From ad218a868b57a69f189a6dfb438c77f46563431d Mon Sep 17 00:00:00 2001 From: Wolfgang Denk Date: Fri, 26 Aug 2011 02:25:40 +0000 Subject: ARM: remove broken "smdk2400" board Signed-off-by: Wolfgang Denk Cc: Gary Jennejohn --- board/samsung/smdk2400/flash.c | 492 ----------------------------------------- 1 file changed, 492 deletions(-) delete mode 100644 board/samsung/smdk2400/flash.c (limited to 'board/samsung/smdk2400/flash.c') diff --git a/board/samsung/smdk2400/flash.c b/board/samsung/smdk2400/flash.c deleted file mode 100644 index 47382fe..0000000 --- a/board/samsung/smdk2400/flash.c +++ /dev/null @@ -1,492 +0,0 @@ -/* - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH - * Marius Groeger - * - * (C) Copyright 2002 - * Gary Jennejohn, DENX Software Engineering, - * - * 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 - */ - -/* #define DEBUG */ - -#include -#include - -#define FLASH_BANK_SIZE 0x1000000 /* 2 x 8 MB */ -#define MAIN_SECT_SIZE 0x40000 /* 2 x 128 kB */ - -flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; - - -#define CMD_READ_ARRAY 0x00FF00FF -#define CMD_IDENTIFY 0x00900090 -#define CMD_ERASE_SETUP 0x00200020 -#define CMD_ERASE_CONFIRM 0x00D000D0 -#define CMD_PROGRAM 0x00400040 -#define CMD_RESUME 0x00D000D0 -#define CMD_SUSPEND 0x00B000B0 -#define CMD_STATUS_READ 0x00700070 -#define CMD_STATUS_RESET 0x00500050 - -#define BIT_BUSY 0x00800080 -#define BIT_ERASE_SUSPEND 0x00400040 -#define BIT_ERASE_ERROR 0x00200020 -#define BIT_PROGRAM_ERROR 0x00100010 -#define BIT_VPP_RANGE_ERROR 0x00080008 -#define BIT_PROGRAM_SUSPEND 0x00040004 -#define BIT_PROTECT_ERROR 0x00020002 -#define BIT_UNDEFINED 0x00010001 - -#define BIT_SEQUENCE_ERROR 0x00300030 -#define BIT_TIMEOUT 0x80000000 - -/*----------------------------------------------------------------------- - */ - -ulong flash_init (void) -{ - int i, j; - ulong size = 0; - - for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { - ulong flashbase = 0; - - flash_info[i].flash_id = - (INTEL_MANUFACT & FLASH_VENDMASK) | - (INTEL_ID_28F640J3A & FLASH_TYPEMASK); - flash_info[i].size = FLASH_BANK_SIZE; - flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT; - memset (flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT); - if (i == 0) - flashbase = CONFIG_SYS_FLASH_BASE; - else - panic ("configured too many flash banks!\n"); - for (j = 0; j < flash_info[i].sector_count; j++) { - flash_info[i].start[j] = flashbase; - - /* uniform sector size */ - flashbase += MAIN_SECT_SIZE; - } - size += flash_info[i].size; - } - - /* - * Protect monitor and environment sectors - */ - flash_protect ( FLAG_PROTECT_SET, - CONFIG_SYS_FLASH_BASE, - CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1, - &flash_info[0]); - - flash_protect ( FLAG_PROTECT_SET, - CONFIG_ENV_ADDR, - CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1, &flash_info[0]); - -#ifdef CONFIG_ENV_ADDR_REDUND - flash_protect ( FLAG_PROTECT_SET, - CONFIG_ENV_ADDR_REDUND, - CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1, - &flash_info[0]); -#endif - - return size; -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t * info) -{ - int i; - - switch (info->flash_id & FLASH_VENDMASK) { - case (INTEL_MANUFACT & FLASH_VENDMASK): - printf ("Intel: "); - break; - default: - printf ("Unknown Vendor "); - break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case (INTEL_ID_28F640J3A & FLASH_TYPEMASK): - printf ("2x 28F640J3A (64Mbit)\n"); - break; - default: - printf ("Unknown Chip Type\n"); - goto Done; - break; - } - - 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"); - -Done: ; -} - -/*----------------------------------------------------------------------- - */ - -int flash_error (ulong code) -{ - /* Check bit patterns */ - /* SR.7=0 is busy, SR.7=1 is ready */ - /* all other flags indicate error on 1 */ - /* SR.0 is undefined */ - /* Timeout is our faked flag */ - - /* sequence is described in Intel 290644-005 document */ - - /* check Timeout */ - if (code & BIT_TIMEOUT) { - puts ("Timeout\n"); - return ERR_TIMOUT; - } - - /* check Busy, SR.7 */ - if (~code & BIT_BUSY) { - puts ("Busy\n"); - return ERR_PROG_ERROR; - } - - /* check Vpp low, SR.3 */ - if (code & BIT_VPP_RANGE_ERROR) { - puts ("Vpp range error\n"); - return ERR_PROG_ERROR; - } - - /* check Device Protect Error, SR.1 */ - if (code & BIT_PROTECT_ERROR) { - puts ("Device protect error\n"); - return ERR_PROG_ERROR; - } - - /* check Command Seq Error, SR.4 & SR.5 */ - if (code & BIT_SEQUENCE_ERROR) { - puts ("Command seqence error\n"); - return ERR_PROG_ERROR; - } - - /* check Block Erase Error, SR.5 */ - if (code & BIT_ERASE_ERROR) { - puts ("Block erase error\n"); - return ERR_PROG_ERROR; - } - - /* check Program Error, SR.4 */ - if (code & BIT_PROGRAM_ERROR) { - puts ("Program error\n"); - return ERR_PROG_ERROR; - } - - /* check Block Erase Suspended, SR.6 */ - if (code & BIT_ERASE_SUSPEND) { - puts ("Block erase suspended\n"); - return ERR_PROG_ERROR; - } - - /* check Program Suspended, SR.2 */ - if (code & BIT_PROGRAM_SUSPEND) { - puts ("Program suspended\n"); - return ERR_PROG_ERROR; - } - - /* OK, no error */ - return ERR_OK; -} - -/*----------------------------------------------------------------------- - */ - -int flash_erase (flash_info_t * info, int s_first, int s_last) -{ - ulong result, result1; - int iflag, prot, sect; - int rc = ERR_OK; - ulong start; - -#ifdef USE_920T_MMU - int cflag; -#endif - - debug ("flash_erase: s_first %d s_last %d\n", s_first, s_last); - - /* first look for protection bits */ - - if (info->flash_id == FLASH_UNKNOWN) - return ERR_UNKNOWN_FLASH_TYPE; - - if ((s_first < 0) || (s_first > s_last)) { - return ERR_INVAL; - } - - if ((info->flash_id & FLASH_VENDMASK) != - (INTEL_MANUFACT & FLASH_VENDMASK)) { - return ERR_UNKNOWN_FLASH_VENDOR; - } - - 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"); - } - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ -#ifdef USE_920T_MMU - cflag = dcache_status (); - dcache_disable (); -#endif - iflag = disable_interrupts (); - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect <= s_last && !ctrlc (); sect++) { - - debug ("Erasing sector %2d @ %08lX... ", - sect, info->start[sect]); - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - if (info->protect[sect] == 0) { /* not protected */ - vu_long *addr = (vu_long *) (info->start[sect]); - ulong bsR7, bsR7_2, bsR5, bsR5_2; - - /* *addr = CMD_STATUS_RESET; */ - *addr = CMD_ERASE_SETUP; - *addr = CMD_ERASE_CONFIRM; - - /* wait until flash is ready */ - do { - /* check timeout */ - if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) { - *addr = CMD_STATUS_RESET; - result = BIT_TIMEOUT; - break; - } - - *addr = CMD_STATUS_READ; - result = *addr; - bsR7 = result & (1 << 7); - bsR7_2 = result & (1 << 23); - } while (!bsR7 | !bsR7_2); - - *addr = CMD_STATUS_READ; - result1 = *addr; - bsR5 = result1 & (1 << 5); - bsR5_2 = result1 & (1 << 21); -#ifdef SAMSUNG_FLASH_DEBUG - printf ("bsR5 %lx bsR5_2 %lx\n", bsR5, bsR5_2); - if (bsR5 != 0 && bsR5_2 != 0) - printf ("bsR5 %lx bsR5_2 %lx\n", bsR5, bsR5_2); -#endif - - *addr = CMD_READ_ARRAY; - *addr = CMD_RESUME; - - if ((rc = flash_error (result)) != ERR_OK) - goto outahere; -#if 0 - printf ("ok.\n"); - } else { /* it was protected */ - - printf ("protected!\n"); -#endif - } - } - -outahere: - /* allow flash to settle - wait 10 ms */ - udelay_masked (10000); - - if (iflag) - enable_interrupts (); - -#ifdef USE_920T_MMU - if (cflag) - dcache_enable (); -#endif - return rc; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash - */ - -static int write_word (flash_info_t * info, ulong dest, ulong data) -{ - vu_long *addr = (vu_long *) dest; - ulong result; - int rc = ERR_OK; - int iflag; - ulong start; - -#ifdef USE_920T_MMU - int cflag; -#endif - - /* - * Check if Flash is (sufficiently) erased - */ - result = *addr; - if ((result & data) != data) - return ERR_NOT_ERASED; - - /* - * Disable interrupts which might cause a timeout - * here. Remember that our exception vectors are - * at address 0 in the flash, and we don't want a - * (ticker) exception to happen while the flash - * chip is in programming mode. - */ -#ifdef USE_920T_MMU - cflag = dcache_status (); - dcache_disable (); -#endif - iflag = disable_interrupts (); - - /* *addr = CMD_STATUS_RESET; */ - *addr = CMD_PROGRAM; - *addr = data; - - /* arm simple, non interrupt dependent timer */ - start = get_timer(0); - - /* wait until flash is ready */ - do { - /* check timeout */ - if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) { - *addr = CMD_SUSPEND; - result = BIT_TIMEOUT; - break; - } - - *addr = CMD_STATUS_READ; - result = *addr; - } while (~result & BIT_BUSY); - - /* *addr = CMD_READ_ARRAY; */ - *addr = CMD_STATUS_READ; - result = *addr; - - rc = flash_error (result); - - if (iflag) - enable_interrupts (); - -#ifdef USE_920T_MMU - if (cflag) - dcache_enable (); -#endif - *addr = CMD_READ_ARRAY; - *addr = CMD_RESUME; - return rc; -} - -/*----------------------------------------------------------------------- - * Copy memory to flash. - */ - -int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt) -{ - ulong cp, wp, data; - int l; - int i, 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 << 24); - } - for (; i < 4 && cnt > 0; ++i) { - data = (data >> 8) | (*src++ << 24); - --cnt; - ++cp; - } - for (; cnt == 0 && i < 4; ++i, ++cp) { - data = (data >> 8) | (*(uchar *) cp << 24); - } - - if ((rc = write_word (info, wp, data)) != 0) { - return (rc); - } - wp += 4; - } - - /* - * handle word aligned part - */ - while (cnt >= 4) { - data = *((vu_long *) src); - if ((rc = write_word (info, wp, data)) != 0) { - return (rc); - } - src += 4; - wp += 4; - cnt -= 4; - } - - if (cnt == 0) { - return ERR_OK; - } - - /* - * handle unaligned tail bytes - */ - data = 0; - for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) { - data = (data >> 8) | (*src++ << 24); - --cnt; - } - for (; i < 4; ++i, ++cp) { - data = (data >> 8) | (*(uchar *) cp << 24); - } - - return write_word (info, wp, data); -} -- cgit v1.1