diff options
Diffstat (limited to 'include/asm-arm/arch-orion5x')
| -rw-r--r-- | include/asm-arm/arch-orion5x/io.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/include/asm-arm/arch-orion5x/io.h b/include/asm-arm/arch-orion5x/io.h index 5148ab7ad1f..50f8c880220 100644 --- a/include/asm-arm/arch-orion5x/io.h +++ b/include/asm-arm/arch-orion5x/io.h @@ -20,11 +20,10 @@ static inline void __iomem * __arch_ioremap(unsigned long paddr, size_t size, unsigned int mtype) { void __iomem *retval; - - if (mtype == MT_DEVICE && size && paddr >= ORION5X_REGS_PHYS_BASE && - paddr + size <= ORION5X_REGS_PHYS_BASE + ORION5X_REGS_SIZE) { - retval = (void __iomem *)ORION5X_REGS_VIRT_BASE + - (paddr - ORION5X_REGS_PHYS_BASE); + unsigned long offs = paddr - ORION5X_REGS_PHYS_BASE; + if (mtype == MT_DEVICE && size && offs < ORION5X_REGS_SIZE && + size <= ORION5X_REGS_SIZE && offs + size <= ORION5X_REGS_SIZE) { + retval = (void __iomem *)ORION5X_REGS_VIRT_BASE + offs; } else { retval = __arm_ioremap(paddr, size, mtype); } |