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author	eban <eban@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2005-12-11 15:01:32 +0000
committer	eban <eban@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>	2005-12-11 15:01:32 +0000
commit	354c933ae940e1ae7a109c7322c2e903ab76494d (patch)
tree	4cda943ab7d8debc342e123f58d58f54607d092f /ext/tk/tkutil/depend
parent	1947d36443c094c4cb11efdaefa75d6591b117f6 (diff)

* 2005-12-12

git-svn-id: http://svn.ruby-lang.org/repos/ruby/branches/ruby_1_8@9672 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Diffstat (limited to 'ext/tk/tkutil/depend')

0 files changed, 0 insertions, 0 deletions

/* * (C) Copyright 2004 * Elmeg Communications Systems GmbH, Juergen Selent (j.selent@elmeg.de) * * Support for the Elmeg VoVPN Gateway Module * ------------------------------------------ * This is a signle bank flashdriver for INTEL 28F320J3, 28F640J3 * and 28F128J3A flashs working in 8 Bit mode. * * Most of this code is taken from existing u-boot source code. * * 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 <common.h> flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; #define FLASH_CMD_READ_ID 0x90 #define FLASH_CMD_READ_STATUS 0x70 #define FLASH_CMD_RESET 0xff #define FLASH_CMD_BLOCK_ERASE 0x20 #define FLASH_CMD_ERASE_CONFIRM 0xd0 #define FLASH_CMD_CLEAR_STATUS 0x50 #define FLASH_CMD_SUSPEND_ERASE 0xb0 #define FLASH_CMD_WRITE 0x40 #define FLASH_CMD_WRITE_BUFF 0xe8 #define FLASH_CMD_PROG_RESUME 0xd0 #define FLASH_CMD_PROTECT 0x60 #define FLASH_CMD_PROTECT_SET 0x01 #define FLASH_CMD_PROTECT_CLEAR 0xd0 #define FLASH_STATUS_DONE 0x80 #define FLASH_WRITE_BUFFER_SIZE 32 #ifdef CONFIG_SYS_FLASH_16BIT #define FLASH_WORD_SIZE unsigned short #define FLASH_ID_MASK 0xffff #define FLASH_CMD_ADDR_SHIFT 0 #else #define FLASH_WORD_SIZE unsigned char #define FLASH_ID_MASK 0xff /* A0 is not used in either 8x or 16x for READ ID */ #define FLASH_CMD_ADDR_SHIFT 1 #endif static unsigned long flash_get(volatile FLASH_WORD_SIZE *addr, flash_info_t *info) { volatile FLASH_WORD_SIZE *p; FLASH_WORD_SIZE value; int i; addr[0] = FLASH_CMD_READ_ID; /* manufactor */ value = addr[0 << FLASH_CMD_ADDR_SHIFT]; switch (value) { case (INTEL_MANUFACT & FLASH_ID_MASK): info->flash_id = FLASH_MAN_INTEL; break; default: info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; *addr = FLASH_CMD_RESET; return (0); } /* device */ value = addr[1 << FLASH_CMD_ADDR_SHIFT]; switch (value) { case (INTEL_ID_28F320J3A & FLASH_ID_MASK): info->flash_id += FLASH_28F320J3A; info->sector_count = 32; info->size = 0x00400000; break; case (INTEL_ID_28F640J3A & FLASH_ID_MASK): info->flash_id += FLASH_28F640J3A; info->sector_count = 64; info->size = 0x00800000; break; case (INTEL_ID_28F128J3A & FLASH_ID_MASK): info->flash_id += FLASH_28F128J3A; info->sector_count = 128; info->size = 0x01000000; break; default: info->flash_id = FLASH_UNKNOWN; info->sector_count = 0; info->size = 0; *addr = FLASH_CMD_RESET; return (0); } /* setup sectors */ for (i = 0; i < info->sector_count; i++) { info->start[i] = (unsigned long)addr + (i * info->size/info->sector_count); } /* check protected sectors */ for (i = 0; i < info->sector_count; i++) { p = (volatile FLASH_WORD_SIZE *)(info->start[i]); info->protect[i] = p[2 << FLASH_CMD_ADDR_SHIFT] & 1; } /* reset bank */ *addr = FLASH_CMD_RESET; return (info->size); } unsigned long flash_init(void) { unsigned long size; int i; for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) { flash_info[i].flash_id = FLASH_UNKNOWN; } size = flash_get((volatile FLASH_WORD_SIZE *)CONFIG_SYS_FLASH_BASE, &flash_info[0]); if (flash_info[0].flash_id == FLASH_UNKNOWN) { printf ("## Unknown FLASH Size=0x%08lx\n", size); return (0); } /* always protect 1 sector containing the HRCW */ flash_protect(FLAG_PROTECT_SET, flash_info[0].start[0], flash_info[0].start[1] - 1, &flash_info[0]); #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE flash_protect(FLAG_PROTECT_SET, CONFIG_SYS_MONITOR_FLASH, CONFIG_SYS_MONITOR_FLASH+CONFIG_SYS_MONITOR_LEN-1, &flash_info[0]); #endif #ifdef CONFIG_ENV_IS_IN_FLASH flash_protect(FLAG_PROTECT_SET, CONFIG_ENV_ADDR, CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1, &flash_info[0]); #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; default: printf ("Unknown Vendor "); break; } switch (info->flash_id & FLASH_TYPEMASK) { case FLASH_28F320J3A: printf ("28F320JA3 (32 Mbit)\n"); break; case FLASH_28F640J3A: printf ("28F640JA3 (64 Mbit)\n"); break; case FLASH_28F128J3A: printf ("28F128JA3 (128 Mbit)\n"); break; default: printf ("Unknown Chip Type"); break; } printf (" Size: %ld MB in %d Sectors\n", info->size >> 20, info->sector_count); printf (" Sector Start Addresses:"); for (i=0; i<info->sector_count; ++i) { if ((i % 5) == 0) printf ("\n "); printf (" %08lX%s", info->start[i], info->protect[i] ? " (RO)" : " " ); } printf ("\n"); } int flash_erase(flash_info_t *info, int s_first, int s_last) { unsigned long start, now, last; int flag, prot, sect; volatile FLASH_WORD_SIZE *addr; FLASH_WORD_SIZE status; 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_UNKNOWN) { printf ("Cannot erase unknown flash - aborted\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"); } start = get_timer (0); last = start; for (sect = s_first; sect<=s_last; sect++) { if (info->protect[sect]) { continue; } addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]); /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); #ifdef DEBUG printf("Erase sector %d at start addr 0x%08X", sect, (unsigned int)info->start[sect]); #endif *addr = FLASH_CMD_CLEAR_STATUS; *addr = FLASH_CMD_BLOCK_ERASE; *addr = FLASH_CMD_ERASE_CONFIRM; /* re-enable interrupts if necessary */ if (flag) { enable_interrupts(); } /* wait at least 80us - let's wait 1 ms */ udelay (1000); while (((status = *addr) & FLASH_STATUS_DONE) != FLASH_STATUS_DONE) { if ((now=get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { printf("Flash erase timeout at address %lx\n", info->start[sect]); *addr = FLASH_CMD_SUSPEND_ERASE; *addr = FLASH_CMD_RESET; return (1); } /* show that we're waiting */ if ((now - last) > 1000) { /* every second */ putc ('.'); last = now; } } *addr = FLASH_CMD_RESET; } printf (" done\n"); return (0); } static int write_buff2( volatile FLASH_WORD_SIZE *dst, volatile FLASH_WORD_SIZE *src, unsigned long cnt ) { unsigned long start; FLASH_WORD_SIZE status; int flag, i; start = get_timer (0); while (1) { /* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); dst[0] = FLASH_CMD_WRITE_BUFF; if ((status = *dst) & FLASH_STATUS_DONE) { break; } /* re-enable interrupts if necessary */ if (flag) { enable_interrupts(); } if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { return (-1); } } dst[0] = (FLASH_WORD_SIZE)(cnt - 1); for (i=0; i<cnt; i++) { dst[i] = src[i]; } dst[0] = FLASH_CMD_PROG_RESUME; if (flag) { enable_interrupts(); } return( 0 ); } static int poll_status( volatile FLASH_WORD_SIZE *addr ) { unsigned long start; start = get_timer (0); /* wait for error or finish */ while (1) { if (*addr == FLASH_STATUS_DONE) { if (*addr == FLASH_STATUS_DONE) { break; } } if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { *addr = FLASH_CMD_RESET; return (-1); } } *addr = FLASH_CMD_RESET; return (0); } /* * write_buff return values: * 0 - OK * 1 - write timeout * 2 - Flash not erased * 4 - Flash not identified */ int write_buff(flash_info_t *info, uchar *src, ulong udst, ulong cnt) { volatile FLASH_WORD_SIZE *addr, *dst; unsigned long bcnt; int flag, i; if (info->flash_id == FLASH_UNKNOWN) { return (4); } addr = (volatile FLASH_WORD_SIZE *)(info->start[0]); dst = (volatile FLASH_WORD_SIZE *) udst; #ifdef CONFIG_SYS_FLASH_16BIT #error NYI #else while (cnt > 0) { /* Check if buffer write is possible */ if (cnt > 1 && (((unsigned long)dst & (FLASH_WRITE_BUFFER_SIZE - 1)) == 0)) { bcnt = cnt > FLASH_WRITE_BUFFER_SIZE ? FLASH_WRITE_BUFFER_SIZE : cnt; /* Check if Flash is (sufficiently) erased */ for (i=0; i<bcnt; i++) { if ((dst[i] & src[i]) != src[i]) { return (2); } } if (write_buff2( dst,src,bcnt ) != 0) { addr[0] = FLASH_CMD_READ_STATUS; } if (poll_status( dst ) != 0) { return (1); } cnt -= bcnt; dst += bcnt; src += bcnt; continue; } /* Check if Flash is (sufficiently) erased */


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