[U-Boot] [PATCH 1/4] blackfin: i2c: Missing the patch to define GPIO I2C pins.

Sonic Zhang sonic.adi at gmail.com
Mon Nov 18 08:12:47 CET 2013


From: Sonic Zhang <sonic.zhang at analog.com>

Signed-off-by: Sonic Zhang <sonic.zhang at analog.com>
---
 include/configs/bf533-stamp.h | 48 +++++--------------------------------------
 1 file changed, 5 insertions(+), 43 deletions(-)

diff --git a/include/configs/bf533-stamp.h b/include/configs/bf533-stamp.h
index a22c868..26a140e 100644
--- a/include/configs/bf533-stamp.h
+++ b/include/configs/bf533-stamp.h
@@ -14,6 +14,7 @@
 #define CONFIG_BFIN_CPU             bf533-0.3
 #define CONFIG_BFIN_BOOT_MODE       BFIN_BOOT_BYPASS
 
+
 /*
  * Clock Settings
  *	CCLK = (CLKIN * VCO_MULT) / CCLK_DIV
@@ -37,6 +38,7 @@
 /* Values can range from 1-15						*/
 #define CONFIG_SCLK_DIV			6 /* note: 1.2 boards can go faster */
 
+
 /*
  * Memory Settings
  */
@@ -72,42 +74,6 @@
 /* #define CONFIG_ETHADDR	02:80:ad:20:31:b8 */
 
 
-/* I2C */
-#define CONFIG_SYS_I2C
-#define CONFIG_SYS_I2C_SOFT		/* I2C bit-banged */
-#define CONFIG_SYS_I2C_SOFT_SPEED	50000
-#define CONFIG_SYS_I2C_SOFT_SLAVE	0
-/*
- * Software (bit-bang) I2C driver configuration
- */
-#define PF_SCL			PF3
-#define PF_SDA			PF2
-#define I2C_INIT		(*pFIO_DIR |=  PF_SCL); asm("ssync;")
-#define I2C_ACTIVE		(*pFIO_DIR |=  PF_SDA); \
-				*pFIO_INEN &= ~PF_SDA; asm("ssync;")
-#define I2C_TRISTATE		(*pFIO_DIR &= ~PF_SDA); \
-				*pFIO_INEN |= PF_SDA; asm("ssync;")
-#define I2C_READ		((volatile)(*pFIO_FLAG_D & PF_SDA) != 0); \
-				asm("ssync;")
-#define I2C_SDA(bit)	if (bit) { \
-				*pFIO_FLAG_S = PF_SDA; \
-				asm("ssync;"); \
-				} \
-			else	{ \
-				*pFIO_FLAG_C = PF_SDA; \
-				asm("ssync;"); \
-				}
-#define I2C_SCL(bit)	if (bit) { \
-				*pFIO_FLAG_S = PF_SCL; \
-				asm("ssync;"); \
-				} \
-			else	{ \
-				*pFIO_FLAG_C = PF_SCL; \
-				asm("ssync;"); \
-				}
-#define I2C_DELAY		udelay(5)	/* 1/4 I2C clock duration */
-
-
 /*
  * Flash Settings
  */
@@ -118,6 +84,7 @@
 #define CONFIG_SYS_MAX_FLASH_BANKS	1
 #define CONFIG_SYS_MAX_FLASH_SECT	67
 
+
 /*
  * SPI Settings
  */
@@ -165,15 +132,10 @@
 /*
  * I2C Settings
  */
-#define CONFIG_SYS_I2C_SOFT
-#ifdef CONFIG_SYS_I2C_SOFT
-#define CONFIG_SYS_I2C
+#define CONFIG_SOFT_I2C
 #define CONFIG_SOFT_I2C_GPIO_SCL GPIO_PF3
 #define CONFIG_SOFT_I2C_GPIO_SDA GPIO_PF2
-#define I2C_DELAY		udelay(5)	/* 1/4 I2C clock duration */
-#define CONFIG_SYS_I2C_SOFT_SPEED	50000
-#define CONFIG_SYS_I2C_SOFT_SLAVE	0
-#endif
+
 
 /*
  * Compact Flash / IDE / ATA Settings
-- 
1.8.2.3



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