Exemplo n.º 1
0
static void otc570_nand_hw_init(void)
{
	unsigned long csa;
	at91_smc_t	*smc 	= (at91_smc_t *) ATMEL_BASE_SMC0;
	at91_matrix_t	*matrix = (at91_matrix_t *) ATMEL_BASE_MATRIX;

	/* Enable CS3 */
	csa = readl(&matrix->csa[0]) | AT91_MATRIX_CSA_EBI_CS3A;
	writel(csa, &matrix->csa[0]);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
		AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(2),
		&smc->cs[3].setup);

	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
		&smc->cs[3].pulse);

	writel(AT91_SMC_CYCLE_NWE(6) | AT91_SMC_CYCLE_NRD(6),
		&smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
		AT91_SMC_MODE_EXNW_DISABLE |
		AT91_SMC_MODE_DBW_8 |
		AT91_SMC_MODE_TDF_CYCLE(12),
		&smc->cs[3].mode);

	/* Configure RDY/BSY */
	at91_set_pio_input(CONFIG_SYS_NAND_READY_PIN, 1);

	/* Enable NandFlash */
	at91_set_pio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
Exemplo n.º 2
0
static void nand_hw_init(void)
{
	struct at91_smc *smc       = (struct at91_smc    *)ATMEL_BASE_SMC;
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	unsigned long csa;

	/* Enable CS3 as NAND/SmartMedia */
	csa = readl(&matrix->ebicsa);
	csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
	writel(csa, &matrix->ebicsa);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
	       &smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) |
	       AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4),
	       &smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
	       &smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       AT91_SMC_MODE_DBW_8 |
	       AT91_SMC_MODE_TDF_CYCLE(3),
	       &smc->cs[3].mode);

	/* Configure RDY/BSY */
	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);

	/* Enable NandFlash */
	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
Exemplo n.º 3
0
void sama5d3_xplained_nand_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;

	at91_periph_clk_enable(ATMEL_ID_SMC);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(1) |
	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(1),
	       &smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
	       AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(5),
	       &smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(8) | AT91_SMC_CYCLE_NRD(8),
	       &smc->cs[3].cycle);
	writel(AT91_SMC_TIMINGS_TCLR(3) | AT91_SMC_TIMINGS_TADL(10) |
	       AT91_SMC_TIMINGS_TAR(3)  | AT91_SMC_TIMINGS_TRR(4)   |
	       AT91_SMC_TIMINGS_TWB(5)  | AT91_SMC_TIMINGS_RBNSEL(3)|
	       AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
	       AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
	       AT91_SMC_MODE_DBW_8 |
#endif
	       AT91_SMC_MODE_TDF_CYCLE(3),
	       &smc->cs[3].mode);
}
Exemplo n.º 4
0
static void at91sam9x5ek_nand_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
	unsigned long csa;

	/* Enable CS3 */
	csa = readl(&matrix->ebicsa);
	csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
	/* NAND flash on D16 */
	csa |= AT91_MATRIX_NFD0_ON_D16;

	/* Configure IO drive */
	csa &= ~AT91_MATRIX_EBI_EBI_IOSR_NORMAL;

	writel(csa, &matrix->ebicsa);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
		&smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
		AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6),
		&smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(6),
		&smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
		AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
		AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
		AT91_SMC_MODE_DBW_8 |
#endif
		AT91_SMC_MODE_TDF_CYCLE(1),
		&smc->cs[3].mode);

	writel(1 << ATMEL_ID_PIOCD, &pmc->pcer);

	/* Configure RDY/BSY */
	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
	/* Enable NandFlash */
	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);

	at91_set_a_periph(AT91_PIO_PORTD, 0, 1);	/* NAND OE */
	at91_set_a_periph(AT91_PIO_PORTD, 1, 1);	/* NAND WE */
	at91_set_a_periph(AT91_PIO_PORTD, 2, 1);	/* NAND ALE */
	at91_set_a_periph(AT91_PIO_PORTD, 3, 1);	/* NAND CLE */
	at91_set_a_periph(AT91_PIO_PORTD, 6, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 7, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 8, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 9, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 10, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 11, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 12, 1);
	at91_set_a_periph(AT91_PIO_PORTD, 13, 1);
}
Exemplo n.º 5
0
static void sama5d3xek_nor_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;

	at91_periph_clk_enable(ATMEL_ID_SMC);

	/* Configure SMC CS0 for NOR flash */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
	       &smc->cs[0].setup);
	writel(AT91_SMC_PULSE_NWE(10) | AT91_SMC_PULSE_NCS_WR(11) |
	       AT91_SMC_PULSE_NRD(10) | AT91_SMC_PULSE_NCS_RD(11),
	       &smc->cs[0].pulse);
	writel(AT91_SMC_CYCLE_NWE(11) | AT91_SMC_CYCLE_NRD(14),
	       &smc->cs[0].cycle);
	writel(AT91_SMC_TIMINGS_TCLR(0) | AT91_SMC_TIMINGS_TADL(0)  |
	       AT91_SMC_TIMINGS_TAR(0)  | AT91_SMC_TIMINGS_TRR(0)   |
	       AT91_SMC_TIMINGS_TWB(0)  | AT91_SMC_TIMINGS_RBNSEL(0)|
	       AT91_SMC_TIMINGS_NFSEL(0), &smc->cs[0].timings);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       AT91_SMC_MODE_DBW_16 |
	       AT91_SMC_MODE_TDF_CYCLE(1),
	       &smc->cs[0].mode);

	/* Address pin (A1 ~ A23) configuration */
	at91_set_a_periph(AT91_PIO_PORTE, 1, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 2, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 3, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 4, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 5, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 6, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 7, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 8, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 9, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 10, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 11, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 12, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 13, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 14, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 15, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 16, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 17, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 18, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 19, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 20, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 21, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 22, 0);
	at91_set_a_periph(AT91_PIO_PORTE, 23, 0);
	/* CS0 pin configuration */
	at91_set_a_periph(AT91_PIO_PORTE, 26, 0);
}
Exemplo n.º 6
0
static void at91sam9n12ek_nand_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	unsigned long csa;

	/* Assign CS3 to NAND/SmartMedia Interface */
	csa = readl(&matrix->ebicsa);
	csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
	/* Configure databus */
	csa &= ~AT91_MATRIX_NFD0_ON_D16; /* nandflash connect to D0~D15 */
	/* Configure IO drive */
	csa |= AT91_MATRIX_EBI_EBI_IOSR_NORMAL;

	writel(csa, &matrix->ebicsa);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
		AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
		&smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
		AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6),
		&smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(7),
		&smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
		AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
		AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
		AT91_SMC_MODE_DBW_8 |
#endif
		AT91_SMC_MODE_TDF_CYCLE(1),
		&smc->cs[3].mode);

	/* Configure RDY/BSY pin */
	at91_set_pio_input(AT91_PIO_PORTD, 5, 1);

	/* Configure ENABLE pin for NandFlash */
	at91_set_pio_output(AT91_PIO_PORTD, 4, 1);

	at91_set_a_periph(AT91_PIO_PORTD, 0, 1);    /* NAND OE */
	at91_set_a_periph(AT91_PIO_PORTD, 1, 1);    /* NAND WE */
	at91_set_a_periph(AT91_PIO_PORTD, 2, 1);    /* ALE */
	at91_set_a_periph(AT91_PIO_PORTD, 3, 1);    /* CLE */
}
Exemplo n.º 7
0
static int gurnard_nand_hw_init(void)
{
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
	ulong flags;
	int ret;

	/* Enable CS3 as NAND/SmartMedia */
	setbits_le32(&matrix->ebicsa, AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
	       AT91_SMC_SETUP_NRD(2) | AT91_SMC_SETUP_NCS_RD(0),
	       &smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(4) |
	       AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(4),
	       &smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(7),
	       &smc->cs[3].cycle);
#ifdef CONFIG_SYS_NAND_DBW_16
	flags = AT91_SMC_MODE_DBW_16;
#else
	flags = AT91_SMC_MODE_DBW_8;
#endif
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       flags |
	       AT91_SMC_MODE_TDF_CYCLE(3),
	       &smc->cs[3].mode);

	ret = gpio_request(CONFIG_SYS_NAND_READY_PIN, "nand_rdy");
	if (ret)
		return ret;
	gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);

	/* Enable NandFlash */
	ret = gpio_request(CONFIG_SYS_NAND_ENABLE_PIN, "nand_ce");
	if (ret)
		return ret;
	gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);

	return 0;
}
Exemplo n.º 8
0
/*
 * Miscelaneous platform dependent initialisations
 */
static void wb45n_nand_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	unsigned long csa;

	csa = readl(&matrix->ebicsa);
	/* Enable CS3 */
	csa |= AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA;
	/* NAND flash on D0 */
	csa &= ~AT91_MATRIX_NFD0_ON_D16;
	writel(csa, &matrix->ebicsa);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
	       AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
	       &smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(5) |
	       AT91_SMC_PULSE_NRD(4) | AT91_SMC_PULSE_NCS_RD(6),
	       &smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(6),
	       &smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       AT91_SMC_MODE_DBW_8 |
	       AT91_SMC_MODE_TDF_CYCLE(1), &smc->cs[3].mode);

	at91_periph_clk_enable(ATMEL_ID_PIOCD);

	/* Configure RDY/BSY */
	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);
	/* Enable NandFlash */
	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
	/* Disable Flash Write Protect Line */
	at91_set_gpio_output(AT91_PIN_PD10, 1);

	at91_set_a_periph(AT91_PIO_PORTD, 0, 1);	/* NAND OE */
	at91_set_a_periph(AT91_PIO_PORTD, 1, 1);	/* NAND WE */
	at91_set_a_periph(AT91_PIO_PORTD, 2, 1);	/* NAND ALE */
	at91_set_a_periph(AT91_PIO_PORTD, 3, 1);	/* NAND CLE */
}
Exemplo n.º 9
0
void at91sam9n12ek_ks8851_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;

	writel(AT91_SMC_SETUP_NWE(2) | AT91_SMC_SETUP_NCS_WR(0) |
	       AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
	       &smc->cs[2].setup);
	writel(AT91_SMC_PULSE_NWE(7) | AT91_SMC_PULSE_NCS_WR(7) |
	       AT91_SMC_PULSE_NRD(7) | AT91_SMC_PULSE_NCS_RD(7),
	       &smc->cs[2].pulse);
	writel(AT91_SMC_CYCLE_NWE(9) | AT91_SMC_CYCLE_NRD(9),
	       &smc->cs[2].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       AT91_SMC_MODE_BAT | AT91_SMC_MODE_DBW_16 |
	       AT91_SMC_MODE_TDF_CYCLE(1),
	       &smc->cs[2].mode);

	/* Configure NCS2 PIN */
	at91_set_b_periph(AT91_PIO_PORTD, 19, 0);
}
Exemplo n.º 10
0
static void sama5d4_xplained_nand_hw_init(void)
{
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;

	at91_periph_clk_enable(ATMEL_ID_SMC);

	/* Configure SMC CS3 for NAND */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(1) |
	       AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(1),
	       &smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(2) | AT91_SMC_PULSE_NCS_WR(3) |
	       AT91_SMC_PULSE_NRD(2) | AT91_SMC_PULSE_NCS_RD(3),
	       &smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
	       &smc->cs[3].cycle);
	writel(AT91_SMC_TIMINGS_TCLR(2) | AT91_SMC_TIMINGS_TADL(7) |
	       AT91_SMC_TIMINGS_TAR(2)  | AT91_SMC_TIMINGS_TRR(3)   |
	       AT91_SMC_TIMINGS_TWB(7)  | AT91_SMC_TIMINGS_RBNSEL(3)|
	       AT91_SMC_TIMINGS_NFSEL(1), &smc->cs[3].timings);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       AT91_SMC_MODE_DBW_8 |
	       AT91_SMC_MODE_TDF_CYCLE(3),
	       &smc->cs[3].mode);

	at91_set_a_periph(AT91_PIO_PORTC, 5, 0);	/* D0 */
	at91_set_a_periph(AT91_PIO_PORTC, 6, 0);	/* D1 */
	at91_set_a_periph(AT91_PIO_PORTC, 7, 0);	/* D2 */
	at91_set_a_periph(AT91_PIO_PORTC, 8, 0);	/* D3 */
	at91_set_a_periph(AT91_PIO_PORTC, 9, 0);	/* D4 */
	at91_set_a_periph(AT91_PIO_PORTC, 10, 0);	/* D5 */
	at91_set_a_periph(AT91_PIO_PORTC, 11, 0);	/* D6 */
	at91_set_a_periph(AT91_PIO_PORTC, 12, 0);	/* D7 */
	at91_set_a_periph(AT91_PIO_PORTC, 13, 0);	/* RE */
	at91_set_a_periph(AT91_PIO_PORTC, 14, 0);	/* WE */
	at91_set_a_periph(AT91_PIO_PORTC, 15, 1);	/* NCS */
	at91_set_a_periph(AT91_PIO_PORTC, 16, 1);	/* RDY */
	at91_set_a_periph(AT91_PIO_PORTC, 17, 1);	/* ALE */
	at91_set_a_periph(AT91_PIO_PORTC, 18, 1);	/* CLE */
}
Exemplo n.º 11
0
static void sbc35_a9g20_nand_hw_init(void)
{
	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	unsigned long csa;

	/* Enable CS3 */
	csa = readl(&matrix->ebicsa);
	csa |= AT91_MATRIX_CS3A_SMC_SMARTMEDIA;
	writel(csa, &matrix->ebicsa);

	/* Configure SMC CS3 for NAND/SmartMedia */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
		AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
		&smc->cs[3].setup);
	writel(AT91_SMC_PULSE_NWE(3) | AT91_SMC_PULSE_NCS_WR(3) |
		AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(3),
		&smc->cs[3].pulse);
	writel(AT91_SMC_CYCLE_NWE(5) | AT91_SMC_CYCLE_NRD(5),
		&smc->cs[3].cycle);
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
		AT91_SMC_MODE_EXNW_DISABLE |
#ifdef CONFIG_SYS_NAND_DBW_16
		AT91_SMC_MODE_DBW_16 |
#else /* CONFIG_SYS_NAND_DBW_8 */
		AT91_SMC_MODE_DBW_8 |
#endif
		AT91_SMC_MODE_TDF_CYCLE(2),
		&smc->cs[3].mode);

	writel(1 << ATMEL_ID_PIOC, &pmc->pcer);

	/* Configure RDY/BSY */
	at91_set_gpio_input(CONFIG_SYS_NAND_READY_PIN, 1);

	/* Enable NandFlash */
	at91_set_gpio_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
Exemplo n.º 12
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static void pm9g45_nand_hw_init(void)
{
    unsigned long csa;
    struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
    struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
    struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;

    /* Enable CS3 */
    csa = readl(&matrix->ccr[6]) | AT91_MATRIX_CSA_EBI_CS3A;
    writel(csa, &matrix->ccr[6]);

    /* Configure SMC CS3 for NAND/SmartMedia */
    writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(0) |
           AT91_SMC_SETUP_NRD(1) | AT91_SMC_SETUP_NCS_RD(0),
           &smc->cs[3].setup);

    writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(3) |
           AT91_SMC_PULSE_NRD(3) | AT91_SMC_PULSE_NCS_RD(2),
           &smc->cs[3].pulse);

    writel(AT91_SMC_CYCLE_NWE(7) | AT91_SMC_CYCLE_NRD(4),
           &smc->cs[3].cycle);

    writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_WM_NWE |
           AT91_SMC_MODE_EXNW_DISABLE |
           AT91_SMC_MODE_DBW_8 |
           AT91_SMC_MODE_TDF_CYCLE(3),
           &smc->cs[3].mode);

    writel(1 << ATMEL_ID_PIOC, &pmc->pcer);

#ifdef CONFIG_SYS_NAND_READY_PIN
    /* Configure RDY/BSY */
    gpio_direction_input(CONFIG_SYS_NAND_READY_PIN);
#endif

    /* Enable NandFlash */
    gpio_direction_output(CONFIG_SYS_NAND_ENABLE_PIN, 1);
}
Exemplo n.º 13
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/**
 * Initialise the memory bus settings so that we can talk to the
 * memory mapped FPGA
 */
static int fpga_hw_init(void)
{
	struct at91_matrix *matrix = (struct at91_matrix *)ATMEL_BASE_MATRIX;
	struct at91_smc *smc = (struct at91_smc *)ATMEL_BASE_SMC;
	int i;

	setbits_le32(&matrix->ebicsa, AT91_MATRIX_EBI_CS1A_SDRAMC);

	at91_set_a_periph(2, 4, 0); /* EBIA21 */
	at91_set_a_periph(2, 5, 0); /* EBIA22 */
	at91_set_a_periph(2, 6, 0); /* EBIA23 */
	at91_set_a_periph(2, 7, 0); /* EBIA24 */
	at91_set_a_periph(2, 12, 0); /* EBIA25 */
	for (i = 15; i <= 31; i++) /* EBINWAIT & EBID16 - 31 */
		at91_set_a_periph(2, i, 0);

	/* configure SMC cs0 for FPGA access timing */
	writel(AT91_SMC_SETUP_NWE(1) | AT91_SMC_SETUP_NCS_WR(2) |
	       AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(2),
	       &smc->cs[0].setup);
	writel(AT91_SMC_PULSE_NWE(5) | AT91_SMC_PULSE_NCS_WR(4) |
	       AT91_SMC_PULSE_NRD(6) | AT91_SMC_PULSE_NCS_RD(4),
	       &smc->cs[0].pulse);
	writel(AT91_SMC_CYCLE_NWE(6) | AT91_SMC_CYCLE_NRD(6),
	       &smc->cs[0].cycle);
	writel(AT91_SMC_MODE_BAT |
	       AT91_SMC_MODE_EXNW_DISABLE |
	       AT91_SMC_MODE_DBW_32 |
	       AT91_SMC_MODE_TDF |
	       AT91_SMC_MODE_TDF_CYCLE(2),
	       &smc->cs[0].mode);

	/* Do a write to within EBI_CS1 to enable the SDCK */
	writel(0, ATMEL_BASE_CS1);

	return 0;
}
Exemplo n.º 14
0
/*
 * Static memory controller initialization to enable Beckhoff ET1100 EtherCAT
 * controller debugging
 * The ET1100 is located at physical address 0x70000000
 * Its process memory is located at physical address 0x70001000
 */
static void otc570_ethercat_hw_init(void)
{
	at91_smc_t	*smc1 	= (at91_smc_t *) ATMEL_BASE_SMC1;

	/* Configure SMC EBI1_CS0 for EtherCAT */
	writel(AT91_SMC_SETUP_NWE(0) | AT91_SMC_SETUP_NCS_WR(0) |
		AT91_SMC_SETUP_NRD(0) | AT91_SMC_SETUP_NCS_RD(0),
		&smc1->cs[0].setup);
	writel(AT91_SMC_PULSE_NWE(4) | AT91_SMC_PULSE_NCS_WR(9) |
		AT91_SMC_PULSE_NRD(5) | AT91_SMC_PULSE_NCS_RD(9),
		&smc1->cs[0].pulse);
	writel(AT91_SMC_CYCLE_NWE(10) | AT91_SMC_CYCLE_NRD(6),
		&smc1->cs[0].cycle);
	/*
	 * Configure behavior at external wait signal, byte-select mode, 16 bit
	 * data bus width, none data float wait states and TDF optimization
	 */
	writel(AT91_SMC_MODE_RM_NRD | AT91_SMC_MODE_EXNW_READY |
		AT91_SMC_MODE_DBW_16 | AT91_SMC_MODE_TDF_CYCLE(0) |
		AT91_SMC_MODE_TDF, &smc1->cs[0].mode);

	/* Configure RDY/BSY */
	at91_set_b_periph(AT91_PIO_PORTE, 20, 0);	/* EBI1_NWAIT */
}