xref: /openbmc/u-boot/drivers/net/fm/p5040.c (revision bf48fcb6)
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 }
114