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[U-Boot,v3,06/11] ARM: uniphier: add sg_set_iectrl_range()

Message ID 1461207314-32272-7-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit 612ccd90012d7c77bbe67ec65f770b9e82fe4a35
Headers show

Commit Message

Masahiro Yamada April 21, 2016, 2:55 a.m. UTC 
For PH1-LD20 or later, per-pin input-enable control is supported,
that is, we need to set-up IECTRL registers for a group of pins.
This helper function will be useful for a bunch of register settings.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

Changes in v3: None
Changes in v2: None

 arch/arm/mach-uniphier/sg-regs.h | 8 ++++++++
 1 file changed, 8 insertions(+)
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Patch

diff --git a/arch/arm/mach-uniphier/sg-regs.h b/arch/arm/mach-uniphier/sg-regs.h
index 2cdc2db..4044245 100644
--- a/arch/arm/mach-uniphier/sg-regs.h
+++ b/arch/arm/mach-uniphier/sg-regs.h
@@ -126,6 +126,14 @@  static inline void sg_set_iectrl(unsigned pin)
 	writel(tmp, reg);
 }
 
+static inline void sg_set_iectrl_range(unsigned min, unsigned max)
+{
+	int i;
+
+	for (i = min; i <= max; i++)
+		sg_set_iectrl(i);
+}
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* ARCH_SG_REGS_H */