efDataPreprocessing basicAlgorithmEncapsulation.c 袁开兴 commit at 2020-11-10

efDataPreprocessing/dataProcessing/basicAlgorithmEncapsulation.c

@@ -328,3 +328,133 @@ static struct resource nand_resources[] = {
 };
 
 static struct platform_device at91sam9260_nand_device = {
+	.name		= "atmel_nand",
+	.id		= -1,
+	.dev		= {
+				.platform_data	= &nand_data,
+	},
+	.resource	= nand_resources,
+	.num_resources	= ARRAY_SIZE(nand_resources),
+};
+
+void __init at91_add_device_nand(struct atmel_nand_data *data)
+{
+	unsigned long csa;
+
+	if (!data)
+		return;
+
+	csa = at91_matrix_read(AT91_MATRIX_EBICSA);
+	at91_matrix_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
+
+	/* enable pin */
+	if (gpio_is_valid(data->enable_pin))
+		at91_set_gpio_output(data->enable_pin, 1);
+
+	/* ready/busy pin */
+	if (gpio_is_valid(data->rdy_pin))
+		at91_set_gpio_input(data->rdy_pin, 1);
+
+	/* card detect pin */
+	if (gpio_is_valid(data->det_pin))
+		at91_set_gpio_input(data->det_pin, 1);
+
+	nand_data = *data;
+	platform_device_register(&at91sam9260_nand_device);
+}
+#else
+void __init at91_add_device_nand(struct atmel_nand_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  TWI (i2c)
+ * -------------------------------------------------------------------- */
+
+/*
+ * Prefer the GPIO code since the TWI controller isn't robust
+ * (gets overruns and underruns under load) and can only issue
+ * repeated STARTs in one scenario (the driver doesn't yet handle them).
+ */
+
+#if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE)
+
+static struct i2c_gpio_platform_data pdata = {
+	.sda_pin		= AT91_PIN_PA23,
+	.sda_is_open_drain	= 1,
+	.scl_pin		= AT91_PIN_PA24,
+	.scl_is_open_drain	= 1,
+	.udelay			= 2,		/* ~100 kHz */
+};
+
+static struct platform_device at91sam9260_twi_device = {
+	.name			= "i2c-gpio",
+	.id			= 0,
+	.dev.platform_data	= &pdata,
+};
+
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
+{
+	at91_set_GPIO_periph(AT91_PIN_PA23, 1);		/* TWD (SDA) */
+	at91_set_multi_drive(AT91_PIN_PA23, 1);
+
+	at91_set_GPIO_periph(AT91_PIN_PA24, 1);		/* TWCK (SCL) */
+	at91_set_multi_drive(AT91_PIN_PA24, 1);
+
+	i2c_register_board_info(0, devices, nr_devices);
+	platform_device_register(&at91sam9260_twi_device);
+}
+
+#elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE)
+
+static struct resource twi_resources[] = {
+	[0] = {
+		.start	= AT91SAM9260_BASE_TWI,
+		.end	= AT91SAM9260_BASE_TWI + SZ_16K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= NR_IRQS_LEGACY + AT91SAM9260_ID_TWI,
+		.end	= NR_IRQS_LEGACY + AT91SAM9260_ID_TWI,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device at91sam9260_twi_device = {
+	.id		= 0,
+	.resource	= twi_resources,
+	.num_resources	= ARRAY_SIZE(twi_resources),
+};
+
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices)
+{
+	/* IP version is not the same on 9260 and g20 */
+	if (cpu_is_at91sam9g20()) {
+		at91sam9260_twi_device.name = "i2c-at91sam9g20";
+	} else {
+		at91sam9260_twi_device.name = "i2c-at91sam9260";
+	}
+
+	/* pins used for TWI interface */
+	at91_set_A_periph(AT91_PIN_PA23, 0);		/* TWD */
+	at91_set_multi_drive(AT91_PIN_PA23, 1);
+
+	at91_set_A_periph(AT91_PIN_PA24, 0);		/* TWCK */
+	at91_set_multi_drive(AT91_PIN_PA24, 1);
+
+	i2c_register_board_info(0, devices, nr_devices);
+	platform_device_register(&at91sam9260_twi_device);
+}
+#else
+void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {}
+#endif
+
+
+/* --------------------------------------------------------------------
+ *  SPI
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
+static u64 spi_dmamask = DMA_BIT_MASK(32);
+
+static struct resource spi0_resources[] = {