1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2020 Synopsys, Inc. and/or its affiliates.
4 * Synopsys DesignWare XPCS helpers
9 #include <linux/bits.h>
10 #include <linux/pcs/pcs-xpcs.h>
12 /* Vendor regs access */
13 #define DW_VENDOR BIT(15)
16 #define DW_USXGMII_RST BIT(10)
17 #define DW_USXGMII_EN BIT(9)
18 #define DW_VR_XS_PCS_DIG_CTRL1 0x0000
19 #define DW_VR_RST BIT(15)
20 #define DW_EN_VSMMD1 BIT(13)
21 #define DW_CL37_BP BIT(12)
22 #define DW_VR_XS_PCS_DIG_STS 0x0010
23 #define DW_RXFIFO_ERR GENMASK(6, 5)
24 #define DW_PSEQ_ST GENMASK(4, 2)
25 #define DW_PSEQ_ST_GOOD FIELD_PREP(GENMASK(4, 2), 0x4)
28 #define DW_USXGMII_FULL BIT(8)
29 #define DW_USXGMII_SS_MASK (BIT(13) | BIT(6) | BIT(5))
30 #define DW_USXGMII_10000 (BIT(13) | BIT(6))
31 #define DW_USXGMII_5000 (BIT(13) | BIT(5))
32 #define DW_USXGMII_2500 (BIT(5))
33 #define DW_USXGMII_1000 (BIT(6))
34 #define DW_USXGMII_100 (BIT(13))
35 #define DW_USXGMII_10 (0)
38 #define DW_SR_AN_ADV1 0x10
39 #define DW_SR_AN_ADV2 0x11
40 #define DW_SR_AN_ADV3 0x12
42 /* Clause 73 Defines */
44 #define DW_C73_PAUSE BIT(10)
45 #define DW_C73_ASYM_PAUSE BIT(11)
46 #define DW_C73_AN_ADV_SF 0x1
48 #define DW_C73_1000KX BIT(5)
49 #define DW_C73_10000KX4 BIT(6)
50 #define DW_C73_10000KR BIT(7)
52 #define DW_C73_2500KX BIT(0)
53 #define DW_C73_5000KR BIT(1)
55 /* Clause 37 Defines */
56 /* VR MII MMD registers offsets */
57 #define DW_VR_MII_DIG_CTRL1 0x8000
58 #define DW_VR_MII_AN_CTRL 0x8001
59 #define DW_VR_MII_AN_INTR_STS 0x8002
60 /* EEE Mode Control Register */
61 #define DW_VR_MII_EEE_MCTRL0 0x8006
62 #define DW_VR_MII_EEE_MCTRL1 0x800b
63 #define DW_VR_MII_DIG_CTRL2 0x80e1
65 /* VR_MII_DIG_CTRL1 */
66 #define DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW BIT(9)
67 #define DW_VR_MII_DIG_CTRL1_2G5_EN BIT(2)
68 #define DW_VR_MII_DIG_CTRL1_PHY_MODE_CTRL BIT(0)
70 /* VR_MII_DIG_CTRL2 */
71 #define DW_VR_MII_DIG_CTRL2_TX_POL_INV BIT(4)
72 #define DW_VR_MII_DIG_CTRL2_RX_POL_INV BIT(0)
75 #define DW_VR_MII_AN_CTRL_8BIT BIT(8)
76 #define DW_VR_MII_TX_CONFIG_MASK BIT(3)
77 #define DW_VR_MII_TX_CONFIG_PHY_SIDE_SGMII 0x1
78 #define DW_VR_MII_TX_CONFIG_MAC_SIDE_SGMII 0x0
79 #define DW_VR_MII_PCS_MODE_MASK GENMASK(2, 1)
80 #define DW_VR_MII_PCS_MODE_C37_1000BASEX 0x0
81 #define DW_VR_MII_PCS_MODE_C37_SGMII 0x2
82 #define DW_VR_MII_AN_INTR_EN BIT(0)
84 /* VR_MII_AN_INTR_STS */
85 #define DW_VR_MII_AN_STS_C37_ANCMPLT_INTR BIT(0)
86 #define DW_VR_MII_AN_STS_C37_ANSGM_FD BIT(1)
87 #define DW_VR_MII_AN_STS_C37_ANSGM_SP GENMASK(3, 2)
88 #define DW_VR_MII_C37_ANSGM_SP_10 0x0
89 #define DW_VR_MII_C37_ANSGM_SP_100 0x1
90 #define DW_VR_MII_C37_ANSGM_SP_1000 0x2
91 #define DW_VR_MII_C37_ANSGM_SP_LNKSTS BIT(4)
93 /* VR MII EEE Control 0 defines */
94 #define DW_VR_MII_EEE_LTX_EN BIT(0) /* LPI Tx Enable */
95 #define DW_VR_MII_EEE_LRX_EN BIT(1) /* LPI Rx Enable */
96 #define DW_VR_MII_EEE_TX_QUIET_EN BIT(2) /* Tx Quiet Enable */
97 #define DW_VR_MII_EEE_RX_QUIET_EN BIT(3) /* Rx Quiet Enable */
98 #define DW_VR_MII_EEE_TX_EN_CTRL BIT(4) /* Tx Control Enable */
99 #define DW_VR_MII_EEE_RX_EN_CTRL BIT(7) /* Rx Control Enable */
101 #define DW_VR_MII_EEE_MULT_FACT_100NS GENMASK(11, 8)
103 /* VR MII EEE Control 1 defines */
104 #define DW_VR_MII_EEE_TRN_LPI BIT(0) /* Transparent Mode Enable */
106 #define DW_XPCS_INFO_DECLARE(_name, _pcs, _pma) \
107 static const struct dw_xpcs_info _name = { .pcs = _pcs, .pma = _pma }
118 struct dw_xpcs_info info;
119 const struct dw_xpcs_desc *desc;
120 struct mdio_device *mdiodev;
121 struct clk_bulk_data clks[DW_XPCS_NUM_CLKS];
122 struct phylink_pcs pcs;
123 phy_interface_t interface;
127 int xpcs_read(struct dw_xpcs *xpcs, int dev, u32 reg);
128 int xpcs_write(struct dw_xpcs *xpcs, int dev, u32 reg, u16 val);
129 int xpcs_modify(struct dw_xpcs *xpcs, int dev, u32 reg, u16 mask, u16 set);
130 int xpcs_read_vpcs(struct dw_xpcs *xpcs, int reg);
131 int xpcs_write_vpcs(struct dw_xpcs *xpcs, int reg, u16 val);
132 int nxp_sja1105_sgmii_pma_config(struct dw_xpcs *xpcs);
133 int nxp_sja1110_sgmii_pma_config(struct dw_xpcs *xpcs);
134 int nxp_sja1110_2500basex_pma_config(struct dw_xpcs *xpcs);
135 int txgbe_xpcs_switch_mode(struct dw_xpcs *xpcs, phy_interface_t interface);