static int
flash_program_section(uintptr_t addr, size_t len)
{
*(volatile uint32_t *)&FTFL_FCCOB3 = addr; /* this overwrites B0 */
FTFL_FCCOB0 = FTFL_FCMD_PROGRAM_SECTION;
*(volatile uint16_t *)&FTFL_FCCOB5 = len / FLASH_ELEM_SIZE;
return (ftfl_submit_cmd());
}
static int
flash_erase_sector(uintptr_t addr)
{
if (addr < (uintptr_t)&_app_rom &&
flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420)
return (-1);
*(volatile uint32_t *)&FTFL_FCCOB3 = addr; /* this overwrites B0 */
FTFL_FCCOB0 = FTFL_FCMD_ERASE_SECTOR;
return (ftfl_submit_cmd());
}
int
flash_prepare_flashing(void)
{
/* switch to FlexRAM_BASE_PTR */
if (!bf_get_reg(FTFL_FCNFG, FTFL_FCNFG_RAMRDY)) {
FTFL_FCCOB0 = FTFL_FCMD_SET_FLEXRAM;
FTFL_FCCOB1 = FTFL_FLEXRAM_RAM;
return (ftfl_submit_cmd());
}
return (0);
}
static int
flash_program_section(uintptr_t addr, size_t len)
{
FTFE_FCCOB0 = FTFE_FCMD_PROGRAM_SECTION;
FTFE_FCCOB1 = addr >> 16;
FTFE_FCCOB2 = addr >> 8;
FTFE_FCCOB3 = addr;
FTFE_FCCOB4 = (len / FLASH_ELEM_SIZE) >> 8;
FTFE_FCCOB5 = (len / FLASH_ELEM_SIZE);
return (ftfl_submit_cmd());
}
static int
flash_erase_sector(uintptr_t addr)
{
if (addr < (uintptr_t)&_app_rom &&
flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420)
return (-1);
FTFE_FCCOB0 = FTFE_FCMD_ERASE_SECTOR;
FTFE_FCCOB1 = addr >> 16;
FTFE_FCCOB2 = addr >> 8;
FTFE_FCCOB3 = addr;
return (ftfl_submit_cmd());
}
int sector_print( void* buf, size_t sector, size_t chunks )
{
uint8_t* start = (uint8_t*)buf + sector * USB_DFU_TRANSFER_SIZE;
uint8_t* end = (uint8_t*)buf + (sector + 1) * USB_DFU_TRANSFER_SIZE;
uint8_t* pos = start;
// Verify if sector erased
FTFL.fccob.read_1s_section.fcmd = FTFL_FCMD_READ_1s_SECTION;
FTFL.fccob.read_1s_section.addr = (uintptr_t)start;
FTFL.fccob.read_1s_section.margin = FTFL_MARGIN_NORMAL;
FTFL.fccob.read_1s_section.num_words = 250; // 2000 kB / 64 bits
int retval = ftfl_submit_cmd();
#ifdef FLASH_DEBUG
print( NL );
print("Block ");
printHex( sector );
print(" ");
printHex( (size_t)start );
print(" -> ");
printHex( (size_t)end );
print(" Erased: ");
printHex( retval );
print( NL );
#endif
// Display sector
for ( size_t line = 0; pos < end - 24; line++ )
{
// Each Line
printHex_op( (size_t)pos, 4 );
print(": ");
// Each 2 byte chunk
for ( size_t chunk = 0; chunk < chunks; chunk++ )
{
// Print out the two bytes (second one first)
printHex_op( *(pos + 1), 2 );
printHex_op( *pos, 2 );
print(" ");
pos += 2;
}
print( NL );
}
return retval;
}
