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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-20 18:44:37 +0100 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-20 18:44:37 +0100 |
| commit | 09f0551d20ddf6d22c333adcc59f2b1148734273 (patch) | |
| tree | 321c877843fc24ef6047225569a66479d9d6269b /arch | |
| parent | a507ef3ac68f0671fdd3f824885cd7f1ea1040b1 (diff) | |
| download | linux-3.10-09f0551d20ddf6d22c333adcc59f2b1148734273.tar.gz linux-3.10-09f0551d20ddf6d22c333adcc59f2b1148734273.tar.bz2 linux-3.10-09f0551d20ddf6d22c333adcc59f2b1148734273.zip | |
[PATCH] ARM: Add iomap support for ARM
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/Kconfig | 4 | ||||
| -rw-r--r-- | arch/arm/mm/ioremap.c | 47 |
2 files changed, 47 insertions, 4 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 475950c8a83..1a1773f8139 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -67,10 +67,6 @@ config GENERIC_BUST_SPINLOCK config GENERIC_ISA_DMA bool -config GENERIC_IOMAP - bool - default y - config FIQ bool diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 00bb8fd37a5..7110e54182b 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -170,3 +170,50 @@ void __iounmap(void __iomem *addr) vfree((void *) (PAGE_MASK & (unsigned long) addr)); } EXPORT_SYMBOL(__iounmap); + +#ifdef __io +void __iomem *ioport_map(unsigned long port, unsigned int nr) +{ + return __io(port); +} +EXPORT_SYMBOL(ioport_map); + +void ioport_unmap(void __iomem *addr) +{ +} +EXPORT_SYMBOL(ioport_unmap); +#endif + +#ifdef CONFIG_PCI +#include <linux/pci.h> +#include <linux/ioport.h> + +void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +{ + unsigned long start = pci_resource_start(dev, bar); + unsigned long len = pci_resource_len(dev, bar); + unsigned long flags = pci_resource_flags(dev, bar); + + if (!len || !start) + return NULL; + if (maxlen && len > maxlen) + len = maxlen; + if (flags & IORESOURCE_IO) + return ioport_map(start, len); + if (flags & IORESOURCE_MEM) { + if (flags & IORESOURCE_CACHEABLE) + return ioremap(start, len); + return ioremap_nocache(start, len); + } + return NULL; +} +EXPORT_SYMBOL(pci_iomap); + +void pci_iounmap(struct pci_dev *dev, void __iomem *addr) +{ + if ((unsigned long)addr >= VMALLOC_START && + (unsigned long)addr < VMALLOC_END) + iounmap(addr); +} +EXPORT_SYMBOL(pci_iounmap); +#endif |