There are four I2C controllers in A1 series, Share the same comptible with AXG. Compared to AXG, Drive strength feature is newly added in A1. Signed-off-by: Jian Hu <jian.hu@xxxxxxxxxxx> --- This patch depends on A1 clock patchset at [0][3] Changes since v1 at [1]: -change reg length to 0x20 -assign i2c bus alias in dts file -add new feature note compared to AXG in changelog Changes since v2 at [2]: -remove the dependence the commit description -remove i2c alias in dtsi -reorder the i2c nodes -reorder the i2c pins [0] https://lkml.kernel.org/r/20191206074052.15557-1-jian.hu@xxxxxxxxxxx [1] https://lkml.kernel.org/r/20191202111253.94872-1-jian.hu@xxxxxxxxxxx [2] https://lkml.kernel.org/r/20191211032802.83309-1-jian.hu@xxxxxxxxxxx [3] https://lkml.kernel.org/r/20191206074052.15557-1-jian.hu@xxxxxxxxxxx --- --- arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 142 ++++++++++++++++++++++ 1 file changed, 142 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi index eab2ecd36aa8..1542eeee699d 100644 --- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi @@ -117,6 +117,16 @@ }; }; + i2c0: i2c@1400 { + compatible = "amlogic,meson-axg-i2c"; + 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>; + status = "disabled"; + }; + uart_AO: serial@1c00 { compatible = "amlogic,meson-gx-uart", "amlogic,meson-ao-uart"; @@ -136,6 +146,36 @@ clock-names = "xtal", "pclk", "baud"; status = "disabled"; }; + + i2c1: i2c@5c00 { + compatible = "amlogic,meson-axg-i2c"; + 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>; + status = "disabled"; + }; + + i2c2: i2c@6800 { + compatible = "amlogic,meson-axg-i2c"; + 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>; + status = "disabled"; + }; + + i2c3: i2c@6c00 { + compatible = "amlogic,meson-axg-i2c"; + 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>; + status = "disabled"; + }; }; gic: interrupt-controller@ff901000 { @@ -171,3 +211,105 @@ #clock-cells = <0>; }; }; + +&periphs_pinctrl { + i2c0_f9_pins:i2c0-f9 { + mux { + groups = "i2c0_sck_f9", + "i2c0_sda_f10"; + function = "i2c0"; + bias-pull-up; + drive-strength-microamp = <3000>; + }; + }; + + i2c0_f11_pins:i2c0-f11 { + mux { + groups = "i2c0_sck_f11", + "i2c0_sda_f12"; + function = "i2c0"; + 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>; + }; + }; + + i2c1_x_pins:i2c1-x { + mux { + groups = "i2c1_sck_x", + "i2c1_sda_x"; + function = "i2c1"; + 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>; + }; + }; + + 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>; + }; + }; + + i2c3_f_pins:i2c3-f { + mux { + groups = "i2c3_sck_f", + "i2c3_sda_f"; + function = "i2c3"; + 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>; + }; + }; +}; -- 2.24.0
