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arm64: dts: ti: k3-j7200-som-p0: main_i2c0 have an ioexpander on the SOM

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The J7200 SOM have additional io expander which is used to control several
SOM level muxes to make sure that the correct signals are routed to the
correct pin on the SOM <-> CPB connectors.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Link: https://lore.kernel.org/r/20201120073533.24486-2-peter.ujfalusi@ti.com
This commit is contained in:
Peter Ujfalusi 2020-11-20 09:35:32 +02:00 committed by Nishanth Menon
parent 6804a987de
commit b6633d7786
2 changed files with 26 additions and 11 deletions
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11
arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
View File

@ -43,13 +43,6 @@
};
&main_pmx0 {
main_i2c0_pins_default: main-i2c0-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */
J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */
>;
};
main_i2c1_pins_default: main-i2c1-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xdc, PIN_INPUT_PULLUP, 3) /* (U3) ECAP0_IN_APWM_OUT.I2C1_SCL */
@ -146,10 +139,6 @@
};
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
exp1: gpio@20 {
compatible = "ti,tca6416";
reg = <0x20>;

26
arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
View File

@ -48,6 +48,15 @@
};
};
&main_pmx0 {
main_i2c0_pins_default: main-i2c0-pins-default {
pinctrl-single,pins = <
J721E_IOPAD(0xd4, PIN_INPUT_PULLUP, 0) /* (V3) I2C0_SCL */
J721E_IOPAD(0xd8, PIN_INPUT_PULLUP, 0) /* (W2) I2C0_SDA */
>;
};
};
&hbmc {
/* OSPI and HBMC are muxed inside FSS, Bootloader will enable
* appropriate node based on board detection
@ -131,3 +140,20 @@
&mailbox0_cluster11 {
status = "disabled";
};
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
exp_som: gpio@21 {
compatible = "ti,tca6408";
reg = <0x21>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "USB2.0_MUX_SEL", "CANUART_MUX1_SEL0",
"CANUART_MUX2_SEL0", "CANUART_MUX_SEL1",
"UART/LIN_MUX_SEL", "TRC_D17/AUDIO_REFCLK_SEL",
"GPIO_LIN_EN", "CAN_STB";
};
};