From affae2bff825c1a8d2cfeaf7b270188d251d39d2 Mon Sep 17 00:00:00 2001 From: wdenk Date: Sat, 17 Aug 2002 09:36:01 +0000 Subject: Initial revision --- board/esteem192e/flash.c | 1096 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1096 insertions(+) create mode 100644 board/esteem192e/flash.c (limited to 'board/esteem192e') diff --git a/board/esteem192e/flash.c b/board/esteem192e/flash.c new file mode 100644 index 000000000..55845fac1 --- /dev/null +++ b/board/esteem192e/flash.c @@ -0,0 +1,1096 @@ +/* + * (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 +#include + +flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ + +#ifdef CONFIG_FLASH_16BIT +#define FLASH_WORD_SIZE unsigned short +#define FLASH_ID_MASK 0xFFFF +#else +#define FLASH_WORD_SIZE unsigned long +#define FLASH_ID_MASK 0xFFFFFFFF +#endif + +/*----------------------------------------------------------------------- + * Functions + */ + +ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info); +#ifndef CONFIG_FLASH_16BIT +static int write_word (flash_info_t *info, ulong dest, ulong data); +#else +static int write_short (flash_info_t *info, ulong dest, ushort data); +#endif +/*int flash_write (uchar *, ulong, ulong); */ +/*flash_info_t *addr2info (ulong); */ + +static void flash_get_offsets (ulong base, flash_info_t *info); + +/*----------------------------------------------------------------------- + */ +unsigned long flash_init (void) +{ + volatile immap_t *immap = (immap_t *)CFG_IMMR; + volatile memctl8xx_t *memctl = &immap->im_memctl; + unsigned long size_b0, size_b1; + int i; + + /* Init: no FLASHes known */ + for (i=0; i size_b0) { + printf ("## ERROR: " + "Bank 1 (0x%08lx = %ld MB) > Bank 0 (0x%08lx = %ld MB)\n", + size_b1, size_b1<<20, + size_b0, size_b0<<20 + ); + flash_info[0].flash_id = FLASH_UNKNOWN; + flash_info[1].flash_id = FLASH_UNKNOWN; + flash_info[0].sector_count = -1; + flash_info[1].sector_count = -1; + flash_info[0].size = 0; + flash_info[1].size = 0; + return (0); + } + + /* Remap FLASH according to real size */ + memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000); + memctl->memc_br0 = CFG_FLASH_BASE | 0x00000801; /* (CFG_FLASH_BASE & BR_BA_MSK) | BR_MS_GPCM | BR_V;*/ + + /* Re-do sizing to get full correct info */ + + size_b0 = flash_get_size((volatile FLASH_WORD_SIZE *)CFG_FLASH_BASE, + &flash_info[0]); + flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]); + +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + /* monitor protection ON by default */ + (void)flash_protect(FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, + &flash_info[0]); +#endif + + if (size_b1) { + memctl->memc_or1 = CFG_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000); + memctl->memc_br1 = (CFG_FLASH_BASE | 0x00000801) + (size_b0 & BR_BA_MSK); + /*((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) | + BR_MS_GPCM | BR_V;*/ + + /* Re-do sizing to get full correct info */ + size_b1 = flash_get_size((volatile FLASH_WORD_SIZE *)(CFG_FLASH_BASE + size_b0), + &flash_info[1]); + + flash_get_offsets (CFG_FLASH_BASE + size_b0, &flash_info[1]); + +#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + /* monitor protection ON by default */ + (void)flash_protect(FLAG_PROTECT_SET, + CFG_MONITOR_BASE, + CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, + &flash_info[1]); +#endif + } else { + memctl->memc_br1 = 0; /* invalidate bank */ + + flash_info[1].flash_id = FLASH_UNKNOWN; + flash_info[1].sector_count = -1; + } + + flash_info[0].size = size_b0; + flash_info[1].size = size_b1; + + return (size_b0 + size_b1); +} + +/*----------------------------------------------------------------------- + */ +static void flash_get_offsets (ulong base, flash_info_t *info) +{ + int i; + + /* set up sector start adress table */ + if (info->flash_id & FLASH_BTYPE) { + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + +#ifndef CONFIG_FLASH_16BIT + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00008000; + info->start[3] = base + 0x0000C000; + info->start[4] = base + 0x00010000; + info->start[5] = base + 0x00014000; + info->start[6] = base + 0x00018000; + info->start[7] = base + 0x0001C000; + for (i = 8; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00020000) - 0x000E0000; + } + } + else { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00008000; + info->start[2] = base + 0x0000C000; + info->start[3] = base + 0x00010000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00020000) - 0x00060000; + } + } +#else + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00002000; + info->start[2] = base + 0x00004000; + info->start[3] = base + 0x00006000; + info->start[4] = base + 0x00008000; + info->start[5] = base + 0x0000A000; + info->start[6] = base + 0x0000C000; + info->start[7] = base + 0x0000E000; + for (i = 8; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00010000) - 0x00070000; + } + } + else { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00006000; + info->start[3] = base + 0x00008000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00010000) - 0x00030000; + } + } +#endif + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + +#ifndef CONFIG_FLASH_16BIT + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x00010000; + info->start[i--] = base + info->size - 0x00014000; + info->start[i--] = base + info->size - 0x00018000; + info->start[i--] = base + info->size - 0x0001C000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00020000; + } + + } else { + + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x00010000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00020000; + } + } +#else + info->start[i--] = base + info->size - 0x00002000; + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000A000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x0000E000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00010000; + } + + } else { + + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00010000; + } + } +#endif + } + + +} + +/*----------------------------------------------------------------------- + */ +void flash_print_info (flash_info_t *info) +{ + int i; + uchar *boottype; + uchar botboot[]=", bottom boot sect)\n"; + uchar topboot[]=", top boot sector)\n"; + + if (info->flash_id == FLASH_UNKNOWN) { + printf ("missing or unknown FLASH type\n"); + return; + } + + switch (info->flash_id & FLASH_VENDMASK) { + case FLASH_MAN_AMD: printf ("AMD "); break; + case FLASH_MAN_FUJ: printf ("FUJITSU "); break; + case FLASH_MAN_SST: printf ("SST "); break; + case FLASH_MAN_STM: printf ("STM "); break; + case FLASH_MAN_INTEL: printf ("INTEL "); break; + default: printf ("Unknown Vendor "); break; + } + + if (info->flash_id & 0x0001 ) { + boottype = botboot; + } else { + boottype = topboot; + } + + switch (info->flash_id & FLASH_TYPEMASK) { + case FLASH_AM400B: printf ("AM29LV400B (4 Mbit%s",boottype); + break; + case FLASH_AM400T: printf ("AM29LV400T (4 Mbit%s",boottype); + break; + case FLASH_AM800B: printf ("AM29LV800B (8 Mbit%s",boottype); + break; + case FLASH_AM800T: printf ("AM29LV800T (8 Mbit%s",boottype); + break; + case FLASH_AM160B: printf ("AM29LV160B (16 Mbit%s",boottype); + break; + case FLASH_AM160T: printf ("AM29LV160T (16 Mbit%s",boottype); + break; + case FLASH_AM320B: printf ("AM29LV320B (32 Mbit%s",boottype); + break; + case FLASH_AM320T: printf ("AM29LV320T (32 Mbit%s",boottype); + break; + case FLASH_INTEL800B: printf ("INTEL28F800B (8 Mbit%s",boottype); + break; + case FLASH_INTEL800T: printf ("INTEL28F800T (8 Mbit%s",boottype); + break; + case FLASH_INTEL160B: printf ("INTEL28F160B (16 Mbit%s",boottype); + break; + case FLASH_INTEL160T: printf ("INTEL28F160T (16 Mbit%s",boottype); + break; + case FLASH_INTEL320B: printf ("INTEL28F320B (32 Mbit%s",boottype); + break; + case FLASH_INTEL320T: printf ("INTEL28F320T (32 Mbit%s",boottype); + break; + +#if 0 /* enable when devices are available */ + + case FLASH_INTEL640B: printf ("INTEL28F640B (64 Mbit%s",boottype); + break; + case FLASH_INTEL640T: printf ("INTEL28F640T (64 Mbit%s",boottype); + break; +#endif + + 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"); + return; +} + +/*----------------------------------------------------------------------- + */ + + +/*----------------------------------------------------------------------- + */ + +/* + * The following code cannot be run from FLASH! + */ +ulong flash_get_size (volatile FLASH_WORD_SIZE *addr, flash_info_t *info) +{ + short i; + ulong base = (ulong)addr; + FLASH_WORD_SIZE value; + + /* Write auto select command: read Manufacturer ID */ + + +#ifndef CONFIG_FLASH_16BIT + + /* + * Note: if it is an AMD flash and the word at addr[0000] + * is 0x00890089 this routine will think it is an Intel + * flash device and may(most likely) cause trouble. + */ + + addr[0x0000] = 0x00900090; + if(addr[0x0000] != 0x00890089){ + addr[0x0555] = 0x00AA00AA; + addr[0x02AA] = 0x00550055; + addr[0x0555] = 0x00900090; +#else + + /* + * Note: if it is an AMD flash and the word at addr[0000] + * is 0x0089 this routine will think it is an Intel + * flash device and may(most likely) cause trouble. + */ + + addr[0x0000] = 0x0090; + + if(addr[0x0000] != 0x0089){ + addr[0x0555] = 0x00AA; + addr[0x02AA] = 0x0055; + addr[0x0555] = 0x0090; +#endif + } + value = addr[0]; + + switch (value) { + case (AMD_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_AMD; + break; + case (FUJ_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_FUJ; + break; + case (STM_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_STM; + break; + case (SST_MANUFACT & FLASH_ID_MASK): + info->flash_id = FLASH_MAN_SST; + break; + 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; + return (0); /* no or unknown flash */ + + } + + value = addr[1]; /* device ID */ + + switch (value) { + + case (AMD_ID_LV400T & FLASH_ID_MASK): + info->flash_id += FLASH_AM400T; + info->sector_count = 11; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (AMD_ID_LV400B & FLASH_ID_MASK): + info->flash_id += FLASH_AM400B; + info->sector_count = 11; + info->size = 0x00100000; + break; /* => 1 MB */ + + case (AMD_ID_LV800T & FLASH_ID_MASK): + info->flash_id += FLASH_AM800T; + info->sector_count = 19; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (AMD_ID_LV800B & FLASH_ID_MASK): + info->flash_id += FLASH_AM800B; + info->sector_count = 19; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (AMD_ID_LV160T & FLASH_ID_MASK): + info->flash_id += FLASH_AM160T; + info->sector_count = 35; + info->size = 0x00400000; + break; /* => 4 MB */ + + case (AMD_ID_LV160B & FLASH_ID_MASK): + info->flash_id += FLASH_AM160B; + info->sector_count = 35; + info->size = 0x00400000; + break; /* => 4 MB */ +#if 0 /* enable when device IDs are available */ + case (AMD_ID_LV320T & FLASH_ID_MASK): + info->flash_id += FLASH_AM320T; + info->sector_count = 67; + info->size = 0x00800000; + break; /* => 8 MB */ + + case (AMD_ID_LV320B & FLASH_ID_MASK): + info->flash_id += FLASH_AM320B; + info->sector_count = 67; + info->size = 0x00800000; + break; /* => 8 MB */ +#endif + + case (INTEL_ID_28F800B3T & FLASH_ID_MASK): + info->flash_id += FLASH_INTEL800T; + info->sector_count = 23; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (INTEL_ID_28F800B3B & FLASH_ID_MASK): + info->flash_id += FLASH_INTEL800B; + info->sector_count = 23; + info->size = 0x00200000; + break; /* => 2 MB */ + + case (INTEL_ID_28F160B3T & FLASH_ID_MASK): + info->flash_id += FLASH_INTEL160T; + info->sector_count = 39; + info->size = 0x00400000; + break; /* => 4 MB */ + + case (INTEL_ID_28F160B3B & FLASH_ID_MASK): + info->flash_id += FLASH_INTEL160B; + info->sector_count = 39; + info->size = 0x00400000; + break; /* => 4 MB */ + + case (INTEL_ID_28F320B3T & FLASH_ID_MASK): + info->flash_id += FLASH_INTEL320T; + info->sector_count = 71; + info->size = 0x00800000; + break; /* => 8 MB */ + + case (INTEL_ID_28F320B3B & FLASH_ID_MASK): + info->flash_id += FLASH_AM320B; + info->sector_count = 71; + info->size = 0x00800000; + break; /* => 8 MB */ + +#if 0 /* enable when devices are available */ + case (INTEL_ID_28F320B3T & FLASH_ID_MASK): + info->flash_id += FLASH_INTEL320T; + info->sector_count = 135; + info->size = 0x01000000; + break; /* => 16 MB */ + + case (INTEL_ID_28F320B3B & FLASH_ID_MASK): + info->flash_id += FLASH_AM320B; + info->sector_count = 135; + info->size = 0x01000000; + break; /* => 16 MB */ +#endif + default: + info->flash_id = FLASH_UNKNOWN; + return (0); /* => no or unknown flash */ + + } + + /* set up sector start adress table */ + if (info->flash_id & FLASH_BTYPE) { + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + +#ifndef CONFIG_FLASH_16BIT + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00008000; + info->start[3] = base + 0x0000C000; + info->start[4] = base + 0x00010000; + info->start[5] = base + 0x00014000; + info->start[6] = base + 0x00018000; + info->start[7] = base + 0x0001C000; + for (i = 8; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00020000) - 0x000E0000; + } + } + else { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00008000; + info->start[2] = base + 0x0000C000; + info->start[3] = base + 0x00010000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00020000) - 0x00060000; + } + } +#else + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00002000; + info->start[2] = base + 0x00004000; + info->start[3] = base + 0x00006000; + info->start[4] = base + 0x00008000; + info->start[5] = base + 0x0000A000; + info->start[6] = base + 0x0000C000; + info->start[7] = base + 0x0000E000; + for (i = 8; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00010000) - 0x00070000; + } + } + else { + /* set sector offsets for bottom boot block type */ + info->start[0] = base + 0x00000000; + info->start[1] = base + 0x00004000; + info->start[2] = base + 0x00006000; + info->start[3] = base + 0x00008000; + for (i = 4; i < info->sector_count; i++) { + info->start[i] = base + (i * 0x00010000) - 0x00030000; + } + } +#endif + } else { + /* set sector offsets for top boot block type */ + i = info->sector_count - 1; + if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) { + +#ifndef CONFIG_FLASH_16BIT + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x00010000; + info->start[i--] = base + info->size - 0x00014000; + info->start[i--] = base + info->size - 0x00018000; + info->start[i--] = base + info->size - 0x0001C000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00020000; + } + + } else { + + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x00010000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00020000; + } + } +#else + info->start[i--] = base + info->size - 0x00002000; + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + info->start[i--] = base + info->size - 0x0000A000; + info->start[i--] = base + info->size - 0x0000C000; + info->start[i--] = base + info->size - 0x0000E000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00010000; + } + + } else { + + info->start[i--] = base + info->size - 0x00004000; + info->start[i--] = base + info->size - 0x00006000; + info->start[i--] = base + info->size - 0x00008000; + for (; i >= 0; i--) { + info->start[i] = base + i * 0x00010000; + } + } +#endif + } + + /* check for protected sectors */ + for (i = 0; i < info->sector_count; i++) { + /* read sector protection at sector address, (A7 .. A0) = 0x02 */ + /* D0 = 1 if protected */ + addr = (volatile FLASH_WORD_SIZE *)(info->start[i]); + info->protect[i] = addr[2] & 1; + } + + /* + * Prevent writes to uninitialized FLASH. + */ + if (info->flash_id != FLASH_UNKNOWN) { + addr = (volatile FLASH_WORD_SIZE *)info->start[0]; + if( (info->flash_id & 0xFF00) == FLASH_MAN_INTEL){ + *addr = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */ + } else { + *addr = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */ + } + } + + return (info->size); +} + + +/*----------------------------------------------------------------------- + */ + +int flash_erase (flash_info_t *info, int s_first, int s_last) +{ + + volatile FLASH_WORD_SIZE *addr=(volatile FLASH_WORD_SIZE*)(info->start[0]); + int flag, prot, sect, l_sect, barf; + ulong start, now, last; + int rcode = 0; + + 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_AMD_COMP) && + ( (info->flash_id & FLASH_VENDMASK) != FLASH_MAN_INTEL ) ) ){ + 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; + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + if(info->flash_id < FLASH_AMD_COMP) { +#ifndef CONFIG_FLASH_16BIT + addr[0x0555] = 0x00AA00AA; + addr[0x02AA] = 0x00550055; + addr[0x0555] = 0x00800080; + addr[0x0555] = 0x00AA00AA; + addr[0x02AA] = 0x00550055; +#else + addr[0x0555] = 0x00AA; + addr[0x02AA] = 0x0055; + addr[0x0555] = 0x0080; + addr[0x0555] = 0x00AA; + addr[0x02AA] = 0x0055; +#endif + /* Start erase on unprotected sectors */ + for (sect = s_first; sect<=s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + addr = (volatile FLASH_WORD_SIZE *)(info->start[sect]); + addr[0] = (0x00300030 & FLASH_ID_MASK); + 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 = (volatile FLASH_WORD_SIZE*)(info->start[l_sect]); + while ((addr[0] & (0x00800080&FLASH_ID_MASK)) != + (0x00800080&FLASH_ID_MASK) ) + { + if ((now = get_timer(start)) > CFG_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 = (volatile FLASH_WORD_SIZE *)info->start[0]; + addr[0] = (0x00F000F0 & FLASH_ID_MASK); /* reset bank */ + } else { + + + for (sect = s_first; sect<=s_last; sect++) { + if (info->protect[sect] == 0) { /* not protected */ + barf = 0; +#ifndef CONFIG_FLASH_16BIT + addr = (vu_long*)(info->start[sect]); + addr[0] = 0x00200020; + addr[0] = 0x00D000D0; + while(!(addr[0] & 0x00800080)); /* wait for error or finish */ + if( addr[0] & 0x003A003A) { /* check for error */ + barf = addr[0] & 0x003A0000; + if( barf ) { + barf >>=16; + } else { + barf = addr[0] & 0x0000003A; + } + } +#else + addr = (vu_short*)(info->start[sect]); + addr[0] = 0x0020; + addr[0] = 0x00D0; + while(!(addr[0] & 0x0080)); /* wait for error or finish */ + if( addr[0] & 0x003A) /* check for error */ + barf = addr[0] & 0x003A; +#endif + if(barf) { + printf("\nFlash error in sector at %lx\n",(unsigned long)addr); + if(barf & 0x0002) printf("Block locked, not erased.\n"); + if((barf & 0x0030) == 0x0030) + printf("Command Sequence error.\n"); + if((barf & 0x0030) == 0x0020) + printf("Block Erase error.\n"); + if(barf & 0x0008) printf("Vpp Low error.\n"); + rcode = 1; + } else printf("."); + l_sect = sect; + } + addr = (volatile FLASH_WORD_SIZE *)info->start[0]; + addr[0] = (0x00FF00FF & FLASH_ID_MASK); /* reset bank */ + + } + + } + printf (" done\n"); + return rcode; +} + +/*----------------------------------------------------------------------- + */ + +/*----------------------------------------------------------------------- + * 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) +{ +#ifndef CONFIG_FLASH_16BIT + ulong cp, wp, data; + int l; +#else + ulong cp, wp; + ushort data; +#endif + int i, rc; + +#ifndef CONFIG_FLASH_16BIT + + + 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)); + +#else + wp = (addr & ~1); /* get lower word aligned address */ + + /* + * handle unaligned start byte + */ + if (addr - wp) { + data = 0; + data = (data << 8) | *src++; + --cnt; + if ((rc = write_short(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + } + + /* + * handle word aligned part + */ +/* l = 0; used for debuging */ + while (cnt >= 2) { + data = 0; + for (i=0; i<2; ++i) { + data = (data << 8) | *src++; + } + +/* if(!l){ + printf("%x",data); + l = 1; + } used for debuging */ + + if ((rc = write_short(info, wp, data)) != 0) { + return (rc); + } + wp += 2; + cnt -= 2; + } + + if (cnt == 0) { + return (0); + } + + /* + * handle unaligned tail bytes + */ + data = 0; + for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) { + data = (data << 8) | *src++; + --cnt; + } + for (; i<2; ++i, ++cp) { + data = (data << 8) | (*(uchar *)cp); + } + + return (write_short(info, wp, data)); + + +#endif +} + +/*----------------------------------------------------------------------- + * Write a word to Flash, returns: + * 0 - OK + * 1 - write timeout + * 2 - Flash not erased + */ +#ifndef CONFIG_FLASH_16BIT +static int write_word (flash_info_t *info, ulong dest, ulong data) +{ + vu_long *addr = (vu_long*)(info->start[0]); + ulong start,barf; + int flag; + + + /* Check if Flash is (sufficiently) erased */ + if ((*((vu_long *)dest) & data) != data) { + return (2); + } + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + if(info->flash_id > FLASH_AMD_COMP) { + /* AMD stuff */ + addr[0x0555] = 0x00AA00AA; + addr[0x02AA] = 0x00550055; + addr[0x0555] = 0x00A000A0; + } else { + /* intel stuff */ + *addr = 0x00400040; + } + *((vu_long *)dest) = data; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* data polling for D7 */ + start = get_timer (0); + + if(info->flash_id > FLASH_AMD_COMP) { + + while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) { + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + + } else { + + while(!(addr[0] & 0x00800080)){ /* wait for error or finish */ + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + + if( addr[0] & 0x003A003A) { /* check for error */ + barf = addr[0] & 0x003A0000; + if( barf ) { + barf >>=16; + } else { + barf = addr[0] & 0x0000003A; + } + printf("\nFlash write error at address %lx\n",(unsigned long)dest); + if(barf & 0x0002) printf("Block locked, not erased.\n"); + if(barf & 0x0010) printf("Programming error.\n"); + if(barf & 0x0008) printf("Vpp Low error.\n"); + return(2); + } + + + } + + return (0); + +} + +#else + +static int write_short (flash_info_t *info, ulong dest, ushort data) +{ + vu_short *addr = (vu_short*)(info->start[0]); + ulong start,barf; + int flag; + + /* Check if Flash is (sufficiently) erased */ + if ((*((vu_short *)dest) & data) != data) { + return (2); + } + + /* Disable interrupts which might cause a timeout here */ + flag = disable_interrupts(); + + if(info->flash_id < FLASH_AMD_COMP) { + /* AMD stuff */ + addr[0x0555] = 0x00AA; + addr[0x02AA] = 0x0055; + addr[0x0555] = 0x00A0; + } else { + /* intel stuff */ + *addr = 0x00D0; + *addr = 0x0040; + } + *((vu_short *)dest) = data; + + /* re-enable interrupts if necessary */ + if (flag) + enable_interrupts(); + + /* data polling for D7 */ + start = get_timer (0); + + if(info->flash_id < FLASH_AMD_COMP) { + /* AMD stuff */ + while ((*((vu_short *)dest) & 0x0080) != (data & 0x0080)) { + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { + return (1); + } + } + + } else { + /* intel stuff */ + while(!(addr[0] & 0x0080)){ /* wait for error or finish */ + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1); + } + + if( addr[0] & 0x003A) { /* check for error */ + barf = addr[0] & 0x003A; + printf("\nFlash write error at address %lx\n",(unsigned long)dest); + if(barf & 0x0002) printf("Block locked, not erased.\n"); + if(barf & 0x0010) printf("Programming error.\n"); + if(barf & 0x0008) printf("Vpp Low error.\n"); + return(2); + } + *addr = 0x00B0; + *addr = 0x0070; + while(!(addr[0] & 0x0080)){ /* wait for error or finish */ + if (get_timer(start) > CFG_FLASH_WRITE_TOUT) return (1); + } + + *addr = 0x00FF; + + } + + return (0); + +} + + +#endif + +/*----------------------------------------------------------------------- + */ + -- cgit v1.2.3