SAMA5 ELF configuration with address environments finally builds without errors

arch/arm/src/sama5/Kconfig

@@ -4553,15 +4553,15 @@ endif # SAMA5_DDRCS_RESERVE
 config SAMA5_DDRCS_PGHEAP
 	bool "Include DDR-SDRAM in page cache"
 	default y
-	depends on SAMA5_DDRCS && ARCH_ADDRENV
+	depends on (SAMA5_DDRCS || SAMA5_BOOT_SDRAM) && ARCH_ADDRENV
 	---help---
 		Include a portion of DDR-SDRAM memory in the page cache.
 
 if SAMA5_DDRCS_PGHEAP
 
 config SAMA5_DDRCS_PGHEAP_OFFSET
-	int "DDR-SDRAM heap offset"
-	default 0
+	hex "DDR-SDRAM heap offset"
+	default 0x0
 	---help---
 		Preserve this number of bytes at the beginning of SDRAM.  The
 		portion of DRAM beginning at this offset from the DDRCS base will

arch/arm/src/sama5/sam_pgalloc.c

@@ -57,11 +57,11 @@
  * handle any other possibility.
  */
 
-#ifdef CONFIG_SAMA5_DDRCS_PGHEAP
+#ifndef CONFIG_SAMA5_DDRCS_PGHEAP
 #  error CONFIG_SAMA5_DDRCS_PGHEAP must be selected
 #endif
 
-#ifdef CONFIG_SAMA5_DDRCS_PGHEAP_OFFSET
+#ifndef CONFIG_SAMA5_DDRCS_PGHEAP_OFFSET
 #  error CONFIG_SAMA5_DDRCS_PGHEAP_OFFSET must be specified
 #endif
 
@@ -69,7 +69,7 @@
 #  warning CONFIG_SAMA5_DDRCS_PGHEAP_OFFSET is not aligned to a page boundary
 #endif
 
-#ifdef CONFIG_SAMA5_DDRCS_PGHEAP_SIZE
+#ifndef CONFIG_SAMA5_DDRCS_PGHEAP_SIZE
 #  error CONFIG_SAMA5_DDRCS_PGHEAP_SIZE must be specified
 #endif
 

configs/sama5d4-ek/README.txt

@@ -3689,6 +3689,10 @@ Configurations
       System Type -> Architecture Options
         CONFIG_ARCH_ADDRENV=n                  : Disable address environment support
 
+      System Type -> Heap Configuration
+        CONFIG_SAMA5_DDRCS_RESERVE=n           : Don't reserve any page cache memory
+        CONFIG_SAMA5_DDRCS_PGHEAP=n            : Don't try to set up the page allocator
+
       Memory Management
         CONFIG_GRAN=n                          : Disable the granule allocator 
         CONFIG_MM_PGALLOC=n                    : Disable the page allocator

configs/sama5d4-ek/elf/defconfig

@@ -240,7 +240,10 @@ CONFIG_SAMA5_BOOT_SDRAM=y
 #
 CONFIG_SAMA5_ISRAM_HEAP=y
 CONFIG_SAMA5_DDRCS_RESERVE=y
-CONFIG_SAMA5_DDRCS_HEAP_END=0x2fa00000
+CONFIG_SAMA5_DDRCS_HEAP_END=0x28000000
+CONFIG_SAMA5_DDRCS_PGHEAP=y
+CONFIG_SAMA5_DDRCS_PGHEAP_OFFSET=0x28000000
+CONFIG_SAMA5_DDRCS_PGHEAP_SIZE=134217728
 
 #
 # Architecture Options