unsigned long flash_init(void){
flash_info_t *info;
#if defined(PLL_IN_FLASH_MAGIC_OFFSET)
u32 pll_magic, spi_control;
pll_magic = ar7240_reg_rd(CFG_FLASH_BASE + PLL_IN_FLASH_DATA_BLOCK_OFFSET + PLL_IN_FLASH_MAGIC_OFFSET);
// read SPI CONTROL Configuration register (SPI_CONTROL) value stored in FLASH (PLL_IN_FLASH_MAGIC_OFFSET + 12)
spi_control = ar7240_reg_rd(CFG_FLASH_BASE + PLL_IN_FLASH_DATA_BLOCK_OFFSET + PLL_IN_FLASH_MAGIC_OFFSET + 12);
#endif
info = &flash_info[0];
// spi flash clock
ar7240_reg_wr(AR7240_SPI_FS, 0x01);
// if reset button is pressed -> write default CLOCK_DIVIDER for SPI CLOCK
if(reset_button_status()){
ar7240_reg_wr(AR7240_SPI_CLOCK, AR7240_SPI_CONTROL_DEFAULT);
} else {
#if defined(PLL_IN_FLASH_MAGIC_OFFSET)
// do we have PLL_MAGIC in FLASH?
if(pll_magic == PLL_IN_FLASH_MAGIC){
ar7240_reg_wr(AR7240_SPI_CLOCK, spi_control);
} else {
#endif
ar7240_reg_wr(AR7240_SPI_CLOCK, AR7240_SPI_CONTROL);
#if defined(PLL_IN_FLASH_MAGIC_OFFSET)
}
#endif
}
ar7240_reg_wr(AR7240_SPI_FS, 0x0);
// get flash id
info->flash_id = read_id();
puts("FLASH: ");
// fill flash info based on JEDEC ID
switch(info->flash_id){
/*
* 4M flash chips
*/
case 0x010215: // tested
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Spansion S25FL032P (4 MB)");
break;
case 0x1F4700:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Atmel AT25DF321 (4 MB)");
break;
case 0x1C3016: // tested
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("EON EN25Q32 (4 MB)");
break;
case 0x202016:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Micron M25P32 (4 MB)");
break;
case 0xEF4016:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Winbond W25Q32 (4 MB)");
break;
case 0xC22016:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Macronix MX25L320 (4 MB)");
break;
/*
* 8M flash chips
*/
case 0x010216:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Spansion S25FL064P (8 MB)");
break;
case 0x1F4800:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Atmel AT25DF641 (8 MB)");
break;
case 0x1C3017: // tested
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("EON EN25Q64 (8 MB)");
break;
case 0x202017:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Micron M25P64 (8 MB)");
break;
case 0xEF4017: // tested
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Winbond W25Q64 (8 MB)");
break;
case 0xC22017: // tested
case 0xC22617:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Macronix MX25L64 (8 MB)");
break;
case 0xBF254B:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("SST 25VF064C (8 MB)");
break;
/*
* 16M flash chips
*/
case 0xEF4018: // tested
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Winbond W25Q128 (16 MB)");
break;
case 0xC22018:
case 0xC22618:
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Macronix MX25L128 (16 MB)");
break;
case 0x012018:
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Spansion S25FL127S (16 MB)");
break;
case 0x20BA18:
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Micron N25Q128 (16 MB)");
break;
/*
* Unknown flash
*/
default:
#if (DEFAULT_FLASH_SIZE_IN_MB == 4)
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Unknown type (using only 4 MB)\n");
#elif (DEFAULT_FLASH_SIZE_IN_MB == 8)
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Unknown type (using only 8 MB)\n");
#elif (DEFAULT_FLASH_SIZE_IN_MB == 16)
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Unknown type (using only 16 MB)\n");
#endif
printf("\nPlease, send request to add support\nfor your flash - JEDEC ID: 0x%06lX\n", info->flash_id);
info->flash_id = FLASH_CUSTOM;
break;
}
puts("\n");
return(info->size);
}
unsigned long flash_init(void) {
flash_info_t *info;
info = &flash_info[0];
// spi flash clock
ar7240_reg_wr(AR7240_SPI_FS, 0x01);
ar7240_reg_wr(AR7240_SPI_CLOCK, AR7240_SPI_CONTROL);
ar7240_reg_wr(AR7240_SPI_FS, 0x0);
// get flash id
info->flash_id = read_id();
puts("FLASH: ");
// fill flash info based on JEDEC ID
switch (info->flash_id) {
/*
* 4M flash chips
*/
case 0x010215: // tested
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Spansion S25FL032P (4 MB)");
break;
case 0x1F4700:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Atmel AT25DF321 (4 MB)");
break;
case 0x1C3016: // tested
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("EON EN25Q32 (4 MB)");
break;
case 0x202016:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Micron M25P32 (4 MB)");
break;
case 0xEF4016:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Winbond W25Q32 (4 MB)");
break;
case 0xC22016:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Macronix MX25L320 (4 MB)");
break;
/*
* 8M flash chips
*/
case 0x010216:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Spansion S25FL064P (8 MB)");
break;
case 0x1F4800:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Atmel AT25DF641 (8 MB)");
break;
case 0x1C3017: // tested
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("EON EN25Q64 (8 MB)");
break;
case 0x202017:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Micron M25P64 (8 MB)");
break;
case 0xEF4017: // tested
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Winbond W25Q64 (8 MB)");
break;
case 0xC22017: // tested
case 0xC22617:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("Macronix MX25L64 (8 MB)");
break;
case 0xBF254B:
flash_set_geom(SIZE_INBYTES_8MBYTES, 128, SIZE_INBYTES_64KBYTES);
puts("SST 25VF064C (8 MB)");
break;
/*
* 16M flash chips
*/
case 0xEF4018: // tested
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Winbond W25Q128 (16 MB)");
break;
case 0xC22018:
case 0xC22618:
flash_set_geom(SIZE_INBYTES_16MBYTES, 256, SIZE_INBYTES_64KBYTES);
puts("Macronix MX25L128 (16 MB)");
break;
/*
* Unknown flash -> set 4M with 64 KiB erase block
*/
default:
flash_set_geom(SIZE_INBYTES_4MBYTES, 64, SIZE_INBYTES_64KBYTES);
puts("Unknown type (using only 4 MB)\n");
printf("\nPlease, send request to add support\nfor your flash - JEDEC ID: 0x%06lX", info->flash_id);
info->flash_id = FLASH_M25P64;
break;
}
return (info->size);
}
