xref: /openbmc/u-boot/drivers/net/fm/t1040.c (revision e11ef3d2)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2013 Freescale Semiconductor, Inc.
4  */
5 #include <common.h>
6 #include <phy.h>
7 #include <fm_eth.h>
8 #include <asm/io.h>
9 #include <asm/immap_85xx.h>
10 #include <asm/fsl_serdes.h>
11 
12 phy_interface_t fman_port_enet_if(enum fm_port port)
13 {
14 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
15 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
16 
17 	/* handle RGMII first */
18 	if ((port == FM1_DTSEC2) &&
19 	    ((rcwsr13 & FSL_CORENET_RCWSR13_MAC2_GMII_SEL) ==
20 			FSL_CORENET_RCWSR13_MAC2_GMII_SEL_ENET_PORT)) {
21 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
22 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_RGMII)
23 			return PHY_INTERFACE_MODE_RGMII;
24 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
25 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_MII)
26 			return PHY_INTERFACE_MODE_MII;
27 	}
28 
29 	if ((port == FM1_DTSEC4) &&
30 	    ((rcwsr13 & FSL_CORENET_RCWSR13_MAC2_GMII_SEL) ==
31 			FSL_CORENET_RCWSR13_MAC2_GMII_SEL_L2_SWITCH)) {
32 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
33 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_RGMII)
34 			return PHY_INTERFACE_MODE_RGMII;
35 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
36 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_MII)
37 			return PHY_INTERFACE_MODE_MII;
38 	}
39 
40 	if (port == FM1_DTSEC5) {
41 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
42 				FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII)
43 			return PHY_INTERFACE_MODE_RGMII;
44 	}
45 
46 	switch (port) {
47 	case FM1_DTSEC1:
48 	case FM1_DTSEC2:
49 		if (is_serdes_configured(QSGMII_SW1_A + port - FM1_DTSEC1) ||
50 		    is_serdes_configured(SGMII_SW1_MAC1  + port - FM1_DTSEC1))
51 			return PHY_INTERFACE_MODE_QSGMII;
52 	case FM1_DTSEC3:
53 	case FM1_DTSEC4:
54 	case FM1_DTSEC5:
55 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
56 			return PHY_INTERFACE_MODE_SGMII;
57 		break;
58 	default:
59 		return PHY_INTERFACE_MODE_NONE;
60 	}
61 
62 	return PHY_INTERFACE_MODE_NONE;
63 }
64