From: Vasily Khoruzhick <anars...@gmail.com>
Allwinner A64 has a I2C controller, which is in the R_ MMIO zone and has
two groups of pinmuxes on PL bank, so it's called R_I2C.
Add support for this I2C controller and the pinmux which doesn't conflict
with RSB
Signed-off-by: Vasily Khoruzhick <anars...@gmail.com>
Signed-off-by: Vagrant Cascadian <vagr...@debian.org>
---
arch/arm/dts/sun50i-a64.dtsi | 17 +++++++++++++++++
arch/arm/include/asm/arch-sunxi/gpio.h | 1 +
arch/arm/mach-sunxi/Kconfig | 1 +
board/sunxi/board.c | 6 ++++++
4 files changed, 25 insertions(+)
diff --git a/arch/arm/dts/sun50i-a64.dtsi b/arch/arm/dts/sun50i-a64.dtsi
index 7a083637c4..80ddcf0af3 100644
--- a/arch/arm/dts/sun50i-a64.dtsi
+++ b/arch/arm/dts/sun50i-a64.dtsi
@@ -627,6 +627,18 @@
};
};
+ r_i2c: i2c@1f02400 {
+ compatible = "allwinner,sun50i-a64-i2c",
+ "allwinner,sun6i-a31-i2c";
+ reg = <0x01f02400 0x400>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&r_ccu 9>;
+ resets = <&r_ccu 5>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
gic: interrupt-controller@1c81000 {
compatible = "arm,gic-400";
reg = <0x01c81000 0x1000>,
@@ -679,6 +691,11 @@
pins = "PL0", "PL1";
function = "s_rsb";
};
+
+ r_i2c_pins_a: i2c-a {
+ pins = "PL8", "PL9";
+ function = "s_i2c";
+ };
};
r_rsb: rsb@1f03400 {
diff --git a/arch/arm/include/asm/arch-sunxi/gpio.h
b/arch/arm/include/asm/arch-sunxi/gpio.h
index 6a5eafc3d3..2daf23f6f5 100644
--- a/arch/arm/include/asm/arch-sunxi/gpio.h
+++ b/arch/arm/include/asm/arch-sunxi/gpio.h
@@ -211,6 +211,7 @@ enum sunxi_gpio_number {
#define SUN8I_H3_GPL_R_TWI 2
#define SUN8I_A23_GPL_R_TWI 3
#define SUN8I_GPL_R_UART 2
+#define SUN50I_GPL_R_TWI 2
#define SUN9I_GPN_R_RSB 3
diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index ae77ee9e8e..fccef9d706 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -273,6 +273,7 @@ config MACH_SUN50I
select DM_I2C
select MMC_SUNXI_SUPPORTS_CALIBRATION
select PHY_SUN4I_USB
+ select SUN6I_PRCM
select SUNXI_DE2
select SUNXI_GEN_SUN6I
select SUPPORT_SPL
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index d1d7f9f400..90f8bc0a6e 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -168,10 +168,16 @@ void i2c_init_board(void)
#endif
#ifdef CONFIG_R_I2C_ENABLE
+#ifdef CONFIG_MACH_SUN50I
+ clock_twi_onoff(5, 1);
+ sunxi_gpio_set_cfgpin(SUNXI_GPL(8), SUN50I_GPL_R_TWI);
+ sunxi_gpio_set_cfgpin(SUNXI_GPL(9), SUN50I_GPL_R_TWI);
+#else
clock_twi_onoff(5, 1);
sunxi_gpio_set_cfgpin(SUNXI_GPL(0), SUN8I_H3_GPL_R_TWI);
sunxi_gpio_set_cfgpin(SUNXI_GPL(1), SUN8I_H3_GPL_R_TWI);
#endif
+#endif
}
#if defined(CONFIG_ENV_IS_IN_MMC) && defined(CONFIG_ENV_IS_IN_FAT)
--
2.11.0
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