mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-14 17:07:38 +00:00
b87dfd2854
The TB5200 ("Tinybox") is a small baseboard for the TQM5200 module
integrated in a little aluminium case.
Patch by Martin Krause, 8 Jun 2006
Some code cleanup
494 lines
12 KiB
C
494 lines
12 KiB
C
/*
|
|
* flash.c
|
|
* -------
|
|
*
|
|
* Flash programming routines for the Wind River PPMC 74xx/7xx
|
|
* based on flash.c from the TQM8260 board.
|
|
*
|
|
* By Richard Danter (richard.danter@windriver.com)
|
|
* Copyright (C) 2005 Wind River Systems
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/processor.h>
|
|
#include <74xx_7xx.h>
|
|
|
|
#define DWORD unsigned long long
|
|
|
|
/* Local function prototypes */
|
|
static int write_dword (flash_info_t* info, ulong dest, unsigned char *pdata);
|
|
static void write_via_fpu (volatile DWORD* addr, DWORD* data);
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_reset (void)
|
|
{
|
|
unsigned long msr;
|
|
DWORD cmd_reset = 0x00F000F000F000F0LL;
|
|
|
|
if (flash_info[0].flash_id != FLASH_UNKNOWN) {
|
|
msr = get_msr ();
|
|
set_msr (msr | MSR_FP);
|
|
|
|
write_via_fpu ((DWORD*)flash_info[0].start[0], &cmd_reset );
|
|
|
|
set_msr (msr);
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
ulong flash_get_size (ulong baseaddr, flash_info_t * info)
|
|
{
|
|
int i;
|
|
unsigned long msr;
|
|
DWORD flashtest;
|
|
DWORD cmd_select[3] = { 0x00AA00AA00AA00AALL, 0x0055005500550055LL,
|
|
0x0090009000900090LL };
|
|
|
|
/* Enable FPU */
|
|
msr = get_msr ();
|
|
set_msr (msr | MSR_FP);
|
|
|
|
/* Write auto-select command sequence */
|
|
write_via_fpu ((DWORD*)(baseaddr + (0x0555 << 3)), &cmd_select[0] );
|
|
write_via_fpu ((DWORD*)(baseaddr + (0x02AA << 3)), &cmd_select[1] );
|
|
write_via_fpu ((DWORD*)(baseaddr + (0x0555 << 3)), &cmd_select[2] );
|
|
|
|
/* Restore FPU */
|
|
set_msr (msr);
|
|
|
|
/* Read manufacturer ID */
|
|
flashtest = *(volatile DWORD*)baseaddr;
|
|
switch ((int)flashtest) {
|
|
case AMD_MANUFACT:
|
|
info->flash_id = FLASH_MAN_AMD;
|
|
break;
|
|
case FUJ_MANUFACT:
|
|
info->flash_id = FLASH_MAN_FUJ;
|
|
break;
|
|
default:
|
|
/* No, faulty or unknown flash */
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
return (0);
|
|
}
|
|
|
|
/* Read device ID */
|
|
flashtest = *(volatile DWORD*)(baseaddr + 8);
|
|
switch ((long)flashtest) {
|
|
case AMD_ID_LV800T:
|
|
info->flash_id += FLASH_AM800T;
|
|
info->sector_count = 19;
|
|
info->size = 0x00400000;
|
|
break;
|
|
case AMD_ID_LV800B:
|
|
info->flash_id += FLASH_AM800B;
|
|
info->sector_count = 19;
|
|
info->size = 0x00400000;
|
|
break;
|
|
case AMD_ID_LV160T:
|
|
info->flash_id += FLASH_AM160T;
|
|
info->sector_count = 35;
|
|
info->size = 0x00800000;
|
|
break;
|
|
case AMD_ID_LV160B:
|
|
info->flash_id += FLASH_AM160B;
|
|
info->sector_count = 35;
|
|
info->size = 0x00800000;
|
|
break;
|
|
case AMD_ID_DL322T:
|
|
info->flash_id += FLASH_AMDL322T;
|
|
info->sector_count = 71;
|
|
info->size = 0x01000000;
|
|
break;
|
|
case AMD_ID_DL322B:
|
|
info->flash_id += FLASH_AMDL322B;
|
|
info->sector_count = 71;
|
|
info->size = 0x01000000;
|
|
break;
|
|
case AMD_ID_DL323T:
|
|
info->flash_id += FLASH_AMDL323T;
|
|
info->sector_count = 71;
|
|
info->size = 0x01000000;
|
|
break;
|
|
case AMD_ID_DL323B:
|
|
info->flash_id += FLASH_AMDL323B;
|
|
info->sector_count = 71;
|
|
info->size = 0x01000000;
|
|
break;
|
|
case AMD_ID_LV640U:
|
|
info->flash_id += FLASH_AM640U;
|
|
info->sector_count = 128;
|
|
info->size = 0x02000000;
|
|
break;
|
|
default:
|
|
/* Unknown flash type */
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return (0);
|
|
}
|
|
|
|
if ((long)flashtest == AMD_ID_LV640U) {
|
|
/* set up sector start adress table (uniform sector type) */
|
|
for (i = 0; i < info->sector_count; i++)
|
|
info->start[i] = baseaddr + (i * 0x00040000);
|
|
} else if (info->flash_id & FLASH_BTYPE) {
|
|
/* set up sector start adress table (bottom sector type) */
|
|
info->start[0] = baseaddr + 0x00000000;
|
|
info->start[1] = baseaddr + 0x00010000;
|
|
info->start[2] = baseaddr + 0x00018000;
|
|
info->start[3] = baseaddr + 0x00020000;
|
|
for (i = 4; i < info->sector_count; i++) {
|
|
info->start[i] = baseaddr + (i * 0x00040000) - 0x000C0000;
|
|
}
|
|
} else {
|
|
/* set up sector start adress table (top sector type) */
|
|
i = info->sector_count - 1;
|
|
info->start[i--] = baseaddr + info->size - 0x00010000;
|
|
info->start[i--] = baseaddr + info->size - 0x00018000;
|
|
info->start[i--] = baseaddr + info->size - 0x00020000;
|
|
for (; i >= 0; i--) {
|
|
info->start[i] = baseaddr + i * 0x00040000;
|
|
}
|
|
}
|
|
|
|
/* check for protected sectors */
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
|
|
if (*(volatile DWORD*)(info->start[i] + 16) & 0x0001000100010001LL) {
|
|
info->protect[i] = 1; /* D0 = 1 if protected */
|
|
} else {
|
|
info->protect[i] = 0;
|
|
}
|
|
}
|
|
|
|
flash_reset ();
|
|
return (info->size);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
unsigned long flash_init (void)
|
|
{
|
|
unsigned long size_b0 = 0;
|
|
int i;
|
|
|
|
/* Init: no FLASHes known */
|
|
for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
}
|
|
|
|
/* Static FLASH Bank configuration here (only one bank) */
|
|
size_b0 = flash_get_size (CFG_FLASH_BASE, &flash_info[0]);
|
|
if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b0 == 0) {
|
|
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
|
|
size_b0, size_b0 >> 20);
|
|
}
|
|
|
|
/*
|
|
* protect monitor and environment sectors
|
|
*/
|
|
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
|
|
flash_protect (FLAG_PROTECT_SET,
|
|
CFG_MONITOR_BASE,
|
|
CFG_MONITOR_BASE + monitor_flash_len - 1, &flash_info[0]);
|
|
#endif
|
|
|
|
#if (CFG_ENV_IS_IN_FLASH == 1) && defined(CFG_ENV_ADDR)
|
|
# ifndef CFG_ENV_SIZE
|
|
# define CFG_ENV_SIZE CFG_ENV_SECT_SIZE
|
|
# endif
|
|
flash_protect (FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
|
|
#endif
|
|
|
|
return (size_b0);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
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_AM800T:
|
|
printf ("29LV800T (8 M, top sector)\n");
|
|
break;
|
|
case FLASH_AM800B:
|
|
printf ("29LV800T (8 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AM160T:
|
|
printf ("29LV160T (16 M, top sector)\n");
|
|
break;
|
|
case FLASH_AM160B:
|
|
printf ("29LV160B (16 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AMDL322T:
|
|
printf ("29DL322T (32 M, top sector)\n");
|
|
break;
|
|
case FLASH_AMDL322B:
|
|
printf ("29DL322B (32 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AMDL323T:
|
|
printf ("29DL323T (32 M, top sector)\n");
|
|
break;
|
|
case FLASH_AMDL323B:
|
|
printf ("29DL323B (32 M, bottom sector)\n");
|
|
break;
|
|
case FLASH_AM640U:
|
|
printf ("29LV640D (64 M, uniform 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) {
|
|
if ((i % 5) == 0)
|
|
printf ("\n ");
|
|
printf (" %08lX%s",
|
|
info->start[i],
|
|
info->protect[i] ? " (RO)" : " "
|
|
);
|
|
}
|
|
printf ("\n");
|
|
return;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
int flash_erase (flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
int flag, prot, sect, l_sect;
|
|
ulong start, now, last;
|
|
unsigned long msr;
|
|
DWORD cmd_erase[6] = { 0x00AA00AA00AA00AALL, 0x0055005500550055LL,
|
|
0x0080008000800080LL, 0x00AA00AA00AA00AALL,
|
|
0x0055005500550055LL, 0x0030003000300030LL };
|
|
|
|
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;
|
|
}
|
|
|
|
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;
|
|
|
|
/* Enable FPU */
|
|
msr = get_msr();
|
|
set_msr ( msr | MSR_FP );
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts ();
|
|
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x0555 << 3)), &cmd_erase[0] );
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x02AA << 3)), &cmd_erase[1] );
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x0555 << 3)), &cmd_erase[2] );
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x0555 << 3)), &cmd_erase[3] );
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x02AA << 3)), &cmd_erase[4] );
|
|
udelay (1000);
|
|
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect <= s_last; sect++) {
|
|
if (info->protect[sect] == 0) { /* not protected */
|
|
write_via_fpu ((DWORD*)info->start[sect], &cmd_erase[5] );
|
|
l_sect = sect;
|
|
}
|
|
}
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts ();
|
|
|
|
/* Restore FPU */
|
|
set_msr (msr);
|
|
|
|
/* 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;
|
|
while ((*(volatile DWORD*)info->start[l_sect] & 0x0080008000800080LL )
|
|
!= 0x0080008000800080LL )
|
|
{
|
|
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 */
|
|
serial_putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
DONE:
|
|
/* reset to read mode */
|
|
flash_reset ();
|
|
|
|
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 dp;
|
|
static unsigned char bb[8];
|
|
int i, l, rc, cc = cnt;
|
|
|
|
dp = (addr & ~7); /* get lower dword aligned address */
|
|
|
|
/*
|
|
* handle unaligned start bytes
|
|
*/
|
|
if ((l = addr - dp) != 0) {
|
|
for (i = 0; i < 8; i++)
|
|
bb[i] = (i < l || (i - l) >= cc) ? *(char*)(dp + i) : *src++;
|
|
if ((rc = write_dword (info, dp, bb)) != 0) {
|
|
return (rc);
|
|
}
|
|
dp += 8;
|
|
cc -= 8 - l;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cc >= 8) {
|
|
if ((rc = write_dword (info, dp, src)) != 0) {
|
|
return (rc);
|
|
}
|
|
dp += 8;
|
|
src += 8;
|
|
cc -= 8;
|
|
}
|
|
|
|
if (cc <= 0) {
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
for (i = 0; i < 8; i++) {
|
|
bb[i] = (i < cc) ? *src++ : *(char*)(dp + i);
|
|
}
|
|
return (write_dword (info, dp, bb));
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Write a dword to Flash, returns:
|
|
* 0 - OK
|
|
* 1 - write timeout
|
|
* 2 - Flash not erased
|
|
*/
|
|
static int write_dword (flash_info_t * info, ulong dest, unsigned char *pdata)
|
|
{
|
|
ulong start;
|
|
unsigned long msr;
|
|
int flag, i;
|
|
DWORD data;
|
|
DWORD cmd_write[3] = { 0x00AA00AA00AA00AALL, 0x0055005500550055LL,
|
|
0x00A000A000A000A0LL };
|
|
|
|
for (data = 0, i = 0; i < 8; i++)
|
|
data = (data << 8) + *pdata++;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*(DWORD*)dest & data) != data) {
|
|
return (2);
|
|
}
|
|
|
|
/* Enable FPU */
|
|
msr = get_msr();
|
|
set_msr( msr | MSR_FP );
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts ();
|
|
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x0555 << 3)), &cmd_write[0] );
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x02AA << 3)), &cmd_write[1] );
|
|
write_via_fpu ((DWORD*)(info->start[0] + (0x0555 << 3)), &cmd_write[2] );
|
|
write_via_fpu ((DWORD*)dest, &data );
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts ();
|
|
|
|
/* Restore FPU */
|
|
set_msr(msr);
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
while (*(volatile DWORD*)dest != data ) {
|
|
if (get_timer (start) > CFG_FLASH_WRITE_TOUT) {
|
|
return (1);
|
|
}
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static void write_via_fpu (volatile DWORD* addr, DWORD* data)
|
|
{
|
|
__asm__ __volatile__ ("lfd 1, 0(%0)"::"r" (data));
|
|
__asm__ __volatile__ ("stfd 1, 0(%0)"::"r" (addr));
|
|
__asm__ __volatile__ ("eieio");
|
|
}
|