Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-19 11:18:28 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/board/amcc/common/flash.c
Eugene OBrien d2f6800662 ppc4xx: Update AMCC Bamboo 440EP support 
Changed storage type of cfg_simulate_spd_eeprom to const
Changed storage type of gpio_tab to stack storage
(Cannot access global data declarations in .bss until afer code relocation)

Improved SDRAM tests to catch problems where data is not uniquely addressable
(e.g. incorrectly programmed SDRAM row or columns)

Added CONFIG_PROG_SDRAM_TLB to support Bamboo SIMM/DIMM modules
Fixed AM29LV320DT (OpCode Flash) sector map

Signed-off-by: Eugene OBrien <eugene.obrien@advantechamt.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2007-07-31 10:24:56 +02:00

955 lines
26 KiB
C
Raw Blame History

/*
* (C) Copyright 2004-2005
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* (C) Copyright 2002 Jun Gu <jung@artesyncp.com>
* Add support for Am29F016D and dynamic switch setting.
*
* 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
*/
/*
* Modified 4/5/2001
* Wait for completion of each sector erase command issued
* 4/5/2001
* Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
*/
#include <common.h>
#include <ppc4xx.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);
#ifdef CFG_FLASH_2ND_16BIT_DEV
static int write_word_1(flash_info_t * info, ulong dest, ulong data);
static int write_word_2(flash_info_t * info, ulong dest, ulong data);
static int flash_erase_1(flash_info_t * info, int s_first, int s_last);
static int flash_erase_2(flash_info_t * info, int s_first, int s_last);
static ulong flash_get_size_1(vu_long * addr, flash_info_t * info);
static ulong flash_get_size_2(vu_long * addr, flash_info_t * info);
#endif
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_STM:
printf("STM ");
break;
case FLASH_MAN_FUJ:
printf("FUJITSU ");
break;
case FLASH_MAN_SST:
printf("SST ");
break;
case FLASH_MAN_MX:
printf ("MACRONIX ");
break;
default:
printf("Unknown Vendor ");
break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AM040:
printf("AM29F040 (512 Kbit, uniform sector size)\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_AMD016:
printf("AM29F016D (16 Mbit, uniform sector size)\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;
case FLASH_AM033C:
printf("AM29LV033C (32 Mbit, top boot 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;
case FLASH_MXLV320T:
printf ("MXLV320T (32 Mbit, top sector)\n");
break;
default:
printf("Unknown Chip Type\n");
break;
}
printf(" Size: %ld KB in %d Sectors\n",
info->size >> 10, info->sector_count);
printf(" Sector Start Addresses:");
for (i = 0; i < info->sector_count; ++i) {
/*
* 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 ");
printf(" %08lX%s%s",
info->start[i],
erased ? " E" : " ", info->protect[i] ? "RO " : " ");
}
printf("\n");
return;
}
/*
* The following code cannot be run from FLASH!
*/
#ifdef CFG_FLASH_2ND_16BIT_DEV
static ulong flash_get_size(vu_long * addr, flash_info_t * info)
{
/* bit 0 used for big flash marking */
if ((ulong)addr & 0x1) {
return flash_get_size_2((vu_long *)((ulong)addr & 0xfffffffe), info);
} else {
return flash_get_size_1(addr, info);
}
}
static ulong flash_get_size_1(vu_long * addr, flash_info_t * info)
#else
static ulong flash_get_size(vu_long * addr, flash_info_t * info)
#endif
{
short i;
CFG_FLASH_WORD_SIZE value;
ulong base = (ulong) addr;
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
/* 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;
udelay(1000);
value = addr2[0];
DEBUGF("FLASH MANUFACT: %x\n", value);
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[1]; /* device ID */
DEBUGF("\nFLASH DEVICEID: %x\n", value);
switch (value) {
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_F040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) STM_ID_M29W040B:
info->flash_id += FLASH_AM040;
info->sector_count = 8;
info->size = 0x0080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_F016D:
info->flash_id += FLASH_AMD016;
info->sector_count = 32;
info->size = 0x00200000; /* => 2 MiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV033C:
info->flash_id += FLASH_AMDLV033C;
info->sector_count = 64;
info->size = 0x00400000; /* => 4 MiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400T:
info->flash_id += FLASH_AM400T;
info->sector_count = 11;
info->size = 0x00080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV400B:
info->flash_id += FLASH_AM400B;
info->sector_count = 11;
info->size = 0x00080000; /* => 512 KiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800T:
info->flash_id += FLASH_AM800T;
info->sector_count = 19;
info->size = 0x00100000; /* => 1 MiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV800B:
info->flash_id += FLASH_AM800B;
info->sector_count = 19;
info->size = 0x00100000; /* => 1 MiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160T:
info->flash_id += FLASH_AM160T;
info->sector_count = 35;
info->size = 0x00200000; /* => 2 MiB */
break;
case (CFG_FLASH_WORD_SIZE) AMD_ID_LV160B:
info->flash_id += FLASH_AM160B;
info->sector_count = 35;
info->size = 0x00200000; /* => 2 MiB */
break;
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_AM040) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
for (i = 0; i < info->sector_count; i++)
info->start[i] = base + (i * 0x00010000);
} 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]);
/* For AMD29033C flash we need to resend the command of *
* reading flash protection for upper 8 Mb of flash */
if (i == 32) {
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
}
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
info->protect[i] = 0;
else
info->protect[i] = addr2[2] & 1;
}
/* issue bank reset to return to read mode */
addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
return (info->size);
}
static int wait_for_DQ7_1(flash_info_t * info, int sect)
{
ulong start, now, last;
volatile CFG_FLASH_WORD_SIZE *addr =
(CFG_FLASH_WORD_SIZE *) (info->start[sect]);
start = get_timer(0);
last = start;
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;
}
}
return 0;
}
#ifdef CFG_FLASH_2ND_16BIT_DEV
int flash_erase(flash_info_t * info, int s_first, int s_last)
{
if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
return flash_erase_2(info, s_first, s_last);
} else {
return flash_erase_1(info, s_first, s_last);
}
}
static int flash_erase_1(flash_info_t * info, int s_first, int s_last)
#else
int flash_erase(flash_info_t * info, int s_first, int s_last)
#endif
{
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;
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 {
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;
/*
* Wait for each sector to complete, it's more
* reliable. According to AMD Spec, you must
* issue all erase commands within a specified
* timeout. This has been seen to fail, especially
* if printf()s are included (for debug)!!
*/
wait_for_DQ7_1(info, sect);
}
}
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
/* wait at least 80us - let's wait 1 ms */
udelay(1000);
/* 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) {
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, 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, 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, data));
}
/*-----------------------------------------------------------------------
* Copy memory to flash, returns:
* 0 - OK
* 1 - write timeout
* 2 - Flash not erased
*/
#ifdef CFG_FLASH_2ND_16BIT_DEV
static int write_word(flash_info_t * info, ulong dest, ulong data)
{
if (((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320B) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_AM320T) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_MXLV320T) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_STMW320DT)) {
return write_word_2(info, dest, data);
} else {
return write_word_1(info, dest, data);
}
}
static int write_word_1(flash_info_t * info, ulong dest, ulong data)
#else
static int write_word(flash_info_t * info, ulong dest, ulong data)
#endif
{
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 i;
/* Check if Flash is (sufficiently) erased */
if ((*((vu_long *)dest) & data) != data) {
return (2);
}
for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
int flag;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
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);
}
#ifdef CFG_FLASH_2ND_16BIT_DEV
#undef CFG_FLASH_WORD_SIZE
#define CFG_FLASH_WORD_SIZE unsigned short
/*
* The following code cannot be run from FLASH!
*/
static ulong flash_get_size_2(vu_long * addr, flash_info_t * info)
{
short i;
int n;
CFG_FLASH_WORD_SIZE value;
ulong base = (ulong) addr;
volatile CFG_FLASH_WORD_SIZE *addr2 = (CFG_FLASH_WORD_SIZE *) addr;
DEBUGF("FLASH ADDR: %08x\n", (unsigned)addr);
/* 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;
udelay(1000);
value = addr2[0];
DEBUGF("FLASH MANUFACT: %x\n", value);
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;
case (CFG_FLASH_WORD_SIZE) MX_MANUFACT:
info->flash_id = FLASH_MAN_MX;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
return (0); /* no or unknown flash */
}
value = addr2[1]; /* device ID */
DEBUGF("\nFLASH DEVICEID: %x\n", value);
switch (value) {
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320T:
info->flash_id += FLASH_AM320T;
info->sector_count = 71;
info->size = 0x00400000; break; /* => 4 MiB */
case (CFG_FLASH_WORD_SIZE)AMD_ID_LV320B:
info->flash_id += FLASH_AM320B;
info->sector_count = 71;
info->size = 0x00400000; break; /* => 4 MiB */
case (CFG_FLASH_WORD_SIZE)STM_ID_29W320DT:
info->flash_id += FLASH_STMW320DT;
info->sector_count = 67;
info->size = 0x00400000; break; /* => 4 MiB */
case (CFG_FLASH_WORD_SIZE)MX_ID_LV320T:
info->flash_id += FLASH_MXLV320T;
info->sector_count = 71;
info->size = 0x00400000;
break; /* => 4 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_AM040) ||
((info->flash_id & FLASH_TYPEMASK) == FLASH_AMD016)) {
for (i = 0; i < info->sector_count; i++)
info->start[i] = base + (i * 0x00010000);
} 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_TYPEMASK) == FLASH_MXLV320T) {
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00002000;
info->start[i--] = base + info->size - 0x00004000;
info->start[i--] = base + info->size - 0x00006000;
info->start[i--] = base + info->size - 0x00008000;
info->start[i--] = base + info->size - 0x0000a000;
info->start[i--] = base + info->size - 0x0000c000;
info->start[i--] = base + info->size - 0x0000e000;
info->start[i--] = base + info->size - 0x00010000;
for (; i >= 0; i--)
info->start[i] = base + i * 0x00010000;
} else {
if (info->flash_id & FLASH_BTYPE) {
/* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00002000;
info->start[2] = base + 0x00004000;
info->start[3] = base + 0x00006000;
info->start[4] = base + 0x00008000;
info->start[5] = base + 0x0000a000;
info->start[6] = base + 0x0000c000;
info->start[7] = base + 0x0000e000;
for (i = 8; i < info->sector_count; i++) {
info->start[i] =
base + ((i-7) * 0x00010000);
}
} else {
/* set sector offsets for top boot block type */
i = info->sector_count - 1;
info->start[i--] = base + info->size - 0x00002000;
info->start[i--] = base + info->size - 0x00004000;
info->start[i--] = base + info->size - 0x00006000;
info->start[i--] = base + info->size - 0x00008000;
info->start[i--] = base + info->size - 0x0000a000;
info->start[i--] = base + info->size - 0x0000c000;
info->start[i--] = base + info->size - 0x0000e000;
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]);
/* For AMD29033C flash we need to resend the command of *
* reading flash protection for upper 8 Mb of flash */
if (i == 32) {
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0xAAAAAAAA;
addr2[CFG_FLASH_ADDR1] = (CFG_FLASH_WORD_SIZE) 0x55555555;
addr2[CFG_FLASH_ADDR0] = (CFG_FLASH_WORD_SIZE) 0x90909090;
}
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST)
info->protect[i] = 0;
else
info->protect[i] = addr2[2] & 1;
}
/* issue bank reset to return to read mode */
addr2[0] = (CFG_FLASH_WORD_SIZE) 0x00F000F0;
return (info->size);
}
static int wait_for_DQ7_2(flash_info_t * info, int sect)
{
ulong start, now, last;
volatile CFG_FLASH_WORD_SIZE *addr =
(CFG_FLASH_WORD_SIZE *) (info->start[sect]);
start = get_timer(0);
last = start;
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;
}
}
return 0;
}
static int flash_erase_2(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;
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 {
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;
/*
* Wait for each sector to complete, it's more
* reliable. According to AMD Spec, you must
* issue all erase commands within a specified
* timeout. This has been seen to fail, especially
* if printf()s are included (for debug)!!
*/
wait_for_DQ7_2(info, sect);
}
}
/* re-enable interrupts if necessary */
if (flag)
enable_interrupts();
/* wait at least 80us - let's wait 1 ms */
udelay(1000);
/* 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;
}
static int write_word_2(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 i;
/* Check if Flash is (sufficiently) erased */
if ((*((vu_long *)dest) & data) != data) {
return (2);
}
for (i = 0; i < 4 / sizeof(CFG_FLASH_WORD_SIZE); i++) {
int flag;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
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);
}
#endif /* CFG_FLASH_2ND_16BIT_DEV */
Reference in a new issue View git blame Copy permalink