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Diffstat (limited to 'board/barco/flash.c')
| -rw-r--r-- | board/barco/flash.c | 611 |
1 files changed, 0 insertions, 611 deletions
diff --git a/board/barco/flash.c b/board/barco/flash.c deleted file mode 100644 index c9efb15..0000000 --- a/board/barco/flash.c +++ /dev/null @@ -1,611 +0,0 @@ -/******************************************************************** - * - * Unless otherwise specified, Copyright (C) 2004-2005 Barco Control Rooms - * - * $Source: /home/services/cvs/firmware/ppc/u-boot-1.1.2/board/barco/flash.c,v $ - * $Revision: 1.3 $ - * $Author: mleeman $ - * $Date: 2005/02/21 12:48:58 $ - * - * Last ChangeLog Entry - * $Log: flash.c,v $ - * Revision 1.3 2005/02/21 12:48:58 mleeman - * update of copyright years (feedback wd) - * - * Revision 1.2 2005/02/21 11:04:04 mleeman - * remove dead code and Coding style (feedback wd) - * - * Revision 1.1 2005/02/14 09:23:46 mleeman - * - moved 'barcohydra' directory to a more generic barco; since we will be - * supporting and adding multiple boards - * - * Revision 1.2 2005/02/09 12:56:23 mleeman - * add generic header to track changes in sources - * - * - *******************************************************************/ - -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.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> -#include <mpc824x.h> -#include <asm/processor.h> -#include <flash.h> - -#define ROM_CS0_START 0xFF800000 -#define ROM_CS1_START 0xFF000000 - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -#if defined(CONFIG_ENV_IS_IN_FLASH) -# ifndef CONFIG_ENV_ADDR -# define CONFIG_ENV_ADDR (CONFIG_SYS_FLASH_BASE + CONFIG_ENV_OFFSET) -# endif -# ifndef CONFIG_ENV_SIZE -# define CONFIG_ENV_SIZE CONFIG_ENV_SECT_SIZE -# endif -# ifndef CONFIG_ENV_SECT_SIZE -# define CONFIG_ENV_SECT_SIZE CONFIG_ENV_SIZE -# endif -#endif - -/*----------------------------------------------------------------------- - * Functions - */ -static int write_word (flash_info_t *info, ulong dest, ulong data); - -/*flash command address offsets*/ - -#define ADDR0 (0xAAA) -#define ADDR1 (0x555) -#define ADDR3 (0x001) - -#define FLASH_WORD_SIZE unsigned char - -/*----------------------------------------------------------------------- - */ - -static unsigned long flash_id(unsigned char mfct, unsigned char chip) __attribute__ ((const)); - -typedef struct{ - FLASH_WORD_SIZE extval; - unsigned short intval; -} map_entry; - -static unsigned long flash_id(unsigned char mfct, unsigned char chip) -{ - static const map_entry mfct_map[] = { - {(FLASH_WORD_SIZE) AMD_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_AMD >> 16)}, - {(FLASH_WORD_SIZE) FUJ_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_FUJ >> 16)}, - {(FLASH_WORD_SIZE) STM_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_STM >> 16)}, - {(FLASH_WORD_SIZE) MT_MANUFACT, (unsigned short) ((unsigned long) FLASH_MAN_MT >> 16)}, - {(FLASH_WORD_SIZE) INTEL_MANUFACT,(unsigned short) ((unsigned long) FLASH_MAN_INTEL >> 16)}, - {(FLASH_WORD_SIZE) INTEL_ALT_MANU,(unsigned short) ((unsigned long) FLASH_MAN_INTEL >> 16)} - }; - - static const map_entry chip_map[] = { - {AMD_ID_F040B, FLASH_AM040}, - {AMD_ID_F033C, FLASH_AM033}, - {AMD_ID_F065D, FLASH_AM065}, - {ATM_ID_LV040, FLASH_AT040}, - {(FLASH_WORD_SIZE) STM_ID_x800AB, FLASH_STM800AB} - }; - - const map_entry *p; - unsigned long result = FLASH_UNKNOWN; - - /* find chip id */ - for(p = &chip_map[0]; p < &chip_map[sizeof chip_map / sizeof chip_map[0]]; p++){ - if(p->extval == chip){ - result = FLASH_VENDMASK | p->intval; - break; - } - } - - /* find vendor id */ - for(p = &mfct_map[0]; p < &mfct_map[sizeof mfct_map / sizeof mfct_map[0]]; p++){ - if(p->extval == mfct){ - result &= ~FLASH_VENDMASK; - result |= (unsigned long) p->intval << 16; - break; - } - } - - return result; -} - - -unsigned long flash_init(void) -{ - unsigned long i; - unsigned char j; - static const ulong flash_banks[] = CONFIG_SYS_FLASH_BANKS; - - /* Init: no FLASHes known */ - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++){ - flash_info_t * const pflinfo = &flash_info[i]; - pflinfo->flash_id = FLASH_UNKNOWN; - pflinfo->size = 0; - pflinfo->sector_count = 0; - } - - /* Enable writes to Hydra/Argus flash */ - { - register unsigned int temp; - CONFIG_READ_WORD(PICR1,temp); - temp |= PICR1_FLASH_WR_EN; - CONFIG_WRITE_WORD(PICR1,temp); - } - - for(i = 0; i < sizeof flash_banks / sizeof flash_banks[0]; i++){ - flash_info_t * const pflinfo = &flash_info[i]; - const unsigned long base_address = flash_banks[i]; - volatile FLASH_WORD_SIZE * const flash = (FLASH_WORD_SIZE *) base_address; - - /* write autoselect sequence */ - flash[0x5555] = 0xaa; - flash[0x2aaa] = 0x55; - flash[0x5555] = 0x90; - __asm__ __volatile__("sync"); - - pflinfo->flash_id = flash_id(flash[0x0], flash[0x1]); - - switch(pflinfo->flash_id & FLASH_TYPEMASK){ - case FLASH_AM033: - pflinfo->size = 0x00200000; - pflinfo->sector_count = 64; - for(j = 0; j < 64; j++){ - pflinfo->start[j] = base_address + 0x00010000 * j; - pflinfo->protect[j] = flash[(j << 16) | 0x2]; - } - break; - case FLASH_AM065: - pflinfo->size = 0x00800000; - pflinfo->sector_count =128; - for(j = 0; j < 128; j++){ - pflinfo->start[j] = base_address + 0x00010000 * j; - pflinfo->protect[j] = flash[(j << 16) | 0x2]; - } - break; - case FLASH_AT040: - pflinfo->size = 0x00080000; - pflinfo->sector_count = 2; - pflinfo->start[0] = base_address ; - pflinfo->start[1] = base_address + 0x00004000; - pflinfo->protect[0] = ((flash[0x02] & 0X01)==0) ? 0X02 : 0X01; - pflinfo->protect[1] = 0X02; - break; - case FLASH_AM040: - pflinfo->size = 0x00080000; - pflinfo->sector_count = 8; - for(j = 0; j < 8; j++){ - pflinfo->start[j] = base_address + 0x00010000 * j; - pflinfo->protect[j] = flash[(j << 16) | 0x2]; - } - break; - case FLASH_STM800AB: - pflinfo->size = 0x00100000; - pflinfo->sector_count = 19; - pflinfo->start[0] = base_address; - pflinfo->start[1] = base_address + 0x4000; - pflinfo->start[2] = base_address + 0x6000; - pflinfo->start[3] = base_address + 0x8000; - for(j = 1; j < 16; j++){ - pflinfo->start[j+3] = base_address + 0x00010000 * j; - } - break; - } - /* Protect monitor and environment sectors */ -#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE - flash_protect(FLAG_PROTECT_SET, - CONFIG_SYS_MONITOR_BASE, - CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1, - &flash_info[0]); -#endif - -#if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR) - flash_protect(FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, - &flash_info[0]); -#endif - - /* reset device to read mode */ - flash[0x0000] = 0xf0; - __asm__ __volatile__("sync"); - } - - return flash_info[0].size + flash_info[1].size; -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info(flash_info_t *info) -{ - static const char unk[] = "Unknown"; - const char *mfct = unk, *type = unk; - unsigned int i; - - if(info->flash_id != FLASH_UNKNOWN){ - switch(info->flash_id & FLASH_VENDMASK){ - case FLASH_MAN_ATM: - mfct = "Atmel"; - break; - case FLASH_MAN_AMD: - mfct = "AMD"; - break; - case FLASH_MAN_FUJ: - mfct = "FUJITSU"; - break; - case FLASH_MAN_STM: - mfct = "STM"; - break; - case FLASH_MAN_SST: - mfct = "SST"; - break; - case FLASH_MAN_BM: - mfct = "Bright Microelectonics"; - break; - case FLASH_MAN_INTEL: - mfct = "Intel"; - break; - } - - switch(info->flash_id & FLASH_TYPEMASK){ - case FLASH_AT040: - type = "AT49LV040 (512K * 8, uniform sector size)"; - break; - case FLASH_AM033: - type = "AM29F033C (4 Mbit * 8, uniform sector size)"; - break; - case FLASH_AM040: - type = "AM29F040B (512K * 8, uniform sector size)"; - break; - case FLASH_AM065: - type = "AM29F0465D ( 8 MBit * 8, uniform sector size) or part of AM29F652D( 16 MB)"; - break; - case FLASH_AM400B: - type = "AM29LV400B (4 Mbit, bottom boot sect)"; - break; - case FLASH_AM400T: - type = "AM29LV400T (4 Mbit, top boot sector)"; - break; - case FLASH_AM800B: - type = "AM29LV800B (8 Mbit, bottom boot sect)"; - break; - case FLASH_AM800T: - type = "AM29LV800T (8 Mbit, top boot sector)"; - break; - case FLASH_AM160T: - type = "AM29LV160T (16 Mbit, top boot sector)"; - break; - case FLASH_AM320B: - type = "AM29LV320B (32 Mbit, bottom boot sect)"; - break; - case FLASH_AM320T: - type = "AM29LV320T (32 Mbit, top boot sector)"; - break; - case FLASH_STM800AB: - type = "M29W800AB (8 Mbit, bottom boot sect)"; - break; - case FLASH_SST800A: - type = "SST39LF/VF800 (8 Mbit, uniform sector size)"; - break; - case FLASH_SST160A: - type = "SST39LF/VF160 (16 Mbit, uniform sector size)"; - break; - } - } - - printf( - "\n Brand: %s Type: %s\n" - " Size: %lu KB in %d Sectors\n", - mfct, - type, - info->size >> 10, - info->sector_count - ); - - printf (" Sector Start Addresses:"); - - for (i = 0; i < info->sector_count; i++){ - unsigned long size; - unsigned int erased; - unsigned long * flash = (unsigned long *) info->start[i]; - - /* - * Check if whole sector is erased - */ - size = - (i != (info->sector_count - 1)) ? - (info->start[i + 1] - info->start[i]) >> 2 : - (info->start[0] + info->size - info->start[i]) >> 2; - - for( - flash = (unsigned long *) info->start[i], erased = 1; - (flash != (unsigned long *) info->start[i] + size) && erased; - flash++ - ){ - erased = *flash == ~0x0UL; - } - - printf( - "%s %08lX %s %s", - (i % 5) ? "" : "\n ", - info->start[i], - erased ? "E" : " ", - info->protect[i] ? "RO" : " " - ); - } - - puts("\n"); - return; -} - -int flash_erase(flash_info_t *info, int s_first, int s_last) -{ - volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]); - int flag, prot, sect, l_sect; - ulong start, now, last; - unsigned char sh8b; - - 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) || - (info->flash_id > (FLASH_MAN_STM | FLASH_AMD_COMP))) { - printf ("Can't erase unknown flash type - 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"); - } - - l_sect = -1; - - /* Check the ROM CS */ - if ((info->start[0] >= ROM_CS1_START) && (info->start[0] < ROM_CS0_START)){ - sh8b = 3; - } - else{ - sh8b = 0; - } - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00800080; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ - addr = (FLASH_WORD_SIZE *)(info->start[0] + ( - (info->start[sect] - info->start[0]) << sh8b)); - if (info->flash_id & FLASH_MAN_SST){ - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00800080; - addr[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */ - udelay(30000); /* wait 30 ms */ - } - else - addr[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */ - l_sect = sect; - } - } - - /* re-enable interrupts if necessary */ - if (flag){ - enable_interrupts(); - } - - /* wait at least 80us - let's wait 1 ms */ - udelay (1000); - - /* - * We wait for the last triggered sector - */ - if (l_sect < 0){ - goto DONE; - } - - start = get_timer (0); - last = start; - addr = (FLASH_WORD_SIZE *)(info->start[0] + ( - (info->start[l_sect] - info->start[0]) << sh8b)); - while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) { - if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) { - printf ("Timeout\n"); - return 1; - } - /* show that we're waiting */ - if ((now - last) > 1000) { /* every second */ - serial_putc ('.'); - last = now; - } - } - -DONE: - /* reset to read mode */ - addr = (FLASH_WORD_SIZE *)info->start[0]; - addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */ - - printf (" 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; 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 - */ -static int write_word (flash_info_t *info, ulong dest, ulong data) -{ - volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)info->start[0]; - volatile FLASH_WORD_SIZE *dest2; - volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data; - ulong start; - int flag; - int i; - unsigned char sh8b; - - /* Check the ROM CS */ - if ((info->start[0] >= ROM_CS1_START) && (info->start[0] < ROM_CS0_START)){ - sh8b = 3; - } - else{ - sh8b = 0; - } - - dest2 = (FLASH_WORD_SIZE *)(((dest - info->start[0]) << sh8b) + - info->start[0]); - - /* Check if Flash is (sufficiently) erased */ - if ((*dest2 & (FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) { - return (2); - } - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++){ - addr2[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00AA00AA; - addr2[ADDR1 << sh8b] = (FLASH_WORD_SIZE)0x00550055; - addr2[ADDR0 << sh8b] = (FLASH_WORD_SIZE)0x00A000A0; - - dest2[i << sh8b] = data2[i]; - - /* re-enable interrupts if necessary */ - if (flag){ - enable_interrupts(); - } - - /* data polling for D7 */ - start = get_timer (0); - while ((dest2[i << sh8b] & (FLASH_WORD_SIZE)0x00800080) != - (data2[i] & (FLASH_WORD_SIZE)0x00800080)) { - if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) { - return (1); - } - } - } - - return (0); -} - -/*----------------------------------------------------------------------- */ |