/*
- * (C) Copyright 2002
+ * (C) Copyright 2002-2004
* Brad Kemp, Seranoa Networks, Brad.Kemp@seranoa.com
*
* Copyright (C) 2003 Arabella Software Ltd.
* Yuli Barcohen <yuli@arabellasw.com>
* Modified to work with AMD flashes
*
+ * Copyright (C) 2004
+ * Ed Okerson
+ * Modified to work with little-endian systems.
+ *
* See file CREDITS for list of people who contributed to this
* project.
*
*
* History
* 01/20/2004 - combined variants of original driver.
+ * 01/22/2004 - Write performance enhancements for parallel chips (Tolunay)
+ * 01/23/2004 - Support for x8/x16 chips (Rune Raknerud)
+ * 01/27/2004 - Little endian support Ed Okerson
*
* Tested Architectures
- * Port Width Chip Width # of banks Flash Chip Board
- * 32 16 1 23F128J3 seranoa/eagle
- *
+ * Port Width Chip Width # of banks Flash Chip Board
+ * 32 16 1 23F128J3 seranoa/eagle
+ * 64 16 1 23F128J3 seranoa/falcon
+ *
*/
/* The DEBUG define must be before common to enable debugging */
-#undef DEBUG
+#undef DEBUG
#include <common.h>
#include <asm/processor.h>
-#ifdef CFG_FLASH_CFI_DRIVER
+#ifdef CFG_FLASH_CFI_DRIVER
/*
* This file implements a Common Flash Interface (CFI) driver for U-Boot.
* The width of the port and the width of the chips are determined at initialization.
* Verify erase and program timeouts.
*/
+#ifndef CFG_FLASH_BANKS_LIST
+#define CFG_FLASH_BANKS_LIST { CFG_FLASH_BASE }
+#endif
+
#define FLASH_CMD_CFI 0x98
#define FLASH_CMD_READ_ID 0x90
#define FLASH_CMD_RESET 0xff
#define FLASH_CMD_PROTECT_SET 0x01
#define FLASH_CMD_PROTECT_CLEAR 0xD0
#define FLASH_CMD_CLEAR_STATUS 0x50
-#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
-#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
+#define FLASH_CMD_WRITE_TO_BUFFER 0xE8
+#define FLASH_CMD_WRITE_BUFFER_CONFIRM 0xD0
#define FLASH_STATUS_DONE 0x80
#define FLASH_STATUS_ESS 0x40
#define FLASH_OFFSET_CFI 0x55
#define FLASH_OFFSET_CFI_RESP 0x10
-#define FLASH_OFFSET_PRIMARY_VENDOR 0x13
+#define FLASH_OFFSET_PRIMARY_VENDOR 0x13
#define FLASH_OFFSET_WTOUT 0x1F
-#define FLASH_OFFSET_WBTOUT 0x20
+#define FLASH_OFFSET_WBTOUT 0x20
#define FLASH_OFFSET_ETOUT 0x21
-#define FLASH_OFFSET_CETOUT 0x22
+#define FLASH_OFFSET_CETOUT 0x22
#define FLASH_OFFSET_WMAX_TOUT 0x23
-#define FLASH_OFFSET_WBMAX_TOUT 0x24
+#define FLASH_OFFSET_WBMAX_TOUT 0x24
#define FLASH_OFFSET_EMAX_TOUT 0x25
-#define FLASH_OFFSET_CEMAX_TOUT 0x26
+#define FLASH_OFFSET_CEMAX_TOUT 0x26
#define FLASH_OFFSET_SIZE 0x27
-#define FLASH_OFFSET_INTERFACE 0x28
-#define FLASH_OFFSET_BUFFER_SIZE 0x2A
+#define FLASH_OFFSET_INTERFACE 0x28
+#define FLASH_OFFSET_BUFFER_SIZE 0x2A
#define FLASH_OFFSET_NUM_ERASE_REGIONS 0x2C
#define FLASH_OFFSET_ERASE_REGIONS 0x2D
#define FLASH_OFFSET_PROTECT 0x02
-#define FLASH_OFFSET_USER_PROTECTION 0x85
-#define FLASH_OFFSET_INTEL_PROTECTION 0x81
+#define FLASH_OFFSET_USER_PROTECTION 0x85
+#define FLASH_OFFSET_INTEL_PROTECTION 0x81
#define FLASH_MAN_CFI 0x01000000
-#define CFI_CMDSET_NONE 0
+#define CFI_CMDSET_NONE 0
#define CFI_CMDSET_INTEL_EXTENDED 1
-#define CFI_CMDSET_AMD_STANDARD 2
+#define CFI_CMDSET_AMD_STANDARD 2
#define CFI_CMDSET_INTEL_STANDARD 3
-#define CFI_CMDSET_AMD_EXTENDED 4
+#define CFI_CMDSET_AMD_EXTENDED 4
#define CFI_CMDSET_MITSU_STANDARD 256
#define CFI_CMDSET_MITSU_EXTENDED 257
-#define CFI_CMDSET_SST 258
+#define CFI_CMDSET_SST 258
typedef union {
} cfiword_t;
typedef union {
- volatile unsigned char *cp;
+ volatile unsigned char *cp;
volatile unsigned short *wp;
- volatile unsigned long *lp;
+ volatile unsigned long *lp;
volatile unsigned long long *llp;
} cfiptr_t;
static ulong bank_base[CFG_MAX_FLASH_BANKS] = CFG_FLASH_BANKS_LIST;
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
/*-----------------------------------------------------------------------
* Functions
typedef unsigned long flash_sect_t;
-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, flash_sect_t sect, uint offset, uchar cmd);
-static void flash_unlock_seq(flash_info_t *info);
-static int flash_isequal(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-static int flash_isset(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd);
-static int flash_toggle(flash_info_t * info, flash_sect_t sect, uint 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, flash_sect_t sect,
+ uint offset, uchar cmd);
+static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect);
+static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint offset,
+ uchar cmd);
+static int flash_isset (flash_info_t * info, flash_sect_t sect, uint offset,
+ uchar cmd);
+static int flash_toggle (flash_info_t * info, flash_sect_t sect, uint 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, flash_sect_t sector, ulong tout, char * prompt);
+static int flash_write_cfiword (flash_info_t * info, ulong dest,
+ cfiword_t cword);
+static int flash_full_status_check (flash_info_t * info, flash_sect_t 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_cfibuffer (flash_info_t * info, ulong dest, uchar * cp,
+ int len);
#endif
+/*-----------------------------------------------------------------------
+ * create an address based on the offset and the port width
+ */
+inline uchar *flash_make_addr (flash_info_t * info, flash_sect_t sect,
+ uint offset)
+{
+ return ((uchar *) (info->start[sect] + (offset * info->portwidth)));
+}
+
#ifdef DEBUG
-void print_longlong(char * str, unsigned long long data)
+/*-----------------------------------------------------------------------
+ * Debug support
+ */
+void print_longlong (char *str, unsigned long long data)
{
int i;
char *cp;
- cp = (unsigned char *)&data;
- for(i=0;i<8; i++)
- sprintf(&str[i*2], "%2.2x", *cp++);
+
+ cp = (unsigned char *) &data;
+ for (i = 0; i < 8; i++)
+ sprintf (&str[i * 2], "%2.2x", *cp++);
}
+static void flash_printqry (flash_info_t * info, flash_sect_t sect)
+{
+ cfiptr_t cptr;
+ int x, y;
+
+ for (x = 0; x < 0x40; x += 16 / info->portwidth) {
+ cptr.cp =
+ flash_make_addr (info, sect,
+ x + FLASH_OFFSET_CFI_RESP);
+ debug ("%p : ", cptr.cp);
+ for (y = 0; y < 16; y++) {
+ debug ("%2.2x ", cptr.cp[y]);
+ }
+ debug (" ");
+ for (y = 0; y < 16; y++) {
+ if (cptr.cp[y] >= 0x20 && cptr.cp[y] <= 0x7e) {
+ debug ("%c", cptr.cp[y]);
+ } else {
+ debug (".");
+ }
+ }
+ debug ("\n");
+ }
+}
+
#endif
-/*-----------------------------------------------------------------------
- * create an address based on the offset and the port width
- */
-inline uchar * flash_make_addr(flash_info_t * info, flash_sect_t sect, uint offset)
-{
- return ((uchar *)(info->start[sect] + (offset * info->portwidth)));
-}
/*-----------------------------------------------------------------------
* read a character at a port width address
*/
-inline uchar flash_read_uchar(flash_info_t * info, uint offset)
+inline uchar flash_read_uchar (flash_info_t * info, uint offset)
{
uchar *cp;
- cp = flash_make_addr(info, 0, offset);
+
+ cp = flash_make_addr (info, 0, offset);
+#if defined(__LITTLE_ENDIAN)
+ return (cp[0]);
+#else
return (cp[info->portwidth - 1]);
+#endif
}
/*-----------------------------------------------------------------------
* read a short word by swapping for ppc format.
*/
-ushort flash_read_ushort(flash_info_t * info, flash_sect_t sect, uint offset)
+ushort flash_read_ushort (flash_info_t * info, flash_sect_t sect, uint offset)
{
- uchar * addr;
+ uchar *addr;
+ ushort retval;
- addr = flash_make_addr(info, sect, offset);
- return ((addr[(2*info->portwidth) - 1] << 8) | addr[info->portwidth - 1]);
+#ifdef DEBUG
+ int x;
+#endif
+ addr = flash_make_addr (info, sect, offset);
+
+#ifdef DEBUG
+ debug ("ushort addr is at %p info->portwidth = %d\n", addr,
+ info->portwidth);
+ for (x = 0; x < 2 * info->portwidth; x++) {
+ debug ("addr[%x] = 0x%x\n", x, addr[x]);
+ }
+#endif
+#if defined(__LITTLE_ENDIAN)
+ retval = ((addr[(info->portwidth)] << 8) | addr[0]);
+#else
+ retval = ((addr[(2 * info->portwidth) - 1] << 8) |
+ addr[info->portwidth - 1]);
+#endif
+ debug ("retval = 0x%x\n", retval);
+ return retval;
}
/*-----------------------------------------------------------------------
* 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, flash_sect_t sect, uint offset)
+ulong flash_read_long (flash_info_t * info, flash_sect_t sect, uint offset)
{
- uchar * addr;
- addr = flash_make_addr(info, sect, offset);
- return ( (addr[(2*info->portwidth) - 1] << 24 ) | (addr[(info->portwidth) -1] << 16) |
- (addr[(4*info->portwidth) - 1] << 8) | addr[(3*info->portwidth) - 1]);
+ uchar *addr;
+ ulong retval;
+
+#ifdef DEBUG
+ int x;
+#endif
+ addr = flash_make_addr (info, sect, offset);
+#ifdef DEBUG
+ debug ("long addr is at %p info->portwidth = %d\n", addr,
+ info->portwidth);
+ for (x = 0; x < 4 * info->portwidth; x++) {
+ debug ("addr[%x] = 0x%x\n", x, addr[x]);
+ }
+#endif
+#if defined(__LITTLE_ENDIAN)
+ retval = (addr[0] << 16) | (addr[(info->portwidth)] << 24) |
+ (addr[(2 * info->portwidth)]) | (addr[(3 * info->portwidth)]
+ << 8);
+#else
+ retval = (addr[(2 * info->portwidth) - 1] << 24) |
+ (addr[(info->portwidth) - 1] << 16) |
+ (addr[(4 * info->portwidth) - 1] << 8) |
+ addr[(3 * info->portwidth) - 1];
+#endif
+ return retval;
}
/*-----------------------------------------------------------------------
int i;
/* Init: no FLASHes known */
- for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
- size += flash_info[i].size = flash_get_size(bank_base[i], i);
+ size += flash_info[i].size = flash_get_size (bank_base[i], i);
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
- printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n",
- i, flash_info[i].size, flash_info[i].size << 20);
+ printf ("## Unknown FLASH on Bank %d - Size = 0x%08lx = %ld MB\n", i, flash_info[i].size, flash_info[i].size << 20);
}
}
/* Monitor protection ON by default */
#if (CFG_MONITOR_BASE >= CFG_FLASH_BASE)
- flash_protect(FLAG_PROTECT_SET,
- CFG_MONITOR_BASE,
- CFG_MONITOR_BASE + monitor_flash_len - 1,
- &flash_info[0]);
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_MONITOR_BASE,
+ CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
+ &flash_info[0]);
#endif
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;
flash_sect_t sect;
- if( info->flash_id != FLASH_MAN_CFI) {
+ if (info->flash_id != FLASH_MAN_CFI) {
printf ("Can't erase unknown flash type - aborted\n");
return 1;
}
}
prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
+ 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);
+ printf ("- Warning: %d protected sectors will not be erased!\n", prot);
} else {
printf ("\n");
}
- for (sect = s_first; sect<=s_last; sect++) {
+ for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
- switch(info->vendor) {
+ switch (info->vendor) {
case CFI_CMDSET_INTEL_STANDARD:
case CFI_CMDSET_INTEL_EXTENDED:
- 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);
+ 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);
break;
case CFI_CMDSET_AMD_STANDARD:
case CFI_CMDSET_AMD_EXTENDED:
- flash_unlock_seq(info);
- flash_write_cmd(info, sect, 0x555, AMD_CMD_ERASE_START);
- flash_unlock_seq(info);
- flash_write_cmd(info, sect, 0, AMD_CMD_ERASE_SECTOR);
+ flash_unlock_seq (info, sect);
+ flash_write_cmd (info, sect, 0x555,
+ AMD_CMD_ERASE_START);
+ flash_unlock_seq (info, sect);
+ flash_write_cmd (info, sect, 0,
+ AMD_CMD_ERASE_SECTOR);
break;
default:
- debug("Unkown flash vendor %d\n", info->vendor);
+ debug ("Unkown flash vendor %d\n",
+ info->vendor);
break;
}
- if(flash_full_status_check(info, sect, info->erase_blk_tout, "erase")) {
+ if (flash_full_status_check
+ (info, sect, info->erase_blk_tout, "erase")) {
rcode = 1;
} else
- printf(".");
+ printf (".");
}
}
printf (" done\n");
/*-----------------------------------------------------------------------
*/
-void flash_print_info (flash_info_t *info)
+void flash_print_info (flash_info_t * info)
{
int i;
return;
}
- printf("CFI conformant FLASH (%d x %d)",
- (info->portwidth << 3 ), (info->chipwidth << 3 ));
+ printf ("CFI conformant FLASH (%d x %d)",
+ (info->portwidth << 3), (info->chipwidth << 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 (" 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) {
+ for (i = 0; i < info->sector_count; ++i) {
#ifdef CFG_FLASH_EMPTY_INFO
int k;
int size;
/*
* Check if whole sector is erased
*/
- if (i != (info->sector_count-1))
- size = info->start[i+1] - info->start[i];
+ if (i != (info->sector_count - 1))
+ size = info->start[i + 1] - info->start[i];
else
- size = info->start[0] + info->size - info->start[i];
+ size = info->start[0] + info->size - info->start[i];
erased = 1;
- flash = (volatile unsigned long *)info->start[i];
- size = size >> 2; /* divide by 4 for longword access */
- for (k=0; k<size; k++)
- {
- if (*flash++ != 0xffffffff)
- {
- erased = 0;
- break;
- }
- }
+ flash = (volatile unsigned long *) info->start[i];
+ size = size >> 2; /* divide by 4 for longword access */
+ for (k = 0; k < size; k++) {
+ if (*flash++ != 0xffffffff) {
+ erased = 0;
+ break;
+ }
+ }
if ((i % 5) == 0)
printf ("\n");
if ((i % 5) == 0)
printf ("\n ");
printf (" %08lX%s",
- info->start[i],
- info->protect[i] ? " (RO)" : " ");
+ info->start[i], info->protect[i] ? " (RO)" : " ");
#endif
}
printf ("\n");
* 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;
cfiword_t cword;
int i, rc;
+#ifdef CFG_FLASH_USE_BUFFER_WRITE
+ int buffered_size;
+#endif
+ int x8mode = 0;
+
+ /* special handling of 16 bit devices in 8 bit mode */
+ if ((info->interface == FLASH_CFI_X8X16)
+ && (info->chipwidth == FLASH_CFI_BY8)) {
+ switch (info->vendor) {
+ case CFI_CMDSET_INTEL_STANDARD:
+ case CFI_CMDSET_INTEL_EXTENDED:
+ x8mode = info->portwidth;
+ info->portwidth >>= 1; /* XXX - Need to test on x9/x16 in parallel. */
+ /*info->portwidth = FLASH_CFI_8BIT; */ /* XXX - Need to test on x9/x16 in parallel. */
+ break;
+ case CFI_CMDSET_AMD_STANDARD:
+ case CFI_CMDSET_AMD_EXTENDED:
+ default:
+ break;
+ }
+ }
+ /* get lower aligned address */
/* get lower aligned address */
wp = (addr & ~(info->portwidth - 1));
/* handle unaligned start */
- if((aln = addr - wp) != 0) {
+ 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 = 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++);
+ 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)
+ 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;
}
+ /* handle the aligned part */
#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)
+ buffered_size = (info->portwidth / info->chipwidth);
+ buffered_size *= info->buffer_size;
+ while (cnt >= info->portwidth) {
+ i = buffered_size > cnt ? cnt : buffered_size;
+ if ((rc = flash_write_cfibuffer (info, wp, src, i)) != ERR_OK)
return rc;
wp += i;
src += i;
- cnt -=i;
+ cnt -= i;
}
#else
- /* handle the aligned part */
- while(cnt >= info->portwidth) {
+ while (cnt >= info->portwidth) {
cword.l = 0;
- for(i = 0; i < info->portwidth; i++) {
- flash_add_byte(info, &cword, *src++);
+ for (i = 0; i < info->portwidth; i++) {
+ flash_add_byte (info, &cword, *src++);
}
- if((rc = flash_write_cfiword(info, wp, cword)) != 0)
+ if ((rc = flash_write_cfiword (info, wp, cword)) != 0)
return rc;
wp += info->portwidth;
cnt -= info->portwidth;
* 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++);
+ 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));
+ for (; i < info->portwidth; ++i, ++cp) {
+ flash_add_byte (info, &cword, (*(uchar *) cp));
}
- return flash_write_cfiword(info, wp, cword);
+ /* special handling of 16 bit devices in 8 bit mode */
+ if (x8mode) {
+ info->portwidth = x8mode;;
+ }
+ return flash_write_cfiword (info, wp, cword);
}
/*-----------------------------------------------------------------------
*/
#ifdef CFG_FLASH_PROTECTION
-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);
+ 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);
+ 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) {
+ 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) {
+ if (prot == 0) {
flash_sect_t i;
- for(i = 0 ; i<info->sector_count; i++) {
- if(info->protect[i])
- flash_real_protect(info, i, 1);
+
+ for (i = 0; i < info->sector_count; i++) {
+ if (info->protect[i])
+ flash_real_protect (info, i, 1);
}
}
}
return retcode;
- }
+}
+
/*-----------------------------------------------------------------------
* flash_read_user_serial - read the OneTimeProgramming cells
*/
-void flash_read_user_serial(flash_info_t * info, void * buffer, int offset, int len)
+void flash_read_user_serial (flash_info_t * info, void *buffer, int offset,
+ int len)
{
- uchar * src;
- uchar * dst;
+ uchar *src;
+ uchar *dst;
dst = buffer;
- src = flash_make_addr(info, 0, FLASH_OFFSET_USER_PROTECTION);
- flash_write_cmd(info,0, 0, FLASH_CMD_READ_ID);
- memcpy(dst,src + offset,len);
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+ src = flash_make_addr (info, 0, FLASH_OFFSET_USER_PROTECTION);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
+ memcpy (dst, src + offset, len);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_RESET);
}
+
/*
* flash_read_factory_serial - read the device Id from the protection area
*/
-void flash_read_factory_serial(flash_info_t * info, void * buffer, int offset, int len)
+void flash_read_factory_serial (flash_info_t * info, void *buffer, int offset,
+ int len)
{
- uchar * src;
-
- src = flash_make_addr(info, 0, FLASH_OFFSET_INTEL_PROTECTION);
- flash_write_cmd(info,0, 0, FLASH_CMD_READ_ID);
- memcpy(buffer,src + offset,len);
- flash_write_cmd(info, 0, 0, FLASH_CMD_RESET);
+ uchar *src;
+
+ src = flash_make_addr (info, 0, FLASH_OFFSET_INTEL_PROTECTION);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_READ_ID);
+ memcpy (buffer, src + offset, len);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_RESET);
}
#endif /* CFG_FLASH_PROTECTION */
-static int flash_poll_status(flash_info_t * info, flash_sect_t sect)
+/*
+ * flash_is_busy - check to see if the flash is busy
+ * This routine checks the status of the chip and returns true if the chip is busy
+ */
+static int flash_is_busy (flash_info_t * info, flash_sect_t sect)
{
int retval;
- switch(info->vendor) {
+
+ switch (info->vendor) {
case CFI_CMDSET_INTEL_STANDARD:
case CFI_CMDSET_INTEL_EXTENDED:
- retval = !flash_isset(info, sect, 0, FLASH_STATUS_DONE);
+ retval = !flash_isset (info, sect, 0, FLASH_STATUS_DONE);
break;
case CFI_CMDSET_AMD_STANDARD:
case CFI_CMDSET_AMD_EXTENDED:
- retval = flash_toggle(info, sect, 0, AMD_STATUS_TOGGLE);
+ retval = flash_toggle (info, sect, 0, AMD_STATUS_TOGGLE);
break;
default:
retval = 0;
}
+ debug ("flash_is_busy: %d\n", retval);
return retval;
}
+
/*-----------------------------------------------------------------------
* 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, flash_sect_t sector, ulong tout, char * prompt)
+static int flash_status_check (flash_info_t * info, flash_sect_t sector,
+ ulong tout, char *prompt)
{
ulong start;
/* Wait for command completion */
start = get_timer (0);
- while (flash_poll_status(info, sector)) {
- 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, info->cmd_reset);
+ while (flash_is_busy (info, sector)) {
+ if (get_timer (start) > info->erase_blk_tout * CFG_HZ) {
+ printf ("Flash %s timeout at address %lx data %lx\n",
+ prompt, info->start[sector],
+ flash_read_long (info, sector, 0));
+ flash_write_cmd (info, sector, 0, info->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, flash_sect_t sector, ulong tout, char * prompt)
+static int flash_full_status_check (flash_info_t * info, flash_sect_t sector,
+ ulong tout, char *prompt)
{
int retcode;
- retcode = flash_status_check(info, sector, tout, prompt);
- switch(info->vendor) {
+
+ retcode = flash_status_check (info, sector, tout, prompt);
+ switch (info->vendor) {
case CFI_CMDSET_INTEL_EXTENDED:
case CFI_CMDSET_INTEL_STANDARD:
- if((retcode == ERR_OK) && !flash_isequal(info,sector, 0, FLASH_STATUS_DONE)) {
+ 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");
+ 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");
+ } 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");
+ 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);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_RESET);
break;
default:
break;
}
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) {
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
cword->c = c;
break;
/*-----------------------------------------------------------------------
* 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 defined(__LITTLE_ENDIAN)
+ ushort stmp;
+#endif
+ uchar *cp = (uchar *) cmdbuf;
+
+ for (i = 0; i < info->portwidth; i++)
+ *cp++ = ((i + 1) % info->chipwidth) ? '\0' : cmd;
+#if defined(__LITTLE_ENDIAN)
+ if (info->portwidth == 2) {
+ stmp = *(ushort *) cmdbuf;
+ *(ushort *) cmdbuf = swab16 (stmp);
+ }
+#endif
}
/*
* 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)
+static void flash_write_cmd (flash_info_t * info, flash_sect_t sect,
+ uint 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) {
+
+ addr.cp = flash_make_addr (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
- debug("fwc addr %p cmd %x %x 8bit x %d bit\n",addr.cp, cmd, cword.c,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ debug ("fwc addr %p cmd %x %x 8bit x %d bit\n", addr.cp, cmd,
+ cword.c, info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
*addr.cp = cword.c;
break;
case FLASH_CFI_16BIT:
- debug("fwc addr %p cmd %x %4.4x 16bit x %d bit\n",addr.wp, cmd, cword.w,
+ debug ("fwc addr %p cmd %x %4.4x 16bit x %d bit\n", addr.wp,
+ cmd, cword.w,
info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
*addr.wp = cword.w;
break;
case FLASH_CFI_32BIT:
- debug("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n",addr.lp, cmd, cword.l,
+ debug ("fwc addr %p cmd %x %8.8lx 32bit x %d bit\n", addr.lp,
+ cmd, cword.l,
info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
*addr.lp = cword.l;
break;
case FLASH_CFI_64BIT:
#ifdef DEBUG
- {
+ {
char str[20];
- print_longlong(str, cword.ll);
-
- printf("fwc addr %p cmd %x %s 64 bit x %d bit\n",addr.llp, cmd, str,
+
+ print_longlong (str, cword.ll);
+
+ debug ("fwrite addr %p cmd %x %s 64 bit x %d bit\n",
+ addr.llp, cmd, str,
info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
}
#endif
}
}
-static void flash_unlock_seq(flash_info_t *info)
+static void flash_unlock_seq (flash_info_t * info, flash_sect_t sect)
{
- flash_write_cmd(info, 0, 0x555, 0xAA);
- flash_write_cmd(info, 0, 0x2AA, 0x55);
+ flash_write_cmd (info, sect, 0x555, 0xAA);
+ flash_write_cmd (info, sect, 0x2AA, 0x55);
}
+
/*-----------------------------------------------------------------------
*/
-static int flash_isequal(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
+static int flash_isequal (flash_info_t * info, flash_sect_t sect, uint 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);
- debug("is= cmd %x(%c) addr %p ", cmd,cmd, cptr.cp);
- switch(info->portwidth) {
+ cptr.cp = flash_make_addr (info, sect, offset);
+ flash_make_cmd (info, cmd, &cword);
+
+ debug ("is= cmd %x(%c) addr %p ", cmd, cmd, cptr.cp);
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
- debug("is= %x %x\n", cptr.cp[0], cword.c);
+ debug ("is= %x %x\n", cptr.cp[0], cword.c);
retval = (cptr.cp[0] == cword.c);
break;
case FLASH_CFI_16BIT:
- debug("is= %4.4x %4.4x\n", cptr.wp[0], cword.w);
+ debug ("is= %4.4x %4.4x\n", cptr.wp[0], cword.w);
retval = (cptr.wp[0] == cword.w);
break;
case FLASH_CFI_32BIT:
- debug("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l);
+ debug ("is= %8.8lx %8.8lx\n", cptr.lp[0], cword.l);
retval = (cptr.lp[0] == cword.l);
break;
case FLASH_CFI_64BIT:
-#ifdef DEBUG
- {
+#ifdef DEBUG
+ {
char str1[20];
char str2[20];
- print_longlong(str1, cptr.llp[0]);
- print_longlong(str2, cword.ll);
- printf("is= %s %s\n", str1, str2);
+
+ print_longlong (str1, cptr.llp[0]);
+ print_longlong (str2, cword.ll);
+ debug ("is= %s %s\n", str1, str2);
}
#endif
retval = (cptr.llp[0] == cword.ll);
}
return retval;
}
+
/*-----------------------------------------------------------------------
*/
-static int flash_isset(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
+static int flash_isset (flash_info_t * info, flash_sect_t sect, uint 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) {
+
+ 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;
break;
case FLASH_CFI_64BIT:
retval = ((cptr.llp[0] & cword.ll) == cword.ll);
+ break;
default:
retval = 0;
break;
/*-----------------------------------------------------------------------
*/
-static int flash_toggle(flash_info_t * info, flash_sect_t sect, uint offset, uchar cmd)
+static int flash_toggle (flash_info_t * info, flash_sect_t sect, uint 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) {
+
+ 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) != (cptr.cp[0] & cword.c));
break;
retval = ((cptr.lp[0] & cword.l) != (cptr.lp[0] & cword.l));
break;
case FLASH_CFI_64BIT:
- retval = ((cptr.llp[0] & cword.ll) != (cptr.llp[0] & cword.ll));
+ retval = ((cptr.llp[0] & cword.ll) !=
+ (cptr.llp[0] & cword.ll));
break;
default:
retval = 0;
* 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)
{
-
- puts("flash detect cfi\n");
-
- for(info->portwidth=FLASH_CFI_8BIT; info->portwidth <= FLASH_CFI_64BIT;
- info->portwidth <<= 1) {
- /* for(info->chipwidth = info->portwidth;
- info->chipwidth > 0;
- info->chipwidth >>= 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')) {
- debug("found port %d chip %d ", info->portwidth, info->chipwidth);
- debug("port %d bits chip %d bits\n", info->portwidth << CFI_FLASH_SHIFT_WIDTH,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ debug ("flash detect cfi\n");
+
+ for (info->portwidth = FLASH_CFI_8BIT;
+ info->portwidth <= FLASH_CFI_64BIT; 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')) {
+ info->interface =
+ flash_read_ushort (info, 0,
+ FLASH_OFFSET_INTERFACE);
+ debug ("device interface is %d\n",
+ info->interface);
+ debug ("found port %d chip %d ",
+ info->portwidth, info->chipwidth);
+ debug ("port %d bits chip %d bits\n",
+ info->
+ portwidth << CFI_FLASH_SHIFT_WIDTH,
+ info->
+ chipwidth << CFI_FLASH_SHIFT_WIDTH);
return 1;
}
}
}
- puts("not found\n");
+ debug ("not found\n");
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];
+ flash_info_t *info = &flash_info[banknum];
int i, j;
flash_sect_t sect_cnt;
unsigned long sector;
unsigned long tmp;
int size_ratio;
uchar num_erase_regions;
- int erase_region_size;
- int erase_region_count;
+ int erase_region_size;
+ int erase_region_count;
info->start[0] = base;
- if(flash_detect_cfi(info)){
- info->vendor = flash_read_ushort(info, 0, FLASH_OFFSET_PRIMARY_VENDOR);
- switch(info->vendor) {
+ if (flash_detect_cfi (info)) {
+ info->vendor =
+ flash_read_ushort (info, 0,
+ FLASH_OFFSET_PRIMARY_VENDOR);
+#ifdef DEBUG
+ flash_printqry (info, 0);
+#endif
+ switch (info->vendor) {
case CFI_CMDSET_INTEL_STANDARD:
case CFI_CMDSET_INTEL_EXTENDED:
default:
info->cmd_reset = AMD_CMD_RESET;
break;
}
-
- debug("manufacturer is %d\n", info->vendor);
+
+ debug ("manufacturer is %d\n", info->vendor);
size_ratio = info->portwidth / info->chipwidth;
- num_erase_regions = flash_read_uchar(info, FLASH_OFFSET_NUM_ERASE_REGIONS);
- debug("size_ration %d port %d bits chip %d bits\n", size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
- info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
- debug("found %d erase regions\n", num_erase_regions);
+ /* if the chip is x8/x16 reduce the ratio by half */
+ if ((info->interface == FLASH_CFI_X8X16)
+ && (info->chipwidth == FLASH_CFI_BY8)) {
+ size_ratio >>= 1;
+ }
+ num_erase_regions =
+ flash_read_uchar (info,
+ FLASH_OFFSET_NUM_ERASE_REGIONS);
+ debug ("size_ratio %d port %d bits chip %d bits\n",
+ size_ratio, info->portwidth << CFI_FLASH_SHIFT_WIDTH,
+ info->chipwidth << CFI_FLASH_SHIFT_WIDTH);
+ debug ("found %d erase regions\n", num_erase_regions);
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);
+ 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 + i*4);
- erase_region_size = (tmp & 0xffff)? ((tmp & 0xffff) * 256): 128;
+ tmp = flash_read_long (info, 0,
+ FLASH_OFFSET_ERASE_REGIONS +
+ i * 4);
+ erase_region_size =
+ (tmp & 0xffff) ? ((tmp & 0xffff) * 256) : 128;
tmp >>= 16;
- erase_region_count = (tmp & 0xffff) +1;
- for(j = 0; j< erase_region_count; j++) {
+ erase_region_count = (tmp & 0xffff) + 1;
+ printf ("erase_region_count = %d erase_region_size = %d\n", erase_region_count, erase_region_size);
+ 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);
+ 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->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);
+ 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;
+ ctladdr.cp = flash_make_addr (info, 0, 0);
+ cptr.cp = (uchar *) dest;
/* Check if Flash is (sufficiently) erased */
- switch(info->portwidth) {
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
flag = ((cptr.cp[0] & cword.c) == cword.c);
break;
flag = ((cptr.wp[0] & cword.w) == cword.w);
break;
case FLASH_CFI_32BIT:
- flag = ((cptr.lp[0] & cword.l) == cword.l);
+ flag = ((cptr.lp[0] & cword.l) == cword.l);
break;
case FLASH_CFI_64BIT:
flag = ((cptr.lp[0] & cword.ll) == cword.ll);
default:
return 2;
}
- if(!flag)
+ if (!flag)
return 2;
/* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
+ flag = disable_interrupts ();
- switch(info->vendor) {
+ switch (info->vendor) {
case CFI_CMDSET_INTEL_EXTENDED:
case CFI_CMDSET_INTEL_STANDARD:
- flash_write_cmd(info, 0, 0, FLASH_CMD_CLEAR_STATUS);
- flash_write_cmd(info, 0, 0, FLASH_CMD_WRITE);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_CLEAR_STATUS);
+ flash_write_cmd (info, 0, 0, FLASH_CMD_WRITE);
break;
case CFI_CMDSET_AMD_EXTENDED:
case CFI_CMDSET_AMD_STANDARD:
- flash_unlock_seq(info);
- flash_write_cmd(info, 0, 0x555, AMD_CMD_WRITE);
+ flash_unlock_seq (info, 0);
+ flash_write_cmd (info, 0, 0x555, AMD_CMD_WRITE);
break;
}
- switch(info->portwidth) {
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
cptr.cp[0] = cword.c;
break;
}
/* re-enable interrupts if necessary */
- if(flag)
- enable_interrupts();
+ if (flag)
+ enable_interrupts ();
- return flash_full_status_check(info, 0, info->write_tout, "write");
+ return flash_full_status_check (info, 0, info->write_tout, "write");
}
#ifdef CFG_FLASH_USE_BUFFER_WRITE
* when the passed address is greater or equal to the sector address
* we have a match
*/
-static flash_sect_t find_sector(flash_info_t *info, ulong addr)
+static flash_sect_t find_sector (flash_info_t * info, ulong addr)
{
flash_sect_t sector;
- for(sector = info->sector_count - 1; sector >= 0; sector--) {
- if(addr >= info->start[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)
{
flash_sect_t sector;
int cnt;
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) {
+ 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) {
+ /* reduce the number of loops by the width of the port */
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
cnt = len;
break;
return ERR_INVAL;
break;
}
- flash_write_cmd(info, sector, 0, (uchar)cnt-1);
- while(cnt-- > 0) {
- switch(info->portwidth) {
+ flash_write_cmd (info, sector, 0, (uchar) cnt - 1);
+ while (cnt-- > 0) {
+ switch (info->portwidth) {
case FLASH_CFI_8BIT:
*dst.cp++ = *src.cp++;
break;
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_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);
+ flash_write_cmd (info, sector, 0, FLASH_CMD_CLEAR_STATUS);
return retcode;
}
#endif /* CFG_USE_FLASH_BUFFER_WRITE */
git.openpandora.org / pandora-u-boot.git / blobdiff