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authorHeiko Schocher <hs@denx.de>2008-10-15 09:36:03 +0200
committerWolfgang Denk <wd@denx.de>2008-10-18 21:54:01 +0200
commit9661bf9d120f760238b2a073b84f2baf05010057 (patch)
treec6ff961aff45582a645afea25d31b5e9ef5bc84d /include/configs/mgcoge.h
parent98aed379586a155292efbf3209356836584b601c (diff)
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mgcoge, mgsuvd: add I2C support.
Signed-off-by: Heiko Schocher <hs@denx.de>
Diffstat (limited to 'include/configs/mgcoge.h')
-rw-r--r--include/configs/mgcoge.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/configs/mgcoge.h b/include/configs/mgcoge.h
index 23af3ec..159eeae 100644
--- a/include/configs/mgcoge.h
+++ b/include/configs/mgcoge.h
@@ -82,6 +82,7 @@
#include <config_cmd_default.h>
#define CONFIG_CMD_ECHO
+#define CONFIG_CMD_I2C
#define CONFIG_CMD_IMMAP
#define CONFIG_CMD_MII
#define CONFIG_CMD_PING
@@ -176,6 +177,30 @@
#define CONFIG_ENV_ADDR (CFG_MONITOR_BASE + CFG_MONITOR_LEN)
#endif /* CONFIG_ENV_IS_IN_FLASH */
+/* enable I2C and select the hardware/software driver */
+#undef CONFIG_HARD_I2C /* I2C with hardware support */
+#define CONFIG_SOFT_I2C 1 /* I2C bit-banged */
+#define CFG_I2C_SPEED 50000 /* I2C speed and slave address */
+#define CFG_I2C_SLAVE 0x7F
+
+/*
+ * Software (bit-bang) I2C driver configuration
+ */
+
+#define I2C_PORT 3 /* Port A=0, B=1, C=2, D=3 */
+#define I2C_ACTIVE (iop->pdir |= 0x00010000)
+#define I2C_TRISTATE (iop->pdir &= ~0x00010000)
+#define I2C_READ ((iop->pdat & 0x00010000) != 0)
+#define I2C_SDA(bit) if(bit) iop->pdat |= 0x00010000; \
+ else iop->pdat &= ~0x00010000
+#define I2C_SCL(bit) if(bit) iop->pdat |= 0x00020000; \
+ else iop->pdat &= ~0x00020000
+#define I2C_DELAY udelay(5) /* 1/4 I2C clock duration */
+
+#define CONFIG_I2C_MULTI_BUS 1
+#define CONFIG_I2C_CMD_TREE 1
+#define CFG_MAX_I2C_BUS 2
+
#define CFG_IMMR 0xF0000000
#define CFG_INIT_RAM_ADDR CFG_IMMR