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authorDirk Behme <dirk.behme@googlemail.com>2009-11-02 20:36:26 +0100
committerHeiko Schocher <hs@denx.de>2009-11-16 07:25:15 +0100
commit1d2e96de56cc57e25a19bc40d297f36c4c4443a2 (patch)
tree0a372d1635faa3f2486f88fb70b0c221c83a376c /include
parent06f43286c6354aaab0103615e83893512f86eee7 (diff)
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OMAP2/3: I2C: Add support for second and third bus
Add support to use second and third I2C bus, too. Bus 0 is still the default, but by calling i2c_set_bus_num(1/2) before doing I2C accesses, code can switch to bus 1 and 2, too. Don't forget to switch back afterwards, then. Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
Diffstat (limited to 'include')
-rw-r--r--include/asm-arm/arch-omap24xx/i2c.h53
-rw-r--r--include/asm-arm/arch-omap3/i2c.h49
2 files changed, 71 insertions, 31 deletions
diff --git a/include/asm-arm/arch-omap24xx/i2c.h b/include/asm-arm/arch-omap24xx/i2c.h
index 44db7a2..19046aa 100644
--- a/include/asm-arm/arch-omap24xx/i2c.h
+++ b/include/asm-arm/arch-omap24xx/i2c.h
@@ -23,24 +23,45 @@
#ifndef _OMAP24XX_I2C_H_
#define _OMAP24XX_I2C_H_
-#define I2C_BASE 0x48070000
+#define I2C_BASE1 0x48070000
#define I2C_BASE2 0x48072000 /* nothing hooked up on h4 */
-#define I2C_REV (I2C_BASE + 0x00)
-#define I2C_IE (I2C_BASE + 0x04)
-#define I2C_STAT (I2C_BASE + 0x08)
-#define I2C_IV (I2C_BASE + 0x0c)
-#define I2C_BUF (I2C_BASE + 0x14)
-#define I2C_CNT (I2C_BASE + 0x18)
-#define I2C_DATA (I2C_BASE + 0x1c)
-#define I2C_SYSC (I2C_BASE + 0x20)
-#define I2C_CON (I2C_BASE + 0x24)
-#define I2C_OA (I2C_BASE + 0x28)
-#define I2C_SA (I2C_BASE + 0x2c)
-#define I2C_PSC (I2C_BASE + 0x30)
-#define I2C_SCLL (I2C_BASE + 0x34)
-#define I2C_SCLH (I2C_BASE + 0x38)
-#define I2C_SYSTEST (I2C_BASE + 0x3c)
+#define I2C_DEFAULT_BASE I2C_BASE1
+
+struct i2c {
+ unsigned short rev; /* 0x00 */
+ unsigned short res1;
+ unsigned short ie; /* 0x04 */
+ unsigned short res2;
+ unsigned short stat; /* 0x08 */
+ unsigned short res3;
+ unsigned short iv; /* 0x0C */
+ unsigned short res4[3];
+ unsigned short buf; /* 0x14 */
+ unsigned short res5;
+ unsigned short cnt; /* 0x18 */
+ unsigned short res6;
+ unsigned short data; /* 0x1C */
+ unsigned short res7;
+ unsigned short sysc; /* 0x20 */
+ unsigned short res8;
+ unsigned short con; /* 0x24 */
+ unsigned short res9;
+ unsigned short oa; /* 0x28 */
+ unsigned short res10;
+ unsigned short sa; /* 0x2C */
+ unsigned short res11;
+ unsigned short psc; /* 0x30 */
+ unsigned short res12;
+ unsigned short scll; /* 0x34 */
+ unsigned short res13;
+ unsigned short sclh; /* 0x38 */
+ unsigned short res14;
+ unsigned short systest; /* 0x3c */
+ unsigned short res15;
+};
+
+#define I2C_BUS_MAX 2
/* I2C masks */
diff --git a/include/asm-arm/arch-omap3/i2c.h b/include/asm-arm/arch-omap3/i2c.h
index 8b339cc..490e03b 100644
--- a/include/asm-arm/arch-omap3/i2c.h
+++ b/include/asm-arm/arch-omap3/i2c.h
@@ -25,21 +25,40 @@
#define I2C_DEFAULT_BASE I2C_BASE1
-#define I2C_REV (I2C_DEFAULT_BASE + 0x00)
-#define I2C_IE (I2C_DEFAULT_BASE + 0x04)
-#define I2C_STAT (I2C_DEFAULT_BASE + 0x08)
-#define I2C_IV (I2C_DEFAULT_BASE + 0x0c)
-#define I2C_BUF (I2C_DEFAULT_BASE + 0x14)
-#define I2C_CNT (I2C_DEFAULT_BASE + 0x18)
-#define I2C_DATA (I2C_DEFAULT_BASE + 0x1c)
-#define I2C_SYSC (I2C_DEFAULT_BASE + 0x20)
-#define I2C_CON (I2C_DEFAULT_BASE + 0x24)
-#define I2C_OA (I2C_DEFAULT_BASE + 0x28)
-#define I2C_SA (I2C_DEFAULT_BASE + 0x2c)
-#define I2C_PSC (I2C_DEFAULT_BASE + 0x30)
-#define I2C_SCLL (I2C_DEFAULT_BASE + 0x34)
-#define I2C_SCLH (I2C_DEFAULT_BASE + 0x38)
-#define I2C_SYSTEST (I2C_DEFAULT_BASE + 0x3c)
+struct i2c {
+ unsigned short rev; /* 0x00 */
+ unsigned short res1;
+ unsigned short ie; /* 0x04 */
+ unsigned short res2;
+ unsigned short stat; /* 0x08 */
+ unsigned short res3;
+ unsigned short iv; /* 0x0C */
+ unsigned short res4[3];
+ unsigned short buf; /* 0x14 */
+ unsigned short res5;
+ unsigned short cnt; /* 0x18 */
+ unsigned short res6;
+ unsigned short data; /* 0x1C */
+ unsigned short res7;
+ unsigned short sysc; /* 0x20 */
+ unsigned short res8;
+ unsigned short con; /* 0x24 */
+ unsigned short res9;
+ unsigned short oa; /* 0x28 */
+ unsigned short res10;
+ unsigned short sa; /* 0x2C */
+ unsigned short res11;
+ unsigned short psc; /* 0x30 */
+ unsigned short res12;
+ unsigned short scll; /* 0x34 */
+ unsigned short res13;
+ unsigned short sclh; /* 0x38 */
+ unsigned short res14;
+ unsigned short systest; /* 0x3c */
+ unsigned short res15;
+};
+
+#define I2C_BUS_MAX 3
/* I2C masks */