2 * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/module.h>
32 #include <sys/systm.h>
33 #include <sys/kernel.h>
35 #include <sys/endian.h>
36 #include <sys/malloc.h>
38 #include <sys/mutex.h>
40 #include <machine/stdarg.h>
41 #include <machine/resource.h>
42 #include <machine/bus.h>
44 #include <arm/mv/mvreg.h>
45 #include <arm/mv/mvvar.h>
48 /* local prototypes */
49 static int mvs_setup_interrupt(device_t dev);
50 static void mvs_intr(void *data);
51 static int mvs_suspend(device_t dev);
52 static int mvs_resume(device_t dev);
53 static int mvs_ctlr_setup(device_t dev);
62 {MV_DEV_88F5182, 0x00, "Marvell 88F5182", 2, MVS_Q_GENIIE|MVS_Q_SOC},
63 {MV_DEV_88F6281, 0x00, "Marvell 88F6281", 2, MVS_Q_GENIIE|MVS_Q_SOC},
64 {MV_DEV_MV78100, 0x00, "Marvell MV78100", 2, MVS_Q_GENIIE|MVS_Q_SOC},
65 {MV_DEV_MV78100_Z0, 0x00,"Marvell MV78100", 2, MVS_Q_GENIIE|MVS_Q_SOC},
70 mvs_probe(device_t dev)
74 uint32_t devid, revid;
76 soc_id(&devid, &revid);
77 for (i = 0; mvs_ids[i].id != 0; i++) {
78 if (mvs_ids[i].id == devid &&
79 mvs_ids[i].rev <= revid) {
80 snprintf(buf, sizeof(buf), "%s SATA controller",
82 device_set_desc_copy(dev, buf);
83 return (BUS_PROBE_VENDOR);
90 mvs_attach(device_t dev)
92 struct mvs_controller *ctlr = device_get_softc(dev);
95 uint32_t devid, revid;
97 soc_id(&devid, &revid);
100 while (mvs_ids[i].id != 0 &&
101 (mvs_ids[i].id != devid ||
102 mvs_ids[i].rev > revid))
104 ctlr->channels = mvs_ids[i].ports;
105 ctlr->quirks = mvs_ids[i].quirks;
106 resource_int_value(device_get_name(dev),
107 device_get_unit(dev), "ccc", &ctlr->ccc);
109 resource_int_value(device_get_name(dev),
110 device_get_unit(dev), "cccc", &ctlr->cccc);
111 if (ctlr->ccc == 0 || ctlr->cccc == 0) {
115 if (ctlr->ccc > 100000)
118 "Gen-%s, %d %sGbps ports, Port Multiplier %s%s\n",
119 ((ctlr->quirks & MVS_Q_GENI) ? "I" :
120 ((ctlr->quirks & MVS_Q_GENII) ? "II" : "IIe")),
122 ((ctlr->quirks & MVS_Q_GENI) ? "1.5" : "3"),
123 ((ctlr->quirks & MVS_Q_GENI) ?
124 "not supported" : "supported"),
125 ((ctlr->quirks & MVS_Q_GENIIE) ?
127 mtx_init(&ctlr->mtx, "MVS controller lock", NULL, MTX_DEF);
128 /* We should have a memory BAR(0). */
130 if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
131 &ctlr->r_rid, RF_ACTIVE)))
133 /* Setup our own memory management for channels. */
134 ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem);
135 ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem);
136 ctlr->sc_iomem.rm_type = RMAN_ARRAY;
137 ctlr->sc_iomem.rm_descr = "I/O memory addresses";
138 if ((error = rman_init(&ctlr->sc_iomem)) != 0) {
139 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
142 if ((error = rman_manage_region(&ctlr->sc_iomem,
143 rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) {
144 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
145 rman_fini(&ctlr->sc_iomem);
149 /* Setup interrupts. */
150 if (mvs_setup_interrupt(dev)) {
151 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
152 rman_fini(&ctlr->sc_iomem);
155 /* Attach all channels on this controller */
156 for (unit = 0; unit < ctlr->channels; unit++) {
157 child = device_add_child(dev, "mvsch", -1);
159 device_printf(dev, "failed to add channel device\n");
161 device_set_ivars(child, (void *)(intptr_t)unit);
163 bus_generic_attach(dev);
168 mvs_detach(device_t dev)
170 struct mvs_controller *ctlr = device_get_softc(dev);
174 /* Detach & delete all children */
175 if (!device_get_children(dev, &children, &nchildren)) {
176 for (i = 0; i < nchildren; i++)
177 device_delete_child(dev, children[i]);
178 free(children, M_TEMP);
180 /* Free interrupt. */
181 if (ctlr->irq.r_irq) {
182 bus_teardown_intr(dev, ctlr->irq.r_irq,
184 bus_release_resource(dev, SYS_RES_IRQ,
185 ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
188 rman_fini(&ctlr->sc_iomem);
190 bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
191 mtx_destroy(&ctlr->mtx);
196 mvs_ctlr_setup(device_t dev)
198 struct mvs_controller *ctlr = device_get_softc(dev);
199 int ccc = ctlr->ccc, cccc = ctlr->cccc, ccim = 0;
201 /* Mask chip interrupts */
202 ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, 0x00000000);
203 /* Clear HC interrupts */
204 ATA_OUTL(ctlr->r_mem, HC_IC, 0x00000000);
205 /* Clear chip interrupts */
206 ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIC, 0);
207 /* Configure per-HC CCC */
208 if (ccc && bootverbose) {
210 "CCC with %dus/%dcmd enabled\n",
211 ctlr->ccc, ctlr->cccc);
214 ATA_OUTL(ctlr->r_mem, HC_ICT, cccc);
215 ATA_OUTL(ctlr->r_mem, HC_ITT, ccc);
217 ccim |= IC_HC0_COAL_DONE;
218 /* Enable chip interrupts */
219 ctlr->gmim = (ccc ? IC_HC0_COAL_DONE : IC_DONE_HC0) | IC_ERR_HC0;
220 ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, ctlr->gmim | ctlr->pmim);
225 mvs_edma(device_t dev, device_t child, int mode)
227 struct mvs_controller *ctlr = device_get_softc(dev);
228 int unit = ((struct mvs_channel *)device_get_softc(child))->unit;
229 int bit = IC_DONE_IRQ << (unit * 2);
233 /* CCC is not working for non-EDMA mode. Unmask device interrupts. */
234 mtx_lock(&ctlr->mtx);
235 if (mode == MVS_EDMA_OFF)
239 ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, ctlr->gmim | ctlr->pmim);
240 mtx_unlock(&ctlr->mtx);
244 mvs_suspend(device_t dev)
246 struct mvs_controller *ctlr = device_get_softc(dev);
248 bus_generic_suspend(dev);
249 /* Mask chip interrupts */
250 ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, 0x00000000);
255 mvs_resume(device_t dev)
259 return (bus_generic_resume(dev));
263 mvs_setup_interrupt(device_t dev)
265 struct mvs_controller *ctlr = device_get_softc(dev);
267 /* Allocate all IRQs. */
268 ctlr->irq.r_irq_rid = 0;
269 if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
270 &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
271 device_printf(dev, "unable to map interrupt\n");
274 if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL,
275 mvs_intr, ctlr, &ctlr->irq.handle))) {
276 device_printf(dev, "unable to setup interrupt\n");
277 bus_release_resource(dev, SYS_RES_IRQ,
278 ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
286 * Common case interrupt handler.
291 struct mvs_controller *ctlr = data;
292 struct mvs_intr_arg arg;
293 void (*function)(void *);
297 ic = ATA_INL(ctlr->r_mem, CHIP_SOC_MIC);
298 //device_printf(ctlr->dev, "irq MIC:%08x\n", ic);
299 if ((ic & IC_HC0) == 0)
301 /* Acknowledge interrupts of this HC. */
303 if (ic & (IC_DONE_IRQ << 0))
304 aic |= HC_IC_DONE(0) | HC_IC_DEV(0);
305 if (ic & (IC_DONE_IRQ << 2))
306 aic |= HC_IC_DONE(1) | HC_IC_DEV(1);
307 if (ic & (IC_DONE_IRQ << 4))
308 aic |= HC_IC_DONE(2) | HC_IC_DEV(2);
309 if (ic & (IC_DONE_IRQ << 6))
310 aic |= HC_IC_DONE(3) | HC_IC_DEV(3);
311 if (ic & IC_HC0_COAL_DONE)
313 ATA_OUTL(ctlr->r_mem, HC_IC, ~aic);
314 /* Call per-port interrupt handler. */
315 for (p = 0; p < ctlr->channels; p++) {
316 arg.cause = ic & (IC_ERR_IRQ|IC_DONE_IRQ);
317 if ((arg.cause != 0) &&
318 (function = ctlr->interrupt[p].function)) {
319 arg.arg = ctlr->interrupt[p].argument;
326 static struct resource *
327 mvs_alloc_resource(device_t dev, device_t child, int type, int *rid,
328 u_long start, u_long end, u_long count, u_int flags)
330 struct mvs_controller *ctlr = device_get_softc(dev);
331 int unit = ((struct mvs_channel *)device_get_softc(child))->unit;
332 struct resource *res = NULL;
333 int offset = PORT_BASE(unit & 0x03);
338 st = rman_get_start(ctlr->r_mem);
339 res = rman_reserve_resource(&ctlr->sc_iomem, st + offset,
340 st + offset + PORT_SIZE - 1, PORT_SIZE, RF_ACTIVE, child);
342 bus_space_handle_t bsh;
344 bsh = rman_get_bushandle(ctlr->r_mem);
345 bst = rman_get_bustag(ctlr->r_mem);
346 bus_space_subregion(bst, bsh, offset, PORT_SIZE, &bsh);
347 rman_set_bushandle(res, bsh);
348 rman_set_bustag(res, bst);
352 if (*rid == ATA_IRQ_RID)
353 res = ctlr->irq.r_irq;
360 mvs_release_resource(device_t dev, device_t child, int type, int rid,
366 rman_release_resource(r);
369 if (rid != ATA_IRQ_RID)
377 mvs_setup_intr(device_t dev, device_t child, struct resource *irq,
378 int flags, driver_filter_t *filter, driver_intr_t *function,
379 void *argument, void **cookiep)
381 struct mvs_controller *ctlr = device_get_softc(dev);
382 int unit = (intptr_t)device_get_ivars(child);
384 if (filter != NULL) {
385 printf("mvs.c: we cannot use a filter here\n");
388 ctlr->interrupt[unit].function = function;
389 ctlr->interrupt[unit].argument = argument;
394 mvs_teardown_intr(device_t dev, device_t child, struct resource *irq,
397 struct mvs_controller *ctlr = device_get_softc(dev);
398 int unit = (intptr_t)device_get_ivars(child);
400 ctlr->interrupt[unit].function = NULL;
401 ctlr->interrupt[unit].argument = NULL;
406 mvs_print_child(device_t dev, device_t child)
410 retval = bus_print_child_header(dev, child);
411 retval += printf(" at channel %d",
412 (int)(intptr_t)device_get_ivars(child));
413 retval += bus_print_child_footer(dev, child);
419 mvs_child_location_str(device_t dev, device_t child, char *buf,
423 snprintf(buf, buflen, "channel=%d",
424 (int)(intptr_t)device_get_ivars(child));
428 static device_method_t mvs_methods[] = {
429 DEVMETHOD(device_probe, mvs_probe),
430 DEVMETHOD(device_attach, mvs_attach),
431 DEVMETHOD(device_detach, mvs_detach),
432 DEVMETHOD(device_suspend, mvs_suspend),
433 DEVMETHOD(device_resume, mvs_resume),
434 DEVMETHOD(bus_print_child, mvs_print_child),
435 DEVMETHOD(bus_alloc_resource, mvs_alloc_resource),
436 DEVMETHOD(bus_release_resource, mvs_release_resource),
437 DEVMETHOD(bus_setup_intr, mvs_setup_intr),
438 DEVMETHOD(bus_teardown_intr,mvs_teardown_intr),
439 DEVMETHOD(mvs_edma, mvs_edma),
440 DEVMETHOD(bus_child_location_str, mvs_child_location_str),
443 static driver_t mvs_driver = {
446 sizeof(struct mvs_controller)
448 DRIVER_MODULE(sata, mbus, mvs_driver, mvs_devclass, 0, 0);
449 MODULE_VERSION(sata, 1);