waterDataFluctuationCorrelation synchronousMemoryDatabase.c 沈瑞清 commit at 2020-11-20

waterDataFluctuationCorrelation/fluctuationCorrelationOfFireHydrant/synchronousMemoryDatabase.c

@@ -118,3 +118,100 @@ static struct platform_device davinci_nand_device = {
 };
 
 #if defined(CONFIG_BLK_DEV_PALMCHIP_BK3710) || \
+    defined(CONFIG_BLK_DEV_PALMCHIP_BK3710_MODULE)
+#define HAS_ATA 1
+#else
+#define HAS_ATA 0
+#endif
+
+/* CPLD Register 0 bits to control ATA */
+#define DM646X_EVM_ATA_RST		BIT(0)
+#define DM646X_EVM_ATA_PWD		BIT(1)
+
+/* CPLD Register 0 Client: used for I/O Control */
+static int cpld_reg0_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id)
+{
+	if (HAS_ATA) {
+		u8 data;
+		struct i2c_msg msg[2] = {
+			{
+				.addr = client->addr,
+				.flags = I2C_M_RD,
+				.len = 1,
+				.buf = &data,
+			},
+			{
+				.addr = client->addr,
+				.flags = 0,
+				.len = 1,
+				.buf = &data,
+			},
+		};
+
+		/* Clear ATA_RSTn and ATA_PWD bits to enable ATA operation. */
+		i2c_transfer(client->adapter, msg, 1);
+		data &= ~(DM646X_EVM_ATA_RST | DM646X_EVM_ATA_PWD);
+		i2c_transfer(client->adapter, msg + 1, 1);
+	}
+
+	return 0;
+}
+
+static const struct i2c_device_id cpld_reg_ids[] = {
+	{ "cpld_reg0", 0, },
+	{ },
+};
+
+static struct i2c_driver dm6467evm_cpld_driver = {
+	.driver.name	= "cpld_reg0",
+	.id_table	= cpld_reg_ids,
+	.probe		= cpld_reg0_probe,
+};
+
+/* LEDS */
+
+static struct gpio_led evm_leds[] = {
+	{ .name = "DS1", .active_low = 1, },
+	{ .name = "DS2", .active_low = 1, },
+	{ .name = "DS3", .active_low = 1, },
+	{ .name = "DS4", .active_low = 1, },
+};
+
+static const struct gpio_led_platform_data evm_led_data = {
+	.num_leds = ARRAY_SIZE(evm_leds),
+	.leds     = evm_leds,
+};
+
+static struct platform_device *evm_led_dev;
+
+static int evm_led_setup(struct i2c_client *client, int gpio,
+			unsigned int ngpio, void *c)
+{
+	struct gpio_led *leds = evm_leds;
+	int status;
+
+	while (ngpio--) {
+		leds->gpio = gpio++;
+		leds++;
+	}
+
+	evm_led_dev = platform_device_alloc("leds-gpio", 0);
+	platform_device_add_data(evm_led_dev, &evm_led_data,
+				sizeof(evm_led_data));
+
+	evm_led_dev->dev.parent = &client->dev;
+	status = platform_device_add(evm_led_dev);
+	if (status < 0) {
+		platform_device_put(evm_led_dev);
+		evm_led_dev = NULL;
+	}
+	return status;
+}
+
+static int evm_led_teardown(struct i2c_client *client, int gpio,
+				unsigned ngpio, void *c)
+{
+	if (evm_led_dev) {
+		platform_device_unregister(evm_led_dev);
+		evm_led_dev = NULL;