[MTD] Replace all the Au1x mapping drivers with a simplified single driver

This driver does not have as many options but it's easier to maintain.
And, it turns out AMD never shipped boards with different flash densities.
Signed-off-by: Pete Popov <ppopov@pacbell.net>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

drivers/mtd/maps/Kconfig

 # drivers/mtd/maps/Kconfig
-# $Id: Kconfig,v 1.44 2005/02/18 11:03:45 bjd Exp $
+# $Id: Kconfig,v 1.45 2005/02/27 21:50:21 ppopov Exp $
 
 menu "Mapping drivers for chip access"
 	depends on MTD!=n
@@ -213,74 +213,11 @@ config MTD_NETtel
 	help
 	  Support for flash chips on NETtel/SecureEdge/SnapGear boards.
 
-config MTD_PB1XXX
-	tristate "Flash devices on Alchemy PB1xxx boards"
-	depends on MIPS && ( MIPS_PB1000 || MIPS_PB1100 || MIPS_PB1500 )
+config MTD_ALCHEMY
+	tristate '  AMD Alchemy Pb1xxx/Db1xxx/RDK MTD support' 
+	depends on MIPS && SOC_AU1X00
 	help
-	  Flash memory access on Alchemy Pb1000/Pb1100/Pb1500 boards
-
-config MTD_PB1XXX_BOOT
-	bool "PB1x00 boot flash device"
-	depends on MTD_PB1XXX && ( MIPS_PB1100 || MIPS_PB1500 )
-	help
-	  Use the first of the two 32MiB flash banks on Pb1100/Pb1500 board.
-	  You can say 'Y' to both this and 'MTD_PB1XXX_USER' below, to use
-	  both banks.
-
-config MTD_PB1XXX_USER
-	bool "PB1x00 user flash device"
-	depends on MTD_PB1XXX && ( MIPS_PB1100 || MIPS_PB1500 )
-	default y if MTD_PB1XX_BOOT = n
-	help
-	  Use the second of the two 32MiB flash banks on Pb1100/Pb1500 board.
-	  You can say 'Y' to both this and 'MTD_PB1XXX_BOOT' above, to use
-	  both banks.
-
-config MTD_PB1550
-	tristate "Flash devices on Alchemy PB1550 board"
-	depends on MIPS && MIPS_PB1550
-	help
-	  Flash memory access on Alchemy Pb1550 board
-
-config MTD_PB1550_BOOT
-	bool "PB1550 boot flash device"
-	depends on MTD_PB1550
-	help
-	  Use the first of the two 64MiB flash banks on Pb1550 board.
-	  You can say 'Y' to both this and 'MTD_PB1550_USER' below, to use
-	  both banks.
-
-config MTD_PB1550_USER
-	bool "PB1550 user flash device"
-	depends on MTD_PB1550
-	default y if MTD_PB1550_BOOT = n
-	help
-	  Use the second of the two 64MiB flash banks on Pb1550 board.
-	  You can say 'Y' to both this and 'MTD_PB1550_BOOT' above, to use
-	  both banks.
-
-config MTD_DB1550
-	tristate "Flash devices on Alchemy DB1550 board"
-	depends on MIPS && MIPS_DB1550
-	help
-	  Flash memory access on Alchemy Db1550 board
-
-config MTD_DB1550_BOOT
-	bool "DB1550 boot flash device"
-	depends on MTD_DB1550
-	help
-	  Use the first of the two 64MiB flash banks on Db1550 board.
-	  You can say 'Y' to both this and 'MTD_DB1550_USER' below, to use
-	  both banks.
-
-config MTD_DB1550_USER
-	bool "DB1550 user flash device"
-	depends on MTD_DB1550
-	default y if MTD_DB1550_BOOT = n
-	help
-	  Use the second of the two 64MiB flash banks on Db1550 board.
-	  You can say 'Y' to both this and 'MTD_DB1550_BOOT' above, to use
-	  both banks.
+	  Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
 
 config MTD_DILNETPC
 	tristate "CFI Flash device mapped on DIL/Net PC"

drivers/mtd/maps/Makefile

 #
 # linux/drivers/maps/Makefile
 #
-# $Id: Makefile.common,v 1.24 2005/01/24 00:35:21 bjd Exp $
+# $Id: Makefile.common,v 1.25 2005/02/27 21:50:21 ppopov Exp $
 
 ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)
 obj-$(CONFIG_MTD)		+= map_funcs.o
@@ -44,10 +44,7 @@ obj-$(CONFIG_MTD_DBOX2)		+= dbox2-flash.o
 obj-$(CONFIG_MTD_OCELOT)	+= ocelot.o
 obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
 obj-$(CONFIG_MTD_PCI)		+= pci.o
-obj-$(CONFIG_MTD_PB1XXX)	+= pb1xxx-flash.o
-obj-$(CONFIG_MTD_DB1X00)        += db1x00-flash.o
-obj-$(CONFIG_MTD_PB1550)        += pb1550-flash.o
-obj-$(CONFIG_MTD_DB1550)        += db1550-flash.o
+obj-$(CONFIG_MTD_ALCHEMY)       += alchemy-flash.o
 obj-$(CONFIG_MTD_LASAT)		+= lasat.o
 obj-$(CONFIG_MTD_AUTCPU12)	+= autcpu12-nvram.o
 obj-$(CONFIG_MTD_EDB7312)	+= edb7312.o

drivers/mtd/maps/alchemy-flash.c

+/*
+ * Flash memory access on AMD Alchemy evaluation boards
+ * 
+ * $Id: alchemy-flash.c,v 1.1 2005/02/27 21:50:21 ppopov Exp $
+ *
+ * (C) 2003, 2004 Pete Popov <ppopov@embeddedalley.com>
+ * 
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/io.h>
+
+#ifdef 	DEBUG_RW
+#define	DBG(x...)	printk(x)
+#else
+#define	DBG(x...)	
+#endif
+
+#ifdef CONFIG_MIPS_PB1000
+#define BOARD_MAP_NAME "Pb1000 Flash"
+#define BOARD_FLASH_SIZE 0x00800000 /* 8MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_PB1500
+#define BOARD_MAP_NAME "Pb1500 Flash"
+#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_PB1100
+#define BOARD_MAP_NAME "Pb1100 Flash"
+#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_PB1550
+#define BOARD_MAP_NAME "Pb1550 Flash"
+#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_PB1200
+#define BOARD_MAP_NAME "Pb1200 Flash"
+#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
+#define BOARD_FLASH_WIDTH 2 /* 16-bits */
+#endif
+
+#ifdef CONFIG_MIPS_DB1000
+#define BOARD_MAP_NAME "Db1000 Flash"
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_DB1500
+#define BOARD_MAP_NAME "Db1500 Flash"
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_DB1100
+#define BOARD_MAP_NAME "Db1100 Flash"
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_DB1550
+#define BOARD_MAP_NAME "Db1550 Flash"
+#define BOARD_FLASH_SIZE 0x08000000 /* 128MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#endif
+
+#ifdef CONFIG_MIPS_DB1200
+#define BOARD_MAP_NAME "Db1200 Flash"
+#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
+#define BOARD_FLASH_WIDTH 2 /* 16-bits */
+#endif
+
+#ifdef CONFIG_MIPS_HYDROGEN3
+#define BOARD_MAP_NAME "Hydrogen3 Flash"
+#define BOARD_FLASH_SIZE 0x02000000 /* 32MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#define USE_LOCAL_ACCESSORS /* why? */
+#endif
+
+#ifdef CONFIG_MIPS_BOSPORUS
+#define BOARD_MAP_NAME "Bosporus Flash"
+#define BOARD_FLASH_SIZE 0x01000000 /* 16MB */
+#define BOARD_FLASH_WIDTH 2 /* 16-bits */
+#endif
+
+#ifdef CONFIG_MIPS_MIRAGE
+#define BOARD_MAP_NAME "Mirage Flash"
+#define BOARD_FLASH_SIZE 0x04000000 /* 64MB */
+#define BOARD_FLASH_WIDTH 4 /* 32-bits */
+#define USE_LOCAL_ACCESSORS /* why? */
+#endif
+
+static struct map_info alchemy_map = {
+	.name =	BOARD_MAP_NAME,
+};
+
+static struct mtd_partition alchemy_partitions[] = {
+        {
+                .name = "User FS",
+                .size = BOARD_FLASH_SIZE - 0x00400000,
+                .offset = 0x0000000
+        },{
+                .name = "YAMON",
+                .size = 0x0100000,
+		.offset = MTDPART_OFS_APPEND,
+                .mask_flags = MTD_WRITEABLE
+        },{
+                .name = "raw kernel",
+		.size = (0x300000 - 0x40000), /* last 256KB is yamon env */
+		.offset = MTDPART_OFS_APPEND,
+        }
+};
+
+#define NB_OF(x)  (sizeof(x)/sizeof(x[0]))
+
+static struct mtd_info *mymtd;
+
+int __init alchemy_mtd_init(void)
+{
+	struct mtd_partition *parts;
+	int nb_parts = 0;
+	unsigned long window_addr;
+	unsigned long window_size;
+	
+	/* Default flash buswidth */
+	alchemy_map.bankwidth = BOARD_FLASH_WIDTH;
+
+	window_addr = 0x20000000 - BOARD_FLASH_SIZE;
+	window_size = BOARD_FLASH_SIZE;
+#ifdef CONFIG_MIPS_MIRAGE_WHY
+	/* Boot ROM flash bank only; no user bank */
+	window_addr = 0x1C000000;
+	window_size = 0x04000000;
+	/* USERFS from 0x1C00 0000 to 0x1FC00000 */
+	alchemy_partitions[0].size = 0x03C00000;
+#endif
+
+	/*
+	 * Static partition definition selection
+	 */
+	parts = alchemy_partitions;
+	nb_parts = NB_OF(alchemy_partitions);
+	alchemy_map.size = window_size;
+
+	/*
+	 * Now let's probe for the actual flash.  Do it here since
+	 * specific machine settings might have been set above.
+	 */
+	printk(KERN_NOTICE BOARD_MAP_NAME ": probing %d-bit flash bus\n", 
+			alchemy_map.bankwidth*8);
+	alchemy_map.virt = ioremap(window_addr, window_size);
+	mymtd = do_map_probe("cfi_probe", &alchemy_map);
+	if (!mymtd) {
+		iounmap(alchemy_map.virt);
+		return -ENXIO;
+	}
+	mymtd->owner = THIS_MODULE;
+
+	add_mtd_partitions(mymtd, parts, nb_parts);
+	return 0;
+}
+
+static void __exit alchemy_mtd_cleanup(void)
+{
+	if (mymtd) {
+		del_mtd_partitions(mymtd);
+		map_destroy(mymtd);
+		iounmap(alchemy_map.virt);
+	}
+}
+
+module_init(alchemy_mtd_init);
+module_exit(alchemy_mtd_cleanup);
+
+MODULE_AUTHOR("Embedded Alley Solutions, Inc");
+MODULE_DESCRIPTION(BOARD_MAP_NAME " MTD driver");
+MODULE_LICENSE("GPL");

drivers/mtd/maps/db1550-flash.c

-/*
- * Flash memory access on Alchemy Db1550 board
- * 
- * $Id: db1550-flash.c,v 1.7 2004/11/04 13:24:14 gleixner Exp $
- *
- * (C) 2004 Embedded Edge, LLC, based on db1550-flash.c:
- * (C) 2003, 2004 Pete Popov <ppopov@embeddedalley.com>
- * 
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-#ifdef 	DEBUG_RW
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)	
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-
-
-static struct map_info db1550_map = {
-	.name =	"Db1550 flash",
-};
-
-static unsigned char flash_bankwidth = 4;
-
-/* 
- * Support only 64MB NOR Flash parts
- */
-
-#if defined(CONFIG_MTD_DB1550_BOOT) && defined(CONFIG_MTD_DB1550_USER)
-#define DB1550_BOTH_BANKS
-#elif defined(CONFIG_MTD_DB1550_BOOT) && !defined(CONFIG_MTD_DB1550_USER)
-#define DB1550_BOOT_ONLY
-#elif !defined(CONFIG_MTD_DB1550_BOOT) && defined(CONFIG_MTD_DB1550_USER)
-#define DB1550_USER_ONLY
-#endif
-
-#ifdef DB1550_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first 
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition db1550_partitions[] = {
-	/* assume boot[2:0]:swap is '0000' or '1000', which translates to:
-	 * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
-	 * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
-	 */
-        {
-                .name = "User FS",
-                .size =   (0x1FC00000 - 0x18000000),
-                .offset = 0x0000000
-        },{
-                .name = "yamon",
-                .size = 0x0100000,
-		.offset = MTDPART_OFS_APPEND,
-                .mask_flags = MTD_WRITEABLE
-        },{
-                .name = "raw kernel",
-		.size = (0x300000 - 0x40000), /* last 256KB is yamon env */
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-#elif defined(DB1550_BOOT_ONLY)
-static struct mtd_partition db1550_partitions[] = {
-	/* assume boot[2:0]:swap is '0000' or '1000', which translates to:
-	 * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
-	 */
-        {
-                .name = "User FS",
-                .size =   0x03c00000,
-                .offset = 0x0000000
-        },{
-                .name = "yamon",
-                .size = 0x0100000,
-		.offset = MTDPART_OFS_APPEND,
-                .mask_flags = MTD_WRITEABLE
-        },{
-                .name = "raw kernel",
-		.size = (0x300000-0x40000), /* last 256KB is yamon env */
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-#elif defined(DB1550_USER_ONLY)
-static struct mtd_partition db1550_partitions[] = {
-	/* assume boot[2:0]:swap is '0000' or '1000', which translates to:
-	 * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
-	 */
-        {
-                .name = "User FS",
-                .size = (0x4000000 - 0x200000), /* reserve 2MB for raw kernel */
-                .offset = 0x0000000
-        },{
-                .name = "raw kernel",
-		.size = MTDPART_SIZ_FULL,
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-#else
-#error MTD_DB1550 define combo error /* should never happen */
-#endif
-
-#define NB_OF(x)  (sizeof(x)/sizeof(x[0]))
-
-static struct mtd_info *mymtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
-#if defined(DB1550_BOTH_BANKS)
-			window_addr = 0x18000000;
-			window_size = 0x8000000; 
-#elif defined(DB1550_BOOT_ONLY)
-			window_addr = 0x1C000000;
-			window_size = 0x4000000; 
-#else /* USER ONLY */
-			window_addr = 0x18000000;
-			window_size = 0x4000000; 
-#endif
-	return 0;
-}
-
-int __init db1550_mtd_init(void)
-{
-	struct mtd_partition *parts;
-	int nb_parts = 0;
-	
-	/* Default flash bankwidth */
-	db1550_map.bankwidth = flash_bankwidth;
-
-	if (setup_flash_params()) 
-		return -ENXIO;
-
-	/*
-	 * Static partition definition selection
-	 */
-	parts = db1550_partitions;
-	nb_parts = NB_OF(db1550_partitions);
-	db1550_map.size = window_size;
-
-	/*
-	 * Now let's probe for the actual flash.  Do it here since
-	 * specific machine settings might have been set above.
-	 */
-	printk(KERN_NOTICE "Db1550 flash: probing %d-bit flash bus\n", 
-			db1550_map.bankwidth*8);
-	db1550_map.virt = ioremap(window_addr, window_size);
-	mymtd = do_map_probe("cfi_probe", &db1550_map);
-	if (!mymtd) return -ENXIO;
-	mymtd->owner = THIS_MODULE;
-
-	add_mtd_partitions(mymtd, parts, nb_parts);
-	return 0;
-}
-
-static void __exit db1550_mtd_cleanup(void)
-{
-	if (mymtd) {
-		del_mtd_partitions(mymtd);
-		map_destroy(mymtd);
-		iounmap((void *) db1550_map.virt);
-	}
-}
-
-module_init(db1550_mtd_init);
-module_exit(db1550_mtd_cleanup);
-
-MODULE_AUTHOR("Embedded Edge, LLC");
-MODULE_DESCRIPTION("Db1550 mtd map driver");
-MODULE_LICENSE("GPL");

drivers/mtd/maps/db1x00-flash.c

-/*
- * Flash memory access on Alchemy Db1xxx boards
- * 
- * $Id: db1x00-flash.c,v 1.6 2004/11/04 13:24:14 gleixner Exp $
- *
- * (C) 2003 Pete Popov <ppopov@embeddedalley.com>
- * 
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-#ifdef 	DEBUG_RW
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)	
-#endif
-
-/* MTD CONFIG OPTIONS */
-#if defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER)
-#define DB1X00_BOTH_BANKS
-#elif defined(CONFIG_MTD_DB1X00_BOOT) && !defined(CONFIG_MTD_DB1X00_USER)
-#define DB1X00_BOOT_ONLY
-#elif !defined(CONFIG_MTD_DB1X00_BOOT) && defined(CONFIG_MTD_DB1X00_USER)
-#define DB1X00_USER_ONLY
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-static unsigned long flash_size;
-
-static unsigned short *bcsr = (unsigned short *)0xAE000000;
-static unsigned char flash_bankwidth = 4;
-
-/* 
- * The Db1x boards support different flash densities. We setup
- * the mtd_partition structures below for default of 64Mbit 
- * flash densities, and override the partitions sizes, if
- * necessary, after we check the board status register.
- */
-
-#ifdef DB1X00_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first 
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition db1x00_partitions[] = {
-        {
-                .name         =  "User FS",
-                .size         =  0x1c00000,
-                .offset       =  0x0000000
-        },{
-                .name         =  "yamon",
-                .size         =  0x0100000,
-		.offset       =  MTDPART_OFS_APPEND,
-                .mask_flags   =  MTD_WRITEABLE
-        },{
-                .name         =  "raw kernel",
-		.size         =  (0x300000-0x40000), /* last 256KB is env */
-		.offset       =  MTDPART_OFS_APPEND,
-        }
-};
-#elif defined(DB1X00_BOOT_ONLY)
-static struct mtd_partition db1x00_partitions[] = {
-        {
-                .name         =  "User FS",
-                .size         =  0x00c00000,
-                .offset       =  0x0000000
-        },{
-                .name         =  "yamon",
-                .size         =  0x0100000,
-		.offset       =  MTDPART_OFS_APPEND,
-                .mask_flags   =  MTD_WRITEABLE
-        },{
-                .name         =  "raw kernel",
-		.size         =  (0x300000-0x40000), /* last 256KB is env */
-		.offset       =  MTDPART_OFS_APPEND,
-        }
-};
-#elif defined(DB1X00_USER_ONLY)
-static struct mtd_partition db1x00_partitions[] = {
-        {
-                .name         =  "User FS",
-                .size         =  0x0e00000,
-                .offset       =  0x0000000
-        },{
-                .name         =  "raw kernel",
-		.size         =  MTDPART_SIZ_FULL,
-		.offset       =  MTDPART_OFS_APPEND,
-        }
-};
-#else
-#error MTD_DB1X00 define combo error /* should never happen */
-#endif
-#define NB_OF(x)  (sizeof(x)/sizeof(x[0]))
-
-#define NAME     	"Db1x00 Linux Flash"
-
-static struct map_info db1xxx_mtd_map = {
-	.name		= NAME,
-};
-
-static struct mtd_partition *parsed_parts;
-static struct mtd_info *db1xxx_mtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
-	switch ((bcsr[2] >> 14) & 0x3) {
-		case 0: /* 64Mbit devices */
-			flash_size = 0x800000; /* 8MB per part */
-#if defined(DB1X00_BOTH_BANKS)
-			window_addr = 0x1E000000;
-			window_size = 0x2000000; 
-#elif defined(DB1X00_BOOT_ONLY)
-			window_addr = 0x1F000000;
-			window_size = 0x1000000; 
-#else /* USER ONLY */
-			window_addr = 0x1E000000;
-			window_size = 0x1000000; 
-#endif
-			break;
-		case 1:
-			/* 128 Mbit devices */
-			flash_size = 0x1000000; /* 16MB per part */
-#if defined(DB1X00_BOTH_BANKS)
-			window_addr = 0x1C000000;
-			window_size = 0x4000000;
-			/* USERFS from 0x1C00 0000 to 0x1FC0 0000 */
-			db1x00_partitions[0].size = 0x3C00000;
-#elif defined(DB1X00_BOOT_ONLY)
-			window_addr = 0x1E000000;
-			window_size = 0x2000000;
-			/* USERFS from 0x1E00 0000 to 0x1FC0 0000 */
-			db1x00_partitions[0].size = 0x1C00000;
-#else /* USER ONLY */
-			window_addr = 0x1C000000;
-			window_size = 0x2000000;
-			/* USERFS from 0x1C00 0000 to 0x1DE00000 */
-			db1x00_partitions[0].size = 0x1DE0000;
-#endif
-			break;
-		case 2:
-			/* 256 Mbit devices */
-			flash_size = 0x4000000; /* 64MB per part */
-#if defined(DB1X00_BOTH_BANKS)
-			return 1;
-#elif defined(DB1X00_BOOT_ONLY)
-			/* Boot ROM flash bank only; no user bank */
-			window_addr = 0x1C000000;
-			window_size = 0x4000000;
-			/* USERFS from 0x1C00 0000 to 0x1FC00000 */
-			db1x00_partitions[0].size = 0x3C00000;
-#else /* USER ONLY */
-			return 1;
-#endif
-			break;
-		default:
-			return 1;
-	}
-	db1xxx_mtd_map.size = window_size;
-	db1xxx_mtd_map.bankwidth = flash_bankwidth;
-	db1xxx_mtd_map.phys = window_addr;
-	db1xxx_mtd_map.bankwidth = flash_bankwidth;
-	return 0;
-}
-
-int __init db1x00_mtd_init(void)
-{
-	struct mtd_partition *parts;
-	int nb_parts = 0;
-	
-	if (setup_flash_params()) 
-		return -ENXIO;
-
-	/*
-	 * Static partition definition selection
-	 */
-	parts = db1x00_partitions;
-	nb_parts = NB_OF(db1x00_partitions);
-
-	/*
-	 * Now let's probe for the actual flash.  Do it here since
-	 * specific machine settings might have been set above.
-	 */
-	printk(KERN_NOTICE "Db1xxx flash: probing %d-bit flash bus\n", 
-			db1xxx_mtd_map.bankwidth*8);
-	db1xxx_mtd_map.virt = ioremap(window_addr, window_size);
-	db1xxx_mtd = do_map_probe("cfi_probe", &db1xxx_mtd_map);
-	if (!db1xxx_mtd) return -ENXIO;
-	db1xxx_mtd->owner = THIS_MODULE;
-
-	add_mtd_partitions(db1xxx_mtd, parts, nb_parts);
-	return 0;
-}
-
-static void __exit db1x00_mtd_cleanup(void)
-{
-	if (db1xxx_mtd) {
-		del_mtd_partitions(db1xxx_mtd);
-		map_destroy(db1xxx_mtd);
-		if (parsed_parts)
-			kfree(parsed_parts);
-	}
-}
-
-module_init(db1x00_mtd_init);
-module_exit(db1x00_mtd_cleanup);
-
-MODULE_AUTHOR("Pete Popov");
-MODULE_DESCRIPTION("Db1x00 mtd map driver");
-MODULE_LICENSE("GPL");

drivers/mtd/maps/pb1550-flash.c

-/*
- * Flash memory access on Alchemy Pb1550 board
- * 
- * $Id: pb1550-flash.c,v 1.6 2004/11/04 13:24:15 gleixner Exp $
- *
- * (C) 2004 Embedded Edge, LLC, based on pb1550-flash.c:
- * (C) 2003 Pete Popov <ppopov@pacbell.net>
- * 
- */
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-#include <asm/au1000.h>
-#include <asm/pb1550.h>
-
-#ifdef 	DEBUG_RW
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)	
-#endif
-
-static unsigned long window_addr;
-static unsigned long window_size;
-
-
-static struct map_info pb1550_map = {
-	.name =	"Pb1550 flash",
-};
-
-static unsigned char flash_bankwidth = 4;
-
-/* 
- * Support only 64MB NOR Flash parts
- */
-
-#ifdef PB1550_BOTH_BANKS
-/* both banks will be used. Combine the first bank and the first 
- * part of the second bank together into a single jffs/jffs2
- * partition.
- */
-static struct mtd_partition pb1550_partitions[] = {
-	/* assume boot[2:0]:swap is '0000' or '1000', which translates to:
-	 * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
-	 * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
-	 */
-        {
-                .name = "User FS",
-                .size =   (0x1FC00000 - 0x18000000),
-                .offset = 0x0000000
-        },{
-                .name = "yamon",
-                .size = 0x0100000,
-		.offset = MTDPART_OFS_APPEND,
-                .mask_flags = MTD_WRITEABLE
-        },{
-                .name = "raw kernel",
-		.size = (0x300000 - 0x40000), /* last 256KB is yamon env */
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-#elif defined(PB1550_BOOT_ONLY)
-static struct mtd_partition pb1550_partitions[] = {
-	/* assume boot[2:0]:swap is '0000' or '1000', which translates to:
-	 * 1C00 0000 1FFF FFFF CE0 64MB Boot NOR Flash
-	 */
-        {
-                .name = "User FS",
-                .size =   0x03c00000,
-                .offset = 0x0000000
-        },{
-                .name = "yamon",
-                .size = 0x0100000,
-		.offset = MTDPART_OFS_APPEND,
-                .mask_flags = MTD_WRITEABLE
-        },{
-                .name = "raw kernel",
-		.size = (0x300000-0x40000), /* last 256KB is yamon env */
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-#elif defined(PB1550_USER_ONLY)
-static struct mtd_partition pb1550_partitions[] = {
-	/* assume boot[2:0]:swap is '0000' or '1000', which translates to:
-	 * 1800 0000 1BFF FFFF CE0 64MB Param NOR Flash
-	 */
-        {
-                .name = "User FS",
-                .size = (0x4000000 - 0x200000), /* reserve 2MB for raw kernel */
-                .offset = 0x0000000
-        },{
-                .name = "raw kernel",
-		.size = MTDPART_SIZ_FULL,
-		.offset = MTDPART_OFS_APPEND,
-        }
-};
-#else
-#error MTD_PB1550 define combo error /* should never happen */
-#endif
-
-#define NB_OF(x)  (sizeof(x)/sizeof(x[0]))
-
-static struct mtd_info *mymtd;
-
-/*
- * Probe the flash density and setup window address and size
- * based on user CONFIG options. There are times when we don't
- * want the MTD driver to be probing the boot or user flash,
- * so having the option to enable only one bank is important.
- */
-int setup_flash_params(void)
-{
-	u16 boot_swapboot;
-	boot_swapboot = (au_readl(MEM_STSTAT) & (0x7<<1)) | 
-		((bcsr->status >> 6)  & 0x1);
-	printk("Pb1550 MTD: boot:swap %d\n", boot_swapboot);
-
-	switch (boot_swapboot) {
-		case 0: /* 512Mbit devices, both enabled */
-		case 1: 
-		case 8:
-		case 9: 
-#if defined(PB1550_BOTH_BANKS)
-			window_addr = 0x18000000;
-			window_size = 0x8000000; 
-#elif defined(PB1550_BOOT_ONLY)
-			window_addr = 0x1C000000;
-			window_size = 0x4000000; 
-#else /* USER ONLY */
-			window_addr = 0x1E000000;
-			window_size = 0x4000000; 
-#endif
-			break;
-		case 0xC:
-		case 0xD:
-		case 0xE:
-		case 0xF: 
-			/* 64 MB Boot NOR Flash is disabled */
-			/* and the start address is moved to 0x0C00000 */
-			window_addr = 0x0C000000;
-			window_size = 0x4000000; 
-		default:
-			printk("Pb1550 MTD: unsupported boot:swap setting\n");
-			return 1;
-	}
-	return 0;
-}
-
-int __init pb1550_mtd_init(void)
-{
-	struct mtd_partition *parts;
-	int nb_parts = 0;
-	
-	/* Default flash bankwidth */
-	pb1550_map.bankwidth = flash_bankwidth;
-
-	if (setup_flash_params()) 
-		return -ENXIO;
-
-	/*
-	 * Static partition definition selection
-	 */
-	parts = pb1550_partitions;
-	nb_parts = NB_OF(pb1550_partitions);
-	pb1550_map.size = window_size;
-
-	/*
-	 * Now let's probe for the actual flash.  Do it here since
-	 * specific machine settings might have been set above.
-	 */
-	printk(KERN_NOTICE "Pb1550 flash: probing %d-bit flash bus\n", 
-			pb1550_map.bankwidth*8);
-	pb1550_map.virt = ioremap(window_addr, window_size);
-	mymtd = do_map_probe("cfi_probe", &pb1550_map);
-	if (!mymtd) return -ENXIO;
-	mymtd->owner = THIS_MODULE;
-
-	add_mtd_partitions(mymtd, parts, nb_parts);
-	return 0;
-}
-
-static void __exit pb1550_mtd_cleanup(void)
-{
-	if (mymtd) {
-		del_mtd_partitions(mymtd);
-		map_destroy(mymtd);
-	}
-}
-
-module_init(pb1550_mtd_init);
-module_exit(pb1550_mtd_cleanup);
-
-MODULE_AUTHOR("Embedded Edge, LLC");
-MODULE_DESCRIPTION("Pb1550 mtd map driver");
-MODULE_LICENSE("GPL");

drivers/mtd/maps/pb1xxx-flash.c

-/*
- * Flash memory access on Alchemy Pb1xxx boards
- * 
- * (C) 2001 Pete Popov <ppopov@mvista.com>
- * 
- * $Id: pb1xxx-flash.c,v 1.14 2004/11/04 13:24:15 gleixner Exp $
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-#include <asm/io.h>
-
-#ifdef 	DEBUG_RW
-#define	DBG(x...)	printk(x)
-#else
-#define	DBG(x...)	
-#endif
-
-#ifdef CONFIG_MIPS_PB1000
-
-#define WINDOW_ADDR 0x1F800000
-#define WINDOW_SIZE 0x800000
-
-static struct mtd_partition pb1xxx_partitions[] = {
-        {
-                .name         =  "yamon env",
-                .size         =   0x00020000,
-                .offset       =   0,
-                .mask_flags   =   MTD_WRITEABLE},
-	{
-                .name         =   "User FS",
-                .size         =   0x003e0000,
-                .offset       =   0x20000,},
-	{
-                .name         =   "boot code",
-                .size         =   0x100000,
-                .offset       =   0x400000,
-                .mask_flags   =   MTD_WRITEABLE},
-	{
-                .name         =   "raw/kernel",
-                .size         =   0x300000,
-                .offset       =   0x500000}
-};
-
-#elif defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1100)
-
-#if defined(CONFIG_MTD_PB1500_BOOT) && defined(CONFIG_MTD_PB1500_USER)
-/* both 32MB banks will be used. Combine the first 32MB bank and the
- * first 28MB of the second bank together into a single jffs/jffs2
- * partition.
- */
-#define WINDOW_ADDR 0x1C000000
-#define WINDOW_SIZE 0x4000000
-static struct mtd_partition pb1xxx_partitions[] = {
-        {
-                .name         =   "User FS",
-                .size         =   0x3c00000,
-                .offset       =   0x0000000
-        },{
-                .name         =   "yamon",
-                .size         =   0x0100000,
-                .offset       =   0x3c00000,
-                .mask_flags   =   MTD_WRITEABLE
-        },{
-                .name         =   "raw kernel",
-                .size         =   0x02c0000,
-                .offset       =   0x3d00000
-        }
-};
-#elif defined(CONFIG_MTD_PB1500_BOOT) && !defined(CONFIG_MTD_PB1500_USER)
-#define WINDOW_ADDR 0x1E000000
-#define WINDOW_SIZE 0x2000000
-static struct mtd_partition pb1xxx_partitions[] = {
-        {
-                .name         =   "User FS",
-                .size         =   0x1c00000,
-                .offset       =   0x0000000
-        },{
-                .name         =   "yamon",
-                .size         =   0x0100000,
-                .offset       =   0x1c00000,
-                .mask_flags   =   MTD_WRITEABLE
-        },{
-                .name         =   "raw kernel",
-                .size         =   0x02c0000,
-                .offset       =   0x1d00000
-        }
-};
-#elif !defined(CONFIG_MTD_PB1500_BOOT) && defined(CONFIG_MTD_PB1500_USER)
-#define WINDOW_ADDR 0x1C000000
-#define WINDOW_SIZE 0x2000000
-static struct mtd_partition pb1xxx_partitions[] = {
-        {
-                .name         =   "User FS",
-                .size         =    0x1e00000,
-                .offset       =    0x0000000
-        },{
-                .name         =    "raw kernel",
-                .size         =    0x0200000,
-                .offset       =    0x1e00000,
-        }
-};
-#else
-#error MTD_PB1500 define combo error /* should never happen */
-#endif
-#else
-#error Unsupported board
-#endif
-
-#define NAME     	"Pb1x00 Linux Flash"
-#define PADDR    	WINDOW_ADDR
-#define BUSWIDTH	4
-#define SIZE		WINDOW_SIZE
-#define PARTITIONS	4
-
-static struct map_info pb1xxx_mtd_map = {
-	.name		= NAME,
-	.size		= SIZE,
-	.bankwidth	= BUSWIDTH,
-	.phys		= PADDR,
-};
-
-static struct mtd_info *pb1xxx_mtd;
-
-int __init pb1xxx_mtd_init(void)
-{
-	struct mtd_partition *parts;
-	int nb_parts = 0;
-	char *part_type;
-	
-	/*
-	 * Static partition definition selection
-	 */
-	part_type = "static";
-	parts = pb1xxx_partitions;
-	nb_parts = ARRAY_SIZE(pb1xxx_partitions);
-
-	/*
-	 * Now let's probe for the actual flash.  Do it here since
-	 * specific machine settings might have been set above.
-	 */
-	printk(KERN_NOTICE "Pb1xxx flash: probing %d-bit flash bus\n", 
-			BUSWIDTH*8);
-	pb1xxx_mtd_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
-
-	simple_map_init(&pb1xxx_mtd_map);
-
-	pb1xxx_mtd = do_map_probe("cfi_probe", &pb1xxx_mtd_map);
-	if (!pb1xxx_mtd) return -ENXIO;
-	pb1xxx_mtd->owner = THIS_MODULE;
-
-	add_mtd_partitions(pb1xxx_mtd, parts, nb_parts);
-	return 0;
-}
-
-static void __exit pb1xxx_mtd_cleanup(void)
-{
-	if (pb1xxx_mtd) {
-		del_mtd_partitions(pb1xxx_mtd);
-		map_destroy(pb1xxx_mtd);
-		iounmap((void *) pb1xxx_mtd_map.virt);
-	}
-}
-
-module_init(pb1xxx_mtd_init);
-module_exit(pb1xxx_mtd_cleanup);
-
-MODULE_AUTHOR("Pete Popov");
-MODULE_DESCRIPTION("Pb1xxx CFI map driver");
-MODULE_LICENSE("GPL");