[U-Boot] [PATCH 2/2] Blackfin: bf533/bf561 boards: convert to new soft gpio i2c code

Mike Frysinger vapier at gentoo.org
Mon Jul 5 10:50:09 CEST 2010 

Use the new common gpio framework to simplify and unify the soft i2c
configuration settings.

Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
note: i can run this through the Blackfin tree if you want

 include/configs/bf533-ezkit.h |   43 +---------------------------------------
 include/configs/bf533-stamp.h |   43 +---------------------------------------
 include/configs/bf561-ezkit.h |   42 +--------------------------------------
 include/configs/blackstamp.h  |   28 +------------------------
 include/configs/ibf-dsp561.h  |   29 +-------------------------
 5 files changed, 10 insertions(+), 175 deletions(-)

diff --git a/include/configs/bf533-ezkit.h b/include/configs/bf533-ezkit.h
index 37a7059..95d3afa 100644
--- a/include/configs/bf533-ezkit.h
+++ b/include/configs/bf533-ezkit.h
@@ -94,49 +94,10 @@
 
 /*
  * 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
 
 
 /*
diff --git a/include/configs/bf533-stamp.h b/include/configs/bf533-stamp.h
index 02c8bc3..f39bfee 100644
--- a/include/configs/bf533-stamp.h
+++ b/include/configs/bf533-stamp.h
@@ -138,49 +138,10 @@
 
 /*
  * 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
 
 
 /*
diff --git a/include/configs/bf561-ezkit.h b/include/configs/bf561-ezkit.h
index 036bfe4..4e293b5 100644
--- a/include/configs/bf561-ezkit.h
+++ b/include/configs/bf561-ezkit.h
@@ -112,46 +112,8 @@
  * 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
 
 
 /*
diff --git a/include/configs/blackstamp.h b/include/configs/blackstamp.h
index aa33933..85f08ea 100644
--- a/include/configs/blackstamp.h
+++ b/include/configs/blackstamp.h
@@ -206,32 +206,8 @@
  * 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
diff --git a/include/configs/ibf-dsp561.h b/include/configs/ibf-dsp561.h
index 2c0a263..53b5197 100644
--- a/include/configs/ibf-dsp561.h
+++ b/include/configs/ibf-dsp561.h
@@ -112,33 +112,8 @@
  * 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
 
 
 /*
-- 
1.7.1.1

More information about the U-Boot mailing list