5cfb19ac60
There are instances of IO_ADDRESS() being used for system module (sysmod) register access. Eliminate this in favor of a ioremap() based access. ioremap() the entire sysmod address space once during boot-up and provide a helper macro to access specific register offsets within the address space. With this, also eliminate ioremap() of specific sysmodule registers related to VPIF happening in DM646x EVM code. While at it, also eliminate some duplicate sysmod register offset macros defined in code and place offset definitions at one place in davinci.h Signed-off-by: Manjunath Hadli <manjunath.hadli@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> [nsekhar@ti.com: removed the addition of ifndef __ASSEMBLER__ in davinci.h, eliminate IO_ADDRESS() usage left out in dm646x.c, cleanup VPIF sysmodule register access as part of this patch and keep all sysmod offsets in davinci.h Also, convert the WARN_ON() on failure to setup sysmod base to BUG_ON()] Signed-off-by: Sekhar Nori <nsekhar@ti.com>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
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* Hardware definitions common to all DaVinci family processors
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*
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* Author: Kevin Hilman, Deep Root Systems, LLC
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*
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* 2007 (c) Deep Root Systems, LLC. This file is licensed under
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* the terms of the GNU General Public License version 2. This program
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* is licensed "as is" without any warranty of any kind, whether express
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* or implied.
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*/
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#ifndef __ASM_ARCH_HARDWARE_H
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#define __ASM_ARCH_HARDWARE_H
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/*
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* Before you add anything to ths file:
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*
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* This header is for defines common to ALL DaVinci family chips.
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* Anything that is chip specific should go in <chipname>.h,
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* and the chip/board init code should then explicitly include
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* <chipname>.h
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*/
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/*
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* I/O mapping
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*/
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#define IO_PHYS 0x01c00000UL
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#define IO_OFFSET 0xfd000000 /* Virtual IO = 0xfec00000 */
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#define IO_SIZE 0x00400000
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#define IO_VIRT (IO_PHYS + IO_OFFSET)
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#define io_v2p(va) ((va) - IO_OFFSET)
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#define __IO_ADDRESS(x) ((x) + IO_OFFSET)
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#define IO_ADDRESS(pa) IOMEM(__IO_ADDRESS(pa))
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#ifdef __ASSEMBLER__
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#define IOMEM(x) x
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#else
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#define IOMEM(x) ((void __force __iomem *)(x))
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#endif
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#endif /* __ASM_ARCH_HARDWARE_H */
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