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NetBSD/sys/dev/pci/satalink.c

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/* $NetBSD: satalink.c,v 1.38 2008/04/28 20:23:55 martin Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of Wasabi Systems, Inc.
*
* 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.
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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>
__KERNEL_RCSID(0, "$NetBSD: satalink.c,v 1.38 2008/04/28 20:23:55 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
#include <dev/pci/pciidereg.h>
#include <dev/pci/pciidevar.h>
#include <dev/pci/pciide_sii3112_reg.h>
#include <dev/ata/satareg.h>
#include <dev/ata/satavar.h>
#include <dev/ata/atareg.h>
/*
* Register map for BA5 register space, indexed by channel.
*/
static const struct {
bus_addr_t ba5_IDEDMA_CMD;
bus_addr_t ba5_IDEDMA_CTL;
bus_addr_t ba5_IDEDMA_TBL;
bus_addr_t ba5_IDEDMA_CMD2;
bus_addr_t ba5_IDEDMA_CTL2;
bus_addr_t ba5_IDE_TF0;
bus_addr_t ba5_IDE_TF1;
bus_addr_t ba5_IDE_TF2;
bus_addr_t ba5_IDE_TF3;
bus_addr_t ba5_IDE_TF4;
bus_addr_t ba5_IDE_TF5;
bus_addr_t ba5_IDE_TF6;
bus_addr_t ba5_IDE_TF7;
bus_addr_t ba5_IDE_TF8;
bus_addr_t ba5_IDE_RAD;
bus_addr_t ba5_IDE_TF9;
bus_addr_t ba5_IDE_TF10;
bus_addr_t ba5_IDE_TF11;
bus_addr_t ba5_IDE_TF12;
bus_addr_t ba5_IDE_TF13;
bus_addr_t ba5_IDE_TF14;
bus_addr_t ba5_IDE_TF15;
bus_addr_t ba5_IDE_TF16;
bus_addr_t ba5_IDE_TF17;
bus_addr_t ba5_IDE_TF18;
bus_addr_t ba5_IDE_TF19;
bus_addr_t ba5_IDE_RABC;
bus_addr_t ba5_IDE_CMD_STS;
bus_addr_t ba5_IDE_CFG_STS;
bus_addr_t ba5_IDE_DTM;
bus_addr_t ba5_SControl;
bus_addr_t ba5_SStatus;
bus_addr_t ba5_SError;
bus_addr_t ba5_SActive; /* 3114 */
bus_addr_t ba5_SMisc;
bus_addr_t ba5_PHY_CONFIG;
bus_addr_t ba5_SIEN;
bus_addr_t ba5_SFISCfg;
} satalink_ba5_regmap[] = {
{ /* Channel 0 */
.ba5_IDEDMA_CMD = 0x000,
.ba5_IDEDMA_CTL = 0x002,
.ba5_IDEDMA_TBL = 0x004,
.ba5_IDEDMA_CMD2 = 0x010,
.ba5_IDEDMA_CTL2 = 0x012,
.ba5_IDE_TF0 = 0x080, /* wd_data */
.ba5_IDE_TF1 = 0x081, /* wd_error */
.ba5_IDE_TF2 = 0x082, /* wd_seccnt */
.ba5_IDE_TF3 = 0x083, /* wd_sector */
.ba5_IDE_TF4 = 0x084, /* wd_cyl_lo */
.ba5_IDE_TF5 = 0x085, /* wd_cyl_hi */
.ba5_IDE_TF6 = 0x086, /* wd_sdh */
.ba5_IDE_TF7 = 0x087, /* wd_command */
.ba5_IDE_TF8 = 0x08a, /* wd_altsts */
.ba5_IDE_RAD = 0x08c,
.ba5_IDE_TF9 = 0x091, /* Features 2 */
.ba5_IDE_TF10 = 0x092, /* Sector Count 2 */
.ba5_IDE_TF11 = 0x093, /* Start Sector 2 */
.ba5_IDE_TF12 = 0x094, /* Cylinder Low 2 */
.ba5_IDE_TF13 = 0x095, /* Cylinder High 2 */
.ba5_IDE_TF14 = 0x096, /* Device/Head 2 */
.ba5_IDE_TF15 = 0x097, /* Cmd Sts 2 */
.ba5_IDE_TF16 = 0x098, /* Sector Count 2 ext */
.ba5_IDE_TF17 = 0x099, /* Start Sector 2 ext */
.ba5_IDE_TF18 = 0x09a, /* Cyl Low 2 ext */
.ba5_IDE_TF19 = 0x09b, /* Cyl High 2 ext */
.ba5_IDE_RABC = 0x09c,
.ba5_IDE_CMD_STS = 0x0a0,
.ba5_IDE_CFG_STS = 0x0a1,
.ba5_IDE_DTM = 0x0b4,
.ba5_SControl = 0x100,
.ba5_SStatus = 0x104,
.ba5_SError = 0x108,
.ba5_SActive = 0x10c,
.ba5_SMisc = 0x140,
.ba5_PHY_CONFIG = 0x144,
.ba5_SIEN = 0x148,
.ba5_SFISCfg = 0x14c,
},
{ /* Channel 1 */
.ba5_IDEDMA_CMD = 0x008,
.ba5_IDEDMA_CTL = 0x00a,
.ba5_IDEDMA_TBL = 0x00c,
.ba5_IDEDMA_CMD2 = 0x018,
.ba5_IDEDMA_CTL2 = 0x01a,
.ba5_IDE_TF0 = 0x0c0, /* wd_data */
.ba5_IDE_TF1 = 0x0c1, /* wd_error */
.ba5_IDE_TF2 = 0x0c2, /* wd_seccnt */
.ba5_IDE_TF3 = 0x0c3, /* wd_sector */
.ba5_IDE_TF4 = 0x0c4, /* wd_cyl_lo */
.ba5_IDE_TF5 = 0x0c5, /* wd_cyl_hi */
.ba5_IDE_TF6 = 0x0c6, /* wd_sdh */
.ba5_IDE_TF7 = 0x0c7, /* wd_command */
.ba5_IDE_TF8 = 0x0ca, /* wd_altsts */
.ba5_IDE_RAD = 0x0cc,
.ba5_IDE_TF9 = 0x0d1, /* Features 2 */
.ba5_IDE_TF10 = 0x0d2, /* Sector Count 2 */
.ba5_IDE_TF11 = 0x0d3, /* Start Sector 2 */
.ba5_IDE_TF12 = 0x0d4, /* Cylinder Low 2 */
.ba5_IDE_TF13 = 0x0d5, /* Cylinder High 2 */
.ba5_IDE_TF14 = 0x0d6, /* Device/Head 2 */
.ba5_IDE_TF15 = 0x0d7, /* Cmd Sts 2 */
.ba5_IDE_TF16 = 0x0d8, /* Sector Count 2 ext */
.ba5_IDE_TF17 = 0x0d9, /* Start Sector 2 ext */
.ba5_IDE_TF18 = 0x0da, /* Cyl Low 2 ext */
.ba5_IDE_TF19 = 0x0db, /* Cyl High 2 ext */
.ba5_IDE_RABC = 0x0dc,
.ba5_IDE_CMD_STS = 0x0e0,
.ba5_IDE_CFG_STS = 0x0e1,
.ba5_IDE_DTM = 0x0f4,
.ba5_SControl = 0x180,
.ba5_SStatus = 0x184,
.ba5_SError = 0x188,
.ba5_SActive = 0x18c,
.ba5_SMisc = 0x1c0,
.ba5_PHY_CONFIG = 0x1c4,
.ba5_SIEN = 0x1c8,
.ba5_SFISCfg = 0x1cc,
},
{ /* Channel 2 (3114) */
.ba5_IDEDMA_CMD = 0x200,
.ba5_IDEDMA_CTL = 0x202,
.ba5_IDEDMA_TBL = 0x204,
.ba5_IDEDMA_CMD2 = 0x210,
.ba5_IDEDMA_CTL2 = 0x212,
.ba5_IDE_TF0 = 0x280, /* wd_data */
.ba5_IDE_TF1 = 0x281, /* wd_error */
.ba5_IDE_TF2 = 0x282, /* wd_seccnt */
.ba5_IDE_TF3 = 0x283, /* wd_sector */
.ba5_IDE_TF4 = 0x284, /* wd_cyl_lo */
.ba5_IDE_TF5 = 0x285, /* wd_cyl_hi */
.ba5_IDE_TF6 = 0x286, /* wd_sdh */
.ba5_IDE_TF7 = 0x287, /* wd_command */
.ba5_IDE_TF8 = 0x28a, /* wd_altsts */
.ba5_IDE_RAD = 0x28c,
.ba5_IDE_TF9 = 0x291, /* Features 2 */
.ba5_IDE_TF10 = 0x292, /* Sector Count 2 */
.ba5_IDE_TF11 = 0x293, /* Start Sector 2 */
.ba5_IDE_TF12 = 0x294, /* Cylinder Low 2 */
.ba5_IDE_TF13 = 0x295, /* Cylinder High 2 */
.ba5_IDE_TF14 = 0x296, /* Device/Head 2 */
.ba5_IDE_TF15 = 0x297, /* Cmd Sts 2 */
.ba5_IDE_TF16 = 0x298, /* Sector Count 2 ext */
.ba5_IDE_TF17 = 0x299, /* Start Sector 2 ext */
.ba5_IDE_TF18 = 0x29a, /* Cyl Low 2 ext */
.ba5_IDE_TF19 = 0x29b, /* Cyl High 2 ext */
.ba5_IDE_RABC = 0x29c,
.ba5_IDE_CMD_STS = 0x2a0,
.ba5_IDE_CFG_STS = 0x2a1,
.ba5_IDE_DTM = 0x2b4,
.ba5_SControl = 0x300,
.ba5_SStatus = 0x304,
.ba5_SError = 0x308,
.ba5_SActive = 0x30c,
.ba5_SMisc = 0x340,
.ba5_PHY_CONFIG = 0x344,
.ba5_SIEN = 0x348,
.ba5_SFISCfg = 0x34c,
},
{ /* Channel 3 (3114) */
.ba5_IDEDMA_CMD = 0x208,
.ba5_IDEDMA_CTL = 0x20a,
.ba5_IDEDMA_TBL = 0x20c,
.ba5_IDEDMA_CMD2 = 0x218,
.ba5_IDEDMA_CTL2 = 0x21a,
.ba5_IDE_TF0 = 0x2c0, /* wd_data */
.ba5_IDE_TF1 = 0x2c1, /* wd_error */
.ba5_IDE_TF2 = 0x2c2, /* wd_seccnt */
.ba5_IDE_TF3 = 0x2c3, /* wd_sector */
.ba5_IDE_TF4 = 0x2c4, /* wd_cyl_lo */
.ba5_IDE_TF5 = 0x2c5, /* wd_cyl_hi */
.ba5_IDE_TF6 = 0x2c6, /* wd_sdh */
.ba5_IDE_TF7 = 0x2c7, /* wd_command */
.ba5_IDE_TF8 = 0x2ca, /* wd_altsts */
.ba5_IDE_RAD = 0x2cc,
.ba5_IDE_TF9 = 0x2d1, /* Features 2 */
.ba5_IDE_TF10 = 0x2d2, /* Sector Count 2 */
.ba5_IDE_TF11 = 0x2d3, /* Start Sector 2 */
.ba5_IDE_TF12 = 0x2d4, /* Cylinder Low 2 */
.ba5_IDE_TF13 = 0x2d5, /* Cylinder High 2 */
.ba5_IDE_TF14 = 0x2d6, /* Device/Head 2 */
.ba5_IDE_TF15 = 0x2d7, /* Cmd Sts 2 */
.ba5_IDE_TF16 = 0x2d8, /* Sector Count 2 ext */
.ba5_IDE_TF17 = 0x2d9, /* Start Sector 2 ext */
.ba5_IDE_TF18 = 0x2da, /* Cyl Low 2 ext */
.ba5_IDE_TF19 = 0x2db, /* Cyl High 2 ext */
.ba5_IDE_RABC = 0x2dc,
.ba5_IDE_CMD_STS = 0x2e0,
.ba5_IDE_CFG_STS = 0x2e1,
.ba5_IDE_DTM = 0x2f4,
.ba5_SControl = 0x380,
.ba5_SStatus = 0x384,
.ba5_SError = 0x388,
.ba5_SActive = 0x38c,
.ba5_SMisc = 0x3c0,
.ba5_PHY_CONFIG = 0x3c4,
.ba5_SIEN = 0x3c8,
.ba5_SFISCfg = 0x3cc,
},
};
#define ba5_SIS 0x214 /* summary interrupt status */
/* Interrupt steering bit in BA5[0x200]. */
#define IDEDMA_CMD_INT_STEER (1U << 1)
static int satalink_match(device_t, cfdata_t, void *);
static void satalink_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(satalink, sizeof(struct pciide_softc),
satalink_match, satalink_attach, NULL, NULL);
static void sii3112_chip_map(struct pciide_softc*, struct pci_attach_args*);
static void sii3114_chip_map(struct pciide_softc*, struct pci_attach_args*);
static void sii3112_drv_probe(struct ata_channel*);
static void sii3112_setup_channel(struct ata_channel*);
static const struct pciide_product_desc pciide_satalink_products[] = {
{ PCI_PRODUCT_CMDTECH_3112,
0,
"Silicon Image SATALink 3112",
sii3112_chip_map,
},
{ PCI_PRODUCT_CMDTECH_3512,
0,
"Silicon Image SATALink 3512",
sii3112_chip_map,
},
{ PCI_PRODUCT_CMDTECH_AAR_1210SA,
0,
"Adaptec AAR-1210SA serial ATA RAID controller",
sii3112_chip_map,
},
{ PCI_PRODUCT_CMDTECH_3114,
0,
"Silicon Image SATALink 3114",
sii3114_chip_map,
},
{ 0,
0,
NULL,
NULL
}
};
static int
satalink_match(device_t parent, cfdata_t match, void *aux)
{
struct pci_attach_args *pa = aux;
if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CMDTECH) {
if (pciide_lookup_product(pa->pa_id, pciide_satalink_products))
return (2);
}
return (0);
}
static void
satalink_attach(device_t parent, device_t self, void *aux)
{
struct pci_attach_args *pa = aux;
struct pciide_softc *sc = device_private(self);
sc->sc_wdcdev.sc_atac.atac_dev = self;
pciide_common_attach(sc, pa,
pciide_lookup_product(pa->pa_id, pciide_satalink_products));
}
static inline uint32_t
ba5_read_4_ind(struct pciide_softc *sc, bus_addr_t reg)
{
uint32_t rv;
int s;
s = splbio();
pci_conf_write(sc->sc_pc, sc->sc_tag, SII3112_BA5_IND_ADDR, reg);
rv = pci_conf_read(sc->sc_pc, sc->sc_tag, SII3112_BA5_IND_DATA);
splx(s);
return (rv);
}
static inline uint32_t
ba5_read_4(struct pciide_softc *sc, bus_addr_t reg)
{
if (__predict_true(sc->sc_ba5_en != 0))
return (bus_space_read_4(sc->sc_ba5_st, sc->sc_ba5_sh, reg));
return (ba5_read_4_ind(sc, reg));
}
#define BA5_READ_4(sc, chan, reg) \
ba5_read_4((sc), satalink_ba5_regmap[(chan)].reg)
static inline void
ba5_write_4_ind(struct pciide_softc *sc, bus_addr_t reg, uint32_t val)
{
int s;
s = splbio();
pci_conf_write(sc->sc_pc, sc->sc_tag, SII3112_BA5_IND_ADDR, reg);
pci_conf_write(sc->sc_pc, sc->sc_tag, SII3112_BA5_IND_DATA, val);
splx(s);
}
static inline void
ba5_write_4(struct pciide_softc *sc, bus_addr_t reg, uint32_t val)
{
if (__predict_true(sc->sc_ba5_en != 0))
bus_space_write_4(sc->sc_ba5_st, sc->sc_ba5_sh, reg, val);
else
ba5_write_4_ind(sc, reg, val);
}
#define BA5_WRITE_4(sc, chan, reg, val) \
ba5_write_4((sc), satalink_ba5_regmap[(chan)].reg, (val))
/*
* When the Silicon Image 3112 retries a PCI memory read command,
* it may retry it as a memory read multiple command under some
* circumstances. This can totally confuse some PCI controllers,
* so ensure that it will never do this by making sure that the
* Read Threshold (FIFO Read Request Control) field of the FIFO
* Valid Byte Count and Control registers for both channels (BA5
* offset 0x40 and 0x44) are set to be at least as large as the
* cacheline size register.
* This may also happen on the 3114 (ragge 050527)
*/
static void
sii_fixup_cacheline(struct pciide_softc *sc, struct pci_attach_args *pa, int n)
{
pcireg_t cls, reg;
int i;
static bus_addr_t addr[] = { 0x40, 0x44, 0x240, 0x244 };
cls = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
cls = (cls >> PCI_CACHELINE_SHIFT) & PCI_CACHELINE_MASK;
cls *= 4;
if (cls > 224) {
cls = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG);
cls &= ~(PCI_CACHELINE_MASK << PCI_CACHELINE_SHIFT);
cls |= ((224/4) << PCI_CACHELINE_SHIFT);
pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_BHLC_REG, cls);
cls = 224;
}
if (cls < 32)
cls = 32;
cls = (cls + 31) / 32;
for (i = 0; i < n; i++) {
reg = ba5_read_4(sc, addr[i]);
if ((reg & 0x7) < cls)
ba5_write_4(sc, addr[i], (reg & 0x07) | cls);
}
}
static void
sii3112_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *cp;
bus_size_t cmdsize, ctlsize;
pcireg_t interface, scs_cmd, cfgctl;
int channel;
if (pciide_chipen(sc, pa) == 0)
return;
#define SII3112_RESET_BITS \
(SCS_CMD_PBM_RESET | SCS_CMD_ARB_RESET | \
SCS_CMD_FF1_RESET | SCS_CMD_FF0_RESET | \
SCS_CMD_IDE1_RESET | SCS_CMD_IDE0_RESET)
/*
* Reset everything and then unblock all of the interrupts.
*/
scs_cmd = pci_conf_read(pa->pa_pc, pa->pa_tag, SII3112_SCS_CMD);
pci_conf_write(pa->pa_pc, pa->pa_tag, SII3112_SCS_CMD,
scs_cmd | SII3112_RESET_BITS);
delay(50 * 1000);
pci_conf_write(pa->pa_pc, pa->pa_tag, SII3112_SCS_CMD,
scs_cmd & SCS_CMD_BA5_EN);
delay(50 * 1000);
if (scs_cmd & SCS_CMD_BA5_EN) {
aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"SATALink BA5 register space enabled\n");
if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x14,
PCI_MAPREG_TYPE_MEM|
PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->sc_ba5_st, &sc->sc_ba5_sh,
NULL, NULL) != 0)
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"unable to map SATALink BA5 register space\n");
else
sc->sc_ba5_en = 1;
} else {
aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"SATALink BA5 register space disabled\n");
cfgctl = pci_conf_read(pa->pa_pc, pa->pa_tag,
SII3112_PCI_CFGCTL);
pci_conf_write(pa->pa_pc, pa->pa_tag, SII3112_PCI_CFGCTL,
cfgctl | CFGCTL_BA5INDEN);
}
aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"bus-master DMA support present");
pciide_mapreg_dma(sc, pa);
aprint_verbose("\n");
/*
* Rev. <= 0x01 of the 3112 have a bug that can cause data
* corruption if DMA transfers cross an 8K boundary. This is
* apparently hard to tickle, but we'll go ahead and play it
* safe.
*/
if (PCI_REVISION(pa->pa_class) <= 0x01) {
sc->sc_dma_maxsegsz = 8192;
sc->sc_dma_boundary = 8192;
}
sii_fixup_cacheline(sc, pa, 2);
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
if (sc->sc_dma_ok) {
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA;
sc->sc_wdcdev.irqack = pciide_irqack;
sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
}
sc->sc_wdcdev.sc_atac.atac_set_modes = sii3112_setup_channel;
/* We can use SControl and SStatus to probe for drives. */
sc->sc_wdcdev.sc_atac.atac_probe = sii3112_drv_probe;
sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
sc->sc_wdcdev.sc_atac.atac_nchannels = PCIIDE_NUM_CHANNELS;
wdc_allocate_regs(&sc->sc_wdcdev);
/*
* The 3112 either identifies itself as a RAID storage device
* or a Misc storage device. Fake up the interface bits for
* what our driver expects.
*/
if (PCI_SUBCLASS(pa->pa_class) == PCI_SUBCLASS_MASS_STORAGE_IDE) {
interface = PCI_INTERFACE(pa->pa_class);
} else {
interface = PCIIDE_INTERFACE_BUS_MASTER_DMA |
PCIIDE_INTERFACE_PCI(0) | PCIIDE_INTERFACE_PCI(1);
}
for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
channel++) {
cp = &sc->pciide_channels[channel];
if (pciide_chansetup(sc, channel, interface) == 0)
continue;
pciide_mapchan(pa, cp, interface, &cmdsize, &ctlsize,
pciide_pci_intr);
}
}
static void
sii3114_mapreg_dma(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *pc;
int chan, reg;
bus_size_t size;
sc->sc_wdcdev.dma_arg = sc;
sc->sc_wdcdev.dma_init = pciide_dma_init;
sc->sc_wdcdev.dma_start = pciide_dma_start;
sc->sc_wdcdev.dma_finish = pciide_dma_finish;
if (device_cfdata(sc->sc_wdcdev.sc_atac.atac_dev)->cf_flags &
PCIIDE_OPTIONS_NODMA) {
aprint_verbose(
", but unused (forced off by config file)");
sc->sc_dma_ok = 0;
return;
}
/*
* Slice off a subregion of BA5 for each of the channel's DMA
* registers.
*/
sc->sc_dma_iot = sc->sc_ba5_st;
for (chan = 0; chan < 4; chan++) {
pc = &sc->pciide_channels[chan];
for (reg = 0; reg < IDEDMA_NREGS; reg++) {
size = 4;
if (size > (IDEDMA_SCH_OFFSET - reg))
size = IDEDMA_SCH_OFFSET - reg;
if (bus_space_subregion(sc->sc_ba5_st,
sc->sc_ba5_sh,
satalink_ba5_regmap[chan].ba5_IDEDMA_CMD + reg,
size, &pc->dma_iohs[reg]) != 0) {
sc->sc_dma_ok = 0;
aprint_verbose(", but can't subregion offset "
"%lu size %lu",
(u_long) satalink_ba5_regmap[
chan].ba5_IDEDMA_CMD + reg,
(u_long) size);
return;
}
}
}
/* DMA registers all set up! */
sc->sc_dmat = pa->pa_dmat;
sc->sc_dma_ok = 1;
}
static int
sii3114_chansetup(struct pciide_softc *sc, int channel)
{
static const char *channel_names[] = {
"port 0",
"port 1",
"port 2",
"port 3",
};
struct pciide_channel *cp = &sc->pciide_channels[channel];
sc->wdc_chanarray[channel] = &cp->ata_channel;
/*
* We must always keep the Interrupt Steering bit set in channel 2's
* IDEDMA_CMD register.
*/
if (channel == 2)
cp->idedma_cmd = IDEDMA_CMD_INT_STEER;
cp->name = channel_names[channel];
cp->ata_channel.ch_channel = channel;
cp->ata_channel.ch_atac = &sc->sc_wdcdev.sc_atac;
cp->ata_channel.ch_queue =
malloc(sizeof(struct ata_queue), M_DEVBUF, M_NOWAIT);
cp->ata_channel.ch_ndrive = 2;
if (cp->ata_channel.ch_queue == NULL) {
aprint_error("%s %s channel: "
"can't allocate memory for command queue",
device_xname(sc->sc_wdcdev.sc_atac.atac_dev), cp->name);
return (0);
}
return (1);
}
static void
sii3114_mapchan(struct pciide_channel *cp)
{
struct ata_channel *wdc_cp = &cp->ata_channel;
struct pciide_softc *sc = CHAN_TO_PCIIDE(wdc_cp);
struct wdc_regs *wdr = CHAN_TO_WDC_REGS(wdc_cp);
int i;
cp->compat = 0;
cp->ih = sc->sc_pci_ih;
wdr->cmd_iot = sc->sc_ba5_st;
if (bus_space_subregion(sc->sc_ba5_st, sc->sc_ba5_sh,
satalink_ba5_regmap[wdc_cp->ch_channel].ba5_IDE_TF0,
9, &wdr->cmd_baseioh) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't subregion %s cmd base\n", cp->name);
goto bad;
}
wdr->ctl_iot = sc->sc_ba5_st;
if (bus_space_subregion(sc->sc_ba5_st, sc->sc_ba5_sh,
satalink_ba5_regmap[wdc_cp->ch_channel].ba5_IDE_TF8,
1, &cp->ctl_baseioh) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't subregion %s ctl base\n", cp->name);
goto bad;
}
wdr->ctl_ioh = cp->ctl_baseioh;
for (i = 0; i < WDC_NREG; i++) {
if (bus_space_subregion(wdr->cmd_iot, wdr->cmd_baseioh,
i, i == 0 ? 4 : 1,
&wdr->cmd_iohs[i]) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't subregion %s channel cmd regs\n",
cp->name);
goto bad;
}
}
wdc_init_shadow_regs(wdc_cp);
wdr->data32iot = wdr->cmd_iot;
wdr->data32ioh = wdr->cmd_iohs[0];
wdcattach(wdc_cp);
return;
bad:
cp->ata_channel.ch_flags |= ATACH_DISABLED;
}
static void
sii3114_chip_map(struct pciide_softc *sc, struct pci_attach_args *pa)
{
struct pciide_channel *cp;
pcireg_t scs_cmd;
pci_intr_handle_t intrhandle;
const char *intrstr;
int channel;
if (pciide_chipen(sc, pa) == 0)
return;
#define SII3114_RESET_BITS \
(SCS_CMD_PBM_RESET | SCS_CMD_ARB_RESET | \
SCS_CMD_FF1_RESET | SCS_CMD_FF0_RESET | \
SCS_CMD_FF3_RESET | SCS_CMD_FF2_RESET | \
SCS_CMD_IDE1_RESET | SCS_CMD_IDE0_RESET | \
SCS_CMD_IDE3_RESET | SCS_CMD_IDE2_RESET)
/*
* Reset everything and then unblock all of the interrupts.
*/
scs_cmd = pci_conf_read(pa->pa_pc, pa->pa_tag, SII3112_SCS_CMD);
pci_conf_write(pa->pa_pc, pa->pa_tag, SII3112_SCS_CMD,
scs_cmd | SII3114_RESET_BITS);
delay(50 * 1000);
pci_conf_write(pa->pa_pc, pa->pa_tag, SII3112_SCS_CMD,
scs_cmd & SCS_CMD_M66EN);
delay(50 * 1000);
/*
* On the 3114, the BA5 register space is always enabled. In
* order to use the 3114 in any sane way, we must use this BA5
* register space, and so we consider it an error if we cannot
* map it.
*
* As a consequence of using BA5, our register mapping is different
* from a normal PCI IDE controller's, and so we are unable to use
* most of the common PCI IDE register mapping functions.
*/
if (pci_mapreg_map(pa, PCI_MAPREG_START + 0x14,
PCI_MAPREG_TYPE_MEM|
PCI_MAPREG_MEM_TYPE_32BIT, 0,
&sc->sc_ba5_st, &sc->sc_ba5_sh,
NULL, NULL) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"unable to map SATALink BA5 register space\n");
return;
}
sc->sc_ba5_en = 1;
aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"%dMHz PCI bus\n", (scs_cmd & SCS_CMD_M66EN) ? 66 : 33);
/*
* Set the Interrupt Steering bit in the IDEDMA_CMD register of
* channel 2. This is required at all times for proper operation
* when using the BA5 register space (otherwise interrupts from
* all 4 channels won't work).
*/
BA5_WRITE_4(sc, 2, ba5_IDEDMA_CMD, IDEDMA_CMD_INT_STEER);
aprint_verbose_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"bus-master DMA support present");
sii3114_mapreg_dma(sc, pa);
aprint_verbose("\n");
sii_fixup_cacheline(sc, pa, 4);
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DATA16 | ATAC_CAP_DATA32;
sc->sc_wdcdev.sc_atac.atac_pio_cap = 4;
if (sc->sc_dma_ok) {
sc->sc_wdcdev.sc_atac.atac_cap |= ATAC_CAP_DMA | ATAC_CAP_UDMA;
sc->sc_wdcdev.irqack = pciide_irqack;
sc->sc_wdcdev.sc_atac.atac_dma_cap = 2;
sc->sc_wdcdev.sc_atac.atac_udma_cap = 6;
}
sc->sc_wdcdev.sc_atac.atac_set_modes = sii3112_setup_channel;
/* We can use SControl and SStatus to probe for drives. */
sc->sc_wdcdev.sc_atac.atac_probe = sii3112_drv_probe;
sc->sc_wdcdev.sc_atac.atac_channels = sc->wdc_chanarray;
sc->sc_wdcdev.sc_atac.atac_nchannels = 4;
wdc_allocate_regs(&sc->sc_wdcdev);
/* Map and establish the interrupt handler. */
if (pci_intr_map(pa, &intrhandle) != 0) {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't map native-PCI interrupt\n");
return;
}
intrstr = pci_intr_string(pa->pa_pc, intrhandle);
sc->sc_pci_ih = pci_intr_establish(pa->pa_pc, intrhandle, IPL_BIO,
/* XXX */
pciide_pci_intr, sc);
if (sc->sc_pci_ih != NULL) {
aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"using %s for native-PCI interrupt\n",
intrstr ? intrstr : "unknown interrupt");
} else {
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"couldn't establish native-PCI interrupt");
if (intrstr != NULL)
aprint_normal(" at %s", intrstr);
aprint_normal("\n");
return;
}
for (channel = 0; channel < sc->sc_wdcdev.sc_atac.atac_nchannels;
channel++) {
cp = &sc->pciide_channels[channel];
if (sii3114_chansetup(sc, channel) == 0)
continue;
sii3114_mapchan(cp);
}
}
/* Probe the drives using SATA registers.
* Note we can't use wdc_sataprobe as we may not be able to map ba5
*/
static void
sii3112_drv_probe(struct ata_channel *chp)
{
struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
struct wdc_regs *wdr = CHAN_TO_WDC_REGS(chp);
uint32_t scontrol, sstatus;
uint8_t scnt, sn, cl, ch;
int i, s;
/* XXX This should be done by other code. */
for (i = 0; i < 2; i++) {
chp->ch_drive[i].chnl_softc = chp;
chp->ch_drive[i].drive = i;
}
/*
* The 3112 is a 2-port part, and only has one drive per channel
* (each port emulates a master drive).
*
* The 3114 is similar, but has 4 channels.
*/
/*
* Request communication initialization sequence, any speed.
* Performing this is the equivalent of an ATA Reset.
*/
scontrol = SControl_DET_INIT | SControl_SPD_ANY;
/*
* XXX We don't yet support SATA power management; disable all
* power management state transitions.
*/
scontrol |= SControl_IPM_NONE;
BA5_WRITE_4(sc, chp->ch_channel, ba5_SControl, scontrol);
delay(50 * 1000);
scontrol &= ~SControl_DET_INIT;
BA5_WRITE_4(sc, chp->ch_channel, ba5_SControl, scontrol);
delay(50 * 1000);
sstatus = BA5_READ_4(sc, chp->ch_channel, ba5_SStatus);
#if 0
aprint_normal_dev(&sc->sc_wdcdev.sc_atac.atac_dev,
"port %d: SStatus=0x%08x, SControl=0x%08x\n",
chp->ch_channel, sstatus,
BA5_READ_4(sc, chp->ch_channel, ba5_SControl));
#endif
switch (sstatus & SStatus_DET_mask) {
case SStatus_DET_NODEV:
/* No device; be silent. */
break;
case SStatus_DET_DEV_NE:
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"port %d: device connected, but "
"communication not established\n", chp->ch_channel);
break;
case SStatus_DET_OFFLINE:
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"port %d: PHY offline\n", chp->ch_channel);
break;
case SStatus_DET_DEV:
/*
* XXX ATAPI detection doesn't currently work. Don't
* XXX know why. But, it's not like the standard method
* XXX can detect an ATAPI device connected via a SATA/PATA
* XXX bridge, so at least this is no worse. --thorpej
*/
bus_space_write_1(wdr->cmd_iot, wdr->cmd_iohs[wd_sdh], 0,
WDSD_IBM | (0 << 4));
delay(10); /* 400ns delay */
/* Save register contents. */
scnt = bus_space_read_1(wdr->cmd_iot,
wdr->cmd_iohs[wd_seccnt], 0);
sn = bus_space_read_1(wdr->cmd_iot,
wdr->cmd_iohs[wd_sector], 0);
cl = bus_space_read_1(wdr->cmd_iot,
wdr->cmd_iohs[wd_cyl_lo], 0);
ch = bus_space_read_1(wdr->cmd_iot,
wdr->cmd_iohs[wd_cyl_hi], 0);
#if 0
printf("%s: port %d: scnt=0x%x sn=0x%x cl=0x%x ch=0x%x\n",
device_xname(&sc->sc_wdcdev.sc_atac.atac_dev), chp->ch_channel,
scnt, sn, cl, ch);
#endif
/*
* scnt and sn are supposed to be 0x1 for ATAPI, but in some
* cases we get wrong values here, so ignore it.
*/
s = splbio();
if (cl == 0x14 && ch == 0xeb)
chp->ch_drive[0].drive_flags |= DRIVE_ATAPI;
else
chp->ch_drive[0].drive_flags |= DRIVE_ATA;
splx(s);
aprint_normal_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"port %d: device present, speed: %s\n",
chp->ch_channel,
sata_speed(sstatus));
break;
default:
aprint_error_dev(sc->sc_wdcdev.sc_atac.atac_dev,
"port %d: unknown SStatus: 0x%08x\n",
chp->ch_channel, sstatus);
}
}
static void
sii3112_setup_channel(struct ata_channel *chp)
{
struct ata_drive_datas *drvp;
int drive, s;
u_int32_t idedma_ctl, dtm;
struct pciide_channel *cp = CHAN_TO_PCHAN(chp);
struct pciide_softc *sc = CHAN_TO_PCIIDE(chp);
/* setup DMA if needed */
pciide_channel_dma_setup(cp);
idedma_ctl = 0;
dtm = 0;
for (drive = 0; drive < 2; drive++) {
drvp = &chp->ch_drive[drive];
/* If no drive, skip */
if ((drvp->drive_flags & DRIVE) == 0)
continue;
if (drvp->drive_flags & DRIVE_UDMA) {
/* use Ultra/DMA */
s = splbio();
drvp->drive_flags &= ~DRIVE_DMA;
splx(s);
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
dtm |= DTM_IDEx_DMA;
} else if (drvp->drive_flags & DRIVE_DMA) {
idedma_ctl |= IDEDMA_CTL_DRV_DMA(drive);
dtm |= DTM_IDEx_DMA;
} else {
dtm |= DTM_IDEx_PIO;
}
}
/*
* Nothing to do to setup modes; it is meaningless in S-ATA
* (but many S-ATA drives still want to get the SET_FEATURE
* command).
*/
if (idedma_ctl != 0) {
/* Add software bits in status register */
bus_space_write_1(sc->sc_dma_iot, cp->dma_iohs[IDEDMA_CTL], 0,
idedma_ctl);
}
BA5_WRITE_4(sc, chp->ch_channel, ba5_IDE_DTM, dtm);
}
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