dont bring in csr locations when not necessary

firmware/generate_csr_locations.py

@@ -6,6 +6,7 @@ reg_names = {
         "dac" : ("miso", "ctrl")
 }
 max_num = 8
+# TODO: make dependent on adc, dac
 
 def get_reg(j, name, num, pos):
     return j["csr_registers"][f"{name}{num}_{pos}"]["addr"]
@@ -17,13 +18,15 @@ print('''
 typedef volatile uint32_t *csr_t;
 #define ADC_MAX 8
 #define DAC_MAX 8
+#ifdef CSR_LOCATIONS
 ''')
 
 for conv in iter(reg_names):
     for reg in reg_names[conv]:
-        print(f"const csr_t {conv}_{reg}[{max_num}] =", "{")
+        print(f"static const csr_t {conv}_{reg}[{max_num}] =", "{")
         for i in range(0,max_num):
             print("\t (csr_t)", get_reg(j, conv, i, reg), end='')
             if i != max_num - 1:
                 print(",")
         print("\n};")
+print("#endif // CSR_LOCATION")