xref: /openbmc/u-boot/drivers/net/fm/ls1046.c (revision 76b00aca)
1 /*
2  * Copyright 2016 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/arch/fsl_serdes.h>
11 
12 #define FSL_CHASSIS2_RCWSR13_EC1		0xe0000000 /* bits 416..418 */
13 #define FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII	0x00000000
14 #define FSL_CHASSIS2_RCWSR13_EC1_GPIO		0x20000000
15 #define FSL_CHASSIS2_RCWSR13_EC1_FTM		0xa0000000
16 #define FSL_CHASSIS2_RCWSR13_EC2		0x1c000000 /* bits 419..421 */
17 #define FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII	0x00000000
18 #define FSL_CHASSIS2_RCWSR13_EC2_GPIO		0x04000000
19 #define FSL_CHASSIS2_RCWSR13_EC2_1588		0x08000000
20 #define FSL_CHASSIS2_RCWSR13_EC2_FTM		0x14000000
21 
22 u32 port_to_devdisr[] = {
23 	[FM1_DTSEC1] = FSL_CHASSIS2_DEVDISR2_DTSEC1_1,
24 	[FM1_DTSEC2] = FSL_CHASSIS2_DEVDISR2_DTSEC1_2,
25 	[FM1_DTSEC3] = FSL_CHASSIS2_DEVDISR2_DTSEC1_3,
26 	[FM1_DTSEC4] = FSL_CHASSIS2_DEVDISR2_DTSEC1_4,
27 	[FM1_DTSEC5] = FSL_CHASSIS2_DEVDISR2_DTSEC1_5,
28 	[FM1_DTSEC6] = FSL_CHASSIS2_DEVDISR2_DTSEC1_6,
29 	[FM1_DTSEC9] = FSL_CHASSIS2_DEVDISR2_DTSEC1_9,
30 	[FM1_DTSEC10] = FSL_CHASSIS2_DEVDISR2_DTSEC1_10,
31 	[FM1_10GEC1] = FSL_CHASSIS2_DEVDISR2_10GEC1_1,
32 	[FM1_10GEC2] = FSL_CHASSIS2_DEVDISR2_10GEC1_2,
33 	[FM1_10GEC3] = FSL_CHASSIS2_DEVDISR2_10GEC1_3,
34 	[FM1_10GEC4] = FSL_CHASSIS2_DEVDISR2_10GEC1_4,
35 };
36 
37 static int is_device_disabled(enum fm_port port)
38 {
39 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
40 	u32 devdisr2 = in_be32(&gur->devdisr2);
41 
42 	return port_to_devdisr[port] & devdisr2;
43 }
44 
45 void fman_disable_port(enum fm_port port)
46 {
47 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
48 
49 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
50 }
51 
52 phy_interface_t fman_port_enet_if(enum fm_port port)
53 {
54 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
55 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
56 
57 	if (is_device_disabled(port))
58 		return PHY_INTERFACE_MODE_NONE;
59 
60 	if ((port == FM1_10GEC1) && (is_serdes_configured(XFI_FM1_MAC9)))
61 		return PHY_INTERFACE_MODE_XGMII;
62 
63 	if ((port == FM1_DTSEC9) && (is_serdes_configured(XFI_FM1_MAC9)))
64 		return PHY_INTERFACE_MODE_NONE;
65 
66 	if ((port == FM1_10GEC2) && (is_serdes_configured(XFI_FM1_MAC10)))
67 		return PHY_INTERFACE_MODE_XGMII;
68 
69 	if ((port == FM1_DTSEC10) && (is_serdes_configured(XFI_FM1_MAC10)))
70 		return PHY_INTERFACE_MODE_NONE;
71 
72 	if (port == FM1_DTSEC3)
73 		if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC1) ==
74 				FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII)
75 			return PHY_INTERFACE_MODE_RGMII;
76 
77 	if (port == FM1_DTSEC4)
78 		if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC2) ==
79 				FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII)
80 			return PHY_INTERFACE_MODE_RGMII;
81 
82 	/* handle SGMII, only MAC 2/5/6/9/10 available */
83 	switch (port) {
84 	case FM1_DTSEC2:
85 	case FM1_DTSEC5:
86 	case FM1_DTSEC6:
87 	case FM1_DTSEC9:
88 	case FM1_DTSEC10:
89 		if (is_serdes_configured(SGMII_FM1_DTSEC2 + port - FM1_DTSEC2))
90 			return PHY_INTERFACE_MODE_SGMII;
91 		break;
92 	default:
93 		break;
94 	}
95 
96 	/* handle 2.5G SGMII, only MAC 5/9/10 available */
97 	switch (port) {
98 	case FM1_DTSEC5:
99 	case FM1_DTSEC9:
100 	case FM1_DTSEC10:
101 		if (is_serdes_configured(SGMII_2500_FM1_DTSEC5 +
102 					 port - FM1_DTSEC5))
103 			return PHY_INTERFACE_MODE_SGMII_2500;
104 		break;
105 	default:
106 		break;
107 	}
108 
109 	/* handle QSGMII, only MAC 1/5/6/10 available */
110 	switch (port) {
111 	case FM1_DTSEC1:
112 	case FM1_DTSEC5:
113 	case FM1_DTSEC6:
114 	case FM1_DTSEC10:
115 		if (is_serdes_configured(QSGMII_FM1_A))
116 			return PHY_INTERFACE_MODE_QSGMII;
117 		break;
118 	default:
119 		break;
120 	}
121 
122 	return PHY_INTERFACE_MODE_NONE;
123 }
124