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author | Wolfgang Denk <wd@pollux.denx.de> | 2005-10-09 01:41:48 +0200 |
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committer | Wolfgang Denk <wd@pollux.denx.de> | 2005-10-09 01:41:48 +0200 |
commit | 3df5bea0b0bddc196bf952c51d1dd54d966b82ba (patch) | |
tree | bb76917676431534c036b74511cfccb264fbcf12 /board/amirix/ap1000/flash.c | |
parent | 7521af1c7d95ff087a4f7636ed050f4d4be91b59 (diff) | |
download | u-boot-imx-3df5bea0b0bddc196bf952c51d1dd54d966b82ba.zip u-boot-imx-3df5bea0b0bddc196bf952c51d1dd54d966b82ba.tar.gz u-boot-imx-3df5bea0b0bddc196bf952c51d1dd54d966b82ba.tar.bz2 |
Add support for NetSilicon NS7520 processor.
Patch by Art Shipkowski, 12 May 2005
Cleanup.
Diffstat (limited to 'board/amirix/ap1000/flash.c')
-rw-r--r-- | board/amirix/ap1000/flash.c | 1220 |
1 files changed, 635 insertions, 585 deletions
diff --git a/board/amirix/ap1000/flash.c b/board/amirix/ap1000/flash.c index f07edf0..1a3b252 100644 --- a/board/amirix/ap1000/flash.c +++ b/board/amirix/ap1000/flash.c @@ -94,275 +94,273 @@ #define FLASH_OFFSET_USER_PROTECTION 0x85 #define FLASH_OFFSET_INTEL_PROTECTION 0x81 - #define FLASH_MAN_CFI 0x01000000 - - - typedef union { - unsigned char c; - unsigned short w; - unsigned long l; + unsigned char c; + unsigned short w; + unsigned long l; } cfiword_t; typedef union { - unsigned char * cp; - unsigned short *wp; - unsigned long *lp; + unsigned char *cp; + unsigned short *wp; + unsigned long *lp; } cfiptr_t; #define NUM_ERASE_REGIONS 4 -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 */ - - -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, int sect, uchar offset, uchar cmd); -static int flash_isequal(flash_info_t * info, int sect, uchar offset, uchar cmd); -static int flash_isset(flash_info_t * info, int sect, uchar 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, int sect, uchar offset, + uchar cmd); +static int flash_isequal (flash_info_t * info, int sect, uchar offset, + uchar cmd); +static int flash_isset (flash_info_t * info, int sect, uchar 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, ulong 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, ulong 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 */ -uchar * flash_make_addr(flash_info_t * info, int sect, int offset) +uchar *flash_make_addr (flash_info_t * info, int sect, int offset) { - return ((uchar *)(info->start[sect] + (offset * info->chipwidth))); + return ((uchar *) (info->start[sect] + (offset * info->chipwidth))); } + /*----------------------------------------------------------------------- * read a character at a port width address */ -uchar flash_read_uchar(flash_info_t * info, uchar offset) +uchar flash_read_uchar (flash_info_t * info, uchar offset) { - if (info->portwidth == FLASH_CFI_8BIT) { - volatile uchar *cp; - uchar c; - cp = flash_make_addr(info, 0, offset); - c = *cp; + if (info->portwidth == FLASH_CFI_8BIT) { + volatile uchar *cp; + uchar c; + + cp = flash_make_addr (info, 0, offset); + c = *cp; #ifdef DEBUG_FLASH - printf("flash_read_uchar offset=%04x ptr=%08x c=%02x\n", - offset, (unsigned int)cp, c); + printf ("flash_read_uchar offset=%04x ptr=%08x c=%02x\n", + offset, (unsigned int) cp, c); #endif - return (c); - - } else if (info->portwidth == FLASH_CFI_16BIT) { - volatile ushort *sp; - ushort s; - uchar c; - sp = (ushort*)flash_make_addr(info, 0, offset); - s = *sp; - c = (uchar)s; + return (c); + + } else if (info->portwidth == FLASH_CFI_16BIT) { + volatile ushort *sp; + ushort s; + uchar c; + + sp = (ushort *) flash_make_addr (info, 0, offset); + s = *sp; + c = (uchar) s; #ifdef DEBUG_FLASH - printf("flash_read_uchar offset=%04x ptr=%08x s=%04x c=%02x\n", - offset, (unsigned int)sp, s, c); + printf ("flash_read_uchar offset=%04x ptr=%08x s=%04x c=%02x\n", offset, (unsigned int) sp, s, c); #endif - return (c); + return (c); - } + } - return 0; + return 0; } /*----------------------------------------------------------------------- * read a short word by swapping for ppc format. */ -ushort flash_read_ushort(flash_info_t * info, int sect, uchar offset) +ushort flash_read_ushort (flash_info_t * info, int sect, uchar offset) { - if (info->portwidth == FLASH_CFI_8BIT) { - volatile uchar *cp; - uchar c0, c1; - ushort s; - cp = flash_make_addr(info, 0, offset); - c1 = cp[2]; - c0 = cp[0]; - s = c1<<8 | c0; + if (info->portwidth == FLASH_CFI_8BIT) { + volatile uchar *cp; + uchar c0, c1; + ushort s; + + cp = flash_make_addr (info, 0, offset); + c1 = cp[2]; + c0 = cp[0]; + s = c1 << 8 | c0; #ifdef DEBUG_FLASH - printf("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n", - offset, (unsigned int)cp, c1, c0, s); + printf ("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n", offset, (unsigned int) cp, c1, c0, s); #endif - return (s); - - } else if (info->portwidth == FLASH_CFI_16BIT) { - volatile ushort *sp; - ushort s; - uchar c0, c1; - sp = (ushort*)flash_make_addr(info, 0, offset); - s = *sp; - c1 = (uchar)sp[1]; - c0 = (uchar)sp[0]; - s = c1<<8 | c0; + return (s); + + } else if (info->portwidth == FLASH_CFI_16BIT) { + volatile ushort *sp; + ushort s; + uchar c0, c1; + + sp = (ushort *) flash_make_addr (info, 0, offset); + s = *sp; + c1 = (uchar) sp[1]; + c0 = (uchar) sp[0]; + s = c1 << 8 | c0; #ifdef DEBUG_FLASH - printf("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n", - offset, (unsigned int)sp, c1, c0, s); + printf ("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n", offset, (unsigned int) sp, c1, c0, s); #endif - return (s); + return (s); - } + } - return 0; + return 0; } /*----------------------------------------------------------------------- * 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, int sect, uchar offset) +ulong flash_read_long (flash_info_t * info, int sect, uchar offset) { - if (info->portwidth == FLASH_CFI_8BIT) { - volatile uchar *cp; - uchar c0, c1, c2, c3; - ulong l; - cp = flash_make_addr(info, 0, offset); - c3 = cp[6]; - c2 = cp[4]; - c1 = cp[2]; - c0 = cp[0]; - l = c3<<24 | c2<<16 | c1<<8 | c0; + if (info->portwidth == FLASH_CFI_8BIT) { + volatile uchar *cp; + uchar c0, c1, c2, c3; + ulong l; + + cp = flash_make_addr (info, 0, offset); + c3 = cp[6]; + c2 = cp[4]; + c1 = cp[2]; + c0 = cp[0]; + l = c3 << 24 | c2 << 16 | c1 << 8 | c0; #ifdef DEBUG_FLASH - printf("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n", - offset, (unsigned int)cp, c3, c2, c1, c0, l); + printf ("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n", offset, (unsigned int) cp, c3, c2, c1, c0, l); #endif - return (l); - - } else if (info->portwidth == FLASH_CFI_16BIT) { - volatile ushort *sp; - uchar c0, c1, c2, c3; - ulong l; - sp = (ushort*)flash_make_addr(info, 0, offset); - c3 = (uchar)sp[3]; - c2 = (uchar)sp[2]; - c1 = (uchar)sp[1]; - c0 = (uchar)sp[0]; - l = c3<<24 | c2<<16 | c1<<8 | c0; + return (l); + + } else if (info->portwidth == FLASH_CFI_16BIT) { + volatile ushort *sp; + uchar c0, c1, c2, c3; + ulong l; + + sp = (ushort *) flash_make_addr (info, 0, offset); + c3 = (uchar) sp[3]; + c2 = (uchar) sp[2]; + c1 = (uchar) sp[1]; + c0 = (uchar) sp[0]; + l = c3 << 24 | c2 << 16 | c1 << 8 | c0; #ifdef DEBUG_FLASH - printf("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n", - offset, (unsigned int)sp, c3, c2, c1, c0, l); + printf ("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n", offset, (unsigned int) sp, c3, c2, c1, c0, l); #endif - return (l); + return (l); - } + } - return 0; + return 0; } /*----------------------------------------------------------------------- */ unsigned long flash_init (void) { - unsigned long size; - - size = 0; - - flash_info[0].flash_id = FLASH_UNKNOWN; - flash_info[0].portwidth = FLASH_CFI_16BIT; - flash_info[0].chipwidth = FLASH_CFI_16BIT; - size += flash_info[0].size = flash_get_size(CFG_PROGFLASH_BASE, 0); - if (flash_info[0].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 1, - flash_info[0].size, flash_info[0].size<<20); - }; - - flash_info[1].flash_id = FLASH_UNKNOWN; - flash_info[1].portwidth = FLASH_CFI_8BIT; - flash_info[1].chipwidth = FLASH_CFI_16BIT; - size += flash_info[1].size = flash_get_size(CFG_CONFFLASH_BASE, 1); - if (flash_info[1].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 2, - flash_info[1].size, flash_info[1].size<<20); - }; - - return (size); + unsigned long size; + + size = 0; + + flash_info[0].flash_id = FLASH_UNKNOWN; + flash_info[0].portwidth = FLASH_CFI_16BIT; + flash_info[0].chipwidth = FLASH_CFI_16BIT; + size += flash_info[0].size = flash_get_size (CFG_PROGFLASH_BASE, 0); + if (flash_info[0].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 1, flash_info[0].size, flash_info[0].size << 20); + }; + + flash_info[1].flash_id = FLASH_UNKNOWN; + flash_info[1].portwidth = FLASH_CFI_8BIT; + flash_info[1].chipwidth = FLASH_CFI_16BIT; + size += flash_info[1].size = flash_get_size (CFG_CONFFLASH_BASE, 1); + if (flash_info[1].flash_id == FLASH_UNKNOWN) { + printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 2, flash_info[1].size, flash_info[1].size << 20); + }; + + return (size); } /*----------------------------------------------------------------------- */ -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; - int sect; - - if( info->flash_id != FLASH_MAN_CFI) { - printf ("Can't erase unknown flash type - aborted\n"); - return 1; - } - if ((s_first < 0) || (s_first > s_last)) { - printf ("- no sectors to erase\n"); - return 1; - } - - prot = 0; - 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); - } else { - printf ("\n"); - } - - - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - 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); - - if(flash_full_status_check(info, sect, info->erase_blk_tout, "erase")) { - rcode = 1; - } else - printf("."); - } - } - printf (" done\n"); - return rcode; + int rcode = 0; + int prot; + int sect; + + if (info->flash_id != FLASH_MAN_CFI) { + printf ("Can't erase unknown flash type - aborted\n"); + return 1; + } + if ((s_first < 0) || (s_first > s_last)) { + printf ("- no sectors to erase\n"); + return 1; + } + + prot = 0; + 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); + } else { + printf ("\n"); + } + + for (sect = s_first; sect <= s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + 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); + + if (flash_full_status_check + (info, sect, info->erase_blk_tout, "erase")) { + rcode = 1; + } else + printf ("."); + } + } + printf (" done\n"); + return rcode; } /*----------------------------------------------------------------------- */ -void flash_print_info (flash_info_t *info) +void flash_print_info (flash_info_t * info) { - int i; - - if (info->flash_id != FLASH_MAN_CFI) { - printf ("missing or unknown FLASH type\n"); - return; - } - - printf("CFI conformant FLASH (x%d device in x%d mode)", - (info->chipwidth << 3 ), (info->portwidth << 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 (" Sector Start Addresses:"); - for (i=0; i<info->sector_count; ++i) { - if ((i % 5) == 0) - printf ("\n"); - printf (" %08lX%5s", - info->start[i], - info->protect[i] ? " (RO)" : " " - ); - } - printf ("\n"); - return; + int i; + + if (info->flash_id != FLASH_MAN_CFI) { + printf ("missing or unknown FLASH type\n"); + return; + } + + printf ("CFI conformant FLASH (x%d device in x%d mode)", + (info->chipwidth << 3), (info->portwidth << 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 (" Sector Start Addresses:"); + for (i = 0; i < info->sector_count; ++i) { + if ((i % 5) == 0) + printf ("\n"); + printf (" %08lX%5s", + info->start[i], info->protect[i] ? " (RO)" : " "); + } + printf ("\n"); + return; } /*----------------------------------------------------------------------- @@ -371,260 +369,281 @@ 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; - int aln; - cfiword_t cword; - int i, rc; - - /* get lower aligned address */ - wp = (addr & ~(info->portwidth - 1)); - - /* handle unaligned start */ - 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< 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) - return rc; - wp = cp; - } - + ulong wp; + ulong cp; + int aln; + cfiword_t cword; + int i, rc; + + /* get lower aligned address */ + wp = (addr & ~(info->portwidth - 1)); + + /* handle unaligned start */ + 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 < 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) + return rc; + wp = cp; + } #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) - return rc; - wp += i; - src += i; - cnt -=i; - } + while (cnt >= info->portwidth) { + i = info->buffer_size > cnt ? cnt : info->buffer_size; + if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK) + return rc; + wp += i; + src += i; + cnt -= i; + } #else - /* handle the aligned part */ - while(cnt >= info->portwidth) { - cword.l = 0; - for(i = 0; i < info->portwidth; i++) { - flash_add_byte(info, &cword, *src++); - } - if((rc = flash_write_cfiword(info, wp, cword)) != 0) - return rc; - wp += info->portwidth; - cnt -= info->portwidth; - } + /* handle the aligned part */ + while (cnt >= info->portwidth) { + cword.l = 0; + for (i = 0; i < info->portwidth; i++) { + flash_add_byte (info, &cword, *src++); + } + if ((rc = flash_write_cfiword (info, wp, cword)) != 0) + return rc; + wp += info->portwidth; + cnt -= info->portwidth; + } #endif /* CFG_FLASH_USE_BUFFER_WRITE */ - if (cnt == 0) { - return (0); - } - - /* - * 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++); - --cnt; - } - for (; i<info->portwidth; ++i, ++cp) { - flash_add_byte(info, & cword, (*(uchar *)cp)); - } - - return flash_write_cfiword(info, wp, cword); + if (cnt == 0) { + return (0); + } + + /* + * 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++); + --cnt; + } + for (; i < info->portwidth; ++i, ++cp) { + flash_add_byte (info, &cword, (*(uchar *) cp)); + } + + return flash_write_cfiword (info, wp, cword); } /*----------------------------------------------------------------------- */ -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); - else - 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) { - - info->protect[sector] = prot; - /* Intel's unprotect unprotects all locking */ - if(prot == 0) { - int i; - for(i = 0 ; i<info->sector_count; i++) { - if(info->protect[i]) - flash_real_protect(info, i, 1); - } - } - } - - return retcode; + 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); + else + 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) { + + info->protect[sector] = prot; + /* Intel's unprotect unprotects all locking */ + if (prot == 0) { + int i; + + for (i = 0; i < info->sector_count; i++) { + if (info->protect[i]) + flash_real_protect (info, i, 1); + } + } + } + + return retcode; } + /*----------------------------------------------------------------------- * 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, ulong sector, ulong tout, char * prompt) +static int flash_status_check (flash_info_t * info, ulong sector, ulong tout, + char *prompt) { - ulong start; - - /* Wait for command completion */ - start = get_timer (0); - while(!flash_isset(info, sector, 0, FLASH_STATUS_DONE)) { - 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, FLASH_CMD_RESET); - return ERR_TIMOUT; - } - } - return ERR_OK; + ulong start; + + /* Wait for command completion */ + start = get_timer (0); + while (!flash_isset (info, sector, 0, FLASH_STATUS_DONE)) { + 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, FLASH_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, ulong sector, ulong tout, char * prompt) +static int flash_full_status_check (flash_info_t * info, ulong sector, + ulong tout, char *prompt) { - int retcode; - retcode = flash_status_check(info, sector, tout, prompt); - 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"); - retcode = ERR_NOT_ERASED; - } 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"); - } - flash_write_cmd(info, sector, 0, FLASH_CMD_RESET); - return retcode; + int retcode; + + retcode = flash_status_check (info, sector, tout, prompt); + 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"); + retcode = ERR_NOT_ERASED; + } 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"); + } + flash_write_cmd (info, sector, 0, FLASH_CMD_RESET); + 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) { - case FLASH_CFI_8BIT: - cword->c = c; - break; - case FLASH_CFI_16BIT: - cword->w = (cword->w << 8) | c; - break; - case FLASH_CFI_32BIT: - cword->l = (cword->l << 8) | c; - } + switch (info->portwidth) { + case FLASH_CFI_8BIT: + cword->c = c; + break; + case FLASH_CFI_16BIT: + cword->w = (cword->w << 8) | c; + break; + case FLASH_CFI_32BIT: + cword->l = (cword->l << 8) | 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 (info->portwidth == FLASH_CFI_8BIT && info->chipwidth == FLASH_CFI_16BIT) { - cp[0] = cmd; - } else if (info->portwidth == FLASH_CFI_16BIT && info->chipwidth == FLASH_CFI_16BIT) { - cp[0] = '\0'; - cp[1] = cmd; - }; + /*int i; */ + uchar *cp = (uchar *) cmdbuf; + + /* for(i=0; i< info->portwidth; i++) */ + /* *cp++ = ((i+1) % info->chipwidth) ? '\0':cmd; */ + if (info->portwidth == FLASH_CFI_8BIT + && info->chipwidth == FLASH_CFI_16BIT) { + cp[0] = cmd; + } else if (info->portwidth == FLASH_CFI_16BIT + && info->chipwidth == FLASH_CFI_16BIT) { + cp[0] = '\0'; + cp[1] = cmd; + }; } /* * Write a proper sized command to the correct address */ -static void flash_write_cmd(flash_info_t * info, int sect, uchar offset, uchar cmd) +static void flash_write_cmd (flash_info_t * info, int sect, uchar 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) { - case FLASH_CFI_8BIT: - *addr.cp = cword.c; - break; - case FLASH_CFI_16BIT: - *addr.wp = cword.w; - break; - case FLASH_CFI_32BIT: - *addr.lp = cword.l; - break; - } + volatile cfiptr_t addr; + cfiword_t cword; + + addr.cp = flash_make_addr (info, sect, offset); + flash_make_cmd (info, cmd, &cword); + switch (info->portwidth) { + case FLASH_CFI_8BIT: + *addr.cp = cword.c; + break; + case FLASH_CFI_16BIT: + *addr.wp = cword.w; + break; + case FLASH_CFI_32BIT: + *addr.lp = cword.l; + break; + } } /*----------------------------------------------------------------------- */ -static int flash_isequal(flash_info_t * info, int sect, uchar offset, uchar cmd) +static int flash_isequal (flash_info_t * info, int sect, uchar 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) { - case FLASH_CFI_8BIT: - retval = (cptr.cp[0] == cword.c); - break; - case FLASH_CFI_16BIT: - retval = (cptr.wp[0] == cword.w); - break; - case FLASH_CFI_32BIT: - retval = (cptr.lp[0] == cword.l); - break; - default: - retval = 0; - break; - } - return retval; + 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) { + case FLASH_CFI_8BIT: + retval = (cptr.cp[0] == cword.c); + break; + case FLASH_CFI_16BIT: + retval = (cptr.wp[0] == cword.w); + break; + case FLASH_CFI_32BIT: + retval = (cptr.lp[0] == cword.l); + break; + default: + retval = 0; + break; + } + return retval; } + /*----------------------------------------------------------------------- */ -static int flash_isset(flash_info_t * info, int sect, uchar offset, uchar cmd) +static int flash_isset (flash_info_t * info, int sect, uchar 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) { - case FLASH_CFI_8BIT: - retval = ((cptr.cp[0] & cword.c) == cword.c); - break; - case FLASH_CFI_16BIT: - retval = ((cptr.wp[0] & cword.w) == cword.w); - break; - case FLASH_CFI_32BIT: - retval = ((cptr.lp[0] & cword.l) == cword.l); - break; - default: - retval = 0; - break; - } - return retval; + 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) { + case FLASH_CFI_8BIT: + retval = ((cptr.cp[0] & cword.c) == cword.c); + break; + case FLASH_CFI_16BIT: + retval = ((cptr.wp[0] & cword.w) == cword.w); + break; + case FLASH_CFI_32BIT: + retval = ((cptr.lp[0] & cword.l) == cword.l); + break; + default: + retval = 0; + break; + } + return retval; } /*----------------------------------------------------------------------- @@ -632,152 +651,177 @@ static int flash_isset(flash_info_t * info, int sect, uchar offset, uchar cmd) * 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) { #if 0 - for(info->portwidth=FLASH_CFI_8BIT; info->portwidth <= FLASH_CFI_32BIT; - 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')) - return 1; - } - } + for (info->portwidth = FLASH_CFI_8BIT; + info->portwidth <= FLASH_CFI_32BIT; 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')) + return 1; + } + } #endif - 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')) { - return 1; - } else { - return 0; - }; + 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')) { + return 1; + } else { + 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]; - int i, j; - int sect_cnt; - unsigned long sector; - unsigned long tmp; - int size_ratio; - uchar num_erase_regions; - int erase_region_size; - int erase_region_count; - - info->start[0] = base; - - if(flash_detect_cfi(info)){ + flash_info_t *info = &flash_info[banknum]; + int i, j; + int sect_cnt; + unsigned long sector; + unsigned long tmp; + int size_ratio; + uchar num_erase_regions; + int erase_region_size; + int erase_region_count; + + info->start[0] = base; + + if (flash_detect_cfi (info)) { #ifdef DEBUG_FLASH - printf("portwidth=%d chipwidth=%d\n", info->portwidth, info->chipwidth); /* test-only */ + printf ("portwidth=%d chipwidth=%d\n", info->portwidth, info->chipwidth); /* test-only */ #endif - size_ratio = 1; // info->portwidth / info->chipwidth; - num_erase_regions = flash_read_uchar(info, FLASH_OFFSET_NUM_ERASE_REGIONS); + size_ratio = 1; /* info->portwidth / info->chipwidth; */ + num_erase_regions = + flash_read_uchar (info, + FLASH_OFFSET_NUM_ERASE_REGIONS); #ifdef DEBUG_FLASH - printf("found %d erase regions\n", num_erase_regions); + printf ("found %d erase regions\n", num_erase_regions); #endif - 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); - break; - } - tmp = flash_read_long(info, 0, FLASH_OFFSET_ERASE_REGIONS); - erase_region_count = (tmp & 0xffff) +1; - tmp >>= 16; - erase_region_size = (tmp & 0xffff)? ((tmp & 0xffff) * 256): 128; - 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); - 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->flash_id = FLASH_MAN_CFI; - } - - flash_write_cmd(info, 0, 0, FLASH_CMD_RESET); - return(info->size); + 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); + break; + } + tmp = flash_read_long (info, 0, + FLASH_OFFSET_ERASE_REGIONS); + erase_region_count = (tmp & 0xffff) + 1; + tmp >>= 16; + erase_region_size = + (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128; + 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); + 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->flash_id = FLASH_MAN_CFI; + } + + 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; - - - /* Check if Flash is (sufficiently) erased */ - switch(info->portwidth) { - case FLASH_CFI_8BIT: - flag = ((cptr.cp[0] & cword.c) == cword.c); - break; - case FLASH_CFI_16BIT: - flag = ((cptr.wp[0] & cword.w) == cword.w); - break; - case FLASH_CFI_32BIT: - flag = ((cptr.lp[0] & cword.l) == cword.l); - break; - default: - return 2; - } - if(!flag) - return 2; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - flash_write_cmd(info, 0, 0, FLASH_CMD_CLEAR_STATUS); - flash_write_cmd(info, 0, 0, FLASH_CMD_WRITE); - - switch(info->portwidth) { - case FLASH_CFI_8BIT: - cptr.cp[0] = cword.c; - break; - case FLASH_CFI_16BIT: - cptr.wp[0] = cword.w; - break; - case FLASH_CFI_32BIT: - cptr.lp[0] = cword.l; - break; - } - - /* re-enable interrupts if necessary */ - if(flag) - enable_interrupts(); - - return flash_full_status_check(info, 0, info->write_tout, "write"); + cfiptr_t ctladdr; + cfiptr_t cptr; + int flag; + + ctladdr.cp = flash_make_addr (info, 0, 0); + cptr.cp = (uchar *) dest; + + /* Check if Flash is (sufficiently) erased */ + switch (info->portwidth) { + case FLASH_CFI_8BIT: + flag = ((cptr.cp[0] & cword.c) == cword.c); + break; + case FLASH_CFI_16BIT: + flag = ((cptr.wp[0] & cword.w) == cword.w); + break; + case FLASH_CFI_32BIT: + flag = ((cptr.lp[0] & cword.l) == cword.l); + break; + default: + return 2; + } + if (!flag) + return 2; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts (); + + flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS); + flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE); + + switch (info->portwidth) { + case FLASH_CFI_8BIT: + cptr.cp[0] = cword.c; + break; + case FLASH_CFI_16BIT: + cptr.wp[0] = cword.w; + break; + case FLASH_CFI_32BIT: + cptr.lp[0] = cword.l; + break; + } + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts (); + + return flash_full_status_check (info, 0, info->write_tout, "write"); } #ifdef CFG_FLASH_USE_BUFFER_WRITE @@ -786,68 +830,74 @@ 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 int find_sector(flash_info_t *info, ulong addr) +static int find_sector (flash_info_t * info, ulong addr) { - int sector; - for(sector = info->sector_count - 1; sector >= 0; sector--) { - if(addr >= info->start[sector]) - break; - } - return sector; + int 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) { - int sector; - int cnt; - int retcode; - volatile cfiptr_t src; - 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) { - case FLASH_CFI_8BIT: - cnt = len; - break; - case FLASH_CFI_16BIT: - cnt = len >> 1; - break; - case FLASH_CFI_32BIT: - cnt = len >> 2; - break; - default: - return ERR_INVAL; - break; - } - flash_write_cmd(info, sector, 0, (uchar)cnt-1); - while(cnt-- > 0) { - switch(info->portwidth) { - case FLASH_CFI_8BIT: - *dst.cp++ = *src.cp++; - break; - case FLASH_CFI_16BIT: - *dst.wp++ = *src.wp++; - break; - case FLASH_CFI_32BIT: - *dst.lp++ = *src.lp++; - break; - default: - return ERR_INVAL; - 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_CLEAR_STATUS); - return retcode; + int sector; + int cnt; + int retcode; + volatile cfiptr_t src; + 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) { + case FLASH_CFI_8BIT: + cnt = len; + break; + case FLASH_CFI_16BIT: + cnt = len >> 1; + break; + case FLASH_CFI_32BIT: + cnt = len >> 2; + break; + default: + return ERR_INVAL; + break; + } + flash_write_cmd (info, sector, 0, (uchar) cnt - 1); + while (cnt-- > 0) { + switch (info->portwidth) { + case FLASH_CFI_8BIT: + *dst.cp++ = *src.cp++; + break; + case FLASH_CFI_16BIT: + *dst.wp++ = *src.wp++; + break; + case FLASH_CFI_32BIT: + *dst.lp++ = *src.lp++; + break; + default: + return ERR_INVAL; + 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_CLEAR_STATUS); + return retcode; } #endif /* CFG_USE_FLASH_BUFFER_WRITE */ |