2017-09-08 18:22:31

by Franklin S Cooper Jr

Subject: [PATCH v2 0/2] ARM: dts: keystone-k2g-evm: Add I2C nodes and enable I2C0 on K2G EVM

Add I2C DT nodes for 66AK2G. Also enable I2C0 in K2G EVM which is needed
to access the I2C EEPROM.

Version 2 changes:
No real changes. Split patches into their own patchset

Murali Karicheri (1):
ARM: dts: keystone-k2g-evm: Add I2C EEPROM DT entry

Vitaly Andrianov (1):
ARM: dts: keystone-k2g: Add I2C nodes

arch/arm/boot/dts/keystone-k2g-evm.dts | 19 ++++++++++++++++++
arch/arm/boot/dts/keystone-k2g.dtsi | 36 ++++++++++++++++++++++++++++++++++
2 files changed, 55 insertions(+)

--
2.9.4.dirty

2017-09-08 18:22:28

by Franklin S Cooper Jr

Subject: [PATCH v2 1/2] ARM: dts: keystone-k2g: Add I2C nodes

From: Vitaly Andrianov <[email protected]>

Add nodes for the various I2C instances.

Signed-off-by: Vitaly Andrianov <[email protected]>
Signed-off-by: Franklin S Cooper Jr <[email protected]>
Reviewed-by: Grygorii Strashko <[email protected]>
---
arch/arm/boot/dts/keystone-k2g.dtsi | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g.dtsi b/arch/arm/boot/dts/keystone-k2g.dtsi
index 826b286..8a98d76 100644
--- a/arch/arm/boot/dts/keystone-k2g.dtsi
+++ b/arch/arm/boot/dts/keystone-k2g.dtsi
@@ -28,6 +28,9 @@

aliases {
serial0 = &uart0;
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
rproc0 = &dsp0;
};

@@ -133,6 +136,39 @@
clocks = <&k2g_clks 0x0009 1>;
};

+ i2c0: i2c@2530000 {
+ compatible = "ti,keystone-i2c";
+ reg = <0x02530000 0x400>;
+ clocks = <&k2g_clks 0x003a 0>;
+ power-domains = <&k2g_pds 0x003a>;
+ interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@2530400 {
+ compatible = "ti,keystone-i2c";
+ reg = <0x02530400 0x400>;
+ clocks = <&k2g_clks 0x003b 0>;
+ power-domains = <&k2g_pds 0x003b>;
+ interrupts = <GIC_SPI 89 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@2530800 {
+ compatible = "ti,keystone-i2c";
+ reg = <0x02530800 0x400>;
+ clocks = <&k2g_clks 0x003c 0>;
+ power-domains = <&k2g_pds 0x003c>;
+ interrupts = <GIC_SPI 90 IRQ_TYPE_EDGE_RISING>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
kirq0: keystone_irq@026202a0 {
compatible = "ti,keystone-irq";
interrupts = <GIC_SPI 1 IRQ_TYPE_EDGE_RISING>;
--
2.9.4.dirty

2017-09-08 18:23:29

by Franklin S Cooper Jr

Subject: [PATCH v2 2/2] ARM: dts: keystone-k2g-evm: Add I2C EEPROM DT entry

From: Murali Karicheri <[email protected]>

K2G EVM has an onboard I2C EEPROM connected to I2C0. This patch adds
the necessary DT entry for the AT24CM01 EEPROM.

Signed-off-by: Murali Karicheri <[email protected]>
Signed-off-by: Franklin S Cooper Jr <[email protected]>
---
arch/arm/boot/dts/keystone-k2g-evm.dts | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/keystone-k2g-evm.dts b/arch/arm/boot/dts/keystone-k2g-evm.dts
index f462f10..a6ad5fc 100644
--- a/arch/arm/boot/dts/keystone-k2g-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2g-evm.dts
@@ -81,6 +81,14 @@
K2G_CORE_IOPAD(0x1110) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* mmc1_cmd.mmc1_cmd */
>;
};
+
+ i2c0_pins: pinmux_i2c0_pins {
+ pinctrl-single,pins = <
+ K2G_CORE_IOPAD(0x137c) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* i2c0_scl.i2c0_scl */
+ K2G_CORE_IOPAD(0x1380) (BUFFER_CLASS_B | PIN_PULLUP | MUX_MODE0) /* i2c0_sda.i2c0_sda */
+ >;
+ };
+
};

&uart0 {
@@ -112,3 +120,14 @@
memory-region = <&dsp_common_memory>;
status = "okay";
};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins>;
+ status = "okay";
+
+ eeprom@50 {
+ compatible = "atmel,24c1024";
+ reg = <0x50>;
+ };
+};
--
2.9.4.dirty