xref: /openbmc/u-boot/drivers/net/fm/t1040.c (revision 6e87ae1c)
1 /*
2  * Copyright 2013 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
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 
13 phy_interface_t fman_port_enet_if(enum fm_port port)
14 {
15 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
16 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
17 
18 	/* handle RGMII first */
19 	if ((port == FM1_DTSEC2) &&
20 	    ((rcwsr13 & FSL_CORENET_RCWSR13_MAC2_GMII_SEL) ==
21 			FSL_CORENET_RCWSR13_MAC2_GMII_SEL_ENET_PORT)) {
22 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
23 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_RGMII)
24 			return PHY_INTERFACE_MODE_RGMII;
25 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
26 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_MII)
27 			return PHY_INTERFACE_MODE_MII;
28 	}
29 
30 	if ((port == FM1_DTSEC4) &&
31 	    ((rcwsr13 & FSL_CORENET_RCWSR13_MAC2_GMII_SEL) ==
32 			FSL_CORENET_RCWSR13_MAC2_GMII_SEL_L2_SWITCH)) {
33 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
34 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_RGMII)
35 			return PHY_INTERFACE_MODE_RGMII;
36 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
37 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_MII)
38 			return PHY_INTERFACE_MODE_MII;
39 	}
40 
41 	if (port == FM1_DTSEC5) {
42 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
43 				FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII)
44 			return PHY_INTERFACE_MODE_RGMII;
45 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
46 				FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_MII)
47 			return PHY_INTERFACE_MODE_MII;
48 	}
49 
50 	switch (port) {
51 	case FM1_DTSEC1:
52 	case FM1_DTSEC2:
53 		if (is_serdes_configured(QSGMII_SW1_A + port - FM1_DTSEC1) ||
54 		    is_serdes_configured(SGMII_SW1_MAC1  + port - FM1_DTSEC1))
55 			return PHY_INTERFACE_MODE_QSGMII;
56 	case FM1_DTSEC3:
57 	case FM1_DTSEC4:
58 	case FM1_DTSEC5:
59 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
60 			return PHY_INTERFACE_MODE_SGMII;
61 		break;
62 	default:
63 		return PHY_INTERFACE_MODE_NONE;
64 	}
65 
66 	return PHY_INTERFACE_MODE_NONE;
67 }
68