parent
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217c9dad82
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/*
|
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* (C) Copyright 2002 ELTEC Elektronik AG |
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* Frank Gottschling <fgottschling@eltec.de> |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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|
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/*
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* Local network srom writing for first time run |
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*/ |
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|
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/* includes */ |
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#include <common.h> |
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#include <pci.h> |
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#include <net.h> |
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#include "srom.h" |
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extern int eepro100_write_eeprom (struct eth_device* dev, |
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int location, int addr_len, unsigned short data); |
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|
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/*----------------------------------------------------------------------------*/ |
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unsigned short eepro100_srom_checksum (unsigned short *sromdata) |
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{ |
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unsigned short sum = 0; |
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unsigned int i; |
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for (i = 0; i < (EE_SIZE-1); i++) |
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{ |
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sum += sromdata[i]; |
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} |
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return (EE_CHECKSUM - sum); |
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} |
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|
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/*----------------------------------------------------------------------------*/ |
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int eepro100_srom_store (unsigned short *source) |
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{ |
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int count; |
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struct eth_device onboard_dev; |
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/* get onboard network iobase */ |
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pci_read_config_dword(PCI_BDF(0,0x10,0), PCI_BASE_ADDRESS_0, |
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&onboard_dev.iobase); |
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onboard_dev.iobase &= ~0xf; |
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source[63] = eepro100_srom_checksum (source); |
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for (count=0; count < EE_SIZE; count++) |
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{ |
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if ( eepro100_write_eeprom ((struct eth_device*)&onboard_dev, |
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count, EE_ADDR_BITS, SROM_SHORT(source)) == -1 ) |
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return -1; |
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source++; |
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} |
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return 0; |
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} |
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/*----------------------------------------------------------------------------*/ |
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#ifdef EEPRO100_SROM_CHECK |
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extern int read_eeprom (struct eth_device* dev, int location, int addr_len); |
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void eepro100_srom_load (unsigned short *destination) |
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{ |
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int count; |
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struct eth_device onboard_dev; |
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#ifdef DEBUG |
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int lr = 0; |
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printf ("eepro100_srom_download:\n"); |
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#endif |
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/* get onboard network iobase */ |
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pci_read_config_dword(PCI_BDF(0,0x10,0), PCI_BASE_ADDRESS_0, |
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&onboard_dev.iobase); |
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onboard_dev.iobase &= ~0xf; |
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memset (destination, 0x65, 128); |
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for (count=0; count < 0x40; count++) |
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{ |
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*destination++ = read_eeprom (struct eth_device*)&onboard_dev, |
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count, EE_ADDR_BITS); |
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#ifdef DEBUG |
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printf ("%04x ", *(destination - 1)); |
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if (lr++ == 7) |
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{ |
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printf("\n"); |
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lr = 0; |
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} |
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#endif |
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} |
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} |
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#endif /* EEPRO100_SROM_CHECK */ |
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|
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/*----------------------------------------------------------------------------*/ |
@ -0,0 +1,697 @@ |
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/*
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* (C) Copyright 2001 |
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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*/ |
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#include <common.h> |
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#include <mpc8xx.h> |
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#include <flash.h> |
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flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ |
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/*-----------------------------------------------------------------------
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* Functions |
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*/ |
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ulong flash_recognize (vu_long *base); |
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int write_word (flash_info_t *info, ulong dest, ulong data); |
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void flash_get_geometry (vu_long *base, flash_info_t *info); |
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void flash_unprotect(flash_info_t *info); |
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int _flash_real_protect(flash_info_t *info, long idx, int on); |
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unsigned long flash_init (void) |
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{ |
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volatile immap_t *immap = (immap_t *)CFG_IMMR; |
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volatile memctl8xx_t *memctl = &immap->im_memctl; |
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int i; |
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int rec; |
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for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) { |
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flash_info[i].flash_id = FLASH_UNKNOWN; |
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} |
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*((vu_short*)CFG_FLASH_BASE) = 0xffff; |
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flash_get_geometry ((vu_long*)CFG_FLASH_BASE, &flash_info[0]); |
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/* Remap FLASH according to real size */ |
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memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-flash_info[0].size & 0xFFFF8000); |
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memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | |
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(memctl->memc_br0 & ~(BR_BA_MSK)); |
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rec = flash_recognize((vu_long*)CFG_FLASH_BASE); |
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if (rec == FLASH_UNKNOWN) { |
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printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", |
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flash_info[0].size, flash_info[0].size<<20); |
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} |
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#if CFG_FLASH_PROTECTION |
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/*Unprotect all the flash memory*/ |
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flash_unprotect(&flash_info[0]); |
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#endif |
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*((vu_short*)CFG_FLASH_BASE) = 0xffff; |
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return (flash_info[0].size); |
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#if CFG_MONITOR_BASE >= CFG_FLASH_BASE |
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/* monitor protection ON by default */ |
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flash_protect(FLAG_PROTECT_SET, |
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CFG_MONITOR_BASE, |
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CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, |
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&flash_info[0]); |
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#endif |
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#ifdef CFG_ENV_IS_IN_FLASH |
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/* ENV protection ON by default */ |
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flash_protect(FLAG_PROTECT_SET, |
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CFG_ENV_OFFSET, |
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CFG_ENV_OFFSET+CFG_ENV_SIZE-1, |
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&flash_info[0]); |
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#endif |
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return (flash_info[0].size); |
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} |
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int flash_get_protect_status(flash_info_t * info, long idx) |
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{ |
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vu_short * base; |
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ushort res; |
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#ifdef DEBUG |
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printf("\n Attempting to set protection info with %d sectors\n", info->sector_count); |
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#endif |
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base = (vu_short*)info->start[idx]; |
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*(base) = 0xffff; |
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*(base + 0x55) = 0x0098; |
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res = base[0x2]; |
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*(base) = 0xffff; |
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if(res != 0) |
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res = 1; |
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else |
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res = 0; |
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return res; |
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} |
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void flash_get_geometry (vu_long *base, flash_info_t *info) |
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{ |
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int i,j; |
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ulong ner = 0; |
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vu_short * sb = (vu_short*)base; |
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ulong offset = (ulong)base; |
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/* Read Device geometry */ |
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*sb = 0xffff; |
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*sb = 0x0090; |
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info->flash_id = ((ulong)base[0x0]); |
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#ifdef DEBUG |
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printf("Id is %x\n", (uint)(ulong)info->flash_id); |
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#endif |
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*sb = 0xffff; |
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*(sb+0x55) = 0x0098; |
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info->size = 1 << (sb[0x27]); /* Read flash size */ |
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#ifdef DEBUG |
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printf("Size is %x\n", (uint)(ulong)info->size); |
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#endif |
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*sb = 0xffff; |
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*(sb + 0x55) = 0x0098; |
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ner = sb[0x2c] ; /*Number of erase regions*/ |
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#ifdef DEBUG |
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printf("Number of erase regions %x\n", (uint)ner); |
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#endif |
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info->sector_count = 0; |
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for(i = 0; i < ner; i++) |
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{ |
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uint s; |
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uint count; |
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uint t1,t2,t3,t4; |
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*sb = 0xffff; |
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*(sb + 0x55) = 0x0098; |
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t1 = sb[0x2d + i*4]; |
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t2 = sb[0x2e + i*4]; |
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t3 = sb[0x2f + i*4]; |
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t4 = sb[0x30 + i*4]; |
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count = ((t1 & 0x00ff) | (((t2 & 0x00ff) << 8) & 0xff00) )+ 1; /*sector count*/ |
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s = ((t3 & 0x00ff) | (((t4 & 0x00ff) << 8) & 0xff00)) * 256;; /*Sector size*/ |
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#ifdef DEBUG |
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printf("count and size %x, %x\n", count, s); |
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printf("sector count for erase region %d is %d\n", i, count); |
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#endif |
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for(j = 0; j < count; j++) |
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{ |
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#ifdef DEBUG |
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printf("%x, ", (uint)offset); |
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#endif |
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info->start[ info->sector_count + j] = offset; |
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offset += s; |
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} |
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info->sector_count += count; |
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} |
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if ((offset - (ulong)base) != info->size) |
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printf("WARNING reported size %x does not match to calculted size %x.\n" |
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, (uint)info->size, (uint)(offset - (ulong)base) ); |
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/* Next check if there are any sectors protected.*/ |
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for(i = 0; i < info->sector_count; i++) |
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info->protect[i] = flash_get_protect_status(info, i); |
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*sb = 0xffff; |
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} |
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/*-----------------------------------------------------------------------
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*/ |
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void flash_print_info (flash_info_t *info) |
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{ |
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int i; |
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if (info->flash_id == FLASH_UNKNOWN) { |
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printf ("missing or unknown FLASH type\n"); |
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return ; |
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} |
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switch (info->flash_id & FLASH_VENDMASK) { |
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case INTEL_MANUFACT & FLASH_VENDMASK: |
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printf ("Intel "); |
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break; |
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default: |
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printf ("Unknown Vendor "); |
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break; |
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} |
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switch (info->flash_id & FLASH_TYPEMASK) { |
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case INTEL_ID_28F320C3B & FLASH_TYPEMASK: |
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printf ("28F320RC3(4 MB)\n"); |
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break; |
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case INTEL_ID_28F320J3A: |
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printf("28F320J3A (4 MB)\n"); |
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break; |
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default: |
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printf ("Unknown Chip Type\n"); |
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break; |
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} |
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printf (" Size: %ld MB in %d Sectors\n", |
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info->size >> 20, info->sector_count); |
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printf (" Sector Start Addresses:"); |
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for (i=0; i<info->sector_count; ++i) { |
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if ((i % 4) == 0) |
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printf ("\n "); |
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printf (" %02d %08lX%s", |
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i, info->start[i], |
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info->protect[i]!=0 ? " (RO)" : " " |
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); |
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} |
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printf ("\n"); |
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return ; |
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} |
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ulong flash_recognize (vu_long *base) |
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{ |
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ulong id; |
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ulong res = FLASH_UNKNOWN; |
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vu_short * sb = (vu_short*)base; |
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*sb = 0xffff; |
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*sb = 0x0090; |
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id = base[0]; |
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switch (id & 0x00FF0000) |
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{ |
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case (MT_MANUFACT & 0x00FF0000): /* MT or => Intel */ |
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case (INTEL_ALT_MANU & 0x00FF0000): |
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res = FLASH_MAN_INTEL; |
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break; |
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default: |
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res = FLASH_UNKNOWN; |
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} |
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*sb = 0xffff; |
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return res; |
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} |
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/*-----------------------------------------------------------------------*/ |
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#define INTEL_FLASH_STATUS_BLS 0x02 |
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#define INTEL_FLASH_STATUS_PSS 0x04 |
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#define INTEL_FLASH_STATUS_VPPS 0x08 |
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#define INTEL_FLASH_STATUS_PS 0x10 |
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#define INTEL_FLASH_STATUS_ES 0x20 |
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#define INTEL_FLASH_STATUS_ESS 0x40 |
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#define INTEL_FLASH_STATUS_WSMS 0x80 |
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int flash_decode_status_bits(char status) |
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{ |
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int err = 0; |
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if(!(status & INTEL_FLASH_STATUS_WSMS)) { |
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printf("Busy\n"); |
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err = -1; |
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} |
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if(status & INTEL_FLASH_STATUS_ESS) { |
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printf("Erase suspended\n"); |
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err = -1; |
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} |
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if(status & INTEL_FLASH_STATUS_ES) { |
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printf("Error in block erase\n"); |
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err = -1; |
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} |
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if(status & INTEL_FLASH_STATUS_PS) { |
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printf("Error in programming\n"); |
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err = -1; |
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} |
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if(status & INTEL_FLASH_STATUS_VPPS) { |
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printf("Vpp low, operation aborted\n"); |
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err = -1; |
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} |
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if(status & INTEL_FLASH_STATUS_PSS) { |
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printf("Program is suspended\n"); |
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err = -1; |
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} |
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if(status & INTEL_FLASH_STATUS_BLS) { |
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printf("Attempting to program/erase a locked sector\n"); |
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err = -1; |
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} |
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if((status & INTEL_FLASH_STATUS_PS) && |
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(status & INTEL_FLASH_STATUS_ES) && |
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(status & INTEL_FLASH_STATUS_ESS)) { |
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printf("A command sequence error\n"); |
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return -1; |
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} |
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return err; |
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} |
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/*-----------------------------------------------------------------------
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*/ |
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int flash_erase (flash_info_t *info, int s_first, int s_last) |
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{ |
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vu_short *addr; |
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int flag, prot, sect; |
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ulong start, now; |
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int rcode = 0; |
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|
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if ((s_first < 0) || (s_first > s_last)) { |
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if (info->flash_id == FLASH_UNKNOWN) { |
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printf ("- missing\n"); |
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} else { |
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printf ("- no sectors to erase\n"); |
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} |
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return 1; |
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} |
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if ((info->flash_id & FLASH_VENDMASK) != (INTEL_MANUFACT & FLASH_VENDMASK)) { |
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printf ("Can't erase unknown flash type %08lx - aborted\n", |
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info->flash_id); |
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return 1; |
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} |
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|
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prot = 0; |
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for (sect=s_first; sect<=s_last; ++sect) { |
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if (info->protect[sect]) { |
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prot++; |
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} |
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} |
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|
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if (prot) { |
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printf ("- Warning: %d protected sectors will not be erased!\n", |
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prot); |
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} else { |
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printf ("\n"); |
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} |
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start = get_timer (0); |
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|
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/* Start erase on unprotected sectors */ |
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for (sect = s_first; sect<=s_last; sect++) { |
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char tmp; |
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|
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if (info->protect[sect] == 0) { /* not protected */ |
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addr = (vu_short *)(info->start[sect]); |
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|
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/* Disable interrupts which might cause a timeout here */ |
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flag = disable_interrupts(); |
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/* Single Block Erase Command */ |
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*addr = 0x0020; |
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/* Confirm */ |
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*addr = 0x00D0; |
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/* Resume Command, as per errata update */ |
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*addr = 0x00D0; |
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|
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/* re-enable interrupts if necessary */ |
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if (flag) |
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enable_interrupts(); |
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|
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*addr = 0x70; /*Read status register command*/ |
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tmp = (short)*addr & 0x00FF; /* Read the status */ |
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while (!(tmp & INTEL_FLASH_STATUS_WSMS)) { |
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if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) { |
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*addr = 0x0050; /* Reset the status register */ |
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*addr = 0xffff; |
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printf ("Timeout\n"); |
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return 1; |
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} |
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/* show that we're waiting */ |
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if ((now - start) > 1000) { /* every second */ |
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putc ('.'); |
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} |
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udelay(100000); /* 100 ms */ |
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*addr = 0x0070; /*Read status register command*/ |
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tmp = (short)*addr & 0x00FF; /* Read status */ |
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start = get_timer(0); |
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} |
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if( tmp & INTEL_FLASH_STATUS_ES ) |
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flash_decode_status_bits(tmp); |
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|
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*addr = 0x0050; /* Reset the status register */ |
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*addr = 0xffff; /* Reset to read mode */ |
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} |
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} |
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|
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|
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printf (" done\n"); |
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return rcode; |
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} |
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|
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void flash_unprotect (flash_info_t *info) |
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{ |
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/*We can only unprotect the whole flash at once*/ |
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/*Therefore we must prevent the _flash_real_protect()*/ |
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/*from re-protecting sectors, that ware protected before */ |
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/*we called flash_real_protect();*/ |
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|
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int i; |
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|
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for(i = 0; i < info->sector_count; i++) |
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info->protect[i] = 0; |
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|
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#ifdef CFG_FLASH_PROTECTION |
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_flash_real_protect(info, 0, 0); |
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#endif |
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} |
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|
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/*-----------------------------------------------------------------------
|
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* Copy memory to flash, returns: |
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* 0 - OK |
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* 1 - write timeout |
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* 2 - Flash not erased |
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*/ |
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|
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int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) |
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{ |
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ulong cp, wp, data; |
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int i, l, rc; |
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|
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wp = (addr & ~3); /* get lower word aligned address */ |
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|
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/*
|
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* handle unaligned start bytes |
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*/ |
||||
if ((l = addr - wp) != 0) { |
||||
data = 0; |
||||
for (i=0, cp=wp; i<l; ++i, ++cp) { |
||||
data = (data << 8) | (*(uchar *)cp); |
||||
} |
||||
for (; i<4 && cnt>0; ++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 |
||||
*/ |
||||
int write_word (flash_info_t *info, ulong dest, ulong da) |
||||
{ |
||||
vu_short *addr = (vu_short *)dest; |
||||
ulong start; |
||||
char csr; |
||||
int flag; |
||||
ushort * d = (ushort*)&da; |
||||
int i; |
||||
|
||||
/* Check if Flash is (sufficiently) erased */ |
||||
if (((*addr & d[0]) != d[0]) || ((*(addr+1) & d[1]) != d[1])) { |
||||
return (2); |
||||
} |
||||
/* Disable interrupts which might cause a timeout here */ |
||||
flag = disable_interrupts(); |
||||
|
||||
for(i = 0; i < 2; i++) |
||||
{ |
||||
/* Write Command */ |
||||
*addr = 0x0010; |
||||
|
||||
/* Write Data */ |
||||
*addr = d[i]; |
||||
|
||||
/* re-enable interrupts if necessary */ |
||||
if (flag) |
||||
enable_interrupts(); |
||||
|
||||
/* data polling for D7 */ |
||||
start = get_timer (0); |
||||
flag = 0; |
||||
*addr = 0x0070; /*Read statusregister command */ |
||||
while (((csr = *addr) & INTEL_FLASH_STATUS_WSMS)!=INTEL_FLASH_STATUS_WSMS) { |
||||
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { |
||||
flag = 1; |
||||
break; |
||||
} |
||||
*addr = 0x0070; /*Read statusregister command */ |
||||
} |
||||
if (csr & INTEL_FLASH_STATUS_PSS) { |
||||
printf ("CSR indicates write error (%0x) at %08lx\n", |
||||
csr, (ulong)addr); |
||||
flag = 1; |
||||
} |
||||
|
||||
/* Clear Status Registers Command */ |
||||
*addr = 0x0050; |
||||
/* Reset to read array mode */ |
||||
*addr = 0xffff; |
||||
addr++; |
||||
} |
||||
|
||||
return (flag); |
||||
} |
||||
|
||||
int flash_real_protect(flash_info_t *info, long offset, int prot) |
||||
{ |
||||
int i, idx; |
||||
|
||||
for(idx = 0; idx < info->sector_count; idx++) |
||||
if(info->start[idx] == offset) |
||||
break; |
||||
|
||||
if(idx==info->sector_count) |
||||
return -1; |
||||
|
||||
if(prot == 0) { |
||||
/* Unprotect one sector, which means unprotect all flash
|
||||
* and reprotect the other protected sectors. |
||||
*/ |
||||
_flash_real_protect(info, 0, 0); /* Unprotects the whole flash*/ |
||||
info->protect[idx] = 0; |
||||
|
||||
for(i = 0; i < info->sector_count; i++) |
||||
if(info->protect[i]) |
||||
_flash_real_protect(info, i, 1); |
||||
} |
||||
else { |
||||
/* We can protect individual sectors */ |
||||
_flash_real_protect(info, idx, 1); |
||||
} |
||||
|
||||
for( i = 0; i < info->sector_count; i++) |
||||
info->protect[i] = flash_get_protect_status(info, i); |
||||
|
||||
return 0; |
||||
} |
||||
|
||||
int _flash_real_protect(flash_info_t *info, long idx, int prot) |
||||
{ |
||||
vu_short *addr; |
||||
int flag; |
||||
ushort cmd; |
||||
ushort tmp; |
||||
ulong now, start; |
||||
|
||||
if ((info->flash_id & FLASH_VENDMASK) != (INTEL_MANUFACT & FLASH_VENDMASK)) { |
||||
printf ("Can't change protection for unknown flash type %08lx - aborted\n", |
||||
info->flash_id); |
||||
return -1; |
||||
} |
||||
|
||||
if(prot == 0) { |
||||
/*Unlock the sector*/ |
||||
cmd = 0x00D0; |
||||
} |
||||
else { |
||||
/*Lock the sector*/ |
||||
cmd = 0x0001; |
||||
} |
||||
|
||||
addr = (vu_short *)(info->start[idx]); |
||||
|
||||
/* If chip is busy, wait for it */ |
||||
start = get_timer(0); |
||||
*addr = 0x0070; /*Read status register command*/ |
||||
tmp = ((ushort)(*addr))&0x00ff; /*Read the status*/ |
||||
while(!(tmp & INTEL_FLASH_STATUS_WSMS)) { |
||||
/*Write State Machine Busy*/ |
||||
/*Wait untill done or timeout.*/ |
||||
if ((now=get_timer(start)) > CFG_FLASH_WRITE_TOUT) { |
||||
*addr = 0x0050; /* Reset the status register */ |
||||
*addr = 0xffff; /* Reset the chip */ |
||||
printf ("TTimeout\n"); |
||||
return 1; |
||||
} |
||||
*addr = 0x0070; |
||||
tmp = ((ushort)(*addr))&0x00ff; /*Read the status*/ |
||||
start = get_timer(0); |
||||
} |
||||
|
||||
/* Disable interrupts which might cause a timeout here */ |
||||
flag = disable_interrupts(); |
||||
|
||||
/* Unlock block*/ |
||||
*addr = 0x0060; |
||||
|
||||
*addr = cmd; |
||||
|
||||
/* re-enable interrupts if necessary */ |
||||
if (flag) |
||||
enable_interrupts(); |
||||
|
||||
start = get_timer(0); |
||||
*addr = 0x0070; /*Read status register command*/ |
||||
tmp = ((ushort)(*addr)) & 0x00FF; /* Read the status */ |
||||
while (!(tmp & INTEL_FLASH_STATUS_WSMS)) { |
||||
/* Write State Machine Busy */ |
||||
if ((now=get_timer(start)) > CFG_FLASH_WRITE_TOUT) { |
||||
*addr = 0x0050; /* Reset the status register */ |
||||
*addr = 0xffff; |
||||
printf ("Timeout\n"); |
||||
return 1; |
||||
} |
||||
/* show that we're waiting */ |
||||
if ((now - start) > 1000) { /* every second */ |
||||
putc ('.'); |
||||
} |
||||
udelay(100000); /* 100 ms */ |
||||
*addr = 0x70; /*Read status register command*/ |
||||
tmp = (short)*addr & 0x00FF; /* Read status */ |
||||
start = get_timer(0); |
||||
} |
||||
if( tmp & INTEL_FLASH_STATUS_PS ) |
||||
flash_decode_status_bits(tmp); |
||||
|
||||
*addr =0x0050; /*Clear status register*/ |
||||
|
||||
/* reset to read mode */ |
||||
*addr = 0xffff; |
||||
|
||||
return 0; |
||||
} |
File diff suppressed because it is too large
Load Diff
Loading…
Reference in new issue