|
@@ -0,0 +1,494 @@
|
|
|
|
+/*
|
|
|
|
+ * (C) Copyright 2002
|
|
|
|
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
|
|
+ * Marius Groeger <mgroeger@sysgo.de>
|
|
|
|
+ *
|
|
|
|
+ * (C) Copyright 2002
|
|
|
|
+ * Gary Jennejohn, DENX Software Engineering, <gj@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
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+/* #define DEBUG */
|
|
|
|
+
|
|
|
|
+#include <common.h>
|
|
|
|
+#include <environment.h>
|
|
|
|
+
|
|
|
|
+#define FLASH_BANK_SIZE 0x1000000 /* 16MB (2 x 8 MB) */
|
|
|
|
+#define MAIN_SECT_SIZE 0x40000 /* 256KB (2 x 128kB) */
|
|
|
|
+
|
|
|
|
+flash_info_t flash_info[CFG_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 < CFG_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 = CFG_MAX_FLASH_SECT;
|
|
|
|
+ memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
|
|
|
|
+ if (i == 0)
|
|
|
|
+ flashbase = CFG_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,
|
|
|
|
+ CFG_FLASH_BASE,
|
|
|
|
+ CFG_FLASH_BASE + monitor_flash_len - 1,
|
|
|
|
+ &flash_info[0]);
|
|
|
|
+
|
|
|
|
+ flash_protect ( FLAG_PROTECT_SET,
|
|
|
|
+ CFG_ENV_ADDR,
|
|
|
|
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
|
|
|
|
+
|
|
|
|
+#ifdef CFG_ENV_ADDR_REDUND
|
|
|
|
+ flash_protect ( FLAG_PROTECT_SET,
|
|
|
|
+ CFG_ENV_ADDR_REDUND,
|
|
|
|
+ CFG_ENV_ADDR_REDUND + CFG_ENV_SIZE_REDUND - 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");
|
|
|
|
+ return;
|
|
|
|
+ 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");
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+/*-----------------------------------------------------------------------
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+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;
|
|
|
|
+
|
|
|
|
+#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 */
|
|
|
|
+ reset_timer();
|
|
|
|
+
|
|
|
|
+ if (info->protect[sect] == 0) { /* not protected */
|
|
|
|
+ vu_long *addr = (vu_long *) (info->start[sect]);
|
|
|
|
+ ulong bsR7, bsR7_2, bsR5, bsR5_2;
|
|
|
|
+ ulong tstart;
|
|
|
|
+
|
|
|
|
+ /* *addr = CMD_STATUS_RESET; */
|
|
|
|
+ *addr = CMD_ERASE_SETUP;
|
|
|
|
+ *addr = CMD_ERASE_CONFIRM;
|
|
|
|
+
|
|
|
|
+ /* wait until flash is ready */
|
|
|
|
+ tstart = get_timer(0);
|
|
|
|
+ do {
|
|
|
|
+ ulong now;
|
|
|
|
+ /* check timeout */
|
|
|
|
+ //if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
|
|
|
|
+ if ((now = get_timer(tstart)) > CFG_FLASH_ERASE_TOUT) {
|
|
|
|
+ printf("tstart = 0x%08lx, now = 0x%08lx\n", tstart, now);
|
|
|
|
+ *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
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+volatile 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;
|
|
|
|
+
|
|
|
|
+#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 */
|
|
|
|
+ reset_timer_masked ();
|
|
|
|
+
|
|
|
|
+ /* wait until flash is ready */
|
|
|
|
+ do {
|
|
|
|
+ /* check timeout */
|
|
|
|
+ if (get_timer_masked () > CFG_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);
|
|
|
|
+}
|