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bios: add sdrrderr

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This commit is contained in:
Sebastien Bourdeauducq 2014-09-01 15:23:37 +08:00
parent 57335bdf3f
commit 6decb357f1
3 changed files with 47 additions and 0 deletions
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1
software/bios/main.c
View file

@ -380,6 +380,7 @@ static void do_command(char *c)
else if(strcmp(token, "sdrhw") == 0) sdrhw();
else if(strcmp(token, "sdrrdbuf") == 0) sdrrdbuf(-1);
else if(strcmp(token, "sdrrd") == 0) sdrrd(get_token(&c), get_token(&c));
else if(strcmp(token, "sdrrderr") == 0) sdrrderr(get_token(&c));
else if(strcmp(token, "sdrwr") == 0) sdrwr(get_token(&c));
else if(strcmp(token, "memtest") == 0) memtest();
else if(strcmp(token, "sdrinit") == 0) sdrinit();

45
software/bios/sdram.c
View file

@ -112,6 +112,51 @@ void sdrrd(char *startaddr, char *dq)
sdrrdbuf(_dq);
}
void sdrrderr(char *count)
{
char *c;
int _count;
int i, j, p;
unsigned char prev_data[DFII_NPHASES*DFII_PIX_RDDATA_SIZE];
unsigned char errs[DFII_PIX_RDDATA_SIZE/2];
if(*count == 0) {
printf("sdrrderr <count>\n");
return;
}
_count = strtoul(count, &c, 0);
if(*c != 0) {
printf("incorrect count\n");
return;
}
dfii_pird_address_write(0);
dfii_pird_baddress_write(0);
command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
cdelay(15);
for(p=0;p<DFII_NPHASES;p++)
for(i=0;i<DFII_PIX_RDDATA_SIZE;i++)
prev_data[p*DFII_PIX_RDDATA_SIZE+i] = MMPTR(dfii_pix_rddata_addr[p]+4*i);
for(i=0;i<DFII_PIX_RDDATA_SIZE/2;i++)
errs[i] = 0;
for(j=0;j<_count;j++) {
command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
cdelay(15);
for(p=0;p<DFII_NPHASES;p++)
for(i=0;i<DFII_PIX_RDDATA_SIZE;i++) {
unsigned char new_data;
new_data = MMPTR(dfii_pix_rddata_addr[p]+4*i);
errs[i%(DFII_PIX_RDDATA_SIZE/2)] |= prev_data[p*DFII_PIX_RDDATA_SIZE+i] ^ new_data;
prev_data[p*DFII_PIX_RDDATA_SIZE+i] = new_data;
}
}
for(i=0;i<DFII_PIX_RDDATA_SIZE/2;i++)
printf("%02x ", errs[i]);
printf("\n");
}
void sdrwr(char *startaddr)
{
char *c;

1
software/bios/sdram.h
View file

@ -6,6 +6,7 @@ void sdrhw(void);
void sdrrow(char *_row);
void sdrrdbuf(int dq);
void sdrrd(char *startaddr, char *dq);
void sdrrderr(char *count);
void sdrwr(char *startaddr);
int memtest_silent(void);
int memtest(void);