Commit 1a33ce65 authored by TsiChungLiew's avatar TsiChungLiew Committed by Stefan Roese
Browse files

Added NAND support


Signed-off-by: default avatarTsiChungLiew <Tsi-Chung.Liew@freescale.com>
parent eaf9e447
......@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
COBJS = $(BOARD).o mii.o
COBJS = $(BOARD).o mii.o nand.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
......
/*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#include <common.h>
#include <asm/io.h>
#include <asm/immap.h>
DECLARE_GLOBAL_DATA_PTR;
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
#include <nand.h>
#include <linux/mtd/mtd.h>
#define SET_CLE 0x10
#define CLR_CLE ~SET_CLE
#define SET_ALE 0x08
#define CLR_ALE ~SET_ALE
static void nand_hwcontrol(struct mtd_info *mtdinfo, int cmd)
{
struct nand_chip *this = mtdinfo->priv;
volatile fbcs_t *fbcs = (fbcs_t *) MMAP_FBCS;
u32 nand_baseaddr = (u32) this->IO_ADDR_W;
switch (cmd) {
case NAND_CTL_SETNCE:
case NAND_CTL_CLRNCE:
break;
case NAND_CTL_SETCLE:
nand_baseaddr |= SET_CLE;
break;
case NAND_CTL_CLRCLE:
nand_baseaddr &= CLR_CLE;
break;
case NAND_CTL_SETALE:
nand_baseaddr |= SET_ALE;
break;
case NAND_CTL_CLRALE:
nand_baseaddr |= CLR_ALE;
break;
case NAND_CTL_SETWP:
fbcs->csmr2 |= CSMR_WP;
break;
case NAND_CTL_CLRWP:
fbcs->csmr2 &= ~CSMR_WP;
break;
}
this->IO_ADDR_W = (void __iomem *)(nand_baseaddr);
}
static void nand_write_byte(struct mtd_info *mtdinfo, u_char byte)
{
struct nand_chip *this = mtdinfo->priv;
*((volatile u8 *)(this->IO_ADDR_W)) = byte;
}
static u8 nand_read_byte(struct mtd_info *mtdinfo)
{
struct nand_chip *this = mtdinfo->priv;
return (u8) (*((volatile u8 *)this->IO_ADDR_R));
}
static int nand_dev_ready(struct mtd_info *mtdinfo)
{
return 1;
}
int board_nand_init(struct nand_chip *nand)
{
volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
*((volatile u16 *)CFG_LATCH_ADDR) |= 0x0004;
/* set up pin configuration */
gpio->par_timer &= ~GPIO_PAR_TIN3_TIN3;
gpio->pddr_timer |= 0x08;
gpio->ppd_timer |= 0x08;
gpio->pclrr_timer = 0;
gpio->podr_timer = 0;
nand->chip_delay = 50;
nand->eccmode = NAND_ECC_SOFT;
nand->hwcontrol = nand_hwcontrol;
nand->read_byte = nand_read_byte;
nand->write_byte = nand_write_byte;
nand->dev_ready = nand_dev_ready;
return 0;
}
#endif
......@@ -15,4 +15,43 @@ extern int test_and_set_bit(int nr, volatile void *addr);
extern int test_and_clear_bit(int nr, volatile void *addr);
extern int test_and_change_bit(int nr, volatile void *addr);
#ifdef __KERNEL__
/*
* ffs: find first bit set. This is defined the same way as
* the libc and compiler builtin ffs routines, therefore
* differs in spirit from the above ffz (man ffs).
*/
extern __inline__ int ffs(int x)
{
int r = 1;
if (!x)
return 0;
if (!(x & 0xffff)) {
x >>= 16;
r += 16;
}
if (!(x & 0xff)) {
x >>= 8;
r += 8;
}
if (!(x & 0xf)) {
x >>= 4;
r += 4;
}
if (!(x & 3)) {
x >>= 2;
r += 2;
}
if (!(x & 1)) {
x >>= 1;
r += 1;
}
return r;
}
#define __ffs(x) (ffs(x) - 1)
#endif /* __KERNEL__ */
#endif /* _M68K_BITOPS_H */
#ifndef _PPC_ERRNO_H
#define _PPC_ERRNO_H
#define EPERM 1 /* Operation not permitted */
#define ENOENT 2 /* No such file or directory */
#define ESRCH 3 /* No such process */
#define EINTR 4 /* Interrupted system call */
#define EIO 5 /* I/O error */
#define ENXIO 6 /* No such device or address */
#define E2BIG 7 /* Arg list too long */
#define ENOEXEC 8 /* Exec format error */
#define EBADF 9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY 16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV 18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG 27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS 30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE 32 /* Broken pipe */
#define EDOM 33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */
#define EDEADLK 35 /* Resource deadlock would occur */
#define ENAMETOOLONG 36 /* File name too long */
#define ENOLCK 37 /* No record locks available */
#define ENOSYS 38 /* Function not implemented */
#define ENOTEMPTY 39 /* Directory not empty */
#define ELOOP 40 /* Too many symbolic links encountered */
#define EWOULDBLOCK EAGAIN /* Operation would block */
#define ENOMSG 42 /* No message of desired type */
#define EIDRM 43 /* Identifier removed */
#define ECHRNG 44 /* Channel number out of range */
#define EL2NSYNC 45 /* Level 2 not synchronized */
#define EL3HLT 46 /* Level 3 halted */
#define EL3RST 47 /* Level 3 reset */
#define ELNRNG 48 /* Link number out of range */
#define EUNATCH 49 /* Protocol driver not attached */
#define ENOCSI 50 /* No CSI structure available */
#define EL2HLT 51 /* Level 2 halted */
#define EBADE 52 /* Invalid exchange */
#define EBADR 53 /* Invalid request descriptor */
#define EXFULL 54 /* Exchange full */
#define ENOANO 55 /* No anode */
#define EBADRQC 56 /* Invalid request code */
#define EBADSLT 57 /* Invalid slot */
#define EDEADLOCK 58 /* File locking deadlock error */
#define EBFONT 59 /* Bad font file format */
#define ENOSTR 60 /* Device not a stream */
#define ENODATA 61 /* No data available */
#define ETIME 62 /* Timer expired */
#define ENOSR 63 /* Out of streams resources */
#define ENONET 64 /* Machine is not on the network */
#define ENOPKG 65 /* Package not installed */
#define EREMOTE 66 /* Object is remote */
#define ENOLINK 67 /* Link has been severed */
#define EADV 68 /* Advertise error */
#define ESRMNT 69 /* Srmount error */
#define ECOMM 70 /* Communication error on send */
#define EPROTO 71 /* Protocol error */
#define EMULTIHOP 72 /* Multihop attempted */
#define EDOTDOT 73 /* RFS specific error */
#define EBADMSG 74 /* Not a data message */
#define EOVERFLOW 75 /* Value too large for defined data type */
#define ENOTUNIQ 76 /* Name not unique on network */
#define EBADFD 77 /* File descriptor in bad state */
#define EREMCHG 78 /* Remote address changed */
#define ELIBACC 79 /* Can not access a needed shared library */
#define ELIBBAD 80 /* Accessing a corrupted shared library */
#define ELIBSCN 81 /* .lib section in a.out corrupted */
#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
#define ELIBEXEC 83 /* Cannot exec a shared library directly */
#define EILSEQ 84 /* Illegal byte sequence */
#define ERESTART 85 /* Interrupted system call should be restarted */
#define ESTRPIPE 86 /* Streams pipe error */
#define EUSERS 87 /* Too many users */
#define ENOTSOCK 88 /* Socket operation on non-socket */
#define EDESTADDRREQ 89 /* Destination address required */
#define EMSGSIZE 90 /* Message too long */
#define EPROTOTYPE 91 /* Protocol wrong type for socket */
#define ENOPROTOOPT 92 /* Protocol not available */
#define EPROTONOSUPPORT 93 /* Protocol not supported */
#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
#define EPFNOSUPPORT 96 /* Protocol family not supported */
#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
#define EADDRINUSE 98 /* Address already in use */
#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
#define ENETDOWN 100 /* Network is down */
#define ENETUNREACH 101 /* Network is unreachable */
#define ENETRESET 102 /* Network dropped connection because of reset */
#define ECONNABORTED 103 /* Software caused connection abort */
#define ECONNRESET 104 /* Connection reset by peer */
#define ENOBUFS 105 /* No buffer space available */
#define EISCONN 106 /* Transport endpoint is already connected */
#define ENOTCONN 107 /* Transport endpoint is not connected */
#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS 109 /* Too many references: cannot splice */
#define ETIMEDOUT 110 /* Connection timed out */
#define ECONNREFUSED 111 /* Connection refused */
#define EHOSTDOWN 112 /* Host is down */
#define EHOSTUNREACH 113 /* No route to host */
#define EALREADY 114 /* Operation already in progress */
#define EINPROGRESS 115 /* Operation now in progress */
#define ESTALE 116 /* Stale NFS file handle */
#define EUCLEAN 117 /* Structure needs cleaning */
#define ENOTNAM 118 /* Not a XENIX named type file */
#define ENAVAIL 119 /* No XENIX semaphores available */
#define EISNAM 120 /* Is a named type file */
#define EREMOTEIO 121 /* Remote I/O error */
#define EDQUOT 122 /* Quota exceeded */
#define ENOMEDIUM 123 /* No medium found */
#define EMEDIUMTYPE 124 /* Wrong medium type */
/* Should never be seen by user programs */
#define ERESTARTSYS 512
#define ERESTARTNOINTR 513
#define ERESTARTNOHAND 514 /* restart if no handler.. */
#define ENOIOCTLCMD 515 /* No ioctl command */
#define _LAST_ERRNO 515
#endif
......@@ -47,7 +47,7 @@
#undef CONFIG_WATCHDOG
#define CONFIG_WATCHDOG_TIMEOUT 5000 /* timeout in milliseconds, max timeout is 6.71sec */
#define CONFIG_COMMANDS ( CONFIG_CMD_DFL | \
#define DEFAULT_COMMANDS ( CONFIG_CMD_DFL | \
CFG_CMD_CACHE | \
CFG_CMD_DATE | \
CFG_CMD_ELF | \
......@@ -62,6 +62,12 @@
CFG_CMD_REGINFO \
)
#ifdef NANDFLASH_SIZE
# define CONFIG_COMMANDS (DEFAULT_COMMANDS | CFG_CMD_NAND)
#else
# define CONFIG_COMMANDS (DEFAULT_COMMANDS)
#endif
#define CFG_UNIFY_CACHE
#define CONFIG_MCFFEC
......@@ -148,6 +154,8 @@
#define CFG_MBAR 0xFC000000
#define CFG_LATCH_ADDR (CFG_CS1_BASE + 0x80000)
/*
* Low Level Configuration Settings
* (address mappings, register initial values, etc.)
......@@ -205,6 +213,19 @@
# define CFG_FLASH_PROTECTION /* "Real" (hardware) sectors protection */
#endif
#ifdef NANDFLASH_SIZE
# define CFG_MAX_NAND_DEVICE 1
# define CFG_NAND_BASE (CFG_CS2_BASE << 16)
# define CFG_NAND_SIZE 1
# define CFG_NAND_BASE_LIST { CFG_NAND_BASE }
# define NAND_MAX_CHIPS 1
# define NAND_ALLOW_ERASE_ALL 1
# define CONFIG_JFFS2_NAND 1
# define CONFIG_JFFS2_DEV "nand0"
# define CONFIG_JFFS2_PART_SIZE (CFG_CS2_MASK & ~1)
# define CONFIG_JFFS2_PART_OFFSET 0x00000000
#endif
#define CFG_FLASH_BASE 0
#define CFG_FLASH0_BASE (CFG_CS0_BASE << 16)
......@@ -241,8 +262,8 @@
#define CFG_CS1_CTRL 0x002A3780
#ifdef NANDFLASH_SIZE
#define CFG_CS2_BASE 0x00800000
#define CFG_CS2_MASK 0x00ff0001
#define CFG_CS2_BASE 0x2000
#define CFG_CS2_MASK ((NANDFLASH_SIZE << 20) | 1)
#define CFG_CS2_CTRL 0x00001f60
#endif
......
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