[dm][ethernet] Add ethernet and drivers for DM

components/drivers/ethernet/Kconfig

@@ -0,0 +1,13 @@
+menuconfig RT_USING_ETHERNET
+    bool "Using Ethernet device drivers"
+    depends on RT_USING_DM
+    depends on RT_USING_SAL
+    depends on RT_USING_NETDEV
+    depends on RT_USING_LWIP
+    default n
+
+if RT_USING_ETHERNET
+    rsource "cadence/Kconfig"
+    rsource "synopsys/Kconfig"
+    osource "$(SOC_DM_ETHERNET_DIR)/Kconfig"
+endif

components/drivers/ethernet/SConscript

@@ -0,0 +1,21 @@
+from building import *
+
+group = []
+
+if not GetDepend(['RT_USING_ETHERNET']):
+    Return('group')
+
+cwd = GetCurrentDir()
+list = os.listdir(cwd)
+CPPPATH = [cwd + '/../include']
+
+src = ['ethernet_dm.c']
+
+group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
+
+for d in list:
+    path = os.path.join(cwd, d)
+    if os.path.isfile(os.path.join(path, 'SConscript')):
+        group = group + SConscript(os.path.join(d, 'SConscript'))
+
+Return('group')

components/drivers/ethernet/cadence/Kconfig

@@ -0,0 +1,15 @@
+config RT_ETHERNET_CADENCE
+    bool "Cadence GEM/MACB Ethernet"
+    depends on RT_USING_PHY_V2
+    depends on RT_USING_DMA
+    depends on RT_USING_PIN
+
+config RT_ETHERNET_CADENCE_PCI
+    bool "PCI supported"
+    depends on RT_ETHERNET_CADENCE
+    depends on RT_USING_PCI
+
+config RT_ETHERNET_CADENCE_PTP
+    bool "PTP supported"
+    depends on RT_ETHERNET_CADENCE
+    depends on RT_USING_PTP

components/drivers/ethernet/cadence/SConscript

@@ -0,0 +1,21 @@
+from building import *
+
+group = []
+
+if not GetDepend(['RT_ETHERNET_CADENCE']):
+    Return('group')
+
+cwd = GetCurrentDir()
+CPPPATH = [cwd + '/../../include', cwd + '/../../phy']
+
+src = ['macb.c']
+
+if GetDepend(['RT_ETHERNET_CADENCE_PCI']):
+    src += ['macb_pci.c']
+
+if GetDepend(['RT_ETHERNET_CADENCE_PTP']):
+    src += ['macb_ptp.c']
+
+group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')