* Patch by Eran Liberty

  Add support for the Freescale MPC8349ADS board.

1 files changed, 104 insertions, 0 deletions

diff --git a/include/asm-ppc/i2c.h b/include/asm-ppc/i2c.h
new file mode 100644
index 0000000..e7ec9aa
--- /dev/null
+++ b/include/asm-ppc/i2c.h
@@ -0,0 +1,104 @@
+/*
+ * Freescale I2C Controller
+ *
+ * This software may be used and distributed according to the
+ * terms of the GNU Public License, Version 2, incorporated
+ * herein by reference.
+ *
+ * Copyright 2004 Freescale Semiconductor.
+ * (C) Copyright 2003, Motorola, Inc.
+ * author: Eran Liberty (liberty@freescale.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _ASM_I2C_H_
+#define _ASM_I2C_H_
+
+#include <asm/types.h>
+
+typedef struct i2c
+{
+    u8 adr;          /**< I2C slave address              */
+#define I2C_ADR	      0xFE
+#define I2C_ADR_SHIFT 1
+#define I2C_ADR_RES   ~(I2C_ADR)
+    u8 res0[3];     
+    u8 fdr;          /**< I2C frequency divider register */
+    
+#define IC2_FDR       0x3F
+#define IC2_FDR_SHIFT 0
+#define IC2_FDR_RES   ~(IC2_FDR)
+    u8 res1[3];     
+    u8 cr;           /**< I2C control redister           */
+#define I2C_CR_MEN	  0x80
+#define I2C_CR_MIEN	  0x40
+#define I2C_CR_MSTA   0x20
+#define I2C_CR_MTX    0x10
+#define I2C_CR_TXAK   0x08
+#define I2C_CR_RSTA   0x04
+#define I2C_CR_BCST   0x01
+    u8 res2[3];     
+    u8 sr;           /**< I2C status register            */
+#define I2C_SR_MCF    0x80
+#define I2C_SR_MAAS   0x40
+#define I2C_SR_MBB    0x20
+#define I2C_SR_MAL    0x10
+#define I2C_SR_BCSTM  0x08
+#define I2C_SR_SRW    0x04
+#define I2C_SR_MIF    0x02
+#define I2C_SR_RXAK   0x01
+    u8 res3[3];     
+    u8 dr;           /**< I2C data register              */
+#define I2C_DR 0xFF
+#define I2C_DR_SHIFT 0
+#define I2C_DR_RES ~(I2C_DR)
+    u8 res4[3];     
+    u8 dfsrr;        /**< I2C digital filter sampling rate register */
+#define I2C_DFSRR 0x3F
+#define I2C_DFSRR_SHIFT 0
+#define I2C_DFSRR_RES ~(I2C_DR)
+    u8 res5[3];
+    u8 res6[0xE8];     
+} i2c_t;
+
+#ifndef CFG_HZ
+#error CFG_HZ is not defined in /include/configs/${BOARD}.h
+#endif
+#define I2C_TIMEOUT (CFG_HZ/4)
+
+#ifndef CFG_IMMRBAR
+#error CFG_IMMRBAR is not defined in /include/configs/${BOARD}.h
+#endif
+
+#ifndef CFG_I2C_OFFSET
+#error CFG_I2C_OFFSET is not defined in /include/configs/${BOARD}.h
+#endif
+
+#ifdef CONFIG_MPC8349ADS
+/* 
+ * MPC8349 have two i2c bus 
+ */
+extern i2c_t * mpc8349_i2c;
+#define I2C mpc8349_i2c
+#else
+#define I2C ((i2c_t*)(CFG_IMMRBAR + CFG_I2C_OFFSET))
+#endif
+
+#define I2C_READ  1
+#define I2C_WRITE 0
+
+#endif	/* _ASM_I2C_H_ */