xref: /openbmc/u-boot/drivers/net/fm/t4240.c (revision 87a62bce)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2012 Freescale Semiconductor, Inc.
4  *	Roy Zang <tie-fei.zang@freescale.com>
5  */
6 #include <common.h>
7 #include <phy.h>
8 #include <fm_eth.h>
9 #include <asm/io.h>
10 #include <asm/immap_85xx.h>
11 #include <asm/fsl_serdes.h>
12 
13 u32 port_to_devdisr[] = {
14 	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
15 	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
16 	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
17 	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
18 	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
19 	[FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
20 	[FM1_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC1_9,
21 	[FM1_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC1_10,
22 	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
23 	[FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
24 	[FM2_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC2_1,
25 	[FM2_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC2_2,
26 	[FM2_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC2_3,
27 	[FM2_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC2_4,
28 	[FM2_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC2_5,
29 	[FM2_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC2_6,
30 	[FM2_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC2_9,
31 	[FM2_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC2_10,
32 	[FM2_10GEC1] = FSL_CORENET_DEVDISR2_10GEC2_1,
33 	[FM2_10GEC2] = FSL_CORENET_DEVDISR2_10GEC2_2,
34 };
35 
36 static int is_device_disabled(enum fm_port port)
37 {
38 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
39 	u32 devdisr2 = in_be32(&gur->devdisr2);
40 
41 	return port_to_devdisr[port] & devdisr2;
42 }
43 
44 void fman_disable_port(enum fm_port port)
45 {
46 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
47 
48 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
49 }
50 
51 void fman_enable_port(enum fm_port port)
52 {
53 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
54 
55 	clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
56 }
57 
58 phy_interface_t fman_port_enet_if(enum fm_port port)
59 {
60 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
61 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
62 
63 	if (is_device_disabled(port))
64 		return PHY_INTERFACE_MODE_NONE;
65 
66 	if ((port == FM1_10GEC1 || port == FM1_10GEC2) &&
67 	    ((is_serdes_configured(XAUI_FM1_MAC9))	||
68 	     (is_serdes_configured(XAUI_FM1_MAC10))	||
69 	     (is_serdes_configured(XFI_FM1_MAC9))	||
70 	     (is_serdes_configured(XFI_FM1_MAC10))))
71 		return PHY_INTERFACE_MODE_XGMII;
72 
73 	if ((port == FM1_DTSEC9 || port == FM1_DTSEC10) &&
74 	    ((is_serdes_configured(XFI_FM1_MAC9)) ||
75 	     (is_serdes_configured(XFI_FM1_MAC10))))
76 		return PHY_INTERFACE_MODE_NONE;
77 
78 	if ((port == FM2_10GEC1 || port == FM2_10GEC2) &&
79 	    ((is_serdes_configured(XAUI_FM2_MAC9))	||
80 	     (is_serdes_configured(XAUI_FM2_MAC10))	||
81 	     (is_serdes_configured(XFI_FM2_MAC9))	||
82 	     (is_serdes_configured(XFI_FM2_MAC10))))
83 		return PHY_INTERFACE_MODE_XGMII;
84 
85 #define FSL_CORENET_RCWSR13_EC1			0x60000000 /* bits 417..418 */
86 #define FSL_CORENET_RCWSR13_EC1_FM2_DTSEC5_RGMII	0x00000000
87 #define FSL_CORENET_RCWSR13_EC1_FM2_GPIO		0x40000000
88 #define FSL_CORENET_RCWSR13_EC2			0x18000000 /* bits 419..420 */
89 #define FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII	0x00000000
90 #define FSL_CORENET_RCWSR13_EC2_FM2_DTSEC6_RGMII	0x08000000
91 #define FSL_CORENET_RCWSR13_EC2_FM1_GPIO		0x10000000
92 	/* handle RGMII first */
93 	if ((port == FM2_DTSEC5) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
94 		FSL_CORENET_RCWSR13_EC1_FM2_DTSEC5_RGMII))
95 		return PHY_INTERFACE_MODE_RGMII;
96 
97 	if ((port == FM1_DTSEC5) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
98 		FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII))
99 		return PHY_INTERFACE_MODE_RGMII;
100 
101 	if ((port == FM2_DTSEC6) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
102 		FSL_CORENET_RCWSR13_EC2_FM2_DTSEC6_RGMII))
103 		return PHY_INTERFACE_MODE_RGMII;
104 	switch (port) {
105 	case FM1_DTSEC1:
106 	case FM1_DTSEC2:
107 	case FM1_DTSEC3:
108 	case FM1_DTSEC4:
109 	case FM1_DTSEC5:
110 	case FM1_DTSEC6:
111 	case FM1_DTSEC9:
112 	case FM1_DTSEC10:
113 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
114 			return PHY_INTERFACE_MODE_SGMII;
115 		break;
116 	case FM2_DTSEC1:
117 	case FM2_DTSEC2:
118 	case FM2_DTSEC3:
119 	case FM2_DTSEC4:
120 	case FM2_DTSEC5:
121 	case FM2_DTSEC6:
122 	case FM2_DTSEC9:
123 	case FM2_DTSEC10:
124 		if (is_serdes_configured(SGMII_FM2_DTSEC1 + port - FM2_DTSEC1))
125 			return PHY_INTERFACE_MODE_SGMII;
126 		break;
127 	default:
128 		break;
129 	}
130 
131 	/* handle QSGMII */
132 	switch (port) {
133 	case FM1_DTSEC1:
134 	case FM1_DTSEC2:
135 	case FM1_DTSEC3:
136 	case FM1_DTSEC4:
137 		/* check lane G on SerDes1 */
138 		if (is_serdes_configured(QSGMII_FM1_A))
139 			return PHY_INTERFACE_MODE_QSGMII;
140 		break;
141 	case FM1_DTSEC5:
142 	case FM1_DTSEC6:
143 	case FM1_DTSEC9:
144 	case FM1_DTSEC10:
145 		/* check lane C on SerDes1 */
146 		if (is_serdes_configured(QSGMII_FM1_B))
147 			return PHY_INTERFACE_MODE_QSGMII;
148 		break;
149 	case FM2_DTSEC1:
150 	case FM2_DTSEC2:
151 	case FM2_DTSEC3:
152 	case FM2_DTSEC4:
153 		/* check lane G on SerDes2 */
154 		if (is_serdes_configured(QSGMII_FM2_A))
155 			return PHY_INTERFACE_MODE_QSGMII;
156 		break;
157 	case FM2_DTSEC5:
158 	case FM2_DTSEC6:
159 	case FM2_DTSEC9:
160 	case FM2_DTSEC10:
161 		/* check lane C on SerDes2 */
162 		if (is_serdes_configured(QSGMII_FM2_B))
163 			return PHY_INTERFACE_MODE_QSGMII;
164 		break;
165 	default:
166 		break;
167 	}
168 
169 	return PHY_INTERFACE_MODE_NONE;
170 }
171