+++ /dev/null
-/*
- * 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);
git.openpandora.org / pandora-kernel.git / blobdiff