diff options
| author | Bo Shen <voice.shen@atmel.com> | 2014-07-18 16:43:07 +0800 |
|---|---|---|
| committer | Andreas Bießmann <andreas.devel@googlemail.com> | 2014-09-19 00:11:15 +0200 |
| commit | a931b137747dc35f7397e6cba84d6cd320fe9b2d (patch) | |
| tree | 15a37c3b98e10d03bf4324febbe63f9d2ba11792 /board | |
| parent | 14b3b44edaf85e8ebc31e2068c2b5e56c2a941db (diff) | |
| download | talos-obmc-uboot-a931b137747dc35f7397e6cba84d6cd320fe9b2d.tar.gz talos-obmc-uboot-a931b137747dc35f7397e6cba84d6cd320fe9b2d.zip | |
ARM: atmel: sama5d3xek: add nor flash init function
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>
Diffstat (limited to 'board')
| -rw-r--r-- | board/atmel/sama5d3xek/sama5d3xek.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/board/atmel/sama5d3xek/sama5d3xek.c b/board/atmel/sama5d3xek/sama5d3xek.c index c835c12d02..f53754bc87 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 |
