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-rw-r--r--include/mpc5xxx.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/mpc5xxx.h b/include/mpc5xxx.h
index 02683e3..b38d7d4 100644
--- a/include/mpc5xxx.h
+++ b/include/mpc5xxx.h
@@ -108,6 +108,9 @@
#define MPC5XXX_FEC (CFG_MBAR + 0x3000)
+#define MPC5XXX_I2C1 (CFG_MBAR + 0x3D00)
+#define MPC5XXX_I2C2 (CFG_MBAR + 0x3D40)
+
#if defined(CONFIG_MGT5100)
#define MPC5XXX_SRAM (CFG_MBAR + 0x4000)
#define MPC5XXX_SRAM_SIZE (8*1024)
@@ -197,6 +200,24 @@
#define MPC5XXX_GPT0_ENABLE (MPC5XXX_GPT + 0x0)
#define MPC5XXX_GPT0_COUNTER (MPC5XXX_GPT + 0x4)
+/* I2Cn control register bits */
+#define I2C_EN 0x80
+#define I2C_IEN 0x40
+#define I2C_STA 0x20
+#define I2C_TX 0x10
+#define I2C_TXAK 0x08
+#define I2C_RSTA 0x04
+#define I2C_INIT_MASK (I2C_EN | I2C_STA | I2C_TX | I2C_RSTA)
+
+/* I2Cn status register bits */
+#define I2C_CF 0x80
+#define I2C_AAS 0x40
+#define I2C_BB 0x20
+#define I2C_AL 0x10
+#define I2C_SRW 0x04
+#define I2C_IF 0x02
+#define I2C_RXAK 0x01
+
/* Programmable Serial Controller (PSC) status register bits */
#define PSC_SR_CDE 0x0080
#define PSC_SR_RXRDY 0x0100
@@ -505,6 +526,14 @@ struct mpc5xxx_sdma {
volatile u32 EU37; /* SDMA + 0xfc */
};
+struct mpc5xxx_i2c {
+ volatile u32 madr; /* I2Cn + 0x00 */
+ volatile u32 mfdr; /* I2Cn + 0x04 */
+ volatile u32 mcr; /* I2Cn + 0x08 */
+ volatile u32 msr; /* I2Cn + 0x0C */
+ volatile u32 mdr; /* I2Cn + 0x10 */
+};
+
/* function prototypes */
void loadtask(int basetask, int tasks);