2 * Support for IDE interfaces on Celleb platform
4 * (C) Copyright 2006 TOSHIBA CORPORATION
6 * This code is based on drivers/ide/pci/siimage.c:
7 * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org>
8 * Copyright (C) 2003 Red Hat <alan@redhat.com>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
25 #include <linux/types.h>
26 #include <linux/module.h>
27 #include <linux/pci.h>
28 #include <linux/delay.h>
29 #include <linux/hdreg.h>
30 #include <linux/ide.h>
31 #include <linux/init.h>
33 #define PCI_DEVICE_ID_TOSHIBA_SCC_ATA 0x01b4
35 #define SCC_PATA_NAME "scc IDE"
37 #define TDVHSEL_MASTER 0x00000001
38 #define TDVHSEL_SLAVE 0x00000004
40 #define MODE_JCUSFEN 0x00000080
42 #define CCKCTRL_ATARESET 0x00040000
43 #define CCKCTRL_BUFCNT 0x00020000
44 #define CCKCTRL_CRST 0x00010000
45 #define CCKCTRL_OCLKEN 0x00000100
46 #define CCKCTRL_ATACLKOEN 0x00000002
47 #define CCKCTRL_LCLKEN 0x00000001
49 #define QCHCD_IOS_SS 0x00000001
51 #define QCHSD_STPDIAG 0x00020000
53 #define INTMASK_MSK 0xD1000012
54 #define INTSTS_SERROR 0x80000000
55 #define INTSTS_PRERR 0x40000000
56 #define INTSTS_RERR 0x10000000
57 #define INTSTS_ICERR 0x01000000
58 #define INTSTS_BMSINT 0x00000010
59 #define INTSTS_BMHE 0x00000008
60 #define INTSTS_IOIRQS 0x00000004
61 #define INTSTS_INTRQ 0x00000002
62 #define INTSTS_ACTEINT 0x00000001
64 #define ECMODE_VALUE 0x01
66 static struct scc_ports {
67 unsigned long ctl, dma;
68 unsigned char hwif_id; /* for removing hwif from system */
69 } scc_ports[MAX_HWIFS];
71 /* PIO transfer mode table */
73 static unsigned long JCHSTtbl[2][7] = {
74 {0x0E, 0x05, 0x02, 0x03, 0x02, 0x00, 0x00}, /* 100MHz */
75 {0x13, 0x07, 0x04, 0x04, 0x03, 0x00, 0x00} /* 133MHz */
79 static unsigned long JCHHTtbl[2][7] = {
80 {0x0E, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00}, /* 100MHz */
81 {0x13, 0x03, 0x03, 0x03, 0x03, 0x00, 0x00} /* 133MHz */
85 static unsigned long JCHCTtbl[2][7] = {
86 {0x1D, 0x1D, 0x1C, 0x0B, 0x06, 0x00, 0x00}, /* 100MHz */
87 {0x27, 0x26, 0x26, 0x0E, 0x09, 0x00, 0x00} /* 133MHz */
91 /* DMA transfer mode table */
93 static unsigned long JCHDCTxtbl[2][7] = {
94 {0x0A, 0x06, 0x04, 0x03, 0x01, 0x00, 0x00}, /* 100MHz */
95 {0x0E, 0x09, 0x06, 0x04, 0x02, 0x01, 0x00} /* 133MHz */
99 static unsigned long JCSTWTxtbl[2][7] = {
100 {0x06, 0x04, 0x03, 0x02, 0x02, 0x02, 0x00}, /* 100MHz */
101 {0x09, 0x06, 0x04, 0x02, 0x02, 0x02, 0x02} /* 133MHz */
105 static unsigned long JCTSStbl[2][7] = {
106 {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00}, /* 100MHz */
107 {0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05} /* 133MHz */
111 static unsigned long JCENVTtbl[2][7] = {
112 {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x00}, /* 100MHz */
113 {0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02} /* 133MHz */
116 /* JCACTSELS/JCACTSELM */
117 static unsigned long JCACTSELtbl[2][7] = {
118 {0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x00}, /* 100MHz */
119 {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01} /* 133MHz */
123 static u8 scc_ide_inb(unsigned long port)
125 u32 data = in_be32((void*)port);
129 static u16 scc_ide_inw(unsigned long port)
131 u32 data = in_be32((void*)port);
135 static void scc_ide_insw(unsigned long port, void *addr, u32 count)
137 u16 *ptr = (u16 *)addr;
139 *ptr++ = le16_to_cpu(in_be32((void*)port));
143 static void scc_ide_insl(unsigned long port, void *addr, u32 count)
145 u16 *ptr = (u16 *)addr;
147 *ptr++ = le16_to_cpu(in_be32((void*)port));
148 *ptr++ = le16_to_cpu(in_be32((void*)port));
152 static void scc_ide_outb(u8 addr, unsigned long port)
154 out_be32((void*)port, addr);
157 static void scc_ide_outw(u16 addr, unsigned long port)
159 out_be32((void*)port, addr);
163 scc_ide_outbsync(ide_drive_t * drive, u8 addr, unsigned long port)
165 ide_hwif_t *hwif = HWIF(drive);
167 out_be32((void*)port, addr);
168 __asm__ __volatile__("eieio":::"memory");
169 in_be32((void*)(hwif->dma_base + 0x01c));
170 __asm__ __volatile__("eieio":::"memory");
174 scc_ide_outsw(unsigned long port, void *addr, u32 count)
176 u16 *ptr = (u16 *)addr;
178 out_be32((void*)port, cpu_to_le16(*ptr++));
183 scc_ide_outsl(unsigned long port, void *addr, u32 count)
185 u16 *ptr = (u16 *)addr;
187 out_be32((void*)port, cpu_to_le16(*ptr++));
188 out_be32((void*)port, cpu_to_le16(*ptr++));
193 * scc_ratemask - Compute available modes
196 * Compute the available speeds for the devices on the interface.
197 * Enforce UDMA33 as a limit if there is no 80pin cable present.
200 static u8 scc_ratemask(ide_drive_t *drive)
204 if (!eighty_ninty_three(drive))
205 mode = min(mode, (u8)1);
210 * scc_tuneproc - tune a drive PIO mode
211 * @drive: drive to tune
212 * @mode_wanted: the target operating mode
214 * Load the timing settings for this device mode into the
218 static void scc_tuneproc(ide_drive_t *drive, byte mode_wanted)
220 ide_hwif_t *hwif = HWIF(drive);
221 struct scc_ports *ports = ide_get_hwifdata(hwif);
222 unsigned long ctl_base = ports->ctl;
223 unsigned long cckctrl_port = ctl_base + 0xff0;
224 unsigned long piosht_port = ctl_base + 0x000;
225 unsigned long pioct_port = ctl_base + 0x004;
227 unsigned char speed = XFER_PIO_0;
230 mode_wanted = ide_get_best_pio_mode(drive, mode_wanted, 4, NULL);
231 switch (mode_wanted) {
250 reg = in_be32((void __iomem *)cckctrl_port);
251 if (reg & CCKCTRL_ATACLKOEN) {
252 offset = 1; /* 133MHz */
254 offset = 0; /* 100MHz */
256 reg = JCHSTtbl[offset][mode_wanted] << 16 | JCHHTtbl[offset][mode_wanted];
257 out_be32((void __iomem *)piosht_port, reg);
258 reg = JCHCTtbl[offset][mode_wanted];
259 out_be32((void __iomem *)pioct_port, reg);
261 ide_config_drive_speed(drive, speed);
265 * scc_tune_chipset - tune a drive DMA mode
266 * @drive: Drive to set up
267 * @xferspeed: speed we want to achieve
269 * Load the timing settings for this device mode into the
273 static int scc_tune_chipset(ide_drive_t *drive, byte xferspeed)
275 ide_hwif_t *hwif = HWIF(drive);
276 u8 speed = ide_rate_filter(scc_ratemask(drive), xferspeed);
277 struct scc_ports *ports = ide_get_hwifdata(hwif);
278 unsigned long ctl_base = ports->ctl;
279 unsigned long cckctrl_port = ctl_base + 0xff0;
280 unsigned long mdmact_port = ctl_base + 0x008;
281 unsigned long mcrcst_port = ctl_base + 0x00c;
282 unsigned long sdmact_port = ctl_base + 0x010;
283 unsigned long scrcst_port = ctl_base + 0x014;
284 unsigned long udenvt_port = ctl_base + 0x018;
285 unsigned long tdvhsel_port = ctl_base + 0x020;
286 int is_slave = (&hwif->drives[1] == drive);
289 unsigned long jcactsel;
291 reg = in_be32((void __iomem *)cckctrl_port);
292 if (reg & CCKCTRL_ATACLKOEN) {
293 offset = 1; /* 133MHz */
295 offset = 0; /* 100MHz */
324 jcactsel = JCACTSELtbl[offset][idx];
326 out_be32((void __iomem *)sdmact_port, JCHDCTxtbl[offset][idx]);
327 out_be32((void __iomem *)scrcst_port, JCSTWTxtbl[offset][idx]);
328 jcactsel = jcactsel << 2;
329 out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_SLAVE) | jcactsel);
331 out_be32((void __iomem *)mdmact_port, JCHDCTxtbl[offset][idx]);
332 out_be32((void __iomem *)mcrcst_port, JCSTWTxtbl[offset][idx]);
333 out_be32((void __iomem *)tdvhsel_port, (in_be32((void __iomem *)tdvhsel_port) & ~TDVHSEL_MASTER) | jcactsel);
335 reg = JCTSStbl[offset][idx] << 16 | JCENVTtbl[offset][idx];
336 out_be32((void __iomem *)udenvt_port, reg);
338 return ide_config_drive_speed(drive, speed);
342 * scc_config_chipset_for_dma - configure for DMA
343 * @drive: drive to configure
345 * Called by scc_config_drive_for_dma().
348 static int scc_config_chipset_for_dma(ide_drive_t *drive)
350 u8 speed = ide_dma_speed(drive, scc_ratemask(drive));
355 if (scc_tune_chipset(drive, speed))
358 return ide_dma_enable(drive);
362 * scc_configure_drive_for_dma - set up for DMA transfers
363 * @drive: drive we are going to set up
365 * Set up the drive for DMA, tune the controller and drive as
367 * If the drive isn't suitable for DMA or we hit other problems
368 * then we will drop down to PIO and set up PIO appropriately.
372 static int scc_config_drive_for_dma(ide_drive_t *drive)
374 if (ide_use_dma(drive) && scc_config_chipset_for_dma(drive))
377 if (ide_use_fast_pio(drive))
378 scc_tuneproc(drive, 4);
384 * scc_ide_dma_setup - begin a DMA phase
385 * @drive: target device
387 * Build an IDE DMA PRD (IDE speak for scatter gather table)
388 * and then set up the DMA transfer registers.
390 * Returns 0 on success. If a PIO fallback is required then 1
394 static int scc_dma_setup(ide_drive_t *drive)
396 ide_hwif_t *hwif = drive->hwif;
397 struct request *rq = HWGROUP(drive)->rq;
398 unsigned int reading;
406 /* fall back to pio! */
407 if (!ide_build_dmatable(drive, rq)) {
408 ide_map_sg(drive, rq);
413 out_be32((void __iomem *)hwif->dma_prdtable, hwif->dmatable_dma);
416 out_be32((void __iomem *)hwif->dma_command, reading);
418 /* read dma_status for INTR & ERROR flags */
419 dma_stat = in_be32((void __iomem *)hwif->dma_status);
421 /* clear INTR & ERROR flags */
422 out_be32((void __iomem *)hwif->dma_status, dma_stat|6);
423 drive->waiting_for_dma = 1;
429 * scc_ide_dma_end - Stop DMA
432 * Check and clear INT Status register.
433 * Then call __ide_dma_end().
436 static int scc_ide_dma_end(ide_drive_t * drive)
438 ide_hwif_t *hwif = HWIF(drive);
439 unsigned long intsts_port = hwif->dma_base + 0x014;
443 reg = in_be32((void __iomem *)intsts_port);
445 if (reg & INTSTS_SERROR) {
446 printk(KERN_WARNING "%s: SERROR\n", SCC_PATA_NAME);
447 out_be32((void __iomem *)intsts_port, INTSTS_SERROR|INTSTS_BMSINT);
449 out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
453 if (reg & INTSTS_PRERR) {
455 unsigned long ctl_base = hwif->config_data;
457 maea0 = in_be32((void __iomem *)(ctl_base + 0xF50));
458 maec0 = in_be32((void __iomem *)(ctl_base + 0xF54));
460 printk(KERN_WARNING "%s: PRERR [addr:%x cmd:%x]\n", SCC_PATA_NAME, maea0, maec0);
462 out_be32((void __iomem *)intsts_port, INTSTS_PRERR|INTSTS_BMSINT);
464 out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
468 if (reg & INTSTS_RERR) {
469 printk(KERN_WARNING "%s: Response Error\n", SCC_PATA_NAME);
470 out_be32((void __iomem *)intsts_port, INTSTS_RERR|INTSTS_BMSINT);
472 out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
476 if (reg & INTSTS_ICERR) {
477 out_be32((void __iomem *)hwif->dma_command, in_be32((void __iomem *)hwif->dma_command) & ~QCHCD_IOS_SS);
479 printk(KERN_WARNING "%s: Illegal Configuration\n", SCC_PATA_NAME);
480 out_be32((void __iomem *)intsts_port, INTSTS_ICERR|INTSTS_BMSINT);
484 if (reg & INTSTS_BMSINT) {
485 printk(KERN_WARNING "%s: Internal Bus Error\n", SCC_PATA_NAME);
486 out_be32((void __iomem *)intsts_port, INTSTS_BMSINT);
492 if (reg & INTSTS_BMHE) {
493 out_be32((void __iomem *)intsts_port, INTSTS_BMHE);
497 if (reg & INTSTS_ACTEINT) {
498 out_be32((void __iomem *)intsts_port, INTSTS_ACTEINT);
502 if (reg & INTSTS_IOIRQS) {
503 out_be32((void __iomem *)intsts_port, INTSTS_IOIRQS);
509 return __ide_dma_end(drive);
512 /* returns 1 if dma irq issued, 0 otherwise */
513 static int scc_dma_test_irq(ide_drive_t *drive)
515 ide_hwif_t *hwif = HWIF(drive);
516 u8 dma_stat = hwif->INB(hwif->dma_status);
518 /* return 1 if INTR asserted */
519 if ((dma_stat & 4) == 4)
522 /* Workaround for PTERADD: emulate DMA_INTR when
523 * - IDE_STATUS[ERR] = 1
524 * - INT_STATUS[INTRQ] = 1
525 * - DMA_STATUS[IORACTA] = 1
527 if (in_be32((void __iomem *)IDE_ALTSTATUS_REG) & ERR_STAT &&
528 in_be32((void __iomem *)(hwif->dma_base + 0x014)) & INTSTS_INTRQ &&
532 if (!drive->waiting_for_dma)
533 printk(KERN_WARNING "%s: (%s) called while not waiting\n",
534 drive->name, __FUNCTION__);
539 * setup_mmio_scc - map CTRL/BMID region
540 * @dev: PCI device we are configuring
545 static int setup_mmio_scc (struct pci_dev *dev, const char *name)
547 unsigned long ctl_base = pci_resource_start(dev, 0);
548 unsigned long dma_base = pci_resource_start(dev, 1);
549 unsigned long ctl_size = pci_resource_len(dev, 0);
550 unsigned long dma_size = pci_resource_len(dev, 1);
555 for (i = 0; i < MAX_HWIFS; i++) {
556 if (scc_ports[i].ctl == 0)
562 if (!request_mem_region(ctl_base, ctl_size, name)) {
563 printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME);
567 if (!request_mem_region(dma_base, dma_size, name)) {
568 printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME);
572 if ((ctl_addr = ioremap(ctl_base, ctl_size)) == NULL)
575 if ((dma_addr = ioremap(dma_base, dma_size)) == NULL)
579 scc_ports[i].ctl = (unsigned long)ctl_addr;
580 scc_ports[i].dma = (unsigned long)dma_addr;
581 pci_set_drvdata(dev, (void *) &scc_ports[i]);
588 release_mem_region(dma_base, dma_size);
590 release_mem_region(ctl_base, ctl_size);
596 * init_setup_scc - set up an SCC PATA Controller
600 * Perform the initial set up for this device.
603 static int __devinit init_setup_scc(struct pci_dev *dev, ide_pci_device_t *d)
605 unsigned long ctl_base;
606 unsigned long dma_base;
607 unsigned long cckctrl_port;
608 unsigned long intmask_port;
609 unsigned long mode_port;
610 unsigned long ecmode_port;
611 unsigned long dma_status_port;
613 struct scc_ports *ports;
616 rc = setup_mmio_scc(dev, d->name);
621 ports = pci_get_drvdata(dev);
622 ctl_base = ports->ctl;
623 dma_base = ports->dma;
624 cckctrl_port = ctl_base + 0xff0;
625 intmask_port = dma_base + 0x010;
626 mode_port = ctl_base + 0x024;
627 ecmode_port = ctl_base + 0xf00;
628 dma_status_port = dma_base + 0x004;
630 /* controller initialization */
632 out_be32((void*)cckctrl_port, reg);
633 reg |= CCKCTRL_ATACLKOEN;
634 out_be32((void*)cckctrl_port, reg);
635 reg |= CCKCTRL_LCLKEN | CCKCTRL_OCLKEN;
636 out_be32((void*)cckctrl_port, reg);
638 out_be32((void*)cckctrl_port, reg);
641 reg = in_be32((void*)cckctrl_port);
642 if (reg & CCKCTRL_CRST)
647 reg |= CCKCTRL_ATARESET;
648 out_be32((void*)cckctrl_port, reg);
650 out_be32((void*)ecmode_port, ECMODE_VALUE);
651 out_be32((void*)mode_port, MODE_JCUSFEN);
652 out_be32((void*)intmask_port, INTMASK_MSK);
654 return ide_setup_pci_device(dev, d);
658 * init_mmio_iops_scc - set up the iops for MMIO
659 * @hwif: interface to set up
663 static void __devinit init_mmio_iops_scc(ide_hwif_t *hwif)
665 struct pci_dev *dev = hwif->pci_dev;
666 struct scc_ports *ports = pci_get_drvdata(dev);
667 unsigned long dma_base = ports->dma;
669 ide_set_hwifdata(hwif, ports);
671 hwif->INB = scc_ide_inb;
672 hwif->INW = scc_ide_inw;
673 hwif->INSW = scc_ide_insw;
674 hwif->INSL = scc_ide_insl;
675 hwif->OUTB = scc_ide_outb;
676 hwif->OUTBSYNC = scc_ide_outbsync;
677 hwif->OUTW = scc_ide_outw;
678 hwif->OUTSW = scc_ide_outsw;
679 hwif->OUTSL = scc_ide_outsl;
681 hwif->io_ports[IDE_DATA_OFFSET] = dma_base + 0x20;
682 hwif->io_ports[IDE_ERROR_OFFSET] = dma_base + 0x24;
683 hwif->io_ports[IDE_NSECTOR_OFFSET] = dma_base + 0x28;
684 hwif->io_ports[IDE_SECTOR_OFFSET] = dma_base + 0x2c;
685 hwif->io_ports[IDE_LCYL_OFFSET] = dma_base + 0x30;
686 hwif->io_ports[IDE_HCYL_OFFSET] = dma_base + 0x34;
687 hwif->io_ports[IDE_SELECT_OFFSET] = dma_base + 0x38;
688 hwif->io_ports[IDE_STATUS_OFFSET] = dma_base + 0x3c;
689 hwif->io_ports[IDE_CONTROL_OFFSET] = dma_base + 0x40;
691 hwif->irq = hwif->pci_dev->irq;
692 hwif->dma_base = dma_base;
693 hwif->config_data = ports->ctl;
698 * init_iops_scc - set up iops
699 * @hwif: interface to set up
701 * Do the basic setup for the SCC hardware interface
702 * and then do the MMIO setup.
705 static void __devinit init_iops_scc(ide_hwif_t *hwif)
707 struct pci_dev *dev = hwif->pci_dev;
708 hwif->hwif_data = NULL;
709 if (pci_get_drvdata(dev) == NULL)
711 init_mmio_iops_scc(hwif);
715 * init_hwif_scc - set up hwif
716 * @hwif: interface to set up
718 * We do the basic set up of the interface structure. The SCC
719 * requires several custom handlers so we override the default
720 * ide DMA handlers appropriately.
723 static void __devinit init_hwif_scc(ide_hwif_t *hwif)
725 struct scc_ports *ports = ide_get_hwifdata(hwif);
727 ports->hwif_id = hwif->index;
729 hwif->dma_command = hwif->dma_base;
730 hwif->dma_status = hwif->dma_base + 0x04;
731 hwif->dma_prdtable = hwif->dma_base + 0x08;
734 out_be32((void __iomem *)(hwif->dma_base + 0x018), hwif->dmatable_dma);
736 hwif->dma_setup = scc_dma_setup;
737 hwif->ide_dma_end = scc_ide_dma_end;
738 hwif->speedproc = scc_tune_chipset;
739 hwif->tuneproc = scc_tuneproc;
740 hwif->ide_dma_check = scc_config_drive_for_dma;
741 hwif->ide_dma_test_irq = scc_dma_test_irq;
743 hwif->drives[0].autotune = IDE_TUNE_AUTO;
744 hwif->drives[1].autotune = IDE_TUNE_AUTO;
746 if (in_be32((void __iomem *)(hwif->config_data + 0xff0)) & CCKCTRL_ATACLKOEN) {
747 hwif->ultra_mask = 0x7f; /* 133MHz */
749 hwif->ultra_mask = 0x3f; /* 100MHz */
751 hwif->mwdma_mask = 0x00;
752 hwif->swdma_mask = 0x00;
755 /* we support 80c cable only. */
761 hwif->drives[0].autodma = hwif->autodma;
762 hwif->drives[1].autodma = hwif->autodma;
765 #define DECLARE_SCC_DEV(name_str) \
768 .init_setup = init_setup_scc, \
769 .init_iops = init_iops_scc, \
770 .init_hwif = init_hwif_scc, \
772 .autodma = AUTODMA, \
773 .bootable = ON_BOARD, \
776 static ide_pci_device_t scc_chipsets[] __devinitdata = {
777 /* 0 */ DECLARE_SCC_DEV("sccIDE"),
781 * scc_init_one - pci layer discovery entry
783 * @id: ident table entry
785 * Called by the PCI code when it finds an SCC PATA controller.
786 * We then use the IDE PCI generic helper to do most of the work.
789 static int __devinit scc_init_one(struct pci_dev *dev, const struct pci_device_id *id)
791 ide_pci_device_t *d = &scc_chipsets[id->driver_data];
792 return d->init_setup(dev, d);
796 * scc_remove - pci layer remove entry
799 * Called by the PCI code when it removes an SCC PATA controller.
802 static void __devexit scc_remove(struct pci_dev *dev)
804 struct scc_ports *ports = pci_get_drvdata(dev);
805 ide_hwif_t *hwif = &ide_hwifs[ports->hwif_id];
806 unsigned long ctl_base = pci_resource_start(dev, 0);
807 unsigned long dma_base = pci_resource_start(dev, 1);
808 unsigned long ctl_size = pci_resource_len(dev, 0);
809 unsigned long dma_size = pci_resource_len(dev, 1);
811 if (hwif->dmatable_cpu) {
812 pci_free_consistent(hwif->pci_dev,
813 PRD_ENTRIES * PRD_BYTES,
816 hwif->dmatable_cpu = NULL;
819 ide_unregister(hwif->index);
821 hwif->chipset = ide_unknown;
822 iounmap((void*)ports->dma);
823 iounmap((void*)ports->ctl);
824 release_mem_region(dma_base, dma_size);
825 release_mem_region(ctl_base, ctl_size);
826 memset(ports, 0, sizeof(*ports));
829 static struct pci_device_id scc_pci_tbl[] = {
830 { PCI_VENDOR_ID_TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_SCC_ATA, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
833 MODULE_DEVICE_TABLE(pci, scc_pci_tbl);
835 static struct pci_driver driver = {
837 .id_table = scc_pci_tbl,
838 .probe = scc_init_one,
839 .remove = scc_remove,
842 static int scc_ide_init(void)
844 return ide_pci_register_driver(&driver);
847 module_init(scc_ide_init);
849 static void scc_ide_exit(void)
851 ide_pci_unregister_driver(&driver);
853 module_exit(scc_ide_exit);
857 MODULE_DESCRIPTION("PCI driver module for Toshiba SCC IDE");
858 MODULE_LICENSE("GPL");