xref: /openbmc/linux/drivers/net/pcs/pcs-xpcs.h (revision 2cf1c348)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2020 Synopsys, Inc. and/or its affiliates.
4  * Synopsys DesignWare XPCS helpers
5  *
6  * Author: Jose Abreu <Jose.Abreu@synopsys.com>
7  */
8 
9 #define SYNOPSYS_XPCS_ID		0x7996ced0
10 #define SYNOPSYS_XPCS_MASK		0xffffffff
11 
12 /* Vendor regs access */
13 #define DW_VENDOR			BIT(15)
14 
15 /* VR_XS_PCS */
16 #define DW_USXGMII_RST			BIT(10)
17 #define DW_USXGMII_EN			BIT(9)
18 #define DW_VR_XS_PCS_DIG_STS		0x0010
19 #define DW_RXFIFO_ERR			GENMASK(6, 5)
20 
21 /* SR_MII */
22 #define DW_USXGMII_FULL			BIT(8)
23 #define DW_USXGMII_SS_MASK		(BIT(13) | BIT(6) | BIT(5))
24 #define DW_USXGMII_10000		(BIT(13) | BIT(6))
25 #define DW_USXGMII_5000			(BIT(13) | BIT(5))
26 #define DW_USXGMII_2500			(BIT(5))
27 #define DW_USXGMII_1000			(BIT(6))
28 #define DW_USXGMII_100			(BIT(13))
29 #define DW_USXGMII_10			(0)
30 
31 /* SR_AN */
32 #define DW_SR_AN_ADV1			0x10
33 #define DW_SR_AN_ADV2			0x11
34 #define DW_SR_AN_ADV3			0x12
35 #define DW_SR_AN_LP_ABL1		0x13
36 #define DW_SR_AN_LP_ABL2		0x14
37 #define DW_SR_AN_LP_ABL3		0x15
38 
39 /* Clause 73 Defines */
40 /* AN_LP_ABL1 */
41 #define DW_C73_PAUSE			BIT(10)
42 #define DW_C73_ASYM_PAUSE		BIT(11)
43 #define DW_C73_AN_ADV_SF		0x1
44 /* AN_LP_ABL2 */
45 #define DW_C73_1000KX			BIT(5)
46 #define DW_C73_10000KX4			BIT(6)
47 #define DW_C73_10000KR			BIT(7)
48 /* AN_LP_ABL3 */
49 #define DW_C73_2500KX			BIT(0)
50 #define DW_C73_5000KR			BIT(1)
51 
52 /* Clause 37 Defines */
53 /* VR MII MMD registers offsets */
54 #define DW_VR_MII_MMD_CTRL		0x0000
55 #define DW_VR_MII_DIG_CTRL1		0x8000
56 #define DW_VR_MII_AN_CTRL		0x8001
57 #define DW_VR_MII_AN_INTR_STS		0x8002
58 /* Enable 2.5G Mode */
59 #define DW_VR_MII_DIG_CTRL1_2G5_EN	BIT(2)
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
64 
65 /* VR_MII_DIG_CTRL1 */
66 #define DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW		BIT(9)
67 
68 /* VR_MII_DIG_CTRL2 */
69 #define DW_VR_MII_DIG_CTRL2_TX_POL_INV		BIT(4)
70 #define DW_VR_MII_DIG_CTRL2_RX_POL_INV		BIT(0)
71 
72 /* VR_MII_AN_CTRL */
73 #define DW_VR_MII_AN_CTRL_TX_CONFIG_SHIFT	3
74 #define DW_VR_MII_TX_CONFIG_MASK		BIT(3)
75 #define DW_VR_MII_TX_CONFIG_PHY_SIDE_SGMII	0x1
76 #define DW_VR_MII_TX_CONFIG_MAC_SIDE_SGMII	0x0
77 #define DW_VR_MII_AN_CTRL_PCS_MODE_SHIFT	1
78 #define DW_VR_MII_PCS_MODE_MASK			GENMASK(2, 1)
79 #define DW_VR_MII_PCS_MODE_C37_1000BASEX	0x0
80 #define DW_VR_MII_PCS_MODE_C37_SGMII		0x2
81 
82 /* VR_MII_AN_INTR_STS */
83 #define DW_VR_MII_AN_STS_C37_ANSGM_FD		BIT(1)
84 #define DW_VR_MII_AN_STS_C37_ANSGM_SP_SHIFT	2
85 #define DW_VR_MII_AN_STS_C37_ANSGM_SP		GENMASK(3, 2)
86 #define DW_VR_MII_C37_ANSGM_SP_10		0x0
87 #define DW_VR_MII_C37_ANSGM_SP_100		0x1
88 #define DW_VR_MII_C37_ANSGM_SP_1000		0x2
89 #define DW_VR_MII_C37_ANSGM_SP_LNKSTS		BIT(4)
90 
91 /* SR MII MMD Control defines */
92 #define AN_CL37_EN			BIT(12)	/* Enable Clause 37 auto-nego */
93 #define SGMII_SPEED_SS13		BIT(13)	/* SGMII speed along with SS6 */
94 #define SGMII_SPEED_SS6			BIT(6)	/* SGMII speed along with SS13 */
95 
96 /* VR MII EEE Control 0 defines */
97 #define DW_VR_MII_EEE_LTX_EN			BIT(0)  /* LPI Tx Enable */
98 #define DW_VR_MII_EEE_LRX_EN			BIT(1)  /* LPI Rx Enable */
99 #define DW_VR_MII_EEE_TX_QUIET_EN		BIT(2)  /* Tx Quiet Enable */
100 #define DW_VR_MII_EEE_RX_QUIET_EN		BIT(3)  /* Rx Quiet Enable */
101 #define DW_VR_MII_EEE_TX_EN_CTRL		BIT(4)  /* Tx Control Enable */
102 #define DW_VR_MII_EEE_RX_EN_CTRL		BIT(7)  /* Rx Control Enable */
103 
104 #define DW_VR_MII_EEE_MULT_FACT_100NS_SHIFT	8
105 #define DW_VR_MII_EEE_MULT_FACT_100NS		GENMASK(11, 8)
106 
107 /* VR MII EEE Control 1 defines */
108 #define DW_VR_MII_EEE_TRN_LPI		BIT(0)	/* Transparent Mode Enable */
109 
110 int xpcs_read(struct dw_xpcs *xpcs, int dev, u32 reg);
111 int xpcs_write(struct dw_xpcs *xpcs, int dev, u32 reg, u16 val);
112 
113 int nxp_sja1105_sgmii_pma_config(struct dw_xpcs *xpcs);
114 int nxp_sja1110_sgmii_pma_config(struct dw_xpcs *xpcs);
115 int nxp_sja1110_2500basex_pma_config(struct dw_xpcs *xpcs);
116