patch-2.4.21 linux-2.4.21/drivers/ide/via82cxxx.c
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- Lines: 533
- Date:
1969-12-31 16:00:00.000000000 -0800
- Orig file:
linux-2.4.20/drivers/ide/via82cxxx.c
- Orig date:
2002-11-28 15:53:13.000000000 -0800
diff -urN linux-2.4.20/drivers/ide/via82cxxx.c linux-2.4.21/drivers/ide/via82cxxx.c
@@ -1,532 +0,0 @@
-/*
- * Version 3.35
- *
- * VIA IDE driver for Linux. Supported southbridges:
- *
- * vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b,
- * vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a,
- * vt8235
- *
- * Copyright (c) 2000-2002 Vojtech Pavlik
- *
- * Based on the work of:
- * Michel Aubry
- * Jeff Garzik
- * Andre Hedrick
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/blkdev.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/ide.h>
-#include <asm/io.h>
-
-#include "ide-timing.h"
-
-#define VIA_IDE_ENABLE 0x40
-#define VIA_IDE_CONFIG 0x41
-#define VIA_FIFO_CONFIG 0x43
-#define VIA_MISC_1 0x44
-#define VIA_MISC_2 0x45
-#define VIA_MISC_3 0x46
-#define VIA_DRIVE_TIMING 0x48
-#define VIA_8BIT_TIMING 0x4e
-#define VIA_ADDRESS_SETUP 0x4c
-#define VIA_UDMA_TIMING 0x50
-
-#define VIA_UDMA 0x007
-#define VIA_UDMA_NONE 0x000
-#define VIA_UDMA_33 0x001
-#define VIA_UDMA_66 0x002
-#define VIA_UDMA_100 0x003
-#define VIA_UDMA_133 0x004
-#define VIA_BAD_PREQ 0x010 /* Crashes if PREQ# till DDACK# set */
-#define VIA_BAD_CLK66 0x020 /* 66 MHz clock doesn't work correctly */
-#define VIA_SET_FIFO 0x040 /* Needs to have FIFO split set */
-#define VIA_NO_UNMASK 0x080 /* Doesn't work with IRQ unmasking on */
-#define VIA_BAD_ID 0x100 /* Has wrong vendor ID (0x1107) */
-
-#ifndef PCI_DEVICE_ID_VIA_8235
-#define PCI_DEVICE_ID_VIA_8235 0x3177
-#endif
-
-/*
- * VIA SouthBridge chips.
- */
-
-static struct via_isa_bridge {
- char *name;
- unsigned short id;
- unsigned char rev_min;
- unsigned char rev_max;
- unsigned short flags;
-} via_isa_bridges[] = {
-#ifdef FUTURE_BRIDGES
- { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 },
-#endif
- { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 },
- { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 },
- { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, VIA_UDMA_100 },
- { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, VIA_UDMA_100 },
- { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, VIA_UDMA_100 },
- { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, VIA_UDMA_100 },
- { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, VIA_UDMA_66 },
- { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
- { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, VIA_UDMA_66 },
- { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, VIA_UDMA_33 | VIA_BAD_CLK66 },
- { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, VIA_UDMA_33 | VIA_SET_FIFO },
- { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, VIA_UDMA_33 | VIA_SET_FIFO | VIA_BAD_PREQ },
- { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, VIA_UDMA_33 | VIA_SET_FIFO },
- { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, VIA_UDMA_33 | VIA_SET_FIFO },
- { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, VIA_UDMA_NONE | VIA_SET_FIFO },
- { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK },
- { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, VIA_UDMA_NONE | VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID },
- { NULL }
-};
-
-static struct via_isa_bridge *via_config;
-static unsigned char via_enabled;
-static unsigned int via_80w;
-static unsigned int via_clock;
-static char *via_dma[] = { "MWDMA16", "UDMA33", "UDMA66", "UDMA100", "UDMA133" };
-
-/*
- * VIA /proc entry.
- */
-
-#ifdef CONFIG_PROC_FS
-
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-int via_proc, via_base;
-static struct pci_dev *bmide_dev, *isa_dev;
-extern int (*via_display_info)(char *, char **, off_t, int); /* ide-proc.c */
-
-static char *via_control3[] = { "No limit", "64", "128", "192" };
-
-#define via_print(format, arg...) p += sprintf(p, format "\n" , ## arg)
-#define via_print_drive(name, format, arg...)\
- p += sprintf(p, name); for (i = 0; i < 4; i++) p += sprintf(p, format, ## arg); p += sprintf(p, "\n");
-
-static int via_get_info(char *buffer, char **addr, off_t offset, int count)
-{
- int speed[4], cycle[4], setup[4], active[4], recover[4], den[4],
- uen[4], udma[4], umul[4], active8b[4], recover8b[4];
- struct pci_dev *dev = bmide_dev;
- unsigned int v, u, i;
- unsigned short c, w;
- unsigned char t, x;
- char *p = buffer;
-
- via_print("----------VIA BusMastering IDE Configuration----------------");
-
- via_print("Driver Version: 3.35");
- via_print("South Bridge: VIA %s", via_config->name);
-
- pci_read_config_byte(isa_dev, PCI_REVISION_ID, &t);
- pci_read_config_byte(dev, PCI_REVISION_ID, &x);
- via_print("Revision: ISA %#x IDE %#x", t, x);
- via_print("Highest DMA rate: %s", via_dma[via_config->flags & VIA_UDMA]);
-
- via_print("BM-DMA base: %#x", via_base);
- via_print("PCI clock: %d.%dMHz", via_clock / 1000, via_clock / 100 % 10);
-
- pci_read_config_byte(dev, VIA_MISC_1, &t);
- via_print("Master Read Cycle IRDY: %dws", (t & 64) >> 6);
- via_print("Master Write Cycle IRDY: %dws", (t & 32) >> 5);
- via_print("BM IDE Status Register Read Retry: %s", (t & 8) ? "yes" : "no");
-
- pci_read_config_byte(dev, VIA_MISC_3, &t);
- via_print("Max DRDY Pulse Width: %s%s", via_control3[(t & 0x03)], (t & 0x03) ? " PCI clocks" : "");
-
- via_print("-----------------------Primary IDE-------Secondary IDE------");
- via_print("Read DMA FIFO flush: %10s%20s", (t & 0x80) ? "yes" : "no", (t & 0x40) ? "yes" : "no");
- via_print("End Sector FIFO flush: %10s%20s", (t & 0x20) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
-
- pci_read_config_byte(dev, VIA_IDE_CONFIG, &t);
- via_print("Prefetch Buffer: %10s%20s", (t & 0x80) ? "yes" : "no", (t & 0x20) ? "yes" : "no");
- via_print("Post Write Buffer: %10s%20s", (t & 0x40) ? "yes" : "no", (t & 0x10) ? "yes" : "no");
-
- pci_read_config_byte(dev, VIA_IDE_ENABLE, &t);
- via_print("Enabled: %10s%20s", (t & 0x02) ? "yes" : "no", (t & 0x01) ? "yes" : "no");
-
- c = inb(via_base + 0x02) | (inb(via_base + 0x0a) << 8);
- via_print("Simplex only: %10s%20s", (c & 0x80) ? "yes" : "no", (c & 0x8000) ? "yes" : "no");
-
- via_print("Cable Type: %10s%20s", (via_80w & 1) ? "80w" : "40w", (via_80w & 2) ? "80w" : "40w");
-
- via_print("-------------------drive0----drive1----drive2----drive3-----");
-
- pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
- pci_read_config_dword(dev, VIA_DRIVE_TIMING, &v);
- pci_read_config_word(dev, VIA_8BIT_TIMING, &w);
-
- if (via_config->flags & VIA_UDMA)
- pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
- else u = 0;
-
- for (i = 0; i < 4; i++) {
-
- setup[i] = ((t >> ((3 - i) << 1)) & 0x3) + 1;
- recover8b[i] = ((w >> ((1 - (i >> 1)) << 3)) & 0xf) + 1;
- active8b[i] = ((w >> (((1 - (i >> 1)) << 3) + 4)) & 0xf) + 1;
- active[i] = ((v >> (((3 - i) << 3) + 4)) & 0xf) + 1;
- recover[i] = ((v >> ((3 - i) << 3)) & 0xf) + 1;
- udma[i] = ((u >> ((3 - i) << 3)) & 0x7) + 2;
- umul[i] = ((u >> (((3 - i) & 2) << 3)) & 0x8) ? 1 : 2;
- uen[i] = ((u >> ((3 - i) << 3)) & 0x20);
- den[i] = (c & ((i & 1) ? 0x40 : 0x20) << ((i & 2) << 2));
-
- speed[i] = 2 * via_clock / (active[i] + recover[i]);
- cycle[i] = 1000000 * (active[i] + recover[i]) / via_clock;
-
- if (!uen[i] || !den[i])
- continue;
-
- switch (via_config->flags & VIA_UDMA) {
-
- case VIA_UDMA_33:
- speed[i] = 2 * via_clock / udma[i];
- cycle[i] = 1000000 * udma[i] / via_clock;
- break;
-
- case VIA_UDMA_66:
- speed[i] = 4 * via_clock / (udma[i] * umul[i]);
- cycle[i] = 500000 * (udma[i] * umul[i]) / via_clock;
- break;
-
- case VIA_UDMA_100:
- speed[i] = 6 * via_clock / udma[i];
- cycle[i] = 333333 * udma[i] / via_clock;
- break;
-
- case VIA_UDMA_133:
- speed[i] = 8 * via_clock / udma[i];
- cycle[i] = 250000 * udma[i] / via_clock;
- break;
- }
- }
-
- via_print_drive("Transfer Mode: ", "%10s", den[i] ? (uen[i] ? "UDMA" : "DMA") : "PIO");
-
- via_print_drive("Address Setup: ", "%8dns", 1000000 * setup[i] / via_clock);
- via_print_drive("Cmd Active: ", "%8dns", 1000000 * active8b[i] / via_clock);
- via_print_drive("Cmd Recovery: ", "%8dns", 1000000 * recover8b[i] / via_clock);
- via_print_drive("Data Active: ", "%8dns", 1000000 * active[i] / via_clock);
- via_print_drive("Data Recovery: ", "%8dns", 1000000 * recover[i] / via_clock);
- via_print_drive("Cycle Time: ", "%8dns", cycle[i]);
- via_print_drive("Transfer Rate: ", "%4d.%dMB/s", speed[i] / 1000, speed[i] / 100 % 10);
-
- return p - buffer; /* hoping it is less than 4K... */
-}
-
-#endif
-
-/*
- * via_set_speed() writes timing values to the chipset registers
- */
-
-static void via_set_speed(struct pci_dev *dev, unsigned char dn, struct ide_timing *timing)
-{
- unsigned char t;
-
- pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t);
- t = (t & ~(3 << ((3 - dn) << 1))) | ((FIT(timing->setup, 1, 4) - 1) << ((3 - dn) << 1));
- pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t);
-
- pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)),
- ((FIT(timing->act8b, 1, 16) - 1) << 4) | (FIT(timing->rec8b, 1, 16) - 1));
-
- pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn),
- ((FIT(timing->active, 1, 16) - 1) << 4) | (FIT(timing->recover, 1, 16) - 1));
-
- switch (via_config->flags & VIA_UDMA) {
- case VIA_UDMA_33: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 5) - 2)) : 0x03; break;
- case VIA_UDMA_66: t = timing->udma ? (0xe8 | (FIT(timing->udma, 2, 9) - 2)) : 0x0f; break;
- case VIA_UDMA_100: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
- case VIA_UDMA_133: t = timing->udma ? (0xe0 | (FIT(timing->udma, 2, 9) - 2)) : 0x07; break;
- default: return;
- }
-
- pci_write_config_byte(dev, VIA_UDMA_TIMING + (3 - dn), t);
-}
-
-/*
- * via_set_drive() computes timing values configures the drive and
- * the chipset to a desired transfer mode. It also can be called
- * by upper layers.
- */
-
-static int via_set_drive(ide_drive_t *drive, unsigned char speed)
-{
- ide_drive_t *peer = HWIF(drive)->drives + (~drive->dn & 1);
- struct ide_timing t, p;
- unsigned int T, UT;
-
- if (speed != XFER_PIO_SLOW && speed != drive->current_speed)
- if (ide_config_drive_speed(drive, speed))
- printk(KERN_WARNING "ide%d: Drive %d didn't accept speed setting. Oh, well.\n",
- drive->dn >> 1, drive->dn & 1);
-
- T = 1000000000 / via_clock;
-
- switch (via_config->flags & VIA_UDMA) {
- case VIA_UDMA_33: UT = T; break;
- case VIA_UDMA_66: UT = T/2; break;
- case VIA_UDMA_100: UT = T/3; break;
- case VIA_UDMA_133: UT = T/4; break;
- default: UT = T;
- }
-
- ide_timing_compute(drive, speed, &t, T, UT);
-
- if (peer->present) {
- ide_timing_compute(peer, peer->current_speed, &p, T, UT);
- ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT);
- }
-
- via_set_speed(HWIF(drive)->pci_dev, drive->dn, &t);
-
- if (!drive->init_speed)
- drive->init_speed = speed;
- drive->current_speed = speed;
-
- return 0;
-}
-
-/*
- * via82cxxx_tune_drive() is a callback from upper layers for
- * PIO-only tuning.
- */
-
-static void via82cxxx_tune_drive(ide_drive_t *drive, unsigned char pio)
-{
- if (!((via_enabled >> HWIF(drive)->channel) & 1))
- return;
-
- if (pio == 255) {
- via_set_drive(drive, ide_find_best_mode(drive, XFER_PIO | XFER_EPIO));
- return;
- }
-
- via_set_drive(drive, XFER_PIO_0 + MIN(pio, 5));
-}
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
-
-/*
- * via82cxxx_dmaproc() is a callback from upper layers that can do
- * a lot, but we use it for DMA/PIO tuning only, delegating everything
- * else to the default ide_dmaproc().
- */
-
-int via82cxxx_dmaproc(ide_dma_action_t func, ide_drive_t *drive)
-{
-
- if (func == ide_dma_check) {
-
- short w80 = HWIF(drive)->udma_four;
-
- short speed = ide_find_best_mode(drive,
- XFER_PIO | XFER_EPIO | XFER_SWDMA | XFER_MWDMA |
- (via_config->flags & VIA_UDMA ? XFER_UDMA : 0) |
- (w80 && (via_config->flags & VIA_UDMA) >= VIA_UDMA_66 ? XFER_UDMA_66 : 0) |
- (w80 && (via_config->flags & VIA_UDMA) >= VIA_UDMA_100 ? XFER_UDMA_100 : 0) |
- (w80 && (via_config->flags & VIA_UDMA) >= VIA_UDMA_133 ? XFER_UDMA_133 : 0));
-
- via_set_drive(drive, speed);
-
- func = (HWIF(drive)->autodma && (speed & XFER_MODE) != XFER_PIO)
- ? ide_dma_on : ide_dma_off_quietly;
- }
-
- return ide_dmaproc(func, drive);
-}
-
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-
-/*
- * The initialization callback. Here we determine the IDE chip type
- * and initialize its drive independent registers.
- */
-
-unsigned int __init pci_init_via82cxxx(struct pci_dev *dev, const char *name)
-{
- struct pci_dev *isa = NULL;
- unsigned char t, v;
- unsigned int u;
- int i;
-
-/*
- * Find the ISA bridge to see how good the IDE is.
- */
-
- for (via_config = via_isa_bridges; via_config->id; via_config++)
- if ((isa = pci_find_device(PCI_VENDOR_ID_VIA +
- !!(via_config->flags & VIA_BAD_ID), via_config->id, NULL))) {
-
- pci_read_config_byte(isa, PCI_REVISION_ID, &t);
- if (t >= via_config->rev_min && t <= via_config->rev_max)
- break;
- }
-
- if (!via_config->id) {
- printk(KERN_WARNING "VP_IDE: Unknown VIA SouthBridge, contact Vojtech Pavlik <vojtech@ucw.cz>\n");
- return -ENODEV;
- }
-
-/*
- * Check 80-wire cable presence and setup Clk66.
- */
-
- switch (via_config->flags & VIA_UDMA) {
-
- case VIA_UDMA_66:
- pci_read_config_dword(dev, VIA_UDMA_TIMING, &u); /* Enable Clk66 */
- pci_write_config_dword(dev, VIA_UDMA_TIMING, u | 0x80008);
- for (i = 24; i >= 0; i -= 8)
- if (((u >> (i & 16)) & 8) && ((u >> i) & 0x20) && (((u >> i) & 7) < 2))
- via_80w |= (1 << (1 - (i >> 4))); /* 2x PCI clock and UDMA w/ < 3T/cycle */
- break;
-
- case VIA_UDMA_100:
- pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
- for (i = 24; i >= 0; i -= 8)
- if (((u >> i) & 0x10) || (((u >> i) & 0x20) && (((u >> i) & 7) < 4)))
- via_80w |= (1 << (1 - (i >> 4))); /* BIOS 80-wire bit or UDMA w/ < 60ns/cycle */
- break;
-
- case VIA_UDMA_133:
- pci_read_config_dword(dev, VIA_UDMA_TIMING, &u);
- for (i = 24; i >= 0; i -= 8)
- if (((u >> i) & 0x10) || (((u >> i) & 0x20) && (((u >> i) & 7) < 8)))
- via_80w |= (1 << (1 - (i >> 4))); /* BIOS 80-wire bit or UDMA w/ < 60ns/cycle */
- break;
-
- }
-
- if (via_config->flags & VIA_BAD_CLK66) { /* Disable Clk66 */
- pci_read_config_dword(dev, VIA_UDMA_TIMING, &u); /* Would cause trouble on 596a and 686 */
- pci_write_config_dword(dev, VIA_UDMA_TIMING, u & ~0x80008);
- }
-
-/*
- * Check whether interfaces are enabled.
- */
-
- pci_read_config_byte(dev, VIA_IDE_ENABLE, &v);
- via_enabled = ((v & 1) ? 2 : 0) | ((v & 2) ? 1 : 0);
-
-/*
- * Set up FIFO sizes and thresholds.
- */
-
- pci_read_config_byte(dev, VIA_FIFO_CONFIG, &t);
-
- if (via_config->flags & VIA_BAD_PREQ) /* Disable PREQ# till DDACK# */
- t &= 0x7f; /* Would crash on 586b rev 41 */
-
- if (via_config->flags & VIA_SET_FIFO) { /* Fix FIFO split between channels */
- t &= (t & 0x9f);
- switch (via_enabled) {
- case 1: t |= 0x00; break; /* 16 on primary */
- case 2: t |= 0x60; break; /* 16 on secondary */
- case 3: t |= 0x20; break; /* 8 pri 8 sec */
- }
- }
-
- pci_write_config_byte(dev, VIA_FIFO_CONFIG, t);
-
-/*
- * Determine system bus clock.
- */
-
- via_clock = system_bus_clock() * 1000;
-
- switch (via_clock) {
- case 33000: via_clock = 33333; break;
- case 37000: via_clock = 37500; break;
- case 41000: via_clock = 41666; break;
- }
-
- if (via_clock < 20000 || via_clock > 50000) {
- printk(KERN_WARNING "VP_IDE: User given PCI clock speed impossible (%d), using 33 MHz instead.\n", via_clock);
- printk(KERN_WARNING "VP_IDE: Use ide0=ata66 if you want to assume 80-wire cable.\n");
- via_clock = 33333;
- }
-
-/*
- * Print the boot message.
- */
-
- pci_read_config_byte(isa, PCI_REVISION_ID, &t);
- printk(KERN_INFO "VP_IDE: VIA %s (rev %02x) IDE %s controller on pci%s\n",
- via_config->name, t, via_dma[via_config->flags & VIA_UDMA], dev->slot_name);
-
-/*
- * Setup /proc/ide/via entry.
- */
-
-#ifdef CONFIG_PROC_FS
- if (!via_proc) {
- via_base = pci_resource_start(dev, 4);
- bmide_dev = dev;
- isa_dev = isa;
- via_display_info = &via_get_info;
- via_proc = 1;
- }
-#endif
-
- return 0;
-}
-
-unsigned int __init ata66_via82cxxx(ide_hwif_t *hwif)
-{
- return ((via_enabled & via_80w) >> hwif->channel) & 1;
-}
-
-void __init ide_init_via82cxxx(ide_hwif_t *hwif)
-{
- int i;
-
- hwif->tuneproc = &via82cxxx_tune_drive;
- hwif->speedproc = &via_set_drive;
- hwif->autodma = 0;
-
- for (i = 0; i < 2; i++) {
- hwif->drives[i].io_32bit = 1;
- hwif->drives[i].unmask = (via_config->flags & VIA_NO_UNMASK) ? 0 : 1;
- hwif->drives[i].autotune = 1;
- hwif->drives[i].dn = hwif->channel * 2 + i;
- }
-
-#ifdef CONFIG_BLK_DEV_IDEDMA
- if (hwif->dma_base) {
- hwif->dmaproc = &via82cxxx_dmaproc;
-#ifdef CONFIG_IDEDMA_AUTO
- if (!noautodma)
- hwif->autodma = 1;
-#endif
- }
-#endif /* CONFIG_BLK_DEV_IDEDMA */
-}
-
-/*
- * We allow the BM-DMA driver to only work on enabled interfaces.
- */
-
-void __init ide_dmacapable_via82cxxx(ide_hwif_t *hwif, unsigned long dmabase)
-{
- if ((via_enabled >> hwif->channel) & 1)
- ide_setup_dma(hwif, dmabase, 8);
-}
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)