New default, weak i2c_get_bus_speed() and i2c_set_bus_speed() functions
replace a number of architecture-specific implementations.
Also, providing default functions will allow all boards to enable
CONFIG_I2C_CMD_TREE. This was previously not possible since the
tree-form of the i2c command provides the ability to display and modify
the i2c bus speed which requires i2c_[set|get]_bus_speed() to be
present.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
static int
mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[]);
static int
mod_i2c_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[]);
+/* TODO: Implement architecture-specific get/set functions */
+unsigned int __def_i2c_get_bus_speed(void)
+{
+ return CONFIG_SYS_I2C_SPEED;
+}
+unsigned int i2c_get_bus_speed(void)
+ __attribute__((weak, alias("__def_i2c_get_bus_speed")));
+
+int __def_i2c_set_bus_speed(unsigned int speed)
+{
+ if (speed != CONFIG_SYS_I2C_SPEED)
+ return -1;
+
+ return 0;
+}
+int i2c_set_bus_speed(unsigned int)
+ __attribute__((weak, alias("__def_i2c_set_bus_speed")));
+
/*
* Syntax:
* imd {i2c_chip} {addr}{.0, .1, .2} {len}
/*
* Syntax:
* imd {i2c_chip} {addr}{.0, .1, .2} {len}
-int i2c_set_bus_speed(unsigned int speed)
-{
- return -1;
-}
-
-unsigned int i2c_get_bus_speed(void)
-{
- return CONFIG_SYS_I2C_SPEED;
-}
-
#endif /* CONFIG_HARD_I2C */
#endif /* CONFIG_HARD_I2C */
-/* TODO */
-unsigned int i2c_get_bus_speed (void)
-{
- return -1;
-}
-
-int i2c_set_bus_speed (unsigned int speed)
-{
- if (speed != CONFIG_SYS_I2C_SPEED)
- return -1;
-
- return 0;
-}
-
#endif /* CONFIG_HARD_I2C */
#endif /* CONFIG_HARD_I2C */
-/* TODO: add 100/400k switching */
-unsigned int i2c_get_bus_speed(void)
-{
- return CONFIG_SYS_I2C_SPEED;
-}
-
-int i2c_set_bus_speed(unsigned int speed)
-{
- if (speed != CONFIG_SYS_I2C_SPEED)
- return -1;
-
- return 0;
-}
#endif /* CONFIG_I2C_MULTI_BUS */
#endif /* CONFIG_HARD_I2C */
#endif /* CONFIG_I2C_MULTI_BUS */
#endif /* CONFIG_HARD_I2C */
return 0;
}
#endif /* CONFIG_I2C_MULTI_BUS */
return 0;
}
#endif /* CONFIG_I2C_MULTI_BUS */
-
-/* TODO: add 100/400k switching */
-unsigned int i2c_get_bus_speed(void)
-{
- return CONFIG_SYS_I2C_SPEED;
-}
-
-int i2c_set_bus_speed(unsigned int speed)
-{
- if (speed != CONFIG_SYS_I2C_SPEED)
- return -1;
-
- return 0;
-}
#endif /* CONFIG_HARD_I2C */
#endif /* CONFIG_HARD_I2C */
-/* TODO: add 100/400k switching */
-unsigned int i2c_get_bus_speed(void)
-{
- return CONFIG_SYS_I2C_SPEED;
-}
-
-int i2c_set_bus_speed(unsigned int speed)
-{
- if (speed != CONFIG_SYS_I2C_SPEED)
- return -1;
-
- return 0;
-}
-
/*-----------------------------------------------------------------------
* if ack == I2C_ACK, ACK the byte so can continue reading, else
* send I2C_NOACK to end the read.
/*-----------------------------------------------------------------------
* if ack == I2C_ACK, ACK the byte so can continue reading, else
* send I2C_NOACK to end the read.