diff options
| author | Vaishnav Achath <vaishnav.a@ti.com> | 2024-02-15 14:25:13 +0530 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2024-02-19 09:56:39 +0530 |
| commit | 12d82b15b94c2b44bee7c8c90682850d3ad9b120 (patch) | |
| tree | eef8759b5db3739c8653f29a3b7105121e7d18d1 /arch/arm64/boot/dts/ti | |
| parent | 5dcc1aaf0b7aa861bf9cfd48a9db46a4a3b2d47a (diff) | |
arm64: dts: ti: k3-am69-sk: Enable camera peripherals
CSI cameras are controlled using I2C. On AM69 Starter Kit, this is routed
to I2C-1, so enable the instance, TCA9543 I2C switch and the TCA6408
GPIO expander on the bus. AM69 SK has the CSI2RX routed to a MIPI CSI
connector and to 22-pin RPi camera connector through an analog mux with
GPIO control, model that so that an overlay can control the mux state
according to connected cameras.
AM69 SK schematics: https://www.ti.com/lit/zip/sprr466
Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
Reviewed-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20240215085518.552692-5-vaishnav.a@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'arch/arm64/boot/dts/ti')
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am69-sk.dts | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am69-sk.dts b/arch/arm64/boot/dts/ti/k3-am69-sk.dts index 475bcec99bd6..aa770e82de27 100644 --- a/arch/arm64/boot/dts/ti/k3-am69-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am69-sk.dts @@ -322,6 +322,14 @@ }; }; }; + + csi_mux: mux-controller { + compatible = "gpio-mux"; + #mux-state-cells = <1>; + mux-gpios = <&exp2 1 GPIO_ACTIVE_HIGH>; + idle-state = <0>; + }; + }; &main_pmx0 { @@ -341,6 +349,13 @@ >; }; + main_i2c1_pins_default: main-i2c1-default-pins { + pinctrl-single,pins = < + J784S4_IOPAD(0x0ac, PIN_INPUT_PULLUP, 13) /* (AE34) MCASP0_AXR15.I2C1_SCL */ + J784S4_IOPAD(0x0b0, PIN_INPUT_PULLUP, 13) /* (AL33) MCASP1_AXR3.I2C1_SDA */ + >; + }; + main_mmc1_pins_default: main-mmc1-default-pins { bootph-all; pinctrl-single,pins = < @@ -775,6 +790,42 @@ }; }; +&main_i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c1_pins_default>; + clock-frequency = <400000>; + status = "okay"; + + exp2: gpio@21 { + compatible = "ti,tca6408"; + reg = <0x21>; + gpio-controller; + #gpio-cells = <2>; + gpio-line-names = "CSI_VIO_SEL", "CSI_MUX_SEL_2", "CSI2_RSTz", + "IO_EXP_CAM0_GPIO1", "IO_EXP_CAM1_GPIO1"; + }; + + i2c-mux@70 { + compatible = "nxp,pca9543"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x70>; + + cam0_i2c: i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + }; + + cam1_i2c: i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + }; +}; + &main_sdhci0 { bootph-all; /* eMMC */ |