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-rw-r--r--board/ep8260/flash.c563
1 files changed, 289 insertions, 274 deletions
diff --git a/board/ep8260/flash.c b/board/ep8260/flash.c
index cdfdcf2..278d606 100644
--- a/board/ep8260/flash.c
+++ b/board/ep8260/flash.c
@@ -42,250 +42,265 @@ flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
*/
void flash_reset(void)
{
- if( flash_info[0].flash_id != FLASH_UNKNOWN ) {
- V_ULONG( flash_info[0].start[0] ) = 0x00F000F0;
- V_ULONG( flash_info[0].start[0] + 4 ) = 0x00F000F0;
- }
+ if( flash_info[0].flash_id != FLASH_UNKNOWN ) {
+ V_ULONG( flash_info[0].start[0] ) = 0x00F000F0;
+ V_ULONG( flash_info[0].start[0] + 4 ) = 0x00F000F0;
+ }
}
/*-----------------------------------------------------------------------
*/
ulong flash_get_size( ulong baseaddr, flash_info_t *info )
{
- short i;
- unsigned long flashtest_h, flashtest_l;
-
- /* Write auto select command sequence and test FLASH answer */
- V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00AA00AA;
- V_ULONG(baseaddr + ((ulong)0x02AA << 3)) = 0x00550055;
- V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00900090;
- V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00AA00AA;
- V_ULONG(baseaddr + 4 + ((ulong)0x02AA << 3)) = 0x00550055;
- V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00900090;
-
- flashtest_h = V_ULONG(baseaddr); /* manufacturer ID */
- flashtest_l = V_ULONG(baseaddr + 4);
-
- if ((int)flashtest_h == AMD_MANUFACT) {
- info->flash_id = FLASH_MAN_AMD;
- } else {
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- return (0); /* no or unknown flash */
- }
-
- flashtest_h = V_ULONG(baseaddr + 8); /* device ID */
- flashtest_l = V_ULONG(baseaddr + 12);
- if (flashtest_h != flashtest_l) {
- info->flash_id = FLASH_UNKNOWN;
- return(0);
- }
- if (flashtest_h == AMD_ID_DL323B) {
- info->flash_id += FLASH_AMDL323B;
- info->sector_count = 71;
- info->size = 0x01000000; /* 4 * 4 MB = 16 MB */
- } else {
- info->flash_id = FLASH_UNKNOWN;
- return(0); /* no or unknown flash */
- }
-
- /* set up sector start adress table (bottom sector type) */
- for (i = 0; i < 8; i++) {
- info->start[i] = baseaddr + (i * 0x00008000);
- }
- for (i = 8; i < info->sector_count; i++) {
- info->start[i] = baseaddr + (i * 0x00040000) - 0x001C0000;
- }
-
- /* check for protected sectors */
- for (i = 0; i < info->sector_count; i++) {
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- if ((V_ULONG( info->start[i] + 16 ) & 0x00010001) ||
- (V_ULONG( info->start[i] + 20 ) & 0x00010001)) {
- info->protect[i] = 1; /* D0 = 1 if protected */
- } else {
- info->protect[i] = 0;
- }
- }
-
- flash_reset();
- return(info->size);
+ short i;
+ unsigned long flashtest_h, flashtest_l;
+
+ /* Write auto select command sequence and test FLASH answer */
+ V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00AA00AA;
+ V_ULONG(baseaddr + ((ulong)0x02AA << 3)) = 0x00550055;
+ V_ULONG(baseaddr + ((ulong)0x0555 << 3)) = 0x00900090;
+ V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00AA00AA;
+ V_ULONG(baseaddr + 4 + ((ulong)0x02AA << 3)) = 0x00550055;
+ V_ULONG(baseaddr + 4 + ((ulong)0x0555 << 3)) = 0x00900090;
+
+ flashtest_h = V_ULONG(baseaddr); /* manufacturer ID */
+ flashtest_l = V_ULONG(baseaddr + 4);
+
+ if ((int)flashtest_h == AMD_MANUFACT) {
+ info->flash_id = FLASH_MAN_AMD;
+ } else {
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
+ return (0); /* no or unknown flash */
+ }
+
+ flashtest_h = V_ULONG(baseaddr + 8); /* device ID */
+ flashtest_l = V_ULONG(baseaddr + 12);
+ if (flashtest_h != flashtest_l) {
+ info->flash_id = FLASH_UNKNOWN;
+ return(0);
+ }
+
+ switch((int)flashtest_h) {
+ case AMD_ID_DL323B:
+ info->flash_id += FLASH_AMDL323B;
+ info->sector_count = 71;
+ info->size = 0x01000000; /* 4 * 4 MB = 16 MB */
+ break;
+ case AMD_ID_LV640U: /* AMDLV640 and AMDLV641 have same ID */
+ info->flash_id += FLASH_AMLV640U;
+ info->sector_count = 128;
+ info->size = 0x02000000; /* 4 * 8 MB = 32 MB */
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return(0); /* no or unknown flash */
+ }
+
+ if(flashtest_h == AMD_ID_LV640U) {
+ /* set up sector start adress table (uniform sector type) */
+ for (i = 0; i < info->sector_count; i++)
+ info->start[i] = baseaddr + (i * 0x00040000);
+ } else {
+ /* set up sector start adress table (bottom sector type) */
+ for (i = 0; i < 8; i++) {
+ info->start[i] = baseaddr + (i * 0x00008000);
+ }
+ for (i = 8; i < info->sector_count; i++) {
+ info->start[i] = baseaddr + (i * 0x00040000) - 0x001C0000;
+ }
+ }
+ /* check for protected sectors */
+ for (i = 0; i < info->sector_count; i++) {
+ /* read sector protection at sector address, (A7 .. A0) = 0x02 */
+ if ((V_ULONG( info->start[i] + 16 ) & 0x00010001) ||
+ (V_ULONG( info->start[i] + 20 ) & 0x00010001)) {
+ info->protect[i] = 1; /* D0 = 1 if protected */
+ } else {
+ info->protect[i] = 0;
+ }
+ }
+
+ flash_reset();
+ return(info->size);
}
/*-----------------------------------------------------------------------
*/
unsigned long flash_init (void)
{
- unsigned long size_b0 = 0;
- int i;
+ unsigned long size_b0 = 0;
+ int i;
- /* Init: no FLASHes known */
- for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
- flash_info[i].flash_id = FLASH_UNKNOWN;
- }
+ /* Init: no FLASHes known */
+ for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
+ flash_info[i].flash_id = FLASH_UNKNOWN;
+ }
- /* Static FLASH Bank configuration here (only one bank) */
+ /* Static FLASH Bank configuration here (only one bank) */
- size_b0 = flash_get_size(CFG_FLASH0_BASE, &flash_info[0]);
- if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
- printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
- size_b0, size_b0>>20);
- }
+ size_b0 = flash_get_size(CFG_FLASH0_BASE, &flash_info[0]);
+ if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
+ printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+ size_b0, size_b0>>20);
+ }
- /*
- * protect monitor and environment sectors
- */
+ /*
+ * protect monitor and environment sectors
+ */
#if CFG_MONITOR_BASE >= CFG_FLASH0_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+monitor_flash_len-1,
+ &flash_info[0]);
#endif
#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
# ifndef CFG_ENV_SIZE
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
# endif
- flash_protect(FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
- &flash_info[0]);
+ flash_protect(FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
+ &flash_info[0]);
#endif
- return (size_b0);
+ return (size_b0);
}
/*-----------------------------------------------------------------------
*/
void flash_print_info (flash_info_t *info)
{
- int i;
+ int i;
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("missing or unknown FLASH type\n");
- return;
- }
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("missing or unknown FLASH type\n");
+ return;
+ }
- switch ((info->flash_id >> 16) & 0xff) {
- case FLASH_MAN_AMD: printf ("AMD "); break;
- default: printf ("Unknown Vendor "); break;
- }
+ switch ((info->flash_id >> 16) & 0xff) {
+ case FLASH_MAN_AMD: printf ("AMD "); break;
+ default: printf ("Unknown Vendor "); break;
+ }
- switch (info->flash_id & FLASH_TYPEMASK) {
- case FLASH_AMDL323B: printf ("29DL323B (32 M, bottom sector)\n");
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AMDL323B: printf ("29DL323B (32 M, bottom sector)\n");
break;
- default: printf ("Unknown Chip Type\n");
+ case FLASH_AMLV640U: printf ("29LV640U (64 M, uniform sector)\n");
break;
- }
-
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20, info->sector_count);
-
- printf (" Sector Start Addresses:");
- for (i=0; i<info->sector_count; ++i) {
- if ((i % 5) == 0)
- printf ("\n ");
- printf (" %08lX%s",
- info->start[i],
- info->protect[i] ? " (RO)" : " "
- );
- }
- printf ("\n");
- return;
+ default: printf ("Unknown Chip Type\n");
+ break;
+ }
+
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
+
+ printf (" Sector Start Addresses:");
+ for (i=0; i<info->sector_count; ++i) {
+ if ((i % 5) == 0)
+ printf ("\n ");
+ printf (" %08lX%s",
+ info->start[i],
+ info->protect[i] ? " (RO)" : " "
+ );
+ }
+ printf ("\n");
+ return;
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
- int flag, prot, sect, l_sect;
- ulong start, now, last;
+ int flag, prot, sect, l_sect;
+ ulong start, now, last;
+
+ if ((s_first < 0) || (s_first > s_last)) {
+ if (info->flash_id == FLASH_UNKNOWN) {
+ printf ("- missing\n");
+ } else {
+ printf ("- no sectors to erase\n");
+ }
+ return 1;
+ }
- if ((s_first < 0) || (s_first > s_last)) {
- if (info->flash_id == FLASH_UNKNOWN) {
- printf ("- missing\n");
- } else {
- printf ("- no sectors to erase\n");
+ prot = 0;
+ for (sect = s_first; sect <= s_last; sect++) {
+ if (info->protect[sect])
+ prot++;
}
- return 1;
- }
-
- prot = 0;
- for (sect = s_first; sect <= s_last; sect++) {
- if (info->protect[sect])
- prot++;
- }
-
- if (prot) {
- printf ("- Warning: %d protected sectors will not be erased!\n",
- prot);
- } else {
- printf ("\n");
- }
-
- l_sect = -1;
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00800080;
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00800080;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
- udelay (1000);
-
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
- if (info->protect[sect] == 0) { /* not protected */
- V_ULONG( info->start[sect] ) = 0x00300030;
- V_ULONG( info->start[sect] + 4 ) = 0x00300030;
- l_sect = sect;
+
+ if (prot) {
+ printf ("- Warning: %d protected sectors will not be erased!\n",
+ prot);
+ } else {
+ printf ("\n");
}
- }
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* wait at least 80us - let's wait 1 ms */
- udelay (1000);
-
- /*
- * We wait for the last triggered sector
- */
- if (l_sect < 0)
- goto DONE;
-
- start = get_timer (0);
- last = start;
- while ((V_ULONG( info->start[l_sect] ) & 0x00800080) != 0x00800080 ||
- (V_ULONG( info->start[l_sect] + 4 ) & 0x00800080) != 0x00800080)
- {
- if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
- return 1;
+
+ l_sect = -1;
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
+ V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
+ V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00800080;
+ V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
+ V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
+ V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
+ V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
+ V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00800080;
+ V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
+ V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
+ udelay (1000);
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect<=s_last; sect++) {
+ if (info->protect[sect] == 0) { /* not protected */
+ V_ULONG( info->start[sect] ) = 0x00300030;
+ V_ULONG( info->start[sect] + 4 ) = 0x00300030;
+ l_sect = sect;
+ }
}
- /* show that we're waiting */
- if ((now - last) > 1000) { /* every second */
- serial_putc ('.');
- last = now;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* wait at least 80us - let's wait 1 ms */
+ udelay (1000);
+
+ /*
+ * We wait for the last triggered sector
+ */
+ if (l_sect < 0)
+ goto DONE;
+
+ start = get_timer (0);
+ last = start;
+ while ((V_ULONG( info->start[l_sect] ) & 0x00800080) != 0x00800080 ||
+ (V_ULONG( info->start[l_sect] + 4 ) & 0x00800080) != 0x00800080)
+ {
+ if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
+ printf ("Timeout\n");
+ return 1;
+ }
+ /* show that we're waiting */
+ if ((now - last) > 1000) { /* every second */
+ serial_putc ('.');
+ last = now;
+ }
}
- }
- DONE:
- /* reset to read mode */
- flash_reset ();
+ DONE:
+ /* reset to read mode */
+ flash_reset ();
- printf (" done\n");
- return 0;
+ printf (" done\n");
+ return 0;
}
static int write_dword (flash_info_t *, ulong, unsigned char *);
@@ -299,49 +314,49 @@ static int write_dword (flash_info_t *, ulong, unsigned char *);
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
{
- ulong dp;
- static unsigned char bb[8];
- int i, l, rc, cc = cnt;
-
- dp = (addr & ~7); /* get lower dword aligned address */
-
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - dp) != 0) {
- for (i = 0; i < 8; i++)
- bb[i] = (i < l || (i-l) >= cc) ? V_BYTE(dp+i) : *src++;
- if ((rc = write_dword(info, dp, bb)) != 0)
- {
- return (rc);
+ ulong dp;
+ static unsigned char bb[8];
+ int i, l, rc, cc = cnt;
+
+ dp = (addr & ~7); /* get lower dword aligned address */
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - dp) != 0) {
+ for (i = 0; i < 8; i++)
+ bb[i] = (i < l || (i-l) >= cc) ? V_BYTE(dp+i) : *src++;
+ if ((rc = write_dword(info, dp, bb)) != 0)
+ {
+ return (rc);
+ }
+ dp += 8;
+ cc -= 8 - l;
+ }
+
+ /*
+ * handle word aligned part
+ */
+ while (cc >= 8) {
+ if ((rc = write_dword(info, dp, src)) != 0) {
+ return (rc);
+ }
+ dp += 8;
+ src += 8;
+ cc -= 8;
}
- dp += 8;
- cc -= 8 - l;
- }
-
- /*
- * handle word aligned part
- */
- while (cc >= 8) {
- if ((rc = write_dword(info, dp, src)) != 0) {
- return (rc);
+
+ if (cc <= 0) {
+ return (0);
}
- dp += 8;
- src += 8;
- cc -= 8;
- }
- if (cc <= 0) {
- return (0);
- }
-
- /*
- * handle unaligned tail bytes
- */
- for (i = 0; i < 8; i++) {
- bb[i] = (i < cc) ? *src++ : V_BYTE(dp+i);
- }
- return (write_dword(info, dp, bb));
+ /*
+ * handle unaligned tail bytes
+ */
+ for (i = 0; i < 8; i++) {
+ bb[i] = (i < cc) ? *src++ : V_BYTE(dp+i);
+ }
+ return (write_dword(info, dp, bb));
}
/*-----------------------------------------------------------------------
@@ -352,45 +367,45 @@ int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
*/
static int write_dword (flash_info_t *info, ulong dest, unsigned char * pdata)
{
- ulong start;
- ulong cl = 0, ch =0;
- int flag, i;
-
- for (ch=0, i=0; i < 4; i++)
- ch = (ch << 8) + *pdata++; /* high word */
- for (cl=0, i=0; i < 4; i++)
- cl = (cl << 8) + *pdata++; /* low word */
-
- /* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & ch) != ch
- ||(*((vu_long *)(dest + 4)) & cl) != cl)
- {
- return (2);
- }
-
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
-
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00A000A0;
- V_ULONG( dest ) = ch;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
- V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
- V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00A000A0;
- V_ULONG( dest + 4 ) = cl;
-
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
-
- /* data polling for D7 */
- start = get_timer (0);
- while (((V_ULONG( dest ) & 0x00800080) != (ch & 0x00800080)) ||
- ((V_ULONG( dest + 4 ) & 0x00800080) != (cl & 0x00800080))) {
- if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
- return (1);
+ ulong start;
+ ulong cl = 0, ch =0;
+ int flag, i;
+
+ for (ch=0, i=0; i < 4; i++)
+ ch = (ch << 8) + *pdata++; /* high word */
+ for (cl=0, i=0; i < 4; i++)
+ cl = (cl << 8) + *pdata++; /* low word */
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*((vu_long *)dest) & ch) != ch
+ ||(*((vu_long *)(dest + 4)) & cl) != cl)
+ {
+ return (2);
}
- }
- return (0);
+
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
+
+ V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00AA00AA;
+ V_ULONG( info->start[0] + (0x02AA << 3) ) = 0x00550055;
+ V_ULONG( info->start[0] + (0x0555 << 3) ) = 0x00A000A0;
+ V_ULONG( dest ) = ch;
+ V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00AA00AA;
+ V_ULONG( info->start[0] + 4 + (0x02AA << 3) ) = 0x00550055;
+ V_ULONG( info->start[0] + 4 + (0x0555 << 3) ) = 0x00A000A0;
+ V_ULONG( dest + 4 ) = cl;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
+
+ /* data polling for D7 */
+ start = get_timer (0);
+ while (((V_ULONG( dest ) & 0x00800080) != (ch & 0x00800080)) ||
+ ((V_ULONG( dest + 4 ) & 0x00800080) != (cl & 0x00800080))) {
+ if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
+ return (1);
+ }
+ }
+ return (0);
}
generated by cgit v1.1 at 2024-11-24 19:59:34 +0000