Ejemplo n.º 1
0
void ddrrd(char *startaddr)
{
	char *c;
	unsigned int addr;
	int i;

	if(*startaddr == 0) {
		printf("ddrrd <address>\n");
		return;
	}
	addr = strtoul(startaddr, &c, 0);
	if(*c != 0) {
		printf("incorrect address\n");
		return;
	}
	
	dfii_pi0_address_write(addr);
	dfii_pi0_baddress_write(0);
	command_p0(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
	cdelay(15);
	
	for(i=0;i<8;i++)
		printf("%02x", MMPTR(0xe0000834+4*i));
	for(i=0;i<8;i++)
		printf("%02x", MMPTR(0xe0000884+4*i));
	printf("\n");
}
Ejemplo n.º 2
0
void ddrwr(char *startaddr)
{
	char *c;
	unsigned int addr;
	int i;

	if(*startaddr == 0) {
		printf("ddrrd <address>\n");
		return;
	}
	addr = strtoul(startaddr, &c, 0);
	if(*c != 0) {
		printf("incorrect address\n");
		return;
	}
	
	for(i=0;i<8;i++) {
		MMPTR(0xe0000814+4*i) = i;
		MMPTR(0xe0000864+4*i) = 0xf0 + i;
	}
	
	dfii_pi1_address_write(addr);
	dfii_pi1_baddress_write(0);
	command_p1(DFII_COMMAND_CAS|DFII_COMMAND_WE|DFII_COMMAND_CS|DFII_COMMAND_WRDATA);
}
Ejemplo n.º 3
0
static void edid_set_mode(const struct video_timing *mode)
{
	unsigned char edid[128];
	int i;

	generate_edid(&edid, "OHW", "TV", 2015, "HDMI2USB 1", mode);
	for(i=0;i<sizeof(edid);i++)
		MMPTR(CSR_HDMI_IN0_EDID_MEM_BASE+4*i) = edid[i];
	generate_edid(&edid, "OHW", "TV", 2015, "HDMI2USB 2", mode);
	for(i=0;i<sizeof(edid);i++)
		MMPTR(CSR_HDMI_IN1_EDID_MEM_BASE+4*i) = edid[i];
}
Ejemplo n.º 4
0
void sdrrderr(char *count)
{
	int addr;
	char *c;
	int _count;
	int i, j, p;
	unsigned char prev_data[DFII_NPHASES*DFII_PIX_DATA_SIZE];
	unsigned char errs[DFII_NPHASES*DFII_PIX_DATA_SIZE];

	if(*count == 0) {
		printf("sdrrderr <count>\n");
		return;
	}
	_count = strtoul(count, &c, 0);
	if(*c != 0) {
		printf("incorrect count\n");
		return;
	}

	for(i=0;i<DFII_NPHASES*DFII_PIX_DATA_SIZE;i++)
			errs[i] = 0;
	for(addr=0;addr<16;addr++) {
		sdram_dfii_pird_address_write(addr*8);
		sdram_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_DATA_SIZE;i++)
				prev_data[p*DFII_PIX_DATA_SIZE+i] = MMPTR(sdram_dfii_pix_rddata_addr[p]+4*i);

		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_DATA_SIZE;i++) {
					unsigned char new_data;

					new_data = MMPTR(sdram_dfii_pix_rddata_addr[p]+4*i);
					errs[p*DFII_PIX_DATA_SIZE+i] |= prev_data[p*DFII_PIX_DATA_SIZE+i] ^ new_data;
					prev_data[p*DFII_PIX_DATA_SIZE+i] = new_data;
				}
		}
	}

	for(i=0;i<DFII_NPHASES*DFII_PIX_DATA_SIZE;i++)
		printf("%02x", errs[i]);
	printf("\n");
	for(p=0;p<DFII_NPHASES;p++)
		for(i=0;i<DFII_PIX_DATA_SIZE;i++)
			printf("%2x", DFII_PIX_DATA_SIZE/2 - 1 - (i % (DFII_PIX_DATA_SIZE/2)));
	printf("\n");
}
Ejemplo n.º 5
0
Archivo: id.c Proyecto: mithro/litex
void get_ident(char *ident)
{
#ifdef CSR_IDENTIFIER_MEM_BASE
    int len, i;
    
    len = MMPTR(CSR_IDENTIFIER_MEM_BASE);
    for(i=0;i<len;i++)
        ident[i] = MMPTR(CSR_IDENTIFIER_MEM_BASE + 4*i);
    ident[i] = 0;
#else
    ident[0] = 0;
#endif
}
Ejemplo n.º 6
0
void sdrwr(char *startaddr)
{
	char *c;
	unsigned int addr;
	int i;
	int p;

	if(*startaddr == 0) {
		printf("sdrrd <address>\n");
		return;
	}
	addr = strtoul(startaddr, &c, 0);
	if(*c != 0) {
		printf("incorrect address\n");
		return;
	}

	for(p=0;p<DFII_NPHASES;p++)
		for(i=0;i<DFII_PIX_DATA_SIZE;i++)
			MMPTR(sdram_dfii_pix_wrdata_addr[p]+4*i) = 0x10*p + i;

	sdram_dfii_piwr_address_write(addr);
	sdram_dfii_piwr_baddress_write(0);
	command_pwr(DFII_COMMAND_CAS|DFII_COMMAND_WE|DFII_COMMAND_CS|DFII_COMMAND_WRDATA);
}
Ejemplo n.º 7
0
void sdrrdbuf(int dq)
{
	int i, p;
	int first_byte, step;

	if(dq < 0) {
		first_byte = 0;
		step = 1;
	} else {
		first_byte = DFII_PIX_DATA_SIZE/2 - 1 - dq;
		step = DFII_PIX_DATA_SIZE/2;
	}

	for(p=0;p<DFII_NPHASES;p++)
		for(i=first_byte;i<DFII_PIX_DATA_SIZE;i+=step)
			printf("%02x", MMPTR(sdram_dfii_pix_rddata_addr[p]+4*i));
	printf("\n");
}
Ejemplo n.º 8
0
unsigned int encoder_read_reg(unsigned int adr) {
		return MMPTR(ENCODER_BASE+adr);
}
Ejemplo n.º 9
0
void encoder_write_reg(unsigned int adr, unsigned int value) {
		MMPTR(ENCODER_BASE+adr) = value;
}
Ejemplo n.º 10
0
static void read_delays(void)
{
	unsigned int prv;
	unsigned char prs[DFII_NPHASES*DFII_PIX_DATA_SIZE];
	int p, i, j;
	int working;
	int delay, delay_min, delay_max;

	printf("Read delays: ");

	/* Generate pseudo-random sequence */
	prv = 42;
	for(i=0;i<DFII_NPHASES*DFII_PIX_DATA_SIZE;i++) {
		prv = 1664525*prv + 1013904223;
		prs[i] = prv;
	}

	/* Activate */
	sdram_dfii_pi0_address_write(0);
	sdram_dfii_pi0_baddress_write(0);
	command_p0(DFII_COMMAND_RAS|DFII_COMMAND_CS);
	cdelay(15);

	/* Write test pattern */
	for(p=0;p<DFII_NPHASES;p++)
		for(i=0;i<DFII_PIX_DATA_SIZE;i++)
			MMPTR(sdram_dfii_pix_wrdata_addr[p]+4*i) = prs[DFII_PIX_DATA_SIZE*p+i];
	sdram_dfii_piwr_address_write(0);
	sdram_dfii_piwr_baddress_write(0);
	command_pwr(DFII_COMMAND_CAS|DFII_COMMAND_WE|DFII_COMMAND_CS|DFII_COMMAND_WRDATA);

	/* Calibrate each DQ in turn */
	sdram_dfii_pird_address_write(0);
	sdram_dfii_pird_baddress_write(0);
	for(i=0;i<DFII_PIX_DATA_SIZE/2;i++) {
		ddrphy_dly_sel_write(1 << (DFII_PIX_DATA_SIZE/2-i-1));
		delay = 0;

		/* Find smallest working delay */
		ddrphy_rdly_dq_rst_write(1);
		while(1) {
			command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
			cdelay(15);
			working = 1;
			for(p=0;p<DFII_NPHASES;p++) {
				if(MMPTR(sdram_dfii_pix_rddata_addr[p]+4*i) != prs[DFII_PIX_DATA_SIZE*p+i])
					working = 0;
				if(MMPTR(sdram_dfii_pix_rddata_addr[p]+4*(i+DFII_PIX_DATA_SIZE/2)) != prs[DFII_PIX_DATA_SIZE*p+i+DFII_PIX_DATA_SIZE/2])
					working = 0;
			}
			if(working)
				break;
			delay++;
			if(delay >= ERR_DDRPHY_DELAY)
				break;
			ddrphy_rdly_dq_inc_write(1);
		}
		delay_min = delay;

		/* Get a bit further into the working zone */
		delay++;
		ddrphy_rdly_dq_inc_write(1);

		/* Find largest working delay */
		while(1) {
			command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
			cdelay(15);
			working = 1;
			for(p=0;p<DFII_NPHASES;p++) {
				if(MMPTR(sdram_dfii_pix_rddata_addr[p]+4*i) != prs[DFII_PIX_DATA_SIZE*p+i])
					working = 0;
				if(MMPTR(sdram_dfii_pix_rddata_addr[p]+4*(i+DFII_PIX_DATA_SIZE/2)) != prs[DFII_PIX_DATA_SIZE*p+i+DFII_PIX_DATA_SIZE/2])
					working = 0;
			}
			if(!working)
				break;
			delay++;
			if(delay >= ERR_DDRPHY_DELAY)
				break;
			ddrphy_rdly_dq_inc_write(1);
		}
		delay_max = delay;

		printf("%d:%02d-%02d  ", DFII_PIX_DATA_SIZE/2-i-1, delay_min, delay_max);

		/* Set delay to the middle */
		ddrphy_rdly_dq_rst_write(1);
		for(j=0;j<(delay_min+delay_max)/2;j++)
			ddrphy_rdly_dq_inc_write(1);
	}

	/* Precharge */
	sdram_dfii_pi0_address_write(0);
	sdram_dfii_pi0_baddress_write(0);
	command_p0(DFII_COMMAND_RAS|DFII_COMMAND_WE|DFII_COMMAND_CS);
	cdelay(15);

	printf("completed\n");
}
Ejemplo n.º 11
0
static int write_level(int *delay, int *high_skew)
{
	int i;
	int dq_address;
	unsigned char dq;
	int ok;

	printf("Write leveling: ");

	sdrwlon();
	cdelay(100);
	for(i=0;i<DFII_PIX_DATA_SIZE/2;i++) {
		dq_address = sdram_dfii_pix_rddata_addr[0]+4*(DFII_PIX_DATA_SIZE/2-1-i);
		ddrphy_dly_sel_write(1 << i);
		ddrphy_wdly_dq_rst_write(1);
		ddrphy_wdly_dqs_rst_write(1);

		delay[i] = 0;

		ddrphy_wlevel_strobe_write(1);
		cdelay(10);
		dq = MMPTR(dq_address);
		if(dq != 0) {
			/*
			 * Assume this DQ group has between 1 and 2 bit times of skew.
			 * Bring DQS into the CK=0 zone before continuing leveling.
			 */
			high_skew[i] = 1;
			while(dq != 0) {
				delay[i]++;
				if(delay[i] >= ERR_DDRPHY_DELAY)
					break;
				ddrphy_wdly_dq_inc_write(1);
				ddrphy_wdly_dqs_inc_write(1);
				ddrphy_wlevel_strobe_write(1);
				cdelay(10);
				dq = MMPTR(dq_address);
			 }
		} else
			high_skew[i] = 0;

		while(dq == 0) {
			delay[i]++;
			if(delay[i] >= ERR_DDRPHY_DELAY)
				break;
			ddrphy_wdly_dq_inc_write(1);
			ddrphy_wdly_dqs_inc_write(1);

			ddrphy_wlevel_strobe_write(1);
			cdelay(10);
			dq = MMPTR(dq_address);
		}
	}
	sdrwloff();

	ok = 1;
	for(i=DFII_PIX_DATA_SIZE/2-1;i>=0;i--) {
		printf("%2d%c ", delay[i], high_skew[i] ? '*' : ' ');
		if(delay[i] >= ERR_DDRPHY_DELAY)
			ok = 0;
	}

	if(ok)
		printf("completed\n");
	else
		printf("failed\n");

	return ok;
}