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Diffstat (limited to 'qemu/roms/u-boot/doc/README.JFFS2_NAND')
| -rw-r--r-- | qemu/roms/u-boot/doc/README.JFFS2_NAND | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/doc/README.JFFS2_NAND b/qemu/roms/u-boot/doc/README.JFFS2_NAND new file mode 100644 index 000000000..09788d534 --- /dev/null +++ b/qemu/roms/u-boot/doc/README.JFFS2_NAND @@ -0,0 +1,24 @@ +JFFS2 NAND support: + +To enable, 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 partition 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 +CONFIG_SYS_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. |