patch-2.4.21 linux-2.4.21/drivers/ide/alim15x3.c
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- Lines: 706
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.20/drivers/ide/alim15x3.c
- Orig date:
2002-08-02 17:39:44.000000000 -0700
diff -urN linux-2.4.20/drivers/ide/alim15x3.c linux-2.4.21/drivers/ide/alim15x3.c
@@ -1,705 +0,0 @@
-/*
- * linux/drivers/ide/alim15x3.c Version 0.10 Jun. 9, 2000
- *
- * Copyright (C) 1998-2000 Michel Aubry, Maintainer
- * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer
- * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer
- *
- * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org)
- * May be copied or modified under the terms of the GNU General Public License
- *
- * (U)DMA capable version of ali 1533/1543(C), 1535(D)
- *
- **********************************************************************
- * 9/7/99 --Parts from the above author are included and need to be
- * converted into standard interface, once I finish the thought.
- */
-
-#include <linux/config.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/hdreg.h>
-#include <linux/ide.h>
-#include <linux/init.h>
-
-#include <asm/io.h>
-
-#include "ide_modes.h"
-
-#define DISPLAY_ALI_TIMINGS
-
-#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS)
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-static int ali_get_info(char *buffer, char **addr, off_t offset, int count);
-extern int (*ali_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-static struct pci_dev *bmide_dev;
-
-char *fifo[4] = {
- "FIFO Off",
- "FIFO On ",
- "DMA mode",
- "PIO mode" };
-
-char *udmaT[8] = {
- "1.5T",
- " 2T",
- "2.5T",
- " 3T",
- "3.5T",
- " 4T",
- " 6T",
- " 8T"
-};
-
-char *channel_status[8] = {
- "OK ",
- "busy ",
- "DRQ ",
- "DRQ busy ",
- "error ",
- "error busy ",
- "error DRQ ",
- "error DRQ busy"
-};
-
-static int ali_get_info (char *buffer, char **addr, off_t offset, int count)
-{
- byte reg53h, reg5xh, reg5yh, reg5xh1, reg5yh1;
- unsigned int bibma;
- byte c0, c1;
- byte rev, tmp;
- char *p = buffer;
- char *q;
-
- /* fetch rev. */
- pci_read_config_byte(bmide_dev, 0x08, &rev);
- if (rev >= 0xc1) /* M1543C or newer */
- udmaT[7] = " ???";
- else
- fifo[3] = " ??? ";
-
- /* first fetch bibma: */
- pci_read_config_dword(bmide_dev, 0x20, &bibma);
- bibma = (bibma & 0xfff0) ;
- /*
- * at that point bibma+0x2 et bibma+0xa are byte
- * registers to investigate:
- */
- c0 = inb((unsigned short)bibma + 0x02);
- c1 = inb((unsigned short)bibma + 0x0a);
-
- p += sprintf(p,
- "\n Ali M15x3 Chipset.\n");
- p += sprintf(p,
- " ------------------\n");
- pci_read_config_byte(bmide_dev, 0x78, ®53h);
- p += sprintf(p, "PCI Clock: %d.\n", reg53h);
-
- pci_read_config_byte(bmide_dev, 0x53, ®53h);
- p += sprintf(p,
- "CD_ROM FIFO:%s, CD_ROM DMA:%s\n",
- (reg53h & 0x02) ? "Yes" : "No ",
- (reg53h & 0x01) ? "Yes" : "No " );
- pci_read_config_byte(bmide_dev, 0x74, ®53h);
- p += sprintf(p,
- "FIFO Status: contains %d Words, runs%s%s\n\n",
- (reg53h & 0x3f),
- (reg53h & 0x40) ? " OVERWR" : "",
- (reg53h & 0x80) ? " OVERRD." : "." );
-
- p += sprintf(p,
- "-------------------primary channel-------------------secondary channel---------\n\n");
-
- pci_read_config_byte(bmide_dev, 0x09, ®53h);
- p += sprintf(p,
- "channel status: %s %s\n",
- (reg53h & 0x20) ? "On " : "Off",
- (reg53h & 0x10) ? "On " : "Off" );
-
- p += sprintf(p,
- "both channels togth: %s %s\n",
- (c0&0x80) ? "No " : "Yes",
- (c1&0x80) ? "No " : "Yes" );
-
- pci_read_config_byte(bmide_dev, 0x76, ®53h);
- p += sprintf(p,
- "Channel state: %s %s\n",
- channel_status[reg53h & 0x07],
- channel_status[(reg53h & 0x70) >> 4] );
-
- pci_read_config_byte(bmide_dev, 0x58, ®5xh);
- pci_read_config_byte(bmide_dev, 0x5c, ®5yh);
- p += sprintf(p,
- "Add. Setup Timing: %dT %dT\n",
- (reg5xh & 0x07) ? (reg5xh & 0x07) : 8,
- (reg5yh & 0x07) ? (reg5yh & 0x07) : 8 );
-
- pci_read_config_byte(bmide_dev, 0x59, ®5xh);
- pci_read_config_byte(bmide_dev, 0x5d, ®5yh);
- p += sprintf(p,
- "Command Act. Count: %dT %dT\n"
- "Command Rec. Count: %dT %dT\n\n",
- (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8,
- (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8,
- (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16,
- (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16 );
-
- p += sprintf(p,
- "----------------drive0-----------drive1------------drive0-----------drive1------\n\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 " );
-
- pci_read_config_byte(bmide_dev, 0x54, ®5xh);
- pci_read_config_byte(bmide_dev, 0x55, ®5yh);
- q = "FIFO threshold: %2d Words %2d Words %2d Words %2d Words\n";
- if (rev < 0xc1) {
- if ((rev == 0x20) && (pci_read_config_byte(bmide_dev, 0x4f, &tmp), (tmp &= 0x20))) {
- p += sprintf(p, q, 8, 8, 8, 8);
- } else {
- p += sprintf(p, q,
- (reg5xh & 0x03) + 12,
- ((reg5xh & 0x30)>>4) + 12,
- (reg5yh & 0x03) + 12,
- ((reg5yh & 0x30)>>4) + 12 );
- }
- } else {
- int t1 = (tmp = (reg5xh & 0x03)) ? (tmp << 3) : 4;
- int t2 = (tmp = ((reg5xh & 0x30)>>4)) ? (tmp << 3) : 4;
- int t3 = (tmp = (reg5yh & 0x03)) ? (tmp << 3) : 4;
- int t4 = (tmp = ((reg5yh & 0x30)>>4)) ? (tmp << 3) : 4;
- p += sprintf(p, q, t1, t2, t3, t4);
- }
-
-#if 0
- p += sprintf(p,
- "FIFO threshold: %2d Words %2d Words %2d Words %2d Words\n",
- (reg5xh & 0x03) + 12,
- ((reg5xh & 0x30)>>4) + 12,
- (reg5yh & 0x03) + 12,
- ((reg5yh & 0x30)>>4) + 12 );
-#endif
-
- p += sprintf(p,
- "FIFO mode: %s %s %s %s\n",
- fifo[((reg5xh & 0x0c) >> 2)],
- fifo[((reg5xh & 0xc0) >> 6)],
- fifo[((reg5yh & 0x0c) >> 2)],
- fifo[((reg5yh & 0xc0) >> 6)] );
-
- pci_read_config_byte(bmide_dev, 0x5a, ®5xh);
- pci_read_config_byte(bmide_dev, 0x5b, ®5xh1);
- pci_read_config_byte(bmide_dev, 0x5e, ®5yh);
- pci_read_config_byte(bmide_dev, 0x5f, ®5yh1);
-
- p += sprintf(p,/*
- "------------------drive0-----------drive1------------drive0-----------drive1------\n")*/
- "Dt RW act. Cnt %2dT %2dT %2dT %2dT\n"
- "Dt RW rec. Cnt %2dT %2dT %2dT %2dT\n\n",
- (reg5xh & 0x70) ? ((reg5xh & 0x70) >> 4) : 8,
- (reg5xh1 & 0x70) ? ((reg5xh1 & 0x70) >> 4) : 8,
- (reg5yh & 0x70) ? ((reg5yh & 0x70) >> 4) : 8,
- (reg5yh1 & 0x70) ? ((reg5yh1 & 0x70) >> 4) : 8,
- (reg5xh & 0x0f) ? (reg5xh & 0x0f) : 16,
- (reg5xh1 & 0x0f) ? (reg5xh1 & 0x0f) : 16,
- (reg5yh & 0x0f) ? (reg5yh & 0x0f) : 16,
- (reg5yh1 & 0x0f) ? (reg5yh1 & 0x0f) : 16 );
-
- p += sprintf(p,
- "-----------------------------------UDMA Timings--------------------------------\n\n");
-
- pci_read_config_byte(bmide_dev, 0x56, ®5xh);
- pci_read_config_byte(bmide_dev, 0x57, ®5yh);
- p += sprintf(p,
- "UDMA: %s %s %s %s\n"
- "UDMA timings: %s %s %s %s\n\n",
- (reg5xh & 0x08) ? "OK" : "No",
- (reg5xh & 0x80) ? "OK" : "No",
- (reg5yh & 0x08) ? "OK" : "No",
- (reg5yh & 0x80) ? "OK" : "No",
- udmaT[(reg5xh & 0x07)],
- udmaT[(reg5xh & 0x70) >> 4],
- udmaT[reg5yh & 0x07],
- udmaT[(reg5yh & 0x70) >> 4] );
-
- return p-buffer; /* => must be less than 4k! */
-}
-#endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
-
-static byte m5229_revision;
-static byte chip_is_1543c_e;
-
-byte ali_proc = 0;
-static struct pci_dev *isa_dev;
-
-static void ali15x3_tune_drive (ide_drive_t *drive, byte pio)
-{
- ide_pio_data_t d;
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- int s_time, a_time, c_time;
- byte s_clc, a_clc, r_clc;
- unsigned long flags;
- int bus_speed = system_bus_clock();
- int port = hwif->index ? 0x5c : 0x58;
- int portFIFO = hwif->channel ? 0x55 : 0x54;
- byte cd_dma_fifo = 0;
-
- pio = ide_get_best_pio_mode(drive, pio, 5, &d);
- s_time = ide_pio_timings[pio].setup_time;
- a_time = ide_pio_timings[pio].active_time;
- if ((s_clc = (s_time * bus_speed + 999) / 1000) >= 8)
- s_clc = 0;
- if ((a_clc = (a_time * bus_speed + 999) / 1000) >= 8)
- a_clc = 0;
- c_time = ide_pio_timings[pio].cycle_time;
-
-#if 0
- if ((r_clc = ((c_time - s_time - a_time) * bus_speed + 999) / 1000) >= 16)
- r_clc = 0;
-#endif
-
- if (!(r_clc = (c_time * bus_speed + 999) / 1000 - a_clc - s_clc)) {
- r_clc = 1;
- } else {
- if (r_clc >= 16)
- r_clc = 0;
- }
- __save_flags(flags);
- __cli();
-
- /*
- * PIO mode => ATA FIFO on, ATAPI FIFO off
- */
- pci_read_config_byte(dev, portFIFO, &cd_dma_fifo);
- if (drive->media==ide_disk) {
- if (hwif->index) {
- pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0x0F) | 0x50);
- } else {
- pci_write_config_byte(dev, portFIFO, (cd_dma_fifo & 0xF0) | 0x05);
- }
- } else {
- if (hwif->index) {
- pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0x0F);
- } else {
- pci_write_config_byte(dev, portFIFO, cd_dma_fifo & 0xF0);
- }
- }
-
- pci_write_config_byte(dev, port, s_clc);
- pci_write_config_byte(dev, port+drive->select.b.unit+2, (a_clc << 4) | r_clc);
- __restore_flags(flags);
-
- /*
- * setup active rec
- * { 70, 165, 365 }, PIO Mode 0
- * { 50, 125, 208 }, PIO Mode 1
- * { 30, 100, 110 }, PIO Mode 2
- * { 30, 80, 70 }, PIO Mode 3 with IORDY
- * { 25, 70, 25 }, PIO Mode 4 with IORDY ns
- * { 20, 50, 30 } PIO Mode 5 with IORDY (nonstandard)
- */
-
-}
-
-static int ali15x3_tune_chipset (ide_drive_t *drive, byte speed)
-{
- ide_hwif_t *hwif = HWIF(drive);
- struct pci_dev *dev = hwif->pci_dev;
- byte unit = (drive->select.b.unit & 0x01);
- byte tmpbyte = 0x00;
- int m5229_udma = hwif->channel? 0x57 : 0x56;
- int err = 0;
-
- if (speed < XFER_UDMA_0) {
- byte ultra_enable = (unit) ? 0x7f : 0xf7;
- /*
- * clear "ultra enable" bit
- */
- pci_read_config_byte(dev, m5229_udma, &tmpbyte);
- tmpbyte &= ultra_enable;
- pci_write_config_byte(dev, m5229_udma, tmpbyte);
- }
-
- err = ide_config_drive_speed(drive, speed);
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
- if (speed >= XFER_SW_DMA_0) {
- unsigned long dma_base = hwif->dma_base;
-
- outb(inb(dma_base+2)|(1<<(5+unit)), dma_base+2);
- }
-
- if (speed >= XFER_UDMA_0) {
- pci_read_config_byte(dev, m5229_udma, &tmpbyte);
- tmpbyte &= (0x0f << ((1-unit) << 2));
- /*
- * enable ultra dma and set timing
- */
- tmpbyte |= ((0x08 | ((4-speed)&0x07)) << (unit << 2));
- pci_write_config_byte(dev, m5229_udma, tmpbyte);
- if (speed >= XFER_UDMA_3) {
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- tmpbyte |= 1;
- pci_write_config_byte(dev, 0x4b, tmpbyte);
- }
- }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
- drive->current_speed = speed;
-
- return (err);
-}
-
-static void config_chipset_for_pio (ide_drive_t *drive)
-{
- ali15x3_tune_drive(drive, 5);
-}
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-static int config_chipset_for_dma (ide_drive_t *drive, byte ultra33)
-{
- struct hd_driveid *id = drive->id;
- byte speed = 0x00;
- byte ultra66 = eighty_ninty_three(drive);
- byte ultra100 = (m5229_revision>=0xc4) ? 1 : 0;
- int rval;
-
- if ((id->dma_ultra & 0x0020) && (ultra100) && (ultra66) && (ultra33)) {
- speed = XFER_UDMA_5;
- } else if ((id->dma_ultra & 0x0010) && (ultra66) && (ultra33)) {
- speed = XFER_UDMA_4;
- } else if ((id->dma_ultra & 0x0008) && (ultra66) && (ultra33)) {
- speed = XFER_UDMA_3;
- } else if ((id->dma_ultra & 0x0004) && (ultra33)) {
- speed = XFER_UDMA_2;
- } else if ((id->dma_ultra & 0x0002) && (ultra33)) {
- speed = XFER_UDMA_1;
- } else if ((id->dma_ultra & 0x0001) && (ultra33)) {
- 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_mword & 0x0001) {
- speed = XFER_MW_DMA_0;
- } else if (id->dma_1word & 0x0004) {
- speed = XFER_SW_DMA_2;
- } else if (id->dma_1word & 0x0002) {
- speed = XFER_SW_DMA_1;
- } else if (id->dma_1word & 0x0001) {
- speed = XFER_SW_DMA_0;
- } else {
- return ((int) ide_dma_off_quietly);
- }
-
- (void) ali15x3_tune_chipset(drive, speed);
-
- if (!drive->init_speed)
- drive->init_speed = speed;
-
- rval = (int)( ((id->dma_ultra >> 11) & 3) ? 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);
-
- return rval;
-}
-
-static byte ali15x3_can_ultra (ide_drive_t *drive)
-{
-#ifndef CONFIG_WDC_ALI15X3
- struct hd_driveid *id = drive->id;
-#endif /* CONFIG_WDC_ALI15X3 */
-
- if (m5229_revision <= 0x20) {
- return 0;
- } else if ((m5229_revision < 0xC2) &&
-#ifndef CONFIG_WDC_ALI15X3
- ((chip_is_1543c_e && strstr(id->model, "WDC ")) ||
- (drive->media!=ide_disk))) {
-#else /* CONFIG_WDC_ALI15X3 */
- (drive->media!=ide_disk)) {
-#endif /* CONFIG_WDC_ALI15X3 */
- return 0;
- } else {
- return 1;
- }
-}
-
-static int ali15x3_config_drive_for_dma(ide_drive_t *drive)
-{
- struct hd_driveid *id = drive->id;
- ide_hwif_t *hwif = HWIF(drive);
- ide_dma_action_t dma_func = ide_dma_on;
- byte can_ultra_dma = ali15x3_can_ultra(drive);
-
- if ((m5229_revision<=0x20) && (drive->media!=ide_disk))
- return hwif->dmaproc(ide_dma_off_quietly, drive);
-
- if ((id != NULL) && ((id->capability & 1) != 0) && hwif->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) && (m5229_revision >= 0xC2)) {
- if (id->dma_ultra & 0x003F) {
- /* Force if Capable UltraDMA */
- dma_func = config_chipset_for_dma(drive, can_ultra_dma);
- 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 & 0x0007)) {
- /* Force if Capable regular DMA modes */
- dma_func = config_chipset_for_dma(drive, can_ultra_dma);
- 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, can_ultra_dma);
- 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->dmaproc(dma_func, drive);
-}
-
-static int ali15x3_dmaproc (ide_dma_action_t func, ide_drive_t *drive)
-{
- switch(func) {
- case ide_dma_check:
- return ali15x3_config_drive_for_dma(drive);
- case ide_dma_write:
- if ((m5229_revision < 0xC2) && (drive->media != ide_disk))
- return 1; /* try PIO instead of DMA */
- break;
- default:
- break;
- }
- return ide_dmaproc(func, drive); /* use standard DMA stuff */
-}
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-unsigned int __init pci_init_ali15x3 (struct pci_dev *dev, const char *name)
-{
- unsigned long fixdma_base = pci_resource_start(dev, 4);
-
- pci_read_config_byte(dev, PCI_REVISION_ID, &m5229_revision);
-
- isa_dev = pci_find_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
-
- if (!fixdma_base) {
- /*
- *
- */
- } else {
- /*
- * enable DMA capable bit, and "not" simplex only
- */
- outb(inb(fixdma_base+2) & 0x60, fixdma_base+2);
-
- if (inb(fixdma_base+2) & 0x80)
- printk("%s: simplex device: DMA will fail!!\n", name);
- }
-
-#if defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS)
- if (!ali_proc) {
- ali_proc = 1;
- bmide_dev = dev;
- ali_display_info = &ali_get_info;
- }
-#endif /* defined(DISPLAY_ALI_TIMINGS) && defined(CONFIG_PROC_FS) */
-
- return 0;
-}
-
-/*
- * This checks if the controller and the cable are capable
- * of UDMA66 transfers. It doesn't check the drives.
- * But see note 2 below!
- */
-unsigned int __init ata66_ali15x3 (ide_hwif_t *hwif)
-{
- struct pci_dev *dev = hwif->pci_dev;
- unsigned int ata66 = 0;
- byte cable_80_pin[2] = { 0, 0 };
-
- unsigned long flags;
- byte tmpbyte;
-
- __save_flags(flags);
- __cli();
-
- if (m5229_revision >= 0xC2) {
- /*
- * 1543C-B?, 1535, 1535D, 1553
- * Note 1: not all "motherboard" support this detection
- * Note 2: if no udma 66 device, the detection may "error".
- * but in this case, we will not set the device to
- * ultra 66, the detection result is not important
- */
-
- /*
- * enable "Cable Detection", m5229, 0x4b, bit3
- */
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08);
-
- /*
- * set south-bridge's enable bit, m1533, 0x79
- */
- pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
- if (m5229_revision == 0xC2) {
- /*
- * 1543C-B0 (m1533, 0x79, bit 2)
- */
- pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
- } else if (m5229_revision >= 0xC3) {
- /*
- * 1553/1535 (m1533, 0x79, bit 1)
- */
- pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
- }
- /*
- * Ultra66 cable detection (from Host View)
- * m5229, 0x4a, bit0: primary, bit1: secondary 80 pin
- */
- pci_read_config_byte(dev, 0x4a, &tmpbyte);
- /*
- * 0x4a, bit0 is 0 => primary channel
- * has 80-pin (from host view)
- */
- if (!(tmpbyte & 0x01)) cable_80_pin[0] = 1;
- /*
- * 0x4a, bit1 is 0 => secondary channel
- * has 80-pin (from host view)
- */
- if (!(tmpbyte & 0x02)) cable_80_pin[1] = 1;
- /*
- * Allow ata66 if cable of current channel has 80 pins
- */
- ata66 = (hwif->channel)?cable_80_pin[1]:cable_80_pin[0];
- } else {
- /*
- * revision 0x20 (1543-E, 1543-F)
- * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E)
- * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7
- */
- pci_read_config_byte(dev, 0x4b, &tmpbyte);
- /*
- * clear bit 7
- */
- pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F);
- /*
- * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010
- */
- pci_read_config_byte(isa_dev, 0x5e, &tmpbyte);
- chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0;
- }
-
- /*
- * CD_ROM DMA on (m5229, 0x53, bit0)
- * Enable this bit even if we want to use PIO
- * PIO FIFO off (m5229, 0x53, bit1)
- * The hardware will use 0x54h and 0x55h to control PIO FIFO
- */
- pci_read_config_byte(dev, 0x53, &tmpbyte);
- tmpbyte = (tmpbyte & (~0x02)) | 0x01;
-
- pci_write_config_byte(dev, 0x53, tmpbyte);
-
- __restore_flags(flags);
-
- return(ata66);
-}
-
-void __init ide_init_ali15x3 (ide_hwif_t *hwif)
-{
-#ifndef CONFIG_SPARC64
- byte ideic, inmir;
- byte irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6,
- 1, 11, 0, 12, 0, 14, 0, 15 };
-
- hwif->irq = hwif->channel ? 15 : 14;
-
- if (isa_dev) {
- /*
- * read IDE interface control
- */
- pci_read_config_byte(isa_dev, 0x58, &ideic);
-
- /* bit0, bit1 */
- ideic = ideic & 0x03;
-
- /* get IRQ for IDE Controller */
- if ((hwif->channel && ideic == 0x03) || (!hwif->channel && !ideic)) {
- /*
- * get SIRQ1 routing table
- */
- pci_read_config_byte(isa_dev, 0x44, &inmir);
- inmir = inmir & 0x0f;
- hwif->irq = irq_routing_table[inmir];
- } else if (hwif->channel && !(ideic & 0x01)) {
- /*
- * get SIRQ2 routing table
- */
- pci_read_config_byte(isa_dev, 0x75, &inmir);
- inmir = inmir & 0x0f;
- hwif->irq = irq_routing_table[inmir];
- }
- }
-#endif /* CONFIG_SPARC64 */
-
- hwif->tuneproc = &ali15x3_tune_drive;
- hwif->drives[0].autotune = 1;
- hwif->drives[1].autotune = 1;
- hwif->speedproc = &ali15x3_tune_chipset;
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
- if ((hwif->dma_base) && (m5229_revision >= 0x20)) {
- /*
- * M1543C or newer for DMAing
- */
- hwif->dmaproc = &ali15x3_dmaproc;
- hwif->autodma = 1;
- }
-
- if (noautodma)
- hwif->autodma = 0;
-#else
- hwif->autodma = 0;
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-}
-
-void __init ide_dmacapable_ali15x3 (ide_hwif_t *hwif, unsigned long dmabase)
-{
- if ((dmabase) && (m5229_revision < 0x20)) {
- return;
- }
- ide_setup_dma(hwif, dmabase, 8);
-}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)