On 07/18/2014 10:43 AM, Bo Shen wrote:
Add NOR flash hardware init function, including SMC and PIO configuration.
Signed-off-by: Bo Shen voice.shen@atmel.com
Reviewed-by: Andreas Bießmann andreas.devel@googlemail.com
Changes in v2: None
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..f53754b 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 +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);
+} +#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