50 lines
1.3 KiB
Diff
50 lines
1.3 KiB
Diff
--- kernel/arch/arm/include/asm/io.h.orig 2011-07-26 00:44:15.000000000 -0400
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+++ kernel/arch/arm/include/asm/io.h 2011-07-26 00:40:41.000000000 -0400
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@@ -55,6 +55,46 @@
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#define __raw_readw(a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a))
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#define __raw_readl(a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a))
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+#undef __raw_writew
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+#define __raw_writew(v,a) __dj_writew(v,a)
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+static inline void
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+__dj_writew(unsigned short v, unsigned short *a)
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+{
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+ __chk_io_ptr(a);
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+ asm volatile ("strh %0,[%1,#0]" :: "r" (v), "r" (a));
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+}
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+
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+#undef __raw_writel
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+#define __raw_writel(v,a) __dj_writel(v,a)
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+static inline void
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+__dj_writel(unsigned int v, unsigned int *a)
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+{
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+ __chk_io_ptr(a);
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+ asm volatile ("str %0,[%1,#0]" :: "r" (v), "r" (a));
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+}
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+
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+#undef __raw_readw
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+#define __raw_readw(a) __dj_readw(a)
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+static inline unsigned short
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+__dj_readw(unsigned short *a)
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+{
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+ unsigned short rv;
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+ __chk_io_ptr(a);
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+ asm volatile ("ldrh %0,[%1,#0]" : "=r" (rv) : "r" (a));
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+ return rv;
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+}
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+
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+#undef __raw_readl
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+#define __raw_readl(a) __dj_readl(a)
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+static inline unsigned int
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+__dj_readl(unsigned int *a)
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+{
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+ unsigned long rv;
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+ __chk_io_ptr(a);
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+ asm volatile ("ldr %0,[%1,#0]" : "=r" (rv) : "r" (a));
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+ return rv;
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+}
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+
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/*
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* Architecture ioremap implementation.
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*/
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