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rockchip: i2c: Enable i2c for rk3399

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To enable mipi display, we need to enable pmic
rk808 first for lcd3v3 power,which use i2c0 to
communicate with soc. So enable i2c0.

Signed-off-by: Eric Gao <eric.gao@rock-chips.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
eric.gao@rock-chips.com 2017-04-10 10:17:03 +08:00 • committed by Simon Glass
parent bc8e8fe40b
commit b644354a7c
3 changed files with 18 additions and 0 deletions
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16
arch/arm/dts/rk3399.dtsi
View file

@ -26,6 +26,7 @@
serial4 = &uart4;
mmc0 = &sdhci;
mmc1 = &sdmmc;
i2c0 = &i2c0;
};
cpus {
@ -668,6 +669,21 @@
status = "disabled";
};
i2c0: i2c@ff3c0000 {
compatible = "rockchip,rk3399-i2c";
reg = <0x0 0xff3c0000 0x0 0x1000>;
assigned-clocks = <&pmucru SCLK_I2C0_PMU>;
assigned-clock-rates = <200000000>;
clocks = <&pmucru SCLK_I2C0_PMU>, <&pmucru PCLK_I2C0_PMU>;
clock-names = "i2c", "pclk";
interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH 0>;
pinctrl-names = "default";
pinctrl-0 = <&i2c0_xfer>;
#address-cells = <1>;
#size-cells = <0>;
status = "disabled";
};
pinctrl: pinctrl {
u-boot,dm-pre-reloc;
compatible = "rockchip,rk3399-pinctrl";

1
configs/evb-rk3399_defconfig
View file

@ -60,3 +60,4 @@ CONFIG_USB_EHCI_GENERIC=y
CONFIG_USB_STORAGE=y
CONFIG_USE_TINY_PRINTF=y
CONFIG_ERRNO_STR=y
CONFIG_SYS_I2C_ROCKCHIP=y

1
drivers/i2c/rk_i2c.c
View file

@ -383,6 +383,7 @@ static const struct udevice_id rockchip_i2c_ids[] = {
{ .compatible = "rockchip,rk3066-i2c" },
{ .compatible = "rockchip,rk3188-i2c" },
{ .compatible = "rockchip,rk3288-i2c" },
{ .compatible = "rockchip,rk3399-i2c" },
{ }
};