BGMAC_TX_LEN_2048_TO_4095 0x33c +#define BGMAC_TX_LEN_4095_TO_8191 0x340 +#define BGMAC_TX_LEN_8192_TO_MAX 0x344 +#define BGMAC_TX_JABBER_PKTS 0x348 /* Error */ +#define BGMAC_TX_OVERSIZE_PKTS 0x34c /* Error */ +#define BGMAC_TX_FRAGMENT_PKTS 0x350 +#define BGMAC_TX_UNDERRUNS 0x354 /* Error */ +#define BGMAC_TX_TOTAL_COLS 0x358 +#define BGMAC_TX_SINGLE_COLS 0x35c +#define BGMAC_TX_MULTIPLE_COLS 0x360 +#define BGMAC_TX_EXCESSIVE_COLS 0x364 /* Error */ +#define BGMAC_TX_LATE_COLS 0x368 /* Error */ +#define BGMAC_TX_DEFERED 0x36c +#define BGMAC_TX_CARRIER_LOST 0x370 +#define BGMAC_TX_PAUSE_PKTS 0x374 +#define BGMAC_TX_UNI_PKTS 0x378 +#define BGMAC_TX_Q0_PKTS 0x37c +#define BGMAC_TX_Q0_OCTETS 0x380 +#define BGMAC_TX_Q0_OCTETS_HIGH 0x384 +#define BGMAC_TX_Q1_PKTS 0x388 +#define BGMAC_TX_Q1_OCTETS 0x38c +#define BGMAC_TX_Q1_OCTETS_HIGH 0x390 +#define BGMAC_TX_Q2_PKTS 0x394 +#define BGMAC_TX_Q2_OCTETS 0x398 +#define BGMAC_TX_Q2_OCTETS_HIGH 0x39c +#define BGMAC_TX_Q3_PKTS 0x3a0 +#define BGMAC_TX_Q3_OCTETS 0x3a4 +#define BGMAC_TX_Q3_OCTETS_HIGH 0x3a8 +#define BGMAC_RX_GOOD_OCTETS 0x3b0 +#define BGMAC_RX_GOOD_OCTETS_HIGH 0x3b4 +#define BGMAC_RX_GOOD_PKTS 0x3b8 +#define BGMAC_RX_OCTETS 0x3bc +#define BGMAC_RX_OCTETS_HIGH 0x3c0 +#define BGMAC_RX_PKTS 0x3c4 +#define BGMAC_RX_BROADCAST_PKTS 0x3c8 +#define BGMAC_RX_MULTICAST_PKTS 0x3cc +#define BGMAC_RX_LEN_64 0x3d0 +#define BGMAC_RX_LEN_65_TO_127 0x3d4 +#define BGMAC_RX_LEN_128_TO_255 0x3d8 +#define BGMAC_RX_LEN_256_TO_511 0x3dc +#define BGMAC_RX_LEN_512_TO_1023 0x3e0 +#define BGMAC_RX_LEN_1024_TO_1522 0x3e4 +#define BGMAC_RX_LEN_1523_TO_2047 0x3e8 +#define BGMAC_RX_LEN_2048_TO_4095 0x3ec +#define BGMAC_RX_LEN_4095_TO_8191 0x3f0 +#define BGMAC_RX_LEN_8192_TO_MAX 0x3f4 +#define BGMAC_RX_JABBER_PKTS 0x3f8 /* Error */ +#define BGMAC_RX_OVERSIZE_PKTS 0x3fc /* Error */ +#define BGMAC_RX_FRAGMENT_PKTS 0x400 +#define BGMAC_RX_MISSED_PKTS 0x404 /* Error */ +#define BGMAC_RX_CRC_ALIGN_ERRS 0x408 /* Error */ +#define BGMAC_RX_UNDERSIZE 0x40c /* Error */ +#define BGMAC_RX_CRC_ERRS 0x410 /* Error */ +#define BGMAC_RX_ALIGN_ERRS 0x414 /* Error */ +#define BGMAC_RX_SYMBOL_ERRS 0x418 /* Error */ +#define BGMAC_RX_PAUSE_PKTS 0x41c +#define BGMAC_RX_NONPAUSE_PKTS 0x420 +#define BGMAC_RX_SACHANGES 0x424 +#define BGMAC_RX_UNI_PKTS 0x428 +#define BGMAC_UNIMAC_VERSION 0x800 +#define BGMAC_HDBKP_CTL 0x804 +#define BGMAC_CMDCFG 0x808 /* Configuration */ +#define BGMAC_CMDCFG_TE 0x00000001 /* Set to activate TX */ +#define BGMAC_CMDCFG_RE 0x00000002 /* Set to activate RX */ +#define BGMAC_CMDCFG_ES_MASK 0x0000000c /* Ethernet speed see gmac_speed */ +#define BGMAC_CMDCFG_ES_10 0x00000000 +#define BGMAC_CMDCFG_ES_100 0x00000004 +#define BGMAC_CMDCFG_ES_1000 0x00000008 +#define BGMAC_CMDCFG_PROM 0x00000010 /* Set to activate promiscuous mode */ +#define BGMAC_CMDCFG_PAD_EN 0x00000020 +#define BGMAC_CMDCFG_CF 0x00000040 +#define BGMAC_CMDCFG_PF 0x00000080 +#define BGMAC_CMDCFG_RPI 0x00000100 /* Unset to enable 802.3x tx flow control */ +#define BGMAC_CMDCFG_TAI 0x00000200 +#define BGMAC_CMDCFG_HD 0x00000400 /* Set if in half duplex mode */ +#define BGMAC_CMDCFG_HD_SHIFT 10 +#define BGMAC_CMDCFG_SR 0x00000800 /* Set to reset mode */ +#define BGMAC_CMDCFG_ML 0x00008000 /* Set to activate mac loopback mode */ +#define BGMAC_CMDCFG_AE 0x00400000 +#define BGMAC_CMDCFG_CFE 0x00800000 +#define BGMAC_CMDCFG_NLC 0x01000000 +#define BGMAC_CMDCFG_RL 0x02000000 +#define BGMAC_CMDCFG_RED 0x04000000 +#define BGMAC_CMDCFG_PE 0x08000000 +#define BGMAC_CMDCFG_TPI 0x10000000 +#define BGMAC_CMDCFG_AT 0x20000000 +#define BGMAC_MACADDR_HIGH 0x80c /* High 4 octets of own mac address */ +#define BGMAC_MACADDR_LOW 0x810 /* Low 2 octets of own mac address */ +#define BGMAC_RXMAX_LENGTH 0x814 /* Max receive frame length with vlan tag */ +#define BGMAC_PAUSEQUANTA 0x818 +#define BGMAC_MAC_MODE 0x844 +#define BGMAC_OUTERTAG 0x848 +#define BGMAC_INNERTAG 0x84c +#define BGMAC_TXIPG 0x85c +#define BGMAC_PAUSE_CTL 0xb30 +#define BGMAC_TX_FLUSH 0xb34 +#define BGMAC_RX_STATUS 0xb38 +#define BGMAC_TX_STATUS 0xb3c + +#define BGMAC_PHY_CTL 0x00 +#define BGMAC_PHY_CTL_SPEED_MSB 0x0040 +#define BGMAC_PHY_CTL_DUPLEX 0x0100 /* duplex mode */ +#define BGMAC_PHY_CTL_RESTART 0x0200 /* restart autonegotiation */ +#define BGMAC_PHY_CTL_ANENAB 0x1000 /* enable autonegotiation */ +#define BGMAC_PHY_CTL_SPEED 0x2000 +#define BGMAC_PHY_CTL_LOOP 0x4000 /* loopback */ +#define BGMAC_PHY_CTL_RESET 0x8000 /* reset */ +/* Helpers */ +#define BGMAC_PHY_CTL_SPEED_10 0 +#define BGMAC_PHY_CTL_SPEED_100 BGMAC_PHY_CTL_SPEED +#define BGMAC_PHY_CTL_SPEED_1000 BGMAC_PHY_CTL_SPEED_MSB +#define BGMAC_PHY_ADV 0x04 +#define BGMAC_PHY_ADV_10HALF 0x0020 /* advertise 10MBits/s half duplex */ +#define BGMAC_PHY_ADV_10FULL 0x0040 /* advertise 10MBits/s full duplex */ +#define BGMAC_PHY_ADV_100HALF 0x0080 /* advertise 100MBits/s half duplex */ +#define BGMAC_PHY_ADV_100FULL 0x0100 /* advertise 100MBits/s full duplex */ +#define BGMAC_PHY_ADV2 0x09 +#define BGMAC_PHY_ADV2_1000HALF 0x0100 /* advertise 1000MBits/s half duplex */ +#define BGMAC_PHY_ADV2_1000FULL 0x0200 /* advertise 1000MBits/s full duplex */ + +/* BCMA GMAC core specific IO Control (BCMA_IOCTL) flags */ +#define BGMAC_BCMA_IOCTL_SW_CLKEN 0x00000004 /* PHY Clock Enable */ +#define BGMAC_BCMA_IOCTL_SW_RESET 0x00000008 /* PHY Reset */ + +/* BCMA GMAC core specific IO status (BCMA_IOST) flags */ +#define BGMAC_BCMA_IOST_ATTACHED 0x00000800 + +#define BGMAC_NUM_MIB_TX_REGS \ + (((BGMAC_TX_Q3_OCTETS_HIGH - BGMAC_TX_GOOD_OCTETS) / 4) + 1) +#define BGMAC_NUM_MIB_RX_REGS \ + (((BGMAC_RX_UNI_PKTS - BGMAC_RX_GOOD_OCTETS) / 4) + 1) + +#define BGMAC_DMA_TX_CTL 0x00 +#define BGMAC_DMA_TX_ENABLE 0x00000001 +#define BGMAC_DMA_TX_SUSPEND 0x00000002 +#define BGMAC_DMA_TX_LOOPBACK 0x00000004 +#define BGMAC_DMA_TX_FLUSH 0x00000010 +#define BGMAC_DMA_TX_PARITY_DISABLE 0x00000800 +#define BGMAC_DMA_TX_ADDREXT_MASK 0x00030000 +#define BGMAC_DMA_TX_ADDREXT_SHIFT 16 +#define BGMAC_DMA_TX_INDEX 0x04 +#define BGMAC_DMA_TX_RINGLO 0x08 +#define BGMAC_DMA_TX_RINGHI 0x0C +#define BGMAC_DMA_TX_STATUS 0x10 +#define BGMAC_DMA_TX_STATDPTR 0x00001FFF +#define BGMAC_DMA_TX_STAT 0xF0000000 +#define BGMAC_DMA_TX_STAT_DISABLED 0x00000000 +#define BGMAC_DMA_TX_STAT_ACTIVE 0x10000000 +#define BGMAC_DMA_TX_STAT_IDLEWAIT 0x20000000 +#define BGMAC_DMA_TX_STAT_STOPPED 0x30000000 +#define BGMAC_DMA_TX_STAT_SUSP 0x40000000 +#define BGMAC_DMA_TX_ERROR 0x14 +#define BGMAC_DMA_TX_ERRDPTR 0x0001FFFF +#define BGMAC_DMA_TX_ERR 0xF0000000 +#define BGMAC_DMA_TX_ERR_NOERR 0x00000000 +#define BGMAC_DMA_TX_ERR_PROT 0x10000000 +#define BGMAC_DMA_TX_ERR_UNDERRUN 0x20000000 +#define BGMAC_DMA_TX_ERR_TRANSFER 0x30000000 +#define BGMAC_DMA_TX_ERR_DESCREAD 0x40000000 +#define BGMAC_DMA_TX_ERR_CORE 0x50000000 +#define BGMAC_DMA_RX_CTL 0x20 +#define BGMAC_DMA_RX_ENABLE 0x00000001 +#define BGMAC_DMA_RX_FRAME_OFFSET_MASK 0x000000FE +#define BGMAC_DMA_RX_FRAME_OFFSET_SHIFT 1 +#define BGMAC_DMA_RX_DIRECT_FIFO 0x00000100 +#define BGMAC_DMA_RX_OVERFLOW_CONT 0x00000400 +#define BGMAC_DMA_RX_PARITY_DISABLE 0x00000800 +#define BGMAC_DMA_RX_ADDREXT_MASK 0x00030000 +#define BGMAC_DMA_RX_ADDREXT_SHIFT 16 +#define BGMAC_DMA_RX_INDEX 0x24 +#define BGMAC_DMA_RX_RINGLO 0x28 +#define BGMAC_DMA_RX_RINGHI 0x2C +#define BGMAC_DMA_RX_STATUS 0x30 +#define BGMAC_DMA_RX_STATDPTR 0x00001FFF +#define BGMAC_DMA_RX_STAT 0xF0000000 +#define BGMAC_DMA_RX_STAT_DISABLED 0x00000000 +#define BGMAC_DMA_RX_STAT_ACTIVE 0x10000000 +#define BGMAC_DMA_RX_STAT_IDLEWAIT 0x20000000 +#define BGMAC_DMA_RX_STAT_STOPPED 0x30000000 +#define BGMAC_DMA_RX_STAT_SUSP 0x40000000 +#define BGMAC_DMA_RX_ERROR 0x34 +#define BGMAC_DMA_RX_ERRDPTR 0x0001FFFF +#define BGMAC_DMA_RX_ERR 0xF0000000 +#define BGMAC_DMA_RX_ERR_NOERR 0x00000000 +#define BGMAC_DMA_RX_ERR_PROT 0x10000000 +#define BGMAC_DMA_RX_ERR_UNDERRUN 0x20000000 +#define BGMAC_DMA_RX_ERR_TRANSFER 0x30000000 +#define BGMAC_DMA_RX_ERR_DESCREAD 0x40000000 +#define BGMAC_DMA_RX_ERR_CORE 0x50000000 + +#define BGMAC_DESC_CTL0_EOT 0x10000000 /* End of ring */ +#define BGMAC_DESC_CTL0_IOC 0x20000000 /* IRQ on complete */ +#define BGMAC_DESC_CTL0_SOF 0x40000000 /* Start of frame */ +#define BGMAC_DESC_CTL0_EOF 0x80000000 /* End of frame */ +#define BGMAC_DESC_CTL1_LEN 0x00001FFF + +#define BGMAC_PHY_NOREGS 0x1E +#define BGMAC_PHY_MASK 0x1F + +#define BGMAC_MAX_TX_RINGS 4 +#define BGMAC_MAX_RX_RINGS 1 + +#define BGMAC_TX_RING_SLOTS 128 +#define BGMAC_RX_RING_SLOTS 512 - 1 /* Why -1? Well, Broadcom does that... */ + +#define BGMAC_RX_HEADER_LEN 28 /* Last 24 bytes are unused. Well... */ +#define BGMAC_RX_FRAME_OFFSET 30 /* There are 2 unused bytes between header and real data */ +#define BGMAC_RX_MAX_FRAME_SIZE 1536 /* Copied from b44/tg3 */ +#define BGMAC_RX_BUF_SIZE (BGMAC_RX_FRAME_OFFSET + BGMAC_RX_MAX_FRAME_SIZE) + +#define BGMAC_BFL_ENETROBO 0x0010 /* has ephy roboswitch spi */ +#define BGMAC_BFL_ENETADM 0x0080 /* has ADMtek switch */ +#define BGMAC_BFL_ENETVLAN 0x0100 /* can do vlan */ + +#define BGMAC_CHIPCTL_1_IF_TYPE_MASK 0x00000030 +#define BGMAC_CHIPCTL_1_IF_TYPE_RMII 0x00000000 +#define BGMAC_CHIPCTL_1_IF_TYPE_MI 0x00000010 +#define BGMAC_CHIPCTL_1_IF_TYPE_RGMII 0x00000020 +#define BGMAC_CHIPCTL_1_SW_TYPE_MASK 0x000000C0 +#define BGMAC_CHIPCTL_1_SW_TYPE_EPHY 0x00000000 +#define BGMAC_CHIPCTL_1_SW_TYPE_EPHYMII 0x00000040 +#define BGMAC_CHIPCTL_1_SW_TYPE_EPHYRMII 0x00000080 +#define BGMAC_CHIPCTL_1_SW_TYPE_RGMII 0x000000C0 +#define BGMAC_CHIPCTL_1_RXC_DLL_BYPASS 0x00010000 + +#define BGMAC_SPEED_10 0x0001 +#define BGMAC_SPEED_100 0x0002 +#define BGMAC_SPEED_1000 0x0004 + +#define BGMAC_WEIGHT 64 + +#define ETHER_MAX_LEN 1518 + +struct bgmac_slot_info { + struct sk_buff *skb; + dma_addr_t dma_addr; +}; + +struct bgmac_dma_desc { + __le32 ctl0; + __le32 ctl1; + __le32 addr_low; + __le32 addr_high; +} __packed; + +enum bgmac_dma_ring_type { + BGMAC_DMA_RING_TX, + BGMAC_DMA_RING_RX, +}; + +/** + * bgmac_dma_ring - contains info about DMA ring (either TX or RX one) + * @start: index of the first slot containing data + * @end: index of a slot that can *not* be read (yet) + * + * Be really aware of the specific @end meaning. It's an index of a slot *after* + * the one containing data that can be read. If @start equals @end the ring is + * empty. + */ +struct bgmac_dma_ring { + u16 num_slots; + u16 start; + u16 end; + + u16 mmio_base; + struct bgmac_dma_desc *cpu_base; + dma_addr_t dma_base; + + struct bgmac_slot_info slots[BGMAC_RX_RING_SLOTS]; +}; + +struct bgmac_rx_header { + __le16 len; + __le16 flags; + __le16 pad[12]; +}; + +struct bgmac { + struct bcma_device *core; + struct bcma_device *cmn; /* Reference to CMN core for BCM4706 */ + struct net_device *net_dev; + struct napi_struct napi; + + /* DMA */ + struct bgmac_dma_ring tx_ring[BGMAC_MAX_TX_RINGS]; + struct bgmac_dma_ring rx_ring[BGMAC_MAX_RX_RINGS]; + + /* Stats */ + bool stats_grabbed; + u32 mib_tx_regs[BGMAC_NUM_MIB_TX_REGS]; + u32 mib_rx_regs[BGMAC_NUM_MIB_RX_REGS]; + + /* Int */ + u32 int_mask; + u32 int_status; + + /* Speed-related */ + int speed; + bool autoneg; + bool full_duplex; + + u8 phyaddr; + bool has_robosw; + + bool loopback; +}; + +static inline u32 bgmac_read(struct bgmac *bgmac, u16 offset) +{ + return bcma_read32(bgmac->core, offset); +} + +static inline void bgmac_write(struct bgmac *bgmac, u16 offset, u32 value) +{ + bcma_write32(bgmac->core, offset, value); +} + +static inline void bgmac_maskset(struct bgmac *bgmac, u16 offset, u32 mask, + u32 set) +{ + bgmac_write(bgmac, offset, (bgmac_read(bgmac, offset) & mask) | set); +} + +static inline void bgmac_mask(struct bgmac *bgmac, u16 offset, u32 mask) +{ + bgmac_maskset(bgmac, offset, mask, 0); +} + +static inline void bgmac_set(struct bgmac *bgmac, u16 offset, u32 set) +{ + bgmac_maskset(bgmac, offset, ~0, set); +} + +#endif /* _BGMAC_H */ |