1/*-
2 * Copyright (c) 2013-2014 Bjoern A. Zeeb
3 * All rights reserved.
4 *
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.
8 *

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27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * This driver is modelled after atse(4). We need to seriously reduce the
31 * per-driver code we have to write^wcopy & paste.
32 */
33
34#include <sys/cdefs.h>
35__FBSDID("$FreeBSD: head/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c 264601 2014-04-17 12:33:26Z bz $");
36
37#include <sys/param.h>
38#include <sys/bus.h>
39#include <sys/kernel.h>
40#include <sys/module.h>
41#include <sys/rman.h>
42#include <sys/socket.h>
43#include <sys/systm.h>

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80
81 sc = device_get_softc(dev);
82 sc->nf10bmac_dev = dev;
83 sc->nf10bmac_unit = device_get_unit(dev);
84
85 /*
86 * FDT lists our resources. For convenience we use three different
87 * mappings. We need to attach them in the oder specified in .dts:
88 * TX (size 0xc), RX (size 0xc), LOOP (size 0x4).
89 */
90
91 /*
92 * TX and TX metadata FIFO memory region.
93 * 0x00: 32bit FIFO data,
94 * 0x04: 32bit FIFO metadata,
95 * 0x08: 32bit packet length.
96 */
97 sc->nf10bmac_tx_mem_rid = 0;
98 sc->nf10bmac_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
99 &sc->nf10bmac_tx_mem_rid, RF_ACTIVE);
100 if (sc->nf10bmac_tx_mem_res == NULL) {
101 device_printf(dev, "failed to map memory for TX FIFO\n");
102 error = ENXIO;
103 goto err;
104 }
105 if (bootverbose)
106 device_printf(sc->nf10bmac_dev, "TX FIFO at mem %p-%p\n",
107 (void *)rman_get_start(sc->nf10bmac_tx_mem_res),
108 (void *)(rman_get_start(sc->nf10bmac_tx_mem_res) +
109 rman_get_size(sc->nf10bmac_tx_mem_res)));
110
111 /*
112 * RX and RXC metadata FIFO memory region.
113 * 0x00: 32bit FIFO data,
114 * 0x04: 32bit FIFO metadata,
115 * 0x08: 32bit packet length.
116 */
117 sc->nf10bmac_rx_mem_rid = 1;
118 sc->nf10bmac_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
119 &sc->nf10bmac_rx_mem_rid, RF_ACTIVE);
120 if (sc->nf10bmac_rx_mem_res == NULL) {
121 device_printf(dev, "failed to map memory for RX FIFO\n");
122 error = ENXIO;
123 goto err;
124 }
125 if (bootverbose)
126 device_printf(sc->nf10bmac_dev, "RX FIFO at mem %p-%p\n",
127 (void *)rman_get_start(sc->nf10bmac_rx_mem_res),
128 (void *)(rman_get_start(sc->nf10bmac_rx_mem_res) +
129 rman_get_size(sc->nf10bmac_rx_mem_res)));
130
131 /*
132 * LOOP memory region (this could be a general control region).
133 * 0x00: 32bit register to enable a Y-"lopback".
134 */
135 sc->nf10bmac_mem_rid = 2;
136 sc->nf10bmac_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
137 &sc->nf10bmac_mem_rid, RF_ACTIVE);
138 if (sc->nf10bmac_mem_res == NULL) {
139 device_printf(dev, "failed to map memory for CTRL region\n");
140 error = ENXIO;
141 goto err;
142 }
143 if (bootverbose)
144 device_printf(sc->nf10bmac_dev, "CTRL region at mem %p-%p\n",
145 (void *)rman_get_start(sc->nf10bmac_mem_res),
146 (void *)(rman_get_start(sc->nf10bmac_mem_res) +
147 rman_get_size(sc->nf10bmac_mem_res)));
148
149 error = nf10bmac_attach(dev);
150 if (error)
151 goto err;
152
153 return (0);
154
155err:
156 /* Cleanup. */

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