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 * --- 18 unchanged lines hidden (view full) --- 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 265766 2014-05-09 12:59:38Z 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> --- 36 unchanged lines hidden (view full) --- 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 * LOOP (size 0x1f), TX (0x2f), RX (0x2f), INTR (0xf). |
89 */ 90 |
91 /* 92 * LOOP memory region (this could be a general control region). 93 * 0x00: 32bit register to enable a Y-"lopback". 94 */ 95 sc->nf10bmac_ctrl_rid = 0; 96 sc->nf10bmac_ctrl_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 97 &sc->nf10bmac_ctrl_rid, RF_ACTIVE); 98 if (sc->nf10bmac_ctrl_res == NULL) { 99 device_printf(dev, "failed to map memory for CTRL region\n"); 100 error = ENXIO; 101 goto err; 102 } 103 if (bootverbose) 104 device_printf(sc->nf10bmac_dev, "CTRL region at mem %p-%p\n", 105 (void *)rman_get_start(sc->nf10bmac_ctrl_res), 106 (void *)(rman_get_start(sc->nf10bmac_ctrl_res) + 107 rman_get_size(sc->nf10bmac_ctrl_res))); 108 |
109 /* 110 * TX and TX metadata FIFO memory region. 111 * 0x00: 32bit FIFO data, |
112 * 0x08: 32bit FIFO metadata, 113 * 0x10: 32bit packet length. |
114 */ |
115 sc->nf10bmac_tx_mem_rid = 1; |
116 sc->nf10bmac_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 117 &sc->nf10bmac_tx_mem_rid, RF_ACTIVE); 118 if (sc->nf10bmac_tx_mem_res == NULL) { 119 device_printf(dev, "failed to map memory for TX FIFO\n"); 120 error = ENXIO; 121 goto err; 122 } 123 if (bootverbose) 124 device_printf(sc->nf10bmac_dev, "TX FIFO at mem %p-%p\n", 125 (void *)rman_get_start(sc->nf10bmac_tx_mem_res), 126 (void *)(rman_get_start(sc->nf10bmac_tx_mem_res) + 127 rman_get_size(sc->nf10bmac_tx_mem_res))); 128 129 /* 130 * RX and RXC metadata FIFO memory region. 131 * 0x00: 32bit FIFO data, |
132 * 0x08: 32bit FIFO metadata, 133 * 0x10: 32bit packet length. |
134 */ |
135 sc->nf10bmac_rx_mem_rid = 2; |
136 sc->nf10bmac_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 137 &sc->nf10bmac_rx_mem_rid, RF_ACTIVE); 138 if (sc->nf10bmac_rx_mem_res == NULL) { 139 device_printf(dev, "failed to map memory for RX FIFO\n"); 140 error = ENXIO; 141 goto err; 142 } 143 if (bootverbose) 144 device_printf(sc->nf10bmac_dev, "RX FIFO at mem %p-%p\n", 145 (void *)rman_get_start(sc->nf10bmac_rx_mem_res), 146 (void *)(rman_get_start(sc->nf10bmac_rx_mem_res) + 147 rman_get_size(sc->nf10bmac_rx_mem_res))); 148 149 /* |
150 * Interrupt handling registers. 151 * 0x00: 32bit register to clear (and disable) the RX interrupt. 152 * 0x08: 32bit register to enable or disable the RX interrupt. |
153 */ |
154 sc->nf10bmac_intr_rid = 3; 155 sc->nf10bmac_intr_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 156 &sc->nf10bmac_intr_rid, RF_ACTIVE); 157 if (sc->nf10bmac_intr_res == NULL) { 158 device_printf(dev, "failed to map memory for INTR region\n"); |
159 error = ENXIO; 160 goto err; 161 } 162 if (bootverbose) |
163 device_printf(sc->nf10bmac_dev, "INTR region at mem %p-%p\n", 164 (void *)rman_get_start(sc->nf10bmac_intr_res), 165 (void *)(rman_get_start(sc->nf10bmac_intr_res) + 166 rman_get_size(sc->nf10bmac_intr_res))); |
167 |
168 /* (Optional) RX and TX IRQ. */ 169 sc->nf10bmac_rx_irq_rid = 0; 170 sc->nf10bmac_rx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, 171 &sc->nf10bmac_rx_irq_rid, RF_ACTIVE | RF_SHAREABLE); 172 |
173 error = nf10bmac_attach(dev); 174 if (error) 175 goto err; 176 177 return (0); 178 179err: 180 /* Cleanup. */ --- 23 unchanged lines hidden --- |