From mboxrd@z Thu Jan 1 00:00:00 1970 From: eric.y.miao@gmail.com (Eric Miao) Date: Fri, 25 Jun 2010 15:44:30 +0800 Subject: [PATCH 3/4] [ARM] Introduce USE_DEFAULT_IO_H to use default definitions in asm/io.h In-Reply-To: <1277451871-15319-1-git-send-email-eric.y.miao@gmail.com> References: <1277451871-15319-1-git-send-email-eric.y.miao@gmail.com> Message-ID: <1277451871-15319-4-git-send-email-eric.y.miao@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Eric Miao For those machines that can just use the default definitions in asm/io.h, there is no need to have a machine specific mach/io.h. Introduce an config option for them. Signed-off-by: Eric Miao --- arch/arm/Kconfig | 3 +++ arch/arm/include/asm/io.h | 6 ++++++ 2 files changed, 9 insertions(+), 0 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 1f254bd..46c00a1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -189,6 +189,9 @@ config VECTORS_BASE help The base address of exception vectors. +config USE_DEFAULT_IO_H + def_bool n + source "init/Kconfig" source "kernel/Kconfig.freezer" diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index c980156..179d317 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -97,7 +97,13 @@ static inline void __iomem *__typesafe_io(unsigned long addr) /* * Now, pick up the machine-defined IO definitions */ +#ifndef CONFIG_USE_DEFAULT_IO_H #include +#else +#define IO_SPACE_LIMIT 0xffffffff +#define __io(a) __typesafe_io(a) +#define __mem_pci(a) (a) +#endif /* * IO port access primitives -- 1.7.1