litei2c: add to litex

add litei2c to litex.

Signed-off-by: Fin Maaß <f.maass@vogl-electronic.com>

Author: maass-hamburg

litex/soc/integration/soc.py

@@ -2049,6 +2049,18 @@ def add_etherbone(self, name="etherbone", phy=None, phy_cd="eth", data_width=8,
             add_ip_address_constants(self,  "REMOTEIP", ethmac_remote_ip)
             add_mac_address_constants(self, "MACADDR",  ethmac_address)
 
+    # Add I2C Master -------------------------------------------------------------------------------
+    def add_i2c_master(self, name="i2cmaster", pads=None, **kwargs):
+        # Imports.
+        from litei2c import LiteI2C
+
+        # Core.
+        self.check_if_exists(name)
+        if pads is None:
+            pads = self.platform.request(name)
+        i2c = LiteI2C(self.sys_clk_freq, pads=pads, **kwargs)
+        self.add_module(name=name, module=i2c)
+
     # Add SPI Master --------------------------------------------------------------------------------
     def add_spi_master(self, name="spimaster", pads=None, data_width=8, spi_clk_freq=1e6, with_clk_divider=True, **kwargs):
         # Imports.

litex_setup.py

@@ -89,6 +89,7 @@ def __init__(self, url, clone="regular", develop=True, sha1=None, branch="master
     "litescope":    GitRepo(url="https://github.com/enjoy-digital/", tag=True),
     "litejesd204b": GitRepo(url="https://github.com/enjoy-digital/", tag=True),
     "litespi":      GitRepo(url="https://github.com/litex-hub/",     tag=True),
+    "litei2c":      GitRepo(url="https://github.com/litex-hub/",     tag=True, branch="main"),
 
     # LiteX Misc Cores.
     # -----------------