xref: /openbmc/u-boot/drivers/net/fm/t2080.c (revision cbd2fba1)
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright 2012 Freescale Semiconductor, Inc.
4  *
5  * Shengzhou Liu <Shengzhou.Liu@freescale.com>
6  */
7 
8 #include <common.h>
9 #include <phy.h>
10 #include <fm_eth.h>
11 #include <asm/immap_85xx.h>
12 #include <asm/fsl_serdes.h>
13 
14 u32 port_to_devdisr[] = {
15 	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
16 	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
17 	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
18 	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
19 	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
20 	[FM1_DTSEC6] = FSL_CORENET_DEVDISR2_DTSEC1_6,
21 	[FM1_DTSEC9] = FSL_CORENET_DEVDISR2_DTSEC1_9,
22 	[FM1_DTSEC10] = FSL_CORENET_DEVDISR2_DTSEC1_10,
23 	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1_1,
24 	[FM1_10GEC2] = FSL_CORENET_DEVDISR2_10GEC1_2,
25 	[FM1_10GEC3] = FSL_CORENET_DEVDISR2_10GEC1_3,
26 	[FM1_10GEC4] = FSL_CORENET_DEVDISR2_10GEC1_4,
27 };
28 
29 static int is_device_disabled(enum fm_port port)
30 {
31 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
32 	u32 devdisr2 = in_be32(&gur->devdisr2);
33 
34 	return port_to_devdisr[port] & devdisr2;
35 }
36 
37 void fman_disable_port(enum fm_port port)
38 {
39 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
40 
41 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
42 }
43 
44 phy_interface_t fman_port_enet_if(enum fm_port port)
45 {
46 	ccsr_gur_t *gur = (void __iomem *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
47 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
48 
49 	if (is_device_disabled(port))
50 		return PHY_INTERFACE_MODE_NONE;
51 
52 	if ((port == FM1_10GEC1 || port == FM1_10GEC2) &&
53 	    ((is_serdes_configured(XAUI_FM1_MAC9))	||
54 	     (is_serdes_configured(XFI_FM1_MAC9))	||
55 	     (is_serdes_configured(XFI_FM1_MAC10))))
56 		return PHY_INTERFACE_MODE_XGMII;
57 
58 	if ((port == FM1_10GEC3 || port == FM1_10GEC4) &&
59 	    ((is_serdes_configured(XFI_FM1_MAC1))	||
60 	     (is_serdes_configured(XFI_FM1_MAC2))))
61 		return PHY_INTERFACE_MODE_XGMII;
62 
63 	if ((port == FM1_DTSEC3) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
64 		FSL_CORENET_RCWSR13_EC1_DTSEC3_RGMII))
65 		return PHY_INTERFACE_MODE_RGMII;
66 
67 	if ((port == FM1_DTSEC4) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
68 		FSL_CORENET_RCWSR13_EC2_DTSEC4_RGMII))
69 		return PHY_INTERFACE_MODE_RGMII;
70 
71 	if ((port == FM1_DTSEC10) && ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
72 		FSL_CORENET_RCWSR13_EC2_DTSEC10_RGMII))
73 		return PHY_INTERFACE_MODE_RGMII;
74 
75 	switch (port) {
76 	case FM1_DTSEC1:
77 	case FM1_DTSEC2:
78 	case FM1_DTSEC3:
79 	case FM1_DTSEC4:
80 	case FM1_DTSEC5:
81 	case FM1_DTSEC6:
82 	case FM1_DTSEC9:
83 	case FM1_DTSEC10:
84 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
85 			return PHY_INTERFACE_MODE_SGMII;
86 		break;
87 	default:
88 		return PHY_INTERFACE_MODE_NONE;
89 	}
90 
91 	return PHY_INTERFACE_MODE_NONE;
92 }
93