xref: /openbmc/u-boot/drivers/net/fm/b4860.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 #include <hwconfig.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_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
22 	[FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
23 };
24 
25 static int is_device_disabled(enum fm_port port)
26 {
27 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
28 	u32 devdisr2 = in_be32(&gur->devdisr2);
29 
30 	return port_to_devdisr[port] & devdisr2;
31 }
32 
33 void fman_disable_port(enum fm_port port)
34 {
35 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
36 
37 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
38 }
39 
40 void fman_enable_port(enum fm_port port)
41 {
42 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
43 
44 	clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
45 }
46 
47 phy_interface_t fman_port_enet_if(enum fm_port port)
48 {
49 #if defined(CONFIG_TARGET_B4860QDS) || defined(CONFIG_TARGET_B4420QDS)
50 	u32 serdes2_prtcl;
51 	char buffer[HWCONFIG_BUFFER_SIZE];
52 	char *buf = NULL;
53 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
54 #endif
55 
56 	if (is_device_disabled(port))
57 		return PHY_INTERFACE_MODE_NONE;
58 
59 	/*B4860 has two 10Gig Mac*/
60 	if ((port == FM1_10GEC1 || port == FM1_10GEC2)	&&
61 	    ((is_serdes_configured(XAUI_FM1_MAC9))	||
62 	     #if (!defined(CONFIG_TARGET_B4860QDS) && \
63 		  !defined(CONFIG_TARGET_B4R420QDS))
64 	     (is_serdes_configured(XFI_FM1_MAC9))	||
65 	     (is_serdes_configured(XFI_FM1_MAC10))	||
66 	     #endif
67 	     (is_serdes_configured(XAUI_FM1_MAC10))
68 	     ))
69 		return PHY_INTERFACE_MODE_XGMII;
70 
71 #if defined(CONFIG_TARGET_B4860QDS) || defined(CONFIG_TARGET_B4420QDS)
72 	serdes2_prtcl = in_be32(&gur->rcwsr[4]) &
73 			FSL_CORENET2_RCWSR4_SRDS2_PRTCL;
74 
75 	if (serdes2_prtcl) {
76 		serdes2_prtcl >>= FSL_CORENET2_RCWSR4_SRDS2_PRTCL_SHIFT;
77 		switch (serdes2_prtcl) {
78 		case 0x80:
79 		case 0x81:
80 		case 0x82:
81 		case 0x83:
82 		case 0x84:
83 		case 0x85:
84 		case 0x86:
85 		case 0x87:
86 		case 0x88:
87 		case 0x89:
88 		case 0x8a:
89 		case 0x8b:
90 		case 0x8c:
91 		case 0x8d:
92 		case 0x8e:
93 		case 0xb1:
94 		case 0xb2:
95 			/*
96 			 * Extract hwconfig from environment since environment
97 			 * is not setup yet
98 			 */
99 			env_get_f("hwconfig", buffer, sizeof(buffer));
100 			buf = buffer;
101 
102 			/* check if XFI interface enable in hwconfig for 10g */
103 			if (hwconfig_subarg_cmp_f("fsl_b4860_serdes2",
104 						  "sfp_amc", "sfp", buf)) {
105 				if ((port == FM1_10GEC1 ||
106 				     port == FM1_10GEC2) &&
107 				    ((is_serdes_configured(XFI_FM1_MAC9)) ||
108 				    (is_serdes_configured(XFI_FM1_MAC10))))
109 					return PHY_INTERFACE_MODE_XGMII;
110 				else if ((port == FM1_DTSEC1) ||
111 					 (port == FM1_DTSEC2) ||
112 					 (port == FM1_DTSEC3) ||
113 					 (port == FM1_DTSEC4))
114 					return PHY_INTERFACE_MODE_NONE;
115 			}
116 		}
117 	}
118 #endif
119 
120 	/* Fix me need to handle RGMII here first */
121 
122 	switch (port) {
123 	case FM1_DTSEC1:
124 	case FM1_DTSEC2:
125 	case FM1_DTSEC3:
126 	case FM1_DTSEC4:
127 	case FM1_DTSEC5:
128 	case FM1_DTSEC6:
129 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
130 			return PHY_INTERFACE_MODE_SGMII;
131 		break;
132 	default:
133 		return PHY_INTERFACE_MODE_NONE;
134 	}
135 
136 	return PHY_INTERFACE_MODE_NONE;
137 }
138