From 531716e1710083f91d9fa351f89d18e271b5c577 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Sat, 13 Sep 2003 19:01:12 +0000
Subject: =?UTF-8?q?*=20Patch=20by=20David=20M=FCller,=2013=20Sep=202003:?=
 =?UTF-8?q?=20=20=20various=20changes=20to=20VCMA9=20board=20specific=20fi?=
 =?UTF-8?q?les?=
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* Add I2C support for MGT5100 / MPC5200
---
 include/configs/IceCube.h | 20 +++++++++++++++++++-
 include/configs/VCMA9.h   |  9 ++++-----
 include/mpc5xxx.h         | 29 +++++++++++++++++++++++++++++
 3 files changed, 52 insertions(+), 6 deletions(-)

(limited to 'include')

diff --git a/include/configs/IceCube.h b/include/configs/IceCube.h
index 9d914a6..c2c398c 100644
--- a/include/configs/IceCube.h
+++ b/include/configs/IceCube.h
@@ -83,7 +83,8 @@
 /*
  * Supported commands
  */
-#define CONFIG_COMMANDS		(CONFIG_CMD_DFL | ADD_PCI_CMD)
+#define CONFIG_COMMANDS		(CONFIG_CMD_DFL | ADD_PCI_CMD | \
+				 CFG_CMD_I2C | CFG_CMD_EEPROM)
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>
@@ -98,6 +99,23 @@
 /*
  * I2C configuration
  */
+#define CONFIG_HARD_I2C		1	/* I2C with hardware support */
+#define CFG_I2C_MODULE		1	/* If defined then I2C module #2 is used
+					 * otherwise I2C module #1 is used */
+#ifdef CONFIG_MPC5200
+#define CFG_I2C_SPEED		0x3D	/* 86KHz given 133MHz IPBI */
+#else
+#define CFG_I2C_SPEED		0x35	/* 86KHz given 33MHz IPBI */
+#endif
+#define CFG_I2C_SLAVE		0x7F
+
+/*
+ * EEPROM configuration
+ */
+#define CFG_I2C_EEPROM_ADDR		0x50	/* 1010000x */
+#define CFG_I2C_EEPROM_ADDR_LEN		1
+#define CFG_EEPROM_PAGE_WRITE_BITS	3
+#define CFG_EEPROM_PAGE_WRITE_DELAY_MS	35
 
 /*
  * Flash configuration
diff --git a/include/configs/VCMA9.h b/include/configs/VCMA9.h
index c0103fc..9f868f8 100644
--- a/include/configs/VCMA9.h
+++ b/include/configs/VCMA9.h
@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2002
+ * (C) Copyright 2002, 2003
  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
  * Marius Groeger <mgroeger@sysgo.de>
  * Gary Jennejohn <gj@denx.de>
@@ -160,9 +160,10 @@
 #define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size	*/
 
 #define CFG_MEMTEST_START	0x30000000	/* memtest works on	*/
-#define CFG_MEMTEST_END		0x33F80000	/* 63.5 MB in DRAM	*/
+#define CFG_MEMTEST_END		0x30F80000	/* 15.5 MB in DRAM	*/
+
 #define CFG_ALT_MEMTEST
-#define	CFG_LOAD_ADDR		0x33000000	/* default load address	*/
+#define	CFG_LOAD_ADDR		0x30800000	/* default load address	*/
 
 
 #undef  CFG_CLKS_IN_HZ		/* everything, incl board info, in Hz */
@@ -197,8 +198,6 @@
  */
 #define CONFIG_NR_DRAM_BANKS	1	   /* we have 1 bank of DRAM */
 #define PHYS_SDRAM_1		0x30000000 /* SDRAM Bank #1 */
-#define PHYS_SDRAM_1_SIZE	0x04000000 /* 64 MB */
-
 #define PHYS_FLASH_1		0x00000000 /* Flash Bank #1 */
 
 #define CFG_FLASH_BASE		PHYS_FLASH_1
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);
 
-- 
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