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ARM: uniphier: add sg_set_iectrl() function

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This helper function would be useful for new SoCs with per-pin
input enable controlling, such as PH1-LD20, PH1-LD11, etc.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2016-03-18 16:41:50 +09:00
parent fc26b7b91d
commit c8cc7213a5
1 changed files with 11 additions and 0 deletions
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11
arch/arm/mach-uniphier/sg-regs.h
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@ -115,6 +115,17 @@ static inline void sg_set_pinsel(unsigned pin, unsigned muxval,
writel(tmp, reg); writel(tmp, reg);
} }
static inline void sg_set_iectrl(unsigned pin)
{
unsigned bit = pin % 32;
unsigned long reg = SG_IECTRL + pin / 32 * 4;
u32 tmp;
tmp = readl(reg);
tmp |= 1 << bit;
writel(tmp, reg);
}
#endif /* __ASSEMBLY__ */ #endif /* __ASSEMBLY__ */
#endif /* ARCH_SG_REGS_H */ #endif /* ARCH_SG_REGS_H */