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);
}
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);
}
/**
* 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;
}
/*
* 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 */
}
