diff options
Diffstat (limited to 'include/asm-mips')
| -rw-r--r-- | include/asm-mips/compiler.h | 4 | ||||
| -rw-r--r-- | include/asm-mips/mach-generic/ide.h | 31 |
2 files changed, 34 insertions, 1 deletions
diff --git a/include/asm-mips/compiler.h b/include/asm-mips/compiler.h index 169ae26105e..aa6b876bbd7 100644 --- a/include/asm-mips/compiler.h +++ b/include/asm-mips/compiler.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2004 Maciej W. Rozycki + * Copyright (C) 2004, 2007 Maciej W. Rozycki * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -9,8 +9,10 @@ #define _ASM_COMPILER_H #if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) +#define GCC_IMM_ASM "n" #define GCC_REG_ACCUM "$0" #else +#define GCC_IMM_ASM "rn" #define GCC_REG_ACCUM "accum" #endif diff --git a/include/asm-mips/mach-generic/ide.h b/include/asm-mips/mach-generic/ide.h index 2b928577be5..a77128362a7 100644 --- a/include/asm-mips/mach-generic/ide.h +++ b/include/asm-mips/mach-generic/ide.h @@ -29,6 +29,35 @@ #define IDE_ARCH_OBSOLETE_DEFAULTS +static __inline__ int ide_probe_legacy(void) +{ +#ifdef CONFIG_PCI + struct pci_dev *dev; + /* + * 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 + return 0; +#endif +} + static __inline__ int ide_default_irq(unsigned long base) { switch (base) { @@ -45,6 +74,8 @@ static __inline__ int ide_default_irq(unsigned long base) static __inline__ unsigned long ide_default_io_base(int index) { + if (!ide_probe_legacy()) + return 0; /* * If PCI is present then it is not safe to poke around * the other legacy IDE ports. Only 0x1f0 and 0x170 are |