1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
|
/*
* Copyright 2011 Freescale Semiconductor, Inc.
* Author: Mingkai Hu <Mingkai.hu@freescale.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* The RGMII PHYs are provided by the two on-board PHY. The SGMII PHYs
* are provided by the three on-board PHY or by the standard Freescale
* four-port SGMII riser card. We need to change the phy-handle in the
* kernel dts file to point to the correct PHY according to serdes mux
* and serdes protocol selection.
*/
#include <common.h>
#include <netdev.h>
#include <asm/fsl_serdes.h>
#include <fm_eth.h>
#include <fsl_mdio.h>
#include <malloc.h>
#include <asm/fsl_dtsec.h>
#include "cpld.h"
#include "../common/fman.h"
#ifdef CONFIG_FMAN_ENET
/*
* Mapping of all 18 SERDES lanes to board slots. A value of '0' here means
* that the mapping must be determined dynamically, or that the lane maps to
* something other than a board slot
*/
static u8 lane_to_slot[] = {
0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0
};
static int riser_phy_addr[] = {
CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR,
CONFIG_SYS_FM1_DTSEC2_RISER_PHY_ADDR,
CONFIG_SYS_FM1_DTSEC3_RISER_PHY_ADDR,
CONFIG_SYS_FM1_DTSEC4_RISER_PHY_ADDR,
};
/*
* Initialize the lane_to_slot[] array.
*
* On the P2040RDB board the mapping is controlled by CPLD register.
*/
static void initialize_lane_to_slot(void)
{
u8 mux = CPLD_READ(serdes_mux);
lane_to_slot[6] = (mux & SERDES_MUX_LANE_6_MASK) ? 0 : 1;
lane_to_slot[10] = (mux & SERDES_MUX_LANE_A_MASK) ? 0 : 2;
lane_to_slot[12] = (mux & SERDES_MUX_LANE_C_MASK) ? 0 : 2;
lane_to_slot[13] = (mux & SERDES_MUX_LANE_D_MASK) ? 0 : 2;
}
/*
* Given the following ...
*
* 1) A pointer to an Fman Ethernet node (as identified by the 'compat'
* compatible string and 'addr' physical address)
*
* 2) An Fman port
*
* ... update the phy-handle property of the Ethernet node to point to the
* right PHY. This assumes that we already know the PHY for each port.
*
* The offset of the Fman Ethernet node is also passed in for convenience, but
* it is not used, and we recalculate the offset anyway.
*
* Note that what we call "Fman ports" (enum fm_port) is really an Fman MAC.
* Inside the Fman, "ports" are things that connect to MACs. We only call them
* ports in U-Boot because on previous Ethernet devices (e.g. Gianfar), MACs
* and ports are the same thing.
*
*/
void board_ft_fman_fixup_port(void *fdt, char *compat, phys_addr_t addr,
enum fm_port port, int offset)
{
phy_interface_t intf = fm_info_get_enet_if(port);
char phy[16];
/* The RGMII PHY is identified by the MAC connected to it */
if (intf == PHY_INTERFACE_MODE_RGMII) {
sprintf(phy, "phy_rgmii_%u", port == FM1_DTSEC5 ? 0 : 1);
fdt_set_phy_handle(fdt, compat, addr, phy);
}
/* The SGMII PHY is identified by the MAC connected to it */
if (intf == PHY_INTERFACE_MODE_SGMII) {
int lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + port);
u8 slot;
if (lane < 0)
return;
slot = lane_to_slot[lane];
if (slot) {
sprintf(phy, "phy_sgmii_%x",
CONFIG_SYS_FM1_DTSEC1_RISER_PHY_ADDR
+ (port - FM1_DTSEC1));
fdt_set_phy_handle(fdt, compat, addr, phy);
} else {
sprintf(phy, "phy_sgmii_%x",
CONFIG_SYS_FM1_DTSEC1_PHY_ADDR
+ (port - FM1_DTSEC1));
fdt_set_phy_handle(fdt, compat, addr, phy);
}
}
if (intf == PHY_INTERFACE_MODE_XGMII) {
/* XAUI */
int lane = serdes_get_first_lane(XAUI_FM1);
if (lane >= 0) {
/* The XAUI PHY is identified by the slot */
sprintf(phy, "phy_xgmii_%u", lane_to_slot[lane]);
fdt_set_phy_handle(fdt, compat, addr, phy);
}
}
}
#endif /* #ifdef CONFIG_FMAN_ENET */
#define CPLD_LANE_A_SEL 0x1
#define CPLD_LANE_G_SEL 0x2
#define CPLD_LANE_C_SEL 0x4
#define CPLD_LANE_D_SEL 0x8
int board_eth_init(bd_t *bis)
{
#ifdef CONFIG_FMAN_ENET
struct fsl_pq_mdio_info dtsec_mdio_info;
struct tgec_mdio_info tgec_mdio_info;
unsigned int i, slot;
int lane;
ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
int srds_prtcl = (in_be32(&gur->rcwsr[4]) &
FSL_CORENET_RCWSR4_SRDS_PRTCL) >> 26;
u8 mux = CPLD_READ(serdes_mux);
printf("Initializing Fman\n");
initialize_lane_to_slot();
dtsec_mdio_info.regs =
(struct tsec_mii_mng *)CONFIG_SYS_FM1_DTSEC1_MDIO_ADDR;
dtsec_mdio_info.name = DEFAULT_FM_MDIO_NAME;
/* Register the real 1G MDIO bus */
fsl_pq_mdio_init(bis, &dtsec_mdio_info);
tgec_mdio_info.regs =
(struct tgec_mdio_controller *)CONFIG_SYS_FM1_TGEC_MDIO_ADDR;
tgec_mdio_info.name = DEFAULT_FM_TGEC_MDIO_NAME;
/* Register the real 10G MDIO bus */
fm_tgec_mdio_init(bis, &tgec_mdio_info);
/*
* Program the three on-board SGMII PHY addresses. If the SGMII Riser
* card used, we'll override the PHY address later. For any DTSEC that
* is RGMII, we'll also override its PHY address later. We assume that
* DTSEC4 and DTSEC5 are used for RGMII.
*/
fm_info_set_phy_address(FM1_DTSEC1, CONFIG_SYS_FM1_DTSEC1_PHY_ADDR);
fm_info_set_phy_address(FM1_DTSEC2, CONFIG_SYS_FM1_DTSEC2_PHY_ADDR);
fm_info_set_phy_address(FM1_DTSEC3, CONFIG_SYS_FM1_DTSEC3_PHY_ADDR);
mux &= ~(CPLD_LANE_A_SEL | CPLD_LANE_C_SEL | CPLD_LANE_D_SEL);
switch (srds_prtcl) {
case 0x2:
case 0xf:
mux &= ~CPLD_LANE_G_SEL;
break;
case 0x5:
case 0x9:
case 0xa:
case 0x17:
mux |= CPLD_LANE_G_SEL;
break;
case 0x14:
mux = (mux & (~CPLD_LANE_G_SEL)) | CPLD_LANE_A_SEL;
break;
case 0x8:
case 0x16:
case 0x19:
case 0x1a:
mux |= CPLD_LANE_G_SEL | CPLD_LANE_C_SEL | CPLD_LANE_D_SEL;
break;
case 0x1c:
mux |= CPLD_LANE_G_SEL | CPLD_LANE_A_SEL;
break;
default:
printf("Fman:Unsupported SerDes Protocol 0x%02x\n", srds_prtcl);
break;
}
CPLD_WRITE(serdes_mux, mux);
for (i = FM1_DTSEC1; i < FM1_DTSEC1 + CONFIG_SYS_NUM_FM1_DTSEC; i++) {
int idx = i - FM1_DTSEC1;
switch (fm_info_get_enet_if(i)) {
case PHY_INTERFACE_MODE_SGMII:
lane = serdes_get_first_lane(SGMII_FM1_DTSEC1 + idx);
if (lane < 0)
break;
slot = lane_to_slot[lane];
if (slot)
fm_info_set_phy_address(i, riser_phy_addr[i]);
break;
case PHY_INTERFACE_MODE_RGMII:
/* Only DTSEC4 and DTSEC5 can be routed to RGMII */
fm_info_set_phy_address(i, i == FM1_DTSEC5 ?
CONFIG_SYS_FM1_DTSEC5_PHY_ADDR :
CONFIG_SYS_FM1_DTSEC4_PHY_ADDR);
break;
default:
printf("Fman1: DTSEC%u set to unknown interface %i\n",
idx + 1, fm_info_get_enet_if(i));
break;
}
fm_info_set_mdio(i,
miiphy_get_dev_by_name(DEFAULT_FM_MDIO_NAME));
}
lane = serdes_get_first_lane(XAUI_FM1);
if (lane >= 0) {
slot = lane_to_slot[lane];
if (slot)
fm_info_set_phy_address(FM1_10GEC1,
CONFIG_SYS_FM1_10GEC1_PHY_ADDR);
}
fm_info_set_mdio(FM1_10GEC1,
miiphy_get_dev_by_name(DEFAULT_FM_TGEC_MDIO_NAME));
cpu_eth_init(bis);
#endif
return pci_eth_init(bis);
}
|
