#include <linux/stddef.h>
#include <asm/processor.h>
-#ifndef MAX_HWIFS
-# ifdef CONFIG_BLK_DEV_IDEPCI
-#define MAX_HWIFS 10
-# else
-#define MAX_HWIFS 6
-# endif
-#endif
-
-#define IDE_ARCH_OBSOLETE_DEFAULTS
-
static __inline__ int ide_probe_legacy(void)
{
#ifdef CONFIG_PCI
struct pci_dev *dev;
- if ((dev = pci_get_class(PCI_CLASS_BRIDGE_EISA << 8, NULL)) != NULL ||
- (dev = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL)) != NULL) {
- pci_dev_put(dev);
-
- return 1;
- }
+ /*
+ * This can be called on the ide_setup() path, super-early in
+ * boot. But the down_read() will enable local interrupts,
+ * which can cause some machines to crash. So here we detect
+ * and flag that situation and bail out early.
+ */
+ if (no_pci_devices())
+ return 0;
+ dev = pci_get_class(PCI_CLASS_BRIDGE_EISA << 8, NULL);
+ if (dev)
+ goto found;
+ dev = pci_get_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);
+ if (dev)
+ goto found;
return 0;
+found:
+ pci_dev_put(dev);
+ return 1;
#elif defined(CONFIG_EISA) || defined(CONFIG_ISA)
return 1;
#else
#endif
}
-static __inline__ int ide_default_irq(unsigned long base)
-{
- if (ide_probe_legacy())
- switch (base) {
- case 0x1f0:
- return 14;
- case 0x170:
- return 15;
- case 0x1e8:
- return 11;
- case 0x168:
- return 10;
- case 0x1e0:
- return 8;
- case 0x160:
- return 12;
- default:
- return 0;
- }
- else
- return 0;
-}
-
-static __inline__ unsigned long ide_default_io_base(int index)
-{
- if (ide_probe_legacy())
- switch (index) {
- case 0:
- return 0x1f0;
- case 1:
- return 0x170;
- case 2:
- return 0x1e8;
- case 3:
- return 0x168;
- case 4:
- return 0x1e0;
- case 5:
- return 0x160;
- default:
- return 0;
- }
- else
- return 0;
-}
-
-#define IDE_ARCH_OBSOLETE_INIT
-#define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */
-
-#ifdef CONFIG_BLK_DEV_IDEPCI
-#define ide_init_default_irq(base) (0)
-#else
-#define ide_init_default_irq(base) ide_default_irq(base)
-#endif
-
/* MIPS port and memory-mapped I/O string operations. */
static inline void __ide_flush_prologue(void)
{