/sys/dev/mvs/mvs_soc.c
C | 470 lines | 376 code | 45 blank | 49 comment | 53 complexity | 81ded45f13c5dec75eaabdb15e75ac67 MD5 | raw file
- /*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
- *
- * Copyright (c) 2010 Alexander Motin <mav@FreeBSD.org>
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer,
- * without modification, immediately at the beginning of the file.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
- #include <sys/cdefs.h>
- __FBSDID("$FreeBSD$");
- #include <sys/param.h>
- #include <sys/module.h>
- #include <sys/systm.h>
- #include <sys/kernel.h>
- #include <sys/bus.h>
- #include <sys/endian.h>
- #include <sys/malloc.h>
- #include <sys/lock.h>
- #include <sys/mutex.h>
- #include <vm/uma.h>
- #include <machine/stdarg.h>
- #include <machine/resource.h>
- #include <machine/bus.h>
- #include <sys/rman.h>
- #include <sys/sbuf.h>
- #include <arm/mv/mvreg.h>
- #include <arm/mv/mvvar.h>
- #include <dev/ofw/ofw_bus.h>
- #include <dev/ofw/ofw_bus_subr.h>
- #include "mvs.h"
- /* local prototypes */
- static int mvs_setup_interrupt(device_t dev);
- static void mvs_intr(void *data);
- static int mvs_suspend(device_t dev);
- static int mvs_resume(device_t dev);
- static int mvs_ctlr_setup(device_t dev);
- static struct {
- uint32_t id;
- uint8_t rev;
- const char *name;
- int ports;
- int quirks;
- } mvs_ids[] = {
- {MV_DEV_88F5182, 0x00, "Marvell 88F5182", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {MV_DEV_88F6281, 0x00, "Marvell 88F6281", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {MV_DEV_88F6282, 0x00, "Marvell 88F6282", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {MV_DEV_MV78100, 0x00, "Marvell MV78100", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {MV_DEV_MV78100_Z0, 0x00,"Marvell MV78100", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {MV_DEV_MV78260, 0x00, "Marvell MV78260", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {MV_DEV_MV78460, 0x00, "Marvell MV78460", 2, MVS_Q_GENIIE|MVS_Q_SOC},
- {0, 0x00, NULL, 0, 0}
- };
- static int
- mvs_probe(device_t dev)
- {
- char buf[64];
- int i;
- uint32_t devid, revid;
- if (!ofw_bus_status_okay(dev))
- return (ENXIO);
- if (!ofw_bus_is_compatible(dev, "mrvl,sata"))
- return (ENXIO);
- soc_id(&devid, &revid);
- for (i = 0; mvs_ids[i].id != 0; i++) {
- if (mvs_ids[i].id == devid &&
- mvs_ids[i].rev <= revid) {
- snprintf(buf, sizeof(buf), "%s SATA controller",
- mvs_ids[i].name);
- device_set_desc_copy(dev, buf);
- return (BUS_PROBE_DEFAULT);
- }
- }
- return (ENXIO);
- }
- static int
- mvs_attach(device_t dev)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- device_t child;
- int error, unit, i;
- uint32_t devid, revid;
- soc_id(&devid, &revid);
- ctlr->dev = dev;
- i = 0;
- while (mvs_ids[i].id != 0 &&
- (mvs_ids[i].id != devid ||
- mvs_ids[i].rev > revid))
- i++;
- ctlr->channels = mvs_ids[i].ports;
- ctlr->quirks = mvs_ids[i].quirks;
- ctlr->ccc = 0;
- resource_int_value(device_get_name(dev),
- device_get_unit(dev), "ccc", &ctlr->ccc);
- ctlr->cccc = 8;
- resource_int_value(device_get_name(dev),
- device_get_unit(dev), "cccc", &ctlr->cccc);
- if (ctlr->ccc == 0 || ctlr->cccc == 0) {
- ctlr->ccc = 0;
- ctlr->cccc = 0;
- }
- if (ctlr->ccc > 100000)
- ctlr->ccc = 100000;
- device_printf(dev,
- "Gen-%s, %d %sGbps ports, Port Multiplier %s%s\n",
- ((ctlr->quirks & MVS_Q_GENI) ? "I" :
- ((ctlr->quirks & MVS_Q_GENII) ? "II" : "IIe")),
- ctlr->channels,
- ((ctlr->quirks & MVS_Q_GENI) ? "1.5" : "3"),
- ((ctlr->quirks & MVS_Q_GENI) ?
- "not supported" : "supported"),
- ((ctlr->quirks & MVS_Q_GENIIE) ?
- " with FBS" : ""));
- mtx_init(&ctlr->mtx, "MVS controller lock", NULL, MTX_DEF);
- /* We should have a memory BAR(0). */
- ctlr->r_rid = 0;
- if (!(ctlr->r_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
- &ctlr->r_rid, RF_ACTIVE)))
- return ENXIO;
- if (ATA_INL(ctlr->r_mem, PORT_BASE(0) + SATA_PHYCFG_OFS) != 0)
- ctlr->quirks |= MVS_Q_SOC65;
- /* Setup our own memory management for channels. */
- ctlr->sc_iomem.rm_start = rman_get_start(ctlr->r_mem);
- ctlr->sc_iomem.rm_end = rman_get_end(ctlr->r_mem);
- ctlr->sc_iomem.rm_type = RMAN_ARRAY;
- ctlr->sc_iomem.rm_descr = "I/O memory addresses";
- if ((error = rman_init(&ctlr->sc_iomem)) != 0) {
- bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
- return (error);
- }
- if ((error = rman_manage_region(&ctlr->sc_iomem,
- rman_get_start(ctlr->r_mem), rman_get_end(ctlr->r_mem))) != 0) {
- bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
- rman_fini(&ctlr->sc_iomem);
- return (error);
- }
- mvs_ctlr_setup(dev);
- /* Setup interrupts. */
- if (mvs_setup_interrupt(dev)) {
- bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
- rman_fini(&ctlr->sc_iomem);
- return ENXIO;
- }
- /* Attach all channels on this controller */
- for (unit = 0; unit < ctlr->channels; unit++) {
- child = device_add_child(dev, "mvsch", -1);
- if (child == NULL)
- device_printf(dev, "failed to add channel device\n");
- else
- device_set_ivars(child, (void *)(intptr_t)unit);
- }
- bus_generic_attach(dev);
- return 0;
- }
- static int
- mvs_detach(device_t dev)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- /* Detach & delete all children */
- device_delete_children(dev);
- /* Free interrupt. */
- if (ctlr->irq.r_irq) {
- bus_teardown_intr(dev, ctlr->irq.r_irq,
- ctlr->irq.handle);
- bus_release_resource(dev, SYS_RES_IRQ,
- ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
- }
- /* Free memory. */
- rman_fini(&ctlr->sc_iomem);
- if (ctlr->r_mem)
- bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);
- mtx_destroy(&ctlr->mtx);
- return (0);
- }
- static int
- mvs_ctlr_setup(device_t dev)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- int ccc = ctlr->ccc, cccc = ctlr->cccc, ccim = 0;
- /* Mask chip interrupts */
- ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, 0x00000000);
- /* Clear HC interrupts */
- ATA_OUTL(ctlr->r_mem, HC_IC, 0x00000000);
- /* Clear chip interrupts */
- ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIC, 0);
- /* Configure per-HC CCC */
- if (ccc && bootverbose) {
- device_printf(dev,
- "CCC with %dus/%dcmd enabled\n",
- ctlr->ccc, ctlr->cccc);
- }
- ccc *= 150;
- ATA_OUTL(ctlr->r_mem, HC_ICT, cccc);
- ATA_OUTL(ctlr->r_mem, HC_ITT, ccc);
- if (ccc)
- ccim |= IC_HC0_COAL_DONE;
- /* Enable chip interrupts */
- ctlr->gmim = ((ccc ? IC_HC0_COAL_DONE :
- (IC_DONE_HC0 & CHIP_SOC_HC0_MASK(ctlr->channels))) |
- (IC_ERR_HC0 & CHIP_SOC_HC0_MASK(ctlr->channels)));
- ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, ctlr->gmim | ctlr->pmim);
- return (0);
- }
- static void
- mvs_edma(device_t dev, device_t child, int mode)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- int unit = ((struct mvs_channel *)device_get_softc(child))->unit;
- int bit = IC_DONE_IRQ << (unit * 2);
- if (ctlr->ccc == 0)
- return;
- /* CCC is not working for non-EDMA mode. Unmask device interrupts. */
- mtx_lock(&ctlr->mtx);
- if (mode == MVS_EDMA_OFF)
- ctlr->pmim |= bit;
- else
- ctlr->pmim &= ~bit;
- ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, ctlr->gmim | ctlr->pmim);
- mtx_unlock(&ctlr->mtx);
- }
- static int
- mvs_suspend(device_t dev)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- bus_generic_suspend(dev);
- /* Mask chip interrupts */
- ATA_OUTL(ctlr->r_mem, CHIP_SOC_MIM, 0x00000000);
- return 0;
- }
- static int
- mvs_resume(device_t dev)
- {
- mvs_ctlr_setup(dev);
- return (bus_generic_resume(dev));
- }
- static int
- mvs_setup_interrupt(device_t dev)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- /* Allocate all IRQs. */
- ctlr->irq.r_irq_rid = 0;
- if (!(ctlr->irq.r_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
- &ctlr->irq.r_irq_rid, RF_SHAREABLE | RF_ACTIVE))) {
- device_printf(dev, "unable to map interrupt\n");
- return (ENXIO);
- }
- if ((bus_setup_intr(dev, ctlr->irq.r_irq, ATA_INTR_FLAGS, NULL,
- mvs_intr, ctlr, &ctlr->irq.handle))) {
- device_printf(dev, "unable to setup interrupt\n");
- bus_release_resource(dev, SYS_RES_IRQ,
- ctlr->irq.r_irq_rid, ctlr->irq.r_irq);
- ctlr->irq.r_irq = NULL;
- return (ENXIO);
- }
- return (0);
- }
- /*
- * Common case interrupt handler.
- */
- static void
- mvs_intr(void *data)
- {
- struct mvs_controller *ctlr = data;
- struct mvs_intr_arg arg;
- void (*function)(void *);
- int p, chan_num;
- u_int32_t ic, aic;
- ic = ATA_INL(ctlr->r_mem, CHIP_SOC_MIC);
- if ((ic & IC_HC0) == 0)
- return;
- /* Acknowledge interrupts of this HC. */
- aic = 0;
- /* Processing interrupts from each initialized channel */
- for (chan_num = 0; chan_num < ctlr->channels; chan_num++) {
- if (ic & (IC_DONE_IRQ << (chan_num * 2)))
- aic |= HC_IC_DONE(chan_num) | HC_IC_DEV(chan_num);
- }
- if (ic & IC_HC0_COAL_DONE)
- aic |= HC_IC_COAL;
- ATA_OUTL(ctlr->r_mem, HC_IC, ~aic);
- /* Call per-port interrupt handler. */
- for (p = 0; p < ctlr->channels; p++) {
- arg.cause = ic & (IC_ERR_IRQ|IC_DONE_IRQ);
- if ((arg.cause != 0) &&
- (function = ctlr->interrupt[p].function)) {
- arg.arg = ctlr->interrupt[p].argument;
- function(&arg);
- }
- ic >>= 2;
- }
- }
- static struct resource *
- mvs_alloc_resource(device_t dev, device_t child, int type, int *rid,
- rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- int unit = ((struct mvs_channel *)device_get_softc(child))->unit;
- struct resource *res = NULL;
- int offset = PORT_BASE(unit & 0x03);
- rman_res_t st;
- switch (type) {
- case SYS_RES_MEMORY:
- st = rman_get_start(ctlr->r_mem);
- res = rman_reserve_resource(&ctlr->sc_iomem, st + offset,
- st + offset + PORT_SIZE - 1, PORT_SIZE, RF_ACTIVE, child);
- if (res) {
- bus_space_handle_t bsh;
- bus_space_tag_t bst;
- bsh = rman_get_bushandle(ctlr->r_mem);
- bst = rman_get_bustag(ctlr->r_mem);
- bus_space_subregion(bst, bsh, offset, PORT_SIZE, &bsh);
- rman_set_bushandle(res, bsh);
- rman_set_bustag(res, bst);
- }
- break;
- case SYS_RES_IRQ:
- if (*rid == ATA_IRQ_RID)
- res = ctlr->irq.r_irq;
- break;
- }
- return (res);
- }
- static int
- mvs_release_resource(device_t dev, device_t child, int type, int rid,
- struct resource *r)
- {
- switch (type) {
- case SYS_RES_MEMORY:
- rman_release_resource(r);
- return (0);
- case SYS_RES_IRQ:
- if (rid != ATA_IRQ_RID)
- return ENOENT;
- return (0);
- }
- return (EINVAL);
- }
- static int
- mvs_setup_intr(device_t dev, device_t child, struct resource *irq,
- int flags, driver_filter_t *filter, driver_intr_t *function,
- void *argument, void **cookiep)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- int unit = (intptr_t)device_get_ivars(child);
- if (filter != NULL) {
- printf("mvs.c: we cannot use a filter here\n");
- return (EINVAL);
- }
- ctlr->interrupt[unit].function = function;
- ctlr->interrupt[unit].argument = argument;
- return (0);
- }
- static int
- mvs_teardown_intr(device_t dev, device_t child, struct resource *irq,
- void *cookie)
- {
- struct mvs_controller *ctlr = device_get_softc(dev);
- int unit = (intptr_t)device_get_ivars(child);
- ctlr->interrupt[unit].function = NULL;
- ctlr->interrupt[unit].argument = NULL;
- return (0);
- }
- static int
- mvs_print_child(device_t dev, device_t child)
- {
- int retval;
- retval = bus_print_child_header(dev, child);
- retval += printf(" at channel %d",
- (int)(intptr_t)device_get_ivars(child));
- retval += bus_print_child_footer(dev, child);
- return (retval);
- }
- static int
- mvs_child_location(device_t dev, device_t child, struct sbuf *sb)
- {
- sbuf_printf(sb, "channel=%d", (int)(intptr_t)device_get_ivars(child));
- return (0);
- }
- static bus_dma_tag_t
- mvs_get_dma_tag(device_t bus, device_t child)
- {
- return (bus_get_dma_tag(bus));
- }
- static device_method_t mvs_methods[] = {
- DEVMETHOD(device_probe, mvs_probe),
- DEVMETHOD(device_attach, mvs_attach),
- DEVMETHOD(device_detach, mvs_detach),
- DEVMETHOD(device_suspend, mvs_suspend),
- DEVMETHOD(device_resume, mvs_resume),
- DEVMETHOD(bus_print_child, mvs_print_child),
- DEVMETHOD(bus_alloc_resource, mvs_alloc_resource),
- DEVMETHOD(bus_release_resource, mvs_release_resource),
- DEVMETHOD(bus_setup_intr, mvs_setup_intr),
- DEVMETHOD(bus_teardown_intr,mvs_teardown_intr),
- DEVMETHOD(bus_child_location, mvs_child_location),
- DEVMETHOD(bus_get_dma_tag, mvs_get_dma_tag),
- DEVMETHOD(mvs_edma, mvs_edma),
- { 0, 0 }
- };
- static driver_t mvs_driver = {
- "mvs",
- mvs_methods,
- sizeof(struct mvs_controller)
- };
- DRIVER_MODULE(mvs, simplebus, mvs_driver, mvs_devclass, 0, 0);
- MODULE_VERSION(mvs, 1);
- MODULE_DEPEND(mvs, cam, 1, 1, 1);