apalis_imx6: unify sd/mmc drive strength with linux kernel settings

[oweals/u-boot.git] / include / serial.h

diff --git a/include/serial.h b/include/serial.h
index 020cd392e888e2c0bdc2e28b025257e489db774a..c1368c68b6473bee38e19d766d08324185b3fa47 100644 (file)
--- a/include/serial.h
+++ b/include/serial.h
@@ -75,6 +75,8 @@ enum serial_par {
 
 #define SERIAL_PAR_SHIFT       0
 #define SERIAL_PAR_MASK                (0x03 << SERIAL_PAR_SHIFT)
+#define SERIAL_SET_PARITY(parity) \
+       ((parity << SERIAL_PAR_SHIFT) & SERIAL_PAR_MASK)
 #define SERIAL_GET_PARITY(config) \
        ((config & SERIAL_PAR_MASK) >> SERIAL_PAR_SHIFT)
 
@@ -87,6 +89,8 @@ enum serial_bits {
 
 #define SERIAL_BITS_SHIFT      2
 #define SERIAL_BITS_MASK       (0x3 << SERIAL_BITS_SHIFT)
+#define SERIAL_SET_BITS(bits) \
+       ((bits << SERIAL_BITS_SHIFT) & SERIAL_BITS_MASK)
 #define SERIAL_GET_BITS(config) \
        ((config & SERIAL_BITS_MASK) >> SERIAL_BITS_SHIFT)
 
@@ -99,6 +103,8 @@ enum serial_stop {
 
 #define SERIAL_STOP_SHIFT      4
 #define SERIAL_STOP_MASK       (0x3 << SERIAL_STOP_SHIFT)
+#define SERIAL_SET_STOP(stop) \
+       ((stop << SERIAL_STOP_SHIFT) & SERIAL_STOP_MASK)
 #define SERIAL_GET_STOP(config) \
        ((config & SERIAL_STOP_MASK) >> SERIAL_STOP_SHIFT)
 
@@ -107,9 +113,43 @@ enum serial_stop {
                      bits << SERIAL_BITS_SHIFT | \
                      stop << SERIAL_STOP_SHIFT)
 
-#define SERIAL_DEFAULT_CONFIG  SERIAL_PAR_NONE << SERIAL_PAR_SHIFT | \
-                               SERIAL_8_BITS << SERIAL_BITS_SHIFT | \
-                               SERIAL_ONE_STOP << SERIAL_STOP_SHIFT
+#define SERIAL_DEFAULT_CONFIG \
+                       (SERIAL_PAR_NONE << SERIAL_PAR_SHIFT | \
+                        SERIAL_8_BITS << SERIAL_BITS_SHIFT | \
+                        SERIAL_ONE_STOP << SERIAL_STOP_SHIFT)
+
+enum serial_chip_type {
+       SERIAL_CHIP_UNKNOWN = -1,
+       SERIAL_CHIP_16550_COMPATIBLE,
+};
+
+enum adr_space_type {
+       SERIAL_ADDRESS_SPACE_MEMORY = 0,
+       SERIAL_ADDRESS_SPACE_IO,
+};
+
+/**
+ * struct serial_device_info - structure to hold serial device info
+ *
+ * @type:      type of the UART chip
+ * @addr_space:        address space to access the registers
+ * @addr:      physical address of the registers
+ * @reg_width: size (in bytes) of the IO accesses to the registers
+ * @reg_offset:        offset to apply to the @addr from the start of the registers
+ * @reg_shift: quantity to shift the register offsets by
+ * @baudrate:  baud rate
+ */
+struct serial_device_info {
+       enum serial_chip_type type;
+       enum adr_space_type addr_space;
+       ulong addr;
+       u8 reg_width;
+       u8 reg_offset;
+       u8 reg_shift;
+       unsigned int baudrate;
+};
+
+#define SERIAL_DEFAULT_ADDRESS 0xBADACCE5
 
 /**
  * struct struct dm_serial_ops - Driver model serial operations
@@ -188,6 +228,17 @@ struct dm_serial_ops {
        int (*loop)(struct udevice *dev, int on);
 #endif
 
+       /**
+        * getconfig() - Get the uart configuration
+        * (parity, 5/6/7/8 bits word length, stop bits)
+        *
+        * Get a current config for this device.
+        *
+        * @dev: Device pointer
+        * @serial_config: Returns config information (see SERIAL_... above)
+        * @return 0 if OK, -ve on error
+        */
+       int (*getconfig)(struct udevice *dev, uint *serial_config);
        /**
         * setconfig() - Set up the uart configuration
         * (parity, 5/6/7/8 bits word length, stop bits)
@@ -195,12 +246,18 @@ struct dm_serial_ops {
         * Set up a new config for this device.
         *
         * @dev: Device pointer
-        * @parity: parity to use
-        * @bits: bits number to use
-        * @stop: stop bits number to use
+        * @serial_config: number of bits, parity and number of stopbits to use
         * @return 0 if OK, -ve on error
         */
        int (*setconfig)(struct udevice *dev, uint serial_config);
+       /**
+        * getinfo() - Get serial device information
+        *
+        * @dev: Device pointer
+        * @info: struct serial_device_info to fill
+        * @return 0 if OK, -ve on error
+        */
+       int (*getinfo)(struct udevice *dev, struct serial_device_info *info);
 };
 
 /**
@@ -223,10 +280,42 @@ struct serial_dev_priv {
 /* Access the serial operations for a device */
 #define serial_get_ops(dev)    ((struct dm_serial_ops *)(dev)->driver->ops)
 
+/**
+ * serial_getconfig() - Get the uart configuration
+ * (parity, 5/6/7/8 bits word length, stop bits)
+ *
+ * Get a current config for this device.
+ *
+ * @dev: Device pointer
+ * @serial_config: Returns config information (see SERIAL_... above)
+ * @return 0 if OK, -ve on error
+ */
+int serial_getconfig(struct udevice *dev, uint *config);
+
+/**
+ * serial_setconfig() - Set up the uart configuration
+ * (parity, 5/6/7/8 bits word length, stop bits)
+ *
+ * Set up a new config for this device.
+ *
+ * @dev: Device pointer
+ * @serial_config: number of bits, parity and number of stopbits to use
+ * @return 0 if OK, -ve on error
+ */
+int serial_setconfig(struct udevice *dev, uint config);
+
+/**
+ * serial_getinfo() - Get serial device information
+ *
+ * @dev: Device pointer
+ * @info: struct serial_device_info to fill
+ * @return 0 if OK, -ve on error
+ */
+int serial_getinfo(struct udevice *dev, struct serial_device_info *info);
+
 void atmel_serial_initialize(void);
 void mcf_serial_initialize(void);
 void mpc85xx_serial_initialize(void);
-void mpc8xx_serial_initialize(void);
 void mxc_serial_initialize(void);
 void ns16550_serial_initialize(void);
 void pl01x_serial_initialize(void);