xref: /openbmc/u-boot/drivers/net/fm/t4240.c (revision 5994e8b6)
1 /*
2  * Copyright 2012 Freescale Semiconductor, Inc.
3  *	Roy Zang <tie-fei.zang@freescale.com>
4  *
5  * SPDX-License-Identifier:	GPL-2.0+
6  */
7 #include <common.h>
8 #include <phy.h>
9 #include <fm_eth.h>
10 #include <asm/io.h>
11 #include <asm/immap_85xx.h>
12 #include <asm/fsl_serdes.h>
13 
14 u32 port_to_devdisr[] = {
15 	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
16 	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
17 	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
18 	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
19 	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
20 	[FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
21 	[FM1_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC1_9,
22 	[FM1_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC1_10,
23 	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
24 	[FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
25 	[FM2_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC2_1,
26 	[FM2_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC2_2,
27 	[FM2_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC2_3,
28 	[FM2_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC2_4,
29 	[FM2_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC2_5,
30 	[FM2_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC2_6,
31 	[FM2_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC2_9,
32 	[FM2_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC2_10,
33 	[FM2_10GEC1] = FSL_CORENET_DEVDISR2_10GEC2_1,
34 	[FM2_10GEC2] = FSL_CORENET_DEVDISR2_10GEC2_2,
35 };
36 
37 static int is_device_disabled(enum fm_port port)
38 {
39 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
40 	u32 devdisr2 = in_be32(&gur->devdisr2);
41 
42 	return port_to_devdisr[port] & devdisr2;
43 }
44 
45 void fman_disable_port(enum fm_port port)
46 {
47 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
48 
49 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
50 }
51 
52 void fman_enable_port(enum fm_port port)
53 {
54 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
55 
56 	clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
57 }
58 
59 phy_interface_t fman_port_enet_if(enum fm_port port)
60 {
61 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
62 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
63 
64 	if (is_device_disabled(port))
65 		return PHY_INTERFACE_MODE_NONE;
66 
67 	if ((port == FM1_10GEC1 || port == FM1_10GEC2) &&
68 	    ((is_serdes_configured(XAUI_FM1_MAC9))	||
69 	     (is_serdes_configured(XAUI_FM1_MAC10))	||
70 	     (is_serdes_configured(XFI_FM1_MAC9))	||
71 	     (is_serdes_configured(XFI_FM1_MAC10))))
72 		return PHY_INTERFACE_MODE_XGMII;
73 
74 	if ((port == FM1_DTSEC9 || port == FM1_DTSEC10) &&
75 	    ((is_serdes_configured(XFI_FM1_MAC9)) ||
76 	     (is_serdes_configured(XFI_FM1_MAC10))))
77 		return PHY_INTERFACE_MODE_NONE;
78 
79 	if ((port == FM2_10GEC1 || port == FM2_10GEC2) &&
80 	    ((is_serdes_configured(XAUI_FM2_MAC9))	||
81 	     (is_serdes_configured(XAUI_FM2_MAC10))	||
82 	     (is_serdes_configured(XFI_FM2_MAC9))	||
83 	     (is_serdes_configured(XFI_FM2_MAC10))))
84 		return PHY_INTERFACE_MODE_XGMII;
85 
86 #define FSL_CORENET_RCWSR13_EC1			0x60000000 /* bits 417..418 */
87 #define FSL_CORENET_RCWSR13_EC1_FM2_DTSEC5_RGMII	0x00000000
88 #define FSL_CORENET_RCWSR13_EC1_FM2_GPIO		0x40000000
89 #define FSL_CORENET_RCWSR13_EC2			0x18000000 /* bits 419..420 */
90 #define FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII	0x00000000
91 #define FSL_CORENET_RCWSR13_EC2_FM2_DTSEC6_RGMII	0x08000000
92 #define FSL_CORENET_RCWSR13_EC2_FM1_GPIO		0x10000000
93 	/* handle RGMII first */
94 	if ((port == FM2_DTSEC5) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
95 		FSL_CORENET_RCWSR13_EC1_FM2_DTSEC5_RGMII))
96 		return PHY_INTERFACE_MODE_RGMII;
97 
98 	if ((port == FM1_DTSEC5) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
99 		FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII))
100 		return PHY_INTERFACE_MODE_RGMII;
101 
102 	if ((port == FM2_DTSEC6) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
103 		FSL_CORENET_RCWSR13_EC2_FM2_DTSEC6_RGMII))
104 		return PHY_INTERFACE_MODE_RGMII;
105 	switch (port) {
106 	case FM1_DTSEC1:
107 	case FM1_DTSEC2:
108 	case FM1_DTSEC3:
109 	case FM1_DTSEC4:
110 	case FM1_DTSEC5:
111 	case FM1_DTSEC6:
112 	case FM1_DTSEC9:
113 	case FM1_DTSEC10:
114 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
115 			return PHY_INTERFACE_MODE_SGMII;
116 		break;
117 	case FM2_DTSEC1:
118 	case FM2_DTSEC2:
119 	case FM2_DTSEC3:
120 	case FM2_DTSEC4:
121 	case FM2_DTSEC5:
122 	case FM2_DTSEC6:
123 	case FM2_DTSEC9:
124 	case FM2_DTSEC10:
125 		if (is_serdes_configured(SGMII_FM2_DTSEC1 + port - FM2_DTSEC1))
126 			return PHY_INTERFACE_MODE_SGMII;
127 		break;
128 	default:
129 		break;
130 	}
131 
132 	/* handle QSGMII */
133 	switch (port) {
134 	case FM1_DTSEC1:
135 	case FM1_DTSEC2:
136 	case FM1_DTSEC3:
137 	case FM1_DTSEC4:
138 		/* check lane G on SerDes1 */
139 		if (is_serdes_configured(QSGMII_FM1_A))
140 			return PHY_INTERFACE_MODE_QSGMII;
141 		break;
142 	case FM1_DTSEC5:
143 	case FM1_DTSEC6:
144 	case FM1_DTSEC9:
145 	case FM1_DTSEC10:
146 		/* check lane C on SerDes1 */
147 		if (is_serdes_configured(QSGMII_FM1_B))
148 			return PHY_INTERFACE_MODE_QSGMII;
149 		break;
150 	case FM2_DTSEC1:
151 	case FM2_DTSEC2:
152 	case FM2_DTSEC3:
153 	case FM2_DTSEC4:
154 		/* check lane G on SerDes2 */
155 		if (is_serdes_configured(QSGMII_FM2_A))
156 			return PHY_INTERFACE_MODE_QSGMII;
157 		break;
158 	case FM2_DTSEC5:
159 	case FM2_DTSEC6:
160 	case FM2_DTSEC9:
161 	case FM2_DTSEC10:
162 		/* check lane C on SerDes2 */
163 		if (is_serdes_configured(QSGMII_FM2_B))
164 			return PHY_INTERFACE_MODE_QSGMII;
165 		break;
166 	default:
167 		break;
168 	}
169 
170 	return PHY_INTERFACE_MODE_NONE;
171 }
172