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Message-ID: <00bb552d-be6f-464f-9ca9-03a6d4ea26b7@linaro.org>
Date: Fri, 6 Oct 2023 16:46:48 +0200
From: neil.armstrong@...aro.org
To: Dmitry Rokosov <ddrokosov@...utedevices.com>, jbrunet@...libre.com,
mturquette@...libre.com, khilman@...libre.com,
martin.blumenstingl@...glemail.com
Cc: kernel@...rdevices.ru, rockosov@...il.com,
linux-amlogic@...ts.infradead.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
George Stark <gnstark@...utedevices.com>
Subject: Re: [PATCH v1] arm64: dts: amlogic: a1: support all i2c masters and
their muxes
On 06/10/2023 13:41, Dmitry Rokosov wrote:
> A1 SoC family has four i2c masters: i2c0 (I2CM_A), i2c1 (I2CM_B), i2c2
> (I2CM_C) and i2c3 (I2CM_D).
>
> Signed-off-by: George Stark <gnstark@...utedevices.com>
> Signed-off-by: Dmitry Rokosov <ddrokosov@...utedevices.com>
> ---
> arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 144 ++++++++++++++++++++++
> 1 file changed, 144 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> index 823714bcb7a0..f53000a5d0cc 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
> @@ -126,6 +126,106 @@ gpio: bank@400 {
> gpio-ranges = <&periphs_pinctrl 0 0 62>;
> };
>
> + i2c0_f11_pins: i2c0-f11 {
> + mux {
> + groups = "i2c0_sck_f11",
> + "i2c0_sda_f12";
> + function = "i2c0";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c0_f9_pins: i2c0-f9 {
> + mux {
> + groups = "i2c0_sck_f9",
> + "i2c0_sda_f10";
> + function = "i2c0";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c1_x_pins: i2c1-x {
> + mux {
> + groups = "i2c1_sck_x",
> + "i2c1_sda_x";
> + function = "i2c1";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c1_a_pins: i2c1-a {
> + mux {
> + groups = "i2c1_sck_a",
> + "i2c1_sda_a";
> + function = "i2c1";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c2_x0_pins: i2c2-x0 {
> + mux {
> + groups = "i2c2_sck_x0",
> + "i2c2_sda_x1";
> + function = "i2c2";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c2_x15_pins: i2c2-x15 {
> + mux {
> + groups = "i2c2_sck_x15",
> + "i2c2_sda_x16";
> + function = "i2c2";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c2_a4_pins: i2c2-a4 {
> + mux {
> + groups = "i2c2_sck_a4",
> + "i2c2_sda_a5";
> + function = "i2c2";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c2_a8_pins: i2c2-a8 {
> + mux {
> + groups = "i2c2_sck_a8",
> + "i2c2_sda_a9";
> + function = "i2c2";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c3_x_pins: i2c3-x {
> + mux {
> + groups = "i2c3_sck_x",
> + "i2c3_sda_x";
> + function = "i2c3";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> + i2c3_f_pins: i2c3-f {
> + mux {
> + groups = "i2c3_sck_f",
> + "i2c3_sda_f";
> + function = "i2c3";
> + bias-pull-up;
> + drive-strength-microamp = <3000>;
> + };
> + };
> +
> uart_a_pins: uart-a {
> mux {
> groups = "uart_a_tx",
> @@ -377,6 +477,17 @@ clkc_periphs: clock-controller@800 {
> "hifi_pll", "xtal";
> };
>
> + i2c0: i2c@...0 {
> + compatible = "amlogic,meson-axg-i2c";
> + status = "disabled";
> + reg = <0x0 0x1400 0x0 0x20>;
> + interrupts = <GIC_SPI 32 IRQ_TYPE_EDGE_RISING>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clocks = <&clkc_periphs CLKID_I2C_M_A>;
> + power-domains = <&pwrc PWRC_I2C_ID>;
> + };
> +
> uart_AO: serial@...0 {
> compatible = "amlogic,meson-a1-uart",
> "amlogic,meson-ao-uart";
> @@ -437,6 +548,39 @@ saradc: adc@...0 {
> status = "disabled";
> };
>
> + i2c1: i2c@...0 {
> + compatible = "amlogic,meson-axg-i2c";
> + status = "disabled";
> + reg = <0x0 0x5c00 0x0 0x20>;
> + interrupts = <GIC_SPI 68 IRQ_TYPE_EDGE_RISING>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clocks = <&clkc_periphs CLKID_I2C_M_B>;
> + power-domains = <&pwrc PWRC_I2C_ID>;
> + };
> +
> + i2c2: i2c@...0 {
> + compatible = "amlogic,meson-axg-i2c";
> + status = "disabled";
> + reg = <0x0 0x6800 0x0 0x20>;
> + interrupts = <GIC_SPI 76 IRQ_TYPE_EDGE_RISING>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clocks = <&clkc_periphs CLKID_I2C_M_C>;
> + power-domains = <&pwrc PWRC_I2C_ID>;
> + };
> +
> + i2c3: i2c@...0 {
> + compatible = "amlogic,meson-axg-i2c";
> + status = "disabled";
> + reg = <0x0 0x6c00 0x0 0x20>;
> + interrupts = <GIC_SPI 78 IRQ_TYPE_EDGE_RISING>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clocks = <&clkc_periphs CLKID_I2C_M_D>;
> + power-domains = <&pwrc PWRC_I2C_ID>;
> + };
> +
> usb2_phy1: phy@...0 {
> compatible = "amlogic,a1-usb2-phy";
> clocks = <&clkc_periphs CLKID_USB_PHY_IN>;
Reviewed-by: Neil Armstrong <neil.armstrong@...aro.org>
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