mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-13 06:36:16 +09:00
700a0c648d
Old, obsolete and duplicated code was cleaned up and replace by the new partitioning method. There are two possible approaches now: * define a single, static partition * use mtdparts command line option and dynamic partitioning Default is static partitioning.
486 lines
11 KiB
C
486 lines
11 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
|
|
*
|
|
* (C) Copyright 2000-2004
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <linux/byteorder/swab.h>
|
|
|
|
#define SWAP(x) __swab32(x)
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
|
|
|
|
/* 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);
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
unsigned long flash_init (void)
|
|
{
|
|
int i;
|
|
ulong size = 0;
|
|
|
|
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
|
|
switch (i) {
|
|
case 0:
|
|
flash_get_size ((long *) PHYS_FLASH_1, &flash_info[i]);
|
|
flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
|
|
break;
|
|
case 1:
|
|
flash_get_size ((long *) PHYS_FLASH_2, &flash_info[i]);
|
|
flash_get_offsets (PHYS_FLASH_2, &flash_info[i]);
|
|
break;
|
|
default:
|
|
panic ("configured too many flash banks!\n");
|
|
break;
|
|
}
|
|
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;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static void flash_get_offsets (ulong base, flash_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) return;
|
|
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_AMD) {
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE);
|
|
info->protect[i] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_print_info (flash_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
printf ("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;
|
|
default: printf ("Unknown Vendor "); break;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
case FLASH_AMLV128U: printf ("AM29LV128ML (128Mbit, uniform sector size)\n");
|
|
break;
|
|
case FLASH_AMLV320U: printf ("AM29LV320ML (32Mbit, uniform sector size)\n");
|
|
break;
|
|
case FLASH_AMLV640U: printf ("AM29LV640ML (64Mbit, uniform sector size)\n");
|
|
break;
|
|
case FLASH_AMLV320B: printf ("AM29LV320MB (32Mbit, bottom boot sect)\n");
|
|
break;
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* The following code cannot be run from FLASH!
|
|
*/
|
|
static ulong flash_get_size (vu_long *addr, flash_info_t *info)
|
|
{
|
|
short i;
|
|
ulong value;
|
|
ulong base = (ulong)addr;
|
|
|
|
/* Write auto select command: read Manufacturer ID */
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
addr[0x0555] = 0x00900090;
|
|
|
|
value = addr[0];
|
|
|
|
debug ("Manuf. ID @ 0x%08lx: 0x%08lx\n", (ulong)addr, value);
|
|
|
|
switch (value) {
|
|
case AMD_MANUFACT:
|
|
debug ("Manufacturer: AMD\n");
|
|
info->flash_id = FLASH_MAN_AMD;
|
|
break;
|
|
case FUJ_MANUFACT:
|
|
debug ("Manufacturer: FUJITSU\n");
|
|
info->flash_id = FLASH_MAN_FUJ;
|
|
break;
|
|
default:
|
|
debug ("Manufacturer: *** unknown ***\n");
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
return (0); /* no or unknown flash */
|
|
}
|
|
|
|
value = addr[1]; /* device ID */
|
|
|
|
debug ("Device ID @ 0x%08lx: 0x%08lx\n", (ulong)(&addr[1]), value);
|
|
|
|
switch (value) {
|
|
|
|
case AMD_ID_MIRROR:
|
|
debug ("Mirror Bit flash: addr[14] = %08lX addr[15] = %08lX\n",
|
|
addr[14], addr[15]);
|
|
switch(addr[14]) {
|
|
case AMD_ID_LV128U_2:
|
|
if (addr[15] != AMD_ID_LV128U_3) {
|
|
debug ("Chip: AMLV128U -> unknown\n");
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
} else {
|
|
debug ("Chip: AMLV128U\n");
|
|
info->flash_id += FLASH_AMLV128U;
|
|
info->sector_count = 256;
|
|
info->size = 0x02000000;
|
|
}
|
|
break; /* => 32 MB */
|
|
case AMD_ID_LV640U_2:
|
|
if (addr[15] != AMD_ID_LV640U_3) {
|
|
debug ("Chip: AMLV640U -> unknown\n");
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
} else {
|
|
debug ("Chip: AMLV640U\n");
|
|
info->flash_id += FLASH_AMLV640U;
|
|
info->sector_count = 128;
|
|
info->size = 0x01000000;
|
|
}
|
|
break; /* => 16 MB */
|
|
case AMD_ID_LV320B_2:
|
|
if (addr[15] != AMD_ID_LV320B_3) {
|
|
debug ("Chip: AMLV320B -> unknown\n");
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
} else {
|
|
debug ("Chip: AMLV320B\n");
|
|
info->flash_id += FLASH_AMLV320B;
|
|
info->sector_count = 71;
|
|
info->size = 0x00800000;
|
|
}
|
|
break; /* => 8 MB */
|
|
default:
|
|
debug ("Chip: *** unknown ***\n");
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return (0); /* => no or unknown flash */
|
|
}
|
|
|
|
/* set up sector start address table */
|
|
switch (value) {
|
|
case AMD_ID_MIRROR:
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
/* only known types here - no default */
|
|
case FLASH_AMLV128U:
|
|
case FLASH_AMLV640U:
|
|
case FLASH_AMLV320U:
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
info->start[i] = base;
|
|
base += 0x20000;
|
|
}
|
|
break;
|
|
case FLASH_AMLV320B:
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
info->start[i] = base;
|
|
/*
|
|
* The first 8 sectors are 8 kB,
|
|
* all the other ones are 64 kB
|
|
*/
|
|
base += (i < 8)
|
|
? 2 * ( 8 << 10)
|
|
: 2 * (64 << 10);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return (0);
|
|
break;
|
|
}
|
|
|
|
#if 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 */
|
|
addr = (volatile unsigned long *)(info->start[i]);
|
|
info->protect[i] = addr[2] & 1;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Prevent writes to uninitialized FLASH.
|
|
*/
|
|
if (info->flash_id != FLASH_UNKNOWN) {
|
|
addr = (volatile unsigned long *)info->start[0];
|
|
|
|
*addr = 0x00F000F0; /* reset bank */
|
|
}
|
|
|
|
return (info->size);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
vu_long *addr = (vu_long*)(info->start[0]);
|
|
int flag, prot, sect, l_sect;
|
|
ulong start, now, last;
|
|
|
|
debug ("flash_erase: first: %d last: %d\n", s_first, s_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 ((info->flash_id == FLASH_UNKNOWN) ||
|
|
(info->flash_id > FLASH_AMD_COMP)) {
|
|
printf ("Can't erase unknown flash type %08lx - aborted\n",
|
|
info->flash_id);
|
|
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();
|
|
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
addr[0x0555] = 0x00800080;
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect<=s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
addr = (vu_long*)(info->start[sect]);
|
|
addr[0] = 0x00300030;
|
|
l_sect = sect;
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
addr = (vu_long*)(info->start[l_sect]);
|
|
while ((addr[0] & 0x00800080) != 0x00800080) {
|
|
if ((now = get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
|
|
printf ("Timeout\n");
|
|
return 1;
|
|
}
|
|
/* show that we're waiting */
|
|
if ((now - last) > 100000) { /* every second */
|
|
putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
DONE:
|
|
/* reset to read mode */
|
|
addr = (volatile unsigned long *)info->start[0];
|
|
addr[0] = 0x00F000F0; /* reset bank */
|
|
|
|
printf (" done\n");
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
|
|
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|
{
|
|
ulong cp, wp, data;
|
|
int i, l, 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);
|
|
}
|
|
for (; i<4 && cnt>0; ++i) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt==0 && i<4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
if ((rc = write_word(info, wp, SWAP(data))) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = 0;
|
|
for (i=0; i<4; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
if ((rc = write_word(info, wp, SWAP(data))) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
cnt -= 4;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
|
|
data = (data << 8) | *src++;
|
|
--cnt;
|
|
}
|
|
for (; i<4; ++i, ++cp) {
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
return (write_word(info, wp, SWAP(data)));
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a word to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_word (flash_info_t *info, ulong dest, ulong data)
|
|
{
|
|
vu_long *addr = (vu_long*)(info->start[0]);
|
|
ulong start;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((vu_long *)dest) & data) != data) {
|
|
return (2);
|
|
}
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
addr[0x0555] = 0x00AA00AA;
|
|
addr[0x02AA] = 0x00550055;
|
|
addr[0x0555] = 0x00A000A0;
|
|
|
|
*((vu_long *)dest) = data;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
while ((*((vu_long *)dest) & 0x00800080) != (data & 0x00800080)) {
|
|
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|