/*
* I2C Settings
- * By default PF1 is used as SDA and PF0 as SCL on the Stamp board
*/
#define CONFIG_SOFT_I2C
-#ifdef CONFIG_SOFT_I2C
-#define PF_SCL PF0
-#define PF_SDA PF1
-#define I2C_INIT \
- do { \
- *pFIO_DIR |= PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_ACTIVE \
- do { \
- *pFIO_DIR |= PF_SDA; \
- *pFIO_INEN &= ~PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_TRISTATE \
- do { \
- *pFIO_DIR &= ~PF_SDA; \
- *pFIO_INEN |= PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_READ ((*pFIO_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SDA; \
- else \
- *pFIO_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SCL; \
- else \
- *pFIO_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
/*
/*
* I2C Settings
- * By default PF2 is used as SDA and PF3 as SCL on the Stamp board
*/
#define CONFIG_SOFT_I2C
-#ifdef CONFIG_SOFT_I2C
-#define PF_SCL PF3
-#define PF_SDA PF2
-#define I2C_INIT \
- do { \
- *pFIO_DIR |= PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_ACTIVE \
- do { \
- *pFIO_DIR |= PF_SDA; \
- *pFIO_INEN &= ~PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_TRISTATE \
- do { \
- *pFIO_DIR &= ~PF_SDA; \
- *pFIO_INEN |= PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_READ ((*pFIO_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SDA; \
- else \
- *pFIO_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SCL; \
- else \
- *pFIO_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF3
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF2
/*
* I2C Settings
*/
#define CONFIG_SOFT_I2C
-#ifdef CONFIG_SOFT_I2C
-#define PF_SCL PF0
-#define PF_SDA PF1
-#define I2C_INIT \
- do { \
- *pFIO0_DIR |= PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_ACTIVE \
- do { \
- *pFIO0_DIR |= PF_SDA; \
- *pFIO0_INEN &= ~PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_TRISTATE \
- do { \
- *pFIO0_DIR &= ~PF_SDA; \
- *pFIO0_INEN |= PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_READ ((*pFIO0_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SDA; \
- else \
- *pFIO0_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SCL; \
- else \
- *pFIO0_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
/*
# endif
# if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C)
# define CONFIG_CMD_I2C
+# define CONFIG_SOFT_I2C_READ_REPEATED_START
# endif
# ifdef CONFIG_SYS_NO_FLASH
# undef CONFIG_CMD_FLASH
* them yet. You can (and probably should) change these values!
*/
#ifdef CONFIG_SOFT_I2C
-
-#define PF_SCL PF9
-#define PF_SDA PF8
-
-#define I2C_INIT do { *pFIO_DIR |= PF_SCL; SSYNC(); } while (0)
-#define I2C_ACTIVE do { *pFIO_DIR |= PF_SDA; *pFIO_INEN &= ~PF_SDA; SSYNC(); } while (0)
-#define I2C_TRISTATE do { *pFIO_DIR &= ~PF_SDA; *pFIO_INEN |= PF_SDA; SSYNC(); } while (0)
-#define I2C_READ ((*pFIO_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SDA; \
- else \
- *pFIO_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO_FLAG_S = PF_SCL; \
- else \
- *pFIO_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF9
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF8
#define CONFIG_SYS_I2C_SPEED 50000
#define CONFIG_SYS_I2C_SLAVE 0xFE
#endif
* I2C Settings
*/
#define CONFIG_SOFT_I2C 1
-#define PF_SCL 0x1/*PF0*/
-#define PF_SDA 0x2/*PF1*/
-
-#ifdef CONFIG_SOFT_I2C
-#define I2C_INIT do { *pFIO0_DIR |= PF_SCL; SSYNC(); } while (0)
-#define I2C_ACTIVE do { *pFIO0_DIR |= PF_SDA; *pFIO0_INEN &= ~PF_SDA; SSYNC(); } while (0)
-#define I2C_TRISTATE do { *pFIO0_DIR &= ~PF_SDA; *pFIO0_INEN |= PF_SDA; SSYNC(); } while (0)
-#define I2C_READ ((*pFIO0_FLAG_D & PF_SDA) != 0)
-#define I2C_SDA(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SDA; \
- else \
- *pFIO0_FLAG_C = PF_SDA; \
- SSYNC(); \
- } while (0)
-#define I2C_SCL(bit) \
- do { \
- if (bit) \
- *pFIO0_FLAG_S = PF_SCL; \
- else \
- *pFIO0_FLAG_C = PF_SCL; \
- SSYNC(); \
- } while (0)
-#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
-
-#endif
+#define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF0
+#define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF1
/*