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/*
* DaVinci IO address definitions
*
* Copied from include/asm/arm/arch-omap/io.h
*
* 2007 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
#ifndef __ASM_ARCH_IO_H
#define __ASM_ARCH_IO_H
#define IO_SPACE_LIMIT 0xffffffff
/*
* ----------------------------------------------------------------------------
* I/O mapping
* ----------------------------------------------------------------------------
*/
#define IO_PHYS 0x01c00000
#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
#define IO_SIZE 0x00400000
#define IO_VIRT (IO_PHYS + IO_OFFSET)
#define io_v2p(va) ((va) - IO_OFFSET)
#define __IO_ADDRESS(x) ((x) + IO_OFFSET)
/*
* We don't actually have real ISA nor PCI buses, but there is so many
* drivers out there that might just work if we fake them...
*/
#define __io(a) __typesafe_io(a)
#define __mem_pci(a) (a)
#define __mem_isa(a) (a)
#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa))
#ifdef __ASSEMBLER__
#define IOMEM(x) x
#else
#define IOMEM(x) ((void __force __iomem *)(x))
/*
* Functions to access the DaVinci IO region
*
* NOTE: - Use davinci_read/write[bwl] for physical register addresses
* - Use __raw_read/write[bwl]() for virtual register addresses
* - Use IO_ADDRESS(phys_addr) to convert registers to virtual addresses
* - DO NOT use hardcoded virtual addresses to allow changing the
* IO address space again if needed
*/
#define davinci_readb(a) __raw_readb(IO_ADDRESS(a))
#define davinci_readw(a) __raw_readw(IO_ADDRESS(a))
#define davinci_readl(a) __raw_readl(IO_ADDRESS(a))
#define davinci_writeb(v, a) __raw_writeb(v, IO_ADDRESS(a))
#define davinci_writew(v, a) __raw_writew(v, IO_ADDRESS(a))
#define davinci_writel(v, a) __raw_writel(v, IO_ADDRESS(a))
#endif /* __ASSEMBLER__ */
#endif /* __ASM_ARCH_IO_H */
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