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提交 002fa301 编写于 作者: P Pete Popov 提交者： Thomas Gleixner
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[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: NPete Popov <ppopov@pacbell.net>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
上级 d30f11d2
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Showing with 199 addition and 867 deletion
drivers/mtd/maps/Kconfig
浏览文件 @ 002fa301
# 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
浏览文件 @ 002fa301
#
# 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 0 → 100644
浏览文件 @ 002fa301
/*
* 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 已删除 100644 → 0
浏览文件 @ d30f11d2
/*
* 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 已删除 100644 → 0
浏览文件 @ d30f11d2
/*
* 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 已删除 100644 → 0
浏览文件 @ d30f11d2
/*
* 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 已删除 100644 → 0
浏览文件 @ d30f11d2
/*
* 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");
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