1 /* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ 2 /* 3 * Northstar Plus switch SerDes/SGMII PHY definitions 4 * 5 * Copyright (C) 2018 Florian Fainelli <f.fainelli@gmail.com> 6 */ 7 8 #include <linux/phy.h> 9 #include <linux/types.h> 10 11 /* Non-standard page used to access SerDes PHY registers on NorthStar Plus */ 12 #define B53_SERDES_PAGE 0x16 13 #define B53_SERDES_BLKADDR 0x3e 14 #define B53_SERDES_LANE 0x3c 15 16 #define B53_SERDES_ID0 0x20 17 #define SERDES_ID0_MODEL_MASK 0x3f 18 #define SERDES_ID0_REV_NUM_SHIFT 11 19 #define SERDES_ID0_REV_NUM_MASK 0x7 20 #define SERDES_ID0_REV_LETTER_SHIFT 14 21 22 #define B53_SERDES_MII_REG(x) (0x20 + (x) * 2) 23 #define B53_SERDES_DIGITAL_CONTROL(x) (0x1e + (x) * 2) 24 #define B53_SERDES_DIGITAL_STATUS 0x28 25 26 /* SERDES_DIGITAL_CONTROL1 */ 27 #define FIBER_MODE_1000X BIT(0) 28 #define TBI_INTERFACE BIT(1) 29 #define SIGNAL_DETECT_EN BIT(2) 30 #define INVERT_SIGNAL_DETECT BIT(3) 31 #define AUTODET_EN BIT(4) 32 #define SGMII_MASTER_MODE BIT(5) 33 #define DISABLE_DLL_PWRDOWN BIT(6) 34 #define CRC_CHECKER_DIS BIT(7) 35 #define COMMA_DET_EN BIT(8) 36 #define ZERO_COMMA_DET_EN BIT(9) 37 #define REMOTE_LOOPBACK BIT(10) 38 #define SEL_RX_PKTS_FOR_CNTR BIT(11) 39 #define MASTER_MDIO_PHY_SEL BIT(13) 40 #define DISABLE_SIGNAL_DETECT_FLT BIT(14) 41 42 /* SERDES_DIGITAL_CONTROL2 */ 43 #define EN_PARALLEL_DET BIT(0) 44 #define DIS_FALSE_LINK BIT(1) 45 #define FLT_FORCE_LINK BIT(2) 46 #define EN_AUTONEG_ERR_TIMER BIT(3) 47 #define DIS_REMOTE_FAULT_SENSING BIT(4) 48 #define FORCE_XMIT_DATA BIT(5) 49 #define AUTONEG_FAST_TIMERS BIT(6) 50 #define DIS_CARRIER_EXTEND BIT(7) 51 #define DIS_TRRR_GENERATION BIT(8) 52 #define BYPASS_PCS_RX BIT(9) 53 #define BYPASS_PCS_TX BIT(10) 54 #define TEST_CNTR_EN BIT(11) 55 #define TX_PACKET_SEQ_TEST BIT(12) 56 #define TX_IDLE_JAM_SEQ_TEST BIT(13) 57 #define CLR_BER_CNTR BIT(14) 58 59 /* SERDES_DIGITAL_CONTROL3 */ 60 #define TX_FIFO_RST BIT(0) 61 #define FIFO_ELAST_TX_RX_SHIFT 1 62 #define FIFO_ELAST_TX_RX_5K 0 63 #define FIFO_ELAST_TX_RX_10K 1 64 #define FIFO_ELAST_TX_RX_13_5K 2 65 #define FIFO_ELAST_TX_RX_18_5K 3 66 #define BLOCK_TXEN_MODE BIT(9) 67 #define JAM_FALSE_CARRIER_MODE BIT(10) 68 #define EXT_PHY_CRS_MODE BIT(11) 69 #define INVERT_EXT_PHY_CRS BIT(12) 70 #define DISABLE_TX_CRS BIT(13) 71 72 /* SERDES_DIGITAL_STATUS */ 73 #define SGMII_MODE BIT(0) 74 #define LINK_STATUS BIT(1) 75 #define DUPLEX_STATUS BIT(2) 76 #define SPEED_STATUS_SHIFT 3 77 #define SPEED_STATUS_10 0 78 #define SPEED_STATUS_100 1 79 #define SPEED_STATUS_1000 2 80 #define SPEED_STATUS_2500 3 81 #define SPEED_STATUS_MASK SPEED_STATUS_2500 82 #define PAUSE_RESOLUTION_TX_SIDE BIT(5) 83 #define PAUSE_RESOLUTION_RX_SIDE BIT(6) 84 #define LINK_STATUS_CHANGE BIT(7) 85 #define EARLY_END_EXT_DET BIT(8) 86 #define CARRIER_EXT_ERR_DET BIT(9) 87 #define RX_ERR_DET BIT(10) 88 #define TX_ERR_DET BIT(11) 89 #define CRC_ERR_DET BIT(12) 90 #define FALSE_CARRIER_ERR_DET BIT(13) 91 #define RXFIFO_ERR_DET BIT(14) 92 #define TXFIFO_ERR_DET BIT(15) 93 94 /* Block offsets */ 95 #define SERDES_DIGITAL_BLK 0x8300 96 #define SERDES_ID0 0x8310 97 #define SERDES_MII_BLK 0xffe0 98 #define SERDES_XGXSBLK0_BLOCKADDRESS 0xffd0 99 100 struct phylink_link_state; 101 102 static inline u8 b53_serdes_map_lane(struct b53_device *dev, int port) 103 { 104 if (!dev->ops->serdes_map_lane) 105 return B53_INVALID_LANE; 106 107 return dev->ops->serdes_map_lane(dev, port); 108 } 109 110 int b53_serdes_get_link(struct b53_device *dev, int port); 111 int b53_serdes_link_state(struct b53_device *dev, int port, 112 struct phylink_link_state *state); 113 void b53_serdes_config(struct b53_device *dev, int port, unsigned int mode, 114 const struct phylink_link_state *state); 115 void b53_serdes_an_restart(struct b53_device *dev, int port); 116 void b53_serdes_link_set(struct b53_device *dev, int port, unsigned int mode, 117 phy_interface_t interface, bool link_up); 118 void b53_serdes_phylink_validate(struct b53_device *dev, int port, 119 unsigned long *supported, 120 struct phylink_link_state *state); 121 #if IS_ENABLED(CONFIG_B53_SERDES) 122 int b53_serdes_init(struct b53_device *dev, int port); 123 #else 124 static inline int b53_serdes_init(struct b53_device *dev, int port) 125 { 126 return -ENODEV; 127 } 128 #endif 129