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Basic code for mk20dx256vlh7 flashing

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This commit is contained in:
Jacob Alexander 2015-05-25 17:23:18 -07:00
parent 1acbc97e98
commit 02b919a4cb
8 changed files with 158 additions and 90 deletions
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83
Bootloader/flash.c
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@ -31,7 +31,7 @@ uint32_t flash_ALLOW_BRICKABLE_ADDRESSES;
/* This will have to live in SRAM. */
__attribute__((section(".ramtext.ftfl_submit_cmd"), long_call))
int ftfl_submit_cmd(void)
int ftfl_submit_cmd()
{
FTFL.fstat.raw = ((struct FTFL_FSTAT_t){
.ccif = 1,
@ -49,10 +49,11 @@ int ftfl_submit_cmd(void)
//return (!!stat.mgstat0);
}
int flash_prepare_flashing(void)
int flash_prepare_flashing()
{
/* switch to FlexRAM */
if (!FTFL.fcnfg.ramrdy) {
if ( !FTFL.fcnfg.ramrdy )
{
FTFL.fccob.set_flexram.fcmd = FTFL_FCMD_SET_FLEXRAM;
FTFL.fccob.set_flexram.flexram_function = FTFL_FLEXRAM_RAM;
return (ftfl_submit_cmd());
@ -60,17 +61,27 @@ int flash_prepare_flashing(void)
return (0);
}
int flash_erase_sector(uintptr_t addr)
int flash_read_1s_sector( uintptr_t addr, size_t num )
{
if (addr < (uintptr_t)&_app_rom &&
flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420)
FTFL.fccob.read_1s_section.fcmd = FTFL_FCMD_READ_1s_SECTION;
FTFL.fccob.read_1s_section.addr = addr;
FTFL.fccob.read_1s_section.margin = FTFL_MARGIN_NORMAL;
FTFL.fccob.read_1s_section.num_words = num;
return ftfl_submit_cmd();
}
int flash_erase_sector( uintptr_t addr )
{
if ( addr < (uintptr_t)&_app_rom && flash_ALLOW_BRICKABLE_ADDRESSES != 0x00023420 )
return (-1);
FTFL.fccob.erase.fcmd = FTFL_FCMD_ERASE_SECTOR;
FTFL.fccob.erase.addr = addr;
return (ftfl_submit_cmd());
return ftfl_submit_cmd();
}
int flash_program_section_longwords(uintptr_t addr, size_t num_words)
int flash_program_section_longwords( uintptr_t addr, size_t num_words )
{
FTFL.fccob.program_section.fcmd = FTFL_FCMD_PROGRAM_SECTION;
FTFL.fccob.program_section.addr = addr;
@ -79,7 +90,7 @@ int flash_program_section_longwords(uintptr_t addr, size_t num_words)
return ftfl_submit_cmd();
}
int flash_program_section_phrases(uintptr_t addr, size_t num_phrases)
int flash_program_section_phrases( uintptr_t addr, size_t num_phrases )
{
FTFL.fccob.program_section.fcmd = FTFL_FCMD_PROGRAM_SECTION;
FTFL.fccob.program_section.addr = addr;
@ -88,53 +99,43 @@ int flash_program_section_phrases(uintptr_t addr, size_t num_phrases)
return ftfl_submit_cmd();
}
int flash_program_longword(uintptr_t addr, uint8_t *data)
{
FTFL.fccob.program_longword.fcmd = FTFL_FCMD_PROGRAM_LONGWORD;
FTFL.fccob.program_longword.addr = addr;
FTFL.fccob.program_longword.data_be[0] = data[0];
FTFL.fccob.program_longword.data_be[1] = data[1];
FTFL.fccob.program_longword.data_be[2] = data[2];
FTFL.fccob.program_longword.data_be[3] = data[3];
return ftfl_submit_cmd();
}
int flash_program_sector(uintptr_t addr, size_t len)
int flash_program_sector( uintptr_t addr, size_t len )
{
#if defined(_mk20dx128vlf5_)
return (len != FLASH_SECTOR_SIZE ||
(addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
flash_erase_sector(addr) ||
flash_program_section_longwords(addr, FLASH_SECTOR_SIZE / 4));
return (len != FLASH_SECTOR_SIZE
|| (addr & (FLASH_SECTOR_SIZE - 1)) != 0
|| flash_erase_sector( addr )
|| flash_program_section_longwords( addr, FLASH_SECTOR_SIZE / 4 ));
#elif defined(_mk20dx256vlh7_)
/*
return (len != FLASH_SECTOR_SIZE ||
(addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
flash_erase_sector(addr) ||
flash_program_section_phrases(addr, FLASH_SECTOR_SIZE / 8));
*/
return (len != FLASH_SECTOR_SIZE ||
(addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
flash_erase_sector(addr) ||
flash_program_section_phrases(addr, FLASH_SECTOR_SIZE / 8));
if ( len != FLASH_SECTOR_SIZE )
return 1;
// Check if beginning of sector and erase if not empty
// Each sector is 2 kB in length, but we can only write to half a sector at a time
// We can only erase an entire sector at a time
if ( (addr & (FLASH_SECTOR_SIZE - 1)) == 0
&& flash_read_1s_sector( addr, FLASH_SECTOR_SIZE / 8 )
&& flash_erase_sector( addr ) )
return 1;
// Program half-sector
return flash_program_section_phrases( addr, FLASH_SECTOR_SIZE / 16 );
#endif
}
int flash_prepare_reading(void)
int flash_prepare_reading()
{
return (0);
}
int flash_read_sector(uintptr_t addr, size_t len)
int flash_read_sector( uintptr_t addr, size_t len )
{
return (0);
}
void *flash_get_staging_area(uintptr_t addr, size_t len)
void *flash_get_staging_area( uintptr_t addr, size_t len )
{
if ((addr & (FLASH_SECTOR_SIZE - 1)) != 0 ||
len != FLASH_SECTOR_SIZE)
if ( (addr & (FLASH_SECTOR_SIZE - 1)) != 0 || len != FLASH_SECTOR_SIZE )
return (NULL);
return (FlexRAM);
}