patch-2.4.21 linux-2.4.21/drivers/ide/serverworks.c
Next file: linux-2.4.21/drivers/ide/setup-pci.c
Previous file: linux-2.4.21/drivers/ide/rz1000.c
Back to the patch index
Back to the overall index
- Lines: 676
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.20/drivers/ide/serverworks.c
- Orig date:
2002-08-02 17:39:44.000000000 -0700
diff -urN linux-2.4.20/drivers/ide/serverworks.c linux-2.4.21/drivers/ide/serverworks.c
@@ -1,675 +0,0 @@
-/*
- * linux/drivers/ide/serverworks.c Version 0.3 26 Oct 2001
- *
- * May be copied or modified under the terms of the GNU General Public License
- *
- * Copyright (C) 1998-2000 Michel Aubry
- * Copyright (C) 1998-2000 Andrzej Krzysztofowicz
- * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org>
- * Portions copyright (c) 2001 Sun Microsystems
- *
- *
- * RCC/ServerWorks IDE driver for Linux
- *
- * OSB4: `Open South Bridge' IDE Interface (fn 1)
- * supports UDMA mode 2 (33 MB/s)
- *
- * CSB5: `Champion South Bridge' IDE Interface (fn 1)
- * all revisions support UDMA mode 4 (66 MB/s)
- * revision A2.0 and up support UDMA mode 5 (100 MB/s)
- *
- * *** The CSB5 does not provide ANY register ***
- * *** to detect 80-conductor cable presence. ***
- *
- *
- * here's the default lspci:
- *
- * 00:0f.1 IDE interface: ServerWorks: Unknown device 0211 (prog-if 8a [Master SecP PriP])
- * Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
- * Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
- * Latency: 255
- * Region 4: I/O ports at c200
- * 00: 66 11 11 02 05 01 00 02 00 8a 01 01 00 ff 80 00
- * 10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 20: 01 c2 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 40: 99 99 99 99 ff ff ff ff 0c 0c 00 00 00 00 00 00
- * 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- *
- * 00:0f.1 IDE interface: ServerWorks: Unknown device 0212 (rev 92) (prog-if 8a [Master SecP PriP])
- * Subsystem: ServerWorks: Unknown device 0212
- * Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
- * Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
- * Latency: 64, cache line size 08
- * Region 0: I/O ports at 01f0
- * Region 1: I/O ports at 03f4
- * Region 2: I/O ports at 0170
- * Region 3: I/O ports at 0374
- * Region 4: I/O ports at 08b0
- * Region 5: I/O ports at 1000
- *
- * 00:0f.1 IDE interface: ServerWorks: Unknown device 0212 (rev 92)
- * 00: 66 11 12 02 05 00 00 02 92 8a 01 01 08 40 80 00
- * 10: f1 01 00 00 f5 03 00 00 71 01 00 00 75 03 00 00
- * 20: b1 08 00 00 01 10 00 00 00 00 00 00 66 11 12 02
- * 30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 40: 4f 4f 4f 4f 20 ff ff ff f0 50 44 44 00 00 00 00
- * 50: 00 00 00 00 07 00 44 02 0f 04 03 00 00 00 00 00
- * 60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- * f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
- *
- *
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-
-#include <asm/io.h>
-
-#include "ide_modes.h"
-
-#define DISPLAY_SVWKS_TIMINGS 1
-#undef SVWKS_DEBUG_DRIVE_INFO
-
-#if defined(DISPLAY_SVWKS_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static struct pci_dev *bmide_dev;
-static byte svwks_revision = 0;
-
-static int svwks_get_info(char *, char **, off_t, int);
-extern int (*svwks_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-extern char *ide_media_verbose(ide_drive_t *);
-
-static int svwks_get_info (char *buffer, char **addr, off_t offset, int count)
-{
- char *p = buffer;
- u32 bibma = pci_resource_start(bmide_dev, 4);
- u32 reg40, reg44;
- u16 reg48, reg56;
- u8 reg54, c0=0, c1=0;
-
- pci_read_config_dword(bmide_dev, 0x40, ®40);
- pci_read_config_dword(bmide_dev, 0x44, ®44);
- pci_read_config_word(bmide_dev, 0x48, ®48);
- pci_read_config_byte(bmide_dev, 0x54, ®54);
- pci_read_config_word(bmide_dev, 0x56, ®56);
-
- /*
- * at that point bibma+0x2 et bibma+0xa are byte registers
- * to investigate:
- */
- c0 = inb_p((unsigned short)bibma + 0x02);
- c1 = inb_p((unsigned short)bibma + 0x0a);
-
- switch(bmide_dev->device) {
- case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE:
- p += sprintf(p, "\n "
- "ServerWorks CSB5 Chipset (rev %02x)\n",
- svwks_revision);
- break;
- case PCI_DEVICE_ID_SERVERWORKS_OSB4IDE:
- p += sprintf(p, "\n "
- "ServerWorks OSB4 Chipset (rev %02x)\n",
- svwks_revision);
- break;
- default:
- p += sprintf(p, "\n "
- "ServerWorks %04x Chipset (rev %02x)\n",
- bmide_dev->device, svwks_revision);
- break;
- }
-
- p += sprintf(p, "------------------------------- General Status ---------------------------------\n");
- p += sprintf(p, "--------------- Primary Channel ---------------- Secondary Channel -------------\n");
- p += sprintf(p, " %sabled %sabled\n",
- (c0&0x80) ? "dis" : " en",
- (c1&0x80) ? "dis" : " en");
- p += sprintf(p, "--------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------\n");
- p += sprintf(p, "DMA enabled: %s %s %s %s\n",
- (c0&0x20) ? "yes" : "no ",
- (c0&0x40) ? "yes" : "no ",
- (c1&0x20) ? "yes" : "no ",
- (c1&0x40) ? "yes" : "no " );
- p += sprintf(p, "UDMA enabled: %s %s %s %s\n",
- (reg54 & 0x01) ? "yes" : "no ",
- (reg54 & 0x02) ? "yes" : "no ",
- (reg54 & 0x04) ? "yes" : "no ",
- (reg54 & 0x08) ? "yes" : "no " );
- p += sprintf(p, "UDMA enabled: %s %s %s %s\n",
- ((reg56&0x0005)==0x0005)?"5":
- ((reg56&0x0004)==0x0004)?"4":
- ((reg56&0x0003)==0x0003)?"3":
- ((reg56&0x0002)==0x0002)?"2":
- ((reg56&0x0001)==0x0001)?"1":
- ((reg56&0x000F))?"?":"0",
- ((reg56&0x0050)==0x0050)?"5":
- ((reg56&0x0040)==0x0040)?"4":
- ((reg56&0x0030)==0x0030)?"3":
- ((reg56&0x0020)==0x0020)?"2":
- ((reg56&0x0010)==0x0010)?"1":
- ((reg56&0x00F0))?"?":"0",
- ((reg56&0x0500)==0x0500)?"5":
- ((reg56&0x0400)==0x0400)?"4":
- ((reg56&0x0300)==0x0300)?"3":
- ((reg56&0x0200)==0x0200)?"2":
- ((reg56&0x0100)==0x0100)?"1":
- ((reg56&0x0F00))?"?":"0",
- ((reg56&0x5000)==0x5000)?"5":
- ((reg56&0x4000)==0x4000)?"4":
- ((reg56&0x3000)==0x3000)?"3":
- ((reg56&0x2000)==0x2000)?"2":
- ((reg56&0x1000)==0x1000)?"1":
- ((reg56&0xF000))?"?":"0");
- p += sprintf(p, "DMA enabled: %s %s %s %s\n",
- ((reg44&0x00002000)==0x00002000)?"2":
- ((reg44&0x00002100)==0x00002100)?"1":
- ((reg44&0x00007700)==0x00007700)?"0":
- ((reg44&0x0000FF00)==0x0000FF00)?"X":"?",
- ((reg44&0x00000020)==0x00000020)?"2":
- ((reg44&0x00000021)==0x00000021)?"1":
- ((reg44&0x00000077)==0x00000077)?"0":
- ((reg44&0x000000FF)==0x000000FF)?"X":"?",
- ((reg44&0x20000000)==0x20000000)?"2":
- ((reg44&0x21000000)==0x21000000)?"1":
- ((reg44&0x77000000)==0x77000000)?"0":
- ((reg44&0xFF000000)==0xFF000000)?"X":"?",
- ((reg44&0x00200000)==0x00200000)?"2":
- ((reg44&0x00210000)==0x00210000)?"1":
- ((reg44&0x00770000)==0x00770000)?"0":
- ((reg44&0x00FF0000)==0x00FF0000)?"X":"?");
-
- p += sprintf(p, "PIO enabled: %s %s %s %s\n",
- ((reg40&0x00002000)==0x00002000)?"4":
- ((reg40&0x00002200)==0x00002200)?"3":
- ((reg40&0x00003400)==0x00003400)?"2":
- ((reg40&0x00004700)==0x00004700)?"1":
- ((reg40&0x00005D00)==0x00005D00)?"0":"?",
- ((reg40&0x00000020)==0x00000020)?"4":
- ((reg40&0x00000022)==0x00000022)?"3":
- ((reg40&0x00000034)==0x00000034)?"2":
- ((reg40&0x00000047)==0x00000047)?"1":
- ((reg40&0x0000005D)==0x0000005D)?"0":"?",
- ((reg40&0x20000000)==0x20000000)?"4":
- ((reg40&0x22000000)==0x22000000)?"3":
- ((reg40&0x34000000)==0x34000000)?"2":
- ((reg40&0x47000000)==0x47000000)?"1":
- ((reg40&0x5D000000)==0x5D000000)?"0":"?",
- ((reg40&0x00200000)==0x00200000)?"4":
- ((reg40&0x00220000)==0x00220000)?"3":
- ((reg40&0x00340000)==0x00340000)?"2":
- ((reg40&0x00470000)==0x00470000)?"1":
- ((reg40&0x005D0000)==0x005D0000)?"0":"?");
- return p-buffer; /* => must be less than 4k! */
-}
-#endif /* defined(DISPLAY_SVWKS_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */
-
-byte svwks_proc = 0;
-
-extern char *ide_xfer_verbose (byte xfer_rate);
-
-static struct pci_dev *isa_dev;
-
-static int svwks_tune_chipset (ide_drive_t *drive, byte speed)
-{
- byte udma_modes[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
- byte dma_modes[] = { 0x77, 0x21, 0x20 };
- byte pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 };
-
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- byte unit = (drive->select.b.unit & 0x01);
- byte csb5 = (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ? 1 : 0;
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
- unsigned long dma_base = hwif->dma_base;
-#endif /* CONFIG_BLK_DEV_IDEDMA */
- int err;
-
- byte drive_pci = 0x00;
- byte drive_pci2 = 0x00;
- byte drive_pci3 = hwif->channel ? 0x57 : 0x56;
-
- byte ultra_enable = 0x00;
- byte ultra_timing = 0x00;
- byte dma_timing = 0x00;
- byte pio_timing = 0x00;
- unsigned short csb5_pio = 0x00;
-
- byte pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
-
- switch (drive->dn) {
- case 0: drive_pci = 0x41; drive_pci2 = 0x45; break;
- case 1: drive_pci = 0x40; drive_pci2 = 0x44; break;
- case 2: drive_pci = 0x43; drive_pci2 = 0x47; break;
- case 3: drive_pci = 0x42; drive_pci2 = 0x46; break;
- default:
- return -1;
- }
-
- pci_read_config_byte(dev, drive_pci, &pio_timing);
- pci_read_config_byte(dev, drive_pci2, &dma_timing);
- pci_read_config_byte(dev, drive_pci3, &ultra_timing);
- pci_read_config_word(dev, 0x4A, &csb5_pio);
- pci_read_config_byte(dev, 0x54, &ultra_enable);
-
-#ifdef DEBUG
- printk("%s: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
- drive->name, ultra_timing, dma_timing, pio_timing);
-#endif
-
- pio_timing &= ~0xFF;
- dma_timing &= ~0xFF;
- ultra_timing &= ~(0x0F << (4*unit));
- ultra_enable &= ~(0x01 << drive->dn);
- csb5_pio &= ~(0x0F << (4*drive->dn));
-
- switch(speed) {
- case XFER_PIO_4:
- case XFER_PIO_3:
- case XFER_PIO_2:
- case XFER_PIO_1:
- case XFER_PIO_0:
- pio_timing |= pio_modes[speed - XFER_PIO_0];
- csb5_pio |= ((speed - XFER_PIO_0) << (4*drive->dn));
- break;
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
- case XFER_MW_DMA_2:
- case XFER_MW_DMA_1:
- case XFER_MW_DMA_0:
- pio_timing |= pio_modes[pio];
- csb5_pio |= (pio << (4*drive->dn));
- dma_timing |= dma_modes[speed - XFER_MW_DMA_0];
- break;
-
- case XFER_UDMA_5:
- case XFER_UDMA_4:
- case XFER_UDMA_3:
- case XFER_UDMA_2:
- case XFER_UDMA_1:
- case XFER_UDMA_0:
- pio_timing |= pio_modes[pio];
- csb5_pio |= (pio << (4*drive->dn));
- dma_timing |= dma_modes[2];
- ultra_timing |= ((udma_modes[speed - XFER_UDMA_0]) << (4*unit));
- ultra_enable |= (0x01 << drive->dn);
-#endif
- default:
- break;
- }
-
-#ifdef DEBUG
- printk("%s: UDMA 0x%02x DMAPIO 0x%02x PIO 0x%02x ",
- drive->name, ultra_timing, dma_timing, pio_timing);
-#endif
-
-#if SVWKS_DEBUG_DRIVE_INFO
- printk("%s: %s drive%d\n", drive->name, ide_xfer_verbose(speed), drive->dn);
-#endif /* SVWKS_DEBUG_DRIVE_INFO */
-
- if (!drive->init_speed)
- drive->init_speed = speed;
-
- pci_write_config_byte(dev, drive_pci, pio_timing);
- if (csb5)
- pci_write_config_word(dev, 0x4A, csb5_pio);
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
- pci_write_config_byte(dev, drive_pci2, dma_timing);
- pci_write_config_byte(dev, drive_pci3, ultra_timing);
- pci_write_config_byte(dev, 0x54, ultra_enable);
-
- if (speed > XFER_PIO_4)
- outb(inb(dma_base+2)|(1<<(5+unit)), dma_base+2);
- else
- outb(inb(dma_base+2) & ~(1<<(5+unit)), dma_base+2);
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
- err = ide_config_drive_speed(drive, speed);
- drive->current_speed = speed;
- return err;
-}
-
-static void config_chipset_for_pio (ide_drive_t *drive)
-{
- unsigned short eide_pio_timing[6] = {960, 480, 240, 180, 120, 90};
- unsigned short xfer_pio = drive->id->eide_pio_modes;
- byte timing, speed, pio;
-
- pio = ide_get_best_pio_mode(drive, 255, 5, NULL);
-
- if (xfer_pio> 4)
- xfer_pio = 0;
-
- if (drive->id->eide_pio_iordy > 0)
- for (xfer_pio = 5;
- xfer_pio>0 &&
- drive->id->eide_pio_iordy>eide_pio_timing[xfer_pio];
- xfer_pio--);
- else
- xfer_pio = (drive->id->eide_pio_modes & 4) ? 0x05 :
- (drive->id->eide_pio_modes & 2) ? 0x04 :
- (drive->id->eide_pio_modes & 1) ? 0x03 :
- (drive->id->tPIO & 2) ? 0x02 :
- (drive->id->tPIO & 1) ? 0x01 : xfer_pio;
-
- timing = (xfer_pio >= pio) ? xfer_pio : pio;
-
- switch(timing) {
- case 4: speed = XFER_PIO_4;break;
- case 3: speed = XFER_PIO_3;break;
- case 2: speed = XFER_PIO_2;break;
- case 1: speed = XFER_PIO_1;break;
- default:
- speed = (!drive->id->tPIO) ? XFER_PIO_0 : XFER_PIO_SLOW;
- break;
- }
- (void) svwks_tune_chipset(drive, speed);
- drive->current_speed = speed;
-}
-
-static void svwks_tune_drive (ide_drive_t *drive, byte pio)
-{
- byte speed;
- switch(pio) {
- case 4: speed = XFER_PIO_4;break;
- case 3: speed = XFER_PIO_3;break;
- case 2: speed = XFER_PIO_2;break;
- case 1: speed = XFER_PIO_1;break;
- default: speed = XFER_PIO_0;break;
- }
- (void) svwks_tune_chipset(drive, speed);
-}
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-static int config_chipset_for_dma (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- struct pci_dev *dev = HWIF(drive)->pci_dev;
- byte udma_66 = eighty_ninty_three(drive);
- int ultra66 = (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) ? 1 : 0;
- int ultra100 = (ultra66 && svwks_revision >= SVWKS_CSB5_REVISION_NEW) ? 1 : 0;
- byte speed;
-
- if ((id->dma_ultra & 0x0020) && (udma_66) && (ultra100)) {
- speed = XFER_UDMA_5;
- } else if (id->dma_ultra & 0x0010) {
- speed = ((udma_66) && (ultra66)) ? XFER_UDMA_4 : XFER_UDMA_2;
- } else if (id->dma_ultra & 0x0008) {
- speed = ((udma_66) && (ultra66)) ? XFER_UDMA_3 : XFER_UDMA_1;
- } else if (id->dma_ultra & 0x0004) {
- speed = XFER_UDMA_2;
- } else if (id->dma_ultra & 0x0002) {
- speed = XFER_UDMA_1;
- } else if (id->dma_ultra & 0x0001) {
- speed = XFER_UDMA_0;
- } else if (id->dma_mword & 0x0004) {
- speed = XFER_MW_DMA_2;
- } else if (id->dma_mword & 0x0002) {
- speed = XFER_MW_DMA_1;
- } else if (id->dma_1word & 0x0004) {
- speed = XFER_SW_DMA_2;
- } else {
- speed = XFER_PIO_0 + ide_get_best_pio_mode(drive, 255, 5, NULL);
- }
-
- (void) svwks_tune_chipset(drive, speed);
-
- return ((int) ((id->dma_ultra >> 11) & 7) ? ide_dma_on :
- ((id->dma_ultra >> 8) & 7) ? ide_dma_on :
- ((id->dma_mword >> 8) & 7) ? ide_dma_on :
- ((id->dma_1word >> 8) & 7) ? ide_dma_on :
- ide_dma_off_quietly);
-}
-
-static int config_drive_xfer_rate (ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- ide_dma_action_t dma_func = ide_dma_on;
-
- if (id && (id->capability & 1) && HWIF(drive)->autodma) {
- /* Consult the list of known "bad" drives */
- if (ide_dmaproc(ide_dma_bad_drive, drive)) {
- dma_func = ide_dma_off;
- goto fast_ata_pio;
- }
- dma_func = ide_dma_off_quietly;
- if (id->field_valid & 4) {
- if (id->dma_ultra & 0x003F) {
- /* Force if Capable UltraDMA */
- dma_func = config_chipset_for_dma(drive);
- if ((id->field_valid & 2) &&
- (dma_func != ide_dma_on))
- goto try_dma_modes;
- }
- } else if (id->field_valid & 2) {
-try_dma_modes:
- if ((id->dma_mword & 0x0007) ||
- (id->dma_1word & 0x007)) {
- /* Force if Capable regular DMA modes */
- dma_func = config_chipset_for_dma(drive);
- if (dma_func != ide_dma_on)
- goto no_dma_set;
- }
- } else if (ide_dmaproc(ide_dma_good_drive, drive)) {
- if (id->eide_dma_time > 150) {
- goto no_dma_set;
- }
- /* Consult the list of known "good" drives */
- dma_func = config_chipset_for_dma(drive);
- if (dma_func != ide_dma_on)
- goto no_dma_set;
- } else {
- goto fast_ata_pio;
- }
- } else if ((id->capability & 8) || (id->field_valid & 2)) {
-fast_ata_pio:
- dma_func = ide_dma_off_quietly;
-no_dma_set:
- config_chipset_for_pio(drive);
- }
- return HWIF(drive)->dmaproc(dma_func, drive);
-}
-
-static int svwks_dmaproc(ide_dma_action_t func, ide_drive_t *drive)
-{
- switch (func) {
- case ide_dma_check:
- return config_drive_xfer_rate(drive);
- case ide_dma_end:
- {
- ide_hwif_t *hwif = HWIF(drive);
- unsigned long dma_base = hwif->dma_base;
-
- if(inb(dma_base+0x02)&1)
- {
-#if 0
- int i;
- printk(KERN_ERR "Curious - OSB4 thinks the DMA is still running.\n");
- for(i=0;i<10;i++)
- {
- if(!(inb(dma_base+0x02)&1))
- {
- printk(KERN_ERR "OSB4 now finished.\n");
- break;
- }
- udelay(5);
- }
-#endif
- printk(KERN_CRIT "Serverworks OSB4 in impossible state.\n");
- printk(KERN_CRIT "Disable UDMA or if you are using Seagate then try switching disk types\n");
- printk(KERN_CRIT "on this controller. Please report this event to osb4-bug@ide.cabal.tm\n");
-#if 0
- /* Panic might sys_sync -> death by corrupt disk */
- panic("OSB4: continuing might cause disk corruption.\n");
-#else
- printk(KERN_CRIT "OSB4: continuing might cause disk corruption.\n");
- while(1)
- cpu_relax();
-#endif
- }
- /* and drop through */
- }
- default:
- break;
- }
- /* Other cases are done by generic IDE-DMA code. */
- return ide_dmaproc(func, drive);
-}
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-unsigned int __init pci_init_svwks (struct pci_dev *dev, const char *name)
-{
- unsigned int reg;
- byte btr;
-
- /* save revision id to determine DMA capability */
- pci_read_config_byte(dev, PCI_REVISION_ID, &svwks_revision);
-
- /* force Master Latency Timer value to 64 PCICLKs */
- pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40);
-
- /* OSB4 : South Bridge and IDE */
- if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) {
- isa_dev = pci_find_device(PCI_VENDOR_ID_SERVERWORKS,
- PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL);
- if (isa_dev) {
- pci_read_config_dword(isa_dev, 0x64, ®);
- reg &= ~0x00002000; /* disable 600ns interrupt mask */
- reg |= 0x00004000; /* enable UDMA/33 support */
- pci_write_config_dword(isa_dev, 0x64, reg);
- }
- }
-
- /* setup CSB5 : South Bridge and IDE */
- else if (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) {
- /* setup the UDMA Control register
- *
- * 1. clear bit 6 to enable DMA
- * 2. enable DMA modes with bits 0-1
- * 00 : legacy
- * 01 : udma2
- * 10 : udma2/udma4
- * 11 : udma2/udma4/udma5
- */
- pci_read_config_byte(dev, 0x5A, &btr);
- btr &= ~0x40;
- btr |= (svwks_revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2;
- pci_write_config_byte(dev, 0x5A, btr);
- }
-
-#if defined(DISPLAY_SVWKS_TIMINGS) && defined(CONFIG_PROC_FS)
- if (!svwks_proc) {
- svwks_proc = 1;
- bmide_dev = dev;
- svwks_display_info = &svwks_get_info;
- }
-#endif /* DISPLAY_SVWKS_TIMINGS && CONFIG_PROC_FS */
- return 0;
-}
-
-/* On Dell PowerEdge servers with a CSB5, the top two bits of the subsystem
- * device ID indicate presence of an 80-pin cable.
- * Bit 15 clear = secondary IDE channel does not have 80-pin cable.
- * Bit 15 set = secondary IDE channel has 80-pin cable.
- * Bit 14 clear = primary IDE channel does not have 80-pin cable.
- * Bit 14 set = primary IDE channel has 80-pin cable.
- */
-static unsigned int __init ata66_svwks_dell (ide_hwif_t *hwif)
-{
- struct pci_dev *dev = hwif->pci_dev;
- if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
- dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
- dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
- return ((1 << (hwif->channel + 14)) &
- dev->subsystem_device) ? 1 : 0;
- return 0;
-}
-
-/* Sun Cobalt Alpine hardware avoids the 80-pin cable
- * detect issue by attaching the drives directly to the board.
- * This check follows the Dell precedent (how scary is that?!)
- *
- * WARNING: this only works on Alpine hardware!
- */
-static unsigned int __init ata66_svwks_cobalt (ide_hwif_t *hwif)
-{
- struct pci_dev *dev = hwif->pci_dev;
- if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN &&
- dev->vendor == PCI_VENDOR_ID_SERVERWORKS &&
- dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE)
- return ((1 << (hwif->channel + 14)) &
- dev->subsystem_device) ? 1 : 0;
- return 0;
-}
-
-unsigned int __init ata66_svwks (ide_hwif_t *hwif)
-{
- struct pci_dev *dev = hwif->pci_dev;
-
- /* Dell PowerEdge */
- if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL)
- return ata66_svwks_dell (hwif);
-
- /* Cobalt Alpine */
- if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN)
- return ata66_svwks_cobalt (hwif);
-
- return 0;
-}
-
-void __init ide_init_svwks (ide_hwif_t *hwif)
-{
- if (!hwif->irq)
- hwif->irq = hwif->channel ? 15 : 14;
-
- hwif->tuneproc = &svwks_tune_drive;
- hwif->speedproc = &svwks_tune_chipset;
-
-#ifndef CONFIG_BLK_DEV_IDEDMA
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- hwif->autodma = 0;
-#else /* CONFIG_BLK_DEV_IDEDMA */
- if (hwif->dma_base) {
-#ifdef CONFIG_IDEDMA_AUTO
- if (!noautodma)
- hwif->autodma = 1;
-#endif
- hwif->dmaproc = &svwks_dmaproc;
- } else {
- hwif->autodma = 0;
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- }
-#endif /* !CONFIG_BLK_DEV_IDEDMA */
-}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)