xref: /openbmc/u-boot/drivers/net/fm/b4860.c (revision e9c847c3)
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 #include <hwconfig.h>
14 
15 u32 port_to_devdisr[] = {
16 	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
17 	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
18 	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
19 	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
20 	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
21 	[FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
22 	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
23 	[FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
24 };
25 
26 static int is_device_disabled(enum fm_port port)
27 {
28 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
29 	u32 devdisr2 = in_be32(&gur->devdisr2);
30 
31 	return port_to_devdisr[port] & devdisr2;
32 }
33 
34 void fman_disable_port(enum fm_port port)
35 {
36 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
37 
38 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
39 }
40 
41 void fman_enable_port(enum fm_port port)
42 {
43 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
44 
45 	clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
46 }
47 
48 phy_interface_t fman_port_enet_if(enum fm_port port)
49 {
50 #if defined(CONFIG_TARGET_B4860QDS) || defined(CONFIG_TARGET_B4420QDS)
51 	u32 serdes2_prtcl;
52 	char buffer[HWCONFIG_BUFFER_SIZE];
53 	char *buf = NULL;
54 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
55 #endif
56 
57 	if (is_device_disabled(port))
58 		return PHY_INTERFACE_MODE_NONE;
59 
60 	/*B4860 has two 10Gig Mac*/
61 	if ((port == FM1_10GEC1 || port == FM1_10GEC2)	&&
62 	    ((is_serdes_configured(XAUI_FM1_MAC9))	||
63 	     #if (!defined(CONFIG_TARGET_B4860QDS) && \
64 		  !defined(CONFIG_TARGET_B4R420QDS))
65 	     (is_serdes_configured(XFI_FM1_MAC9))	||
66 	     (is_serdes_configured(XFI_FM1_MAC10))	||
67 	     #endif
68 	     (is_serdes_configured(XAUI_FM1_MAC10))
69 	     ))
70 		return PHY_INTERFACE_MODE_XGMII;
71 
72 #if defined(CONFIG_TARGET_B4860QDS) || defined(CONFIG_TARGET_B4420QDS)
73 	serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
74 			FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
75 
76 	if (serdes2_prtcl) {
77 		serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
78 		switch (serdes2_prtcl) {
79 		case 0x80:
80 		case 0x81:
81 		case 0x82:
82 		case 0x83:
83 		case 0x84:
84 		case 0x85:
85 		case 0x86:
86 		case 0x87:
87 		case 0x88:
88 		case 0x89:
89 		case 0x8a:
90 		case 0x8b:
91 		case 0x8c:
92 		case 0x8d:
93 		case 0x8e:
94 		case 0xb1:
95 		case 0xb2:
96 			/*
97 			 * Extract hwconfig from environment since environment
98 			 * is not setup yet
99 			 */
100 			getenv_f("hwconfig", buffer, sizeof(buffer));
101 			buf = buffer;
102 
103 			/* check if XFI interface enable in hwconfig for 10g */
104 			if (hwconfig_subarg_cmp_f("fsl_b4860_serdes2",
105 						  "sfp_amc", "sfp", buf)) {
106 				if ((port == FM1_10GEC1 ||
107 				     port == FM1_10GEC2) &&
108 				    ((is_serdes_configured(XFI_FM1_MAC9)) ||
109 				    (is_serdes_configured(XFI_FM1_MAC10))))
110 					return PHY_INTERFACE_MODE_XGMII;
111 				else if ((port == FM1_DTSEC1) ||
112 					 (port == FM1_DTSEC2) ||
113 					 (port == FM1_DTSEC3) ||
114 					 (port == FM1_DTSEC4))
115 					return PHY_INTERFACE_MODE_NONE;
116 			}
117 		}
118 	}
119 #endif
120 
121 	/* Fix me need to handle RGMII here first */
122 
123 	switch (port) {
124 	case FM1_DTSEC1:
125 	case FM1_DTSEC2:
126 	case FM1_DTSEC3:
127 	case FM1_DTSEC4:
128 	case FM1_DTSEC5:
129 	case FM1_DTSEC6:
130 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
131 			return PHY_INTERFACE_MODE_SGMII;
132 		break;
133 	default:
134 		return PHY_INTERFACE_MODE_NONE;
135 	}
136 
137 	return PHY_INTERFACE_MODE_NONE;
138 }
139