From b2001f273fcb34d0f2ca43a9b01a24e5c50da6cd Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Sat, 20 Dec 2003 22:45:10 +0000
Subject: [PATCH] * Fix IceCube CLKIN configuration (it's 33.000000MHz)

* Add new configuration for IceCube board with DDR memory

* Update TRAB memory configurations
---
 CHANGELOG                 |  6 +++++
 Makefile                  | 18 ++++++++++---
 board/icecube/icecube.c   | 54 +++++++++++++++++++++++++++++++++++++++
 include/configs/IceCube.h | 19 +++++++++++++-
 include/configs/trab.h    | 11 +++++---
 5 files changed, 100 insertions(+), 8 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index 18f7229d3a..7b2efdcd7e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,6 +2,12 @@
 Changes since U-Boot 1.0.0:
 ======================================================================
 
+* Fix IceCube CLKIN configuration (it's 33.000000MHz)
+
+* Add new configuration for IceCube board with DDR memory
+
+* Update TRAB memory configurations
+
 * Add JFFS2 support for INCA-IP board
 
 * Patch by Bill Hargen, 09 Dec 2003:
diff --git a/Makefile b/Makefile
index 6af2665307..48788aff2d 100644
--- a/Makefile
+++ b/Makefile
@@ -204,6 +204,8 @@ cmi_mpc5xx_config:	unconfig
 MPC5200LITE_config		\
 MPC5200LITE_LOWBOOT_config	\
 MPC5200LITE_LOWBOOT08_config	\
+icecube_5200_DDR_config		\
+IceCube_5200_DDR_config		\
 icecube_5200_config		\
 IceCube_5200_config		\
 IceCube_5100_config:		unconfig
@@ -220,6 +222,10 @@ IceCube_5100_config:		unconfig
 		{ echo "#define CONFIG_MPC5200"		>>include/config.h ; \
 		  echo "... with MPC5200 processor" ; \
 		}
+	@[ -z "$(findstring DDR,$@)" ] || \
+		{ echo "#define CONFIG_MPC5200_DDR"	>>include/config.h ; \
+		  echo "... DDR memory revision" ; \
+		}
 	@[ -z "$(findstring 5100,$@)" ] || \
 		{ echo "#define CONFIG_MGT5100"		>>include/config.h ; \
 		  echo "... with MGT5100 processor" ; \
@@ -895,23 +901,27 @@ smdk2400_config	:	unconfig
 smdk2410_config	:	unconfig
 	@./mkconfig $(@:_config=) arm arm920t smdk2410
 
+# TRAB default configuration:	8 MB Flash, 32 MB RAM
 trab_config \
 trab_bigram_config \
 trab_bigflash_config \
 trab_old_config:	unconfig
 	@ >include/config.h
 	@[ -z "$(findstring _bigram,$@)" ] || \
-		{ echo "#define CONFIG_FLASH_8MB" >>include/config.h ; \
+		{ echo "#define CONFIG_FLASH_8MB"  >>include/config.h ; \
+		  echo "#define CONFIG_RAM_32MB"   >>include/config.h ; \
 		  echo "... with 8 MB Flash, 32 MB RAM" ; \
 		}
 	@[ -z "$(findstring _bigflash,$@)" ] || \
-		{ echo "#define CONFIG_RAM_16MB" >>include/config.h ; \
+		{ echo "#define CONFIG_FLASH_16MB" >>include/config.h ; \
+		  echo "#define CONFIG_RAM_16MB"   >>include/config.h ; \
 		  echo "... with 16 MB Flash, 16 MB RAM" ; \
 		  echo "TEXT_BASE = 0x0CF40000" >board/trab/config.tmp ; \
 		}
 	@[ -z "$(findstring _old,$@)" ] || \
-		{ echo "#define CONFIG_OLD_VERSION" >>include/config.h ; \
-		  echo "... with small memory configuration" ; \
+		{ echo "#define CONFIG_FLASH_8MB"  >>include/config.h ; \
+		  echo "#define CONFIG_RAM_16MB"   >>include/config.h ; \
+		  echo "... with 8 MB Flash, 16 MB RAM" ; \
 		  echo "TEXT_BASE = 0x0CF40000" >board/trab/config.tmp ; \
 		}
 	@./mkconfig -a $(call xtract_trab,$@) arm arm920t trab
diff --git a/board/icecube/icecube.c b/board/icecube/icecube.c
index 1b69d1376f..e0adec377e 100644
--- a/board/icecube/icecube.c
+++ b/board/icecube/icecube.c
@@ -68,6 +68,24 @@ static void sdram_start (int hi_addr)
 {
 	long hi_addr_bit = hi_addr ? 0x01000000 : 0;
 
+#ifdef CONFIG_MPC5200_DDR
+	/* unlock mode register */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0xf05f0f00 | hi_addr_bit;
+	/* precharge all banks */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0xf05f0f02 | hi_addr_bit;
+	/* set mode register: extended mode */
+	*(vu_long *)MPC5XXX_SDRAM_MODE = 0x40090000;
+	/* set mode register: reset DLL */
+	*(vu_long *)MPC5XXX_SDRAM_MODE = 0x058d0000;
+	/* precharge all banks */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0xf05f0f02 | hi_addr_bit;
+	/* auto refresh */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0xf05f0f04 | hi_addr_bit;
+	/* set mode register */
+	*(vu_long *)MPC5XXX_SDRAM_MODE = 0x018d0000;
+	/* normal operation */
+	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0x705f0f00 | hi_addr_bit;
+#else
 	/* unlock mode register */
 	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0xd04f0000 | hi_addr_bit;
 	/* precharge all banks */
@@ -86,12 +104,16 @@ static void sdram_start (int hi_addr)
 	*(vu_long *)MPC5XXX_SDRAM_MODE = 0x008d0000;
 	/* normal operation */
 	*(vu_long *)MPC5XXX_SDRAM_CTRL = 0x504f0000 | hi_addr_bit;
+#endif
 }
 #endif
 
 long int initdram (int board_type)
 {
 	ulong dramsize = 0;
+#ifdef CONFIG_MPC5200_DDR
+	ulong dramsize2 = 0;
+#endif
 #ifndef CFG_RAMBOOT
 	ulong test1, test2;
 
@@ -100,9 +122,18 @@ long int initdram (int board_type)
 	*(vu_long *)MPC5XXX_SDRAM_CS0CFG = 0x0000001e;/* 2G at 0x0 */
 	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = 0x80000000;/* disabled */
 
+#ifdef CONFIG_MPC5200_DDR
+	/* setup config registers */
+	*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = 0x73722930;
+	*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = 0x47770000;
+	
+	/* set tap delay to 0x10 */
+	*(vu_long *)MPC5XXX_CDM_PORCFG = 0x10000000;
+#else
 	/* setup config registers */
 	*(vu_long *)MPC5XXX_SDRAM_CONFIG1 = 0xc2233a00;
 	*(vu_long *)MPC5XXX_SDRAM_CONFIG2 = 0x88b70004;
+#endif
 
 #elif defined(CONFIG_MGT5100)
 	*(vu_long *)MPC5XXX_SDRAM_START = 0x00000000;
@@ -129,7 +160,23 @@ long int initdram (int board_type)
 #if defined(CONFIG_MPC5200)
 	*(vu_long *)MPC5XXX_SDRAM_CS0CFG =
 		(0x13 + __builtin_ffs(dramsize >> 20) - 1);
+#ifdef CONFIG_MPC5200_DDR
+	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize + 0x0000001e;/* 2G */
+	sdram_start(0);
+	test1 = dram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+	sdram_start(1);
+	test2 = dram_size((ulong *)(CFG_SDRAM_BASE + dramsize), 0x80000000);
+	if (test1 > test2) {
+		sdram_start(0);
+		dramsize2 = test1;
+	} else {
+		dramsize2 = test2;
+	}
+	*(vu_long *)MPC5XXX_SDRAM_CS1CFG =
+		dramsize + (0x13 + __builtin_ffs(dramsize2 >> 20) - 1);
+#else
 	*(vu_long *)MPC5XXX_SDRAM_CS1CFG = dramsize; /* disabled */
+#endif
 #elif defined(CONFIG_MGT5100)
 	*(vu_long *)MPC5XXX_SDRAM_STOP = ((dramsize - 1) >> 15);
 #endif
@@ -140,8 +187,15 @@ long int initdram (int board_type)
 	dramsize = ((*(vu_long *)MPC5XXX_SDRAM_STOP + 1) << 15);
 #else
 	dramsize = ((1 << (*(vu_long *)MPC5XXX_SDRAM_CS0CFG - 0x13)) << 20);
+#ifdef CONFIG_MPC5200_DDR
+	dramsize2 = ((1 << (*(vu_long *)MPC5XXX_SDRAM_CS1CFG - 0x13)) << 20);
+#endif
 #endif
 #endif /* CFG_RAMBOOT */
+
+#ifdef CONFIG_MPC5200_DDR
+	dramsize += dramsize2;
+#endif
 	/* return total ram size */
 	return dramsize;
 }
diff --git a/include/configs/IceCube.h b/include/configs/IceCube.h
index f371ba668d..2f0a875838 100644
--- a/include/configs/IceCube.h
+++ b/include/configs/IceCube.h
@@ -32,7 +32,7 @@
 #define CONFIG_MPC5XXX		1	/* This is an MPC5xxx CPU */
 #define CONFIG_ICECUBE		1	/* ... on IceCube board */
 
-#define CFG_MPC5XXX_CLKIN	33333333 /* ... running at 33MHz */
+#define CFG_MPC5XXX_CLKIN	33000000 /* ... running at 33.000000MHz */
 
 #define BOOTFLAG_COLD		0x01	/* Normal Power-On: Boot from FLASH  */
 #define BOOTFLAG_WARM		0x02	/* Software reboot	     */
@@ -219,7 +219,11 @@
 /*
  * GPIO configuration
  */
+#ifdef CONFIG_MPC5200_DDR
+#define CFG_GPS_PORT_CONFIG	0x90000004
+#else
 #define CFG_GPS_PORT_CONFIG	0x10000004
+#endif
 
 /*
  * Miscellaneous configurable options
@@ -253,12 +257,25 @@
 #define CFG_HID0_FINAL		0
 #endif
 
+#ifdef CONFIG_MPC5200_DDR
+
+#define CFG_BOOTCS_START	0xff800000
+#define CFG_BOOTCS_SIZE		0x00800000
+#define CFG_BOOTCS_CFG		0x00047801
+#define CFG_CS1_START		0xff000000
+#define CFG_CS1_SIZE		0x00800000
+#define CFG_CS1_CFG		0x00047800
+
+#else /* !CONFIG_MPC5200_DDR */
+
 #define CFG_BOOTCS_START	CFG_FLASH_BASE
 #define CFG_BOOTCS_SIZE		CFG_FLASH_SIZE
 #define CFG_BOOTCS_CFG		0x00047801
 #define CFG_CS0_START		CFG_FLASH_BASE
 #define CFG_CS0_SIZE		CFG_FLASH_SIZE
 
+#endif /* CONFIG_MPC5200_DDR */
+
 #define CFG_CS_BURST		0x00000000
 #define CFG_CS_DEADCYCLE	0x33333333
 
diff --git a/include/configs/trab.h b/include/configs/trab.h
index 95ee37e2a7..e9ba90f2aa 100644
--- a/include/configs/trab.h
+++ b/include/configs/trab.h
@@ -26,10 +26,15 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
-#ifdef CONFIG_OLD_VERSION		/* Old configuration:		*/
-#define	CONFIG_RAM_16MB			/*	16 MB SDRAM		*/
+/*
+ * Default configuration is with 8 MB Flash, 32 MB RAM
+ */
+#if (!defined(CONFIG_FLASH_8MB)) && (!defined(CONFIG_FLASH_16MB))
+# define CONFIG_FLASH_8MB	/*  8 MB Flash	*/
+#endif
+#if (!defined(CONFIG_RAM_16MB)) && (!defined(CONFIG_RAM_32MB))
+# define CONFIG_RAM_32MB	/* 32 MB SDRAM	*/
 #endif
-#define CONFIG_FLASH_8MB		/*	 8 MB Flash		*/
 
 /*
  * If we are developing, we might want to start armboot from ram
-- 
2.30.2