C++ (Cpp) ddr2_init Examples

Example #1

File: sama5d4ek.c Project: CogSystems/u-boot

void mem_init(void)
{
	struct atmel_mpddrc_config ddr2;
	const struct atmel_mpddr *mpddr = (struct atmel_mpddr *)ATMEL_BASE_MPDDRC;
	u32 tmp;

	ddr2_conf(&ddr2);

	/* Enable MPDDR clock */
	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
	at91_system_clk_enable(AT91_PMC_DDR);

	tmp = ATMEL_MPDDRC_RD_DATA_PATH_SHIFT_ONE_CYCLE;
	writel(tmp, &mpddr->rd_data_path);

	tmp = readl(&mpddr->io_calibr);
	tmp = (tmp & ~(ATMEL_MPDDRC_IO_CALIBR_RDIV |
	       ATMEL_MPDDRC_IO_CALIBR_TZQIO |
	       ATMEL_MPDDRC_IO_CALIBR_CALCODEP |
	       ATMEL_MPDDRC_IO_CALIBR_CALCODEN)) |
	       ATMEL_MPDDRC_IO_CALIBR_DDR2_RZQ_52 |
	       ATMEL_MPDDRC_IO_CALIBR_TZQIO_(8) |
	       ATMEL_MPDDRC_IO_CALIBR_EN_CALIB;
	writel(tmp, &mpddr->io_calibr);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
}

Example #2

File: picosam9g45.c Project: eballetbo/u-boot

void mem_init(void)
{
	struct at91_matrix *mat = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	struct atmel_mpddrc_config ddr2;
	unsigned long csa;

	ddr2_conf(&ddr2);

	at91_system_clk_enable(AT91_PMC_DDR);

	/* Chip select 1 is for DDR2/SDRAM */
	csa = readl(&mat->ebicsa);
	csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
	csa &= ~AT91_MATRIX_EBI_VDDIOMSEL_3_3V;
	writel(csa, &mat->ebicsa);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
	ddr2_init(ATMEL_BASE_DDRSDRC1, ATMEL_BASE_CS1, &ddr2);
}

Example #3

File: board.c Project: CogSystems/u-boot

void mem_init(void)
{
	struct atmel_mpddrc_config ddr2;

	ddr2_conf(&ddr2);

	at91_system_clk_enable(AT91_PMC_DDR);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
}

Example #4

File: board.c Project: NAM-IL/uboot

void mem_init(void)
{
	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
	struct atmel_mpddr ddr2;

	ddr2_conf(&ddr2);

	/* enable DDR2 clock */
	writel(AT91_PMC_DDR, &pmc->scer);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_DDRSDRC0, ATMEL_BASE_CS6, &ddr2);
}

Example #5

File: sama5d3_xplained.c Project: OpenNoah/u-boot

void mem_init(void)
{
	struct atmel_mpddrc_config ddr2;

	ddr2_conf(&ddr2);

	/* Enable MPDDR clock */
	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
	at91_system_clk_enable(AT91_PMC_DDR);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
}

Example #6

File: sama5d4_xplained.c Project: RowanLiu/ported_uboot

void mem_init(void)
{
	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
	struct atmel_mpddrc_config ddr2;

	ddr2_conf(&ddr2);

	/* enable MPDDR clock */
	at91_periph_clk_enable(ATMEL_ID_MPDDRC);
	writel(AT91_PMC_DDR, &pmc->scer);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_MPDDRC, ATMEL_BASE_DDRCS, &ddr2);
}

Example #7

File: at91sam9x5ek.c Project: bradfa/u-boot

void mem_init(void)
{
	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	struct atmel_mpddrc_config ddr2;
	unsigned long csa;

	ddr2_conf(&ddr2);

	/* enable DDR2 clock */
	writel(AT91_PMC_DDR, &pmc->scer);

	/* Chip select 1 is for DDR2/SDRAM */
	csa = readl(&matrix->ebicsa);
	csa |= AT91_MATRIX_EBI_CS1A_SDRAMC;
	csa &= ~AT91_MATRIX_EBI_DBPU_OFF;
	csa |= AT91_MATRIX_EBI_DBPD_OFF;
	csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL;
	writel(csa, &matrix->ebicsa);

	/* DDRAM2 Controller initialize */
	ddr2_init(ATMEL_BASE_DDRSDRC, ATMEL_BASE_CS1, &ddr2);
}