From b6633d778675a58fba1d7f795169da212a76231d Mon Sep 17 00:00:00 2001 From: Peter Ujfalusi Date: Fri, 20 Nov 2020 09:35:32 +0200 Subject: [PATCH] arm64: dts: ti: k3-j7200-som-p0: main_i2c0 have an ioexpander on the SOM 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 Signed-off-by: Nishanth Menon Reviewed-by: Vignesh Raghavendra Reviewed-by: Grygorii Strashko Link: https://lore.kernel.org/r/20201120073533.24486-2-peter.ujfalusi@ti.com --- .../dts/ti/k3-j7200-common-proc-board.dts | 11 -------- arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi | 26 +++++++++++++++++++ 2 files changed, 26 insertions(+), 11 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts index 96fa263652488..1a8dd23eda33b 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts +++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts @@ -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>; diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi index fbd17d38f6b65..7b5e9aa0324e1 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi @@ -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"; + }; +}; -- 2.30.2