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| author | Ye Li <ye.li@nxp.com> | 2017-05-15 04:04:07 -0500 |
|---|---|---|
| committer | Ye Li <ye.li@nxp.com> | 2017-05-15 04:08:54 -0500 |
| commit | 25515dfb16d987931152c1d93aed3a16f7197921 (patch) | |
| tree | 8a8e0f632da27a13dd9f3190657f493796fcd57c /arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts | |
| parent | 09f2bc9e534bd9235a298bac6f0df940b315e9b6 (diff) | |
| download | u-boot-imx-25515dfb16d987931152c1d93aed3a16f7197921.zip u-boot-imx-25515dfb16d987931152c1d93aed3a16f7197921.tar.gz u-boot-imx-25515dfb16d987931152c1d93aed3a16f7197921.tar.bz2 | |
MLK-14890 i2c: Enable I2C force idle bus
This patch enables the I2C force idle bus for all i.MX6 and i.MX7 boards to avoid
i2c bus problem during reboot. To use it, we must add some i2c properties in DTB file
and the GPIO pinctrl for i2c.
For mx6qsabreauto, mx6slevk, mx6sxsabresd and mx6sxscm, these boards call the
setup_i2c. To remove conflict, change to use "setup_i2c" only for non-DM i2c driver.
Signed-off-by: Ye Li <ye.li@nxp.com>
Diffstat (limited to 'arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts')
| -rw-r--r-- | arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts b/arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts index eb4af7d..e74707b 100644 --- a/arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts +++ b/arch/arm/dts/imx7d-12x12-lpddr3-arm2.dts @@ -245,9 +245,12 @@ &i2c1 { clock-frequency = <100000>; - pinctrl-names = "default", "sleep"; + pinctrl-names = "default", "sleep", "gpio"; pinctrl-0 = <&pinctrl_i2c1_1>; pinctrl-1 = <&pinctrl_i2c1_1>; + pinctrl-2 = <&pinctrl_i2c1_1_gpio>; + scl-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; + sda-gpios = <&gpio4 9 GPIO_ACTIVE_HIGH>; status = "okay"; pmic: pfuze3000@08 { @@ -343,9 +346,12 @@ &i2c3 { clock-frequency = <100000>; - pinctrl-names = "default", "sleep"; + pinctrl-names = "default", "sleep", "gpio"; pinctrl-0 = <&pinctrl_i2c3_1>; pinctrl-1 = <&pinctrl_i2c3_1>; + pinctrl-2 = <&pinctrl_i2c3_1_gpio>; + scl-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>; + sda-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>; status = "okay"; max7322: gpio@68 { @@ -613,6 +619,13 @@ >; }; + pinctrl_i2c1_1_gpio: i2c1grp-1-gpio { + fsl,pins = < + MX7D_PAD_I2C1_SDA__GPIO4_IO9 0x7f + MX7D_PAD_I2C1_SCL__GPIO4_IO8 0x7f + >; + }; + pinctrl_i2c2_1: i2c2grp-1 { fsl,pins = < MX7D_PAD_I2C2_SDA__I2C2_SDA 0x4000007f @@ -627,6 +640,13 @@ >; }; + pinctrl_i2c3_1_gpio: i2c3grp-1-gpio { + fsl,pins = < + MX7D_PAD_I2C3_SDA__GPIO4_IO13 0x7f + MX7D_PAD_I2C3_SCL__GPIO4_IO12 0x7f + >; + }; + pinctrl_i2c4_1: i2c4grp-1 { fsl,pins = < MX7D_PAD_I2C4_SDA__I2C4_SDA 0x4000007f |