From b644354a7c255defe0086c15ccb6b298f27a8bcf Mon Sep 17 00:00:00 2001
From: "eric.gao@rock-chips.com" <eric.gao@rock-chips.com>
Date: Mon, 10 Apr 2017 10:17:03 +0800
Subject: [PATCH] rockchip: i2c: Enable i2c for rk3399
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>
---
arch/arm/dts/rk3399.dtsi | 16 ++++++++++++++++
configs/evb-rk3399_defconfig | 1 +
drivers/i2c/rk_i2c.c | 1 +
3 files changed, 18 insertions(+)
diff --git a/arch/arm/dts/rk3399.dtsi b/arch/arm/dts/rk3399.dtsi
index dbe55f2b32..d94d7802cb 100644
--- a/arch/arm/dts/rk3399.dtsi
+++ b/arch/arm/dts/rk3399.dtsi
@@ -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";
diff --git a/configs/evb-rk3399_defconfig b/configs/evb-rk3399_defconfig
index 50b0d749ab..c644084cdf 100644
--- a/configs/evb-rk3399_defconfig
+++ b/configs/evb-rk3399_defconfig
@@ -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
diff --git a/drivers/i2c/rk_i2c.c b/drivers/i2c/rk_i2c.c
index af925cecdb..76f41f7e85 100644
--- a/drivers/i2c/rk_i2c.c
+++ b/drivers/i2c/rk_i2c.c
@@ -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" },
{ }
};
--
2.39.5