summaryrefslogtreecommitdiff
path: root/board/impa7/flash.c
diff options
context:
space:
mode:
Diffstat (limited to 'board/impa7/flash.c')
-rw-r--r--board/impa7/flash.c544
1 files changed, 268 insertions, 276 deletions
diff --git a/board/impa7/flash.c b/board/impa7/flash.c
index 3e380e5..ca76fe8 100644
--- a/board/impa7/flash.c
+++ b/board/impa7/flash.c
@@ -28,338 +28,330 @@
#define MAIN_SECT_SIZE 0x20000
#define PARAM_SECT_SIZE 0x4000
-flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
/*-----------------------------------------------------------------------
*/
-ulong flash_init(void)
+ulong flash_init (void)
{
- int i, j;
- ulong size = 0;
-
- for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
- {
- ulong flashbase = 0;
- flash_info[i].flash_id =
- (INTEL_MANUFACT & FLASH_VENDMASK) |
- (INTEL_ID_28F320B3T & FLASH_TYPEMASK);
- flash_info[i].size = FLASH_BANK_SIZE;
- flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
- memset(flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
- if (i == 0)
- flashbase = PHYS_FLASH_1;
- else if (i == 1)
- flashbase = PHYS_FLASH_2;
- else
- panic("configured too many flash banks!\n");
- for (j = 0; j < flash_info[i].sector_count; j++)
- {
- if (j <= 7)
- {
- flash_info[i].start[j] = flashbase + j * PARAM_SECT_SIZE;
- }
- else
- {
- flash_info[i].start[j] = flashbase + (j - 7)*MAIN_SECT_SIZE;
- }
+ int i, j;
+ ulong size = 0;
+
+ for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+ ulong flashbase = 0;
+
+ flash_info[i].flash_id =
+ (INTEL_MANUFACT & FLASH_VENDMASK) |
+ (INTEL_ID_28F320B3T & FLASH_TYPEMASK);
+ flash_info[i].size = FLASH_BANK_SIZE;
+ flash_info[i].sector_count = CFG_MAX_FLASH_SECT;
+ memset (flash_info[i].protect, 0, CFG_MAX_FLASH_SECT);
+ if (i == 0)
+ flashbase = PHYS_FLASH_1;
+ else if (i == 1)
+ flashbase = PHYS_FLASH_2;
+ else
+ panic ("configured too many flash banks!\n");
+ for (j = 0; j < flash_info[i].sector_count; j++) {
+ if (j <= 7) {
+ flash_info[i].start[j] =
+ flashbase + j * PARAM_SECT_SIZE;
+ } else {
+ flash_info[i].start[j] =
+ flashbase + (j - 7) * MAIN_SECT_SIZE;
+ }
+ }
+ size += flash_info[i].size;
}
- size += flash_info[i].size;
- }
-
- /* Protect monitor and environment sectors
- */
- flash_protect(FLAG_PROTECT_SET,
- CFG_FLASH_BASE,
- CFG_FLASH_BASE + monitor_flash_len - 1,
- &flash_info[0]);
-
- flash_protect(FLAG_PROTECT_SET,
- CFG_ENV_ADDR,
- CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
- &flash_info[0]);
-
- return size;
-}
-/*-----------------------------------------------------------------------
- */
-void flash_print_info (flash_info_t *info)
-{
- int i;
-
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case (INTEL_MANUFACT & FLASH_VENDMASK):
- printf("Intel: ");
- break;
- default:
- printf("Unknown Vendor ");
- break;
- }
-
- switch (info->flash_id & FLASH_TYPEMASK)
- {
- case (INTEL_ID_28F320B3T & FLASH_TYPEMASK):
- printf("28F320F3B (16Mbit)\n");
- break;
- default:
- printf("Unknown Chip Type\n");
- goto Done;
- 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");
+ /* Protect monitor and environment sectors
+ */
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_FLASH_BASE,
+ CFG_FLASH_BASE + monitor_flash_len - 1,
+ &flash_info[0]);
+
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
-Done:
+ return size;
}
/*-----------------------------------------------------------------------
*/
-
-int flash_erase (flash_info_t *info, int s_first, int s_last)
+void flash_print_info (flash_info_t * info)
{
- int flag, prot, sect;
- int rc = ERR_OK;
-
- if (info->flash_id == FLASH_UNKNOWN)
- return ERR_UNKNOWN_FLASH_TYPE;
+ int i;
+
+ switch (info->flash_id & FLASH_VENDMASK) {
+ case (INTEL_MANUFACT & FLASH_VENDMASK):
+ printf ("Intel: ");
+ break;
+ default:
+ printf ("Unknown Vendor ");
+ break;
+ }
- if ((s_first < 0) || (s_first > s_last)) {
- return ERR_INVAL;
- }
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case (INTEL_ID_28F320B3T & FLASH_TYPEMASK):
+ printf ("28F320F3B (16Mbit)\n");
+ break;
+ default:
+ printf ("Unknown Chip Type\n");
+ goto Done;
+ break;
+ }
- if ((info->flash_id & FLASH_VENDMASK) !=
- (INTEL_MANUFACT & FLASH_VENDMASK)) {
- return ERR_UNKNOWN_FLASH_VENDOR;
- }
+ printf (" Size: %ld MB in %d Sectors\n",
+ info->size >> 20, info->sector_count);
- prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
- if (info->protect[sect]) {
- prot++;
+ 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)" : " ");
}
- }
- if (prot)
- return ERR_PROTECTED;
+ printf ("\n");
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
- flag = disable_interrupts();
+ Done:;
+}
- /* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last && !ctrlc(); sect++) {
+/*-----------------------------------------------------------------------
+ */
- printf("Erasing sector %2d ... ", sect);
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ int flag, prot, sect;
+ int rc = ERR_OK;
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked();
+ if (info->flash_id == FLASH_UNKNOWN)
+ return ERR_UNKNOWN_FLASH_TYPE;
- if (info->protect[sect] == 0) { /* not protected */
- vu_long *addr = (vu_long *)(info->start[sect]);
+ if ((s_first < 0) || (s_first > s_last)) {
+ return ERR_INVAL;
+ }
- *addr = 0x00200020; /* erase setup */
- *addr = 0x00D000D0; /* erase confirm */
+ if ((info->flash_id & FLASH_VENDMASK) !=
+ (INTEL_MANUFACT & FLASH_VENDMASK)) {
+ return ERR_UNKNOWN_FLASH_VENDOR;
+ }
- while ((*addr & 0x00800080) != 0x00800080) {
- if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
- *addr = 0x00B000B0; /* suspend erase */
- *addr = 0x00FF00FF; /* reset to read mode */
- rc = ERR_TIMOUT;
- goto outahere;
+ prot = 0;
+ for (sect = s_first; sect <= s_last; ++sect) {
+ if (info->protect[sect]) {
+ prot++;
}
- }
-
- *addr = 0x00FF00FF; /* reset to read mode */
}
- printf("ok.\n");
- }
- if (ctrlc())
- printf("User Interrupt!\n");
+ if (prot)
+ return ERR_PROTECTED;
+
+ /*
+ * Disable interrupts which might cause a timeout
+ * here. Remember that our exception vectors are
+ * at address 0 in the flash, and we don't want a
+ * (ticker) exception to happen while the flash
+ * chip is in programming mode.
+ */
+ flag = disable_interrupts ();
+
+ /* Start erase on unprotected sectors */
+ for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
+
+ printf ("Erasing sector %2d ... ", sect);
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked ();
+
+ if (info->protect[sect] == 0) { /* not protected */
+ vu_long *addr = (vu_long *) (info->start[sect]);
+
+ *addr = 0x00200020; /* erase setup */
+ *addr = 0x00D000D0; /* erase confirm */
+
+ while ((*addr & 0x00800080) != 0x00800080) {
+ if (get_timer_masked () >
+ CFG_FLASH_ERASE_TOUT) {
+ *addr = 0x00B000B0; /* suspend erase */
+ *addr = 0x00FF00FF; /* reset to read mode */
+ rc = ERR_TIMOUT;
+ goto outahere;
+ }
+ }
+
+ *addr = 0x00FF00FF; /* reset to read mode */
+ }
+ printf ("ok.\n");
+ }
+ if (ctrlc ())
+ printf ("User Interrupt!\n");
-outahere:
+ outahere:
- /* allow flash to settle - wait 10 ms */
- udelay_masked(10000);
+ /* allow flash to settle - wait 10 ms */
+ udelay_masked (10000);
- if (flag)
- enable_interrupts();
+ if (flag)
+ enable_interrupts ();
- return rc;
+ return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash
*/
-static int write_word (flash_info_t *info, ulong dest, ulong data)
+static int write_word (flash_info_t * info, ulong dest, ulong data)
{
- vu_long *addr = (vu_long *)dest;
- ulong barf;
- int rc = ERR_OK;
- int flag;
-
- /* Check if Flash is (sufficiently) erased
- */
- if ((*addr & data) != data)
- return ERR_NOT_ERASED;
-
- /*
- * Disable interrupts which might cause a timeout
- * here. Remember that our exception vectors are
- * at address 0 in the flash, and we don't want a
- * (ticker) exception to happen while the flash
- * chip is in programming mode.
- */
- flag = disable_interrupts();
-
- /* clear status register command */
- *addr = 0x00500050;
-
- /* program set-up command */
- *addr = 0x00400040;
-
- /* latch address/data */
- *addr = data;
-
- /* arm simple, non interrupt dependent timer */
- reset_timer_masked();
-
- /* read status register command */
- *addr = 0x00700070;
-
- /* wait while polling the status register */
- while((*addr & 0x00800080) != 0x00800080)
- {
- if (get_timer_masked() > CFG_FLASH_WRITE_TOUT) {
- rc = ERR_TIMOUT;
- /* suspend program command */
- *addr = 0x00B000B0;
- goto outahere;
- }
+ vu_long *addr = (vu_long *) dest;
+ ulong barf;
+ int rc = ERR_OK;
+ int flag;
+
+ /* Check if Flash is (sufficiently) erased
+ */
+ if ((*addr & data) != data)
+ return ERR_NOT_ERASED;
+
+ /*
+ * Disable interrupts which might cause a timeout
+ * here. Remember that our exception vectors are
+ * at address 0 in the flash, and we don't want a
+ * (ticker) exception to happen while the flash
+ * chip is in programming mode.
+ */
+ flag = disable_interrupts ();
+
+ /* clear status register command */
+ *addr = 0x00500050;
+
+ /* program set-up command */
+ *addr = 0x00400040;
+
+ /* latch address/data */
+ *addr = data;
+
+ /* arm simple, non interrupt dependent timer */
+ reset_timer_masked ();
+
+ /* read status register command */
+ *addr = 0x00700070;
+
+ /* wait while polling the status register */
+ while ((*addr & 0x00800080) != 0x00800080) {
+ if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {
+ rc = ERR_TIMOUT;
+ /* suspend program command */
+ *addr = 0x00B000B0;
+ goto outahere;
+ }
- if( *addr & 0x003A003A) { /* check for error */
- barf = *addr;
- if( barf & 0x003A0000) {
- barf >>=16;
- } else {
- barf &= 0x0000003A;
- }
- printf("\nFlash write error %02lx at address %08lx\n",
- barf, (unsigned long)dest);
- if(barf & 0x0002) {
- printf("Block locked, not erased.\n");
- rc = ERR_NOT_ERASED;
- goto outahere;
- }
- if(barf & 0x0010) {
- printf("Programming error.\n");
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- if(barf & 0x0008) {
- printf("Vpp Low error.\n");
- rc = ERR_PROG_ERROR;
- goto outahere;
- }
- rc = ERR_PROG_ERROR;
- goto outahere;
+ if (*addr & 0x003A003A) { /* check for error */
+ barf = *addr;
+ if (barf & 0x003A0000) {
+ barf >>= 16;
+ } else {
+ barf &= 0x0000003A;
+ }
+ printf ("\nFlash write error %02lx at address %08lx\n", barf, (unsigned long) dest);
+ if (barf & 0x0002) {
+ printf ("Block locked, not erased.\n");
+ rc = ERR_NOT_ERASED;
+ goto outahere;
+ }
+ if (barf & 0x0010) {
+ printf ("Programming error.\n");
+ rc = ERR_PROG_ERROR;
+ goto outahere;
+ }
+ if (barf & 0x0008) {
+ printf ("Vpp Low error.\n");
+ rc = ERR_PROG_ERROR;
+ goto outahere;
+ }
+ rc = ERR_PROG_ERROR;
+ goto outahere;
+ }
}
- }
-outahere:
- /* read array command */
- *addr = 0x00FF00FF;
+ outahere:
+ /* read array command */
+ *addr = 0x00FF00FF;
- if (flag)
- enable_interrupts();
+ if (flag)
+ enable_interrupts ();
- return rc;
+ return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash.
*/
-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 cp, wp, data;
- int l;
- int i, rc;
-
- wp = (addr & ~3); /* get lower word aligned address */
+ ulong cp, wp, data;
+ int l;
+ int i, rc;
+
+ wp = (addr & ~3); /* get lower word aligned address */
+
+ /*
+ * handle unaligned start bytes
+ */
+ if ((l = addr - wp) != 0) {
+ data = 0;
+ for (i = 0, cp = wp; i < l; ++i, ++cp) {
+ data = (data >> 8) | (*(uchar *) cp << 24);
+ }
+ for (; i < 4 && cnt > 0; ++i) {
+ data = (data >> 8) | (*src++ << 24);
+ --cnt;
+ ++cp;
+ }
+ for (; cnt == 0 && i < 4; ++i, ++cp) {
+ data = (data >> 8) | (*(uchar *) cp << 24);
+ }
- /*
- * handle unaligned start bytes
- */
- if ((l = addr - wp) != 0) {
- data = 0;
- for (i=0, cp=wp; i<l; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 24);
+ if ((rc = write_word (info, wp, data)) != 0) {
+ return (rc);
+ }
+ wp += 4;
}
- for (; i<4 && cnt>0; ++i) {
- data = (data >> 8) | (*src++ << 24);
- --cnt;
- ++cp;
+
+ /*
+ * handle word aligned part
+ */
+ while (cnt >= 4) {
+ data = *((vu_long *) src);
+ if ((rc = write_word (info, wp, data)) != 0) {
+ return (rc);
+ }
+ src += 4;
+ wp += 4;
+ cnt -= 4;
}
- for (; cnt==0 && i<4; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 24);
+
+ if (cnt == 0) {
+ return ERR_OK;
}
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
+ /*
+ * handle unaligned tail bytes
+ */
+ data = 0;
+ for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
+ data = (data >> 8) | (*src++ << 24);
+ --cnt;
}
- wp += 4;
- }
-
- /*
- * handle word aligned part
- */
- while (cnt >= 4) {
- data = *((vu_long*)src);
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
+ for (; i < 4; ++i, ++cp) {
+ data = (data >> 8) | (*(uchar *) cp << 24);
}
- src += 4;
- wp += 4;
- cnt -= 4;
- }
-
- if (cnt == 0) {
- return ERR_OK;
- }
-
- /*
- * handle unaligned tail bytes
- */
- data = 0;
- for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
- data = (data >> 8) | (*src++ << 24);
- --cnt;
- }
- for (; i<4; ++i, ++cp) {
- data = (data >> 8) | (*(uchar *)cp << 24);
- }
-
- return write_word(info, wp, data);
+
+ return write_word (info, wp, data);
}
generated by cgit v1.1 at 2024-11-28 20:24:30 +0000