int main()
{
copy_vec();
irq_init();
button_init();
uart0_init();
timer_init();
// timer4_init();
lcd_init();
lcd_clean(0xffff);
adc_ts_init();
ts_init();
// tslib_calibrate();
// lcd_clean(0xffff);
nand_init();
#if 1
nand_read_id();
while(1);
#endif
printf("\r\n\n");
printf("===============================================\r\n");
printf(" NAND FLASH PROGRAMMING \r\n");
unsigned int size = 512 * 1024; // 512KB
nand_read_id();
printf("erase entire flash, waiting ... \r\n");
int i;
for(i = 0; i < 2048; i++)
nand_erase_block(i);
printf("start program ... \r\n");
nand_write_bytes(0x0, (unsigned char *)0x31000000, size);
printf("program end ... \r\n");
printf("===============================================\r\n");
while(1);
return 0;
}
int mymain()
{
unsigned char c = 68;
//clock_init();
uart_init();
// 初始化nandflash
nand_init();
while (1)
{
printf("\r\n********Nandflash R/W Test*******\r\n");
printf("[i] Read ID\r\n");
printf("[e] Erase Nandflash\r\n");
printf("[w] Write Nandflash\r\n");
printf("[r] Read Nandflash\r\n");
printf("[n] read sdram to nand\r\n");
printf("Enter your choice: ");
c = getc();
printf("%c\r\n",c);
switch(c)
{
case 'i':
nand_read_id();
break;
case 'e':
erase_test();
break;
case 'w':
write_test();
break;
case 'r':
read_test();
break;
case 'n':
sdram_to_nand_test();
break;
}
}
return 0;
}
void nand_mtd_init()
{
/* initialize mutex */
if (rt_mutex_init(&nand, "nand", RT_IPC_FLAG_FIFO) != RT_EOK)
{
rt_kprintf("init nand lock mutex failed\n");
}
nand_part[0].page_size = PAGE_DATA_SIZE;
nand_part[0].pages_per_block = 32;//don't caculate oob size
nand_part[0].block_start = 0;
nand_part[0].block_end = 123;
nand_part[0].oob_size = 16;
nand_part[0].ops = &nand_mtd_ops;
rt_mtd_nand_register_device("psram0", &nand_part[0]);
nand_read_id(RT_NULL);
}
int mymain(void)
{
int argc = 0;
char * argv[10];
int i = 0;
led_init();
uart_init();
nand_init();
nand_read_id(buf);
putchar_hex(buf[0]);
putchar_hex(buf[1]);
putchar_hex(buf[2]);
putchar_hex(buf[3]);
putchar_hex(buf[4]);
printf("\n\n" __DATE__ " " __TIME__ "\n");
printf("welcome to my boot v1.0 \n\n");
//printf("test: %c,%s,%d,%x\n", 'A', "abcdef", 11, 0x23);
while (1)
{
printf("LUMIT $ ");
gets(buf);
printf("your input: <%s>\n", buf);
argc = shell_parse(buf, argv);
for (i = 0; i < argc; i++)
printf("%d: <%s>\n", i, argv[i]);
command_do(argc, argv);
}
}
void nand_id(void)
{
nand_read_id(NULL);
}
void cmd_nid(void){
nand_read_id();
}
static void nand_get_chip_info(void)
{
unsigned char manuf_id;
unsigned char id_buf[8];
/* Read chip id from bank 0 */
nand_read_id(0, id_buf);
manuf_id = id_buf[0];
/* Identify the chip geometry */
nand_data = nand_identify(id_buf);
if (nand_data == NULL)
{
panicf("Unknown NAND: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x",
id_buf[0],id_buf[1],id_buf[2],id_buf[3],id_buf[4]);
}
pages_per_bank = nand_data->blocks_per_bank * nand_data->pages_per_block;
segments_per_bank = nand_data->blocks_per_bank / nand_data->planes;
bytes_per_segment = nand_data->page_size * nand_data->pages_per_block
* nand_data->planes;
sectors_per_page = nand_data->page_size / SECTOR_SIZE;
sectors_per_segment = bytes_per_segment / SECTOR_SIZE;
pages_per_segment = sectors_per_segment / sectors_per_page;
/* Establish how many banks are present */
nand_read_id(1, id_buf);
if (id_buf[0] == manuf_id)
{
/* Bank 1 is populated, now check if banks 2/3 are valid */
nand_read_id(2, id_buf);
if (id_buf[0] == manuf_id)
{
/* Bank 2 returned matching id - check if 2/3 are shadowing 0/1 */
unsigned int uid_buf0[8];
unsigned int uid_buf2[8];
nand_read_uid(0, uid_buf0);
nand_read_uid(2, uid_buf2);
if (memcmp(uid_buf0, uid_buf2, 32) == 0)
{
/* UIDs match, assume banks 2/3 are shadowing 0/1 */
total_banks = 2;
}
else
{
/* UIDs differ, assume banks 2/3 are valid */
total_banks = 4;
}
}
else
{
/* Bank 2 returned differing id - assume 2/3 are junk */
total_banks = 2;
}
}
else
{
/* Bank 1 returned differing id - assume it is junk */
total_banks = 1;
}
/*
Sanity checks:
1. "BMP" tag at block 0, page 0, offset <page_size> [always present]
2. On most D2s, <page_size>+3 is 'M' and <page_size>+4 is no. of banks.
This is not present on some older players (formatted with early FW?)
*/
nand_read_raw(0, 0, /* bank, page */
nand_data->page_size, /* offset */
8, id_buf); /* length, dest */
if (strncmp(id_buf, "BMP", 3)) panicf("BMP tag not present");
if (id_buf[3] == 'M')
{
if (id_buf[4] != total_banks) panicf("BMPM total_banks mismatch");
}
}