#include <common.h>
#include <mpc8xx.h>
-flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
+flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
/*-----------------------------------------------------------------------
* Functions
*/
-static ulong flash_get_size (vu_long *addr, flash_info_t *info);
-static int write_word (flash_info_t *info, ulong dest, ulong data);
-static void flash_get_offsets (ulong base, flash_info_t *info);
+static ulong flash_get_size(vu_long *addr, flash_info_t *info);
+static int write_word(flash_info_t *info, ulong dest, ulong data);
+static void flash_get_offsets(ulong base, flash_info_t *info);
/*-----------------------------------------------------------------------
*/
-unsigned long flash_init (void)
+unsigned long flash_init(void)
{
unsigned long size_b0, size_b1;
int i;
/* Init: no FLASHes known */
- for (i=0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
- flash_info[i].flash_id = FLASH_UNKNOWN;
+ for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i)
+ flash_info[i].flash_id = FLASH_UNKNOWN;
/* Detect size */
- size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE, &flash_info[0]);
+ size_b0 = flash_get_size((vu_long *)CONFIG_SYS_FLASH_BASE,
+ &flash_info[0]);
/* Setup offsets */
- flash_get_offsets (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
+ flash_get_offsets(CONFIG_SYS_FLASH_BASE, &flash_info[0]);
#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
/* Monitor protection ON by default */
flash_info[0].size = size_b0;
flash_info[1].size = size_b1;
- return (size_b0 + size_b1);
+ return size_b0 + size_b1;
}
/*-----------------------------------------------------------------------
* Fix this to support variable sector sizes
*/
-static void flash_get_offsets (ulong base, flash_info_t *info)
+static void flash_get_offsets(ulong base, flash_info_t *info)
{
int i;
/*-----------------------------------------------------------------------
*/
-void flash_print_info (flash_info_t *info)
+void flash_print_info(flash_info_t *info)
{
int i;
- if (info->flash_id == FLASH_UNKNOWN)
- {
- puts ("missing or unknown FLASH type\n");
+ if (info->flash_id == FLASH_UNKNOWN) {
+ puts("missing or unknown FLASH type\n");
return;
}
- switch (info->flash_id & FLASH_VENDMASK)
- {
- case FLASH_MAN_AMD: printf ("AMD "); break;
- case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
- case FLASH_MAN_BM: printf ("BRIGHT MICRO "); break;
- default: printf ("Unknown Vendor "); break;
+ switch (info->flash_id & FLASH_VENDMASK) {
+ case FLASH_MAN_AMD:
+ printf("AMD ");
+ break;
+ case FLASH_MAN_FUJ:
+ printf("FUJITSU ");
+ break;
+ case FLASH_MAN_BM:
+ printf("BRIGHT MICRO ");
+ break;
+ default:
+ printf("Unknown Vendor ");
+ break;
}
- switch (info->flash_id & FLASH_TYPEMASK)
- {
- case FLASH_AM040: printf ("29F040 or 29LV040 (4 Mbit, uniform sectors)\n");
- break;
- case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
- break;
- case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
- break;
- case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
- break;
- case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
- break;
- case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
- break;
- default: printf ("Unknown Chip Type\n");
- break;
+ switch (info->flash_id & FLASH_TYPEMASK) {
+ case FLASH_AM040:
+ printf("29F040 or 29LV040 (4 Mbit, uniform sectors)\n");
+ break;
+ case FLASH_AM400B:
+ printf("AM29LV400B (4 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM400T:
+ printf("AM29LV400T (4 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM800B:
+ printf("AM29LV800B (8 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM800T:
+ printf("AM29LV800T (8 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM160B:
+ printf("AM29LV160B (16 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM160T:
+ printf("AM29LV160T (16 Mbit, top boot sector)\n");
+ break;
+ case FLASH_AM320B:
+ printf("AM29LV320B (32 Mbit, bottom boot sect)\n");
+ break;
+ case FLASH_AM320T:
+ printf("AM29LV320T (32 Mbit, top boot sector)\n");
+ break;
+ default:
+ printf("Unknown Chip Type\n");
+ break;
}
if (info->size >> 20) {
- printf (" Size: %ld MB in %d Sectors\n",
- info->size >> 20,
- info->sector_count);
+ printf(" Size: %ld MB in %d Sectors\n",
+ info->size >> 20,
+ info->sector_count);
} else {
- printf (" Size: %ld KB in %d Sectors\n",
- info->size >> 10,
- info->sector_count);
+ printf(" Size: %ld KB in %d Sectors\n",
+ info->size >> 10,
+ info->sector_count);
}
- puts (" Sector Start Addresses:");
+ puts(" Sector Start Addresses:");
- for (i=0; i<info->sector_count; ++i)
- {
+ for (i = 0; i < info->sector_count; ++i) {
if ((i % 5) == 0)
- {
- puts ("\n ");
- }
+ puts("\n ");
- printf (" %08lX%s",
+ printf(" %08lX%s",
info->start[i],
info->protect[i] ? " (RO)" : " ");
}
- putc ('\n');
+ putc('\n');
return;
}
/*-----------------------------------------------------------------------
* The following code cannot be run from FLASH!
*/
-static ulong flash_get_size (vu_long *addr, flash_info_t *info)
+static ulong flash_get_size(vu_long *addr, flash_info_t *info)
{
short i;
volatile unsigned char *caddr;
/* Write auto select command: read Manufacturer ID */
-#if 0
- printf("Base address is: %08x\n", caddr);
-#endif
+ debug("Base address is: %08x\n", caddr);
caddr[0x0555] = 0xAA;
caddr[0x02AA] = 0x55;
value = caddr[0];
-#if 0
- printf("Manufact ID: %02x\n", value);
-#endif
- switch (value)
- {
- case 0x1: /* AMD_MANUFACT */
- info->flash_id = FLASH_MAN_AMD;
- break;
+ debug("Manufact ID: %02x\n", value);
- case 0x4: /* FUJ_MANUFACT */
- info->flash_id = FLASH_MAN_FUJ;
+ switch (value) {
+ case 0x1: /* AMD_MANUFACT */
+ info->flash_id = FLASH_MAN_AMD;
+ break;
+ case 0x4: /* FUJ_MANUFACT */
+ info->flash_id = FLASH_MAN_FUJ;
+ break;
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ info->sector_count = 0;
+ info->size = 0;
break;
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- info->sector_count = 0;
- info->size = 0;
- break;
}
value = caddr[1]; /* device ID */
-#if 0
- printf("Device ID: %02x\n", value);
-#endif
- switch (value)
- {
- case AMD_ID_LV040B:
- info->flash_id += FLASH_AM040;
- info->sector_count = 8;
- info->size = 0x00080000;
- break; /* => 512Kb */
-
- default:
- info->flash_id = FLASH_UNKNOWN;
- return (0); /* => no or unknown flash */
+ debug("Device ID: %02x\n", value);
+
+ switch (value) {
+ case AMD_ID_LV040B:
+ info->flash_id += FLASH_AM040;
+ info->sector_count = 8;
+ info->size = 0x00080000;
+ break; /* => 512Kb */
+
+ default:
+ info->flash_id = FLASH_UNKNOWN;
+ return 0; /* => no or unknown flash */
}
- flash_get_offsets ((ulong)addr, &flash_info[0]);
+ flash_get_offsets((ulong)addr, &flash_info[0]);
/* check for protected sectors */
- for (i = 0; i < info->sector_count; i++)
- {
- /* read sector protection at sector address, (A7 .. A0) = 0x02 */
- /* D0 = 1 if protected */
+ for (i = 0; i < info->sector_count; i++) {
+ /*
+ * read sector protection at sector address,
+ * (A7 .. A0) = 0x02
+ * D0 = 1 if protected
+ */
caddr = (volatile unsigned char *)(info->start[i]);
info->protect[i] = caddr[2] & 1;
}
/*
* Prevent writes to uninitialized FLASH.
*/
- if (info->flash_id != FLASH_UNKNOWN)
- {
+ if (info->flash_id != FLASH_UNKNOWN) {
caddr = (volatile unsigned char *)info->start[0];
*caddr = 0xF0; /* reset bank */
}
- return (info->size);
+ return info->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)
{
- volatile unsigned char *addr = (volatile unsigned char *)(info->start[0]);
+ volatile unsigned char *addr =
+ (volatile unsigned char *)(info->start[0]);
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");
- }
+ if (info->flash_id == FLASH_UNKNOWN)
+ printf("- missing\n");
+ else
+ printf("- no sectors to erase\n");
+
return 1;
}
if ((info->flash_id == FLASH_UNKNOWN) ||
(info->flash_id > FLASH_AMD_COMP)) {
- printf ("Can't erase unknown flash type - aborted\n");
+ printf("Can't erase unknown flash type - aborted\n");
return 1;
}
prot = 0;
- for (sect=s_first; sect<=s_last; ++sect) {
- if (info->protect[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",
+ printf("- Warning: %d protected sectors will not be erased!\n",
prot);
} else {
- printf ("\n");
+ printf("\n");
}
l_sect = -1;
addr[0x02AA] = 0x55;
/* Start erase on unprotected sectors */
- for (sect = s_first; sect<=s_last; sect++) {
+ for (sect = s_first; sect <= s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (volatile unsigned char *)(info->start[sect]);
addr[0] = 0x30;
enable_interrupts();
/* wait at least 80us - let's wait 1 ms */
- udelay (1000);
+ udelay(1000);
/*
* We wait for the last triggered sector
if (l_sect < 0)
goto DONE;
- start = get_timer (0);
+ start = get_timer(0);
last = start;
addr = (volatile unsigned char *)(info->start[l_sect]);
- while ((addr[0] & 0xFF) != 0xFF)
- {
- if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
- printf ("Timeout\n");
+ while ((addr[0] & 0xFF) != 0xFF) {
+
+ now = get_timer(start);
+
+ if (now > CONFIG_SYS_FLASH_ERASE_TOUT) {
+ printf("Timeout\n");
return 1;
}
/* show that we're waiting */
if ((now - last) > 1000) { /* every second */
- putc ('.');
+ putc('.');
last = now;
}
}
addr[0] = 0xF0; /* reset bank */
- printf (" done\n");
+ printf(" done\n");
return 0;
}
* 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 cp, wp, data;
int i, l, rc;
/*
* handle unaligned start bytes
*/
- if ((l = addr - wp) != 0) {
+ l = addr - wp;
+
+ if (l != 0) {
data = 0;
- for (i=0, cp=wp; i<l; ++i, ++cp) {
+ for (i = 0, cp = wp; i < l; ++i, ++cp)
data = (data << 8) | (*(uchar *)cp);
- }
- for (; i<4 && cnt>0; ++i) {
+
+ for (; i < 4 && cnt > 0; ++i) {
data = (data << 8) | *src++;
--cnt;
++cp;
}
- for (; cnt==0 && i<4; ++i, ++cp) {
+ for (; cnt == 0 && i < 4; ++i, ++cp)
data = (data << 8) | (*(uchar *)cp);
- }
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
+ rc = write_word(info, wp, data);
+
+ if (rc != 0)
+ return rc;
+
wp += 4;
}
*/
while (cnt >= 4) {
data = 0;
- for (i=0; i<4; ++i) {
+ for (i = 0; i < 4; ++i)
data = (data << 8) | *src++;
- }
- if ((rc = write_word(info, wp, data)) != 0) {
- return (rc);
- }
+
+ rc = write_word(info, wp, data);
+
+ if (rc != 0)
+ return rc;
+
wp += 4;
cnt -= 4;
}
- if (cnt == 0) {
- return (0);
- }
+ if (cnt == 0)
+ return 0;
/*
* handle unaligned tail bytes
*/
data = 0;
- for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
+ for (i = 0, cp = wp; i < 4 && cnt > 0; ++i, ++cp) {
data = (data << 8) | *src++;
--cnt;
}
- for (; i<4; ++i, ++cp) {
+ for (; i < 4; ++i, ++cp)
data = (data << 8) | (*(uchar *)cp);
- }
- return (write_word(info, wp, data));
+ return write_word(info, wp, data);
}
/*-----------------------------------------------------------------------
* 1 - write timeout
* 2 - Flash not erased
*/
-static int write_word (flash_info_t *info, ulong dest, ulong data)
+static int write_word(flash_info_t *info, ulong dest, ulong data)
{
- volatile unsigned char *addr = (volatile unsigned char*)(info->start[0]),
- *cdest,*cdata;
+ volatile unsigned char *cdest, *cdata;
+ volatile unsigned char *addr =
+ (volatile unsigned char *)(info->start[0]);
ulong start;
int flag, count = 4 ;
cdata = (volatile unsigned char *)&data ;
/* Check if Flash is (sufficiently) erased */
- if ((*((vu_long *)dest) & data) != data) {
- return (2);
- }
+ if ((*((vu_long *)dest) & data) != data)
+ return 2;
- while(count--)
- {
- /* Disable interrupts which might cause a timeout here */
- flag = disable_interrupts();
+ while (count--) {
- addr[0x0555] = 0xAA;
- addr[0x02AA] = 0x55;
- addr[0x0555] = 0xA0;
+ /* Disable interrupts which might cause a timeout here */
+ flag = disable_interrupts();
- *cdest = *cdata;
+ addr[0x0555] = 0xAA;
+ addr[0x02AA] = 0x55;
+ addr[0x0555] = 0xA0;
- /* re-enable interrupts if necessary */
- if (flag)
- enable_interrupts();
+ *cdest = *cdata;
+
+ /* re-enable interrupts if necessary */
+ if (flag)
+ enable_interrupts();
- /* data polling for D7 */
- start = get_timer (0);
- while ((*cdest ^ *cdata) & 0x80)
- {
- if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
- return (1);
+ /* data polling for D7 */
+ start = get_timer(0);
+ while ((*cdest ^ *cdata) & 0x80) {
+ if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
+ return 1;
}
- }
- cdata++ ;
- cdest++ ;
+ cdata++ ;
+ cdest++ ;
}
- return (0);
+ return 0;
}
-
-/*-----------------------------------------------------------------------
- */
projects / u-boot / commitdiff