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Diffstat (limited to 'board/mvs1/flash.c')
| -rw-r--r-- | board/mvs1/flash.c | 719 |
1 files changed, 0 insertions, 719 deletions
diff --git a/board/mvs1/flash.c b/board/mvs1/flash.c deleted file mode 100644 index a52fe55..0000000 --- a/board/mvs1/flash.c +++ /dev/null @@ -1,719 +0,0 @@ -/* - * (C) Copyright 2000 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * Changes for MATRIX Vision MVsensor (C) Copyright 2001 - * MATRIX Vision GmbH / hg, info@matrix-vision.de - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <mpc8xx.h> - -#undef MVDEBUG -#ifdef MVDEBUG -#define mvdebug debug -#else -#define mvdebug(p) do {} while (0) -#endif - - -flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */ - - -#ifdef CONFIG_MVS_16BIT_FLASH - #define FLASH_DATA_MASK 0xffff - #define FLASH_SHIFT 0 -#else - #define FLASH_DATA_MASK 0xffffffff - #define FLASH_SHIFT 1 -#endif - - -/*----------------------------------------------------------------------- - * Functions - */ -static ulong flash_get_size (vu_long *address, flash_info_t *info); -static int write_word (flash_info_t *info, ulong dest, ulong data); -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<CFG_MAX_FLASH_BANKS; ++i) { - flash_info[i].flash_id = FLASH_UNKNOWN; - } - - /* Static FLASH Bank configuration here - FIXME XXX */ - - size_b0 = flash_get_size((vu_long *)FLASH_BASE0_PRELIM, &flash_info[0]); - - if (flash_info[0].flash_id == FLASH_UNKNOWN) { - printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n", - size_b0, size_b0<<20); - } - -#if defined (FLASH_BASE1_PRELIM) - size_b1 = flash_get_size((vu_long *)FLASH_BASE1_PRELIM, &flash_info[1]); - - if (size_b1 > 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); - } -#else - size_b1 = 0; -#endif - - /* Remap FLASH according to real size */ - memctl->memc_or0 = CFG_OR_TIMING_FLASH | (-size_b0 & 0xFFFF8000); -#ifdef CONFIG_MVS_16BIT_FLASH - memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_PS_16 | BR_MS_GPCM | BR_V; -#else - memctl->memc_br0 = (CFG_FLASH_BASE & BR_BA_MSK) | BR_PS_32 | BR_MS_GPCM | BR_V; -#endif - - /* Re-do sizing to get full correct info */ - size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]); - - flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]); - - /* monitor protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CFG_FLASH_BASE, - CFG_FLASH_BASE+monitor_flash_len-1, - &flash_info[0]); - - if (size_b1) { - memctl->memc_or1 = CFG_OR_TIMING_FLASH | (-size_b1 & 0xFFFF8000); -#ifdef CONFIG_MVS_16BIT_FLASH - memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) | - BR_PS_16 | BR_MS_GPCM | BR_V; -#else - memctl->memc_br1 = ((CFG_FLASH_BASE + size_b0) & BR_BA_MSK) | - BR_PS_32 | BR_MS_GPCM | BR_V; -#endif - /* Re-do sizing to get full correct info */ - size_b1 = flash_get_size((vu_long *)(CFG_FLASH_BASE + size_b0), - &flash_info[1]); - - flash_get_offsets (CFG_FLASH_BASE + size_b0, &flash_info[1]); - - /* monitor protection ON by default */ - flash_protect(FLAG_PROTECT_SET, - CFG_FLASH_BASE, - CFG_FLASH_BASE+monitor_flash_len-1, - &flash_info[1]); - } 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 address table */ - if (info->flash_id & FLASH_BTYPE) - { /* bottom boot sector types - these are the useful ones! */ - /* set sector offsets for bottom boot block type */ - if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) - { /* AMDLV320B has 8 x 8k bottom boot sectors */ - for (i = 0; i < 8; i++) /* +8k */ - info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT)); - for (; i < info->sector_count; i++) /* +64k */ - info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00070000 << FLASH_SHIFT); - } - else - { /* other types have 4 bottom boot sectors (16,8,8,32) */ - i = 0; - info->start[i++] = base + 0x00000000; /* - */ - info->start[i++] = base + (0x00004000 << FLASH_SHIFT); /* +16k */ - info->start[i++] = base + (0x00006000 << FLASH_SHIFT); /* +8k */ - info->start[i++] = base + (0x00008000 << FLASH_SHIFT); /* +8k */ - info->start[i++] = base + (0x00010000 << FLASH_SHIFT); /* +32k */ - for (; i < info->sector_count; i++) /* +64k */ - info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)) - (0x00030000 << FLASH_SHIFT); - } - } - else - { /* top boot sector types - not so useful */ - /* set sector offsets for top boot block type */ - if ((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) - { /* AMDLV320T has 8 x 8k top boot sectors */ - for (i = 0; i < info->sector_count - 8; i++) /* +64k */ - info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)); - for (; i < info->sector_count; i++) /* +8k */ - info->start[i] = base + (i * (0x00002000 << FLASH_SHIFT)); - } - else - { /* other types have 4 top boot sectors (32,8,8,16) */ - for (i = 0; i < info->sector_count - 4; i++) /* +64k */ - info->start[i] = base + (i * (0x00010000 << FLASH_SHIFT)); - - info->start[i++] = base + info->size - (0x00010000 << FLASH_SHIFT); /* -32k */ - info->start[i++] = base + info->size - (0x00008000 << FLASH_SHIFT); /* -8k */ - info->start[i++] = base + info->size - (0x00006000 << FLASH_SHIFT); /* -8k */ - info->start[i] = base + info->size - (0x00004000 << FLASH_SHIFT); /* -16k */ - } - } -} - -/*----------------------------------------------------------------------- - */ -void flash_print_info (flash_info_t *info) -{ - int i; - - 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_STM: printf ("ST "); break; - default: printf ("Unknown Vendor "); break; - } - - switch (info->flash_id & FLASH_TYPEMASK) { - case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n"); - break; - case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n"); - break; - case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n"); - break; - case FLASH_STMW320DB: printf ("M29W320B (32 Mbit, bottom boot sect)\n"); - break; - case FLASH_STMW320DT: printf ("M29W320T (32 Mbit, top boot sector)\n"); - break; - 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; 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! - */ - -#define AMD_ID_LV160T_MVS (AMD_ID_LV160T & FLASH_DATA_MASK) -#define AMD_ID_LV160B_MVS (AMD_ID_LV160B & FLASH_DATA_MASK) -#define AMD_ID_LV320T_MVS (AMD_ID_LV320T & FLASH_DATA_MASK) -#define AMD_ID_LV320B_MVS (AMD_ID_LV320B & FLASH_DATA_MASK) -#define STM_ID_W320DT_MVS (STM_ID_29W320DT & FLASH_DATA_MASK) -#define STM_ID_W320DB_MVS (STM_ID_29W320DB & FLASH_DATA_MASK) -#define AMD_MANUFACT_MVS (AMD_MANUFACT & FLASH_DATA_MASK) -#define FUJ_MANUFACT_MVS (FUJ_MANUFACT & FLASH_DATA_MASK) -#define STM_MANUFACT_MVS (STM_MANUFACT & FLASH_DATA_MASK) - -#define AUTOSELECT_ADDR1 0x0555 -#define AUTOSELECT_ADDR2 0x02AA -#define AUTOSELECT_ADDR3 AUTOSELECT_ADDR1 - -#define AUTOSELECT_DATA1 (0x00AA00AA & FLASH_DATA_MASK) -#define AUTOSELECT_DATA2 (0x00550055 & FLASH_DATA_MASK) -#define AUTOSELECT_DATA3 (0x00900090 & FLASH_DATA_MASK) - -#define RESET_BANK_DATA (0x00F000F0 & FLASH_DATA_MASK) - -static ulong flash_get_size (vu_long *address, flash_info_t *info) -{ - short i; -#ifdef CONFIG_MVS_16BIT_FLASH - ushort value; - vu_short *addr = (vu_short *)address; -#else - ulong value; - vu_long *addr = (vu_long *)address; -#endif - ulong base = (ulong)address; - - /* Write auto select command: read Manufacturer ID */ - addr[AUTOSELECT_ADDR1] = AUTOSELECT_DATA1; - addr[AUTOSELECT_ADDR2] = AUTOSELECT_DATA2; - addr[AUTOSELECT_ADDR3] = AUTOSELECT_DATA3; - - value = addr[0]; /* manufacturer ID */ - switch (value) { - case AMD_MANUFACT_MVS: - info->flash_id = FLASH_MAN_AMD; - break; - case FUJ_MANUFACT_MVS: - info->flash_id = FLASH_MAN_FUJ; - break; - case STM_MANUFACT_MVS: - info->flash_id = FLASH_MAN_STM; - 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_LV160T_MVS: - info->flash_id += FLASH_AM160T; - info->sector_count = 37; - info->size = (0x00200000 << FLASH_SHIFT); - break; /* => 2 or 4 MB */ - - case AMD_ID_LV160B_MVS: - info->flash_id += FLASH_AM160B; - info->sector_count = 37; - info->size = (0x00200000 << FLASH_SHIFT); - break; /* => 2 or 4 MB */ - - case AMD_ID_LV320T_MVS: - info->flash_id += FLASH_AM320T; - info->sector_count = 71; - info->size = (0x00400000 << FLASH_SHIFT); - break; /* => 4 or 8 MB */ - - case AMD_ID_LV320B_MVS: - info->flash_id += FLASH_AM320B; - info->sector_count = 71; - info->size = (0x00400000 << FLASH_SHIFT); - break; /* => 4 or 8MB */ - - case STM_ID_W320DT_MVS: - info->flash_id += FLASH_STMW320DT; - info->sector_count = 67; - info->size = (0x00400000 << FLASH_SHIFT); - break; /* => 4 or 8 MB */ - - case STM_ID_W320DB_MVS: - info->flash_id += FLASH_STMW320DB; - info->sector_count = 67; - info->size = (0x00400000 << FLASH_SHIFT); - break; /* => 4 or 8MB */ - - default: - info->flash_id = FLASH_UNKNOWN; - return (0); /* => no or unknown flash */ - - } - - /* set up sector start address table */ - flash_get_offsets (base, info); - - /* 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 */ -#ifdef CONFIG_MVS_16BIT_FLASH - addr = (vu_short *)(info->start[i]); -#else - addr = (vu_long *)(info->start[i]); -#endif - info->protect[i] = addr[2] & 1; - } - - /* - * Prevent writes to uninitialized FLASH. - */ - if (info->flash_id != FLASH_UNKNOWN) { -#ifdef CONFIG_MVS_16BIT_FLASH - addr = (vu_short *)info->start[0]; -#else - addr = (vu_long *)info->start[0]; -#endif - *addr = RESET_BANK_DATA; /* reset bank */ - } - - return (info->size); -} - - -/*----------------------------------------------------------------------- - */ - -#define ERASE_ADDR1 0x0555 -#define ERASE_ADDR2 0x02AA -#define ERASE_ADDR3 ERASE_ADDR1 -#define ERASE_ADDR4 ERASE_ADDR1 -#define ERASE_ADDR5 ERASE_ADDR2 - -#define ERASE_DATA1 (0x00AA00AA & FLASH_DATA_MASK) -#define ERASE_DATA2 (0x00550055 & FLASH_DATA_MASK) -#define ERASE_DATA3 (0x00800080 & FLASH_DATA_MASK) -#define ERASE_DATA4 ERASE_DATA1 -#define ERASE_DATA5 ERASE_DATA2 - -#define ERASE_SECTOR_DATA (0x00300030 & FLASH_DATA_MASK) -#define ERASE_CHIP_DATA (0x00100010 & FLASH_DATA_MASK) -#define ERASE_CONFIRM_DATA (0x00800080 & FLASH_DATA_MASK) - -int flash_erase (flash_info_t *info, int s_first, int s_last) -{ -#ifdef CONFIG_MVS_16BIT_FLASH - vu_short *addr = (vu_short *)(info->start[0]); -#else - vu_long *addr = (vu_long *)(info->start[0]); -#endif - int flag, prot, sect, l_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) || - (info->flash_id > FLASH_AMD_COMP)) { - 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"); - } - - l_sect = -1; - - /* Disable interrupts which might cause a timeout here */ - flag = disable_interrupts(); - - addr[ERASE_ADDR1] = ERASE_DATA1; - addr[ERASE_ADDR2] = ERASE_DATA2; - addr[ERASE_ADDR3] = ERASE_DATA3; - addr[ERASE_ADDR4] = ERASE_DATA4; - addr[ERASE_ADDR5] = ERASE_DATA5; - - /* Start erase on unprotected sectors */ - for (sect = s_first; sect<=s_last; sect++) { - if (info->protect[sect] == 0) { /* not protected */ -#ifdef CONFIG_MVS_16BIT_FLASH - addr = (vu_short *)(info->start[sect]); -#else - addr = (vu_long *)(info->start[sect]); -#endif - addr[0] = ERASE_SECTOR_DATA; - 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; -#ifdef CONFIG_MVS_16BIT_FLASH - addr = (vu_short *)(info->start[l_sect]); -#else - addr = (vu_long *)(info->start[l_sect]); -#endif - while ((addr[0] & ERASE_CONFIRM_DATA) != ERASE_CONFIRM_DATA) { - 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 */ - putc ('.'); - last = now; - } - } - -DONE: - /* reset to read mode */ -#ifdef CONFIG_MVS_16BIT_FLASH - addr = (vu_short *)info->start[0]; -#else - addr = (vu_long *)info->start[0]; -#endif - addr[0] = RESET_BANK_DATA; /* reset bank */ - - printf (" done\n"); - return 0; -} - - -/*----------------------------------------------------------------------- - * Copy memory to flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ - -int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt) -{ -#define BUFF_INC 4 - ulong cp, wp, data; - int i, l, rc; - - mvdebug (("+write_buff %p ==> 0x%08lx, count = 0x%08lx\n", src, addr, cnt)); - - wp = (addr & ~3); /* get lower word aligned address */ - /* - * handle unaligned start bytes - */ - if ((l = addr - wp) != 0) { - mvdebug ((" handle unaligned start bytes (cnt = 0x%08%lx)\n", cnt)); - data = 0; - for (i=0, cp=wp; i<l; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - for (; i<BUFF_INC && cnt>0; ++i) { - data = (data << 8) | *src++; - --cnt; - ++cp; - } - for (; cnt==0 && i<BUFF_INC; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += BUFF_INC; - } - - /* - * handle (half)word aligned part - */ - mvdebug ((" handle word aligned part (cnt = 0x%08%lx)\n", cnt)); - while (cnt >= BUFF_INC) { - data = 0; - for (i=0; i<BUFF_INC; ++i) { - data = (data << 8) | *src++; - } - if ((rc = write_word(info, wp, data)) != 0) { - return (rc); - } - wp += BUFF_INC; - cnt -= BUFF_INC; - } - - if (cnt == 0) { - return (0); - } - - /* - * handle unaligned tail bytes - */ - mvdebug ((" handle unaligned tail bytes (cnt = 0x%08%lx)\n", cnt)); - data = 0; - for (i=0, cp=wp; i<BUFF_INC && cnt>0; ++i, ++cp) { - data = (data << 8) | *src++; - --cnt; - } - for (; i<BUFF_INC; ++i, ++cp) { - data = (data << 8) | (*(uchar *)cp); - } - - return (write_word(info, wp, data)); -} - -#define WRITE_ADDR1 0x0555 -#define WRITE_ADDR2 0x02AA -#define WRITE_ADDR3 WRITE_ADDR1 - -#define WRITE_DATA1 (0x00AA00AA & FLASH_DATA_MASK) -#define WRITE_DATA2 (0x00550055 & FLASH_DATA_MASK) -#define WRITE_DATA3 (0x00A000A0 & FLASH_DATA_MASK) - -#define WRITE_CONFIRM_DATA ERASE_CONFIRM_DATA - -#ifndef CONFIG_MVS_16BIT_FLASH -/*----------------------------------------------------------------------- - * 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) -{ - vu_long *addr = (vu_long *)(info->start[0]); - ulong start; - int flag; - - mvdebug (("+write_word (to 0x%08lx)\n", dest)); - /* 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(); - - addr[WRITE_ADDR1] = WRITE_DATA1; - addr[WRITE_ADDR2] = WRITE_DATA2; - addr[WRITE_ADDR3] = WRITE_DATA3; - - *((vu_long *)dest) = data; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - addr = (vu_long *)dest; - while ((*addr & WRITE_CONFIRM_DATA) != (data & WRITE_CONFIRM_DATA)) { - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - return (1); - } - } - - mvdebug (("-write_word\n")); - return (0); -} -#else /* CONFIG_MVS_16BIT_FLASH */ -/*----------------------------------------------------------------------- - * Write a halfword to Flash, returns: - * 0 - OK - * 1 - write timeout - * 2 - Flash not erased - */ -static int write_halfword (flash_info_t *info, ulong dest, ushort data) -{ - vu_short *addr = (vu_short *)(info->start[0]); - ulong start; - int flag; - - mvdebug (("+write_halfword (to 0x%08lx)\n", dest)); - /* 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(); - - addr[WRITE_ADDR1] = WRITE_DATA1; - addr[WRITE_ADDR2] = WRITE_DATA2; - addr[WRITE_ADDR3] = WRITE_DATA3; - - *((vu_short *)dest) = data; - - /* re-enable interrupts if necessary */ - if (flag) - enable_interrupts(); - - /* data polling for D7 */ - start = get_timer (0); - addr = (vu_short *)dest; - while ((*addr & WRITE_CONFIRM_DATA) != (data & WRITE_CONFIRM_DATA)) { - if (get_timer(start) > CFG_FLASH_WRITE_TOUT) { - return (1); - } - } - mvdebug (("-write_halfword\n")); - return (0); -} - - -/*----------------------------------------------------------------------- - * 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) -{ - int result = 0; - - if (write_halfword (info, dest, (data & ~FLASH_DATA_MASK) >> 16) == 0) - { - dest += 2; - data = data & FLASH_DATA_MASK; - result = write_halfword (info, dest, data); - } - return result; -} -#endif -/*----------------------------------------------------------------------- - */ |