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#define STSYS_WriteRegDev32LE(Address_p, value)          writel((u32)value, (void*)Address_p)
ÔÚinclude/asm-sh/io.h
#define writel(v,a) ({__raw_writel((v),(a));mb();})
#define __raw_write(v,a)  __writel((v),(void __iomem *)(a))
#define __writel(v,a) sh_mv.mv_writel(v,a)
ÔÚarch/sh/kernel/setup.cÖаÑsh_mv.mv_writel->generic_write1
ÔÚarch/sh/kernel/io_generic.cÖÐ
void generic_writel(U32 b, void __iomem *addr)
{
         ctrl_outl(b,(unsigned long __force)addr);
}
ÔÚinclude/asm-sh/io.h
static inline void ctrl_outl(unsigned inst b,unsigned long addr)
{
      *(volatile unsigned long *)addr = b;
}
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