waterInvestigationHiddenDanger main.c 岳彩东 commit at 2021-01-27

waterInvestigationHiddenDanger/main.c

@@ -76,3 +76,139 @@ static struct resource dm9000_resource[] = {
 		.end	= AT91_CHIPSELECT_2 + 0xFF,
 		.flags	= IORESOURCE_MEM
 	},
+	[2] = {
+		.flags	= IORESOURCE_IRQ
+			| IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE,
+	}
+};
+
+static struct dm9000_plat_data dm9000_platdata = {
+	.flags		= DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
+};
+
+static struct platform_device dm9000_device = {
+	.name		= "dm9000",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(dm9000_resource),
+	.resource	= dm9000_resource,
+	.dev		= {
+		.platform_data	= &dm9000_platdata,
+	}
+};
+
+/*
+ * SMC timings for the DM9000.
+ * Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
+ */
+static struct sam9_smc_config __initdata dm9000_smc_config = {
+	.ncs_read_setup		= 0,
+	.nrd_setup		= 2,
+	.ncs_write_setup	= 0,
+	.nwe_setup		= 2,
+
+	.ncs_read_pulse		= 8,
+	.nrd_pulse		= 4,
+	.ncs_write_pulse	= 8,
+	.nwe_pulse		= 4,
+
+	.read_cycle		= 16,
+	.write_cycle		= 16,
+
+	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
+	.tdf_cycles		= 1,
+};
+
+static void __init ek_add_device_dm9000(void)
+{
+	struct resource *r = &dm9000_resource[2];
+
+	/* Configure chip-select 2 (DM9000) */
+	sam9_smc_configure(0, 2, &dm9000_smc_config);
+
+	/* Configure Reset signal as output */
+	at91_set_gpio_output(AT91_PIN_PC10, 0);
+
+	/* Configure Interrupt pin as input, no pull-up */
+	at91_set_gpio_input(AT91_PIN_PC11, 0);
+
+	r->start = r->end = gpio_to_irq(AT91_PIN_PC11);
+	platform_device_register(&dm9000_device);
+}
+#else
+static void __init ek_add_device_dm9000(void) {}
+#endif /* CONFIG_DM9000 */
+
+
+/*
+ * USB Host Port
+ */
+static struct at91_usbh_data __initdata ek_usbh_data = {
+	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
+};
+
+
+/*
+ * USB Device Port
+ */
+static struct at91_udc_data __initdata ek_udc_data = {
+	.vbus_pin	= AT91_PIN_PB29,
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
+};
+
+
+/*
+ * NAND flash
+ */
+static struct mtd_partition __initdata ek_nand_partition[] = {
+	{
+		.name	= "Partition 1",
+		.offset	= 0,
+		.size	= SZ_256K,
+	},
+	{
+		.name	= "Partition 2",
+		.offset	= MTDPART_OFS_NXTBLK,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct atmel_nand_data __initdata ek_nand_data = {
+	.ale		= 22,
+	.cle		= 21,
+	.det_pin	= -EINVAL,
+	.rdy_pin	= AT91_PIN_PC15,
+	.enable_pin	= AT91_PIN_PC14,
+	.ecc_mode	= NAND_ECC_SOFT,
+	.on_flash_bbt	= 1,
+	.parts		= ek_nand_partition,
+	.num_parts	= ARRAY_SIZE(ek_nand_partition),
+};
+
+static struct sam9_smc_config __initdata ek_nand_smc_config = {
+	.ncs_read_setup		= 0,
+	.nrd_setup		= 1,
+	.ncs_write_setup	= 0,
+	.nwe_setup		= 1,
+
+	.ncs_read_pulse		= 3,
+	.nrd_pulse		= 3,
+	.ncs_write_pulse	= 3,
+	.nwe_pulse		= 3,
+
+	.read_cycle		= 5,
+	.write_cycle		= 5,
+
+	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
+	.tdf_cycles		= 2,
+};
+
+static void __init ek_add_device_nand(void)
+{
+	ek_nand_data.bus_width_16 = board_have_nand_16bit();
+	/* setup bus-width (8 or 16) */
+	if (ek_nand_data.bus_width_16)
+		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
+	else
+		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;