/***************************************************************************
 *
 * Copyright (C) 2007,2008  SMSC
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 ***************************************************************************
 */

#ifndef _SMSC9420_H
#define _SMSC9420_H

#define TX_RING_SIZE                    (32)
#define RX_RING_SIZE                    (128)

/* interrupt deassertion in multiples of 10us */
#define INT_DEAS_TIME                   (50)

#define NAPI_WEIGHT                     (64)
#define SMSC_BAR                        (3)

#ifdef __BIG_ENDIAN
/* Register set is duplicated for BE at an offset of 0x200 */
#define LAN9420_CPSR_ENDIAN_OFFSET      (0x200)
#else
#define LAN9420_CPSR_ENDIAN_OFFSET      (0)
#endif

#define PCI_VENDOR_ID_9420              (0x1055)
#define PCI_DEVICE_ID_9420              (0xE420)

#define LAN_REGISTER_EXTENT             (0x400)

#define SMSC9420_EEPROM_SIZE            ((u32)11)
#define SMSC9420_EEPROM_MAGIC           (0x9420)

#define PKT_BUF_SZ                      (VLAN_ETH_FRAME_LEN + NET_IP_ALIGN + 4)

/***********************************************/
/* DMA Controller Control and Status Registers */
/***********************************************/
#define BUS_MODE                        (0x00)
#define BUS_MODE_SWR_                   (BIT(0))
#define BUS_MODE_DMA_BURST_LENGTH_1     (BIT(8))
#define BUS_MODE_DMA_BURST_LENGTH_2     (BIT(9))
#define BUS_MODE_DMA_BURST_LENGTH_4     (BIT(10))
#define BUS_MODE_DMA_BURST_LENGTH_8     (BIT(11))
#define BUS_MODE_DMA_BURST_LENGTH_16    (BIT(12))
#define BUS_MODE_DMA_BURST_LENGTH_32    (BIT(13))
#define BUS_MODE_DBO_                   (BIT(20))

#define TX_POLL_DEMAND                  (0x04)

#define RX_POLL_DEMAND                  (0x08)

#define RX_BASE_ADDR                    (0x0C)

#define TX_BASE_ADDR                    (0x10)

#define DMAC_STATUS                     (0x14)
#define DMAC_STS_TS_                    (7 << 20)
#define DMAC_STS_RS_                    (7 << 17)
#define DMAC_STS_NIS_                   (BIT(16))
#define DMAC_STS_AIS_                   (BIT(15))
#define DMAC_STS_RWT_                   (BIT(9))
#define DMAC_STS_RXPS_                  (BIT(8))
#define DMAC_STS_RXBU_                  (BIT(7))
#define DMAC_STS_RX_                    (BIT(6))
#define DMAC_STS_TXUNF_                 (BIT(5))
#define DMAC_STS_TXBU_                  (BIT(2))
#define DMAC_STS_TXPS_                  (BIT(1))
#define DMAC_STS_TX_                    (BIT(0))

#define DMAC_CONTROL                    (0x18)
#define DMAC_CONTROL_TTM_               (BIT(22))
#define DMAC_CONTROL_SF_                (BIT(21))
#define DMAC_CONTROL_ST_                (BIT(13))
#define DMAC_CONTROL_OSF_               (BIT(2))
#define DMAC_CONTROL_SR_                (BIT(1))

#define DMAC_INTR_ENA                   (0x1C)
#define DMAC_INTR_ENA_NIS_              (BIT(16))
#define DMAC_INTR_ENA_AIS_              (BIT(15))
#define DMAC_INTR_ENA_RWT_              (BIT(9))
#define DMAC_INTR_ENA_RXPS_             (BIT(8))
#define DMAC_INTR_ENA_RXBU_             (BIT(7))
#define DMAC_INTR_ENA_RX_               (BIT(6))
#define DMAC_INTR_ENA_TXBU_             (BIT(2))
#define DMAC_INTR_ENA_TXPS_             (BIT(1))
#define DMAC_INTR_ENA_TX_               (BIT(0))

#define MISS_FRAME_CNTR                 (0x20)

#define TX_BUFF_ADDR                    (0x50)

#define RX_BUFF_ADDR                    (0x54)

/* Transmit Descriptor Bit Defs */
#define TDES0_OWN_                      (0x80000000)
#define TDES0_ERROR_SUMMARY_            (0x00008000)
#define TDES0_LOSS_OF_CARRIER_          (0x00000800)
#define TDES0_NO_CARRIER_               (0x00000400)
#define TDES0_LATE_COLLISION_           (0x00000200)
#define TDES0_EXCESSIVE_COLLISIONS_     (0x00000100)
#define TDES0_HEARTBEAT_FAIL_           (0x00000080)
#define TDES0_COLLISION_COUNT_MASK_     (0x00000078)
#define TDES0_COLLISION_COUNT_SHFT_     (3)
#define TDES0_EXCESSIVE_DEFERRAL_       (0x00000004)
#define TDES0_DEFERRED_                 (0x00000001)

#define TDES1_IC_                       0x80000000
#define TDES1_LS_                       0x40000000
#define TDES1_FS_                       0x20000000
#define TDES1_TXCSEN_                   0x08000000
#define TDES1_TER_                      (BIT(25))
#define TDES1_TCH_                      0x01000000

/* Receive Descriptor 0 Bit Defs */
#define RDES0_OWN_                      (0x80000000)
#define RDES0_FRAME_LENGTH_MASK_        (0x07FF0000)
#define RDES0_FRAME_LENGTH_SHFT_        (16)
#define RDES0_ERROR_SUMMARY_            (0x00008000)
#define RDES0_DESCRIPTOR_ERROR_         (0x00004000)
#define RDES0_LENGTH_ERROR_             (0x00001000)
#define RDES0_RUNT_FRAME_               (0x00000800)
#define RDES0_MULTICAST_FRAME_          (0x00000400)
#define RDES0_FIRST_DESCRIPTOR_         (0x00000200)
#define RDES0_LAST_DESCRIPTOR_          (0x00000100)
#define RDES0_FRAME_TOO_LONG_           (0x00000080)
#define RDES0_COLLISION_SEEN_           (0x00000040)
#define RDES0_FRAME_TYPE_               (0x00000020)
#define RDES0_WATCHDOG_TIMEOUT_         (0x00000010)
#define RDES0_MII_ERROR_                (0x00000008)
#define RDES0_DRIBBLING_BIT_            (0x00000004)
#define RDES0_CRC_ERROR_                (0x00000002)

/* Receive Descriptor 1 Bit Defs */
#define RDES1_RER_                      (0x02000000)

/***********************************************/
/*       MAC Control and Status Registers      */
/***********************************************/
#define MAC_CR                          (0x80)
#define MAC_CR_RXALL_                   (0x80000000)
#define MAC_CR_DIS_RXOWN_               (0x00800000)
#define MAC_CR_LOOPBK_                  (0x00200000)
#define MAC_CR_FDPX_                    (0x00100000)
#define MAC_CR_MCPAS_                   (0x00080000)
#define MAC_CR_PRMS_                    (0x00040000)
#define MAC_CR_INVFILT_                 (0x00020000)
#define MAC_CR_PASSBAD_                 (0x00010000)
#define MAC_CR_HFILT_                   (0x00008000)
#define MAC_CR_HPFILT_                  (0x00002000)
#define MAC_CR_LCOLL_                   (0x00001000)
#define MAC_CR_DIS_BCAST_               (0x00000800)
#define MAC_CR_DIS_RTRY_                (0x00000400)
#define MAC_CR_PADSTR_                  (0x00000100)
#define MAC_CR_BOLMT_MSK                (0x000000C0)
#define MAC_CR_MFCHK_                   (0x00000020)
#define MAC_CR_TXEN_                    (0x00000008)
#define MAC_CR_RXEN_                    (0x00000004)

#define ADDRH                           (0x84)

#define ADDRL                           (0x88)

#define HASHH                           (0x8C)

#define HASHL                           (0x90)

#define MII_ACCESS                      (0x94)
#define MII_ACCESS_MII_BUSY_            (0x00000001)
#define MII_ACCESS_MII_WRITE_           (0x00000002)
#define MII_ACCESS_MII_READ_            (0x00000000)
#define MII_ACCESS_INDX_MSK_            (0x000007C0)
#define MII_ACCESS_PHYADDR_MSK_         (0x0000F8C0)
#define MII_ACCESS_INDX_SHFT_CNT        (6)
#define MII_ACCESS_PHYADDR_SHFT_CNT     (11)

#define MII_DATA                        (0x98)

#define FLOW                            (0x9C)

#define VLAN1                           (0xA0)

#define VLAN2                           (0xA4)

#define WUFF                            (0xA8)

#define WUCSR                           (0xAC)

#define COE_CR                          (0xB0)
#define TX_COE_EN                       (0x00010000)
#define RX_COE_MODE                     (0x00000002)
#define RX_COE_EN                       (0x00000001)

/***********************************************/
/*     System Control and Status Registers     */
/***********************************************/
#define ID_REV                          (0xC0)

#define INT_CTL                         (0xC4)
#define INT_CTL_SW_INT_EN_              (0x00008000)
#define INT_CTL_SBERR_INT_EN_           (1 << 12)
#define INT_CTL_MBERR_INT_EN_           (1 << 13)
#define INT_CTL_GPT_INT_EN_             (0x00000008)
#define INT_CTL_PHY_INT_EN_             (0x00000004)
#define INT_CTL_WAKE_INT_EN_            (0x00000002)

#define INT_STAT                        (0xC8)
#define INT_STAT_SW_INT_                (1 << 15)
#define INT_STAT_MBERR_INT_             (1 << 13)
#define INT_STAT_SBERR_INT_             (1 << 12)
#define INT_STAT_GPT_INT_               (1 << 3)
#define INT_STAT_PHY_INT_               (0x00000004)
#define INT_STAT_WAKE_INT_              (0x00000002)
#define INT_STAT_DMAC_INT_              (0x00000001)

#define INT_CFG                         (0xCC)
#define INT_CFG_IRQ_INT_                (0x00080000)
#define INT_CFG_IRQ_EN_                 (0x00040000)
#define INT_CFG_INT_DEAS_CLR_           (0x00000200)
#define INT_CFG_INT_DEAS_MASK           (0x000000FF)

#define GPIO_CFG                        (0xD0)
#define GPIO_CFG_LED_3_                 (0x40000000)
#define GPIO_CFG_LED_2_                 (0x20000000)
#define GPIO_CFG_LED_1_                 (0x10000000)
#define GPIO_CFG_EEPR_EN_               (0x00700000)

#define GPT_CFG                         (0xD4)
#define GPT_CFG_TIMER_EN_               (0x20000000)

#define GPT_CNT                         (0xD8)

#define BUS_CFG                         (0xDC)
#define BUS_CFG_RXTXWEIGHT_1_1          (0 << 25)
#define BUS_CFG_RXTXWEIGHT_2_1          (1 << 25)
#define BUS_CFG_RXTXWEIGHT_3_1          (2 << 25)
#define BUS_CFG_RXTXWEIGHT_4_1          (3 << 25)

#define PMT_CTRL                        (0xE0)

#define FREE_RUN                        (0xF4)

#define E2P_CMD                         (0xF8)
#define E2P_CMD_EPC_BUSY_               (0x80000000)
#define E2P_CMD_EPC_CMD_                (0x70000000)
#define E2P_CMD_EPC_CMD_READ_           (0x00000000)
#define E2P_CMD_EPC_CMD_EWDS_           (0x10000000)
#define E2P_CMD_EPC_CMD_EWEN_           (0x20000000)
#define E2P_CMD_EPC_CMD_WRITE_          (0x30000000)
#define E2P_CMD_EPC_CMD_WRAL_           (0x40000000)
#define E2P_CMD_EPC_CMD_ERASE_          (0x50000000)
#define E2P_CMD_EPC_CMD_ERAL_           (0x60000000)
#define E2P_CMD_EPC_CMD_RELOAD_         (0x70000000)
#define E2P_CMD_EPC_TIMEOUT_            (0x00000200)
#define E2P_CMD_MAC_ADDR_LOADED_        (0x00000100)
#define E2P_CMD_EPC_ADDR_               (0x000000FF)

#define E2P_DATA                        (0xFC)
#define E2P_DATA_EEPROM_DATA_           (0x000000FF)

#endif /* _SMSC9420_H */