diff options
Diffstat (limited to 'sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c')
| -rw-r--r-- | sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c | 60 |
1 files changed, 42 insertions, 18 deletions
diff --git a/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c b/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c index 3eff847..4245da4 100644 --- a/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c +++ b/sys/dev/netfpga10g/nf10bmac/if_nf10bmac_fdt.c @@ -85,16 +85,34 @@ nf10bmac_attach_fdt(device_t dev) /* * FDT lists our resources. For convenience we use three different * mappings. We need to attach them in the oder specified in .dts: - * TX (size 0xc), RX (size 0xc), LOOP (size 0x4). + * LOOP (size 0x1f), TX (0x2f), RX (0x2f), INTR (0xf). */ + /* + * LOOP memory region (this could be a general control region). + * 0x00: 32bit register to enable a Y-"lopback". + */ + sc->nf10bmac_ctrl_rid = 0; + sc->nf10bmac_ctrl_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &sc->nf10bmac_ctrl_rid, RF_ACTIVE); + if (sc->nf10bmac_ctrl_res == NULL) { + device_printf(dev, "failed to map memory for CTRL region\n"); + error = ENXIO; + goto err; + } + if (bootverbose) + device_printf(sc->nf10bmac_dev, "CTRL region at mem %p-%p\n", + (void *)rman_get_start(sc->nf10bmac_ctrl_res), + (void *)(rman_get_start(sc->nf10bmac_ctrl_res) + + rman_get_size(sc->nf10bmac_ctrl_res))); + /* * TX and TX metadata FIFO memory region. * 0x00: 32bit FIFO data, - * 0x04: 32bit FIFO metadata, - * 0x08: 32bit packet length. + * 0x08: 32bit FIFO metadata, + * 0x10: 32bit packet length. */ - sc->nf10bmac_tx_mem_rid = 0; + sc->nf10bmac_tx_mem_rid = 1; sc->nf10bmac_tx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->nf10bmac_tx_mem_rid, RF_ACTIVE); if (sc->nf10bmac_tx_mem_res == NULL) { @@ -111,10 +129,10 @@ nf10bmac_attach_fdt(device_t dev) /* * RX and RXC metadata FIFO memory region. * 0x00: 32bit FIFO data, - * 0x04: 32bit FIFO metadata, - * 0x08: 32bit packet length. + * 0x08: 32bit FIFO metadata, + * 0x10: 32bit packet length. */ - sc->nf10bmac_rx_mem_rid = 1; + sc->nf10bmac_rx_mem_rid = 2; sc->nf10bmac_rx_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->nf10bmac_rx_mem_rid, RF_ACTIVE); if (sc->nf10bmac_rx_mem_res == NULL) { @@ -129,22 +147,28 @@ nf10bmac_attach_fdt(device_t dev) rman_get_size(sc->nf10bmac_rx_mem_res))); /* - * LOOP memory region (this could be a general control region). - * 0x00: 32bit register to enable a Y-"lopback". + * Interrupt handling registers. + * 0x00: 32bit register to clear (and disable) the RX interrupt. + * 0x08: 32bit register to enable or disable the RX interrupt. */ - sc->nf10bmac_mem_rid = 2; - sc->nf10bmac_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, - &sc->nf10bmac_mem_rid, RF_ACTIVE); - if (sc->nf10bmac_mem_res == NULL) { - device_printf(dev, "failed to map memory for CTRL region\n"); + sc->nf10bmac_intr_rid = 3; + sc->nf10bmac_intr_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, + &sc->nf10bmac_intr_rid, RF_ACTIVE); + if (sc->nf10bmac_intr_res == NULL) { + device_printf(dev, "failed to map memory for INTR region\n"); error = ENXIO; goto err; } if (bootverbose) - device_printf(sc->nf10bmac_dev, "CTRL region at mem %p-%p\n", - (void *)rman_get_start(sc->nf10bmac_mem_res), - (void *)(rman_get_start(sc->nf10bmac_mem_res) + - rman_get_size(sc->nf10bmac_mem_res))); + device_printf(sc->nf10bmac_dev, "INTR region at mem %p-%p\n", + (void *)rman_get_start(sc->nf10bmac_intr_res), + (void *)(rman_get_start(sc->nf10bmac_intr_res) + + rman_get_size(sc->nf10bmac_intr_res))); + + /* (Optional) RX and TX IRQ. */ + sc->nf10bmac_rx_irq_rid = 0; + sc->nf10bmac_rx_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, + &sc->nf10bmac_rx_irq_rid, RF_ACTIVE | RF_SHAREABLE); error = nf10bmac_attach(dev); if (error) |
