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Diffstat (limited to 'doc/README.JFFS2')
| -rw-r--r-- | doc/README.JFFS2 | 43 |
1 files changed, 3 insertions, 40 deletions
diff --git a/doc/README.JFFS2 b/doc/README.JFFS2 index f0e9bc1b37..604e5b9686 100644 --- a/doc/README.JFFS2 +++ b/doc/README.JFFS2 @@ -19,52 +19,15 @@ more or less a bubble sort. That algorithm is known to be O(n^2), thus you should really consider if you can avoid it! -There is two ways for JFFS2 to find the disk. The default way uses -the flash_info structure to find the start of a JFFS2 disk (called -partition in the code) and you can change where the partition is with -two defines. +There only one way for JFFS2 to find the disk. It uses the flash_info +structure to find the start of a JFFS2 disk (called partition in the code) +and you can change where the partition is with two defines. CONFIG_SYS_JFFS2_FIRST_BANK defined the first flash bank to use CONFIG_SYS_JFFS2_FIRST_SECTOR defines the first sector to use - - -The second way is to define CONFIG_SYS_JFFS_CUSTOM_PART and implement the -jffs2_part_info(int part_num) function in your board specific files. -In this mode CONFIG_SYS_JFFS2_FIRST_BANK and CONFIG_SYS_JFFS2_FIRST_SECTOR is not -used. - -The input is a partition number starting with 0. -Return a pointer to struct part_info or NULL for error; - -Ex jffs2_part_info() for one partition. ---- -#if defined CONFIG_SYS_JFFS_CUSTOM_PART -#include <jffs2/jffs2.h> - -static struct part_info part; - -struct part_info* -jffs2_part_info(int part_num) -{ - if(part_num==0){ - if(part.usr_priv==(void*)1) - return ∂ - - memset(&part, 0, sizeof(part)); - part.offset=(char*)0xFF800000; - part.size=1024*1024*8; - - /* Mark the struct as ready */ - part.usr_priv=(void*)1; - - return ∂ - } - return 0; -} -#endif --- TODO. |