2 * Copyright (c) 2013 Bjoern A. Zeeb
5 * This software was developed by SRI International and the University of
6 * Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-11-C-0249)
7 * ("MRC2"), as part of the DARPA MRC research programme.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
34 #include <sys/param.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
39 #include <sys/socket.h>
40 #include <sys/systm.h>
42 #include <machine/bus.h>
43 #include <machine/resource.h>
45 #include <net/ethernet.h>
47 #include <net/if_media.h>
49 #include <dev/mii/mii.h>
50 #include <dev/mii/miivar.h>
53 #include <dev/fdt/fdt_common.h>
54 #include <dev/ofw/openfirm.h>
55 #include <dev/ofw/ofw_bus.h>
56 #include <dev/ofw/ofw_bus_subr.h>
58 #include <dev/altera/atse/if_atsereg.h>
60 /* "device miibus" required. See GENERIC if you get errors here. */
61 #include "miibus_if.h"
64 atse_probe_fdt(device_t dev)
67 if (ofw_bus_is_compatible(dev, "altera,atse")) {
68 device_set_desc(dev, "Altera Triple-Speed Ethernet MegaCore");
69 return (BUS_PROBE_DEFAULT);
75 atse_attach_fdt(device_t dev)
77 struct atse_softc *sc;
80 sc = device_get_softc(dev);
82 sc->atse_unit = device_get_unit(dev);
85 * FDT has the list of our resources. Given we are using multiple
86 * memory regions and possibly multiple interrupts, we need to attach
87 * them in the order specified in .dts:
88 * MAC, RX and RXC FIFO, TX and TXC FIFO; RX INTR, TX INTR.
91 /* MAC: Avalon-MM, atse management register region. */
93 sc->atse_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
94 &sc->atse_mem_rid, RF_ACTIVE);
95 if (sc->atse_mem_res == NULL) {
96 device_printf(dev, "failed to map memory for ctrl region\n");
101 device_printf(sc->atse_dev, "MAC ctrl region at mem %p-%p\n",
102 (void *)rman_get_start(sc->atse_mem_res),
103 (void *)(rman_get_start(sc->atse_mem_res) +
104 rman_get_size(sc->atse_mem_res)));
107 * RX and RXC FIFO memory regions.
108 * 0x00: 2 * 32bit FIFO data,
109 * 0x20: 8 * 32bit FIFO ctrl, Avalon-ST Sink to Avalon-MM R-Slave.
111 sc->atse_rx_mem_rid = 1;
112 sc->atse_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
113 &sc->atse_rx_mem_rid, RF_ACTIVE);
114 if (sc->atse_rx_mem_res == NULL) {
115 device_printf(dev, "failed to map memory for RX FIFO\n");
120 device_printf(sc->atse_dev, "RX FIFO at mem %p-%p\n",
121 (void *)rman_get_start(sc->atse_rx_mem_res),
122 (void *)(rman_get_start(sc->atse_rx_mem_res) +
123 rman_get_size(sc->atse_rx_mem_res)));
125 sc->atse_rxc_mem_rid = 2;
126 sc->atse_rxc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
127 &sc->atse_rxc_mem_rid, RF_ACTIVE);
128 if (sc->atse_rxc_mem_res == NULL) {
129 device_printf(dev, "failed to map memory for RXC FIFO\n");
134 device_printf(sc->atse_dev, "RXC FIFO at mem %p-%p\n",
135 (void *)rman_get_start(sc->atse_rxc_mem_res),
136 (void *)(rman_get_start(sc->atse_rxc_mem_res) +
137 rman_get_size(sc->atse_rxc_mem_res)));
140 * TX and TXC FIFO memory regions.
141 * 0x00: 2 * 32bit FIFO data,
142 * 0x20: 8 * 32bit FIFO ctrl, Avalon-MM W-Slave to Avalon-ST Source.
144 sc->atse_tx_mem_rid = 3;
145 sc->atse_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
146 &sc->atse_tx_mem_rid, RF_ACTIVE);
147 if (sc->atse_tx_mem_res == NULL) {
148 device_printf(dev, "failed to map memory for TX FIFO\n");
153 device_printf(sc->atse_dev, "TX FIFO at mem %p-%p\n",
154 (void *)rman_get_start(sc->atse_tx_mem_res),
155 (void *)(rman_get_start(sc->atse_tx_mem_res) +
156 rman_get_size(sc->atse_tx_mem_res)));
158 sc->atse_txc_mem_rid = 4;
159 sc->atse_txc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
160 &sc->atse_txc_mem_rid, RF_ACTIVE);
161 if (sc->atse_txc_mem_res == NULL) {
162 device_printf(dev, "failed to map memory for TXC FIFO\n");
167 device_printf(sc->atse_dev, "TXC FIFO at mem %p-%p\n",
168 (void *)rman_get_start(sc->atse_txc_mem_res),
169 (void *)(rman_get_start(sc->atse_txc_mem_res) +
170 rman_get_size(sc->atse_txc_mem_res)));
172 /* (Optional) RX and TX IRQ. */
173 sc->atse_rx_irq_rid = 0;
174 sc->atse_rx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
175 &sc->atse_rx_irq_rid, RF_ACTIVE | RF_SHAREABLE);
176 sc->atse_tx_irq_rid = 1;
177 sc->atse_tx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
178 &sc->atse_tx_irq_rid, RF_ACTIVE | RF_SHAREABLE);
180 error = atse_attach(dev);
188 atse_detach_resources(dev);
193 static device_method_t atse_methods_fdt[] = {
194 /* Device interface */
195 DEVMETHOD(device_probe, atse_probe_fdt),
196 DEVMETHOD(device_attach, atse_attach_fdt),
197 DEVMETHOD(device_detach, atse_detach_dev),
200 DEVMETHOD(miibus_readreg, atse_miibus_readreg),
201 DEVMETHOD(miibus_writereg, atse_miibus_writereg),
202 DEVMETHOD(miibus_statchg, atse_miibus_statchg),
207 static driver_t atse_driver_fdt = {
210 sizeof(struct atse_softc)
213 DRIVER_MODULE(atse, simplebus, atse_driver_fdt, atse_devclass, 0, 0);
214 DRIVER_MODULE(miibus, atse, miibus_driver, miibus_devclass, 0, 0);