mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-11 15:37:23 +00:00
e55ca7e262
Update for PPChameleon board: - support for SysClk @ 25MHz - support for Silicon Motion SM712 VGA controller - some clean ups
706 lines
19 KiB
C
706 lines
19 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
|
|
*
|
|
* 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 <asm/processor.h>
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Functions
|
|
*/
|
|
static int write_word (flash_info_t *info, ulong dest, ulong data);
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static void flash_get_offsets (ulong base, flash_info_t *info)
|
|
{
|
|
int i;
|
|
short n;
|
|
|
|
/* set up sector start address table */
|
|
if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U)) {
|
|
for (i = 0; i < info->sector_count; i++)
|
|
info->start[i] = base + (i * 0x00010000);
|
|
} else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324B)) {
|
|
/* set sector offsets for bottom boot block type */
|
|
for (i=0; i<8; ++i) { /* 8 x 8k boot sectors */
|
|
info->start[i] = base;
|
|
base += 8 << 10;
|
|
}
|
|
while (i < info->sector_count) { /* 64k regular sectors */
|
|
info->start[i] = base;
|
|
base += 64 << 10;
|
|
++i;
|
|
}
|
|
} else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324T)) {
|
|
/* set sector offsets for top boot block type */
|
|
base += info->size;
|
|
i = info->sector_count;
|
|
for (n=0; n<8; ++n) { /* 8 x 8k boot sectors */
|
|
base -= 8 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
}
|
|
while (i > 0) { /* 64k regular sectors */
|
|
base -= 64 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
}
|
|
} else {
|
|
if (info->flash_id & FLASH_BTYPE) {
|
|
/* set sector offsets for bottom boot block type */
|
|
info->start[0] = base + 0x00000000;
|
|
info->start[1] = base + 0x00004000;
|
|
info->start[2] = base + 0x00006000;
|
|
info->start[3] = base + 0x00008000;
|
|
for (i = 4; i < info->sector_count; i++) {
|
|
info->start[i] = base + (i * 0x00010000) - 0x00030000;
|
|
}
|
|
} else {
|
|
/* set sector offsets for top boot block type */
|
|
i = info->sector_count - 1;
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00006000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
for (; i >= 0; i--) {
|
|
info->start[i] = base + i * 0x00010000;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_print_info (flash_info_t *info)
|
|
{
|
|
int i;
|
|
int k;
|
|
int size;
|
|
int erased;
|
|
volatile unsigned long *flash;
|
|
|
|
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;
|
|
case FLASH_MAN_SST: printf ("SST "); break;
|
|
case FLASH_MAN_STM: printf ("ST "); break;
|
|
default: printf ("Unknown Vendor "); break;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
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_AM320T: printf ("AM29LV320T (32 M, top sector)\n");
|
|
break;
|
|
case FLASH_AM320B: printf ("AM29LV320B (32 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AMDL322T: printf ("AM29DL322T (32 M, top sector)\n");
|
|
break;
|
|
case FLASH_AMDL322B: printf ("AM29DL322B (32 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AMDL323T: printf ("AM29DL323T (32 M, top sector)\n");
|
|
break;
|
|
case FLASH_AMDL323B: printf ("AM29DL323B (32 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AM640U: printf ("AM29LV640D (64 M, uniform sector)\n");
|
|
break;
|
|
case FLASH_SST800A: printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
|
|
break;
|
|
case FLASH_SST160A: printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
|
|
break;
|
|
case FLASH_STMW320DT: printf ("M29W320DT (32 M, top sector)\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) {
|
|
#ifdef CFG_FLASH_EMPTY_INFO
|
|
/*
|
|
* Check if whole sector is erased
|
|
*/
|
|
if (i != (info->sector_count-1))
|
|
size = info->start[i+1] - info->start[i];
|
|
else
|
|
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;
|
|
}
|
|
}
|
|
|
|
if ((i % 5) == 0)
|
|
printf ("\n ");
|
|
/* print empty and read-only info */
|
|
printf (" %08lX%s%s",
|
|
info->start[i],
|
|
erased ? " E" : " ",
|
|
info->protect[i] ? "RO " : " ");
|
|
#else
|
|
if ((i % 5) == 0)
|
|
printf ("\n ");
|
|
printf (" %08lX%s",
|
|
info->start[i],
|
|
info->protect[i] ? " (RO)" : " ");
|
|
#endif
|
|
|
|
}
|
|
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;
|
|
short n;
|
|
CFG_FLASH_WORD_SIZE value;
|
|
ulong base = (ulong)addr;
|
|
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *)addr;
|
|
|
|
debug("[%s, %d] Entering ...\n", __FUNCTION__, __LINE__);
|
|
|
|
/* Write auto select command: read Manufacturer ID */
|
|
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
|
|
addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
|
|
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00900090;
|
|
|
|
value = addr2[CFG_FLASH_READ0];
|
|
|
|
switch (value) {
|
|
case (CFG_FLASH_WORD_SIZE)AMD_MANUFACT:
|
|
info->flash_id = FLASH_MAN_AMD;
|
|
break;
|
|
case (CFG_FLASH_WORD_SIZE)FUJ_MANUFACT:
|
|
info->flash_id = FLASH_MAN_FUJ;
|
|
break;
|
|
case (CFG_FLASH_WORD_SIZE)SST_MANUFACT:
|
|
info->flash_id = FLASH_MAN_SST;
|
|
break;
|
|
case (CFG_FLASH_WORD_SIZE)STM_MANUFACT:
|
|
info->flash_id = FLASH_MAN_STM;
|
|
break;
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
return (0); /* no or unknown flash */
|
|
}
|
|
|
|
value = addr2[CFG_FLASH_READ1]; /* device ID */
|
|
|
|
switch (value) {
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV400T:
|
|
info->flash_id += FLASH_AM400T;
|
|
info->sector_count = 11;
|
|
info->size = 0x00080000;
|
|
break; /* => 0.5 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV400B:
|
|
info->flash_id += FLASH_AM400B;
|
|
info->sector_count = 11;
|
|
info->size = 0x00080000;
|
|
break; /* => 0.5 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV800T:
|
|
info->flash_id += FLASH_AM800T;
|
|
info->sector_count = 19;
|
|
info->size = 0x00100000;
|
|
break; /* => 1 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV800B:
|
|
info->flash_id += FLASH_AM800B;
|
|
info->sector_count = 19;
|
|
info->size = 0x00100000;
|
|
break; /* => 1 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV160T:
|
|
info->flash_id += FLASH_AM160T;
|
|
info->sector_count = 35;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV160B:
|
|
info->flash_id += FLASH_AM160B;
|
|
info->sector_count = 35;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)STM_ID_29W320DT:
|
|
info->flash_id += FLASH_STMW320DT;
|
|
info->sector_count = 67;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320T:
|
|
info->flash_id += FLASH_AM320T;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320B:
|
|
info->flash_id += FLASH_AM320B;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_DL322T:
|
|
info->flash_id += FLASH_AMDL322T;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_DL322B:
|
|
info->flash_id += FLASH_AMDL322B;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_DL323T:
|
|
info->flash_id += FLASH_AMDL323T;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_DL323B:
|
|
info->flash_id += FLASH_AMDL323B;
|
|
info->sector_count = 71;
|
|
info->size = 0x00400000; break; /* => 4 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV640U:
|
|
info->flash_id += FLASH_AM640U;
|
|
info->sector_count = 128;
|
|
info->size = 0x00800000; break; /* => 8 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)SST_ID_xF800A:
|
|
info->flash_id += FLASH_SST800A;
|
|
info->sector_count = 16;
|
|
info->size = 0x00100000;
|
|
break; /* => 1 MB */
|
|
|
|
case (CFG_FLASH_WORD_SIZE)SST_ID_xF160A:
|
|
info->flash_id += FLASH_SST160A;
|
|
info->sector_count = 32;
|
|
info->size = 0x00200000;
|
|
break; /* => 2 MB */
|
|
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return (0); /* => no or unknown flash */
|
|
|
|
}
|
|
|
|
/* set up sector start address table */
|
|
if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM640U)) {
|
|
for (i = 0; i < info->sector_count; i++)
|
|
info->start[i] = base + (i * 0x00010000);
|
|
} else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324B)) {
|
|
/* set sector offsets for bottom boot block type */
|
|
for (i=0; i<8; ++i) { /* 8 x 8k boot sectors */
|
|
info->start[i] = base;
|
|
base += 8 << 10;
|
|
}
|
|
while (i < info->sector_count) { /* 64k regular sectors */
|
|
info->start[i] = base;
|
|
base += 64 << 10;
|
|
++i;
|
|
}
|
|
} else if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL322T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL323T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
|
|
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMDL324T)) {
|
|
/* set sector offsets for top boot block type */
|
|
base += info->size;
|
|
i = info->sector_count;
|
|
for (n=0; n<8; ++n) { /* 8 x 8k boot sectors */
|
|
base -= 8 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
}
|
|
while (i > 0) { /* 64k regular sectors */
|
|
base -= 64 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
}
|
|
} else if ((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT) {
|
|
/* set sector offsets for top boot block type */
|
|
base += info->size;
|
|
i = info->sector_count;
|
|
/* 1 x 16k boot sector */
|
|
base -= 16 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
/* 2 x 8k boot sectors */
|
|
for (n=0; n<2; ++n) {
|
|
base -= 8 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
}
|
|
/* 1 x 32k boot sector */
|
|
base -= 32 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
|
|
while (i > 0) { /* 64k regular sectors */
|
|
base -= 64 << 10;
|
|
--i;
|
|
info->start[i] = base;
|
|
}
|
|
} else {
|
|
if (info->flash_id & FLASH_BTYPE) {
|
|
/* set sector offsets for bottom boot block type */
|
|
info->start[0] = base + 0x00000000;
|
|
info->start[1] = base + 0x00004000;
|
|
info->start[2] = base + 0x00006000;
|
|
info->start[3] = base + 0x00008000;
|
|
for (i = 4; i < info->sector_count; i++) {
|
|
info->start[i] = base + (i * 0x00010000) - 0x00030000;
|
|
}
|
|
} else {
|
|
/* set sector offsets for top boot block type */
|
|
i = info->sector_count - 1;
|
|
info->start[i--] = base + info->size - 0x00004000;
|
|
info->start[i--] = base + info->size - 0x00006000;
|
|
info->start[i--] = base + info->size - 0x00008000;
|
|
for (; i >= 0; i--) {
|
|
info->start[i] = base + i * 0x00010000;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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 */
|
|
addr2 = (volatile CFG_FLASH_WORD_SIZE *)(info->start[i]);
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
|
|
info->protect[i] = 0;
|
|
else
|
|
info->protect[i] = addr2[CFG_FLASH_READ2] & 1;
|
|
}
|
|
|
|
/*
|
|
* Prevent writes to uninitialized FLASH.
|
|
*/
|
|
if (info->flash_id != FLASH_UNKNOWN) {
|
|
addr2 = (CFG_FLASH_WORD_SIZE *)info->start[0];
|
|
*addr2 = (CFG_FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
|
|
}
|
|
|
|
return (info->size);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
volatile CFG_FLASH_WORD_SIZE *addr = (CFG_FLASH_WORD_SIZE *)(info->start[0]);
|
|
volatile CFG_FLASH_WORD_SIZE *addr2;
|
|
int flag, prot, sect, l_sect;
|
|
ulong start, now, last;
|
|
int i;
|
|
|
|
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) {
|
|
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]) {
|
|
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();
|
|
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect<=s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
addr2 = (CFG_FLASH_WORD_SIZE *)(info->start[sect]);
|
|
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00800080;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE)0x00500050; /* block erase */
|
|
for (i=0; i<50; i++)
|
|
udelay(1000); /* wait 1 ms */
|
|
} else {
|
|
if (sect == s_first) {
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00800080;
|
|
addr[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
|
|
addr[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
|
|
}
|
|
addr2[0] = (CFG_FLASH_WORD_SIZE)0x00300030; /* sector erase */
|
|
}
|
|
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 = (CFG_FLASH_WORD_SIZE *)(info->start[l_sect]);
|
|
while ((addr[0] & (CFG_FLASH_WORD_SIZE)0x00800080) != (CFG_FLASH_WORD_SIZE)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 */
|
|
putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
DONE:
|
|
/* reset to read mode */
|
|
addr = (CFG_FLASH_WORD_SIZE *)info->start[0];
|
|
addr[0] = (CFG_FLASH_WORD_SIZE)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) {
|
|
#ifdef CONFIG_B2
|
|
data = data | ((*(uchar *)cp)<<(8*i));
|
|
#else
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
#endif
|
|
}
|
|
for (; i<4 && cnt>0; ++i) {
|
|
#ifdef CONFIG_B2
|
|
data = data | ((*src++)<<(8*i));
|
|
#else
|
|
data = (data << 8) | *src++;
|
|
#endif
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt==0 && i<4; ++i, ++cp) {
|
|
#ifdef CONFIG_B2
|
|
data = data | ((*(uchar *)cp)<<(8*i));
|
|
#else
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
#endif
|
|
}
|
|
|
|
if ((rc = write_word(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = 0;
|
|
#ifdef CONFIG_B2
|
|
data = (*(ulong*)src);
|
|
src += 4;
|
|
#else
|
|
for (i=0; i<4; ++i) {
|
|
data = (data << 8) | *src++;
|
|
}
|
|
#endif
|
|
if ((rc = write_word(info, wp, 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) {
|
|
#ifdef CONFIG_B2
|
|
data = data | ((*src++)<<(8*i));
|
|
#else
|
|
data = (data << 8) | *src++;
|
|
#endif
|
|
--cnt;
|
|
}
|
|
for (; i<4; ++i, ++cp) {
|
|
#ifdef CONFIG_B2
|
|
data = data | ((*(uchar *)cp)<<(8*i));
|
|
#else
|
|
data = (data << 8) | (*(uchar *)cp);
|
|
#endif
|
|
}
|
|
|
|
return (write_word(info, wp, 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)
|
|
{
|
|
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *)(info->start[0]);
|
|
volatile CFG_FLASH_WORD_SIZE *dest2 = (CFG_FLASH_WORD_SIZE *)dest;
|
|
volatile CFG_FLASH_WORD_SIZE *data2 = (CFG_FLASH_WORD_SIZE *)&data;
|
|
ulong start;
|
|
int flag;
|
|
int i;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*((volatile ulong *)dest) & data) != data) {
|
|
return (2);
|
|
}
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
for (i=0; i<4/sizeof(CFG_FLASH_WORD_SIZE); i++)
|
|
{
|
|
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00AA00AA;
|
|
addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE)0x00550055;
|
|
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE)0x00A000A0;
|
|
|
|
dest2[i] = data2[i];
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
while ((dest2[i] & (CFG_FLASH_WORD_SIZE)0x00800080) !=
|
|
(data2[i] & (CFG_FLASH_WORD_SIZE)0x00800080)) {
|
|
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|