Merge branch 'master' of git://www.denx.de/git/u-boot-cfi-flash

[karo-tx-uboot.git] / drivers / mtd / cfi_flash.c

diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index d84f0fc55e23106129a066878a7ce9d428556687..d505bc8e87b2d8475941c8e908b3ec92bc1af77f 100644 (file)
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -76,7 +76,9 @@
 #define FLASH_CMD_PROTECT_SET          0x01
 #define FLASH_CMD_PROTECT_CLEAR                0xD0
 #define FLASH_CMD_CLEAR_STATUS         0x50
+#define FLASH_CMD_READ_STATUS          0x70
 #define FLASH_CMD_WRITE_TO_BUFFER      0xE8
+#define FLASH_CMD_WRITE_BUFFER_PROG    0xE9
 #define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
 
 #define FLASH_STATUS_DONE              0x80
@@ -136,6 +138,7 @@
 #define CFI_CMDSET_MITSU_STANDARD      256
 #define CFI_CMDSET_MITSU_EXTENDED      257
 #define CFI_CMDSET_SST                 258
+#define CFI_CMDSET_INTEL_PROG_REGIONS  512
 
 #ifdef CFG_FLASH_CFI_AMD_RESET /* needed for STM_ID_29W320DB on UC100 */
 # undef  FLASH_CMD_RESET
@@ -298,17 +301,25 @@ static inline void flash_unmap(flash_info_t *info, flash_sect_t sect,
 /*-----------------------------------------------------------------------
  * 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, ulong cmd, void *cmdbuf)
 {
        int i;
+       int cword_offset;
+       int cp_offset;
+       uchar val;
        uchar *cp = (uchar *) cmdbuf;
 
+       for (i = info->portwidth; i > 0; i--){
+               cword_offset = (info->portwidth-i)%info->chipwidth;
 #if defined(__LITTLE_ENDIAN) || defined(CFG_WRITE_SWAPPED_DATA)
-       for (i = info->portwidth; i > 0; i--)
+               cp_offset = info->portwidth - i;
+               val = *((uchar*)&cmd + cword_offset);
 #else
-       for (i = 1; i <= info->portwidth; i++)
+               cp_offset = i - 1;
+               val = *((uchar*)&cmd + sizeof(ulong) - cword_offset - 1);
 #endif
-               *cp++ = (i & (info->chipwidth - 1)) ? '\0' : cmd;
+               cp[cp_offset] = (cword_offset >= sizeof(ulong)) ? 0x00 : val;
+       }
 }
 
 #ifdef DEBUG
@@ -422,7 +433,7 @@ static ulong flash_read_long (flash_info_t * info, flash_sect_t sect,
  * Write a proper sized command to the correct address
  */
 static void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
-                            uint offset, uchar cmd)
+                            uint offset, ulong cmd)
 {
 
        void *addr;
@@ -605,6 +616,7 @@ static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
        int retval;
 
        switch (info->vendor) {
+       case CFI_CMDSET_INTEL_PROG_REGIONS:
        case CFI_CMDSET_INTEL_STANDARD:
        case CFI_CMDSET_INTEL_EXTENDED:
                retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
@@ -664,6 +676,7 @@ static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
 
        retcode = flash_status_check (info, sector, tout, prompt);
        switch (info->vendor) {
+       case CFI_CMDSET_INTEL_PROG_REGIONS:
        case CFI_CMDSET_INTEL_EXTENDED:
        case CFI_CMDSET_INTEL_STANDARD:
                if ((retcode == ERR_OK)
@@ -792,6 +805,7 @@ static int flash_write_cfiword (flash_info_t * info, ulong dest,
        flag = disable_interrupts ();
 
        switch (info->vendor) {
+       case CFI_CMDSET_INTEL_PROG_REGIONS:
        case CFI_CMDSET_INTEL_EXTENDED:
        case CFI_CMDSET_INTEL_STANDARD:
                flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
@@ -846,6 +860,7 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
        int flag = 0;
        uint offset = 0;
        unsigned int shift;
+       uchar write_cmd;
 
        switch (info->portwidth) {
        case FLASH_CFI_8BIT:
@@ -900,10 +915,14 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
        sector = find_sector (info, dest);
 
        switch (info->vendor) {
+       case CFI_CMDSET_INTEL_PROG_REGIONS:
        case CFI_CMDSET_INTEL_STANDARD:
        case CFI_CMDSET_INTEL_EXTENDED:
+               write_cmd = (info->vendor == CFI_CMDSET_INTEL_PROG_REGIONS) ?
+                                       FLASH_CMD_WRITE_BUFFER_PROG : FLASH_CMD_WRITE_TO_BUFFER;
                flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
-               flash_write_cmd (info, sector, 0, FLASH_CMD_WRITE_TO_BUFFER);
+               flash_write_cmd (info, sector, 0, FLASH_CMD_READ_STATUS);
+               flash_write_cmd (info, sector, 0, write_cmd);
                retcode = flash_status_check (info, sector,
                                              info->buffer_write_tout,
                                              "write to buffer");
@@ -911,7 +930,7 @@ static int flash_write_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
                        /* reduce the number of loops by the width of
                         * the port */
                        cnt = len >> shift;
-                       flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
+                       flash_write_cmd (info, sector, 0, cnt - 1);
                        while (cnt-- > 0) {
                                switch (info->portwidth) {
                                case FLASH_CFI_8BIT:
@@ -1038,6 +1057,7 @@ int flash_erase (flash_info_t * info, int s_first, int s_last)
        for (sect = s_first; sect <= s_last; sect++) {
                if (info->protect[sect] == 0) { /* not protected */
                        switch (info->vendor) {
+                       case CFI_CMDSET_INTEL_PROG_REGIONS:
                        case CFI_CMDSET_INTEL_STANDARD:
                        case CFI_CMDSET_INTEL_EXTENDED:
                                flash_write_cmd (info, sect, 0,
@@ -1106,6 +1126,9 @@ void flash_print_info (flash_info_t * info)
                        info->size >> 20, info->sector_count);
        printf ("  ");
        switch (info->vendor) {
+               case CFI_CMDSET_INTEL_PROG_REGIONS:
+                       printf ("Intel Prog Regions");
+                       break;
                case CFI_CMDSET_INTEL_STANDARD:
                        printf ("Intel Standard");
                        break;
@@ -1496,6 +1519,7 @@ static void flash_read_jedec_ids (flash_info_t * info)
        info->device_id2      = 0;
 
        switch (info->vendor) {
+       case CFI_CMDSET_INTEL_PROG_REGIONS:
        case CFI_CMDSET_INTEL_STANDARD:
        case CFI_CMDSET_INTEL_EXTENDED:
                cmdset_intel_read_jedec_ids(info);
@@ -1550,6 +1574,7 @@ static int flash_detect_legacy(ulong base, int banknum)
                }
 
                switch(info->vendor) {
+               case CFI_CMDSET_INTEL_PROG_REGIONS:
                case CFI_CMDSET_INTEL_STANDARD:
                case CFI_CMDSET_INTEL_EXTENDED:
                        info->cmd_reset = FLASH_CMD_RESET;
@@ -1747,6 +1772,7 @@ ulong flash_get_size (ulong base, int banknum)
 #endif
 
                switch (info->vendor) {
+               case CFI_CMDSET_INTEL_PROG_REGIONS:
                case CFI_CMDSET_INTEL_STANDARD:
                case CFI_CMDSET_INTEL_EXTENDED:
                        cmdset_intel_init(info, &qry);
@@ -1824,6 +1850,7 @@ ulong flash_get_size (ulong base, int banknum)
                                 * supported devices (intel...)
                                 */
                                switch (info->vendor) {
+                               case CFI_CMDSET_INTEL_PROG_REGIONS:
                                case CFI_CMDSET_INTEL_EXTENDED:
                                case CFI_CMDSET_INTEL_STANDARD:
                                        info->protect[sect_cnt] =