86 lines
1.9 KiB
Diff
86 lines
1.9 KiB
Diff
From 400645dd70ae5a0efbbce35067c8674d380ed2a7 Mon Sep 17 00:00:00 2001
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From: Hyeonki Hong <hhk7734@gmail.com>
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Date: Wed, 13 May 2020 10:37:28 +0900
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Subject: [PATCH 21/74] ODROID-C4: arm64/dts: add i2c2, i2c3 node
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Change-Id: Id75f935111744ff6945791deefef20f897dc98ac
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(cherry picked from commit 3f4b2ffd0905946175c478baa65361695e78e0de)
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---
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.../boot/dts/amlogic/meson-sm1-odroid-c4.dts | 53 +++++++++++++++++++
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1 file changed, 53 insertions(+)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts
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index 831053aa6dff..5988dc5f34d0 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts
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+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-c4.dts
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@@ -16,6 +16,8 @@ / {
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aliases {
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ethernet0 = ðmac;
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+ i2c0 = &i2c2;
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+ i2c1 = &i2c3;
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serial0 = &uart_AO;
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serial1 = &uart_A;
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spi0 = &spicc0;
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@@ -434,6 +436,57 @@ &ir {
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linux,rc-map-name = "rc-odroid";
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};
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+&i2c2 {
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+ status = "okay";
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+
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+ /*
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+ * 40 Pin Header : SDA(GPIOX.17->3 Pin)
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+ * SCL(GPIOX.18->5 Pin)
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+ */
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c2_master_pins1>;
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+
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+ /* default 400k */
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+ clock-frequency = <400000>;
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+};
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+
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+&i2c3 {
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+ /* default i2c clock-frequency is 100Khz */
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+ status = "okay";
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+
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+ /*
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+ * 40 Pin Header : SDA(GPIOA.14->27 Pin)
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+ * SCL(GPIOA.15->28 Pin)
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+ */
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c3_master_pins2>;
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+
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+ /* default 100k */
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+ clock-frequency = <100000>;
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+};
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+
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+&periphs_pinctrl {
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+ i2c2_master_pins1: i2c2-master-pins1 {
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+ mux {
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+ groups = "i2c2_sda_x",
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+ "i2c2_sck_x";
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+ function = "i2c2";
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+ bias-pull-up;
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+ drive-strength-microamp = <3000>;
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+ };
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+ };
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+
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+ i2c3_master_pins2: i2c3-master-pins2 {
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+ mux {
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+ groups = "i2c3_sda_a",
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+ "i2c3_sck_a";
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+ function = "i2c3";
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+ bias-pull-up;
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+ drive-strength-microamp = <3000>;
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+ };
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+ };
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+};
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+
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&pwm_AO_cd {
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pinctrl-0 = <&pwm_ao_d_e_pins>;
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pinctrl-names = "default";
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--
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2.25.1
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