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1 /*
2  * Copyright 2011 Freescale Semiconductor, Inc.
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of
7  * the License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
17  * MA 02111-1307 USA
18  */
19 #include <common.h>
20 #include <phy.h>
21 #include <fm_eth.h>
22 #include <asm/io.h>
23 #include <asm/immap_85xx.h>
24 #include <asm/fsl_serdes.h>
25
26 u32 port_to_devdisr[] = {
27         [FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
28         [FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
29         [FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
30         [FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
31         [FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
32         [FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1,
33         [FM2_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC2_1,
34         [FM2_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC2_2,
35         [FM2_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC2_3,
36         [FM2_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC2_4,
37         [FM2_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC2_5,
38         [FM2_10GEC1] = FSL_CORENET_DEVDISR2_10GEC2,
39 };
40
41 static int is_device_disabled(enum fm_port port)
42 {
43         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
44         u32 devdisr2 = in_be32(&gur->devdisr2);
45
46         return port_to_devdisr[port] & devdisr2;
47 }
48
49 void fman_disable_port(enum fm_port port)
50 {
51         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
52
53         /* don't allow disabling of DTSEC1 as its needed for MDIO */
54         if (port == FM1_DTSEC1)
55                 return;
56
57         setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
58 }
59
60 phy_interface_t fman_port_enet_if(enum fm_port port)
61 {
62         ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
63         u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
64
65         if (is_device_disabled(port))
66                 return PHY_INTERFACE_MODE_NONE;
67
68         if ((port == FM1_10GEC1) && (is_serdes_configured(XAUI_FM1)))
69                 return PHY_INTERFACE_MODE_XGMII;
70
71         if ((port == FM2_10GEC1) && (is_serdes_configured(XAUI_FM2)))
72                 return PHY_INTERFACE_MODE_XGMII;
73
74         /* handle RGMII first */
75         if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
76                 FSL_CORENET_RCWSR11_EC1_FM1_DTSEC5_RGMII))
77                 return PHY_INTERFACE_MODE_RGMII;
78
79         if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
80                 FSL_CORENET_RCWSR11_EC1_FM1_DTSEC5_MII))
81                 return PHY_INTERFACE_MODE_MII;
82
83         if ((port == FM2_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
84                 FSL_CORENET_RCWSR11_EC2_FM2_DTSEC5_RGMII))
85                 return PHY_INTERFACE_MODE_RGMII;
86
87         if ((port == FM2_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
88                 FSL_CORENET_RCWSR11_EC2_FM2_DTSEC5_MII))
89                 return PHY_INTERFACE_MODE_MII;
90
91         switch (port) {
92         case FM1_DTSEC1:
93         case FM1_DTSEC2:
94         case FM1_DTSEC3:
95         case FM1_DTSEC4:
96         case FM1_DTSEC5:
97                 if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
98                         return PHY_INTERFACE_MODE_SGMII;
99                 break;
100         case FM2_DTSEC1:
101         case FM2_DTSEC2:
102         case FM2_DTSEC3:
103         case FM2_DTSEC4:
104         case FM2_DTSEC5:
105                 if (is_serdes_configured(SGMII_FM2_DTSEC1 + port - FM2_DTSEC1))
106                         return PHY_INTERFACE_MODE_SGMII;
107                 break;
108         default:
109                 return PHY_INTERFACE_MODE_NONE;
110         }
111
112         return PHY_INTERFACE_MODE_NONE;
113 }