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fix usbboot skips empty pages during write

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This commit is contained in:
Lars-Peter Clausen 2009-09-17 10:22:28 +08:00 committed by Xiangfu Liu
parent 5efe423426
commit 3e030a84f8
1 changed files with 15 additions and 12 deletions
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19
usbboot/xburst_stage2/nandflash_4740.c
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@ -541,11 +541,17 @@ u32 nand_read_4740(void *buf, u32 startpage, u32 pagecount, int option)
u32 nand_program_4740(void *context, int spage, int pages, int option)
{
size_t datasize;
u32 i, j, cur, rowaddr;
u8 *tmpbuf;
u32 ecccnt,oobsize_sav,ecccnt_sav,eccpos_sav;
u8 ecc_buf[256];
datasize = pagesize;
if (option != NO_OOB)
datasize += oobsize;
if (wp_pin)
__gpio_set_pin(wp_pin);
restart:
@ -581,20 +587,17 @@ restart:
}
}
//if NO_OOB do not perform vaild check!
if ( option != NO_OOB ) {
for ( j = 0 ; j < pagesize + oobsize; j ++) {
for (j = 0; j < datasize; ++j) {
if (tmpbuf[j] != 0xff)
break;
}
if ( j == oobsize + pagesize ) {
tmpbuf += ( pagesize + oobsize ) ;
i ++;
cur ++;
if (j == datasize) {
tmpbuf += datasize;
++i;
++cur;
continue;
}
}
if (pagesize == 512)
__nand_cmd(CMD_READA);