[U-Boot] [PATCH 7/7] ARM: UniPhier: enable I2C input pins for PH1-sLD8

Masahiro Yamada yamada.m at jp.panasonic.com
Thu Feb 5 06:43:00 CET 2015


To use I2C controllers on PH1-sLD8, the bit 10 (SCL0/SDA0)
and bit 11 (SCL1/SDA1) of IECTRL register must be set.

Signed-off-by: Masahiro Yamada <yamada.m at jp.panasonic.com>
---

 arch/arm/cpu/armv7/uniphier/ph1-sld8/pinctrl.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/cpu/armv7/uniphier/ph1-sld8/pinctrl.c b/arch/arm/cpu/armv7/uniphier/ph1-sld8/pinctrl.c
index 2b6403f..5e80335 100644
--- a/arch/arm/cpu/armv7/uniphier/ph1-sld8/pinctrl.c
+++ b/arch/arm/cpu/armv7/uniphier/ph1-sld8/pinctrl.c
@@ -26,6 +26,15 @@ void pin_init(void)
 	sg_set_pinsel(111, 1);	/* SBI0 -> RXD3 */
 #endif
 
+#ifdef CONFIG_SYS_I2C_UNIPHIER
+	{
+		u32 tmp;
+		tmp = readl(SG_IECTRL);
+		tmp |= 0xc00; /* enable SCL0, SDA0, SCL1, SDA1 */
+		writel(tmp, SG_IECTRL);
+	}
+#endif
+
 #ifdef CONFIG_NAND_DENALI
 	sg_set_pinsel(15, 0);	/* XNFRE_GB -> XNFRE_GB */
 	sg_set_pinsel(16, 0);	/* XNFWE_GB -> XNFWE_GB */
-- 
1.9.1



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