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			598 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			598 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * (C) Copyright 2003
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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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| 
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| /*
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|  * Modified 4/5/2001
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|  * Wait for completion of each sector erase command issued
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|  * 4/5/2001
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|  * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
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|  */
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| 
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| #include <common.h>
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| #include <asm/u-boot.h>
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| #include <asm/processor.h>
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| #include <ppc4xx.h>
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| 
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| flash_info_t	flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
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| 
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| /*-----------------------------------------------------------------------
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|  * Functions
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|  */
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| static ulong flash_get_size (vu_long *addr, flash_info_t *info);
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| static int write_word (flash_info_t *info, ulong dest, ulong data);
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| 
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| #ifdef MEIGSBOARD_ONBOARD_FLASH /* onboard = 2MB */
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| #  ifdef CONFIG_EXBITGEN
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| #     define FLASH_WORD_SIZE unsigned long
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| #  endif
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| #else /* Meigsboard socket flash = 512KB */
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| #  ifdef CONFIG_EXBITGEN
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| #    define FLASH_WORD_SIZE unsigned char
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| #  endif
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| #endif
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| 
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| #ifdef CONFIG_EXBITGEN
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| #define ADDR0           0x5555
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| #define ADDR1           0x2aaa
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| #define FLASH_WORD_SIZE unsigned char
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| #endif
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| 
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| /*-----------------------------------------------------------------------
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|  */
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| 
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| unsigned long flash_init (void)
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| {
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| 	unsigned long bank_size;
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| 	unsigned long tot_size;
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| 	unsigned long bank_addr;
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| 	int i;
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| 
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| 	/* Init: no FLASHes known */
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| 	for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
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| 		flash_info[i].flash_id = FLASH_UNKNOWN;
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| 		flash_info[i].size = 0;
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| 	}
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| 
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| 	tot_size = 0;
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| 
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| 	/* Detect Boot Flash */
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| 	bank_addr = CONFIG_SYS_FLASH0_BASE;
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| 	bank_size = flash_get_size((vu_long *)bank_addr, &flash_info[0]);
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| 	if (bank_size > 0) {
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| 		(void)flash_protect(FLAG_PROTECT_CLEAR,
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| 			bank_addr,
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| 			bank_addr + bank_size - 1,
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| 			&flash_info[0]);
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| 	}
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| 	if (flash_info[0].flash_id == FLASH_UNKNOWN) {
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| 		printf ("## Unknown FLASH on Boot Flash Bank\n");
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| 	}
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| 	flash_info[0].size = bank_size;
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| 	tot_size += bank_size;
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| 
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| 	/* Detect Application Flash */
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| 	bank_addr = CONFIG_SYS_FLASH1_BASE;
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| 	for (i = 1; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
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| 		bank_size = flash_get_size((vu_long *)bank_addr, &flash_info[i]);
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| 		if (flash_info[i].flash_id == FLASH_UNKNOWN) {
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| 			break;
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| 		}
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| 		if (bank_size > 0) {
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| 			(void)flash_protect(FLAG_PROTECT_CLEAR,
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| 				bank_addr,
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| 				bank_addr + bank_size - 1,
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| 				&flash_info[i]);
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| 		}
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| 		flash_info[i].size = bank_size;
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| 		tot_size += bank_size;
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| 		bank_addr += bank_size;
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| 	}
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| 	if (flash_info[1].flash_id == FLASH_UNKNOWN) {
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| 		printf ("## Unknown FLASH on Application Flash Bank\n");
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| 	}
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| 
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| 	/* Protect monitor and environment sectors */
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| #if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH0_BASE
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| 	flash_protect(FLAG_PROTECT_SET,
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| 		CONFIG_SYS_MONITOR_BASE,
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| 		CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
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| 		&flash_info[0]);
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| #if 0xfffffffc >= CONFIG_SYS_FLASH0_BASE
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| #if 0xfffffffc <= CONFIG_SYS_FLASH0_BASE + CONFIG_SYS_FLASH0_SIZE - 1
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| 	flash_protect(FLAG_PROTECT_SET,
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| 		0xfffffffc, 0xffffffff,
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| 		&flash_info[0]);
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| #endif
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| #endif
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| #endif
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| 
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| #if defined(CONFIG_ENV_IS_IN_FLASH) && defined(CONFIG_ENV_ADDR)
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| 	flash_protect(FLAG_PROTECT_SET,
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| 		CONFIG_ENV_ADDR,
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| 		CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
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| 		&flash_info[0]);
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| #endif
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| 
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| 	return tot_size;
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| }
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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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| 
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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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| 
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| 	switch (info->flash_id & FLASH_VENDMASK) {
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| 	case FLASH_MAN_AMD:	printf ("AMD ");		break;
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| 	case FLASH_MAN_FUJ:	printf ("FUJITSU ");		break;
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| 	case FLASH_MAN_SST:	printf ("SST ");		break;
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| 	default:		printf ("Unknown Vendor ");	break;
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| 	}
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| 
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| 	switch (info->flash_id & FLASH_TYPEMASK) {
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| 	case FLASH_AM040:	printf ("AM29F040 (512 Kbit, uniform sector size)\n");
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| 				break;
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| 	case FLASH_AM400B:	printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
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| 				break;
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| 	case FLASH_AM400T:	printf ("AM29LV400T (4 Mbit, top boot sector)\n");
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| 				break;
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| 	case FLASH_AM800B:	printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
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| 				break;
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| 	case FLASH_AM800T:	printf ("AM29LV800T (8 Mbit, top boot sector)\n");
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| 				break;
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| 	case FLASH_AM160B:	printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
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| 				break;
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| 	case FLASH_AM160T:	printf ("AM29LV160T (16 Mbit, top boot sector)\n");
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| 				break;
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| 	case FLASH_AM320B:	printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
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| 				break;
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| 	case FLASH_AM320T:	printf ("AM29LV320T (32 Mbit, top boot sector)\n");
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| 				break;
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| 	case FLASH_AMDLV033C:	printf ("AM29LV033C (32 Mbit, uniform sector size)\n");
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| 				break;
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| 	case FLASH_AMDLV065D:	printf ("AM29LV065D (64 Mbit, uniform sector size)\n");
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| 				break;
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| 	case FLASH_SST800A:	printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
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| 				break;
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| 	case FLASH_SST160A:	printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
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| 				break;
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| 	case FLASH_SST040:	printf ("SST39LF/VF040 (4 Mbit, uniform sector size)\n");
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| 				break;
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| 	default:		printf ("Unknown Chip Type\n");
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| 				break;
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| 	}
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| 
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| 	printf ("  Size: %ld KB in %d Sectors\n",
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| 		info->size >> 10, info->sector_count);
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| 
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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 % 5) == 0)
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| 			printf ("\n   ");
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| 		printf (" %08lX%s",
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| 			info->start[i],
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| 			info->protect[i] ? " (RO)" : "     "
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| 		);
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| 	}
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| 	printf ("\n");
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| }
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| 
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| /*-----------------------------------------------------------------------
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|  */
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| 
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| 
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| /*-----------------------------------------------------------------------
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|  */
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| 
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| /*
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|  * The following code cannot be run from FLASH!
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|  */
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| static ulong flash_get_size (vu_long *addr, flash_info_t *info)
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| {
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| 	short i;
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| 	FLASH_WORD_SIZE value;
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| 	ulong base = (ulong)addr;
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| 	volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
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| 
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| 	/* Write auto select command: read Manufacturer ID */
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| 	addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
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| 	addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
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| 	addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090;
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| 
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| 	value = addr2[0];
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| 
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| 	switch (value) {
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| 	case (FLASH_WORD_SIZE)AMD_MANUFACT:
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| 		info->flash_id = FLASH_MAN_AMD;
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| 		break;
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| 	case (FLASH_WORD_SIZE)FUJ_MANUFACT:
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| 		info->flash_id = FLASH_MAN_FUJ;
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| 		break;
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| 	case (FLASH_WORD_SIZE)SST_MANUFACT:
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| 		info->flash_id = FLASH_MAN_SST;
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| 		break;
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| 	default:
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| 		info->flash_id = FLASH_UNKNOWN;
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| 		info->sector_count = 0;
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| 		info->size = 0;
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| 		return (0);			/* no or unknown flash	*/
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| 	}
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| 
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| 	value = addr2[1];			/* device ID		*/
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| 
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| 	switch (value) {
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| 	case (FLASH_WORD_SIZE)AMD_ID_F040B:
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| 		info->flash_id += FLASH_AM040;
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| 		info->sector_count = 8;
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| 		info->size = 0x0080000; /* => 512 ko */
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| 		break;
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV400T:
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| 		info->flash_id += FLASH_AM400T;
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| 		info->sector_count = 11;
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| 		info->size = 0x00080000;
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| 		break;				/* => 0.5 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV400B:
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| 		info->flash_id += FLASH_AM400B;
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| 		info->sector_count = 11;
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| 		info->size = 0x00080000;
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| 		break;				/* => 0.5 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV800T:
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| 		info->flash_id += FLASH_AM800T;
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| 		info->sector_count = 19;
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| 		info->size = 0x00100000;
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| 		break;				/* => 1 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV800B:
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| 		info->flash_id += FLASH_AM800B;
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| 		info->sector_count = 19;
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| 		info->size = 0x00100000;
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| 		break;				/* => 1 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV160T:
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| 		info->flash_id += FLASH_AM160T;
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| 		info->sector_count = 35;
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| 		info->size = 0x00200000;
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| 		break;				/* => 2 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV160B:
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| 		info->flash_id += FLASH_AM160B;
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| 		info->sector_count = 35;
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| 		info->size = 0x00200000;
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| 		break;				/* => 2 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV033C:
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| 		info->flash_id += FLASH_AMDLV033C;
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| 		info->sector_count = 64;
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| 		info->size = 0x00400000;
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| 		break;				/* => 4 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV065D:
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| 		info->flash_id += FLASH_AMDLV065D;
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| 		info->sector_count = 128;
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| 		info->size = 0x00800000;
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| 		break;				/* => 8 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV320T:
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| 		info->flash_id += FLASH_AM320T;
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| 		info->sector_count = 67;
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| 		info->size = 0x00400000;
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| 		break;				/* => 4 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)AMD_ID_LV320B:
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| 		info->flash_id += FLASH_AM320B;
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| 		info->sector_count = 67;
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| 		info->size = 0x00400000;
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| 		break;				/* => 4 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)SST_ID_xF800A:
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| 		info->flash_id += FLASH_SST800A;
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| 		info->sector_count = 16;
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| 		info->size = 0x00100000;
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| 		break;				/* => 1 MB		*/
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| 
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| 	case (FLASH_WORD_SIZE)SST_ID_xF160A:
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| 		info->flash_id += FLASH_SST160A;
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| 		info->sector_count = 32;
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| 		info->size = 0x00200000;
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| 		break;				/* => 2 MB		*/
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| 	case (FLASH_WORD_SIZE)SST_ID_xF040:
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| 		info->flash_id += FLASH_SST040;
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| 		info->sector_count = 128;
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| 		info->size = 0x00080000;
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| 		break;				/* => 512KB		*/
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| 
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| 	default:
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| 		info->flash_id = FLASH_UNKNOWN;
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| 		return (0);			/* => no or unknown flash */
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| 
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| 	}
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| 
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| 	/* set up sector start address table */
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| 	if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
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| 		(info->flash_id  == FLASH_AM040) ||
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| 		(info->flash_id == FLASH_AMDLV033C) ||
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| 		(info->flash_id == FLASH_AMDLV065D)) {
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| 		ulong sectsize = info->size / info->sector_count;
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| 		for (i = 0; i < info->sector_count; i++)
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| 			info->start[i] = base + (i * sectsize);
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| 	} else {
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| 	    if (info->flash_id & FLASH_BTYPE) {
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| 		/* set sector offsets for bottom boot block type	*/
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| 		info->start[0] = base + 0x00000000;
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| 		info->start[1] = base + 0x00004000;
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| 		info->start[2] = base + 0x00006000;
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| 		info->start[3] = base + 0x00008000;
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| 		for (i = 4; i < info->sector_count; i++) {
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| 			info->start[i] = base + (i * 0x00010000) - 0x00030000;
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| 		}
 | |
| 	    } else {
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| 		/* set sector offsets for top boot block type		*/
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| 		i = info->sector_count - 1;
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| 		info->start[i--] = base + info->size - 0x00004000;
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| 		info->start[i--] = base + info->size - 0x00006000;
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| 		info->start[i--] = base + info->size - 0x00008000;
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| 		for (; i >= 0; i--) {
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| 			info->start[i] = base + i * 0x00010000;
 | |
| 		}
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| 	    }
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| 	}
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| 
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| 	/* check for protected sectors */
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| 	for (i = 0; i < info->sector_count; i++) {
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| 		/* read sector protection at sector address, (A7 .. A0) = 0x02 */
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| 		/* D0 = 1 if protected */
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| 
 | |
| 		addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
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| 		if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
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| 			info->protect[i] = 0;
 | |
| 		else
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| 			info->protect[i] = addr2[2] & 1;
 | |
| 	}
 | |
| 
 | |
| 	/* switch to the read mode */
 | |
| 	if (info->flash_id != FLASH_UNKNOWN) {
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| 		addr2 = (FLASH_WORD_SIZE *)info->start[0];
 | |
| 		*addr2 = (FLASH_WORD_SIZE)0x00F000F0;	/* reset bank */
 | |
| 	}
 | |
| 
 | |
| 	return (info->size);
 | |
| }
 | |
| 
 | |
| /*-----------------------------------------------------------------------
 | |
|  */
 | |
| 
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| int flash_erase (flash_info_t *info, int s_first, int s_last)
 | |
| {
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| 	volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
 | |
| 	volatile FLASH_WORD_SIZE *addr2;
 | |
| 	int flag, prot, sect;
 | |
| 	ulong start, now, last;
 | |
| 
 | |
| 	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) {
 | |
| 		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");
 | |
| 	}
 | |
| 
 | |
| 	start = get_timer (0);
 | |
| 	last  = start;
 | |
| 	/* Start erase on unprotected sectors */
 | |
| 	for (sect = s_first; sect <= s_last; sect++) {
 | |
| 		if (info->protect[sect] == 0) {	/* not protected */
 | |
| 			addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
 | |
| 
 | |
| 			/* Disable interrupts which might cause a timeout here */
 | |
| 			flag = disable_interrupts();
 | |
| 
 | |
| 			addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
 | |
| 			addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
 | |
| 			addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
 | |
| 			addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
 | |
| 			addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
 | |
| 			addr2[0] = (FLASH_WORD_SIZE)0x00300030;
 | |
| 
 | |
| 			/* re-enable interrupts if necessary */
 | |
| 			if (flag)
 | |
| 				enable_interrupts();
 | |
| 
 | |
| 			/* wait at least 80us - let's wait 1 ms */
 | |
| 			udelay (1000);
 | |
| 
 | |
| 			while ((addr2[0] & 0x00800080) !=
 | |
| 				(FLASH_WORD_SIZE) 0x00800080) {
 | |
| 				if ((now=get_timer(start)) >
 | |
| 					   CONFIG_SYS_FLASH_ERASE_TOUT) {
 | |
| 					printf ("Timeout\n");
 | |
| 					addr[0] = (FLASH_WORD_SIZE)0x00F000F0;
 | |
| 					return 1;
 | |
| 				}
 | |
| 
 | |
| 				/* show that we're waiting */
 | |
| 				if ((now - last) > 1000) {  /* every second  */
 | |
| 					putc ('.');
 | |
| 					last = now;
 | |
| 				}
 | |
| 			}
 | |
| 
 | |
| 			addr[0] = (FLASH_WORD_SIZE)0x00F000F0;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	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 = (FLASH_WORD_SIZE *)dest;
 | |
| 	volatile FLASH_WORD_SIZE *data2 = (FLASH_WORD_SIZE *)&data;
 | |
| 	ulong start;
 | |
| 	int flag;
 | |
| 	int i;
 | |
| 
 | |
| 	/* Check if Flash is (sufficiently) erased */
 | |
| 	if ((*((volatile ulong *)dest) & data) != data) {
 | |
| 		printf("dest = %08lx, *dest = %08lx, data = %08lx\n",
 | |
| 			dest, *(volatile ulong *)dest, data);
 | |
| 		return 2;
 | |
| 	}
 | |
| 
 | |
| 	for (i=0; i < 4/sizeof(FLASH_WORD_SIZE); i++) {
 | |
| 		/* Disable interrupts which might cause a timeout here */
 | |
| 		flag = disable_interrupts();
 | |
| 
 | |
| 		addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
 | |
| 		addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
 | |
| 		addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0;
 | |
| 		dest2[i] = data2[i];
 | |
| 
 | |
| 		/* re-enable interrupts if necessary */
 | |
| 		if (flag)
 | |
| 			enable_interrupts();
 | |
| 
 | |
| 		/* data polling for D7 */
 | |
| 		start = get_timer (0);
 | |
| 		while ((dest2[i] & 0x00800080) != (data2[i] & 0x00800080)) {
 | |
| 			if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
 | |
| 				addr2[0] = (FLASH_WORD_SIZE)0x00F000F0;
 | |
| 				return (1);
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	addr2[0] = (FLASH_WORD_SIZE)0x00F000F0;
 | |
| 
 | |
| 	return (0);
 | |
| }
 | |
| 
 | |
| /*-----------------------------------------------------------------------
 | |
|  */
 |