diff options
Diffstat (limited to 'target/linux/ifxmips/image/u-boot/files/board/danube/flash.c')
| -rw-r--r-- | target/linux/ifxmips/image/u-boot/files/board/danube/flash.c | 892 |
1 files changed, 0 insertions, 892 deletions
diff --git a/target/linux/ifxmips/image/u-boot/files/board/danube/flash.c b/target/linux/ifxmips/image/u-boot/files/board/danube/flash.c deleted file mode 100644 index 587c072..0000000 --- a/target/linux/ifxmips/image/u-boot/files/board/danube/flash.c +++ /dev/null @@ -1,892 +0,0 @@ -/* - * (C) Copyright 2003 - * 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 - */ -//joelin 10/07/2004 for MXIC MX29LV320ABTC-90 -#include <common.h> -#include <asm/danube.h> - -/* -#ifdef CONFIG_AMAZON - #define FLASH_DELAY {int i; \ - for(i=0;i<800;i++) \ - *((volatile u32 *)CFG_SDRAM_BASE_UNCACHE); \ - } -#else - #define FLASH_DELAY -#endif -*/ - -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ - -/* NOTE - CONFIG_FLASH_16BIT means the CPU interface is 16-bit, it - * has nothing to do with the flash chip being 8-bit or 16-bit. - */ -#ifdef CONFIG_FLASH_16BIT -typedef unsigned short FLASH_PORT_WIDTH; -typedef volatile unsigned short FLASH_PORT_WIDTHV; -#define FLASH_ID_MASK 0xFFFF -#else -typedef unsigned long FLASH_PORT_WIDTH; -typedef volatile unsigned long FLASH_PORT_WIDTHV; -#define FLASH_ID_MASK 0xFFFFFFFF -#endif - -#define FPW FLASH_PORT_WIDTH -#define FPWV FLASH_PORT_WIDTHV - -#define ORMASK(size) ((-size) & OR_AM_MSK) // 0xffff8000 - -#if 0 -#define FLASH_CYCLE1 0x0555 -#define FLASH_CYCLE2 0x02aa -#else -#define FLASH_CYCLE1 0x0554 //joelin for MX29LV320AT/B 0x0555 -#define FLASH_CYCLE2 0x02ab //joelin for MX29LV320AT/B 0x02aa -#endif - -/*----------------------------------------------------------------------- - * Functions - */ -static ulong flash_get_size(FPWV *addr, flash_info_t *info); -static void flash_reset(flash_info_t *info); -static int write_word_intel(flash_info_t *info, FPWV *dest, FPW data); -static int write_word_amd(flash_info_t *info, FPWV *dest, FPW data); -static void flash_get_offsets(ulong base, flash_info_t *info); -static flash_info_t *flash_get_info(ulong base); - -/*----------------------------------------------------------------------- - * flash_init() - * - * sets up flash_info and returns size of FLASH (bytes) - */ -unsigned long flash_init (void) -{ - unsigned long size = 0; - int i; - - /* Init: no FLASHes known */ - for (i=0; i < CFG_MAX_FLASH_BANKS; ++i) { // 1 bank - ulong flashbase = (i == 0) ? PHYS_FLASH_1 : PHYS_FLASH_2; // 0xb0000000, 0xb4000000 - - volatile ulong * buscon = (ulong *) - ((i == 0) ? DANUBE_EBU_BUSCON0 : DANUBE_EBU_BUSCON1); - - /* Disable write protection */ -// *buscon &= ~AMAZON_EBU_BUSCON0_WRDIS; - /* Enable write protection */ - *buscon |= DANUBE_EBU_BUSCON0_WRDIS; - -#if 1 - memset(&flash_info[i], 0, sizeof(flash_info_t)); -#endif - - flash_info[i].size = - flash_get_size((FPW *)flashbase, &flash_info[i]); - - if (flash_info[i].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx\n", - i, flash_info[i].size); - } - - size += flash_info[i].size; - } - -#if CFG_MONITOR_BASE >= CFG_FLASH_BASE // TEXT_BASE >= 0xB3000000 - /* monitor protection ON by default */ /* only use software protection, info->protect[i]=0/1 */ -/* flash_protect(FLAG_PROTECT_SET, - CFG_MONITOR_BASE, - CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, - flash_get_info(CFG_MONITOR_BASE)); -*/ - flash_protect(FLAG_PROTECT_CLEAR, // clear protect - CFG_MONITOR_BASE, - CFG_MONITOR_BASE+CFG_MONITOR_LEN-1, - flash_get_info(CFG_MONITOR_BASE)); - -#endif - -#ifdef CFG_ENV_IS_IN_FLASH /* 1 */ - /* ENV protection ON by default */ -/* flash_protect(FLAG_PROTECT_SET, - CFG_ENV_ADDR, - CFG_ENV_ADDR+CFG_ENV_SIZE-1, - flash_get_info(CFG_ENV_ADDR)); -*/ - flash_protect(FLAG_PROTECT_CLEAR, - CFG_ENV_ADDR, - CFG_ENV_ADDR+CFG_ENV_SIZE-1, - flash_get_info(CFG_ENV_ADDR)); - -#endif - - - return size; -} - -/*----------------------------------------------------------------------- - */ -static void flash_reset(flash_info_t *info) -{ - FPWV *base = (FPWV *)(info->start[0]); - - (*DANUBE_EBU_BUSCON0)&=(~0x80000000); // enable writing - (*DANUBE_EBU_BUSCON1)&=(~0x80000000); // enable writing - (*EBU_NAND_CON)=0; - /* Put FLASH back in read mode */ - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){ - *base = (FPW)0x00FF00FF; /* Intel Read Mode */ - asm("SYNC"); - } - else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD){ - *base = (FPW)0x00F000F0; /* AMD Read Mode */ - asm("SYNC"); //joelin - } - else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX){ - *base = (FPW)0x00F000F0; /* MXIC Read Mode */ - asm("SYNC"); //joelin - } - - (*DANUBE_EBU_BUSCON0)|=0x80000000; // disable writing - (*DANUBE_EBU_BUSCON1)|=0x80000000; // disable writing - -} - -/*----------------------------------------------------------------------- - */ -static void flash_get_offsets (ulong base, flash_info_t *info) -{ - int i; - - /* set up sector start address table */ - if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL - && (info->flash_id & FLASH_BTYPE)) { - int bootsect_size; /* number of bytes/boot sector */ - int sect_size; /* number of bytes/regular sector */ - - bootsect_size = 0x00002000 * (sizeof(FPW)/2); - sect_size = 0x00010000 * (sizeof(FPW)/2); - - /* set sector offsets for bottom boot block type */ - for (i = 0; i < 8; ++i) { - info->start[i] = base + (i * bootsect_size); - } - for (i = 8; i < info->sector_count; i++) { - info->start[i] = base + ((i - 7) * sect_size); - } - } - else if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD - && (info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U) { - - int sect_size; /* number of bytes/sector */ - - sect_size = 0x00010000 * (sizeof(FPW)/2); - - /* set up sector start address table (uniform sector type) */ - for( i = 0; i < info->sector_count; i++ ) - info->start[i] = base + (i * sect_size); - } - else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) - && ((info->flash_id & FLASH_TYPEMASK)==FLASH_28F128J3A)){ - int sect_size; - sect_size = 0x20000; - for(i=0;i < info->sector_count; i++) - info->start[i]= base + (i*sect_size); - } - else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) - && ((info->flash_id & FLASH_TYPEMASK)==FLASH_28F320J3A)){ - int sect_size; - sect_size = 0x20000; - for(i=0;i < info->sector_count; i++) - info->start[i]= base + (i*sect_size); - } -//joelin add for MX29LV320AB-- SA0~SA7:sector size=8K bytes ,SA9~SA70 :sector size=64k bytes - else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX) - && ((info->flash_id & FLASH_TYPEMASK)==FLASH_29LV320AB)){ - int bootsect_size; /* number of bytes/boot sector */ - int sect_size; /* number of bytes/regular sector */ - - bootsect_size = 0x00002000 * (sizeof(FPW)/2); - sect_size = 0x00010000 * (sizeof(FPW)/2); - - /* set sector offsets for bottom boot block type */ - for (i = 0; i < 8; ++i) { - info->start[i] = base + (i * bootsect_size); - } - for (i = 8; i < info->sector_count; i++) { - info->start[i] = base + ((i - 7) * sect_size); - } - } -//joelin add for MX29LV160BB-- SA0=16K,SA1,SA2=8K,SA3=32K bytes ,SA4~SA34 :sector size=64k bytes - else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX) - && ((info->flash_id & FLASH_TYPEMASK)==FLASH_29LV160BB)){ - int bootsect_size; /* number of bytes/boot sector */ - int sect_size; /* number of bytes/regular sector */ - - bootsect_size = 0x00002000 * (sizeof(FPW)/2); - sect_size = 0x00010000 * (sizeof(FPW)/2); -/* set sector offsets for bottom boot block type */ -//MX29LV160BB - info->start[0] = base ; //SA0=16K bytes - info->start[1] = info->start[0] + (1 * 0x00004000 * (sizeof(FPW)/2)); //SA1=8K bytes - info->start[2] = info->start[1] + (1 * 0x00002000 * (sizeof(FPW)/2)); //SA2=8K bytes - info->start[3] = info->start[2] + (1 * 0x00002000 * (sizeof(FPW)/2)); //SA3=32K bytes - - for (i = 4; i < info->sector_count; i++) { - info->start[i] = base + ((i - 3) * sect_size); - } - } -//liupeng add for MX29LV640BB-- SA0~SA7:sector size=8k bytes ,SA8~SA134 :sector size=64k bytes - else if(((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_MX) - && ((info->flash_id & FLASH_TYPEMASK)==FLASH_29LV640BB)){ - int bootsect_size; /* number of bytes/boot sector */ - int sect_size; /* number of bytes/regular sector */ - - bootsect_size = 0x00002000 * (sizeof(FPW)/2); - sect_size = 0x00010000 * (sizeof(FPW)/2); - - /* set sector offsets for bottom boot block type */ - for (i = 0; i < 8; ++i) { - info->start[i] = base + (i * bootsect_size); - } - for (i = 8; i < info->sector_count; i++) { - info->start[i] = base + ((i - 7) * sect_size); - } - } - else{ - printf("flash get offsets fail\n"); - } -} - -/*----------------------------------------------------------------------- - */ - -static flash_info_t *flash_get_info(ulong base) -{ - int i; - flash_info_t * info; - - for (i = 0; i < CFG_MAX_FLASH_BANKS; i ++) { - info = & flash_info[i]; - if (info->start[0] <= base && base < info->start[0] + info->size) - break; - } - - return i == CFG_MAX_FLASH_BANKS ? 0 : info; -} - -/*----------------------------------------------------------------------- - */ - -void flash_print_info (flash_info_t *info) -{ - int i; - uchar *boottype; - uchar *bootletter; - uchar *fmt; - uchar botbootletter[] = "B"; - uchar topbootletter[] = "T"; - uchar botboottype[] = "bottom boot sector"; - uchar topboottype[] = "top boot sector"; - - 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_BM: printf ("BRIGHT MICRO "); 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; - case FLASH_MAN_MX: printf ("MXIC "); break; - default: printf ("Unknown Vendor "); break; - } - - /* check for top or bottom boot, if it applies */ - if (info->flash_id & FLASH_BTYPE) { - boottype = botboottype; - bootletter = botbootletter; - } - else { - boottype = topboottype; - bootletter = topbootletter; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM640U: - fmt = "29LV641D (64 Mbit, uniform sectors)\n"; - break; - case FLASH_28F800C3B: - case FLASH_28F800C3T: - fmt = "28F800C3%s (8 Mbit, %s)\n"; - break; - case FLASH_INTEL800B: - case FLASH_INTEL800T: - fmt = "28F800B3%s (8 Mbit, %s)\n"; - break; - case FLASH_28F160C3B: - case FLASH_28F160C3T: - fmt = "28F160C3%s (16 Mbit, %s)\n"; - break; - case FLASH_INTEL160B: - case FLASH_INTEL160T: - fmt = "28F160B3%s (16 Mbit, %s)\n"; - break; - case FLASH_28F320C3B: - case FLASH_28F320C3T: - fmt = "28F320C3%s (32 Mbit, %s)\n"; - break; - case FLASH_INTEL320B: - case FLASH_INTEL320T: - fmt = "28F320B3%s (32 Mbit, %s)\n"; - break; - case FLASH_28F640C3B: - case FLASH_28F640C3T: - fmt = "28F640C3%s (64 Mbit, %s)\n"; - break; - case FLASH_INTEL640B: - case FLASH_INTEL640T: - fmt = "28F640B3%s (64 Mbit, %s)\n"; - break; - case FLASH_28F128J3A: - fmt = "28F128J3A (128 Mbit, 128 uniform sectors)\n"; - break; - case FLASH_28F320J3A: - fmt = "28F320J3A (32 Mbit, 32 uniform sectors)\n"; - break; - case FLASH_29LV640BB: //liupeng for MXIC FLASH_29LV640BB - fmt = "29LV640BB (64 Mbit, boot sector SA0~SA126 size 64k bytes,other sectors SA127~SA135 size 8k bytes)\n"; - break; - case FLASH_29LV320AB: //joelin for MXIC FLASH_29LV320AB - fmt = "29LV320AB (32 Mbit, boot sector SA0~SA7 size 8K bytes,other sectors SA8~SA70 size 64K bytes)\n"; - break; - case FLASH_29LV160BB: //joelin for MXIC FLASH_29LV160BB - fmt = "29LV160BB (16 Mbit, boot sector SA0 size 16K bytes,SA1,SA2 size 8K bytes,SA3 size 32k bytes,other sectors SA4~SA34 size 64K bytes)\n"; - break; - default: - fmt = "Unknown Chip Type\n"; - break; - } - - printf (fmt, bootletter, boottype); - - 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"); -} - -/*----------------------------------------------------------------------- - */ - -/* - * The following code cannot be run from FLASH! - */ - -ulong flash_get_size (FPWV *addr, flash_info_t *info) -{ - (*DANUBE_EBU_BUSCON0)=0x1d7ff; //value from Aikann, should be used on the real chip - (*EBU_ADDR_SEL_0) = 0x10000031; //starting address from 0xb0000000 - (*EBU_NAND_CON)=0; - (*DANUBE_EBU_BUSCON0)&=(~0x80000000); // enable writing - (*DANUBE_EBU_BUSCON1)&=(~0x80000000); // enable writing - /* Write auto select command: read Manufacturer ID */ - - /* Write auto select command sequence and test FLASH answer */ - addr[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* for AMD, Intel ignores this */ - asm("SYNC"); - addr[FLASH_CYCLE2] = (FPW)0x00550055; /* for AMD, Intel ignores this */ - asm("SYNC"); - addr[FLASH_CYCLE1] = (FPW)0x00900090; /* selects Intel or AMD */ - asm("SYNC"); - - /* The manufacturer codes are only 1 byte, so just use 1 byte. - * This works for any bus width and any FLASH device width. - */ - -// printf("\n type is %08lx", addr[1] & 0xff); //joelin 10/06/2004 flash type -// printf("\n type is %08lx", addr[0] & 0xff); //joelin 10/06/2004 flash type -// asm("SYNC"); - switch (addr[1] & 0xff) { - case (uchar)AMD_MANUFACT: - info->flash_id = FLASH_MAN_AMD; - break; - - case (uchar)INTEL_MANUFACT: // 0x0089 - info->flash_id = FLASH_MAN_INTEL; //0x00300000 - break; - -//joelin for MXIC - case (uchar)MX_MANUFACT: // 0x00c2 - info->flash_id = FLASH_MAN_MX ;//0x00030000 - break; - - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - break; -/* default: - info->flash_id = FLASH_MAN_INTEL; //0x00300000 - break;*/ - } - - /* Check 16 bits or 32 bits of ID so work on 32 or 16 bit bus. */ - if (info->flash_id != FLASH_UNKNOWN) switch (addr[0]) { - case (FPW)AMD_ID_LV640U: /* 29LV640 and 29LV641 have same ID */ - info->flash_id += FLASH_AM640U; - info->sector_count = 128; - info->size = 0x00800000 * (sizeof(FPW)/2); - break; /* => 8 or 16 MB */ - - case (FPW)INTEL_ID_28F800C3B: - info->flash_id += FLASH_28F800C3B; - info->sector_count = 23; - info->size = 0x00100000 * (sizeof(FPW)/2); - break; /* => 1 or 2 MB */ - - case (FPW)INTEL_ID_28F800B3B: - info->flash_id += FLASH_INTEL800B; - info->sector_count = 23; - info->size = 0x00100000 * (sizeof(FPW)/2); - break; /* => 1 or 2 MB */ - - case (FPW)INTEL_ID_28F160C3B: - info->flash_id += FLASH_28F160C3B; - info->sector_count = 39; - info->size = 0x00200000 * (sizeof(FPW)/2); - break; /* => 2 or 4 MB */ - - case (FPW)INTEL_ID_28F160B3B: - info->flash_id += FLASH_INTEL160B; - info->sector_count = 39; - info->size = 0x00200000 * (sizeof(FPW)/2); - break; /* => 2 or 4 MB */ - - case (FPW)INTEL_ID_28F320C3B: - info->flash_id += FLASH_28F320C3B; - info->sector_count = 71; - info->size = 0x00400000 * (sizeof(FPW)/2); - break; /* => 4 or 8 MB */ - - case (FPW)INTEL_ID_28F320B3B: - info->flash_id += FLASH_INTEL320B; - info->sector_count = 71; - info->size = 0x00400000 * (sizeof(FPW)/2); - break; /* => 4 or 8 MB */ - - case (FPW)INTEL_ID_28F640C3B: - info->flash_id += FLASH_28F640C3B; - info->sector_count = 135; - info->size = 0x00800000 * (sizeof(FPW)/2); - break; /* => 8 or 16 MB */ - - case (FPW)INTEL_ID_28F640B3B: - info->flash_id += FLASH_INTEL640B; - info->sector_count = 135; - info->size = 0x00800000 * (sizeof(FPW)/2); - break; /* => 8 or 16 MB */ - - case (FPW)INTEL_ID_28F128J3A: - info->flash_id +=FLASH_28F128J3A; - info->sector_count = 128; - info->size = 0x01000000 * (sizeof(FPW)/2); - break; /* => 16 MB */ - case (FPW)INTEL_ID_28F320J3A: - info->flash_id += FLASH_28F320J3A; - info->sector_count = 32; - info->size = 0x00400000 * (sizeof(FPW)/2); - break; -//joelin for MXIC - case (FPW)MX_ID_29LV320AB: - info->flash_id += FLASH_29LV320AB; - info->sector_count = 71; - info->size = 0x00400000 * (sizeof(FPW)/2); - break; /* => 4 MB */ - /* => 4 MB */ -//joelin for MXIC - case (FPW)MX_ID_29LV160BB: - info->flash_id += FLASH_29LV160BB; - info->sector_count = 35; - info->size = 0x00200000 * (sizeof(FPW)/2); - break; /* => 2 MB */ - /* => 2 MB */ - /* liupeng*/ - case (FPW)MX_ID_29LV640BB: - info->flash_id += FLASH_29LV640BB; - info->sector_count = 135; - info->size = 0x00800000 * (sizeof(FPW)/2); - break; /* => 2 MB */ - default: - info->flash_id = FLASH_UNKNOWN; - info->sector_count = 0; - info->size = 0; - return (0); /* => no or unknown flash */ -/* default: - info->flash_id += FLASH_28F320J3A; - info->sector_count = 32; - info->size = 0x00400000 * (sizeof(FPW)/2); - break;*/ - } - - - (*DANUBE_EBU_BUSCON0)|=0x80000000; // disable writing - (*DANUBE_EBU_BUSCON1)|=0x80000000; // disable writing - - flash_get_offsets((ulong)addr, info); - - /* Put FLASH back in read mode */ - flash_reset(info); - - return (info->size); -} - -/*----------------------------------------------------------------------- - */ - -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ - FPWV *addr; - int flag, prot, sect; - int intel = (info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL; - 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; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_INTEL800B: - case FLASH_INTEL160B: - case FLASH_INTEL320B: - case FLASH_INTEL640B: - case FLASH_28F800C3B: - case FLASH_28F160C3B: - case FLASH_28F320C3B: - case FLASH_28F640C3B: - case FLASH_28F128J3A: - case FLASH_28F320J3A: - case FLASH_AM640U: - case FLASH_29LV640BB: //liupeng for MXIC MX29LV640BB - case FLASH_29LV320AB: //joelin for MXIC MX29LV320AB - case FLASH_29LV160BB: //joelin for MXIC MX29LV160BB - break; - case FLASH_UNKNOWN: - default: - printf ("Can't erase unknown flash type %08lx - aborted\n", - info->flash_id); - 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"); - } - - last = get_timer(0); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last && rcode == 0; sect++) { - - if (info->protect[sect] != 0) /* protected, skip it */ - continue; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - (*DANUBE_EBU_BUSCON0)&=(~0x80000000); // enable writing - (*DANUBE_EBU_BUSCON1)&=(~0x80000000); // enable writing - (*EBU_NAND_CON)=0; - addr = (FPWV *)(info->start[sect]); - if (intel) { - *addr = (FPW)0x00500050; /* clear status register */ - *addr = (FPW)0x00200020; /* erase setup */ - *addr = (FPW)0x00D000D0; /* erase confirm */ - asm("SYNC"); - } - else { - /* must be AMD style if not Intel */ - FPWV *base; /* first address in bank */ - - base = (FPWV *)(info->start[0]); - base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */ - base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */ - base[FLASH_CYCLE1] = (FPW)0x00800080; /* erase mode */ - base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */ - base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */ - *addr = (FPW)0x00300030; /* erase sector */ - } - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - start = get_timer(0); - - /* wait at least 50us for AMD, 80us for Intel. - * Let's wait 1 ms. - */ - udelay (1000); - - while ((*addr & (FPW)0x00800080) != (FPW)0x00800080) { - if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) { - printf ("Erase Timeout\n"); - - if (intel) { - /* suspend erase */ - *addr = (FPW)0x00B000B0; - } - - flash_reset(info); /* reset to read mode */ - rcode = 1; /* failed */ - break; - } - - /* show that we're waiting */ - if ((get_timer(last)) > CFG_HZ) {/* every second */ - putc ('.'); - last = get_timer(0); - } - } - - -//joelin for MXIC - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_MX: //joelin for MXIC - break; - default: - if((*addr & (FPW)0x00200020) != (FPW)0x0) - printf("Erase Error\n"); - break; - } - - - - /* show that we're waiting */ - if ((get_timer(last)) > CFG_HZ) { /* every second */ - putc ('.'); - last = get_timer(0); - } - - //flash_reset(info); /* reset to read mode */ - } - - (*DANUBE_EBU_BUSCON0)|=0x80000000; // disable writing - (*DANUBE_EBU_BUSCON1)|=0x80000000; // disable writing - - 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) -{ - FPW data = 0; /* 16 or 32 bit word, matches flash bus width on MPC8XX */ - int bytes; /* number of bytes to program in current word */ - int left; /* number of bytes left to program */ - int i, res; - - for (left = cnt, res = 0; - left > 0 && res == 0; - addr += sizeof(data), left -= sizeof(data) - bytes) { - - bytes = addr & (sizeof(data) - 1); - addr &= ~(sizeof(data) - 1); - - /* combine source and destination data so can program - * an entire word of 16 or 32 bits - */ - for (i = 0; i < sizeof(data); i++) { - data <<= 8; - if (i < bytes || i - bytes >= left ) - data += *((uchar *)addr + i); - else - data += *src++; - } - - /* write one word to the flash */ - switch (info->flash_id & FLASH_VENDMASK) { - case FLASH_MAN_AMD: - case FLASH_MAN_MX: //joelin for MXIC - res = write_word_amd(info, (FPWV *)addr, data); - break; - case FLASH_MAN_INTEL: - res = write_word_intel(info, (FPWV *)addr, data); - break; - default: - /* unknown flash type, error! */ - printf ("missing or unknown FLASH type\n"); - res = 1; /* not really a timeout, but gives error */ - break; - } - } - - return (res); -} - -/*----------------------------------------------------------------------- - * Write a word to Flash for AMD FLASH - * A word is 16 or 32 bits, whichever the bus width of the flash bank - * (not an individual chip) is. - * - * returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word_amd (flash_info_t *info, FPWV *dest, FPW data) -{ - ulong start; - int flag; - int res = 0; /* result, assume success */ - FPWV *base; /* first address in flash bank */ - - /* Check if Flash is (sufficiently) erased */ - if ((*dest & data) != data) { - return (2); - } - - base = (FPWV *)(info->start[0]); - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - (*DANUBE_EBU_BUSCON0)&=(~0x80000000); // enable writing - (*DANUBE_EBU_BUSCON1)&=(~0x80000000); // enable writing - (*EBU_NAND_CON)=0; - - base[FLASH_CYCLE1] = (FPW)0x00AA00AA; /* unlock */ - base[FLASH_CYCLE2] = (FPW)0x00550055; /* unlock */ - base[FLASH_CYCLE1] = (FPW)0x00A000A0; /* selects program mode */ - - *dest = data; /* start programming the data */ - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - start = get_timer (0); - - /* data polling for D7 */ - while (res == 0 && (*dest & (FPW)0x00800080) != (data & (FPW)0x00800080)) { - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - *dest = (FPW)0x00F000F0; /* reset bank */ - res = 1; - } - } - - (*DANUBE_EBU_BUSCON0)|=0x80000000; // disable writing - (*DANUBE_EBU_BUSCON1)|=0x80000000; // disable writing - - return (res); -} - -/*----------------------------------------------------------------------- - * Write a word to Flash for Intel FLASH - * A word is 16 or 32 bits, whichever the bus width of the flash bank - * (not an individual chip) is. - * - * returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_word_intel (flash_info_t *info, FPWV *dest, FPW data) -{ - ulong start; - int flag; - int res = 0; /* result, assume success */ - - /* Check if Flash is (sufficiently) erased */ - if ((*dest & data) != data) { - return (2); - } - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - (*DANUBE_EBU_BUSCON0)&=(~0x80000000); // enable writing - (*DANUBE_EBU_BUSCON1)&=(~0x80000000); // enable writing - (*EBU_NAND_CON)=0; - *dest = (FPW)0x00500050; /* clear status register */ - *dest = (FPW)0x00FF00FF; /* make sure in read mode */ - *dest = (FPW)0x00400040; /* program setup */ - *dest = data; /* start programming the data */ - asm("SYNC"); - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - start = get_timer (0); - - while (res == 0 && (*dest & (FPW)0x00800080) != (FPW)0x00800080) { - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - *dest = (FPW)0x00B000B0; /* Suspend program */ - res = 1; - } - } - - if (res == 0 && (*dest & (FPW)0x00100010)) - res = 1; /* write failed, time out error is close enough */ - - *dest = (FPW)0x00500050; /* clear status register */ - flash_reset(info); - - (*DANUBE_EBU_BUSCON0)|=0x80000000; // disable writing - (*DANUBE_EBU_BUSCON1)|=0x80000000; // disable writing - - return (res); -} |