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authorwdenk <wdenk>2004-04-18 19:43:36 +0000
committerwdenk <wdenk>2004-04-18 19:43:36 +0000
commit998eaaecd46ee5f00550e30e606cb5556e0b9345 (patch)
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parent6e5923851ec5c11a36136abc77160d834537c4dd (diff)
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* Configure PPChameleon board to use redundand environment in flash
* Configure PPChameleon board to use JFFS2 NAND support. * Added support for JFFS2 filesystem (read-only) on top of NAND flash
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+JFFS2 NAND support:
+
+To ebable, use the following #define in the board configuration file:
+
+#define CONFIG_JFFS2_NAND 1
+
+Configuration of partitions is similar to how this is done in U-Boot
+for JFFS2 on top NOR flash. If a single parition is used, it can be
+configured using the following #defines in the configuration file:
+
+#define CONFIG_JFFS2_NAND_DEV 0 /* nand device jffs2 lives on */
+#define CONFIG_JFFS2_NAND_OFF 0 /* start of jffs2 partition */
+#define CONFIG_JFFS2_NAND_SIZE 2*1024*1024 /* size of jffs2 partition */
+
+If more than a single partition is desired, the user can define a
+CFG_JFFS_CUSTOM_PART macro and implement a
+
+ struct part_info* jffs2_part_info(int part_num)
+
+function in a board-specific module. An example of such function is
+available in common/cmd_jffs2.c
+
+The default configuration for the DAVE board has a single JFFS2
+partition of 2 MB size.