xref: /openbmc/u-boot/drivers/net/fm/p5040.c (revision baefb63a)
1 /*
2  * Copyright 2011 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 u32 port_to_devdisr[] = {
14 	[FM1_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC1_1,
15 	[FM1_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC1_2,
16 	[FM1_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC1_3,
17 	[FM1_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC1_4,
18 	[FM1_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC1_5,
19 	[FM1_10GEC1] = FSL_CORENET_DEVDISR2_10GEC1,
20 	[FM2_DTSEC1] = FSL_CORENET_DEVDISR2_DTSEC2_1,
21 	[FM2_DTSEC2] = FSL_CORENET_DEVDISR2_DTSEC2_2,
22 	[FM2_DTSEC3] = FSL_CORENET_DEVDISR2_DTSEC2_3,
23 	[FM2_DTSEC4] = FSL_CORENET_DEVDISR2_DTSEC2_4,
24 	[FM2_DTSEC5] = FSL_CORENET_DEVDISR2_DTSEC2_5,
25 	[FM2_10GEC1] = FSL_CORENET_DEVDISR2_10GEC2,
26 };
27 
28 static int is_device_disabled(enum fm_port port)
29 {
30 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
31 	u32 devdisr2 = in_be32(&gur->devdisr2);
32 
33 	return port_to_devdisr[port] & devdisr2;
34 }
35 
36 void fman_disable_port(enum fm_port port)
37 {
38 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
39 
40 	/* don't allow disabling of DTSEC1 as its needed for MDIO */
41 	if (port == FM1_DTSEC1)
42 		return;
43 
44 	setbits_be32(&gur->devdisr2, port_to_devdisr[port]);
45 }
46 
47 void fman_enable_port(enum fm_port port)
48 {
49 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
50 
51 	clrbits_be32(&gur->devdisr2, port_to_devdisr[port]);
52 }
53 
54 phy_interface_t fman_port_enet_if(enum fm_port port)
55 {
56 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
57 	u32 rcwsr11 = in_be32(&gur->rcwsr[11]);
58 
59 	if (is_device_disabled(port))
60 		return PHY_INTERFACE_MODE_NONE;
61 
62 	if ((port == FM1_10GEC1) && (is_serdes_configured(XAUI_FM1)))
63 		return PHY_INTERFACE_MODE_XGMII;
64 
65 	if ((port == FM2_10GEC1) && (is_serdes_configured(XAUI_FM2)))
66 		return PHY_INTERFACE_MODE_XGMII;
67 
68 	/* handle RGMII first */
69 	if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
70 		FSL_CORENET_RCWSR11_EC1_FM1_DTSEC5_RGMII))
71 		return PHY_INTERFACE_MODE_RGMII;
72 
73 	if ((port == FM1_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC1) ==
74 		FSL_CORENET_RCWSR11_EC1_FM1_DTSEC5_MII))
75 		return PHY_INTERFACE_MODE_MII;
76 
77 	if ((port == FM2_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
78 		FSL_CORENET_RCWSR11_EC2_FM2_DTSEC5_RGMII))
79 		return PHY_INTERFACE_MODE_RGMII;
80 
81 	if ((port == FM2_DTSEC5) && ((rcwsr11 & FSL_CORENET_RCWSR11_EC2) ==
82 		FSL_CORENET_RCWSR11_EC2_FM2_DTSEC5_MII))
83 		return PHY_INTERFACE_MODE_MII;
84 
85 	switch (port) {
86 	case FM1_DTSEC1:
87 	case FM1_DTSEC2:
88 	case FM1_DTSEC3:
89 	case FM1_DTSEC4:
90 	case FM1_DTSEC5:
91 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
92 			return PHY_INTERFACE_MODE_SGMII;
93 		break;
94 	case FM2_DTSEC1:
95 	case FM2_DTSEC2:
96 	case FM2_DTSEC3:
97 	case FM2_DTSEC4:
98 	case FM2_DTSEC5:
99 		if (is_serdes_configured(SGMII_FM2_DTSEC1 + port - FM2_DTSEC1))
100 			return PHY_INTERFACE_MODE_SGMII;
101 		break;
102 	default:
103 		return PHY_INTERFACE_MODE_NONE;
104 	}
105 
106 	return PHY_INTERFACE_MODE_NONE;
107 }
108