drivers: i2c: add Andes atciic100 driver

Add I2C driver for Andes atciic100. Driver supports I2C target mode and
tested on adp_xc7k_ae350 in runtime.

Signed-off-by: Wei-Tai Lee <[email protected]>

Author: wtlee1995

drivers/i2c/CMakeLists.txt

@@ -38,6 +38,7 @@ zephyr_library_sources_ifdef(CONFIG_I2C_RCAR		i2c_rcar.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_TCA954X		i2c_tca954x.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_XEC_V2		i2c_mchp_xec_v2.c)
 zephyr_library_sources_ifdef(CONFIG_I2C_GD32		i2c_gd32.c)
+zephyr_library_sources_ifdef(CONFIG_I2C_ANDES_ATCIIC100		i2c_andes_atciic100.c)
 
 zephyr_library_sources_ifdef(CONFIG_I2C_STM32_V1
 	i2c_ll_stm32_v1.c

drivers/i2c/Kconfig

@@ -56,6 +56,7 @@ source "drivers/i2c/Kconfig.test"
 source "drivers/i2c/Kconfig.rcar"
 source "drivers/i2c/Kconfig.tca954x"
 source "drivers/i2c/Kconfig.gd32"
+source "drivers/i2c/Kconfig.andes_atciic100"
 
 config I2C_INIT_PRIORITY
 	int "Init priority"

drivers/i2c/Kconfig.andes_atciic100

@@ -0,0 +1,13 @@
+# Kconfig Andes ATCIIC100 configuration option
+#
+# Copyright (c) 2022 Andes Technology Corporation.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+config I2C_ANDES_ATCIIC100
+	bool "Andes ATCIIC100 I2C driver"
+	default y
+	depends on DT_HAS_ANDESTECH_ATCIIC100_ENABLED
+	help
+	  Enable driver for the Andes ATCIIC100 I2C controller.