mpc8641: Change 32-bit memory map

The memory map on the 8641hpcn is modified to look more like
the 85xx boards; this is a step towards a more standardized
layout going forward. As part of this change, we now relocate
the flash.

The regions for some of the mappings were far larger than they
needed to be.  I have reduced the mappings to match the
actual sizes supported by the hardware.

In addition I have removed the comments at the head
of the BAT blocks in the config file, rather than updating
them.  These get horribly out of date, and it's a simple
matter to look at the defines to see what they are set to
since everything is right here in the same file.

Documentation has been changed to reflect the new map, as this
change is user visible, and affects the OS which runs post-uboot.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>

1 files changed, 39 insertions, 37 deletions

diff --git a/include/configs/MPC8641HPCN.h b/include/configs/MPC8641HPCN.h
index 4925057..ec3d112 100644
--- a/include/configs/MPC8641HPCN.h
+++ b/include/configs/MPC8641HPCN.h
@@ -96,7 +96,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
  * actual resources get mapped (not physical addresses)
  */
 #define CONFIG_SYS_CCSRBAR_DEFAULT	0xff700000	/* CCSRBAR Default */
-#define CONFIG_SYS_CCSRBAR		0xf8000000	/* relocated CCSRBAR */
+#define CONFIG_SYS_CCSRBAR		0xffe00000	/* relocated CCSRBAR */
 #define CONFIG_SYS_IMMR		CONFIG_SYS_CCSRBAR	/* PQII uses CONFIG_SYS_IMMR */
 
 #define CONFIG_SYS_PCI1_ADDR		(CONFIG_SYS_CCSRBAR+0x8000)
@@ -159,7 +159,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_I2C_EEPROM_ADDR     0x57
 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN 1
 
-#define CONFIG_SYS_FLASH_BASE		0xff800000     /* start of FLASH 8M */
+#define CONFIG_SYS_FLASH_BASE		0xef800000     /* start of FLASH 8M */
 
 #define CONFIG_SYS_FLASH_BANKS_LIST {CONFIG_SYS_FLASH_BASE}
 
@@ -172,15 +172,22 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 
 #define CONFIG_SYS_BR2_PRELIM		(BR_PHYS_ADDR(CF_BASE)		\
 					 | 0x00001001)	/* port size 16bit */
-#define CONFIG_SYS_OR2_PRELIM		0xfff06ff7	/* 1MB Compact Flash area*/
+#define CONFIG_SYS_OR2_PRELIM		0xffffeff7	/* 32k Compact Flash */
 
 #define CONFIG_SYS_BR3_PRELIM		(BR_PHYS_ADDR(PIXIS_BASE)	\
 					 | 0x00000801) /* port size 8bit */
-#define CONFIG_SYS_OR3_PRELIM		0xfff06ff7	/* 1MB PIXIS area*/
+#define CONFIG_SYS_OR3_PRELIM		0xffffeff7	/* 32k PIXIS area*/
 
+/*
+ * The LBC_BASE is the base of the region that contains the PIXIS and the CF.
+ * The PIXIS and CF by themselves aren't large enough to take up the 128k
+ * required for the smallest BAT mapping, so there's a 64k hole.
+ */
+#define CONFIG_SYS_LBC_BASE		0xffde0000
 
 #define CONFIG_FSL_PIXIS	1	/* use common PIXIS code */
-#define PIXIS_BASE	(CONFIG_SYS_CCSRBAR + 0x00100000) /* PIXIS registers */
+#define PIXIS_BASE		(CONFIG_SYS_LBC_BASE + 0x00010000)
+#define PIXIS_SIZE		0x00008000	/* 32k */
 #define PIXIS_ID		0x0	/* Board ID at offset 0 */
 #define PIXIS_VER		0x1	/* Board version at offset 1 */
 #define PIXIS_PVER		0x2	/* PIXIS FPGA version at offset 2 */
@@ -198,7 +205,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_PIXIS_VBOOT_MASK	0x40	/* Reset altbank mask*/
 
 /* Compact flash shares a BAT with PIXIS; make sure they're contiguous */
-#define CF_BASE			(PIXIS_BASE + 0x00100000)
+#define CF_BASE			(PIXIS_BASE + PIXIS_SIZE)
 
 #define CONFIG_SYS_MAX_FLASH_BANKS	1		/* number of banks */
 #define CONFIG_SYS_MAX_FLASH_SECT	128		/* sectors per device */
@@ -287,7 +294,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 /*
  * RapidIO MMU
  */
-#define CONFIG_SYS_RIO_MEM_BASE	0xc0000000	/* base address */
+#define CONFIG_SYS_RIO_MEM_BASE	0x80000000	/* base address */
 #define CONFIG_SYS_RIO_MEM_PHYS	CONFIG_SYS_RIO_MEM_BASE
 #define CONFIG_SYS_RIO_MEM_SIZE	0x20000000	/* 128M */
 
@@ -299,8 +306,8 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_PCI1_MEM_PHYS	CONFIG_SYS_PCI1_MEM_BASE
 #define CONFIG_SYS_PCI1_MEM_SIZE	0x20000000	/* 512M */
 #define CONFIG_SYS_PCI1_IO_BASE	0x00000000
-#define CONFIG_SYS_PCI1_IO_PHYS	0xe2000000
-#define CONFIG_SYS_PCI1_IO_SIZE	0x00100000	/* 1M */
+#define CONFIG_SYS_PCI1_IO_PHYS	0xffc00000
+#define CONFIG_SYS_PCI1_IO_SIZE	0x00010000	/* 64K */
 
 /* For RTL8139 */
 #define KSEG1ADDR(x)		({u32 _x=le32_to_cpu(*(u32 *)(x)); (&_x);})
@@ -313,7 +320,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_PCI2_IO_BASE	0x00000000
 #define CONFIG_SYS_PCI2_IO_PHYS	(CONFIG_SYS_PCI1_IO_PHYS \
 				 + CONFIG_SYS_PCI1_IO_SIZE)
-#define CONFIG_SYS_PCI2_IO_SIZE	0x00100000	/* 1M */
+#define CONFIG_SYS_PCI2_IO_SIZE	CONFIG_SYS_PCI1_IO_SIZE
 
 #if defined(CONFIG_PCI)
 
@@ -413,8 +420,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #endif	/* CONFIG_TSEC_ENET */
 
 /*
- * BAT0		2G     Cacheable, non-guarded
- * 0x0000_0000	2G     DDR
+ * BAT0		DDR
  */
 #define CONFIG_SYS_DBAT0L	(BATL_PP_RW | BATL_MEMCOHERENCE)
 #define CONFIG_SYS_DBAT0U	(BATU_BL_2G | BATU_VS | BATU_VP)
@@ -422,22 +428,20 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_IBAT0U	CONFIG_SYS_DBAT0U
 
 /*
- * BAT1		unused
+ * BAT1		LBC (PIXIS/CF)
  */
-#define CONFIG_SYS_DBAT1L	0
-#define CONFIG_SYS_DBAT1U	0
-#define CONFIG_SYS_IBAT1L	0
-#define CONFIG_SYS_IBAT1U	0
+#define CONFIG_SYS_DBAT1L	(CONFIG_SYS_LBC_BASE | BATL_PP_RW \
+				 | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
+#define CONFIG_SYS_DBAT1U	(CONFIG_SYS_LBC_BASE | BATU_BL_128K \
+				 | BATU_VS | BATU_VP)
+#define CONFIG_SYS_IBAT1L	(CONFIG_SYS_LBC_BASE | BATL_PP_RW \
+				 | BATL_MEMCOHERENCE)
+#define CONFIG_SYS_IBAT1U	CONFIG_SYS_DBAT1U
 
 /* if CONFIG_PCI:
- * BAT2		1G     Cache-inhibited, guarded
- * 0x8000_0000	512M   PCI-Express 1 Memory
- * 0xa000_0000	512M   PCI-Express 2 Memory
- *	Changed it for operating from 0xd0000000
- *
+ * BAT2		PCI1 and PCI1 MEM
  * if CONFIG_RIO
- * BAT2		512M   Cache-inhibited, guarded
- * 0xc000_0000	512M   RapidIO Memory
+ * BAT2		Rapidio Memory
  */
 #ifdef CONFIG_PCI
 #define CONFIG_SYS_DBAT2L	(CONFIG_SYS_PCI1_MEM_PHYS | BATL_PP_RW \
@@ -456,30 +460,27 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #endif
 
 /*
- * BAT3		4M     Cache-inhibited, guarded
- * 0xf800_0000	4M     CCSR
+ * BAT3		CCSR Space
  */
 #define CONFIG_SYS_DBAT3L	( CONFIG_SYS_CCSRBAR | BATL_PP_RW \
 			| BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
-#define CONFIG_SYS_DBAT3U	(CONFIG_SYS_CCSRBAR | BATU_BL_4M | BATU_VS | BATU_VP)
+#define CONFIG_SYS_DBAT3U	(CONFIG_SYS_CCSRBAR | BATU_BL_1M | BATU_VS \
+				 | BATU_VP)
 #define CONFIG_SYS_IBAT3L	(CONFIG_SYS_CCSRBAR | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CONFIG_SYS_IBAT3U	CONFIG_SYS_DBAT3U
 
 /*
- * BAT4		32M    Cache-inhibited, guarded
- * 0xe200_0000	16M    PCI-Express 1 I/O
- * 0xe300_0000	16M    PCI-Express 2 I/0
- *    Note that this is at 0xe0000000
+ * BAT4		PCI1_IO and PCI2_IO
  */
 #define CONFIG_SYS_DBAT4L	( CONFIG_SYS_PCI1_IO_PHYS | BATL_PP_RW \
 			| BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
-#define CONFIG_SYS_DBAT4U	(CONFIG_SYS_PCI1_IO_PHYS | BATU_BL_32M | BATU_VS | BATU_VP)
+#define CONFIG_SYS_DBAT4U	(CONFIG_SYS_PCI1_IO_PHYS | BATU_BL_128K \
+				 | BATU_VS | BATU_VP)
 #define CONFIG_SYS_IBAT4L	(CONFIG_SYS_PCI1_IO_PHYS | BATL_PP_RW | BATL_CACHEINHIBIT)
 #define CONFIG_SYS_IBAT4U	CONFIG_SYS_DBAT4U
 
 /*
- * BAT5		128K   Cacheable, non-guarded
- * 0xe401_0000	128K   Init RAM for stack in the CPU DCache (no backing memory)
+ * BAT5		Init RAM for stack in the CPU DCache (no backing memory)
  */
 #define CONFIG_SYS_DBAT5L	(CONFIG_SYS_INIT_RAM_ADDR | BATL_PP_RW | BATL_MEMCOHERENCE)
 #define CONFIG_SYS_DBAT5U	(CONFIG_SYS_INIT_RAM_ADDR | BATU_BL_128K | BATU_VS | BATU_VP)
@@ -487,8 +488,7 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 #define CONFIG_SYS_IBAT5U	CONFIG_SYS_DBAT5U
 
 /*
- * BAT6		8M    Cache-inhibited, guarded
- * 0xff80_0000	8M    FLASH
+ * BAT6		FLASH
  */
 #define CONFIG_SYS_DBAT6L	(CONFIG_SYS_FLASH_BASE | BATL_PP_RW \
 				 | BATL_CACHEINHIBIT | BATL_GUARDEDSTORAGE)
@@ -506,7 +506,9 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
 				 | BATL_MEMCOHERENCE)
 #define CONFIG_SYS_IBAT6U_EARLY	CONFIG_SYS_DBAT6U_EARLY
 
-/* Leave BAT7 free here - it is used for various things later */
+/*
+ * BAT7		FREE - used later for tmp mappings
+ */
 #define CONFIG_SYS_DBAT7L 0x00000000
 #define CONFIG_SYS_DBAT7U 0x00000000
 #define CONFIG_SYS_IBAT7L 0x00000000