diff options
Diffstat (limited to 'drivers/cfi_flash.c')
| -rw-r--r-- | drivers/cfi_flash.c | 839 |
1 files changed, 535 insertions, 304 deletions
diff --git a/drivers/cfi_flash.c b/drivers/cfi_flash.c index c4d7bff54c..c6c2751d64 100644 --- a/drivers/cfi_flash.c +++ b/drivers/cfi_flash.c @@ -1,11 +1,15 @@ /* - * (C) Copyright 2002 + * (C) Copyright 2002-2004 * Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com * * Copyright (C) 2003 Arabella Software Ltd. * Yuli Barcohen <yuli@arabellasw.com> * Modified to work with AMD flashes * + * Copyright (C) 2004 + * Ed Okerson + * Modified to work with little-endian systems. + * * See file CREDITS for list of people who contributed to this * project. * @@ -26,18 +30,22 @@ * * History * 01/20/2004 - combined variants of original driver. + * 01/22/2004 - Write performance enhancements for parallel chips (Tolunay) + * 01/23/2004 - Support for x8/x16 chips (Rune Raknerud) + * 01/27/2004 - Little endian support Ed Okerson * * Tested Architectures - * Port Width Chip Width # of banks Flash Chip Board - * 32 16 1 23F128J3 seranoa/eagle + * Port Width Chip Width # of banks Flash Chip Board + * 32 16 1 23F128J3 seranoa/eagle + * 64 16 1 23F128J3 seranoa/falcon * */ /* The DEBUG define must be before common to enable debugging */ -#undef DEBUG +#undef DEBUG #include <common.h> #include <asm/processor.h> -#ifdef CFG_FLASH_CFI_DRIVER +#ifdef CFG_FLASH_CFI_DRIVER /* * This file implements a Common Flash Interface (CFI) driver for U-Boot. * The width of the port and the width of the chips are determined at initialization. @@ -59,6 +67,10 @@ * Verify erase and program timeouts. */ +#ifndef CFG_FLASH_BANKS_LIST +#define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE } +#endif + #define FLASH_CMD_CFI 0x98 #define FLASH_CMD_READ_ID 0x90 #define FLASH_CMD_RESET 0xff @@ -69,8 +81,8 @@ #define FLASH_CMD_PROTECT_SET 0x01 #define FLASH_CMD_PROTECT_CLEAR 0xD0 #define FLASH_CMD_CLEAR_STATUS 0x50 -#define FLASH_CMD_WRITE_TO_BUFFER 0xE8 -#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0 +#define FLASH_CMD_WRITE_TO_BUFFER 0xE8 +#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0 #define FLASH_STATUS_DONE 0x80 #define FLASH_STATUS_ESS 0x40 @@ -92,35 +104,35 @@ #define FLASH_OFFSET_CFI 0x55 #define FLASH_OFFSET_CFI_RESP 0x10 -#define FLASH_OFFSET_PRIMARY_VENDOR 0x13 +#define FLASH_OFFSET_PRIMARY_VENDOR 0x13 #define FLASH_OFFSET_WTOUT 0x1F -#define FLASH_OFFSET_WBTOUT 0x20 +#define FLASH_OFFSET_WBTOUT 0x20 #define FLASH_OFFSET_ETOUT 0x21 -#define FLASH_OFFSET_CETOUT 0x22 +#define FLASH_OFFSET_CETOUT 0x22 #define FLASH_OFFSET_WMAX_TOUT 0x23 -#define FLASH_OFFSET_WBMAX_TOUT 0x24 +#define FLASH_OFFSET_WBMAX_TOUT 0x24 #define FLASH_OFFSET_EMAX_TOUT 0x25 -#define FLASH_OFFSET_CEMAX_TOUT 0x26 +#define FLASH_OFFSET_CEMAX_TOUT 0x26 #define FLASH_OFFSET_SIZE 0x27 -#define FLASH_OFFSET_INTERFACE 0x28 -#define FLASH_OFFSET_BUFFER_SIZE 0x2A +#define FLASH_OFFSET_INTERFACE 0x28 +#define FLASH_OFFSET_BUFFER_SIZE 0x2A #define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C #define FLASH_OFFSET_ERASE_REGIONS 0x2D #define FLASH_OFFSET_PROTECT 0x02 -#define FLASH_OFFSET_USER_PROTECTION 0x85 -#define FLASH_OFFSET_INTEL_PROTECTION 0x81 +#define FLASH_OFFSET_USER_PROTECTION 0x85 +#define FLASH_OFFSET_INTEL_PROTECTION 0x81 #define FLASH_MAN_CFI 0x01000000 -#define CFI_CMDSET_NONE 0 +#define CFI_CMDSET_NONE 0 #define CFI_CMDSET_INTEL_EXTENDED 1 -#define CFI_CMDSET_AMD_STANDARD 2 +#define CFI_CMDSET_AMD_STANDARD 2 #define CFI_CMDSET_INTEL_STANDARD 3 -#define CFI_CMDSET_AMD_EXTENDED 4 +#define CFI_CMDSET_AMD_EXTENDED 4 #define CFI_CMDSET_MITSU_STANDARD 256 #define CFI_CMDSET_MITSU_EXTENDED 257 -#define CFI_CMDSET_SST 258 +#define CFI_CMDSET_SST 258 typedef union { @@ -131,9 +143,9 @@ typedef union { } cfiword_t; typedef union { - volatile unsigned char *cp; + volatile unsigned char *cp; volatile unsigned short *wp; - volatile unsigned long *lp; + volatile unsigned long *lp; volatile unsigned long long *llp; } cfiptr_t; @@ -141,7 +153,7 @@ typedef union { static ulong bank_base[CFG_MAX_FLASH_BANKS] = CFG_FLASH_BANKS_LIST; -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ /*----------------------------------------------------------------------- * Functions @@ -149,74 +161,157 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ typedef unsigned long flash_sect_t; -static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c); -static void flash_make_cmd(flash_info_t * info, uchar cmd, void * cmdbuf); -static void flash_write_cmd(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd); -static void flash_unlock_seq(flash_info_t *info); -static int flash_isequal(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd); -static int flash_isset(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd); -static int flash_toggle(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd); -static int flash_detect_cfi(flash_info_t * info); +static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c); +static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf); +static void flash_write_cmd (flash_info_t * info, flash_sect_t sect, + uint offset, uchar cmd); +static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect); +static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, + uchar cmd); +static int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, + uchar cmd); +static int flash_toggle (flash_info_t * info, flash_sect_t sect, uint offset, + uchar cmd); +static int flash_detect_cfi (flash_info_t * info); static ulong flash_get_size (ulong base, int banknum); -static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword); -static int flash_full_status_check(flash_info_t * info, flash_sect_t sector, ulong tout, char * prompt); +static int flash_write_cfiword (flash_info_t * info, ulong dest, + cfiword_t cword); +static int flash_full_status_check (flash_info_t * info, flash_sect_t sector, + ulong tout, char *prompt); #ifdef CFG_FLASH_USE_BUFFER_WRITE -static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, int len); +static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp, + int len); #endif +/*----------------------------------------------------------------------- + * create an address based on the offset and the port width + */ +inline uchar *flash_make_addr (flash_info_t * info, flash_sect_t sect, + uint offset) +{ + return ((uchar *) (info->start[sect] + (offset * info->portwidth))); +} + #ifdef DEBUG -void print_longlong(char * str, unsigned long long data) +/*----------------------------------------------------------------------- + * Debug support + */ +void print_longlong (char *str, unsigned long long data) { int i; char *cp; - cp = (unsigned char *)&data; - for(i=0;i<8; i++) - sprintf(&str[i*2], "%2.2x", *cp++); + + cp = (unsigned char *) &data; + for (i = 0; i < 8; i++) + sprintf (&str[i * 2], "%2.2x", *cp++); +} +static void flash_printqry (flash_info_t * info, flash_sect_t sect) +{ + cfiptr_t cptr; + int x, y; + + for (x = 0; x < 0x40; x += 16 / info->portwidth) { + cptr.cp = + flash_make_addr (info, sect, + x + FLASH_OFFSET_CFI_RESP); + debug ("%p : ", cptr.cp); + for (y = 0; y < 16; y++) { + debug ("%2.2x ", cptr.cp[y]); + } + debug (" "); + for (y = 0; y < 16; y++) { + if (cptr.cp[y] >= 0x20 && cptr.cp[y] <= 0x7e) { + debug ("%c", cptr.cp[y]); + } else { + debug ("."); + } + } + debug ("\n"); + } } + #endif /*----------------------------------------------------------------------- - * create an address based on the offset and the port width - */ -inline uchar * flash_make_addr(flash_info_t * info, flash_sect_t sect, uint offset) -{ - return ((uchar *)(info->start[sect] + (offset * info->portwidth))); -} -/*----------------------------------------------------------------------- * read a character at a port width address */ -inline uchar flash_read_uchar(flash_info_t * info, uint offset) +inline uchar flash_read_uchar (flash_info_t * info, uint offset) { uchar *cp; - cp = flash_make_addr(info, 0, offset); + + cp = flash_make_addr (info, 0, offset); +#if defined(__LITTLE_ENDIAN) + return (cp[0]); +#else return (cp[info->portwidth - 1]); +#endif } /*----------------------------------------------------------------------- * read a short word by swapping for ppc format. */ -ushort flash_read_ushort(flash_info_t * info, flash_sect_t sect, uint offset) +ushort flash_read_ushort (flash_info_t * info, flash_sect_t sect, uint offset) { - uchar * addr; + uchar *addr; + ushort retval; - addr = flash_make_addr(info, sect, offset); - return ((addr[(2*info->portwidth) - 1] << 8) | addr[info->portwidth - 1]); +#ifdef DEBUG + int x; +#endif + addr = flash_make_addr (info, sect, offset); +#ifdef DEBUG + debug ("ushort addr is at %p info->portwidth = %d\n", addr, + info->portwidth); + for (x = 0; x < 2 * info->portwidth; x++) { + debug ("addr[%x] = 0x%x\n", x, addr[x]); + } +#endif +#if defined(__LITTLE_ENDIAN) + retval = ((addr[(info->portwidth)] << 8) | addr[0]); +#else + retval = ((addr[(2 * info->portwidth) - 1] << 8) | + addr[info->portwidth - 1]); +#endif + + debug ("retval = 0x%x\n", retval); + return retval; } /*----------------------------------------------------------------------- * read a long word by picking the least significant byte of each maiximum * port size word. Swap for ppc format. */ -ulong flash_read_long(flash_info_t * info, flash_sect_t sect, uint offset) +ulong flash_read_long (flash_info_t * info, flash_sect_t sect, uint offset) { - uchar * addr; - addr = flash_make_addr(info, sect, offset); - return ( (addr[(2*info->portwidth) - 1] << 24 ) | (addr[(info->portwidth) -1] << 16) | - (addr[(4*info->portwidth) - 1] << 8) | addr[(3*info->portwidth) - 1]); + uchar *addr; + ulong retval; + +#ifdef DEBUG + int x; +#endif + addr = flash_make_addr (info, sect, offset); +#ifdef DEBUG + debug ("long addr is at %p info->portwidth = %d\n", addr, + info->portwidth); + for (x = 0; x < 4 * info->portwidth; x++) { + debug ("addr[%x] = 0x%x\n", x, addr[x]); + } +#endif +#if defined(__LITTLE_ENDIAN) + retval = (addr[0] << 16) | (addr[(info->portwidth)] << 24) | + (addr[(2 * info->portwidth)]) | (addr[(3 * info->portwidth)] + << 8); +#else + retval = (addr[(2 * info->portwidth) - 1] << 24) | + (addr[(info->portwidth) - 1] << 16) | + (addr[(4 * info->portwidth) - 1] << 8) | + addr[(3 * info->portwidth) - 1]; +#endif + return retval; } /*----------------------------------------------------------------------- @@ -227,21 +322,20 @@ unsigned long flash_init (void) int i; /* Init: no FLASHes known */ - for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) { + for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; - size += flash_info[i].size = flash_get_size(bank_base[i], i); + size += flash_info[i].size = flash_get_size (bank_base[i], i); if (flash_info[i].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", - i, flash_info[i].size, flash_info[i].size << 20); + printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", i, flash_info[i].size, flash_info[i].size << 20); } } /* Monitor protection ON by default */ #if (CFG_MONITOR_BASE >= CFG_FLASH_BASE) - flash_protect(FLAG_PROTECT_SET, - CFG_MONITOR_BASE, - CFG_MONITOR_BASE + monitor_flash_len - 1, - &flash_info[0]); + flash_protect (FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1, + &flash_info[0]); #endif return (size); @@ -249,13 +343,13 @@ unsigned long flash_init (void) /*----------------------------------------------------------------------- */ -int flash_erase (flash_info_t *info, int s_first, int s_last) +int flash_erase (flash_info_t * info, int s_first, int s_last) { int rcode = 0; int prot; flash_sect_t sect; - if( info->flash_id != FLASH_MAN_CFI) { + if (info->flash_id != FLASH_MAN_CFI) { printf ("Can't erase unknown flash type - aborted\n"); return 1; } @@ -265,44 +359,50 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) } prot = 0; - for (sect=s_first; sect<=s_last; ++sect) { + for (sect = s_first; sect <= s_last; ++sect) { if (info->protect[sect]) { prot++; } } if (prot) { - printf ("- Warning: %d protected sectors will not be erased!\n", - prot); + printf ("- Warning: %d protected sectors will not be erased!\n", prot); } else { printf ("\n"); } - for (sect = s_first; sect<=s_last; sect++) { + for (sect = s_first; sect <= s_last; sect++) { if (info->protect[sect] == 0) { /* not protected */ - switch(info->vendor) { + switch (info->vendor) { case CFI_CMDSET_INTEL_STANDARD: case CFI_CMDSET_INTEL_EXTENDED: - flash_write_cmd(info, sect, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd(info, sect, 0, FLASH_CMD_BLOCK_ERASE); - flash_write_cmd(info, sect, 0, FLASH_CMD_ERASE_CONFIRM); + flash_write_cmd (info, sect, 0, + FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, sect, 0, + FLASH_CMD_BLOCK_ERASE); + flash_write_cmd (info, sect, 0, + FLASH_CMD_ERASE_CONFIRM); break; case CFI_CMDSET_AMD_STANDARD: case CFI_CMDSET_AMD_EXTENDED: - flash_unlock_seq(info); - flash_write_cmd(info, sect, 0x555, AMD_CMD_ERASE_START); - flash_unlock_seq(info); - flash_write_cmd(info, sect, 0, AMD_CMD_ERASE_SECTOR); + flash_unlock_seq (info, sect); + flash_write_cmd (info, sect, 0x555, + AMD_CMD_ERASE_START); + flash_unlock_seq (info, sect); + flash_write_cmd (info, sect, 0, + AMD_CMD_ERASE_SECTOR); break; default: - debug("Unkown flash vendor %d\n", info->vendor); + debug ("Unkown flash vendor %d\n", + info->vendor); break; } - if(flash_full_status_check(info, sect, info->erase_blk_tout, "erase")) { + if (flash_full_status_check + (info, sect, info->erase_blk_tout, "erase")) { rcode = 1; } else - printf("."); + printf ("."); } } printf (" done\n"); @@ -311,7 +411,7 @@ int flash_erase (flash_info_t *info, int s_first, int s_last) /*----------------------------------------------------------------------- */ -void flash_print_info (flash_info_t *info) +void flash_print_info (flash_info_t * info) { int i; @@ -320,15 +420,14 @@ void flash_print_info (flash_info_t *info) return; } - printf("CFI conformant FLASH (%d x %d)", - (info->portwidth << 3 ), (info->chipwidth << 3 )); + printf ("CFI conformant FLASH (%d x %d)", + (info->portwidth << 3), (info->chipwidth << 3)); printf (" Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count); - printf(" Erase timeout %ld ms, write timeout %ld ms, buffer write timeout %ld ms, buffer size %d\n", - info->erase_blk_tout, info->write_tout, info->buffer_write_tout, info->buffer_size); + printf (" Erase timeout %ld ms, write timeout %ld ms, buffer write timeout %ld ms, buffer size %d\n", info->erase_blk_tout, info->write_tout, info->buffer_write_tout, info->buffer_size); printf (" Sector Start Addresses:"); - for (i=0; i<info->sector_count; ++i) { + for (i = 0; i < info->sector_count; ++i) { #ifdef CFG_FLASH_EMPTY_INFO int k; int size; @@ -338,21 +437,19 @@ void flash_print_info (flash_info_t *info) /* * Check if whole sector is erased */ - if (i != (info->sector_count-1)) - size = info->start[i+1] - info->start[i]; + if (i != (info->sector_count - 1)) + size = info->start[i + 1] - info->start[i]; else - size = info->start[0] + info->size - info->start[i]; + size = info->start[0] + info->size - info->start[i]; erased = 1; - flash = (volatile unsigned long *)info->start[i]; - size = size >> 2; /* divide by 4 for longword access */ - for (k=0; k<size; k++) - { - if (*flash++ != 0xffffffff) - { - erased = 0; - break; - } - } + flash = (volatile unsigned long *) info->start[i]; + size = size >> 2; /* divide by 4 for longword access */ + for (k = 0; k < size; k++) { + if (*flash++ != 0xffffffff) { + erased = 0; + break; + } + } if ((i % 5) == 0) printf ("\n"); @@ -365,8 +462,7 @@ void flash_print_info (flash_info_t *info) if ((i % 5) == 0) printf ("\n "); printf (" %08lX%s", - info->start[i], - info->protect[i] ? " (RO)" : " "); + info->start[i], info->protect[i] ? " (RO)" : " "); #endif } printf ("\n"); @@ -379,7 +475,7 @@ void flash_print_info (flash_info_t *info) * 1 - write timeout * 2 - Flash not erased */ -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) +int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) { ulong wp; ulong cp; @@ -387,45 +483,69 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) cfiword_t cword; int i, rc; +#ifdef CFG_FLASH_USE_BUFFER_WRITE + int buffered_size; +#endif + int x8mode = 0; + + /* special handling of 16 bit devices in 8 bit mode */ + if ((info->interface == FLASH_CFI_X8X16) + && (info->chipwidth == FLASH_CFI_BY8)) { + switch (info->vendor) { + case CFI_CMDSET_INTEL_STANDARD: + case CFI_CMDSET_INTEL_EXTENDED: + x8mode = info->portwidth; + info->portwidth >>= 1; /* XXX - Need to test on x9/x16 in parallel. */ + /*info->portwidth = FLASH_CFI_8BIT; */ /* XXX - Need to test on x9/x16 in parallel. */ + break; + case CFI_CMDSET_AMD_STANDARD: + case CFI_CMDSET_AMD_EXTENDED: + default: + break; + } + } + /* get lower aligned address */ /* get lower aligned address */ wp = (addr & ~(info->portwidth - 1)); /* handle unaligned start */ - if((aln = addr - wp) != 0) { + if ((aln = addr - wp) != 0) { cword.l = 0; cp = wp; - for(i=0;i<aln; ++i, ++cp) - flash_add_byte(info, &cword, (*(uchar *)cp)); + for (i = 0; i < aln; ++i, ++cp) + flash_add_byte (info, &cword, (*(uchar *) cp)); - for(; (i< info->portwidth) && (cnt > 0) ; i++) { - flash_add_byte(info, &cword, *src++); + for (; (i < info->portwidth) && (cnt > 0); i++) { + flash_add_byte (info, &cword, *src++); cnt--; cp++; } - for(; (cnt == 0) && (i < info->portwidth); ++i, ++cp) - flash_add_byte(info, &cword, (*(uchar *)cp)); - if((rc = flash_write_cfiword(info, wp, cword)) != 0) + for (; (cnt == 0) && (i < info->portwidth); ++i, ++cp) + flash_add_byte (info, &cword, (*(uchar *) cp)); + if ((rc = flash_write_cfiword (info, wp, cword)) != 0) return rc; wp = cp; } + /* handle the aligned part */ #ifdef CFG_FLASH_USE_BUFFER_WRITE - while(cnt >= info->portwidth) { - i = info->buffer_size > cnt? cnt: info->buffer_size; - if((rc = flash_write_cfibuffer(info, wp, src,i)) != ERR_OK) + buffered_size = (info->portwidth / info->chipwidth); + buffered_size *= info->buffer_size; + while (cnt >= info->portwidth) { + i = buffered_size > cnt ? cnt : buffered_size; + if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK) return rc; wp += i; src += i; - cnt -=i; + cnt -= i; } #else - /* handle the aligned part */ - while(cnt >= info->portwidth) { + while (cnt >= info->portwidth) { cword.l = 0; - for(i = 0; i < info->portwidth; i++) { - flash_add_byte(info, &cword, *src++); + for (i = 0; i < info->portwidth; i++) { + flash_add_byte (info, &cword, *src++); } - if((rc = flash_write_cfiword(info, wp, cword)) != 0) + if ((rc = flash_write_cfiword (info, wp, cword)) != 0) return rc; wp += info->portwidth; cnt -= info->portwidth; @@ -439,154 +559,184 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) * handle unaligned tail bytes */ cword.l = 0; - for (i=0, cp=wp; (i<info->portwidth) && (cnt>0); ++i, ++cp) { - flash_add_byte(info, &cword, *src++); + for (i = 0, cp = wp; (i < info->portwidth) && (cnt > 0); ++i, ++cp) { + flash_add_byte (info, &cword, *src++); --cnt; } - for (; i<info->portwidth; ++i, ++cp) { - flash_add_byte(info, & cword, (*(uchar *)cp)); + for (; i < info->portwidth; ++i, ++cp) { + flash_add_byte (info, &cword, (*(uchar *) cp)); } - return flash_write_cfiword(info, wp, cword); + /* special handling of 16 bit devices in 8 bit mode */ + if (x8mode) { + info->portwidth = x8mode;; + } + return flash_write_cfiword (info, wp, cword); } /*----------------------------------------------------------------------- */ #ifdef CFG_FLASH_PROTECTION -int flash_real_protect(flash_info_t *info, long sector, int prot) +int flash_real_protect (flash_info_t * info, long sector, int prot) { int retcode = 0; - flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT); - if(prot) - flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT_SET); + flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT); + if (prot) + flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET); else - flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT_CLEAR); + flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR); - if((retcode = flash_full_status_check(info, sector, info->erase_blk_tout, - prot?"protect":"unprotect")) == 0) { + if ((retcode = + flash_full_status_check (info, sector, info->erase_blk_tout, + prot ? "protect" : "unprotect")) == 0) { info->protect[sector] = prot; /* Intel's unprotect unprotects all locking */ - if(prot == 0) { + if (prot == 0) { flash_sect_t i; - for(i = 0 ; i<info->sector_count; i++) { - if(info->protect[i]) - flash_real_protect(info, i, 1); + + for (i = 0; i < info->sector_count; i++) { + if (info->protect[i]) + flash_real_protect (info, i, 1); } } } return retcode; - } +} + /*----------------------------------------------------------------------- * flash_read_user_serial - read the OneTimeProgramming cells */ -void flash_read_user_serial(flash_info_t * info, void * buffer, int offset, int len) +void flash_read_user_serial (flash_info_t * info, void *buffer, int offset, + int len) { - uchar * src; - uchar * dst; + uchar *src; + uchar *dst; dst = buffer; - src = flash_make_addr(info, 0, FLASH_OFFSET_USER_PROTECTION); - flash_write_cmd(info,0, 0, FLASH_CMD_READ_ID); - memcpy(dst,src + offset,len); - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); + src = flash_make_addr (info, 0, FLASH_OFFSET_USER_PROTECTION); + flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID); + memcpy (dst, src + offset, len); + flash_write_cmd (info, 0, 0, FLASH_CMD_RESET); } + /* * flash_read_factory_serial - read the device Id from the protection area */ -void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len) +void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset, + int len) { - uchar * src; + uchar *src; - src = flash_make_addr(info, 0, FLASH_OFFSET_INTEL_PROTECTION); - flash_write_cmd(info,0, 0, FLASH_CMD_READ_ID); - memcpy(buffer,src + offset,len); - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); + src = flash_make_addr (info, 0, FLASH_OFFSET_INTEL_PROTECTION); + flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID); + memcpy (buffer, src + offset, len); + flash_write_cmd (info, 0, 0, FLASH_CMD_RESET); } #endif /* CFG_FLASH_PROTECTION */ -static int flash_poll_status(flash_info_t * info, flash_sect_t sect) +/* + * flash_is_busy - check to see if the flash is busy + * This routine checks the status of the chip and returns true if the chip is busy + */ +static int flash_is_busy (flash_info_t * info, flash_sect_t sect) { int retval; - switch(info->vendor) { + + switch (info->vendor) { case CFI_CMDSET_INTEL_STANDARD: case CFI_CMDSET_INTEL_EXTENDED: - retval = !flash_isset(info, sect, 0, FLASH_STATUS_DONE); + retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE); break; case CFI_CMDSET_AMD_STANDARD: case CFI_CMDSET_AMD_EXTENDED: - retval = flash_toggle(info, sect, 0, AMD_STATUS_TOGGLE); + retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE); break; default: retval = 0; } + debug ("flash_is_busy: %d\n", retval); return retval; } + /*----------------------------------------------------------------------- * wait for XSR.7 to be set. Time out with an error if it does not. * This routine does not set the flash to read-array mode. */ -static int flash_status_check(flash_info_t * info, flash_sect_t sector, ulong tout, char * prompt) +static int flash_status_check (flash_info_t * info, flash_sect_t sector, + ulong tout, char *prompt) { ulong start; /* Wait for command completion */ start = get_timer (0); - while (flash_poll_status(info, sector)) { - if (get_timer(start) > info->erase_blk_tout) { - printf("Flash %s timeout at address %lx\n", prompt, info->start[sector]); - flash_write_cmd(info, sector, 0, info->cmd_reset); + while (flash_is_busy (info, sector)) { + if (get_timer (start) > info->erase_blk_tout * CFG_HZ) { + printf ("Flash %s timeout at address %lx data %lx\n", + prompt, info->start[sector], + flash_read_long (info, sector, 0)); + flash_write_cmd (info, sector, 0, info->cmd_reset); return ERR_TIMOUT; } } return ERR_OK; } + /*----------------------------------------------------------------------- * Wait for XSR.7 to be set, if it times out print an error, otherwise do a full status check. * This routine sets the flash to read-array mode. */ -static int flash_full_status_check(flash_info_t * info, flash_sect_t sector, ulong tout, char * prompt) +static int flash_full_status_check (flash_info_t * info, flash_sect_t sector, + ulong tout, char *prompt) { int retcode; - retcode = flash_status_check(info, sector, tout, prompt); - switch(info->vendor) { + + retcode = flash_status_check (info, sector, tout, prompt); + switch (info->vendor) { case CFI_CMDSET_INTEL_EXTENDED: case CFI_CMDSET_INTEL_STANDARD: - if((retcode == ERR_OK) && !flash_isequal(info,sector, 0, FLASH_STATUS_DONE)) { + if ((retcode != ERR_OK) + && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) { retcode = ERR_INVAL; - printf("Flash %s error at address %lx\n", prompt,info->start[sector]); - if(flash_isset(info, sector, 0, FLASH_STATUS_ECLBS | FLASH_STATUS_PSLBS)){ - printf("Command Sequence Error.\n"); - } else if(flash_isset(info, sector, 0, FLASH_STATUS_ECLBS)){ - printf("Block Erase Error.\n"); + printf ("Flash %s error at address %lx\n", prompt, + info->start[sector]); + if (flash_isset + (info, sector, 0, + FLASH_STATUS_ECLBS | FLASH_STATUS_PSLBS)) { + printf ("Command Sequence Error.\n"); + } else if (flash_isset + (info, sector, 0, FLASH_STATUS_ECLBS)) { + printf ("Block Erase Error.\n"); retcode = ERR_NOT_ERASED; - } else if (flash_isset(info, sector, 0, FLASH_STATUS_PSLBS)) { - printf("Locking Error\n"); + } else if (flash_isset + (info, sector, 0, FLASH_STATUS_PSLBS)) { + printf ("Locking Error\n"); } - if(flash_isset(info, sector, 0, FLASH_STATUS_DPS)){ - printf("Block locked.\n"); - retcode = ERR_PROTECTED; - } - if(flash_isset(info, sector, 0, FLASH_STATUS_VPENS)) - printf("Vpp Low Error.\n"); + if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) { + printf ("Block locked.\n"); + retcode = ERR_PROTECTED; + } + if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS)) + printf ("Vpp Low Error.\n"); } - flash_write_cmd(info, sector, 0, FLASH_CMD_RESET); + flash_write_cmd (info, sector, 0, FLASH_CMD_RESET); break; default: break; } return retcode; } + /*----------------------------------------------------------------------- */ -static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c) +static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c) { - switch(info->portwidth) { + switch (info->portwidth) { case FLASH_CFI_8BIT: cword->c = c; break; @@ -606,47 +756,64 @@ static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c) /*----------------------------------------------------------------------- * make a proper sized command based on the port and chip widths */ -static void flash_make_cmd(flash_info_t * info, uchar cmd, void * cmdbuf) +static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf) { int i; - uchar *cp = (uchar *)cmdbuf; - for(i=0; i< info->portwidth; i++) - *cp++ = ((i+1) % info->chipwidth) ? '\0':cmd; + +#if defined(__LITTLE_ENDIAN) + ushort stmp; +#endif + uchar *cp = (uchar *) cmdbuf; + + for (i = 0; i < info->portwidth; i++) + *cp++ = ((i + 1) % info->chipwidth) ? '\0' : cmd; +#if defined(__LITTLE_ENDIAN) + if (info->portwidth == 2) { + stmp = *(ushort *) cmdbuf; + *(ushort *) cmdbuf = swab16 (stmp); + } +#endif } /* * Write a proper sized command to the correct address */ -static void flash_write_cmd(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd) +static void flash_write_cmd (flash_info_t * info, flash_sect_t sect, + uint offset, uchar cmd) { volatile cfiptr_t addr; cfiword_t cword; - addr.cp = flash_make_addr(info, sect, offset); - flash_make_cmd(info, cmd, &cword); - switch(info->portwidth) { + + addr.cp = flash_make_addr (info, sect, offset); + flash_make_cmd (info, cmd, &cword); + switch (info->portwidth) { case FLASH_CFI_8BIT: - debug("fwc addr %p cmd %x %x 8bit x %d bit\n",addr.cp, cmd, cword.c, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); + debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr.cp, cmd, + cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); *addr.cp = cword.c; break; case FLASH_CFI_16BIT: - debug("fwc addr %p cmd %x %4.4x 16bit x %d bit\n",addr.wp, cmd, cword.w, + debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr.wp, + cmd, cword.w, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); *addr.wp = cword.w; break; case FLASH_CFI_32BIT: - debug("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n",addr.lp, cmd, cword.l, + debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr.lp, + cmd, cword.l, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); *addr.lp = cword.l; break; case FLASH_CFI_64BIT: #ifdef DEBUG - { + { char str[20]; - print_longlong(str, cword.ll); - printf("fwc addr %p cmd %x %s 64 bit x %d bit\n",addr.llp, cmd, str, + print_longlong (str, cword.ll); + + debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n", + addr.llp, cmd, str, info->chipwidth << CFI_FLASH_SHIFT_WIDTH); } #endif @@ -655,43 +822,47 @@ static void flash_write_cmd(flash_info_t * info, flash_sect_t sect, uint offset, } } -static void flash_unlock_seq(flash_info_t *info) +static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect) { - flash_write_cmd(info, 0, 0x555, 0xAA); - flash_write_cmd(info, 0, 0x2AA, 0x55); + flash_write_cmd (info, sect, 0x555, 0xAA); + flash_write_cmd (info, sect, 0x2AA, 0x55); } + /*----------------------------------------------------------------------- */ -static int flash_isequal(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd) +static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset, + uchar cmd) { cfiptr_t cptr; cfiword_t cword; int retval; - cptr.cp = flash_make_addr(info, sect, offset); - flash_make_cmd(info, cmd, &cword); - debug("is= cmd %x(%c) addr %p ", cmd,cmd, cptr.cp); - switch(info->portwidth) { + cptr.cp = flash_make_addr (info, sect, offset); + flash_make_cmd (info, cmd, &cword); + + debug ("is= cmd %x(%c) addr %p ", cmd, cmd, cptr.cp); + switch (info->portwidth) { case FLASH_CFI_8BIT: - debug("is= %x %x\n", cptr.cp[0], cword.c); + debug ("is= %x %x\n", cptr.cp[0], cword.c); retval = (cptr.cp[0] == cword.c); break; case FLASH_CFI_16BIT: - debug("is= %4.4x %4.4x\n", cptr.wp[0], cword.w); + debug ("is= %4.4x %4.4x\n", cptr.wp[0], cword.w); retval = (cptr.wp[0] == cword.w); break; case FLASH_CFI_32BIT: - debug("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l); + debug ("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l); retval = (cptr.lp[0] == cword.l); break; case FLASH_CFI_64BIT: #ifdef DEBUG - { + { char str1[20]; char str2[20]; - print_longlong(str1, cptr.llp[0]); - print_longlong(str2, cword.ll); - printf("is= %s %s\n", str1, str2); + + print_longlong (str1, cptr.llp[0]); + print_longlong (str2, cword.ll); + debug ("is= %s %s\n", str1, str2); } #endif retval = (cptr.llp[0] == cword.ll); @@ -702,16 +873,19 @@ static int flash_isequal(flash_info_t * info, flash_sect_t sect, uint offset, uc } return retval; } + /*----------------------------------------------------------------------- */ -static int flash_isset(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd) +static int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset, + uchar cmd) { cfiptr_t cptr; cfiword_t cword; int retval; - cptr.cp = flash_make_addr(info, sect, offset); - flash_make_cmd(info, cmd, &cword); - switch(info->portwidth) { + + cptr.cp = flash_make_addr (info, sect, offset); + flash_make_cmd (info, cmd, &cword); + switch (info->portwidth) { case FLASH_CFI_8BIT: retval = ((cptr.cp[0] & cword.c) == cword.c); break; @@ -723,6 +897,7 @@ static int flash_isset(flash_info_t * info, flash_sect_t sect, uint offset, ucha break; case FLASH_CFI_64BIT: retval = ((cptr.llp[0] & cword.ll) == cword.ll); + break; default: retval = 0; break; @@ -732,14 +907,16 @@ static int flash_isset(flash_info_t * info, flash_sect_t sect, uint offset, ucha /*----------------------------------------------------------------------- */ -static int flash_toggle(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd) +static int flash_toggle (flash_info_t * info, flash_sect_t sect, uint offset, + uchar cmd) { cfiptr_t cptr; cfiword_t cword; int retval; - cptr.cp = flash_make_addr(info, sect, offset); - flash_make_cmd(info, cmd, &cword); - switch(info->portwidth) { + + cptr.cp = flash_make_addr (info, sect, offset); + flash_make_cmd (info, cmd, &cword); + switch (info->portwidth) { case FLASH_CFI_8BIT: retval = ((cptr.cp[0] & cword.c) != (cptr.cp[0] & cword.c)); break; @@ -750,7 +927,8 @@ static int flash_toggle(flash_info_t * info, flash_sect_t sect, uint offset, uch retval = ((cptr.lp[0] & cword.l) != (cptr.lp[0] & cword.l)); break; case FLASH_CFI_64BIT: - retval = ((cptr.llp[0] & cword.ll) != (cptr.llp[0] & cword.ll)); + retval = ((cptr.llp[0] & cword.ll) != + (cptr.llp[0] & cword.ll)); break; default: retval = 0; @@ -764,55 +942,71 @@ static int flash_toggle(flash_info_t * info, flash_sect_t sect, uint offset, uch * http://www.jedec.org/download/search/jesd68.pdf * */ -static int flash_detect_cfi(flash_info_t * info) +static int flash_detect_cfi (flash_info_t * info) { - - puts("flash detect cfi\n"); - - for(info->portwidth=FLASH_CFI_8BIT; info->portwidth <= FLASH_CFI_64BIT; - info->portwidth <<= 1) { - /* for(info->chipwidth = info->portwidth; - info->chipwidth > 0; - info->chipwidth >>= 1) { */ - for(info->chipwidth =FLASH_CFI_BY8; - info->chipwidth <= info->portwidth; - info->chipwidth <<= 1) { - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); - flash_write_cmd(info, 0, FLASH_OFFSET_CFI, FLASH_CMD_CFI); - if(flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP,'Q') && - flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') && - flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) { - debug("found port %d chip %d ", info->portwidth, info->chipwidth); - debug("port %d bits chip %d bits\n", info->portwidth << CFI_FLASH_SHIFT_WIDTH, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); + debug ("flash detect cfi\n"); + + for (info->portwidth = FLASH_CFI_8BIT; + info->portwidth <= FLASH_CFI_64BIT; info->portwidth <<= 1) { + for (info->chipwidth = FLASH_CFI_BY8; + info->chipwidth <= info->portwidth; + info->chipwidth <<= 1) { + flash_write_cmd (info, 0, 0, FLASH_CMD_RESET); + flash_write_cmd (info, 0, FLASH_OFFSET_CFI, + FLASH_CMD_CFI); + if (flash_isequal + (info, 0, FLASH_OFFSET_CFI_RESP, 'Q') + && flash_isequal (info, 0, + FLASH_OFFSET_CFI_RESP + 1, 'R') + && flash_isequal (info, 0, + FLASH_OFFSET_CFI_RESP + 2, + 'Y')) { + info->interface = + flash_read_ushort (info, 0, + FLASH_OFFSET_INTERFACE); + debug ("device interface is %d\n", + info->interface); + debug ("found port %d chip %d ", + info->portwidth, info->chipwidth); + debug ("port %d bits chip %d bits\n", + info-> + portwidth << CFI_FLASH_SHIFT_WIDTH, + info-> + chipwidth << CFI_FLASH_SHIFT_WIDTH); return 1; } } } - puts("not found\n"); + debug ("not found\n"); return 0; } + /* * The following code cannot be run from FLASH! * */ static ulong flash_get_size (ulong base, int banknum) { - flash_info_t * info = &flash_info[banknum]; + flash_info_t *info = &flash_info[banknum]; int i, j; flash_sect_t sect_cnt; unsigned long sector; unsigned long tmp; int size_ratio; uchar num_erase_regions; - int erase_region_size; - int erase_region_count; + int erase_region_size; + int erase_region_count; info->start[0] = base; - if(flash_detect_cfi(info)){ - info->vendor = flash_read_ushort(info, 0, FLASH_OFFSET_PRIMARY_VENDOR); - switch(info->vendor) { + if (flash_detect_cfi (info)) { + info->vendor = + flash_read_ushort (info, 0, + FLASH_OFFSET_PRIMARY_VENDOR); +#ifdef DEBUG + flash_printqry (info, 0); +#endif + switch (info->vendor) { case CFI_CMDSET_INTEL_STANDARD: case CFI_CMDSET_INTEL_EXTENDED: default: @@ -824,65 +1018,95 @@ static ulong flash_get_size (ulong base, int banknum) break; } - debug("manufacturer is %d\n", info->vendor); + debug ("manufacturer is %d\n", info->vendor); size_ratio = info->portwidth / info->chipwidth; - num_erase_regions = flash_read_uchar(info, FLASH_OFFSET_NUM_ERASE_REGIONS); - debug("size_ration %d port %d bits chip %d bits\n", size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH, - info->chipwidth << CFI_FLASH_SHIFT_WIDTH); - debug("found %d erase regions\n", num_erase_regions); + /* if the chip is x8/x16 reduce the ratio by half */ + if ((info->interface == FLASH_CFI_X8X16) + && (info->chipwidth == FLASH_CFI_BY8)) { + size_ratio >>= 1; + } + num_erase_regions = + flash_read_uchar (info, + FLASH_OFFSET_NUM_ERASE_REGIONS); + debug ("size_ratio %d port %d bits chip %d bits\n", + size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH, + info->chipwidth << CFI_FLASH_SHIFT_WIDTH); + debug ("found %d erase regions\n", num_erase_regions); sect_cnt = 0; sector = base; - for(i = 0 ; i < num_erase_regions; i++) { - if(i > NUM_ERASE_REGIONS) { - printf("%d erase regions found, only %d used\n", - num_erase_regions, NUM_ERASE_REGIONS); + for (i = 0; i < num_erase_regions; i++) { + if (i > NUM_ERASE_REGIONS) { + printf ("%d erase regions found, only %d used\n", num_erase_regions, NUM_ERASE_REGIONS); break; } - tmp = flash_read_long(info, 0, FLASH_OFFSET_ERASE_REGIONS + i*4); - erase_region_size = (tmp & 0xffff)? ((tmp & 0xffff) * 256): 128; + tmp = flash_read_long (info, 0, + FLASH_OFFSET_ERASE_REGIONS + + i * 4); + erase_region_size = + (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128; tmp >>= 16; - erase_region_count = (tmp & 0xffff) +1; - for(j = 0; j< erase_region_count; j++) { + erase_region_count = (tmp & 0xffff) + 1; + printf ("erase_region_count = %d erase_region_size = %d\n", erase_region_count, erase_region_size); + for (j = 0; j < erase_region_count; j++) { info->start[sect_cnt] = sector; sector += (erase_region_size * size_ratio); - info->protect[sect_cnt] = flash_isset(info, sect_cnt, FLASH_OFFSET_PROTECT, FLASH_STATUS_PROTECT); + info->protect[sect_cnt] = + flash_isset (info, sect_cnt, + FLASH_OFFSET_PROTECT, + FLASH_STATUS_PROTECT); sect_cnt++; } } info->sector_count = sect_cnt; /* multiply the size by the number of chips */ - info->size = (1 << flash_read_uchar(info, FLASH_OFFSET_SIZE)) * size_ratio; - info->buffer_size = (1 << flash_read_ushort(info, 0, FLASH_OFFSET_BUFFER_SIZE)); - tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_ETOUT); - info->erase_blk_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_EMAX_TOUT))); - tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_WBTOUT); - info->buffer_write_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_WBMAX_TOUT))); - tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_WTOUT); - info->write_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_WMAX_TOUT)))/ 1000; + info->size = + (1 << flash_read_uchar (info, FLASH_OFFSET_SIZE)) * + size_ratio; + info->buffer_size = + (1 << + flash_read_ushort (info, 0, + FLASH_OFFSET_BUFFER_SIZE)); + tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_ETOUT); + info->erase_blk_tout = + (tmp * + (1 << + flash_read_uchar (info, FLASH_OFFSET_EMAX_TOUT))); + tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_WBTOUT); + info->buffer_write_tout = + (tmp * + (1 << + flash_read_uchar (info, FLASH_OFFSET_WBMAX_TOUT))); + tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_WTOUT); + info->write_tout = + (tmp * + (1 << + flash_read_uchar (info, + FLASH_OFFSET_WMAX_TOUT))) / 1000; info->flash_id = FLASH_MAN_CFI; } - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); - return(info->size); + flash_write_cmd (info, 0, 0, FLASH_CMD_RESET); + return (info->size); } /*----------------------------------------------------------------------- */ -static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword) +static int flash_write_cfiword (flash_info_t * info, ulong dest, + cfiword_t cword) { cfiptr_t ctladdr; cfiptr_t cptr; int flag; - ctladdr.cp = flash_make_addr(info, 0, 0); - cptr.cp = (uchar *)dest; + ctladdr.cp = flash_make_addr (info, 0, 0); + cptr.cp = (uchar *) dest; /* Check if Flash is (sufficiently) erased */ - switch(info->portwidth) { + switch (info->portwidth) { case FLASH_CFI_8BIT: flag = ((cptr.cp[0] & cword.c) == cword.c); break; @@ -890,7 +1114,7 @@ static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword) flag = ((cptr.wp[0] & cword.w) == cword.w); break; case FLASH_CFI_32BIT: - flag = ((cptr.lp[0] & cword.l) == cword.l); + flag = ((cptr.lp[0] & cword.l) == cword.l); break; case FLASH_CFI_64BIT: flag = ((cptr.lp[0] & cword.ll) == cword.ll); @@ -898,26 +1122,26 @@ static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword) default: return 2; } - if(!flag) + if (!flag) return 2; /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); + flag = disable_interrupts (); - switch(info->vendor) { + switch (info->vendor) { case CFI_CMDSET_INTEL_EXTENDED: case CFI_CMDSET_INTEL_STANDARD: - flash_write_cmd(info, 0, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd(info, 0, 0, FLASH_CMD_WRITE); + flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE); break; case CFI_CMDSET_AMD_EXTENDED: case CFI_CMDSET_AMD_STANDARD: - flash_unlock_seq(info); - flash_write_cmd(info, 0, 0x555, AMD_CMD_WRITE); + flash_unlock_seq (info, 0); + flash_write_cmd (info, 0, 0x555, AMD_CMD_WRITE); break; } - switch(info->portwidth) { + switch (info->portwidth) { case FLASH_CFI_8BIT: cptr.cp[0] = cword.c; break; @@ -933,10 +1157,10 @@ static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword) } /* re-enable interrupts if necessary */ - if(flag) - enable_interrupts(); + if (flag) + enable_interrupts (); - return flash_full_status_check(info, 0, info->write_tout, "write"); + return flash_full_status_check (info, 0, info->write_tout, "write"); } #ifdef CFG_FLASH_USE_BUFFER_WRITE @@ -945,17 +1169,19 @@ static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword) * when the passed address is greater or equal to the sector address * we have a match */ -static flash_sect_t find_sector(flash_info_t *info, ulong addr) +static flash_sect_t find_sector (flash_info_t * info, ulong addr) { flash_sect_t sector; - for(sector = info->sector_count - 1; sector >= 0; sector--) { - if(addr >= info->start[sector]) + + for (sector = info->sector_count - 1; sector >= 0; sector--) { + if (addr >= info->start[sector]) break; } return sector; } -static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, int len) +static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp, + int len) { flash_sect_t sector; int cnt; @@ -964,13 +1190,15 @@ static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, in volatile cfiptr_t dst; src.cp = cp; - dst.cp = (uchar *)dest; - sector = find_sector(info, dest); - flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd(info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER); - if((retcode = flash_status_check(info, sector, info->buffer_write_tout, - "write to buffer")) == ERR_OK) { - switch(info->portwidth) { + dst.cp = (uchar *) dest; + sector = find_sector (info, dest); + flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER); + if ((retcode = + flash_status_check (info, sector, info->buffer_write_tout, + "write to buffer")) == ERR_OK) { + /* reduce the number of loops by the width of the port */ + switch (info->portwidth) { case FLASH_CFI_8BIT: cnt = len; break; @@ -987,9 +1215,9 @@ static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, in return ERR_INVAL; break; } - flash_write_cmd(info, sector, 0, (uchar)cnt-1); - while(cnt-- > 0) { - switch(info->portwidth) { + flash_write_cmd (info, sector, 0, (uchar) cnt - 1); + while (cnt-- > 0) { + switch (info->portwidth) { case FLASH_CFI_8BIT: *dst.cp++ = *src.cp++; break; @@ -1007,11 +1235,14 @@ static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, in break; } } - flash_write_cmd(info, sector, 0, FLASH_CMD_WRITE_BUFFER_CONFIRM); - retcode = flash_full_status_check(info, sector, info->buffer_write_tout, - "buffer write"); + flash_write_cmd (info, sector, 0, + FLASH_CMD_WRITE_BUFFER_CONFIRM); + retcode = + flash_full_status_check (info, sector, + info->buffer_write_tout, + "buffer write"); } - flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS); return retcode; } #endif /* CFG_USE_FLASH_BUFFER_WRITE */ |
