forked from Minki/linux
710224fa27
This fixes the regression caused by the commit 6fee48cd33
("dma-mapping: arm: use generic pci_set_dma_mask and
pci_set_consistent_dma_mask").
ARM needs to clip the dma coherent mask for dmabounce devices. This
restores the old trick.
Note that strictly speaking, the DMA API doesn't allow architectures to do
such but I'm not sure it's worth adding the new API to set the dma mask
that allows architectures to clip it.
Reported-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
44 lines
1.0 KiB
C
44 lines
1.0 KiB
C
/*
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* arch/arm/mach-ixp4xx/include/mach/hardware.h
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*
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* Copyright (C) 2002 Intel Corporation.
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* Copyright (C) 2003-2004 MontaVista Software, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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/*
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* Hardware definitions for IXP4xx based systems
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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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#define PCIBIOS_MIN_IO 0x00001000
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#ifdef CONFIG_IXP4XX_INDIRECT_PCI
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#define PCIBIOS_MIN_MEM 0x10000000 /* 1 GB of indirect PCI MMIO space */
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#define PCIBIOS_MAX_MEM 0x4FFFFFFF
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#else
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#define PCIBIOS_MIN_MEM 0x48000000 /* 64 MB of PCI MMIO space */
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#define PCIBIOS_MAX_MEM 0x4BFFFFFF
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#endif
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#define ARCH_HAS_DMA_SET_COHERENT_MASK
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#define pcibios_assign_all_busses() 1
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/* Register locations and bits */
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#include "ixp4xx-regs.h"
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#ifndef __ASSEMBLER__
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#include <mach/cpu.h>
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#endif
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/* Platform helper functions and definitions */
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#include "platform.h"
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#endif /* _ASM_ARCH_HARDWARE_H */
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