Part Number: AM3352
Tool/software: Linux
Hi all
My custom board use Macronix MX30LF1GE8AB nand flash, with 128MiB, SLC, page size = 2048, OOB size = 64
and other nand info:
Page size 2048b
OOB size 64b
Erase size 131072b
subpagesize 512b
options 0x4000000c
bbt options 0x8000
Now I want to upgrade my firmware in user space, so I write code like this:
fd = open("/dev/mtdN", O_RDWR|O_SYNC);
assert(/* open check */);
do{
do_erase(fd, 0x20000); /* erase 128k */
do{
wlen = write(fd, buf+offser, 1k);
fsync(fd);
}while(/* run 128 times */);
}while(/* all firmware size */);
but when write 126times the nand flash write say only 1 byte data wire in,
but my code says 1k byte data was in,
the log show like this:
User space: the wlen return 1024byte
driver: nand driver ops: nand_write 1 byte nand: attempt to write non page aligned data
the user_space write return 1k, but driver show only 1byte data write in
my rootfs format is ubifs, so I use fsync() to sync it!
help me~plz
