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mvs.c
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mvs.h
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mvs_if.m
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mvs_pci.c
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mvs_soc.c
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Editing: mvs_soc.c
/*- * 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 <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_str(device_t dev, device_t child, char *buf, size_t buflen) { snprintf(buf, buflen, "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_str, mvs_child_location_str), 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);
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