From 90e4e7836596d8ae5cead41a776b2b95c84182c6 Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Fri, 12 Aug 2005 23:51:07 +0200 Subject: Remove stale file entry --- board/pm854/flash.c | 541 ---------------------------------------------------- 1 file changed, 541 deletions(-) delete mode 100644 board/pm854/flash.c diff --git a/board/pm854/flash.c b/board/pm854/flash.c deleted file mode 100644 index d714589..0000000 --- a/board/pm854/flash.c +++ /dev/null @@ -1,541 +0,0 @@ -/* - * (C) Copyright 2003 Motorola Inc. - * Xianghua Xiao,(X.Xiao@motorola.com) - * - * (C) Copyright 2000-2005 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * (C) Copyright 2001, Stuart Hughes, Lineo Inc, stuarth@lineo.com - * Add support the Sharp chips on the mpc8260ads. - * I started with board/ip860/flash.c and made changes I found in - * the MTD project by David Schleef. - * - * 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 - -#if !defined(CFG_NO_FLASH) - -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -#if defined(CFG_ENV_IS_IN_FLASH) -# ifndef CFG_ENV_ADDR -# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET) -# endif -# ifndef CFG_ENV_SIZE -# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE -# endif -# ifndef CFG_ENV_SECT_SIZE -# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE -# endif -#endif - -#undef DEBUG - -/*----------------------------------------------------------------------- - * Functions - */ -static ulong flash_get_size (vu_long *addr, flash_info_t *info); -static int write_word (flash_info_t *info, ulong dest, ulong data); -static int clear_block_lock_bit(vu_long * addr); -/*----------------------------------------------------------------------- - */ - -unsigned long flash_init (void) -{ - unsigned long size; - int i; - - /* Init: enable write, - * or we cannot even write flash commands - */ - for (i=0; i= CFG_FLASH_BASE - /* monitor protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CFG_MONITOR_BASE, - CFG_MONITOR_BASE+monitor_flash_len-1, - &flash_info[0]); - -#ifdef CFG_ENV_IS_IN_FLASH - /* ENV protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CFG_ENV_ADDR, - CFG_ENV_ADDR+CFG_ENV_SECT_SIZE-1, - &flash_info[0]); -#endif -#endif - return (size); -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t *info) -{ - int i; - - if (info->flash_id == FLASH_UNKNOWN) { - printf ("missing or unknown FLASH type\n"); - return; - } - - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_INTEL: printf ("Intel "); break; - case FLASH_MAN_SHARP: printf ("Sharp "); break; - default: printf ("Unknown Vendor "); break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_28F016SV: printf ("28F016SV (16 Mbit, 32 x 64k)\n"); - break; - case FLASH_28F160S3: printf ("28F160S3 (16 Mbit, 32 x 512K)\n"); - break; - case FLASH_28F320S3: printf ("28F320S3 (32 Mbit, 64 x 512K)\n"); - break; - case FLASH_LH28F016SCT: printf ("28F016SC (16 Mbit, 32 x 64K)\n"); - break; - case FLASH_28F640J3A: printf ("28F640J3A (64 Mbit, 64 x 128K)\n"); - break; - case FLASH_28F128J3A: printf ("28F128J3A (128 Mbit, 128 x 128K)\n"); - break; - - default: printf ("Unknown Chip Type\n"); - break; - } - - printf (" Size: %ld MB in %d Sectors\n", - info->size >> 20, info->sector_count); - - printf (" Sector Start Addresses:"); - for (i=0; isector_count; ++i) { - if ((i % 5) == 0) - printf ("\n "); - printf (" %08lX%s", - info->start[i], - info->protect[i] ? " (RO)" : " " - ); - } - printf ("\n"); -} - -/* - * The following code cannot be run from FLASH! - */ - -static ulong flash_get_size (vu_long *addr, flash_info_t *info) -{ - short i; - ulong value; - ulong base = (ulong)addr; - ulong sector_offset; - -#ifdef DEBUG - printf("Check flash at 0x%08x\n",(uint)addr); -#endif - /* Write "Intelligent Identifier" command: read Manufacturer ID */ - *addr = 0x90909090; - udelay(20); - asm("sync"); - - value = addr[0] & 0x00FF00FF; - -#ifdef DEBUG - printf("manufacturer=0x%x\n",(uint)value); -#endif - switch (value) { - case MT_MANUFACT: /* SHARP, MT or => Intel */ - case INTEL_ALT_MANU: - info->flash_id = FLASH_MAN_INTEL; - break; - default: - printf("unknown manufacturer: %x\n", (unsigned int)value); - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - return (0); /* no or unknown flash */ - } - - value = addr[1] & 0x00FF00FF; /* device ID */ - -#ifdef DEBUG - printf("deviceID=0x%x\n",(uint)value); -#endif - switch (value) { - case (INTEL_ID_28F016S): - info->flash_id += FLASH_28F016SV; - info->sector_count = 32; - info->size = 0x00400000; - sector_offset = 0x20000; - break; /* => 2x2 MB */ - - case (INTEL_ID_28F160S3): - info->flash_id += FLASH_28F160S3; - info->sector_count = 32; - info->size = 0x00400000; - sector_offset = 0x20000; - break; /* => 2x2 MB */ - - case (INTEL_ID_28F320S3): - info->flash_id += FLASH_28F320S3; - info->sector_count = 64; - info->size = 0x00800000; - sector_offset = 0x20000; - break; /* => 2x4 MB */ - - case (INTEL_ID_28F640J3A): - info->flash_id += FLASH_28F640J3A; - info->sector_count = 64; - info->size = 0x01000000; - sector_offset = 0x40000; - break; /* => 2x8 MB */ - - case (INTEL_ID_28F128J3A): - info->flash_id += FLASH_28F128J3A; - info->sector_count = 128; - info->size = 0x02000000; - sector_offset = 0x40000; - break; /* => 2x16 MB */ - - - case SHARP_ID_28F016SCL: - case SHARP_ID_28F016SCZ: - info->flash_id = FLASH_MAN_SHARP | FLASH_LH28F016SCT; - info->sector_count = 32; - info->size = 0x00800000; - sector_offset = 0x40000; - break; /* => 4x2 MB */ - - - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - - } - - /* set up sector start address table */ - for (i = 0; i < info->sector_count; i++) { - info->start[i] = base; - base += sector_offset; - /* don't know how to check sector protection */ - info->protect[i] = 0; - } - - /* - * Prevent writes to uninitialized FLASH. - */ - if (info->flash_id != FLASH_UNKNOWN) { - addr = (vu_long *)info->start[0]; - *addr = 0xFFFFFF; /* reset bank to read array mode */ - asm("sync"); - } - - return (info->size); -} - - -/*----------------------------------------------------------------------- - */ - -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ - int flag, prot, sect; - ulong start, now, last; - - if ((s_first < 0) || (s_first > s_last)) { - if (info->flash_id == FLASH_UNKNOWN) { - printf ("- missing\n"); - } else { - printf ("- no sectors to erase\n"); - } - return 1; - } - - if ( ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL) - && ((info->flash_id & FLASH_VENDMASK) != FLASH_MAN_SHARP) ) { - printf ("Can't erase unknown flash type %08lx - aborted\n", - info->flash_id); - 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"); - } - -#ifdef DEBUG - printf("\nFlash Erase:\n"); -#endif - /* Make Sure Block Lock Bit is not set. */ - if(clear_block_lock_bit((vu_long *)(info->start[s_first]))){ - return 1; - } - - /* Start erase on unprotected sectors */ -#if defined(DEBUG) - printf("Begin to erase now,s_first=0x%x s_last=0x%x...\n",s_first,s_last); -#endif - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - vu_long *addr = (vu_long *)(info->start[sect]); - asm("sync"); - - last = start = get_timer (0); - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - /* Reset Array */ - *addr = 0xffffffff; - asm("sync"); - /* Clear Status Register */ - *addr = 0x50505050; - asm("sync"); - /* Single Block Erase Command */ - *addr = 0x20202020; - asm("sync"); - /* Confirm */ - *addr = 0xD0D0D0D0; - asm("sync"); - - if((info->flash_id & FLASH_TYPEMASK) != FLASH_LH28F016SCT) { - /* Resume Command, as per errata update */ - *addr = 0xD0D0D0D0; - asm("sync"); - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); - while ((*addr & 0x00800080) != 0x00800080) { - if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - *addr = 0xFFFFFFFF; /* reset bank */ - asm("sync"); - return 1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - putc ('.'); - last = now; - } - } - - /* reset to read mode */ - *addr = 0xFFFFFFFF; - asm("sync"); - } - } - - printf ("flash erase done\n"); - return 0; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ - -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int i, l, rc; - - wp = (addr & ~3); /* get lower word aligned address */ - - /* - * handle unaligned start bytes - */ - if ((l = addr - wp) != 0) { - data = 0; - for (i=0, cp=wp; i0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt==0 && i<4; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = 0; - for (i=0; i<4; ++i) { - data = (data << 8) | *src++; - } - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += 4; - cnt -= 4; - } - - if (cnt == 0) { - return (0); - } - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) { - data = (data << 8) | *src++; - --cnt; - } - for (; i<4; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - return (write_word(info, wp, data)); -} - -/*----------------------------------------------------------------------- - * Write a word to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word (flash_info_t *info, ulong dest, ulong data) -{ - vu_long *addr = (vu_long *)dest; - ulong start, csr; - int flag; - - /* Check if Flash is (sufficiently) erased */ - if ((*addr & data) != data) { - return (2); - } - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - /* Write Command */ - *addr = 0x10101010; - asm("sync"); - - /* Write Data */ - *addr = data; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - flag = 0; - - while (((csr = *addr) & 0x00800080) != 0x00800080) { - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - flag = 1; - break; - } - } - if (csr & 0x40404040) { - printf ("CSR indicates write error (%08lx) at %08lx\n", csr, (ulong)addr); - flag = 1; - } - - /* Clear Status Registers Command */ - *addr = 0x50505050; - asm("sync"); - /* Reset to read array mode */ - *addr = 0xFFFFFFFF; - asm("sync"); - - return (flag); -} - -/*----------------------------------------------------------------------- - * Clear Block Lock Bit, returns: - * 0 - OK - * 1 - Timeout - */ - -static int clear_block_lock_bit(vu_long * addr) -{ - ulong start, now; - - /* Reset Array */ - *addr = 0xffffffff; - asm("sync"); - /* Clear Status Register */ - *addr = 0x50505050; - asm("sync"); - - *addr = 0x60606060; - asm("sync"); - *addr = 0xd0d0d0d0; - asm("sync"); - - start = get_timer (0); - while((*addr & 0x00800080) != 0x00800080){ - if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) { - printf ("Timeout on clearing Block Lock Bit\n"); - *addr = 0xFFFFFFFF; /* reset bank */ - asm("sync"); - return 1; - } - } - return 0; -} - -#endif /* !CFG_NO_FLASH */ -- cgit v1.1