diff options
Diffstat (limited to 'drivers/ata/sata_promise.c')
| -rw-r--r-- | drivers/ata/sata_promise.c | 844 |
1 files changed, 844 insertions, 0 deletions
diff --git a/drivers/ata/sata_promise.c b/drivers/ata/sata_promise.c new file mode 100644 index 000000000000..a5b3a7db7a9f --- /dev/null +++ b/drivers/ata/sata_promise.c @@ -0,0 +1,844 @@ +/* + * sata_promise.c - Promise SATA + * + * Maintained by: Jeff Garzik <jgarzik@pobox.com> + * Please ALWAYS copy linux-ide@vger.kernel.org + * on emails. + * + * Copyright 2003-2004 Red Hat, Inc. + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * libata documentation is available via 'make {ps|pdf}docs', + * as Documentation/DocBook/libata.* + * + * Hardware information only available under NDA. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/blkdev.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/sched.h> +#include <linux/device.h> +#include <scsi/scsi_host.h> +#include <scsi/scsi_cmnd.h> +#include <linux/libata.h> +#include <asm/io.h> +#include "sata_promise.h" + +#define DRV_NAME "sata_promise" +#define DRV_VERSION "1.04" + + +enum { + PDC_PKT_SUBMIT = 0x40, /* Command packet pointer addr */ + PDC_INT_SEQMASK = 0x40, /* Mask of asserted SEQ INTs */ + PDC_TBG_MODE = 0x41, /* TBG mode */ + PDC_FLASH_CTL = 0x44, /* Flash control register */ + PDC_PCI_CTL = 0x48, /* PCI control and status register */ + PDC_GLOBAL_CTL = 0x48, /* Global control/status (per port) */ + PDC_CTLSTAT = 0x60, /* IDE control and status (per port) */ + PDC_SATA_PLUG_CSR = 0x6C, /* SATA Plug control/status reg */ + PDC2_SATA_PLUG_CSR = 0x60, /* SATAII Plug control/status reg */ + PDC_SLEW_CTL = 0x470, /* slew rate control reg */ + + PDC_ERR_MASK = (1<<19) | (1<<20) | (1<<21) | (1<<22) | + (1<<8) | (1<<9) | (1<<10), + + board_2037x = 0, /* FastTrak S150 TX2plus */ + board_20319 = 1, /* FastTrak S150 TX4 */ + board_20619 = 2, /* FastTrak TX4000 */ + board_20771 = 3, /* FastTrak TX2300 */ + board_2057x = 4, /* SATAII150 Tx2plus */ + board_40518 = 5, /* SATAII150 Tx4 */ + + PDC_HAS_PATA = (1 << 1), /* PDC20375/20575 has PATA */ + + PDC_RESET = (1 << 11), /* HDMA reset */ + + PDC_COMMON_FLAGS = ATA_FLAG_NO_LEGACY | ATA_FLAG_SRST | + ATA_FLAG_MMIO | ATA_FLAG_NO_ATAPI | + ATA_FLAG_PIO_POLLING, +}; + + +struct pdc_port_priv { + u8 *pkt; + dma_addr_t pkt_dma; +}; + +struct pdc_host_priv { + int hotplug_offset; +}; + +static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg); +static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val); +static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent); +static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *regs); +static void pdc_eng_timeout(struct ata_port *ap); +static int pdc_port_start(struct ata_port *ap); +static void pdc_port_stop(struct ata_port *ap); +static void pdc_pata_phy_reset(struct ata_port *ap); +static void pdc_sata_phy_reset(struct ata_port *ap); +static void pdc_qc_prep(struct ata_queued_cmd *qc); +static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf); +static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf); +static void pdc_irq_clear(struct ata_port *ap); +static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc); +static void pdc_host_stop(struct ata_host_set *host_set); + + +static struct scsi_host_template pdc_ata_sht = { + .module = THIS_MODULE, + .name = DRV_NAME, + .ioctl = ata_scsi_ioctl, + .queuecommand = ata_scsi_queuecmd, + .can_queue = ATA_DEF_QUEUE, + .this_id = ATA_SHT_THIS_ID, + .sg_tablesize = LIBATA_MAX_PRD, + .cmd_per_lun = ATA_SHT_CMD_PER_LUN, + .emulated = ATA_SHT_EMULATED, + .use_clustering = ATA_SHT_USE_CLUSTERING, + .proc_name = DRV_NAME, + .dma_boundary = ATA_DMA_BOUNDARY, + .slave_configure = ata_scsi_slave_config, + .slave_destroy = ata_scsi_slave_destroy, + .bios_param = ata_std_bios_param, +}; + +static const struct ata_port_operations pdc_sata_ops = { + .port_disable = ata_port_disable, + .tf_load = pdc_tf_load_mmio, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = pdc_exec_command_mmio, + .dev_select = ata_std_dev_select, + + .phy_reset = pdc_sata_phy_reset, + + .qc_prep = pdc_qc_prep, + .qc_issue = pdc_qc_issue_prot, + .eng_timeout = pdc_eng_timeout, + .data_xfer = ata_mmio_data_xfer, + .irq_handler = pdc_interrupt, + .irq_clear = pdc_irq_clear, + + .scr_read = pdc_sata_scr_read, + .scr_write = pdc_sata_scr_write, + .port_start = pdc_port_start, + .port_stop = pdc_port_stop, + .host_stop = pdc_host_stop, +}; + +static const struct ata_port_operations pdc_pata_ops = { + .port_disable = ata_port_disable, + .tf_load = pdc_tf_load_mmio, + .tf_read = ata_tf_read, + .check_status = ata_check_status, + .exec_command = pdc_exec_command_mmio, + .dev_select = ata_std_dev_select, + + .phy_reset = pdc_pata_phy_reset, + + .qc_prep = pdc_qc_prep, + .qc_issue = pdc_qc_issue_prot, + .data_xfer = ata_mmio_data_xfer, + .eng_timeout = pdc_eng_timeout, + .irq_handler = pdc_interrupt, + .irq_clear = pdc_irq_clear, + + .port_start = pdc_port_start, + .port_stop = pdc_port_stop, + .host_stop = pdc_host_stop, +}; + +static const struct ata_port_info pdc_port_info[] = { + /* board_2037x */ + { + .sht = &pdc_ata_sht, + .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, + .pio_mask = 0x1f, /* pio0-4 */ + .mwdma_mask = 0x07, /* mwdma0-2 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &pdc_sata_ops, + }, + + /* board_20319 */ + { + .sht = &pdc_ata_sht, + .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, + .pio_mask = 0x1f, /* pio0-4 */ + .mwdma_mask = 0x07, /* mwdma0-2 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &pdc_sata_ops, + }, + + /* board_20619 */ + { + .sht = &pdc_ata_sht, + .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SLAVE_POSS, + .pio_mask = 0x1f, /* pio0-4 */ + .mwdma_mask = 0x07, /* mwdma0-2 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &pdc_pata_ops, + }, + + /* board_20771 */ + { + .sht = &pdc_ata_sht, + .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, + .pio_mask = 0x1f, /* pio0-4 */ + .mwdma_mask = 0x07, /* mwdma0-2 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &pdc_sata_ops, + }, + + /* board_2057x */ + { + .sht = &pdc_ata_sht, + .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, + .pio_mask = 0x1f, /* pio0-4 */ + .mwdma_mask = 0x07, /* mwdma0-2 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &pdc_sata_ops, + }, + + /* board_40518 */ + { + .sht = &pdc_ata_sht, + .host_flags = PDC_COMMON_FLAGS | ATA_FLAG_SATA, + .pio_mask = 0x1f, /* pio0-4 */ + .mwdma_mask = 0x07, /* mwdma0-2 */ + .udma_mask = 0x7f, /* udma0-6 ; FIXME */ + .port_ops = &pdc_sata_ops, + }, +}; + +static const struct pci_device_id pdc_ata_pci_tbl[] = { + { PCI_VENDOR_ID_PROMISE, 0x3371, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3570, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3571, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3373, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3375, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3376, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + { PCI_VENDOR_ID_PROMISE, 0x3574, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2057x }, + { PCI_VENDOR_ID_PROMISE, 0x3d75, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2057x }, + { PCI_VENDOR_ID_PROMISE, 0x3d73, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_2037x }, + + { PCI_VENDOR_ID_PROMISE, 0x3318, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20319 }, + { PCI_VENDOR_ID_PROMISE, 0x3319, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20319 }, + { PCI_VENDOR_ID_PROMISE, 0x3515, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20319 }, + { PCI_VENDOR_ID_PROMISE, 0x3519, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20319 }, + { PCI_VENDOR_ID_PROMISE, 0x3d17, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20319 }, + { PCI_VENDOR_ID_PROMISE, 0x3d18, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_40518 }, + + { PCI_VENDOR_ID_PROMISE, 0x6629, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20619 }, + +/* TODO: remove all associated board_20771 code, as it completely + * duplicates board_2037x code, unless reason for separation can be + * divined. + */ +#if 0 + { PCI_VENDOR_ID_PROMISE, 0x3570, PCI_ANY_ID, PCI_ANY_ID, 0, 0, + board_20771 }, +#endif + + { } /* terminate list */ +}; + + +static struct pci_driver pdc_ata_pci_driver = { + .name = DRV_NAME, + .id_table = pdc_ata_pci_tbl, + .probe = pdc_ata_init_one, + .remove = ata_pci_remove_one, +}; + + +static int pdc_port_start(struct ata_port *ap) +{ + struct device *dev = ap->host_set->dev; + struct pdc_port_priv *pp; + int rc; + + rc = ata_port_start(ap); + if (rc) + return rc; + + pp = kzalloc(sizeof(*pp), GFP_KERNEL); + if (!pp) { + rc = -ENOMEM; + goto err_out; + } + + pp->pkt = dma_alloc_coherent(dev, 128, &pp->pkt_dma, GFP_KERNEL); + if (!pp->pkt) { + rc = -ENOMEM; + goto err_out_kfree; + } + + ap->private_data = pp; + + return 0; + +err_out_kfree: + kfree(pp); +err_out: + ata_port_stop(ap); + return rc; +} + + +static void pdc_port_stop(struct ata_port *ap) +{ + struct device *dev = ap->host_set->dev; + struct pdc_port_priv *pp = ap->private_data; + + ap->private_data = NULL; + dma_free_coherent(dev, 128, pp->pkt, pp->pkt_dma); + kfree(pp); + ata_port_stop(ap); +} + + +static void pdc_host_stop(struct ata_host_set *host_set) +{ + struct pdc_host_priv *hp = host_set->private_data; + + ata_pci_host_stop(host_set); + + kfree(hp); +} + + +static void pdc_reset_port(struct ata_port *ap) +{ + void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_CTLSTAT; + unsigned int i; + u32 tmp; + + for (i = 11; i > 0; i--) { + tmp = readl(mmio); + if (tmp & PDC_RESET) + break; + + udelay(100); + + tmp |= PDC_RESET; + writel(tmp, mmio); + } + + tmp &= ~PDC_RESET; + writel(tmp, mmio); + readl(mmio); /* flush */ +} + +static void pdc_sata_phy_reset(struct ata_port *ap) +{ + pdc_reset_port(ap); + sata_phy_reset(ap); +} + +static void pdc_pata_cbl_detect(struct ata_port *ap) +{ + u8 tmp; + void __iomem *mmio = (void *) ap->ioaddr.cmd_addr + PDC_CTLSTAT + 0x03; + + tmp = readb(mmio); + + if (tmp & 0x01) { + ap->cbl = ATA_CBL_PATA40; + ap->udma_mask &= ATA_UDMA_MASK_40C; + } else + ap->cbl = ATA_CBL_PATA80; +} + +static void pdc_pata_phy_reset(struct ata_port *ap) +{ + pdc_pata_cbl_detect(ap); + pdc_reset_port(ap); + ata_port_probe(ap); + ata_bus_reset(ap); +} + +static u32 pdc_sata_scr_read (struct ata_port *ap, unsigned int sc_reg) +{ + if (sc_reg > SCR_CONTROL) + return 0xffffffffU; + return readl((void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); +} + + +static void pdc_sata_scr_write (struct ata_port *ap, unsigned int sc_reg, + u32 val) +{ + if (sc_reg > SCR_CONTROL) + return; + writel(val, (void __iomem *) ap->ioaddr.scr_addr + (sc_reg * 4)); +} + +static void pdc_qc_prep(struct ata_queued_cmd *qc) +{ + struct pdc_port_priv *pp = qc->ap->private_data; + unsigned int i; + + VPRINTK("ENTER\n"); + + switch (qc->tf.protocol) { + case ATA_PROT_DMA: + ata_qc_prep(qc); + /* fall through */ + + case ATA_PROT_NODATA: + i = pdc_pkt_header(&qc->tf, qc->ap->prd_dma, + qc->dev->devno, pp->pkt); + + if (qc->tf.flags & ATA_TFLAG_LBA48) + i = pdc_prep_lba48(&qc->tf, pp->pkt, i); + else + i = pdc_prep_lba28(&qc->tf, pp->pkt, i); + + pdc_pkt_footer(&qc->tf, pp->pkt, i); + break; + + default: + break; + } +} + +static void pdc_eng_timeout(struct ata_port *ap) +{ + struct ata_host_set *host_set = ap->host_set; + u8 drv_stat; + struct ata_queued_cmd *qc; + unsigned long flags; + + DPRINTK("ENTER\n"); + + spin_lock_irqsave(&host_set->lock, flags); + + qc = ata_qc_from_tag(ap, ap->active_tag); + + switch (qc->tf.protocol) { + case ATA_PROT_DMA: + case ATA_PROT_NODATA: + ata_port_printk(ap, KERN_ERR, "command timeout\n"); + drv_stat = ata_wait_idle(ap); + qc->err_mask |= __ac_err_mask(drv_stat); + break; + + default: + drv_stat = ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 1000); + + ata_port_printk(ap, KERN_ERR, + "unknown timeout, cmd 0x%x stat 0x%x\n", + qc->tf.command, drv_stat); + + qc->err_mask |= ac_err_mask(drv_stat); + break; + } + + spin_unlock_irqrestore(&host_set->lock, flags); + ata_eh_qc_complete(qc); + DPRINTK("EXIT\n"); +} + +static inline unsigned int pdc_host_intr( struct ata_port *ap, + struct ata_queued_cmd *qc) +{ + unsigned int handled = 0; + u32 tmp; + void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr + PDC_GLOBAL_CTL; + + tmp = readl(mmio); + if (tmp & PDC_ERR_MASK) { + qc->err_mask |= AC_ERR_DEV; + pdc_reset_port(ap); + } + + switch (qc->tf.protocol) { + case ATA_PROT_DMA: + case ATA_PROT_NODATA: + qc->err_mask |= ac_err_mask(ata_wait_idle(ap)); + ata_qc_complete(qc); + handled = 1; + break; + + default: + ap->stats.idle_irq++; + break; + } + + return handled; +} + +static void pdc_irq_clear(struct ata_port *ap) +{ + struct ata_host_set *host_set = ap->host_set; + void __iomem *mmio = host_set->mmio_base; + + readl(mmio + PDC_INT_SEQMASK); +} + +static irqreturn_t pdc_interrupt (int irq, void *dev_instance, struct pt_regs *regs) +{ + struct ata_host_set *host_set = dev_instance; + struct ata_port *ap; + u32 mask = 0; + unsigned int i, tmp; + unsigned int handled = 0; + void __iomem *mmio_base; + + VPRINTK("ENTER\n"); + + if (!host_set || !host_set->mmio_base) { + VPRINTK("QUICK EXIT\n"); + return IRQ_NONE; + } + + mmio_base = host_set->mmio_base; + + /* reading should also clear interrupts */ + mask = readl(mmio_base + PDC_INT_SEQMASK); + + if (mask == 0xffffffff) { + VPRINTK("QUICK EXIT 2\n"); + return IRQ_NONE; + } + + spin_lock(&host_set->lock); + + mask &= 0xffff; /* only 16 tags possible */ + if (!mask) { + VPRINTK("QUICK EXIT 3\n"); + goto done_irq; + } + + writel(mask, mmio_base + PDC_INT_SEQMASK); + + for (i = 0; i < host_set->n_ports; i++) { + VPRINTK("port %u\n", i); + ap = host_set->ports[i]; + tmp = mask & (1 << (i + 1)); + if (tmp && ap && + !(ap->flags & ATA_FLAG_DISABLED)) { + struct ata_queued_cmd *qc; + + qc = ata_qc_from_tag(ap, ap->active_tag); + if (qc && (!(qc->tf.flags & ATA_TFLAG_POLLING))) + handled += pdc_host_intr(ap, qc); + } + } + + VPRINTK("EXIT\n"); + +done_irq: + spin_unlock(&host_set->lock); + return IRQ_RETVAL(handled); +} + +static inline void pdc_packet_start(struct ata_queued_cmd *qc) +{ + struct ata_port *ap = qc->ap; + struct pdc_port_priv *pp = ap->private_data; + unsigned int port_no = ap->port_no; + u8 seq = (u8) (port_no + 1); + + VPRINTK("ENTER, ap %p\n", ap); + + writel(0x00000001, ap->host_set->mmio_base + (seq * 4)); + readl(ap->host_set->mmio_base + (seq * 4)); /* flush */ + + pp->pkt[2] = seq; + wmb(); /* flush PRD, pkt writes */ + writel(pp->pkt_dma, (void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); + readl((void __iomem *) ap->ioaddr.cmd_addr + PDC_PKT_SUBMIT); /* flush */ +} + +static unsigned int pdc_qc_issue_prot(struct ata_queued_cmd *qc) +{ + switch (qc->tf.protocol) { + case ATA_PROT_DMA: + case ATA_PROT_NODATA: + pdc_packet_start(qc); + return 0; + + case ATA_PROT_ATAPI_DMA: + BUG(); + break; + + default: + break; + } + + return ata_qc_issue_prot(qc); +} + +static void pdc_tf_load_mmio(struct ata_port *ap, const struct ata_taskfile *tf) +{ + WARN_ON (tf->protocol == ATA_PROT_DMA || + tf->protocol == ATA_PROT_NODATA); + ata_tf_load(ap, tf); +} + + +static void pdc_exec_command_mmio(struct ata_port *ap, const struct ata_taskfile *tf) +{ + WARN_ON (tf->protocol == ATA_PROT_DMA || + tf->protocol == ATA_PROT_NODATA); + ata_exec_command(ap, tf); +} + + +static void pdc_ata_setup_port(struct ata_ioports *port, unsigned long base) +{ + port->cmd_addr = base; + port->data_addr = base; + port->feature_addr = + port->error_addr = base + 0x4; + port->nsect_addr = base + 0x8; + port->lbal_addr = base + 0xc; + port->lbam_addr = base + 0x10; + port->lbah_addr = base + 0x14; + port->device_addr = base + 0x18; + port->command_addr = + port->status_addr = base + 0x1c; + port->altstatus_addr = + port->ctl_addr = base + 0x38; +} + + +static void pdc_host_init(unsigned int chip_id, struct ata_probe_ent *pe) +{ + void __iomem *mmio = pe->mmio_base; + struct pdc_host_priv *hp = pe->private_data; + int hotplug_offset = hp->hotplug_offset; + u32 tmp; + + /* + * Except for the hotplug stuff, this is voodoo from the + * Promise driver. Label this entire section + * "TODO: figure out why we do this" + */ + + /* change FIFO_SHD to 8 dwords, enable BMR_BURST */ + tmp = readl(mmio + PDC_FLASH_CTL); + tmp |= 0x12000; /* bit 16 (fifo 8 dw) and 13 (bmr burst?) */ + writel(tmp, mmio + PDC_FLASH_CTL); + + /* clear plug/unplug flags for all ports */ + tmp = readl(mmio + hotplug_offset); + writel(tmp | 0xff, mmio + hotplug_offset); + + /* mask plug/unplug ints */ + tmp = readl(mmio + hotplug_offset); + writel(tmp | 0xff0000, mmio + hotplug_offset); + + /* reduce TBG clock to 133 Mhz. */ + tmp = readl(mmio + PDC_TBG_MODE); + tmp &= ~0x30000; /* clear bit 17, 16*/ + tmp |= 0x10000; /* set bit 17:16 = 0:1 */ + writel(tmp, mmio + PDC_TBG_MODE); + + readl(mmio + PDC_TBG_MODE); /* flush */ + msleep(10); + + /* adjust slew rate control register. */ + tmp = readl(mmio + PDC_SLEW_CTL); + tmp &= 0xFFFFF03F; /* clear bit 11 ~ 6 */ + tmp |= 0x00000900; /* set bit 11-9 = 100b , bit 8-6 = 100 */ + writel(tmp, mmio + PDC_SLEW_CTL); +} + +static int pdc_ata_init_one (struct pci_dev *pdev, const struct pci_device_id *ent) +{ + static int printed_version; + struct ata_probe_ent *probe_ent = NULL; + struct pdc_host_priv *hp; + unsigned long base; + void __iomem *mmio_base; + unsigned int board_idx = (unsigned int) ent->driver_data; + int pci_dev_busy = 0; + int rc; + + if (!printed_version++) + dev_printk(KERN_DEBUG, &pdev->dev, "version " DRV_VERSION "\n"); + + rc = pci_enable_device(pdev); + if (rc) + return rc; + + rc = pci_request_regions(pdev, DRV_NAME); + if (rc) { + pci_dev_busy = 1; + goto err_out; + } + + rc = pci_set_dma_mask(pdev, ATA_DMA_MASK); + if (rc) + goto err_out_regions; + rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK); + if (rc) + goto err_out_regions; + + probe_ent = kzalloc(sizeof(*probe_ent), GFP_KERNEL); + if (probe_ent == NULL) { + rc = -ENOMEM; + goto err_out_regions; + } + + probe_ent->dev = pci_dev_to_dev(pdev); + INIT_LIST_HEAD(&probe_ent->node); + + mmio_base = pci_iomap(pdev, 3, 0); + if (mmio_base == NULL) { + rc = -ENOMEM; + goto err_out_free_ent; + } + base = (unsigned long) mmio_base; + + hp = kzalloc(sizeof(*hp), GFP_KERNEL); + if (hp == NULL) { + rc = -ENOMEM; + goto err_out_free_ent; + } + + /* Set default hotplug offset */ + hp->hotplug_offset = PDC_SATA_PLUG_CSR; + probe_ent->private_data = hp; + + probe_ent->sht = pdc_port_info[board_idx].sht; + probe_ent->host_flags = pdc_port_info[board_idx].host_flags; + probe_ent->pio_mask = pdc_port_info[board_idx].pio_mask; + probe_ent->mwdma_mask = pdc_port_info[board_idx].mwdma_mask; + probe_ent->udma_mask = pdc_port_info[board_idx].udma_mask; + probe_ent->port_ops = pdc_port_info[board_idx].port_ops; + + probe_ent->irq = pdev->irq; + probe_ent->irq_flags = IRQF_SHARED; + probe_ent->mmio_base = mmio_base; + + pdc_ata_setup_port(&probe_ent->port[0], base + 0x200); + pdc_ata_setup_port(&probe_ent->port[1], base + 0x280); + + probe_ent->port[0].scr_addr = base + 0x400; + probe_ent->port[1].scr_addr = base + 0x500; + + /* notice 4-port boards */ + switch (board_idx) { + case board_40518: + /* Override hotplug offset for SATAII150 */ + hp->hotplug_offset = PDC2_SATA_PLUG_CSR; + /* Fall through */ + case board_20319: + probe_ent->n_ports = 4; + + pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); + pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); + + probe_ent->port[2].scr_addr = base + 0x600; + probe_ent->port[3].scr_addr = base + 0x700; + break; + case board_2057x: + /* Override hotplug offset for SATAII150 */ + hp->hotplug_offset = PDC2_SATA_PLUG_CSR; + /* Fall through */ + case board_2037x: + probe_ent->n_ports = 2; + break; + case board_20771: + probe_ent->n_ports = 2; + break; + case board_20619: + probe_ent->n_ports = 4; + + pdc_ata_setup_port(&probe_ent->port[2], base + 0x300); + pdc_ata_setup_port(&probe_ent->port[3], base + 0x380); + + probe_ent->port[2].scr_addr = base + 0x600; + probe_ent->port[3].scr_addr = base + 0x700; + break; + default: + BUG(); + break; + } + + pci_set_master(pdev); + + /* initialize adapter */ + pdc_host_init(board_idx, probe_ent); + + /* FIXME: Need any other frees than hp? */ + if (!ata_device_add(probe_ent)) + kfree(hp); + + kfree(probe_ent); + + return 0; + +err_out_free_ent: + kfree(probe_ent); +err_out_regions: + pci_release_regions(pdev); +err_out: + if (!pci_dev_busy) + pci_disable_device(pdev); + return rc; +} + + +static int __init pdc_ata_init(void) +{ + return pci_register_driver(&pdc_ata_pci_driver); +} + + +static void __exit pdc_ata_exit(void) +{ + pci_unregister_driver(&pdc_ata_pci_driver); +} + + +MODULE_AUTHOR("Jeff Garzik"); +MODULE_DESCRIPTION("Promise ATA TX2/TX4/TX4000 low-level driver"); +MODULE_LICENSE("GPL"); +MODULE_DEVICE_TABLE(pci, pdc_ata_pci_tbl); +MODULE_VERSION(DRV_VERSION); + +module_init(pdc_ata_init); +module_exit(pdc_ata_exit); |