[U-Boot] [PATCH v3 3/5] x86: dts: edison: configure I2C#6 pins

Georgii Staroselskii georgii.staroselskii at emlid.com
Tue Sep 11 10:31:08 UTC 2018


Now that we have the pinctrl driver for Merrifield in place we can make
use of it and set I2C#6 pins appropriately.

Initial configuration came from the firmware.  Which quite likely has
been used in the phones, where that is not part of Atom peripheral, is
in use. Thus we need to override the leftover.

Signed-off-by: Georgii Staroselskii <georgii.staroselskii at emlid.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko at gmail.com>
Reviewed-by: Bin Meng <bmeng.cn at gmail.com>
---
 arch/x86/dts/edison.dts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/x86/dts/edison.dts b/arch/x86/dts/edison.dts
index 1da7f54..0dd7240 100644
--- a/arch/x86/dts/edison.dts
+++ b/arch/x86/dts/edison.dts
@@ -85,4 +85,26 @@
 		compatible = "intel,reset-tangier";
 		u-boot,dm-pre-reloc;
 	};
+
+	pinctrl {
+		compatible = "intel,pinctrl-tangier";
+		reg = <0xff0c0000 0x8000>;
+
+		/*
+		 * Initial configuration came from the firmware.
+		 * Which quite likely has been used in the phones, where I2C #8,
+		 * that is not part of Atom peripheral, is in use.
+		 * Thus we need to override the leftover.
+		 */
+		i2c6_scl at 0 {
+			pad-offset = <111>;
+			mode-func = <1>;
+			protected;
+		};
+		i2c6_sda at 0 {
+			pad-offset = <112>;
+			mode-func = <1>;
+			protected;
+		};
+	};
 };
-- 
2.7.4



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