upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
486 lines
11 KiB
486 lines
11 KiB
/*
|
|
* (C) Copyright 2001
|
|
* 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 <mpc824x.h>
|
|
#include <asm/processor.h>
|
|
|
|
#if defined(CFG_ENV_IS_IN_FLASH)
|
|
# ifndef CFG_ENV_ADDR
|
|
# define CFG_ENV_ADDR (CFG_FLASH_BASE + CFG_ENV_OFFSET)
|
|
# endif
|
|
# ifndef CFG_ENV_SIZE
|
|
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
|
|
# endif
|
|
# ifndef CFG_ENV_SECT_SIZE
|
|
# define CFG_ENV_SECT_SIZE CFG_ENV_SIZE
|
|
# endif
|
|
#endif
|
|
|
|
#define FLASH_BANK_SIZE 0x800000
|
|
#define MAIN_SECT_SIZE 0x40000
|
|
#define PARAM_SECT_SIZE 0x8000
|
|
|
|
#define BOARD_CTRL_REG 0xFE800013
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
|
|
|
|
static int write_data (flash_info_t *info, ulong dest, ulong *data);
|
|
static void write_via_fpu(vu_long *addr, ulong *data);
|
|
static __inline__ unsigned long get_msr(void);
|
|
static __inline__ void set_msr(unsigned long msr);
|
|
|
|
/*---------------------------------------------------------------------*/
|
|
#undef DEBUG_FLASH
|
|
|
|
/*---------------------------------------------------------------------*/
|
|
#ifdef DEBUG_FLASH
|
|
#define DEBUGF(fmt,args...) printf(fmt ,##args)
|
|
#else
|
|
#define DEBUGF(fmt,args...)
|
|
#endif
|
|
/*---------------------------------------------------------------------*/
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
unsigned long flash_init(void)
|
|
{
|
|
int i, j;
|
|
ulong size = 0;
|
|
volatile unsigned char *bcr = (volatile unsigned char *)(BOARD_CTRL_REG);
|
|
|
|
DEBUGF("Write protect was: 0x%02X\n", *bcr);
|
|
*bcr &= 0x1; /* FWPT must be 0 */
|
|
*bcr |= 0x6; /* FWP0 = FWP1 = 1 */
|
|
DEBUGF("Write protect is: 0x%02X\n", *bcr);
|
|
|
|
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
|
|
vu_long *addr = (vu_long *)(CFG_FLASH_BASE + i * FLASH_BANK_SIZE);
|
|
|
|
addr[0] = 0x00900090;
|
|
|
|
DEBUGF ("Flash bank # %d:\n"
|
|
"\tManuf. ID @ 0x%08lX: 0x%08lX\n"
|
|
"\tDevice ID @ 0x%08lX: 0x%08lX\n",
|
|
i,
|
|
(ulong)(&addr[0]), addr[0],
|
|
(ulong)(&addr[2]), addr[2]);
|
|
|
|
if ((addr[0] == addr[1]) && (addr[0] == INTEL_MANUFACT) &&
|
|
(addr[2] == addr[3]) && (addr[2] == INTEL_ID_28F160F3B))
|
|
{
|
|
flash_info[i].flash_id = (FLASH_MAN_INTEL & FLASH_VENDMASK) |
|
|
(INTEL_ID_28F160F3B & FLASH_TYPEMASK);
|
|
} else {
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
addr[0] = 0xFFFFFFFF;
|
|
goto Done;
|
|
}
|
|
|
|
DEBUGF ("flash_id = 0x%08lX\n", flash_info[i].flash_id);
|
|
|
|
addr[0] = 0xFFFFFFFF;
|
|
|
|
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);
|
|
for (j = 0; j < flash_info[i].sector_count; j++) {
|
|
if (j <= 7) {
|
|
flash_info[i].start[j] = CFG_FLASH_BASE +
|
|
i * FLASH_BANK_SIZE +
|
|
j * PARAM_SECT_SIZE;
|
|
} else {
|
|
flash_info[i].start[j] = CFG_FLASH_BASE +
|
|
i * FLASH_BANK_SIZE +
|
|
(j - 7)*MAIN_SECT_SIZE;
|
|
}
|
|
}
|
|
size += flash_info[i].size;
|
|
}
|
|
|
|
/* Protect monitor and environment sectors
|
|
*/
|
|
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
|
|
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE + FLASH_BANK_SIZE
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_MONITOR_BASE,
|
|
CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
|
|
&flash_info[1]);
|
|
#else
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_MONITOR_BASE,
|
|
CFG_MONITOR_BASE + CFG_MONITOR_LEN - 1,
|
|
&flash_info[0]);
|
|
#endif
|
|
#endif
|
|
|
|
#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
|
|
#if CFG_ENV_ADDR >= CFG_FLASH_BASE + FLASH_BANK_SIZE
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
|
|
&flash_info[1]);
|
|
#else
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
|
|
&flash_info[0]);
|
|
#endif
|
|
#endif
|
|
|
|
Done:
|
|
return size;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_print_info (flash_info_t * info)
|
|
{
|
|
int i;
|
|
|
|
switch ((i = info->flash_id & FLASH_VENDMASK)) {
|
|
case (FLASH_MAN_INTEL & FLASH_VENDMASK):
|
|
printf ("Intel: ");
|
|
break;
|
|
default:
|
|
printf ("Unknown Vendor 0x%04x ", i);
|
|
break;
|
|
}
|
|
|
|
switch ((i = info->flash_id & FLASH_TYPEMASK)) {
|
|
case (INTEL_ID_28F160F3B & FLASH_TYPEMASK):
|
|
printf ("28F160F3B (16Mbit)\n");
|
|
break;
|
|
default:
|
|
printf ("Unknown Chip Type 0x%04x\n", i);
|
|
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");
|
|
|
|
Done:
|
|
return;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
int flag, prot, sect;
|
|
ulong start, now, last;
|
|
|
|
DEBUGF ("Erase flash bank %d sect %d ... %d\n",
|
|
info - &flash_info[0], 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_VENDMASK) !=
|
|
(FLASH_MAN_INTEL & FLASH_VENDMASK)) {
|
|
printf ("Can erase only Intel flash types - 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");
|
|
}
|
|
|
|
start = get_timer (0);
|
|
last = start;
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect<=s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
vu_long *addr = (vu_long *)(info->start[sect]);
|
|
|
|
DEBUGF ("Erase sect %d @ 0x%08lX\n",
|
|
sect, (ulong)addr);
|
|
|
|
/* Disable interrupts which might cause a timeout
|
|
* here.
|
|
*/
|
|
flag = disable_interrupts();
|
|
|
|
addr[0] = 0x00500050; /* clear status register */
|
|
addr[0] = 0x00200020; /* erase setup */
|
|
addr[0] = 0x00D000D0; /* erase confirm */
|
|
|
|
addr[1] = 0x00500050; /* clear status register */
|
|
addr[1] = 0x00200020; /* erase setup */
|
|
addr[1] = 0x00D000D0; /* erase confirm */
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* wait at least 80us - let's wait 1 ms */
|
|
udelay (1000);
|
|
|
|
while (((addr[0] & 0x00800080) != 0x00800080) ||
|
|
((addr[1] & 0x00800080) != 0x00800080) ) {
|
|
if ((now=get_timer(start)) >
|
|
CFG_FLASH_ERASE_TOUT) {
|
|
printf ("Timeout\n");
|
|
addr[0] = 0x00B000B0; /* suspend erase */
|
|
addr[0] = 0x00FF00FF; /* to read mode */
|
|
return 1;
|
|
}
|
|
|
|
/* show that we're waiting */
|
|
if ((now - last) > 1000) { /* every second */
|
|
putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
addr[0] = 0x00FF00FF;
|
|
}
|
|
}
|
|
printf (" done\n");
|
|
return 0;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
* 4 - Flash not identified
|
|
*/
|
|
|
|
#define FLASH_WIDTH 8 /* flash bus width in bytes */
|
|
|
|
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|
{
|
|
ulong wp, cp, msr;
|
|
int l, rc, i;
|
|
ulong data[2];
|
|
ulong *datah = &data[0];
|
|
ulong *datal = &data[1];
|
|
|
|
DEBUGF ("Flash write_buff: @ 0x%08lx, src 0x%08lx len %ld\n",
|
|
addr, (ulong)src, cnt);
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
return 4;
|
|
}
|
|
|
|
msr = get_msr();
|
|
set_msr(msr | MSR_FP);
|
|
|
|
wp = (addr & ~(FLASH_WIDTH-1)); /* get lower aligned address */
|
|
|
|
/*
|
|
* handle unaligned start bytes
|
|
*/
|
|
if ((l = addr - wp) != 0) {
|
|
*datah = *datal = 0;
|
|
|
|
for (i = 0, cp = wp; i < l; i++, cp++) {
|
|
if (i >= 4) {
|
|
*datah = (*datah << 8) |
|
|
((*datal & 0xFF000000) >> 24);
|
|
}
|
|
|
|
*datal = (*datal << 8) | (*(uchar *)cp);
|
|
}
|
|
for (; i < FLASH_WIDTH && cnt > 0; ++i) {
|
|
char tmp;
|
|
|
|
tmp = *src;
|
|
|
|
src++;
|
|
|
|
if (i >= 4) {
|
|
*datah = (*datah << 8) |
|
|
((*datal & 0xFF000000) >> 24);
|
|
}
|
|
|
|
*datal = (*datal << 8) | tmp;
|
|
|
|
--cnt; ++cp;
|
|
}
|
|
|
|
for (; cnt == 0 && i < FLASH_WIDTH; ++i, ++cp) {
|
|
if (i >= 4) {
|
|
*datah = (*datah << 8) |
|
|
((*datal & 0xFF000000) >> 24);
|
|
}
|
|
|
|
*datal = (*datah << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
if ((rc = write_data(info, wp, data)) != 0) {
|
|
set_msr(msr);
|
|
return (rc);
|
|
}
|
|
|
|
wp += FLASH_WIDTH;
|
|
}
|
|
|
|
/*
|
|
* handle FLASH_WIDTH aligned part
|
|
*/
|
|
while (cnt >= FLASH_WIDTH) {
|
|
*datah = *(ulong *)src;
|
|
*datal = *(ulong *)(src + 4);
|
|
if ((rc = write_data(info, wp, data)) != 0) {
|
|
set_msr(msr);
|
|
return (rc);
|
|
}
|
|
wp += FLASH_WIDTH;
|
|
cnt -= FLASH_WIDTH;
|
|
src += FLASH_WIDTH;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
set_msr(msr);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
*datah = *datal = 0;
|
|
for (i = 0, cp = wp; i < FLASH_WIDTH && cnt > 0; ++i, ++cp) {
|
|
char tmp;
|
|
|
|
tmp = *src;
|
|
|
|
src++;
|
|
|
|
if (i >= 4) {
|
|
*datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
|
|
}
|
|
|
|
*datal = (*datal << 8) | tmp;
|
|
|
|
--cnt;
|
|
}
|
|
|
|
for (; i < FLASH_WIDTH; ++i, ++cp) {
|
|
if (i >= 4) {
|
|
*datah = (*datah << 8) | ((*datal & 0xFF000000) >> 24);
|
|
}
|
|
|
|
*datal = (*datal << 8) | (*(uchar *)cp);
|
|
}
|
|
|
|
rc = write_data(info, wp, data);
|
|
set_msr(msr);
|
|
|
|
return (rc);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a word to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_data (flash_info_t *info, ulong dest, ulong *data)
|
|
{
|
|
vu_long *addr = (vu_long *)dest;
|
|
ulong start;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if (((addr[0] & data[0]) != data[0]) ||
|
|
((addr[1] & data[1]) != data[1]) ) {
|
|
return (2);
|
|
}
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
addr[0] = 0x00400040; /* write setup */
|
|
write_via_fpu(addr, data);
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
start = get_timer (0);
|
|
|
|
while (((addr[0] & 0x00800080) != 0x00800080) ||
|
|
((addr[1] & 0x00800080) != 0x00800080) ) {
|
|
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
addr[0] = 0x00FF00FF; /* restore read mode */
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
addr[0] = 0x00FF00FF; /* restore read mode */
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static void write_via_fpu(vu_long *addr, ulong *data)
|
|
{
|
|
__asm__ __volatile__ ("lfd 1, 0(%0)" : : "r" (data));
|
|
__asm__ __volatile__ ("stfd 1, 0(%0)" : : "r" (addr));
|
|
}
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static __inline__ unsigned long get_msr(void)
|
|
{
|
|
unsigned long msr;
|
|
|
|
__asm__ __volatile__ ("mfmsr %0" : "=r" (msr) :);
|
|
return msr;
|
|
}
|
|
|
|
static __inline__ void set_msr(unsigned long msr)
|
|
{
|
|
__asm__ __volatile__ ("mtmsr %0" : : "r" (msr));
|
|
}
|
|
|