[nrf noup] cmake: define pm.yml for nffs subsystem

This pm.yml defines a partition 'nffs_storage'.

Signed-off-by: Håkon Øye Amundsen <[email protected]>

Author: hakonfam

subsys/fs/CMakeLists.txt

@@ -16,6 +16,8 @@ if(CONFIG_FILE_SYSTEM)
   target_link_libraries_ifdef(CONFIG_FAT_FILESYSTEM_ELM   FS INTERFACE ELMFAT)
   target_link_libraries_ifdef(CONFIG_FILE_SYSTEM_LITTLEFS FS INTERFACE LITTLEFS)
   target_link_libraries_ifdef(CONFIG_FILE_SYSTEM_NFFS     FS INTERFACE NFFS)
+
+  add_partition_manager_config(pm.yml)
 endif()
 
 add_subdirectory_ifdef(CONFIG_FCB  ./fcb)

subsys/fs/Kconfig

@@ -75,6 +75,14 @@ endmenu
 menu "NFFS Settings"
 	visible if FILE_SYSTEM_NFFS
 
+# This config must be compatible with
+# nrf/subsys/partition_manager/Kconfig.template.partition_size
+config PM_PARTITION_SIZE_NFFS_STORAGE
+	hex "Flash space reserved for nffs storage partition"
+	default 0x6000
+	help
+	  Flash space set aside for the nffs storage partition.
+
 config FS_NFFS_FLASH_DEV_NAME
 	string "Flash device name to be used"
 

subsys/fs/nffs_fs.c

@@ -23,8 +23,8 @@
 
 #if USE_PARTITION_MANAGER
 #include <pm_config.h>
-#define NFFS_FLASH_AREA_STORAGE_OFFSET PM_MCUBOOT_STORAGE_ADDRESS
-#define NFFS_FLASH_AREA_STORAGE_SIZE PM_MCUBOOT_STORAGE_SIZE
+#define NFFS_FLASH_AREA_STORAGE_OFFSET PM_NFFS_STORAGE_ADDRESS
+#define NFFS_FLASH_AREA_STORAGE_SIZE PM_NFFS_STORAGE_SIZE
 
 #else
 #include <generated_dts_board.h>

subsys/fs/pm.yml

@@ -0,0 +1,7 @@
+#include <autoconf.h>
+
+#ifdef CONFIG_FILE_SYSTEM_NFFS
+nffs_storage:
+  placement: {after: [mcuboot_storage, app]}
+  size: CONFIG_PM_PARTITION_SIZE_NFFS_STORAGE
+#endif