//! \brief Read the ID of the Nand-Flash
//!
//! \param read_id_cmd Read_id command (NF_READ_ID_CMD, NF_READ_ID2_CMD)
//! \param nf_num Nand Flash number
//!
//! \return :
//! MSB0(ret) (MSB) is the Maker Code,
//! MSB1(ret) is the Device Id,
//! MSB2(ret) is 3rd byte returned,
//! MSB3(ret) (LSB) is 4th byte returned.
//!
//! \pre <code>nf_init()</code> should have been called before.
//!
U32 nf_read_id( U8 read_id_cmd, U8 nf_num )
{
U32 ret;
nf_select( nf_num );
nf_wait_busy();
//nf_force_CE();
nf_wr_cmd (read_id_cmd);
nf_wr_addr( 0 );
MSB0(ret)= nf_rd_data(); // Maker Code
MSB1(ret)= nf_rd_data(); // Device Id
MSB2(ret)= nf_rd_data(); // extra
MSB3(ret)= nf_rd_data(); // extra (Multi Plane Support)
//Nfc_action( NFC_ACT_ASSERT_CE, NFC_EXT_NOP);
return ret;
}
void nfc_print_block(U16 block_addr, U8 dev_id)
{
_MEM_TYPE_SLOW_ U32 page_addr=(U32)block_addr*((U8)1<<G_SHIFT_BLOCK_PAGE);
_MEM_TYPE_SLOW_ U16 n_bytes;
_MEM_TYPE_SLOW_ U16 i_byte;
_MEM_TYPE_SLOW_ U8 i_page;
trace("\n\rDisplay block 0x");
trace_hex( MSB(block_addr) );
trace_hex( LSB(block_addr) );
n_bytes= ( Is_nf_512() )
? 512 // 512B page access
: 2048 // 2KB page access
;
nf_select( dev_id );
//for ( i_page=(U8)1<<G_SHIFT_BLOCK_PAGE ; i_page!=0 ; i_page--, page_addr++ )
for( i_page=0 ; i_page<64 ; i_page++, page_addr++ )
{
trace("\n\rOpening page 0x");
trace_hex( MSB0(page_addr) );
trace_hex( MSB1(page_addr) );
trace_hex( MSB2(page_addr) );
trace_hex( MSB3(page_addr) );
#if 0
nf_open_page_read( page_addr, 0 );
for( i_byte=0 ; i_byte<n_bytes ; )
{
if( !(i_byte%32) )
{
trace("\n\r0x");
trace_hex( MSB(i_byte) );
trace_hex( LSB(i_byte) );
trace(" 0x");
}
else if( !(i_byte%16) ) trace(" ");
else if( !(i_byte% 8) ) trace(" ");
trace_hex( nf_rd_data() );
trace_hex( nf_rd_data() );
trace_hex( nf_rd_data() );
trace_hex( nf_rd_data() );
i_byte+=4;
}
#else
nf_open_page_read( page_addr, n_bytes );
#endif
trace("\n\rSpare zone: 0x");
for( i_byte=4*4 ; i_byte!=0 ; i_byte-- )
{ // discard spare zone
if( i_byte%4==0 ) trace_nl();
trace_hex( nf_rd_data() );
trace_hex( nf_rd_data() );
trace_hex( nf_rd_data() );
trace_hex( nf_rd_data() );
}
trace("\n\r");
}
trace("\n\rOther way to access spare zone: 0x");
page_addr=(U32)block_addr*((U8)1<<G_SHIFT_BLOCK_PAGE);
nf_open_page_read( page_addr, NF_SPARE_POS );
i_byte=Nfc_rd_data_fetch_next();
{
for ( i_byte=4*4 ; i_byte!=0 ; i_byte-- )
{ // discard spare zone
trace_hex( Nfc_rd_data_fetch_next() );
trace_hex( Nfc_rd_data_fetch_next() );
trace_hex( Nfc_rd_data_fetch_next() );
trace_hex( Nfc_rd_data_fetch_next() );
}
trace("\n\r");
}
}
/*! \brief Main function.
*/
int main(void)
{
bool valid_block_found[NF_N_DEVICES];
U32 u32_nf_ids, i_dev, i_block;
U8 maker_id, device_id, byte3;
U32 i, time_s, time_e;
U8 data;
// start init
sysclk_init();
// Enable clock for require module
sysclk_enable_hsb_module(SYSCLK_EBI);
sysclk_enable_pbb_module(SYSCLK_SMC_REGS);
sysclk_enable_pbb_module(SYSCLK_HMATRIX);
// Initialize the board.
// The board-specific conf_board.h file contains the configuration of the board
// initialization.
board_init();
init_stdio();
#ifdef NF_ADDON // addon nandflash board for EVK1104 (not mounted by default)
// Unselect NF on board
gpio_set_gpio_pin(AVR32_PIN_PX53);
gpio_set_gpio_pin(AVR32_PIN_PX52);
#endif
nf_init(sysclk_get_cpu_hz());
nf_unprotect();
printf("\x0C");
printf("Nand Flash example.\r\n===================\r\n\r\n");
// - Simple test of the NF communication through the SMC.
// - Find all bad blocks.
// - Find a valid block for the remaining tests.
nf_reset_nands(NF_N_DEVICES);
printf("\tDetecting Nand Flash device(s).\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
// Performs some init here...
valid_block_found[i_dev] = false;
// Test Maker and Device ids
u32_nf_ids = nf_read_id( NF_READ_ID_CMD, i_dev );
maker_id = MSB0(u32_nf_ids);
device_id = MSB1(u32_nf_ids);
byte3 = MSB3(u32_nf_ids);
printf("\t\tNF %ld: [Maker=0x%02x] [Device=0x%02x] [byte3=0x%02x]\r\n", i_dev, maker_id, device_id, byte3);
if( maker_id==M_ID_MICRON )
{
printf("\t\t Micron chip");
if( (device_id==0xDA) && (byte3==0x15) )
printf("- MT29F2G08AACWP device\r\n");
else if( (device_id==0xDA) && (byte3==0x95) )
printf("- MT29F2G08AADWP device\r\n");
else
{
printf("- *** Error: unexpected chip detected. Please check the board settings and hardware.\r\n");
return -1;
}
}
else
{
printf("\t\t *** Error: unexpected chip detected. Please check the board settings and hardware.\r\n");
return -1;
}
}
printf("\r\n\tTesting bad blocks.\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
printf("\t\tNF %ld:\r\n", i_dev);
nf_select(i_dev);
for( i_block=0 ; i_block<G_N_BLOCKS ; i_block++ )
{
nf_open_page_read( nf_block_2_page(i_block), NF_SPARE_POS + G_OFST_BLK_STATUS );
if( (nf_rd_data()!=0xFF) )
{ // The block is bad.
printf("\t\t\tBlock %ld (0x%lx) is bad.\r\n", i_block, i_block);
}
else
{
if( !valid_block_found[i_dev] )
{
valid_block_found[i_dev]= true;
valid_block_addr[i_dev] = i_block;
printf("\t\t\tFirst valid block is at address %ld (0x%lx).\r\n", i_block, i_block);
}
}
}
}
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
if( !valid_block_found[i_dev] )
{
printf("Error %d\r\n", __LINE__);
return 0;
}
// - Ensure good NF behaviour through simple commands.
// Erase, Program, Read
// - Measures NF timings.
printf("\r\n\tMeasuring NF timings.\r\n");
for( i_dev=0 ; i_dev<NF_N_DEVICES ; i_dev++ )
{
printf("\t\tNF %ld:\r\n", i_dev);
nf_select(i_dev);
nf_erase_block( nf_block_2_page(valid_block_addr[0]), false);
time_s = Get_sys_count();
nf_wait_busy();
time_e = Get_sys_count();
// Verify that the block is erased.
nf_open_page_read( nf_block_2_page(valid_block_addr[0]), 0);
for( i= 0; i<2048 ; i++ )
{
data = nf_rd_data();
if( data!=0xFF )
{
printf("\tError: offset %d is not erased (read %d).\r\n", (U8)i, data);
return 0;
}
}
printf("\t\t\tTime to erase a page:%ld cy (%ld us)\r\n", time_e-time_s, cpu_cy_2_us(time_e-time_s, sysclk_get_cpu_hz()));
nf_open_page_write( nf_block_2_page(valid_block_addr[0]), 0);
for( i=0 ; i<2048 ; i++ )
nf_wr_data(i%256);
nf_wr_cmd(NF_PAGE_PROGRAM_CMD);
time_s = Get_sys_count();
nf_wait_busy();
time_e = Get_sys_count();
printf("\t\t\tTime to program a page:%ld cy (%ld us)\r\n", time_e-time_s, cpu_cy_2_us(time_e-time_s, sysclk_get_cpu_hz()));
time_s = Get_sys_count();
nf_open_page_read( nf_block_2_page(valid_block_addr[0]), 0);
time_e = Get_sys_count();
printf("\t\t\tTime to access to a page:%ld cy (%ld us)\r\n", time_e-time_s, cpu_cy_2_us(time_e-time_s, sysclk_get_cpu_hz()));
for( i= 0; i<2048 ; i++ )
{
data = nf_rd_data();
if( data!= i%256)
{
printf("\tError: expect %d, read %d\r\n", (U8)i, data);
return 0;
}
}
}
printf("Example DONE\r\n");
return 0;
}
