From f426872e0cb9ee9bf740ac898810222f960ea456 Mon Sep 17 00:00:00 2001
From: Andrew Dennison <andrew@motec.com.au>
Date: Mon, 18 Oct 2021 10:40:13 +1100
Subject: [PATCH] efinix: read pll names from database

---
 litex/build/efinix/dbparser.py | 15 +++++++++++++++
 litex/build/efinix/platform.py |  5 ++---
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/litex/build/efinix/dbparser.py b/litex/build/efinix/dbparser.py
index 9f0e1d4f7..0b15d56cb 100644
--- a/litex/build/efinix/dbparser.py
+++ b/litex/build/efinix/dbparser.py
@@ -80,6 +80,21 @@ class EfinixDbParser():
 
         return None
 
+    def get_block_instance_names(self, block):
+        dmap = self.get_device_map(self.device)
+        die = self.get_die_file_name(dmap)
+        tree = et.parse(self.efinity_db_path + 'die/' + die)
+        root = tree.getroot()
+
+        peri = root.findall('efxpt:periphery_instance', namespaces)
+        names = []
+        for p in peri:
+            if p.get('block') == block:
+                names.append(p.get('name'))
+
+        print(f"block {block}: names:{names}")
+        return names
+
     def get_pll_inst_from_gpio_inst(self, dmap, inst):
         die = self.get_die_file_name(dmap)
         tree = et.parse(self.efinity_db_path + 'die/' + die)
diff --git a/litex/build/efinix/platform.py b/litex/build/efinix/platform.py
index 2f337e881..e0ed622dd 100644
--- a/litex/build/efinix/platform.py
+++ b/litex/build/efinix/platform.py
@@ -22,9 +22,6 @@ class EfinixPlatform(GenericPlatform):
         self.timing_model = self.device[-2:]
         self.device       = self.device[:-2]
 
-        self.pll_available = ['PLL_TL0', 'PLL_TR0', 'PLL_TR1', 'PLL_TR2', 'PLL_TR3', 'PLL_BR0', 'PLL_BR1', 'PLL_BR2', 'PLL_BL0']
-        self.pll_used = []
-
         if os.getenv("LITEX_ENV_EFINITY", False) == False:
             msg = "Unable to find or source Efinity toolchain, please either:\n"
             msg += "- Set LITEX_ENV_EFINITY environment variant to Efinity path.\n"
@@ -40,6 +37,8 @@ class EfinixPlatform(GenericPlatform):
             raise ValueError("Unknown toolchain")
 
         self.parser = EfinixDbParser(self.efinity_path, self.device)
+        self.pll_available = self.parser.get_block_instance_names('pll')
+        self.pll_used = []
 
     def get_verilog(self, *args, special_overrides=dict(), **kwargs):
         so = dict(common.efinix_special_overrides)