rom_test.c

uboot底层驱动

#include "my_printf.h"
#include "erase_copy.h"
#define		ERASEBLOCKSIZE		0x2000
#define addr_base 0x20000000



int ERRl = 0;

int adrrl_test(int addr_start, int addr_end)
{
	int i = 0;
	int k;
	
	int count = (addr_end-addr_start+1) / ERASEBLOCKSIZE + 1; 
	
	k =  (addr_start-addr_base) / ERASEBLOCKSIZE;
	for (; i < count; i++)
	{
		
		NorFlash_unlock(addr_base + (k+i)*ERASEBLOCKSIZE);
		NorFlash_bolckerase(addr_base + (k+i)*ERASEBLOCKSIZE);
	}
  for (i = 0; i<(addr_end-addr_start); i++, i++)
		 NorFlash_write(addr_start+i, i);
	for (i=0; i<(addr_end-addr_start); i++,i++)
		if ( i != NorFlash_read(addr_start + i) )
		{
			my_printf("addr bus error\n\r");
			ERRl = 1;
			return 1;
		}
	ERRl = 0;
}
	

int flash_test(int addr_start, int addr_end)
{
	int i = 0;
	int j = -1;
	int erase_count;
	//do {
	for (; i < (addr_end-addr_start); )
	{
		if ( (erase_count = (addr_start+i-addr_base) / ERASEBLOCKSIZE) > j)
		{
			j = erase_count;
			NorFlash_unlock(addr_base + erase_count*ERASEBLOCKSIZE);
			NorFlash_bolckerase(addr_base + erase_count*ERASEBLOCKSIZE);
			//my_printf("erase ok once time\n\r");
 		}
 		
		NorFlash_write(addr_start+i, 0x5555);
		NorFlash_write(addr_start+i+2, 0xaaaa);
		if ( (NorFlash_read(addr_start+i) != 0x5555) || (NorFlash_read(addr_start+i+2) != 0xaaaa)  )
		{
			/*if ( NorFlash_read(addr_base+i) == 0xffff )
			{
				addr_test(addr_base, i+1+1);
				if ( 1== ERR )
					return 1;
				my_printf("sdram 0x%x\r\n", i+1+1);	
				return 0;
			}
			else*/
				ERRl = 1;
		}

		if ( 1==ERRl ) 
		{
			my_printf("sdram or data bus error\r\n");
			return 1;
		}
		i++;
		i++;
		i++;
		i++;
	}
	
	 i = 0;
	 j = -1;
	
	//do {
	for (; i < (addr_end-addr_start); )
	{
		if ( (erase_count = (addr_start+i-addr_base) / ERASEBLOCKSIZE) > j)
		{
			j = erase_count;
			NorFlash_unlock(addr_base + erase_count*ERASEBLOCKSIZE);
			NorFlash_bolckerase(addr_base + erase_count*ERASEBLOCKSIZE);
			//my_printf("erase ok once time\n\r");
 		}
		NorFlash_write(addr_start+i, 0xaaaa);
		NorFlash_write(addr_start+i+2, 0x5555);
		if ( (NorFlash_read(addr_start+i) != 0xaaaa) || (NorFlash_read(addr_start+i+2) != 0x5555) )
			ERRl = 1;

		if ( 1==ERRl ) 
		{
			my_printf("sdram or data bus error\r\n");
			return 1;
		}
		i++;
		i++;
		i++;
		i++;
	}

	//adrrl_test(addr_start, addr_end);
	if ( 0==ERRl )
			my_printf("flash test ok!\n\r");
	
		
	//} while (1);
}