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authorBo Shen <voice.shen@atmel.com>2014-07-18 16:43:07 +0800
committerAndreas Bießmann <andreas.devel@googlemail.com>2014-09-19 00:11:15 +0200
commita931b137747dc35f7397e6cba84d6cd320fe9b2d (patch)
tree15a37c3b98e10d03bf4324febbe63f9d2ba11792 /board
parent14b3b44edaf85e8ebc31e2068c2b5e56c2a941db (diff)
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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.c58
1 files changed, 58 insertions, 0 deletions
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