#define FLASH_OFFSET_USER_PROTECTION 0x85
#define FLASH_OFFSET_INTEL_PROTECTION 0x81
-
#define FLASH_MAN_CFI 0x01000000
-
-
-
typedef union {
- unsigned char c;
- unsigned short w;
- unsigned long l;
+ unsigned char c;
+ unsigned short w;
+ unsigned long l;
} cfiword_t;
typedef union {
- unsigned char * cp;
- unsigned short *wp;
- unsigned long *lp;
+ unsigned char *cp;
+ unsigned short *wp;
+ unsigned long *lp;
} cfiptr_t;
#define NUM_ERASE_REGIONS 4
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
-
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
/*-----------------------------------------------------------------------
* Functions
*/
-
-
-static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c);
-static void flash_make_cmd(flash_info_t * info, uchar cmd, void * cmdbuf);
-static void flash_write_cmd(flash_info_t * info, int sect, uchar offset, uchar cmd);
-static int flash_isequal(flash_info_t * info, int sect, uchar offset, uchar cmd);
-static int flash_isset(flash_info_t * info, int sect, uchar offset, uchar cmd);
-static int flash_detect_cfi(flash_info_t * info);
+static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c);
+static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf);
+static void flash_write_cmd (flash_info_t * info, int sect, uchar offset,
+ uchar cmd);
+static int flash_isequal (flash_info_t * info, int sect, uchar offset,
+ uchar cmd);
+static int flash_isset (flash_info_t * info, int sect, uchar offset,
+ uchar cmd);
+static int flash_detect_cfi (flash_info_t * info);
static ulong flash_get_size (ulong base, int banknum);
-static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword);
-static int flash_full_status_check(flash_info_t * info, ulong sector, ulong tout, char * prompt);
-#ifdef CFG_FLASH_USE_BUFFER_WRITE
-static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, int len);
+static int flash_write_cfiword (flash_info_t * info, ulong dest,
+ cfiword_t cword);
+static int flash_full_status_check (flash_info_t * info, ulong sector,
+ ulong tout, char *prompt);
+#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
+ int len);
#endif
/*-----------------------------------------------------------------------
* create an address based on the offset and the port width
*/
-uchar * flash_make_addr(flash_info_t * info, int sect, int offset)
+uchar *flash_make_addr (flash_info_t * info, int sect, int offset)
{
- return ((uchar *)(info->start[sect] + (offset * info->chipwidth)));
+ return ((uchar *) (info->start[sect] + (offset * info->chipwidth)));
}
+
/*-----------------------------------------------------------------------
* read a character at a port width address
*/
-uchar flash_read_uchar(flash_info_t * info, uchar offset)
+uchar flash_read_uchar (flash_info_t * info, uchar offset)
{
- if (info->portwidth == FLASH_CFI_8BIT) {
- volatile uchar *cp;
- uchar c;
- cp = flash_make_addr(info, 0, offset);
- c = *cp;
+ if (info->portwidth == FLASH_CFI_8BIT) {
+ volatile uchar *cp;
+ uchar c;
+
+ cp = flash_make_addr (info, 0, offset);
+ c = *cp;
#ifdef DEBUG_FLASH
- printf("flash_read_uchar offset=%04x ptr=%08x c=%02x\n",
- offset, (unsigned int)cp, c);
+ printf ("flash_read_uchar offset=%04x ptr=%08x c=%02x\n",
+ offset, (unsigned int) cp, c);
#endif
- return (c);
-
- } else if (info->portwidth == FLASH_CFI_16BIT) {
- volatile ushort *sp;
- ushort s;
- uchar c;
- sp = (ushort*)flash_make_addr(info, 0, offset);
- s = *sp;
- c = (uchar)s;
+ return (c);
+
+ } else if (info->portwidth == FLASH_CFI_16BIT) {
+ volatile ushort *sp;
+ ushort s;
+ uchar c;
+
+ sp = (ushort *) flash_make_addr (info, 0, offset);
+ s = *sp;
+ c = (uchar) s;
#ifdef DEBUG_FLASH
- printf("flash_read_uchar offset=%04x ptr=%08x s=%04x c=%02x\n",
- offset, (unsigned int)sp, s, c);
+ printf ("flash_read_uchar offset=%04x ptr=%08x s=%04x c=%02x\n", offset, (unsigned int) sp, s, c);
#endif
- return (c);
+ return (c);
- }
+ }
- return 0;
+ return 0;
}
/*-----------------------------------------------------------------------
* read a short word by swapping for ppc format.
*/
-ushort flash_read_ushort(flash_info_t * info, int sect, uchar offset)
+ushort flash_read_ushort (flash_info_t * info, int sect, uchar offset)
{
- if (info->portwidth == FLASH_CFI_8BIT) {
- volatile uchar *cp;
- uchar c0, c1;
- ushort s;
- cp = flash_make_addr(info, 0, offset);
- c1 = cp[2];
- c0 = cp[0];
- s = c1<<8 | c0;
+ if (info->portwidth == FLASH_CFI_8BIT) {
+ volatile uchar *cp;
+ uchar c0, c1;
+ ushort s;
+
+ cp = flash_make_addr (info, 0, offset);
+ c1 = cp[2];
+ c0 = cp[0];
+ s = c1 << 8 | c0;
#ifdef DEBUG_FLASH
- printf("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n",
- offset, (unsigned int)cp, c1, c0, s);
+ printf ("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n", offset, (unsigned int) cp, c1, c0, s);
#endif
- return (s);
-
- } else if (info->portwidth == FLASH_CFI_16BIT) {
- volatile ushort *sp;
- ushort s;
- uchar c0, c1;
- sp = (ushort*)flash_make_addr(info, 0, offset);
- s = *sp;
- c1 = (uchar)sp[1];
- c0 = (uchar)sp[0];
- s = c1<<8 | c0;
+ return (s);
+
+ } else if (info->portwidth == FLASH_CFI_16BIT) {
+ volatile ushort *sp;
+ ushort s;
+ uchar c0, c1;
+
+ sp = (ushort *) flash_make_addr (info, 0, offset);
+ s = *sp;
+ c1 = (uchar) sp[1];
+ c0 = (uchar) sp[0];
+ s = c1 << 8 | c0;
#ifdef DEBUG_FLASH
- printf("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n",
- offset, (unsigned int)sp, c1, c0, s);
+ printf ("flash_read_ushort offset=%04x ptr=%08x c1=%02x c0=%02x s=%04x\n", offset, (unsigned int) sp, c1, c0, s);
#endif
- return (s);
+ return (s);
- }
+ }
- return 0;
+ return 0;
}
/*-----------------------------------------------------------------------
* read a long word by picking the least significant byte of each maiximum
* port size word. Swap for ppc format.
*/
-ulong flash_read_long(flash_info_t * info, int sect, uchar offset)
+ulong flash_read_long (flash_info_t * info, int sect, uchar offset)
{
- if (info->portwidth == FLASH_CFI_8BIT) {
- volatile uchar *cp;
- uchar c0, c1, c2, c3;
- ulong l;
- cp = flash_make_addr(info, 0, offset);
- c3 = cp[6];
- c2 = cp[4];
- c1 = cp[2];
- c0 = cp[0];
- l = c3<<24 | c2<<16 | c1<<8 | c0;
+ if (info->portwidth == FLASH_CFI_8BIT) {
+ volatile uchar *cp;
+ uchar c0, c1, c2, c3;
+ ulong l;
+
+ cp = flash_make_addr (info, 0, offset);
+ c3 = cp[6];
+ c2 = cp[4];
+ c1 = cp[2];
+ c0 = cp[0];
+ l = c3 << 24 | c2 << 16 | c1 << 8 | c0;
#ifdef DEBUG_FLASH
- printf("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n",
- offset, (unsigned int)cp, c3, c2, c1, c0, l);
+ printf ("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n", offset, (unsigned int) cp, c3, c2, c1, c0, l);
#endif
- return (l);
-
- } else if (info->portwidth == FLASH_CFI_16BIT) {
- volatile ushort *sp;
- uchar c0, c1, c2, c3;
- ulong l;
- sp = (ushort*)flash_make_addr(info, 0, offset);
- c3 = (uchar)sp[3];
- c2 = (uchar)sp[2];
- c1 = (uchar)sp[1];
- c0 = (uchar)sp[0];
- l = c3<<24 | c2<<16 | c1<<8 | c0;
+ return (l);
+
+ } else if (info->portwidth == FLASH_CFI_16BIT) {
+ volatile ushort *sp;
+ uchar c0, c1, c2, c3;
+ ulong l;
+
+ sp = (ushort *) flash_make_addr (info, 0, offset);
+ c3 = (uchar) sp[3];
+ c2 = (uchar) sp[2];
+ c1 = (uchar) sp[1];
+ c0 = (uchar) sp[0];
+ l = c3 << 24 | c2 << 16 | c1 << 8 | c0;
#ifdef DEBUG_FLASH
- printf("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n",
- offset, (unsigned int)sp, c3, c2, c1, c0, l);
+ printf ("flash_read_long offset=%04x ptr=%08x c3=%02x c2=%02x c1=%02x c0=%02x l=%08x\n", offset, (unsigned int) sp, c3, c2, c1, c0, l);
#endif
- return (l);
+ return (l);
- }
+ }
- return 0;
+ return 0;
}
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
- unsigned long size;
-
- size = 0;
-
- flash_info[0].flash_id = FLASH_UNKNOWN;
- flash_info[0].portwidth = FLASH_CFI_16BIT;
- flash_info[0].chipwidth = FLASH_CFI_16BIT;
- size += flash_info[0].size = flash_get_size(CFG_PROGFLASH_BASE, 0);
- if (flash_info[0].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 1,
- flash_info[0].size, flash_info[0].size<<20);
- };
-
- flash_info[1].flash_id = FLASH_UNKNOWN;
- flash_info[1].portwidth = FLASH_CFI_8BIT;
- flash_info[1].chipwidth = FLASH_CFI_16BIT;
- size += flash_info[1].size = flash_get_size(CFG_CONFFLASH_BASE, 1);
- if (flash_info[1].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 2,
- flash_info[1].size, flash_info[1].size<<20);
- };
-
- return (size);
+ unsigned long size;
+
+ size = 0;
+
+ flash_info[0].flash_id = FLASH_UNKNOWN;
+ flash_info[0].portwidth = FLASH_CFI_16BIT;
+ flash_info[0].chipwidth = FLASH_CFI_16BIT;
+ size += flash_info[0].size = flash_get_size (CONFIG_SYS_PROGFLASH_BASE, 0);
+ if (flash_info[0].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 1, flash_info[0].size, flash_info[0].size << 20);
+ };
+
+ flash_info[1].flash_id = FLASH_UNKNOWN;
+ flash_info[1].portwidth = FLASH_CFI_8BIT;
+ flash_info[1].chipwidth = FLASH_CFI_16BIT;
+ size += flash_info[1].size = flash_get_size (CONFIG_SYS_CONFFLASH_BASE, 1);
+ if (flash_info[1].flash_id == FLASH_UNKNOWN) {
+ printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", 2, flash_info[1].size, flash_info[1].size << 20);
+ };
+
+ return (size);
}
/*-----------------------------------------------------------------------
*/
-int flash_erase (flash_info_t *info, int s_first, int s_last)
+int flash_erase (flash_info_t * info, int s_first, int s_last)
{
- int rcode = 0;
- int prot;
- int sect;
-
- if( info->flash_id != FLASH_MAN_CFI) {
- printf ("Can't erase unknown flash type - aborted\n");
- return 1;
- }
- if ((s_first < 0) || (s_first > s_last)) {
- printf ("- no sectors to erase\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");
- }
-
-
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- flash_write_cmd(info, sect, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd(info, sect, 0, FLASH_CMD_BLOCK_ERASE);
- flash_write_cmd(info, sect, 0, FLASH_CMD_ERASE_CONFIRM);
-
- if(flash_full_status_check(info, sect, info->erase_blk_tout, "erase")) {
- rcode = 1;
- } else
- printf(".");
- }
- }
- printf (" done\n");
- return rcode;
+ int rcode = 0;
+ int prot;
+ int sect;
+
+ if (info->flash_id != FLASH_MAN_CFI) {
+ printf ("Can't erase unknown flash type - aborted\n");
+ return 1;
+ }
+ if ((s_first < 0) || (s_first > s_last)) {
+ printf ("- no sectors to erase\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");
+ }
+
+ for (sect = s_first; sect <= s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ flash_write_cmd (info, sect, 0,
+ FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, sect, 0,
+ FLASH_CMD_BLOCK_ERASE);
+ flash_write_cmd (info, sect, 0,
+ FLASH_CMD_ERASE_CONFIRM);
+
+ if (flash_full_status_check
+ (info, sect, info->erase_blk_tout, "erase")) {
+ rcode = 1;
+ } else
+ printf (".");
+ }
+ }
+ printf (" done\n");
+ return rcode;
}
/*-----------------------------------------------------------------------
*/
-void flash_print_info (flash_info_t *info)
+void flash_print_info (flash_info_t * info)
{
- int i;
-
- if (info->flash_id != FLASH_MAN_CFI) {
- printf ("missing or unknown FLASH type\n");
- return;
- }
-
- printf("CFI conformant FLASH (x%d device in x%d mode)",
- (info->chipwidth << 3 ), (info->portwidth << 3 ));
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
- printf(" Erase timeout %ld ms, write timeout %ld ms, buffer write timeout %ld ms, buffer size %d\n",
- info->erase_blk_tout, info->write_tout, info->buffer_write_tout, info->buffer_size);
-
- printf (" Sector Start Addresses:");
- for (i=0; i<info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n");
- printf (" %08lX%5s",
- info->start[i],
- info->protect[i] ? " (RO)" : " "
- );
- }
- printf ("\n");
- return;
+ int i;
+
+ if (info->flash_id != FLASH_MAN_CFI) {
+ printf ("missing or unknown FLASH type\n");
+ return;
+ }
+
+ printf ("CFI conformant FLASH (x%d device in x%d mode)",
+ (info->chipwidth << 3), (info->portwidth << 3));
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+ printf (" Erase timeout %ld ms, write timeout %ld ms, buffer write timeout %ld ms, buffer size %d\n", info->erase_blk_tout, info->write_tout, info->buffer_write_tout, info->buffer_size);
+
+ printf (" Sector Start Addresses:");
+ for (i = 0; i < info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n");
+ printf (" %08lX%5s",
+ info->start[i], info->protect[i] ? " (RO)" : " ");
+ }
+ printf ("\n");
+ return;
}
/*-----------------------------------------------------------------------
* 1 - write timeout
* 2 - Flash not erased
*/
-int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
- ulong wp;
- ulong cp;
- int aln;
- cfiword_t cword;
- int i, rc;
-
- /* get lower aligned address */
- wp = (addr & ~(info->portwidth - 1));
-
- /* handle unaligned start */
- if((aln = addr - wp) != 0) {
- cword.l = 0;
- cp = wp;
- for(i=0;i<aln; ++i, ++cp)
- flash_add_byte(info, &cword, (*(uchar *)cp));
-
- for(; (i< info->portwidth) && (cnt > 0) ; i++) {
- flash_add_byte(info, &cword, *src++);
- cnt--;
- cp++;
- }
- for(; (cnt == 0) && (i < info->portwidth); ++i, ++cp)
- flash_add_byte(info, &cword, (*(uchar *)cp));
- if((rc = flash_write_cfiword(info, wp, cword)) != 0)
- return rc;
- wp = cp;
- }
-
-#ifdef CFG_FLASH_USE_BUFFER_WRITE
- while(cnt >= info->portwidth) {
- i = info->buffer_size > cnt? cnt: info->buffer_size;
- if((rc = flash_write_cfibuffer(info, wp, src,i)) != ERR_OK)
- return rc;
- wp += i;
- src += i;
- cnt -=i;
- }
+ ulong wp;
+ ulong cp;
+ int aln;
+ cfiword_t cword;
+ int i, rc;
+
+ /* get lower aligned address */
+ wp = (addr & ~(info->portwidth - 1));
+
+ /* handle unaligned start */
+ if ((aln = addr - wp) != 0) {
+ cword.l = 0;
+ cp = wp;
+ for (i = 0; i < aln; ++i, ++cp)
+ flash_add_byte (info, &cword, (*(uchar *) cp));
+
+ for (; (i < info->portwidth) && (cnt > 0); i++) {
+ flash_add_byte (info, &cword, *src++);
+ cnt--;
+ cp++;
+ }
+ for (; (cnt == 0) && (i < info->portwidth); ++i, ++cp)
+ flash_add_byte (info, &cword, (*(uchar *) cp));
+ if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
+ return rc;
+ wp = cp;
+ }
+#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
+ while (cnt >= info->portwidth) {
+ i = info->buffer_size > cnt ? cnt : info->buffer_size;
+ if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
+ return rc;
+ wp += i;
+ src += i;
+ cnt -= i;
+ }
#else
- /* handle the aligned part */
- while(cnt >= info->portwidth) {
- cword.l = 0;
- for(i = 0; i < info->portwidth; i++) {
- flash_add_byte(info, &cword, *src++);
- }
- if((rc = flash_write_cfiword(info, wp, cword)) != 0)
- return rc;
- wp += info->portwidth;
- cnt -= info->portwidth;
- }
-#endif /* CFG_FLASH_USE_BUFFER_WRITE */
- if (cnt == 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- cword.l = 0;
- for (i=0, cp=wp; (i<info->portwidth) && (cnt>0); ++i, ++cp) {
- flash_add_byte(info, &cword, *src++);
- --cnt;
- }
- for (; i<info->portwidth; ++i, ++cp) {
- flash_add_byte(info, & cword, (*(uchar *)cp));
- }
-
- return flash_write_cfiword(info, wp, cword);
+ /* handle the aligned part */
+ while (cnt >= info->portwidth) {
+ cword.l = 0;
+ for (i = 0; i < info->portwidth; i++) {
+ flash_add_byte (info, &cword, *src++);
+ }
+ if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
+ return rc;
+ wp += info->portwidth;
+ cnt -= info->portwidth;
+ }
+#endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */
+ if (cnt == 0) {
+ return (0);
+ }
+
+ /*
+ * handle unaligned tail bytes
+ */
+ cword.l = 0;
+ for (i = 0, cp = wp; (i < info->portwidth) && (cnt > 0); ++i, ++cp) {
+ flash_add_byte (info, &cword, *src++);
+ --cnt;
+ }
+ for (; i < info->portwidth; ++i, ++cp) {
+ flash_add_byte (info, &cword, (*(uchar *) cp));
+ }
+
+ return flash_write_cfiword (info, wp, cword);
}
/*-----------------------------------------------------------------------
*/
-int flash_real_protect(flash_info_t *info, long sector, int prot)
+int flash_real_protect (flash_info_t * info, long sector, int prot)
{
- int retcode = 0;
-
- flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT);
- if(prot)
- flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT_SET);
- else
- flash_write_cmd(info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
-
- if((retcode = flash_full_status_check(info, sector, info->erase_blk_tout,
- prot?"protect":"unprotect")) == 0) {
-
- info->protect[sector] = prot;
- /* Intel's unprotect unprotects all locking */
- if(prot == 0) {
- int i;
- for(i = 0 ; i<info->sector_count; i++) {
- if(info->protect[i])
- flash_real_protect(info, i, 1);
- }
- }
- }
-
- return retcode;
+ int retcode = 0;
+
+ flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT);
+ if (prot)
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_SET);
+ else
+ flash_write_cmd (info, sector, 0, FLASH_CMD_PROTECT_CLEAR);
+
+ if ((retcode =
+ flash_full_status_check (info, sector, info->erase_blk_tout,
+ prot ? "protect" : "unprotect")) == 0) {
+
+ info->protect[sector] = prot;
+ /* Intel's unprotect unprotects all locking */
+ if (prot == 0) {
+ int i;
+
+ for (i = 0; i < info->sector_count; i++) {
+ if (info->protect[i])
+ flash_real_protect (info, i, 1);
+ }
+ }
+ }
+
+ return retcode;
}
+
/*-----------------------------------------------------------------------
* wait for XSR.7 to be set. Time out with an error if it does not.
* This routine does not set the flash to read-array mode.
*/
-static int flash_status_check(flash_info_t * info, ulong sector, ulong tout, char * prompt)
+static int flash_status_check (flash_info_t * info, ulong sector, ulong tout,
+ char *prompt)
{
- ulong start;
-
- /* Wait for command completion */
- start = get_timer (0);
- while(!flash_isset(info, sector, 0, FLASH_STATUS_DONE)) {
- if (get_timer(start) > info->erase_blk_tout) {
- printf("Flash %s timeout at address %lx\n", prompt, info->start[sector]);
- flash_write_cmd(info, sector, 0, FLASH_CMD_RESET);
- return ERR_TIMOUT;
- }
- }
- return ERR_OK;
+ ulong start;
+
+ /* Wait for command completion */
+ start = get_timer (0);
+ while (!flash_isset (info, sector, 0, FLASH_STATUS_DONE)) {
+ if (get_timer (start) > info->erase_blk_tout) {
+ printf ("Flash %s timeout at address %lx\n", prompt,
+ info->start[sector]);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_RESET);
+ return ERR_TIMOUT;
+ }
+ }
+ return ERR_OK;
}
+
/*-----------------------------------------------------------------------
* Wait for XSR.7 to be set, if it times out print an error, otherwise do a full status check.
* This routine sets the flash to read-array mode.
*/
-static int flash_full_status_check(flash_info_t * info, ulong sector, ulong tout, char * prompt)
+static int flash_full_status_check (flash_info_t * info, ulong sector,
+ ulong tout, char *prompt)
{
- int retcode;
- retcode = flash_status_check(info, sector, tout, prompt);
- if((retcode == ERR_OK) && !flash_isequal(info,sector, 0, FLASH_STATUS_DONE)) {
- retcode = ERR_INVAL;
- printf("Flash %s error at address %lx\n", prompt,info->start[sector]);
- if(flash_isset(info, sector, 0, FLASH_STATUS_ECLBS | FLASH_STATUS_PSLBS)){
- printf("Command Sequence Error.\n");
- } else if(flash_isset(info, sector, 0, FLASH_STATUS_ECLBS)){
- printf("Block Erase Error.\n");
- retcode = ERR_NOT_ERASED;
- } else if (flash_isset(info, sector, 0, FLASH_STATUS_PSLBS)) {
- printf("Locking Error\n");
- }
- if(flash_isset(info, sector, 0, FLASH_STATUS_DPS)){
- printf("Block locked.\n");
- retcode = ERR_PROTECTED;
- }
- if(flash_isset(info, sector, 0, FLASH_STATUS_VPENS))
- printf("Vpp Low Error.\n");
- }
- flash_write_cmd(info, sector, 0, FLASH_CMD_RESET);
- return retcode;
+ int retcode;
+
+ retcode = flash_status_check (info, sector, tout, prompt);
+ if ((retcode == ERR_OK)
+ && !flash_isequal (info, sector, 0, FLASH_STATUS_DONE)) {
+ retcode = ERR_INVAL;
+ printf ("Flash %s error at address %lx\n", prompt,
+ info->start[sector]);
+ if (flash_isset
+ (info, sector, 0,
+ FLASH_STATUS_ECLBS | FLASH_STATUS_PSLBS)) {
+ printf ("Command Sequence Error.\n");
+ } else if (flash_isset (info, sector, 0, FLASH_STATUS_ECLBS)) {
+ printf ("Block Erase Error.\n");
+ retcode = ERR_NOT_ERASED;
+ } else if (flash_isset (info, sector, 0, FLASH_STATUS_PSLBS)) {
+ printf ("Locking Error\n");
+ }
+ if (flash_isset (info, sector, 0, FLASH_STATUS_DPS)) {
+ printf ("Block locked.\n");
+ retcode = ERR_PROTECTED;
+ }
+ if (flash_isset (info, sector, 0, FLASH_STATUS_VPENS))
+ printf ("Vpp Low Error.\n");
+ }
+ flash_write_cmd (info, sector, 0, FLASH_CMD_RESET);
+ return retcode;
}
+
/*-----------------------------------------------------------------------
*/
-static void flash_add_byte(flash_info_t *info, cfiword_t * cword, uchar c)
+static void flash_add_byte (flash_info_t * info, cfiword_t * cword, uchar c)
{
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- cword->c = c;
- break;
- case FLASH_CFI_16BIT:
- cword->w = (cword->w << 8) | c;
- break;
- case FLASH_CFI_32BIT:
- cword->l = (cword->l << 8) | c;
- }
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ cword->c = c;
+ break;
+ case FLASH_CFI_16BIT:
+ cword->w = (cword->w << 8) | c;
+ break;
+ case FLASH_CFI_32BIT:
+ cword->l = (cword->l << 8) | c;
+ }
}
-
/*-----------------------------------------------------------------------
* make a proper sized command based on the port and chip widths
*/
-static void flash_make_cmd(flash_info_t * info, uchar cmd, void * cmdbuf)
+static void flash_make_cmd (flash_info_t * info, uchar cmd, void *cmdbuf)
{
- //int i;
- uchar *cp = (uchar *)cmdbuf;
- // for(i=0; i< info->portwidth; i++)
- // *cp++ = ((i+1) % info->chipwidth) ? '\0':cmd;
- if (info->portwidth == FLASH_CFI_8BIT && info->chipwidth == FLASH_CFI_16BIT) {
- cp[0] = cmd;
- } else if (info->portwidth == FLASH_CFI_16BIT && info->chipwidth == FLASH_CFI_16BIT) {
- cp[0] = '\0';
- cp[1] = cmd;
- };
+ /*int i; */
+ uchar *cp = (uchar *) cmdbuf;
+
+ /* for(i=0; i< info->portwidth; i++) */
+ /* *cp++ = ((i+1) % info->chipwidth) ? '\0':cmd; */
+ if (info->portwidth == FLASH_CFI_8BIT
+ && info->chipwidth == FLASH_CFI_16BIT) {
+ cp[0] = cmd;
+ } else if (info->portwidth == FLASH_CFI_16BIT
+ && info->chipwidth == FLASH_CFI_16BIT) {
+ cp[0] = '\0';
+ cp[1] = cmd;
+ };
}
/*
* Write a proper sized command to the correct address
*/
-static void flash_write_cmd(flash_info_t * info, int sect, uchar offset, uchar cmd)
+static void flash_write_cmd (flash_info_t * info, int sect, uchar offset,
+ uchar cmd)
{
- volatile cfiptr_t addr;
- cfiword_t cword;
- addr.cp = flash_make_addr(info, sect, offset);
- flash_make_cmd(info, cmd, &cword);
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- *addr.cp = cword.c;
- break;
- case FLASH_CFI_16BIT:
- *addr.wp = cword.w;
- break;
- case FLASH_CFI_32BIT:
- *addr.lp = cword.l;
- break;
- }
+ volatile cfiptr_t addr;
+ cfiword_t cword;
+
+ addr.cp = flash_make_addr (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ *addr.cp = cword.c;
+ break;
+ case FLASH_CFI_16BIT:
+ *addr.wp = cword.w;
+ break;
+ case FLASH_CFI_32BIT:
+ *addr.lp = cword.l;
+ break;
+ }
}
/*-----------------------------------------------------------------------
*/
-static int flash_isequal(flash_info_t * info, int sect, uchar offset, uchar cmd)
+static int flash_isequal (flash_info_t * info, int sect, uchar offset,
+ uchar cmd)
{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
- cptr.cp = flash_make_addr(info, sect, offset);
- flash_make_cmd(info, cmd, &cword);
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- retval = (cptr.cp[0] == cword.c);
- break;
- case FLASH_CFI_16BIT:
- retval = (cptr.wp[0] == cword.w);
- break;
- case FLASH_CFI_32BIT:
- retval = (cptr.lp[0] == cword.l);
- break;
- default:
- retval = 0;
- break;
- }
- return retval;
+ cfiptr_t cptr;
+ cfiword_t cword;
+ int retval;
+
+ cptr.cp = flash_make_addr (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ retval = (cptr.cp[0] == cword.c);
+ break;
+ case FLASH_CFI_16BIT:
+ retval = (cptr.wp[0] == cword.w);
+ break;
+ case FLASH_CFI_32BIT:
+ retval = (cptr.lp[0] == cword.l);
+ break;
+ default:
+ retval = 0;
+ break;
+ }
+ return retval;
}
+
/*-----------------------------------------------------------------------
*/
-static int flash_isset(flash_info_t * info, int sect, uchar offset, uchar cmd)
+static int flash_isset (flash_info_t * info, int sect, uchar offset,
+ uchar cmd)
{
- cfiptr_t cptr;
- cfiword_t cword;
- int retval;
- cptr.cp = flash_make_addr(info, sect, offset);
- flash_make_cmd(info, cmd, &cword);
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- retval = ((cptr.cp[0] & cword.c) == cword.c);
- break;
- case FLASH_CFI_16BIT:
- retval = ((cptr.wp[0] & cword.w) == cword.w);
- break;
- case FLASH_CFI_32BIT:
- retval = ((cptr.lp[0] & cword.l) == cword.l);
- break;
- default:
- retval = 0;
- break;
- }
- return retval;
+ cfiptr_t cptr;
+ cfiword_t cword;
+ int retval;
+
+ cptr.cp = flash_make_addr (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ retval = ((cptr.cp[0] & cword.c) == cword.c);
+ break;
+ case FLASH_CFI_16BIT:
+ retval = ((cptr.wp[0] & cword.w) == cword.w);
+ break;
+ case FLASH_CFI_32BIT:
+ retval = ((cptr.lp[0] & cword.l) == cword.l);
+ break;
+ default:
+ retval = 0;
+ break;
+ }
+ return retval;
}
/*-----------------------------------------------------------------------
* http://www.jedec.org/download/search/jesd68.pdf
*
*/
-static int flash_detect_cfi(flash_info_t * info)
+static int flash_detect_cfi (flash_info_t * info)
{
#if 0
- for(info->portwidth=FLASH_CFI_8BIT; info->portwidth <= FLASH_CFI_32BIT;
- info->portwidth <<= 1) {
- for(info->chipwidth =FLASH_CFI_BY8;
- info->chipwidth <= info->portwidth;
- info->chipwidth <<= 1) {
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
- flash_write_cmd(info, 0, FLASH_OFFSET_CFI, FLASH_CMD_CFI);
- if(flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP,'Q') &&
- flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') &&
- flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y'))
- return 1;
- }
- }
+ for (info->portwidth = FLASH_CFI_8BIT;
+ info->portwidth <= FLASH_CFI_32BIT; info->portwidth <<= 1) {
+ for (info->chipwidth = FLASH_CFI_BY8;
+ info->chipwidth <= info->portwidth;
+ info->chipwidth <<= 1) {
+ flash_write_cmd (info, 0, 0, FLASH_CMD_RESET);
+ flash_write_cmd (info, 0, FLASH_OFFSET_CFI,
+ FLASH_CMD_CFI);
+ if (flash_isequal
+ (info, 0, FLASH_OFFSET_CFI_RESP, 'Q')
+ && flash_isequal (info, 0,
+ FLASH_OFFSET_CFI_RESP + 1, 'R')
+ && flash_isequal (info, 0,
+ FLASH_OFFSET_CFI_RESP + 2, 'Y'))
+ return 1;
+ }
+ }
#endif
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
- flash_write_cmd(info, 0, FLASH_OFFSET_CFI, FLASH_CMD_CFI);
- if(flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP,'Q') &&
- flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') &&
- flash_isequal(info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
- return 1;
- } else {
- return 0;
- };
+ flash_write_cmd (info, 0, 0, FLASH_CMD_RESET);
+ flash_write_cmd (info, 0, FLASH_OFFSET_CFI, FLASH_CMD_CFI);
+ if (flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP, 'Q') &&
+ flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 1, 'R') &&
+ flash_isequal (info, 0, FLASH_OFFSET_CFI_RESP + 2, 'Y')) {
+ return 1;
+ } else {
+ return 0;
+ };
}
+
/*
* The following code cannot be run from FLASH!
*
*/
static ulong flash_get_size (ulong base, int banknum)
{
- flash_info_t * info = &flash_info[banknum];
- int i, j;
- int sect_cnt;
- unsigned long sector;
- unsigned long tmp;
- int size_ratio;
- uchar num_erase_regions;
- int erase_region_size;
- int erase_region_count;
-
- info->start[0] = base;
-
- if(flash_detect_cfi(info)){
+ flash_info_t *info = &flash_info[banknum];
+ int i, j;
+ int sect_cnt;
+ unsigned long sector;
+ unsigned long tmp;
+ int size_ratio;
+ uchar num_erase_regions;
+ int erase_region_size;
+ int erase_region_count;
+
+ info->start[0] = base;
+
+ if (flash_detect_cfi (info)) {
#ifdef DEBUG_FLASH
- printf("portwidth=%d chipwidth=%d\n", info->portwidth, info->chipwidth); /* test-only */
+ printf ("portwidth=%d chipwidth=%d\n", info->portwidth, info->chipwidth); /* test-only */
#endif
- size_ratio = 1; // info->portwidth / info->chipwidth;
- num_erase_regions = flash_read_uchar(info, FLASH_OFFSET_NUM_ERASE_REGIONS);
+ size_ratio = 1; /* info->portwidth / info->chipwidth; */
+ num_erase_regions =
+ flash_read_uchar (info,
+ FLASH_OFFSET_NUM_ERASE_REGIONS);
#ifdef DEBUG_FLASH
- printf("found %d erase regions\n", num_erase_regions);
+ printf ("found %d erase regions\n", num_erase_regions);
#endif
- sect_cnt = 0;
- sector = base;
- for(i = 0 ; i < num_erase_regions; i++) {
- if(i > NUM_ERASE_REGIONS) {
- printf("%d erase regions found, only %d used\n",
- num_erase_regions, NUM_ERASE_REGIONS);
- break;
- }
- tmp = flash_read_long(info, 0, FLASH_OFFSET_ERASE_REGIONS);
- erase_region_count = (tmp & 0xffff) +1;
- tmp >>= 16;
- erase_region_size = (tmp & 0xffff)? ((tmp & 0xffff) * 256): 128;
- for(j = 0; j< erase_region_count; j++) {
- info->start[sect_cnt] = sector;
- sector += (erase_region_size * size_ratio);
- info->protect[sect_cnt] = flash_isset(info, sect_cnt, FLASH_OFFSET_PROTECT, FLASH_STATUS_PROTECT);
- sect_cnt++;
- }
- }
-
- info->sector_count = sect_cnt;
- /* multiply the size by the number of chips */
- info->size = (1 << flash_read_uchar(info, FLASH_OFFSET_SIZE)) * size_ratio;
- info->buffer_size = (1 << flash_read_ushort(info, 0, FLASH_OFFSET_BUFFER_SIZE));
- tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_ETOUT);
- info->erase_blk_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_EMAX_TOUT)));
- tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_WBTOUT);
- info->buffer_write_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_WBMAX_TOUT)));
- tmp = 1 << flash_read_uchar(info, FLASH_OFFSET_WTOUT);
- info->write_tout = (tmp * (1 << flash_read_uchar(info, FLASH_OFFSET_WMAX_TOUT)))/ 1000;
- info->flash_id = FLASH_MAN_CFI;
- }
-
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
- return(info->size);
+ sect_cnt = 0;
+ sector = base;
+ for (i = 0; i < num_erase_regions; i++) {
+ if (i > NUM_ERASE_REGIONS) {
+ printf ("%d erase regions found, only %d used\n", num_erase_regions, NUM_ERASE_REGIONS);
+ break;
+ }
+ tmp = flash_read_long (info, 0,
+ FLASH_OFFSET_ERASE_REGIONS);
+ erase_region_count = (tmp & 0xffff) + 1;
+ tmp >>= 16;
+ erase_region_size =
+ (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
+ for (j = 0; j < erase_region_count; j++) {
+ info->start[sect_cnt] = sector;
+ sector += (erase_region_size * size_ratio);
+ info->protect[sect_cnt] =
+ flash_isset (info, sect_cnt,
+ FLASH_OFFSET_PROTECT,
+ FLASH_STATUS_PROTECT);
+ sect_cnt++;
+ }
+ }
+
+ info->sector_count = sect_cnt;
+ /* multiply the size by the number of chips */
+ info->size =
+ (1 << flash_read_uchar (info, FLASH_OFFSET_SIZE)) *
+ size_ratio;
+ info->buffer_size =
+ (1 <<
+ flash_read_ushort (info, 0,
+ FLASH_OFFSET_BUFFER_SIZE));
+ tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_ETOUT);
+ info->erase_blk_tout =
+ (tmp *
+ (1 <<
+ flash_read_uchar (info, FLASH_OFFSET_EMAX_TOUT)));
+ tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_WBTOUT);
+ info->buffer_write_tout =
+ (tmp *
+ (1 <<
+ flash_read_uchar (info, FLASH_OFFSET_WBMAX_TOUT)));
+ tmp = 1 << flash_read_uchar (info, FLASH_OFFSET_WTOUT);
+ info->write_tout =
+ (tmp *
+ (1 <<
+ flash_read_uchar (info,
+ FLASH_OFFSET_WMAX_TOUT))) / 1000;
+ info->flash_id = FLASH_MAN_CFI;
+ }
+
+ flash_write_cmd (info, 0, 0, FLASH_CMD_RESET);
+ return (info->size);
}
-
/*-----------------------------------------------------------------------
*/
-static int flash_write_cfiword (flash_info_t *info, ulong dest, cfiword_t cword)
+static int flash_write_cfiword (flash_info_t * info, ulong dest,
+ cfiword_t cword)
{
- cfiptr_t ctladdr;
- cfiptr_t cptr;
- int flag;
-
- ctladdr.cp = flash_make_addr(info, 0, 0);
- cptr.cp = (uchar *)dest;
-
-
- /* Check if Flash is (sufficiently) erased */
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- flag = ((cptr.cp[0] & cword.c) == cword.c);
- break;
- case FLASH_CFI_16BIT:
- flag = ((cptr.wp[0] & cword.w) == cword.w);
- break;
- case FLASH_CFI_32BIT:
- flag = ((cptr.lp[0] & cword.l) == cword.l);
- break;
- default:
- return 2;
- }
- if(!flag)
- return 2;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- flash_write_cmd(info, 0, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd(info, 0, 0, FLASH_CMD_WRITE);
-
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- cptr.cp[0] = cword.c;
- break;
- case FLASH_CFI_16BIT:
- cptr.wp[0] = cword.w;
- break;
- case FLASH_CFI_32BIT:
- cptr.lp[0] = cword.l;
- break;
- }
-
- /* re-enable interrupts if necessary */
- if(flag)
- enable_interrupts();
-
- return flash_full_status_check(info, 0, info->write_tout, "write");
+ cfiptr_t ctladdr;
+ cfiptr_t cptr;
+ int flag;
+
+ ctladdr.cp = flash_make_addr (info, 0, 0);
+ cptr.cp = (uchar *) dest;
+
+ /* Check if Flash is (sufficiently) erased */
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ flag = ((cptr.cp[0] & cword.c) == cword.c);
+ break;
+ case FLASH_CFI_16BIT:
+ flag = ((cptr.wp[0] & cword.w) == cword.w);
+ break;
+ case FLASH_CFI_32BIT:
+ flag = ((cptr.lp[0] & cword.l) == cword.l);
+ break;
+ default:
+ return 2;
+ }
+ if (!flag)
+ return 2;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts ();
+
+ flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
+
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ cptr.cp[0] = cword.c;
+ break;
+ case FLASH_CFI_16BIT:
+ cptr.wp[0] = cword.w;
+ break;
+ case FLASH_CFI_32BIT:
+ cptr.lp[0] = cword.l;
+ break;
+ }
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts ();
+
+ return flash_full_status_check (info, 0, info->write_tout, "write");
}
-#ifdef CFG_FLASH_USE_BUFFER_WRITE
+#ifdef CONFIG_SYS_FLASH_USE_BUFFER_WRITE
/* loop through the sectors from the highest address
* when the passed address is greater or equal to the sector address
* we have a match
*/
-static int find_sector(flash_info_t *info, ulong addr)
+static int find_sector (flash_info_t * info, ulong addr)
{
- int sector;
- for(sector = info->sector_count - 1; sector >= 0; sector--) {
- if(addr >= info->start[sector])
- break;
- }
- return sector;
+ int sector;
+
+ for (sector = info->sector_count - 1; sector >= 0; sector--) {
+ if (addr >= info->start[sector])
+ break;
+ }
+ return sector;
}
-static int flash_write_cfibuffer(flash_info_t * info, ulong dest, uchar * cp, int len)
+static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
+ int len)
{
- int sector;
- int cnt;
- int retcode;
- volatile cfiptr_t src;
- volatile cfiptr_t dst;
-
- src.cp = cp;
- dst.cp = (uchar *)dest;
- sector = find_sector(info, dest);
- flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd(info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER);
- if((retcode = flash_status_check(info, sector, info->buffer_write_tout,
- "write to buffer")) == ERR_OK) {
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- cnt = len;
- break;
- case FLASH_CFI_16BIT:
- cnt = len >> 1;
- break;
- case FLASH_CFI_32BIT:
- cnt = len >> 2;
- break;
- default:
- return ERR_INVAL;
- break;
- }
- flash_write_cmd(info, sector, 0, (uchar)cnt-1);
- while(cnt-- > 0) {
- switch(info->portwidth) {
- case FLASH_CFI_8BIT:
- *dst.cp++ = *src.cp++;
- break;
- case FLASH_CFI_16BIT:
- *dst.wp++ = *src.wp++;
- break;
- case FLASH_CFI_32BIT:
- *dst.lp++ = *src.lp++;
- break;
- default:
- return ERR_INVAL;
- break;
- }
- }
- flash_write_cmd(info, sector, 0, FLASH_CMD_WRITE_BUFFER_CONFIRM);
- retcode = flash_full_status_check(info, sector, info->buffer_write_tout,
- "buffer write");
- }
- flash_write_cmd(info, sector, 0, FLASH_CMD_CLEAR_STATUS);
- return retcode;
+ int sector;
+ int cnt;
+ int retcode;
+ volatile cfiptr_t src;
+ volatile cfiptr_t dst;
+
+ src.cp = cp;
+ dst.cp = (uchar *) dest;
+ sector = find_sector (info, dest);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER);
+ if ((retcode =
+ flash_status_check (info, sector, info->buffer_write_tout,
+ "write to buffer")) == ERR_OK) {
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ cnt = len;
+ break;
+ case FLASH_CFI_16BIT:
+ cnt = len >> 1;
+ break;
+ case FLASH_CFI_32BIT:
+ cnt = len >> 2;
+ break;
+ default:
+ return ERR_INVAL;
+ break;
+ }
+ flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
+ while (cnt-- > 0) {
+ switch (info->portwidth) {
+ case FLASH_CFI_8BIT:
+ *dst.cp++ = *src.cp++;
+ break;
+ case FLASH_CFI_16BIT:
+ *dst.wp++ = *src.wp++;
+ break;
+ case FLASH_CFI_32BIT:
+ *dst.lp++ = *src.lp++;
+ break;
+ default:
+ return ERR_INVAL;
+ break;
+ }
+ }
+ flash_write_cmd (info, sector, 0,
+ FLASH_CMD_WRITE_BUFFER_CONFIRM);
+ retcode =
+ flash_full_status_check (info, sector,
+ info->buffer_write_tout,
+ "buffer write");
+ }
+ flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
+ return retcode;
}
-#endif /* CFG_USE_FLASH_BUFFER_WRITE */
+#endif /* CONFIG_SYS_USE_FLASH_BUFFER_WRITE */
projects / u-boot / blobdiff