litesdcard: Name targets by vendor.frequency, not just vendor

In future we will want to support targets using the same vendor but
running at different clock frequencies.  Since the clock frequency is
a parameter to the gateware generation process, we now name the target
directories as "vendor.frequency", i.e., "xilinx.100e6" and
"lattice.48e6" rather than "xilinx" and "lattice".

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

Makefile

@@ -199,7 +199,7 @@ DFU_PRODUCT=5af0
 ECP_FLASH_OFFSET=0x80000
 toplevel=fpga/top-orangecrab0.2.vhdl
 litedram_target=orangecrab-85-0.2
-soc_extra_v += litesdcard/generated/lattice/litesdcard_core.v
+soc_extra_v += litesdcard/generated/lattice.48e6/litesdcard_core.v
 dmi_dtm=dmi_dtm_ecp5.vhdl
 endif
 

litesdcard/fusesoc-add-files.py

@@ -7,10 +7,12 @@ import pathlib
 class LiteSDCardGenerator(Generator):
     def run(self):
         vendor = self.config.get('vendor')
+        clk = self.config.get('frequency')
+        vf = vendor + "." + clk
 
         # Collect a bunch of directory path
         script_dir = os.path.dirname(sys.argv[0])
-        gen_dir = os.path.join(script_dir, "generated", vendor)
+        gen_dir = os.path.join(script_dir, "generated", vf)
 
         print("Adding LiteSDCard for vendor... ", vendor)
 

litesdcard/gen-src/generate.sh

@@ -18,8 +18,8 @@ for i_clk in $VENDORS
 do
     i=$(echo $i_clk | cut -d : -f 1)
     clk=$(echo $i_clk | cut -d : -f 2)
-    TARGET_BUILD_PATH=$BUILD_PATH/$i
+    TARGET_BUILD_PATH=$BUILD_PATH/$i.$clk
-    TARGET_GEN_PATH=$GEN_PATH/$i
+    TARGET_GEN_PATH=$GEN_PATH/$i.$clk
     rm -rf $TARGET_BUILD_PATH
     rm -rf $TARGET_GEN_PATH
     mkdir -p $TARGET_BUILD_PATH

microwatt.core

@@ -461,11 +461,11 @@ generate:
 
   litesdcard_arty:
     generator: litesdcard_gen
-    parameters: {vendor : xilinx}
+    parameters: {vendor : xilinx, frequency : 100e6}
 
   litesdcard_nexys_video:
     generator: litesdcard_gen
-    parameters: {vendor : xilinx}
+    parameters: {vendor : xilinx, frequency : 100e6}
 
   litedram_nexys_video:
     generator: litedram_gen
@@ -493,7 +493,7 @@ generate:
 
   litesdcard_wukong-v2:
     generator: litesdcard_gen
-    parameters: {vendor : xilinx}
+    parameters: {vendor : xilinx, frequency : 100e6}
 
 parameters:
   memory_size: