1 /*-
2 * Copyright (c) 2012 Semihalf.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/param.h>
28 #include <sys/systm.h>
29 #include <sys/kernel.h>
30 #include <sys/bus.h>
31 #include <sys/module.h>
32 #include <sys/rman.h>
33 #include <sys/socket.h>
34
35 #include <machine/bus.h>
36
37 #include <powerpc/mpc85xx/mpc85xx.h>
38
39 #include <net/if.h>
40 #include <net/if_media.h>
41
42 #include <dev/mii/mii.h>
43 #include <dev/mii/miivar.h>
44
45 #include <dev/ofw/ofw_bus.h>
46 #include <dev/ofw/ofw_bus_subr.h>
47 #include <dev/ofw/openfirm.h>
48
49 #include "miibus_if.h"
50
51 #include <contrib/ncsw/inc/Peripherals/fm_port_ext.h>
52 #include <contrib/ncsw/inc/xx_ext.h>
53
54 #include "if_dtsec.h"
55 #include "fman.h"
56
57
58 static int dtsec_fdt_probe(device_t dev);
59 static int dtsec_fdt_attach(device_t dev);
60
61 static device_method_t dtsec_methods[] = {
62 /* Device interface */
63 DEVMETHOD(device_probe, dtsec_fdt_probe),
64 DEVMETHOD(device_attach, dtsec_fdt_attach),
65 DEVMETHOD(device_detach, dtsec_detach),
66
67 DEVMETHOD(device_shutdown, dtsec_shutdown),
68 DEVMETHOD(device_suspend, dtsec_suspend),
69 DEVMETHOD(device_resume, dtsec_resume),
70
71 /* Bus interface */
72 DEVMETHOD(bus_print_child, bus_generic_print_child),
73 DEVMETHOD(bus_driver_added, bus_generic_driver_added),
74
75 /* MII interface */
76 DEVMETHOD(miibus_readreg, dtsec_miibus_readreg),
77 DEVMETHOD(miibus_writereg, dtsec_miibus_writereg),
78 DEVMETHOD(miibus_statchg, dtsec_miibus_statchg),
79
80 { 0, 0 }
81 };
82
83 static driver_t dtsec_driver = {
84 "dtsec",
85 dtsec_methods,
86 sizeof(struct dtsec_softc),
87 };
88
89 DRIVER_MODULE(dtsec, fman, dtsec_driver, 0, 0);
90 DRIVER_MODULE(miibus, dtsec, miibus_driver, 0, 0);
91 MODULE_DEPEND(dtsec, ether, 1, 1, 1);
92 MODULE_DEPEND(dtsec, miibus, 1, 1, 1);
93
94 static int
dtsec_fdt_probe(device_t dev)95 dtsec_fdt_probe(device_t dev)
96 {
97
98 if (!ofw_bus_status_okay(dev))
99 return (ENXIO);
100
101 if (!ofw_bus_is_compatible(dev, "fsl,fman-dtsec") &&
102 !ofw_bus_is_compatible(dev, "fsl,fman-xgec"))
103 return (ENXIO);
104
105 device_set_desc(dev, "Freescale Data Path Triple Speed Ethernet "
106 "Controller");
107
108 return (BUS_PROBE_DEFAULT);
109 }
110
111 static int
dtsec_fdt_attach(device_t dev)112 dtsec_fdt_attach(device_t dev)
113 {
114 struct dtsec_softc *sc;
115 device_t phy_dev;
116 phandle_t enet_node, phy_node;
117 phandle_t fman_rxtx_node[2];
118 char phy_type[6];
119 pcell_t fman_tx_cell, mac_id;
120 int rid;
121
122 sc = device_get_softc(dev);
123 enet_node = ofw_bus_get_node(dev);
124
125 if (OF_getprop(enet_node, "local-mac-address",
126 (void *)sc->sc_mac_addr, 6) == -1) {
127 device_printf(dev,
128 "Could not load local-mac-addr property from DTS\n");
129 return (ENXIO);
130 }
131
132 /* Get link speed */
133 if (ofw_bus_is_compatible(dev, "fsl,fman-dtsec") != 0)
134 sc->sc_eth_dev_type = ETH_DTSEC;
135 else if (ofw_bus_is_compatible(dev, "fsl,fman-xgec") != 0)
136 sc->sc_eth_dev_type = ETH_10GSEC;
137 else
138 return(ENXIO);
139
140 /* Get PHY address */
141 if (OF_getprop(enet_node, "phy-handle", (void *)&phy_node,
142 sizeof(phy_node)) <= 0)
143 return (ENXIO);
144
145 phy_node = OF_node_from_xref(phy_node);
146
147 if (OF_getprop(phy_node, "reg", (void *)&sc->sc_phy_addr,
148 sizeof(sc->sc_phy_addr)) <= 0)
149 return (ENXIO);
150
151 phy_dev = OF_device_from_xref(OF_parent(phy_node));
152
153 if (phy_dev == NULL) {
154 device_printf(dev, "No PHY found.\n");
155 return (ENXIO);
156 }
157
158 sc->sc_mdio = phy_dev;
159
160 /* Get MAC memory offset in SoC */
161 rid = 0;
162 sc->sc_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
163 if (sc->sc_mem == NULL)
164 return (ENXIO);
165
166 /* Get PHY connection type */
167 if (OF_getprop(enet_node, "phy-connection-type", (void *)phy_type,
168 sizeof(phy_type)) <= 0)
169 return (ENXIO);
170
171 if (!strcmp(phy_type, "sgmii"))
172 sc->sc_mac_enet_mode = e_ENET_MODE_SGMII_1000;
173 else if (!strcmp(phy_type, "rgmii"))
174 sc->sc_mac_enet_mode = e_ENET_MODE_RGMII_1000;
175 else if (!strcmp(phy_type, "xgmii"))
176 /* We set 10 Gigabit mode flag however we don't support it */
177 sc->sc_mac_enet_mode = e_ENET_MODE_XGMII_10000;
178 else
179 return (ENXIO);
180
181 if (OF_getencprop(enet_node, "cell-index",
182 (void *)&mac_id, sizeof(mac_id)) <= 0)
183 return (ENXIO);
184 sc->sc_eth_id = mac_id;
185
186 /* Get RX/TX port handles */
187 if (OF_getprop(enet_node, "fsl,fman-ports", (void *)fman_rxtx_node,
188 sizeof(fman_rxtx_node)) <= 0)
189 return (ENXIO);
190
191 if (fman_rxtx_node[0] == 0)
192 return (ENXIO);
193
194 if (fman_rxtx_node[1] == 0)
195 return (ENXIO);
196
197 fman_rxtx_node[0] = OF_instance_to_package(fman_rxtx_node[0]);
198 fman_rxtx_node[1] = OF_instance_to_package(fman_rxtx_node[1]);
199
200 if (ofw_bus_node_is_compatible(fman_rxtx_node[0],
201 "fsl,fman-v2-port-rx") == 0)
202 return (ENXIO);
203
204 if (ofw_bus_node_is_compatible(fman_rxtx_node[1],
205 "fsl,fman-v2-port-tx") == 0)
206 return (ENXIO);
207
208 /* Get RX port HW id */
209 if (OF_getprop(fman_rxtx_node[0], "reg", (void *)&sc->sc_port_rx_hw_id,
210 sizeof(sc->sc_port_rx_hw_id)) <= 0)
211 return (ENXIO);
212
213 /* Get TX port HW id */
214 if (OF_getprop(fman_rxtx_node[1], "reg", (void *)&sc->sc_port_tx_hw_id,
215 sizeof(sc->sc_port_tx_hw_id)) <= 0)
216 return (ENXIO);
217
218 if (OF_getprop(fman_rxtx_node[1], "cell-index", &fman_tx_cell,
219 sizeof(fman_tx_cell)) <= 0)
220 return (ENXIO);
221 /* Get QMan channel */
222 sc->sc_port_tx_qman_chan = fman_qman_channel_id(device_get_parent(dev),
223 fman_tx_cell);
224
225 return (dtsec_attach(dev));
226 }
227