diff options
Diffstat (limited to 'board/impa7/flash.c')
-rw-r--r-- | board/impa7/flash.c | 359 |
1 files changed, 0 insertions, 359 deletions
diff --git a/board/impa7/flash.c b/board/impa7/flash.c deleted file mode 100644 index 6eae428a9d..0000000000 --- a/board/impa7/flash.c +++ /dev/null @@ -1,359 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * 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 <common.h> - -#define FLASH_BANK_SIZE 0x800000 -#define MAIN_SECT_SIZE 0x20000 -#define PARAM_SECT_SIZE 0x4000 - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - - -/*----------------------------------------------------------------------- - */ - -ulong flash_init (void) -{ - int i, j; - ulong size = 0; - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { - ulong flashbase = 0; - - flash_info[i].flash_id = - (INTEL_MANUFACT & FLASH_VENDMASK) | - (INTEL_ID_28F320B3T & FLASH_TYPEMASK); - flash_info[i].size = FLASH_BANK_SIZE; - flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT; - memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT); - if (i == 0) - flashbase = PHYS_FLASH_1; - else if (i == 1) - flashbase = PHYS_FLASH_2; - else - panic ("configured too many flash banks!\n"); - for (j = 0; j < flash_info[i].sector_count; j++) { - if (j <= 7) { - flash_info[i].start[j] = - flashbase + j * PARAM_SECT_SIZE; - } else { - flash_info[i].start[j] = - flashbase + (j - 7) * MAIN_SECT_SIZE; - } - } - size += flash_info[i].size; - } - - /* Protect monitor and environment sectors - */ - flash_protect (FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE, - CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, - &flash_info[0]); - - flash_protect (FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]); - - return size; -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t * info) -{ - int i; - - switch (info->flash_id & FLASH_VENDMASK) { - case (INTEL_MANUFACT & FLASH_VENDMASK): - printf ("Intel: "); - break; - default: - printf ("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case (INTEL_ID_28F320B3T & FLASH_TYPEMASK): - printf ("28F320F3B (16Mbit)\n"); - break; - default: - printf ("Unknown Chip Type\n"); - goto Done; - 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"); - - Done:; -} - -/*----------------------------------------------------------------------- - */ - -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - int flag, prot, sect; - int rc = ERR_OK; - ulong start; - - if (info->flash_id == FLASH_UNKNOWN) - return ERR_UNKNOWN_FLASH_TYPE; - - if ((s_first < 0) || (s_first > s_last)) { - return ERR_INVAL; - } - - if ((info->flash_id & FLASH_VENDMASK) != - (INTEL_MANUFACT & FLASH_VENDMASK)) { - return ERR_UNKNOWN_FLASH_VENDOR; - } - - prot = 0; - for (sect = s_first; sect <= s_last; ++sect) { - if (info->protect[sect]) { - prot++; - } - } - if (prot) - return ERR_PROTECTED; - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ - flag = disable_interrupts (); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last && !ctrlc (); sect++) { - - printf ("Erasing sector %2d ... ", sect); - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - if (info->protect[sect] == 0) { /* not protected */ - vu_long *addr = (vu_long *) (info->start[sect]); - - *addr = 0x00200020; /* erase setup */ - *addr = 0x00D000D0; /* erase confirm */ - - while ((*addr & 0x00800080) != 0x00800080) { - if (get_timer(start) > - CONFIG_SYS_FLASH_ERASE_TOUT) { - *addr = 0x00B000B0; /* suspend erase */ - *addr = 0x00FF00FF; /* reset to read mode */ - rc = ERR_TIMOUT; - goto outahere; - } - } - - *addr = 0x00FF00FF; /* reset to read mode */ - } - printf ("ok.\n"); - } - if (ctrlc ()) - printf ("User Interrupt!\n"); - - outahere: - - /* allow flash to settle - wait 10 ms */ - udelay_masked (10000); - - if (flag) - enable_interrupts (); - - return rc; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash - */ - -static int write_word (flash_info_t * info, ulong dest, ulong data) -{ - vu_long *addr = (vu_long *) dest; - ulong barf; - int rc = ERR_OK; - int flag; - ulong start; - - /* Check if Flash is (sufficiently) erased - */ - if ((*addr & data) != data) - return ERR_NOT_ERASED; - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ - flag = disable_interrupts (); - - /* clear status register command */ - *addr = 0x00500050; - - /* program set-up command */ - *addr = 0x00400040; - - /* latch address/data */ - *addr = data; - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - /* read status register command */ - *addr = 0x00700070; - - /* wait while polling the status register */ - while ((*addr & 0x00800080) != 0x00800080) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - rc = ERR_TIMOUT; - /* suspend program command */ - *addr = 0x00B000B0; - goto outahere; - } - - if (*addr & 0x003A003A) { /* check for error */ - barf = *addr; - if (barf & 0x003A0000) { - barf >>= 16; - } else { - barf &= 0x0000003A; - } - printf ("\nFlash write error %02lx at address %08lx\n", barf, (unsigned long) dest); - if (barf & 0x0002) { - printf ("Block locked, not erased.\n"); - rc = ERR_NOT_ERASED; - goto outahere; - } - if (barf & 0x0010) { - printf ("Programming error.\n"); - rc = ERR_PROG_ERROR; - goto outahere; - } - if (barf & 0x0008) { - printf ("Vpp Low error.\n"); - rc = ERR_PROG_ERROR; - goto outahere; - } - rc = ERR_PROG_ERROR; - goto outahere; - } - } - - - outahere: - /* read array command */ - *addr = 0x00FF00FF; - - if (flag) - enable_interrupts (); - - return rc; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash. - */ - -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int l; - int i, 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; i < l; ++i, ++cp) { - data = (data >> 8) | (*(uchar *) cp << 24); - } - for (; i < 4 && cnt > 0; ++i) { - data = (data >> 8) | (*src++ << 24); - --cnt; - ++cp; - } - for (; cnt == 0 && i < 4; ++i, ++cp) { - data = (data >> 8) | (*(uchar *) cp << 24); - } - - if ((rc = write_word (info, wp, data)) != 0) { - return (rc); - } - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = *((vu_long *) src); - if ((rc = write_word (info, wp, data)) != 0) { - return (rc); - } - src += 4; - wp += 4; - cnt -= 4; - } - - if (cnt == 0) { - return ERR_OK; - } - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { - data = (data >> 8) | (*src++ << 24); - --cnt; - } - for (; i < 4; ++i, ++cp) { - data = (data >> 8) | (*(uchar *) cp << 24); - } - - return write_word (info, wp, data); -} |