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mvsata_mv.c revision 1.3.10.1
      1 /*	$NetBSD: mvsata_mv.c,v 1.3.10.1 2012/10/30 17:21:18 yamt Exp $	*/
      2 /*
      3  * Copyright (c) 2008 KIYOHARA Takashi
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     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.
     14  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     17  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     18  * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     23  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     24  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     25  * POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include <sys/cdefs.h>
     29 __KERNEL_RCSID(0, "$NetBSD: mvsata_mv.c,v 1.3.10.1 2012/10/30 17:21:18 yamt Exp $");
     30 
     31 #include <sys/param.h>
     32 #include <sys/bus.h>
     33 #include <sys/device.h>
     34 #include <sys/errno.h>
     35 
     36 #include <dev/ata/atareg.h>
     37 #include <dev/ata/atavar.h>
     38 #include <dev/ic/wdcvar.h>
     39 
     40 #include <dev/ic/mvsatareg.h>
     41 #include <dev/ic/mvsatavar.h>
     42 
     43 #include <dev/marvell/marvellreg.h>
     44 #include <dev/marvell/marvellvar.h>
     45 
     46 #include "locators.h"
     47 
     48 
     49 #define MVSATAHC_SIZE			0x8000
     50 
     51 #define MVSATAHC_NWINDOW		4
     52 
     53 #define MVSATAHC_MICR			0x20 /* Main Interrupt Cause */
     54 #define MVSATAHC_MIMR			0x24 /* Main Interrupt Mask */
     55 #define MVSATAHC_MI_SATAERR(p)			(1 << ((p) * 2))
     56 #define MVSATAHC_MI_SATADONE(p)			(1 << (((p) * 2) + 1))
     57 #define MVSATAHC_MI_SATADMADONE(p)		(1 << ((p) + 4))
     58 #define MVSATAHC_MI_SATACOALDONE		(1 << 8)
     59 #define MVSATAHC_WCR(n)			(0x30 + (n) * 0x10) /* WinN Control */
     60 #define MVSATAHC_WCR_WINEN			(1 << 0)
     61 #define MVSATAHC_WCR_TARGET(t)			(((t) & 0xf) << 4)
     62 #define MVSATAHC_WCR_ATTR(a)			(((a) & 0xff) << 8)
     63 #define MVSATAHC_WCR_SIZE(s)			(((s) - 1) & 0xffff0000)
     64 #define MVSATAHC_WBR(n)			(0x34 + (n) * 0x10) /* WinN Base */
     65 #define MVSATAHC_WBR_BASE(b)			((b) & 0xffff0000)
     66 
     67 
     68 static int mvsatahc_match(device_t, cfdata_t, void *);
     69 static void mvsatahc_attach(device_t, device_t, void *);
     70 
     71 static int mvsatahc_intr(void *);
     72 
     73 static void mvsatahc_enable_intr(struct mvsata_port *, int);
     74 static void mvsatahc_wininit(struct mvsata_softc *);
     75 
     76 CFATTACH_DECL_NEW(mvsata_gt, sizeof(struct mvsata_softc),
     77     mvsatahc_match, mvsatahc_attach, NULL, NULL);
     78 CFATTACH_DECL_NEW(mvsata_mbus, sizeof(struct mvsata_softc),
     79     mvsatahc_match, mvsatahc_attach, NULL, NULL);
     80 
     81 
     82 struct mvsata_product mvsata_products[] = {
     83 #if 0
     84 	/* Discovery VI */
     85 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_MV64660, ?, ?, gen2?, 0 },
     86 #endif
     87 
     88 	/* Orion */
     89 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_88F5082, 1, 1, gen2e, 0 },
     90 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_88F5182, 1, 2, gen2e, 0 },
     91 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_88F6082, 1, 1, gen2e, 0 },
     92 
     93 	/* Kirkwood */
     94 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_88F6192, 1, 2, gen2e, 0 },
     95 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_88F6281, 1, 2, gen2e, 0 },
     96 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_88F6282, 1, 2, gen2e, 0 },
     97 
     98 	/* Discovery Innovation */
     99 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_MV78100, 1, 2, gen2e, 0 },
    100 	{ PCI_VENDOR_MARVELL, PCI_PRODUCT_MARVELL_MV78200, 1, 2, gen2e, 0 },
    101 };
    102 
    103 
    104 /* ARGSUSED */
    105 static int
    106 mvsatahc_match(device_t parent, cfdata_t match, void *aux)
    107 {
    108 	struct marvell_attach_args *mva = aux;
    109 	int i;
    110 
    111 	if (strcmp(mva->mva_name, match->cf_name) != 0)
    112 		return 0;
    113 	if (mva->mva_offset == MVA_OFFSET_DEFAULT ||
    114 	    mva->mva_irq == MVA_IRQ_DEFAULT)
    115 		    return 0;
    116 
    117 	for (i = 0; i < __arraycount(mvsata_products); i++)
    118 		if (mva->mva_model == mvsata_products[i].model) {
    119 			mva->mva_size = MVSATAHC_SIZE;
    120 			return 1;
    121 		}
    122 	return 0;
    123 }
    124 
    125 /* ARGSUSED */
    126 static void
    127 mvsatahc_attach(device_t parent, device_t self, void *aux)
    128 {
    129 	struct mvsata_softc *sc = device_private(self);
    130 	struct marvell_attach_args *mva = aux;
    131 	uint32_t mask;
    132 	int port, i;
    133 
    134 	aprint_normal(": Marvell Serial-ATA Host Controller (SATAHC)\n");
    135 	aprint_naive("\n");
    136 
    137 	sc->sc_wdcdev.sc_atac.atac_dev = self;
    138 	sc->sc_model = mva->mva_model;
    139 	sc->sc_iot = mva->mva_iot;
    140         if (bus_space_subregion(mva->mva_iot, mva->mva_ioh, mva->mva_offset,
    141 	    mva->mva_size, &sc->sc_ioh)) {
    142 		aprint_error_dev(self, "can't map registers\n");
    143 		return;
    144 	}
    145 	sc->sc_dmat = mva->mva_dmat;
    146 	sc->sc_enable_intr = mvsatahc_enable_intr;
    147 
    148 	mvsatahc_wininit(sc);
    149 
    150 	for (i = 0; i < __arraycount(mvsata_products); i++)
    151 		if (mva->mva_model == mvsata_products[i].model)
    152 			break;
    153 	KASSERT(i < __arraycount(mvsata_products));
    154 
    155 	if (mvsata_attach(sc, &mvsata_products[i], NULL, NULL, 0) != 0)
    156 		return;
    157 
    158 	marvell_intr_establish(mva->mva_irq, IPL_BIO, mvsatahc_intr, sc);
    159 	mask = 0;
    160 	for (port = 0; port < sc->sc_port; port++)
    161 		mask |=
    162 		    MVSATAHC_MI_SATAERR(port) |
    163 		    MVSATAHC_MI_SATADONE(port);
    164 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVSATAHC_MIMR, mask);
    165 }
    166 
    167 static int
    168 mvsatahc_intr(void *arg)
    169 {
    170 	struct mvsata_softc *sc = (struct mvsata_softc *)arg;
    171 	struct mvsata_hc *mvhc = &sc->sc_hcs[0];
    172 	uint32_t cause, handled = 0;
    173 
    174 	cause = bus_space_read_4(sc->sc_iot, sc->sc_ioh, MVSATAHC_MICR);
    175 	if (cause & MVSATAHC_MI_SATAERR(0))
    176 		handled |= mvsata_error(mvhc->hc_ports[0]);
    177 	if (cause & MVSATAHC_MI_SATAERR(1))
    178 		handled |= mvsata_error(mvhc->hc_ports[1]);
    179 	if (cause & (MVSATAHC_MI_SATADONE(0) | MVSATAHC_MI_SATADONE(1)))
    180 		handled |= mvsata_intr(mvhc);
    181 
    182 	return handled;
    183 }
    184 
    185 
    186 static void
    187 mvsatahc_enable_intr(struct mvsata_port *mvport, int on)
    188 {
    189 	struct mvsata_softc *sc =
    190 	    device_private(mvport->port_ata_channel.ch_atac->atac_dev);
    191 	uint32_t mask;
    192 
    193 	mask = bus_space_read_4(sc->sc_iot, sc->sc_ioh, MVSATAHC_MIMR);
    194 	if (on)
    195 		mask |= MVSATAHC_MI_SATADONE(mvport->port);
    196 	else
    197 		mask &= ~MVSATAHC_MI_SATADONE(mvport->port);
    198 	bus_space_write_4(sc->sc_iot, sc->sc_ioh, MVSATAHC_MIMR, mask);
    199 }
    200 
    201 static void
    202 mvsatahc_wininit(struct mvsata_softc *sc)
    203 {
    204 	device_t pdev = device_parent(sc->sc_wdcdev.sc_atac.atac_dev);
    205 	uint64_t base;
    206 	uint32_t size;
    207 	int window, target, attr, rv, i;
    208 	static int tags[] = {
    209 		MARVELL_TAG_SDRAM_CS0,
    210 		MARVELL_TAG_SDRAM_CS1,
    211 		MARVELL_TAG_SDRAM_CS2,
    212 		MARVELL_TAG_SDRAM_CS3,
    213 
    214 		MARVELL_TAG_UNDEFINED,
    215 	};
    216 
    217 	for (window = 0, i = 0;
    218 	    tags[i] != MARVELL_TAG_UNDEFINED && window < MVSATAHC_NWINDOW;
    219 	    i++) {
    220 		rv = marvell_winparams_by_tag(pdev, tags[i],
    221 		    &target, &attr, &base, &size);
    222 		if (rv != 0 || size == 0)
    223 			continue;
    224 		if (base > 0xffffffffULL) {
    225 			aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
    226 			    "tag %d address 0x%llx not support\n",
    227 			    tags[i], base);
    228 			continue;
    229 		}
    230 
    231 		bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    232 		    MVSATAHC_WCR(window),
    233 		    MVSATAHC_WCR_WINEN |
    234 		    MVSATAHC_WCR_TARGET(target) |
    235 		    MVSATAHC_WCR_ATTR(attr) |
    236 		    MVSATAHC_WCR_SIZE(size));
    237 		bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    238 		    MVSATAHC_WBR(window), MVSATAHC_WBR_BASE(base));
    239 		window++;
    240 	}
    241 	for (; window < MVSATAHC_NWINDOW; window++)
    242 		bus_space_write_4(sc->sc_iot, sc->sc_ioh,
    243 		    MVSATAHC_WCR(window), 0);
    244 }
    245