diff options
author | Ralf Baechle <ralf@linux-mips.org> | 1998-03-03 01:22:27 +0000 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 1998-03-03 01:22:27 +0000 |
commit | f9bbe9da79dbc8557c74efeb158b431cd67ace52 (patch) | |
tree | 3220d014a35f9d88a48668a1468524e988daebff /drivers/block/rz1000.c | |
parent | 3d697109c1ff85ef563aec3d5e113ef225ed2792 (diff) |
Upgrade to 2.1.73.
Diffstat (limited to 'drivers/block/rz1000.c')
-rw-r--r-- | drivers/block/rz1000.c | 43 |
1 files changed, 34 insertions, 9 deletions
diff --git a/drivers/block/rz1000.c b/drivers/block/rz1000.c index b7270c559..670fe3e58 100644 --- a/drivers/block/rz1000.c +++ b/drivers/block/rz1000.c @@ -1,7 +1,7 @@ /* - * linux/drivers/block/rz1000.c Version 0.03 Mar 20, 1996 + * linux/drivers/block/rz1000.c Version 0.05 December 8, 1997 * - * Copyright (C) 1995-1996 Linus Torvalds & author (see below) + * Copyright (C) 1995-1998 Linus Torvalds & author (see below) */ /* @@ -9,6 +9,8 @@ * * This file provides support for disabling the buggy read-ahead * mode of the RZ1000 IDE chipset, commonly used on Intel motherboards. + * + * Dunno if this fixes both ports, or only the primary port (?). */ #undef REALLY_SLOW_IO /* most systems can safely undef this */ @@ -26,21 +28,40 @@ #include <linux/pci.h> #include "ide.h" -static void init_rz1000 (byte bus, byte fn, const char *name) +#ifdef CONFIG_BLK_DEV_IDEPCI + +__initfunc(void ide_init_rz1000 (ide_hwif_t *hwif)) /* called from ide-pci.c */ +{ + unsigned short reg; + + hwif->chipset = ide_rz1000; + if (!pcibios_read_config_word (hwif->pci_bus, hwif->pci_fn, 0x40, ®) + && !pcibios_write_config_word(hwif->pci_bus, hwif->pci_fn, 0x40, reg & 0xdfff)) + { + printk("%s: disabled chipset read-ahead (buggy RZ1000/RZ1001)\n", hwif->name); + } else { + hwif->serialized = 1; + hwif->drives[0].no_unmask = 1; + hwif->drives[1].no_unmask = 1; + printk("%s: serialized, disabled unmasking (buggy RZ1000/RZ1001)\n", hwif->name); + } +} + +#else + +__initfunc(static void init_rz1000 (byte bus, byte fn, const char *name)) { unsigned short reg, h; - printk("%s: buggy IDE controller: ", name); if (!pcibios_read_config_word (bus, fn, PCI_COMMAND, ®) && !(reg & 1)) { - printk("disabled (BIOS)\n"); + printk("%s: buggy IDE controller disabled (BIOS)\n", name); return; } if (!pcibios_read_config_word (bus, fn, 0x40, ®) && !pcibios_write_config_word(bus, fn, 0x40, reg & 0xdfff)) { - printk("disabled read-ahead\n"); + printk("IDE: disabled chipset read-ahead (buggy %s)\n", name); } else { - printk("\n"); for (h = 0; h < MAX_HWIFS; ++h) { ide_hwif_t *hwif = &ide_hwifs[h]; if ((hwif->io_ports[IDE_DATA_OFFSET] == 0x1f0 || hwif->io_ports[IDE_DATA_OFFSET] == 0x170) @@ -50,13 +71,15 @@ static void init_rz1000 (byte bus, byte fn, const char *name) hwif->serialized = 1; hwif->drives[0].no_unmask = 1; hwif->drives[1].no_unmask = 1; - printk(" %s: serialized, disabled unmasking\n", hwif->name); + if (hwif->io_ports[IDE_DATA_OFFSET] == 0x170) + hwif->channel = 1; + printk("%s: serialized, disabled unmasking (buggy %s)\n", hwif->name, name); } } } } -void ide_probe_for_rz100x (void) +__initfunc(void ide_probe_for_rz100x (void)) /* called from ide.c */ { byte index, bus, fn; @@ -65,3 +88,5 @@ void ide_probe_for_rz100x (void) for (index = 0; !pcibios_find_device (PCI_VENDOR_ID_PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001, index, &bus, &fn); ++index) init_rz1000 (bus, fn, "RZ1001"); } + +#endif CONFIG_BLK_DEV_IDEPCI |