The audio support on J784S4-EVM is using PCM3168A[0] codec connected to McASP0 serializers. - Add the nodes for sound-card, audio codec, MAIN_I2C3 and McASP0. - Add pinmux for I2C3, McASP0 and AUDIO_EXT_REFCLK1. - Add necessary GPIO hogs to route the MAIN_I2C3 lines and McASP serializer. - Add idle-state as 1 in mux1 to route McASP clock signals. [0]: <https://www.ti.com/lit/gpn/pcm3168a> Signed-off-by: Jayesh Choudhary <j-choudhary@xxxxxx> --- arch/arm64/boot/dts/ti/k3-j784s4-evm.dts | 111 +++++++++++++++++++++++ 1 file changed, 111 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts index a4a6efcce362..9338d987180d 100644 --- a/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-j784s4-evm.dts @@ -312,6 +312,20 @@ mux1: mux-controller { compatible = "gpio-mux"; #mux-state-cells = <1>; mux-gpios = <&exp2 14 GPIO_ACTIVE_HIGH>; + idle-state = <1>; + }; + + codec_audio: sound { + compatible = "ti,j7200-cpb-audio"; + model = "j784s4-cpb"; + + ti,cpb-mcasp = <&mcasp0>; + ti,cpb-codec = <&pcm3168a_1>; + + clocks = <&k3_clks 265 0>, <&k3_clks 265 1>, + <&k3_clks 157 34>, <&k3_clks 157 63>; + clock-names = "cpb-mcasp-auxclk", "cpb-mcasp-auxclk-48000", + "cpb-codec-scki", "cpb-codec-scki-48000"; }; }; @@ -422,6 +436,28 @@ main_usbss0_pins_default: main-usbss0-default-pins { J784S4_IOPAD(0x0ec, PIN_OUTPUT, 6) /* (AN37) TIMER_IO1.USB0_DRVVBUS */ >; }; + + main_i2c3_pins_default: main-i2c3-default-pins { + pinctrl-single,pins = < + J784S4_IOPAD(0x064, PIN_INPUT, 13) /* (AF38) MCAN0_TX.I2C3_SCL */ + J784S4_IOPAD(0x060, PIN_INPUT, 13) /* (AE36) MCASP2_AXR1.I2C3_SDA */ + >; + }; + + main_mcasp0_pins_default: main-mcasp0-default-pins { + pinctrl-single,pins = < + J784S4_IOPAD(0x038, PIN_OUTPUT_PULLDOWN, 1) /* (AK35) MCASP0_ACLKX */ + J784S4_IOPAD(0x03c, PIN_OUTPUT_PULLDOWN, 1) /* (AK38) MCASP0_AFSX */ + J784S4_IOPAD(0x07c, PIN_OUTPUT_PULLDOWN, 1) /* (AJ38) MCASP0_AXR3 */ + J784S4_IOPAD(0x080, PIN_INPUT_PULLDOWN, 1) /* (AK34) MCASP0_AXR4 */ + >; + }; + + audio_ext_refclk1_pins_default: audio-ext-refclk1-default-pins { + pinctrl-single,pins = < + J784S4_IOPAD(0x078, PIN_OUTPUT, 1) /* (AH37) MCAN2_RX.AUDIO_EXT_REFCLK1 */ + >; + }; }; &wkup_pmx2 { @@ -881,6 +917,14 @@ exp1: gpio@20 { "PCIE0_4L_RC_RSTZ", "PCIE0_4L_EP_RST_EN", "PCIE1_4L_PRSNT#", "PCIE0_4L_PRSNT#", "CDCI1_OE1/OE4", "CDCI1_OE2/OE3", "AUDIO_MUX_SEL", "EXP_MUX2", "EXP_MUX3", "GESI_EXP_PHY_RSTZ"; + + p12-hog { + /* P12 - AUDIO_MUX_SEL */ + gpio-hog; + gpios = <12 GPIO_ACTIVE_HIGH>; + output-low; + line-name = "AUDIO_MUX_SEL"; + }; }; exp2: gpio@22 { @@ -896,6 +940,22 @@ exp2: gpio@22 { "CANUART_MUX1_SEL1", "ENET1_EXP_PWRDN", "ENET1_EXP_RESETZ", "ENET1_I2CMUX_SEL", "ENET1_EXP_SPARE2", "ENET2_EXP_RESETZ", "USER_INPUT1", "USER_LED1", "USER_LED2"; + + p13-hog { + /* P13 - CANUART_MUX_SEL0 */ + gpio-hog; + gpios = <13 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "CANUART_MUX_SEL0"; + }; + + p15-hog { + /* P15 - CANUART_MUX1_SEL1 */ + gpio-hog; + gpios = <15 GPIO_ACTIVE_HIGH>; + output-high; + line-name = "CANUART_MUX1_SEL1"; + }; }; }; @@ -1373,3 +1433,54 @@ &pcie0_rc { phys = <&serdes1_pcie0_link>; phy-names = "pcie-phy"; }; + +&k3_clks { + /* Confiure AUDIO_EXT_REFCLK1 pin as output */ + pinctrl-names = "default"; + pinctrl-0 = <&audio_ext_refclk1_pins_default>; +}; + +&main_i2c3 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c3_pins_default>; + clock-frequency = <400000>; + + exp3: gpio@20 { + compatible = "ti,tca6408"; + reg = <0x20>; + gpio-controller; + #gpio-cells = <2>; + }; + + pcm3168a_1: audio-codec@44 { + compatible = "ti,pcm3168a"; + reg = <0x44>; + #sound-dai-cells = <1>; + reset-gpios = <&exp3 0 GPIO_ACTIVE_LOW>; + clocks = <&audio_refclk1>; + clock-names = "scki"; + VDD1-supply = <&vsys_3v3>; + VDD2-supply = <&vsys_3v3>; + VCCAD1-supply = <&vsys_5v0>; + VCCAD2-supply = <&vsys_5v0>; + VCCDA1-supply = <&vsys_5v0>; + VCCDA2-supply = <&vsys_5v0>; + }; +}; + +&mcasp0 { + status = "okay"; + #sound-dai-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&main_mcasp0_pins_default>; + op-mode = <0>; /* MCASP_IIS_MODE */ + tdm-slots = <2>; + auxclk-fs-ratio = <256>; + serial-dir = < /* 0: INACTIVE, 1: TX, 2: RX */ + 0 0 0 1 + 2 0 0 0 + 0 0 0 0 + 0 0 0 0 + >; +}; -- 2.25.1
