Whitebox
/
u-boot
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ARM: atmel: sama5d3xek: add nor flash init function

Browse Source 
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>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
master
Bo Shen 10 years ago committed by Andreas Bießmann
parent 14b3b44eda
commit a931b13774
1 changed files with 58 additions and 0 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Show Stats Download Patch File Download Diff File
  1. 58
      board/atmel/sama5d3xek/sama5d3xek.c

58
board/atmel/sama5d3xek/sama5d3xek.c
Unescape View File

@ -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

Write Preview
Loading…
Cancel
Save