int epcs_write(int addr, int len, u8 *buf)
{
int sector, page;
for(sector=0; sector<len; sector+=4096){
epcs_sector_erase(addr+sector);
for(page=0; page<4096; page+=256){
epcs_page_write(addr+sector+page, buf+sector+page);
}
}
return 0;
}
/*
*
* Erase the selected erase block ("sector erase", from the POV
* of the EPCS data sheet).
*/
int alt_epcs_flash_erase_block(alt_flash_dev* flash_info, int block_offset)
{
int ret_code = 0;
alt_flash_epcs_dev *f = (alt_flash_epcs_dev*)flash_info;
ret_code = alt_epcs_test_address(flash_info, block_offset);
if (ret_code >= 0)
{
/* Send the Sector Erase command, whose 3 address bytes are anywhere
* within the chosen sector.
*/
epcs_sector_erase(f->register_base, block_offset, f->four_bytes_mode);
}
return ret_code;
}
/*
*
* Erase the selected erase block ("sector erase", from the POV
* of the EPCS data sheet).
*/
int alt_epcs_flash_erase_block(alt_flash_dev* flash_info, int block_offset)
{
int ret_code = 0;
alt_flash_epcs_dev *f = (alt_flash_epcs_dev*)flash_info;
ret_code = alt_epcs_test_address(flash_info, block_offset);
if (ret_code >= 0)
{
/* Execute a WREN instruction */
epcs_write_enable(f->register_base);
/* Send the Sector Erase command, whose 3 address bytes are anywhere
* within the chosen sector.
*/
epcs_sector_erase(f->register_base, block_offset);
}
return ret_code;
}
