xref: /openbmc/u-boot/drivers/net/fm/b4860.c (revision c9aa831e)
1 /*
2  * Copyright 2012 Freescale Semiconductor, Inc.
3  *	Roy Zang <tie-fei.zang@freescale.com>
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation; either version 2 of
8  * the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18  * MA 02111-1307 USA
19  */
20 #include <common.h>
21 #include <phy.h>
22 #include <fm_eth.h>
23 #include <asm/io.h>
24 #include <asm/immap_85xx.h>
25 #include <asm/fsl_serdes.h>
26 
27 u32 port_to_devdisr[] = {
28 	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
29 	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
30 	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
31 	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
32 	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
33 	[FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
34 	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
35 	[FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
36 };
37 
38 static int is_device_disabled(enum fm_port port)
39 {
40 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
41 	u32 devdisr2 = in_be32(&gur->devdisr2);
42 
43 	return port_to_devdisr[port] & devdisr2;
44 }
45 
46 void fman_disable_port(enum fm_port port)
47 {
48 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
49 
50 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
51 }
52 
53 phy_interface_t fman_port_enet_if(enum fm_port port)
54 {
55 	if (is_device_disabled(port))
56 		return PHY_INTERFACE_MODE_NONE;
57 
58 	if ((port == FM1_10GEC1 || port == FM1_10GEC2)
59 			&& (is_serdes_configured(XAUI_FM1)))
60 		return PHY_INTERFACE_MODE_XGMII;
61 
62 	/* Fix me need to handle RGMII here first */
63 
64 	switch (port) {
65 	case FM1_DTSEC1:
66 	case FM1_DTSEC2:
67 	case FM1_DTSEC3:
68 	case FM1_DTSEC4:
69 	case FM1_DTSEC5:
70 	case FM1_DTSEC6:
71 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
72 			return PHY_INTERFACE_MODE_SGMII;
73 		break;
74 	default:
75 		return PHY_INTERFACE_MODE_NONE;
76 	}
77 
78 	return PHY_INTERFACE_MODE_NONE;
79 }
80