Add NOR flash hardware init function, including SMC and PIO configuration.
Signed-off-by: Bo Shen voice.shen@atmel.com --- board/atmel/sama5d3xek/sama5d3xek.c | 58 +++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+)
diff --git a/board/atmel/sama5d3xek/sama5d3xek.c b/board/atmel/sama5d3xek/sama5d3xek.c index c835c12..0e95609 100644 --- a/board/atmel/sama5d3xek/sama5d3xek.c +++ b/board/atmel/sama5d3xek/sama5d3xek.c @@ -67,6 +67,61 @@ void sama5d3xek_nand_hw_init(void) } #endif
+#ifndef CONFIG_SYS_NO_FLASH +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); +} +#endif + #ifdef CONFIG_CMD_USB static void sama5d3xek_usb_hw_init(void) { @@ -181,6 +236,9 @@ int board_init(void) #ifdef CONFIG_NAND_ATMEL sama5d3xek_nand_hw_init(); #endif +#ifndef CONFIG_SYS_NO_FLASH + sama5d3xek_nor_hw_init(); +#endif #ifdef CONFIG_CMD_USB sama5d3xek_usb_hw_init(); #endif