diff options
Diffstat (limited to 'drivers/ide/pci/cmd640.c')
| -rw-r--r-- | drivers/ide/pci/cmd640.c | 89 |
1 files changed, 25 insertions, 64 deletions
diff --git a/drivers/ide/pci/cmd640.c b/drivers/ide/pci/cmd640.c index 25c2f1bd175..aaf38109eae 100644 --- a/drivers/ide/pci/cmd640.c +++ b/drivers/ide/pci/cmd640.c @@ -111,10 +111,7 @@ #define DRV_NAME "cmd640" -/* - * This flag is set in ide.c by the parameter: ide0=cmd640_vlb - */ -int cmd640_vlb; +static int cmd640_vlb; /* * CMD640 specific registers definition. @@ -350,12 +347,12 @@ static int __init secondary_port_responding(void) spin_lock_irqsave(&cmd640_lock, flags); - outb_p(0x0a, 0x170 + IDE_SELECT_OFFSET); /* select drive0 */ + outb_p(0x0a, 0x176); /* select drive0 */ udelay(100); - if ((inb_p(0x170 + IDE_SELECT_OFFSET) & 0x1f) != 0x0a) { - outb_p(0x1a, 0x170 + IDE_SELECT_OFFSET); /* select drive1 */ + if ((inb_p(0x176) & 0x1f) != 0x0a) { + outb_p(0x1a, 0x176); /* select drive1 */ udelay(100); - if ((inb_p(0x170 + IDE_SELECT_OFFSET) & 0x1f) != 0x1a) { + if ((inb_p(0x176) & 0x1f) != 0x1a) { spin_unlock_irqrestore(&cmd640_lock, flags); return 0; /* nothing responded */ } @@ -383,6 +380,7 @@ static void cmd640_dump_regs(void) } #endif +#ifndef CONFIG_BLK_DEV_CMD640_ENHANCED /* * Check whether prefetch is on for a drive, * and initialize the unmask flags for safe operation. @@ -403,9 +401,7 @@ static void __init check_prefetch(ide_drive_t *drive, unsigned int index) drive->no_io_32bit = 0; } } - -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - +#else /* * Sets prefetch mode for a drive. */ @@ -462,34 +458,6 @@ static inline u8 pack_nibbles(u8 upper, u8 lower) } /* - * This routine retrieves the initial drive timings from the chipset. - */ -static void __init retrieve_drive_counts(unsigned int index) -{ - u8 b; - - /* - * Get the internal setup timing, and convert to clock count - */ - b = get_cmd640_reg(arttim_regs[index]) & ~0x3f; - switch (b) { - case 0x00: b = 4; break; - case 0x80: b = 3; break; - case 0x40: b = 2; break; - default: b = 5; break; - } - setup_counts[index] = b; - - /* - * Get the active/recovery counts - */ - b = get_cmd640_reg(drwtim_regs[index]); - active_counts[index] = (b >> 4) ? (b >> 4) : 0x10; - recovery_counts[index] = (b & 0x0f) ? (b & 0x0f) : 0x10; -} - - -/* * This routine writes the prepared setup/active/recovery counts * for a drive into the cmd640 chipset registers to active them. */ @@ -555,7 +523,14 @@ static void cmd640_set_mode(ide_drive_t *drive, unsigned int index, { int setup_time, active_time, recovery_time, clock_time; u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count; - int bus_speed = system_bus_clock(); + int bus_speed; + + if (cmd640_vlb && ide_vlb_clk) + bus_speed = ide_vlb_clk; + else if (!cmd640_vlb && ide_pci_clk) + bus_speed = ide_pci_clk; + else + bus_speed = system_bus_clock(); if (pio_mode > 5) pio_mode = 5; @@ -679,7 +654,6 @@ static const struct ide_port_info cmd640_port_info __initdata = { .chipset = ide_cmd640, .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA | - IDE_HFLAG_NO_AUTOTUNE | IDE_HFLAG_ABUSE_PREFETCH | IDE_HFLAG_ABUSE_FAST_DEVSEL, #ifdef CONFIG_BLK_DEV_CMD640_ENHANCED @@ -862,29 +836,16 @@ static int __init cmd640x_init(void) } #ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - if (drive->autotune || ((index > 1) && second_port_toggled)) { - /* - * Reset timing to the slowest speed and turn off - * prefetch. This way, the drive identify code has - * a better chance. - */ - setup_counts [index] = 4; /* max possible */ - active_counts [index] = 16; /* max possible */ - recovery_counts [index] = 16; /* max possible */ - program_drive_counts(drive, index); - set_prefetch_mode(drive, index, 0); - printk("cmd640: drive%d timings/prefetch cleared\n", index); - } else { - /* - * Record timings/prefetch without changing them. - * This preserves any prior BIOS setup. - */ - retrieve_drive_counts (index); - check_prefetch(drive, index); - printk("cmd640: drive%d timings/prefetch(%s) preserved", - index, drive->no_io_32bit ? "off" : "on"); - display_clocks(index); - } + /* + * Reset timing to the slowest speed and turn off prefetch. + * This way, the drive identify code has a better chance. + */ + setup_counts [index] = 4; /* max possible */ + active_counts [index] = 16; /* max possible */ + recovery_counts [index] = 16; /* max possible */ + program_drive_counts(drive, index); + set_prefetch_mode(drive, index, 0); + printk("cmd640: drive%d timings/prefetch cleared\n", index); #else /* * Set the drive unmask flags to match the prefetch setting |