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.
456 lines
10 KiB
456 lines
10 KiB
/*
|
|
* (C) Copyright 2000
|
|
* 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 <mpc8xx.h>
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS]; /* info for FLASH chips */
|
|
|
|
#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
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* 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)
|
|
{
|
|
volatile immap_t *immap = (immap_t *)CFG_IMMR;
|
|
volatile memctl8xx_t *memctl = &immap->im_memctl;
|
|
volatile ip860_bcsr_t *bcsr = (ip860_bcsr_t *)BCSR_BASE;
|
|
unsigned long size;
|
|
int i;
|
|
|
|
/* Init: enable write,
|
|
* or we cannot even write flash commands
|
|
*/
|
|
bcsr->bd_ctrl |= BD_CTRL_FLWE;
|
|
|
|
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
}
|
|
|
|
/* Static FLASH Bank configuration here - FIXME XXX */
|
|
|
|
size = flash_get_size((vu_long *)FLASH_BASE, &flash_info[0]);
|
|
|
|
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
|
|
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
|
|
size, size<<20);
|
|
}
|
|
|
|
/* Remap FLASH according to real size */
|
|
memctl->memc_or1 = CFG_OR_TIMING_FLASH | (-size & 0xFFFF8000);
|
|
memctl->memc_br1 = (CFG_FLASH_BASE & BR_BA_MSK) |
|
|
(memctl->memc_br1 & ~(BR_BA_MSK));
|
|
|
|
/* Re-do sizing to get full correct info */
|
|
size = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
|
|
|
|
flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
|
|
|
|
flash_info[0].size = size;
|
|
|
|
#if CFG_MONITOR_BASE >= CFG_FLASH_BASE
|
|
/* monitor protection ON by default */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_MONITOR_BASE,
|
|
CFG_MONITOR_BASE+CFG_MONITOR_LEN-1,
|
|
&flash_info[0]);
|
|
#endif
|
|
|
|
#ifdef CFG_ENV_IS_IN_FLASH
|
|
/* ENV protection ON by default */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR+CFG_ENV_SECT_SIZE-1,
|
|
&flash_info[0]);
|
|
#endif
|
|
return (size);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
static void flash_get_offsets (ulong base, flash_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
/* all possible flash types
|
|
* (28F016SV, 28F160S3, 28F320S3)
|
|
* have the same erase block size: 64 kB per chip,
|
|
* of 128 kB per bank
|
|
*/
|
|
|
|
/* set up sector start address table */
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
info->start[i] = base;
|
|
base += 0x00020000;
|
|
}
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
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_INTEL: printf ("Intel "); break;
|
|
default: printf ("Unknown Vendor "); break;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
case FLASH_28F016SV: printf ("28F016SV (16 Mbit, 32 x 64k)\n");
|
|
break;
|
|
case FLASH_28F160S3: printf ("28F160S3 (16 Mbit, 32 x 512K)\n");
|
|
break;
|
|
case FLASH_28F320S3: printf ("28F320S3 (32 Mbit, 64 x 512K)\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 "Intelligent Identifier" command: read Manufacturer ID */
|
|
*addr = 0x90909090;
|
|
|
|
value = addr[0];
|
|
switch (value) {
|
|
case (MT_MANUFACT & 0x00FF00FF): /* MT or => Intel */
|
|
case (INTEL_ALT_MANU & 0x00FF00FF):
|
|
info->flash_id = FLASH_MAN_INTEL;
|
|
break;
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
info->sector_count = 0;
|
|
info->size = 0;
|
|
return (0); /* no or unknown flash */
|
|
}
|
|
|
|
value = addr[1]; /* device ID */
|
|
|
|
switch (value) {
|
|
case (INTEL_ID_28F016S):
|
|
info->flash_id += FLASH_28F016SV;
|
|
info->sector_count = 32;
|
|
info->size = 0x00400000;
|
|
break; /* => 2x2 MB */
|
|
|
|
case (INTEL_ID_28F160S3):
|
|
info->flash_id += FLASH_28F160S3;
|
|
info->sector_count = 32;
|
|
info->size = 0x00400000;
|
|
break; /* => 2x2 MB */
|
|
|
|
case (INTEL_ID_28F320S3):
|
|
info->flash_id += FLASH_28F320S3;
|
|
info->sector_count = 64;
|
|
info->size = 0x00800000;
|
|
break; /* => 2x4 MB */
|
|
|
|
default:
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
return (0); /* => no or unknown flash */
|
|
|
|
}
|
|
|
|
/* set up sector start address table */
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
info->start[i] = base + (i * 0x00020000);
|
|
/* don't know how to check sector protection */
|
|
info->protect[i] = 0;
|
|
}
|
|
|
|
/*
|
|
* Prevent writes to uninitialized FLASH.
|
|
*/
|
|
if (info->flash_id != FLASH_UNKNOWN) {
|
|
addr = (vu_long *)info->start[0];
|
|
|
|
*addr = 0xFFFFFF; /* reset bank to read array mode */
|
|
}
|
|
|
|
return (info->size);
|
|
}
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
int flag, prot, sect;
|
|
ulong start, now, 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) {
|
|
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");
|
|
}
|
|
|
|
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]);
|
|
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
/* Single Block Erase Command */
|
|
*addr = 0x20202020;
|
|
/* Confirm */
|
|
*addr = 0xD0D0D0D0;
|
|
/* Resume Command, as per errata update */
|
|
*addr = 0xD0D0D0D0;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* wait at least 80us - let's wait 1 ms */
|
|
udelay (1000);
|
|
|
|
while ((*addr & 0x00800080) != 0x00800080) {
|
|
if ((now=get_timer(start)) > CFG_FLASH_ERASE_TOUT) {
|
|
printf ("Timeout\n");
|
|
*addr = 0xFFFFFFFF; /* reset bank */
|
|
return 1;
|
|
}
|
|
/* show that we're waiting */
|
|
if ((now - last) > 1000) { /* every second */
|
|
putc ('.');
|
|
last = now;
|
|
}
|
|
}
|
|
|
|
/* reset to read mode */
|
|
*addr = 0xFFFFFFFF;
|
|
}
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* 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 *)dest;
|
|
ulong start, csr;
|
|
int flag;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*addr & data) != data) {
|
|
return (2);
|
|
}
|
|
/* Disable interrupts which might cause a timeout here */
|
|
flag = disable_interrupts();
|
|
|
|
/* Write Command */
|
|
*addr = 0x10101010;
|
|
|
|
/* Write Data */
|
|
*addr = data;
|
|
|
|
/* re-enable interrupts if necessary */
|
|
if (flag)
|
|
enable_interrupts();
|
|
|
|
/* data polling for D7 */
|
|
start = get_timer (0);
|
|
flag = 0;
|
|
while (((csr = *addr) & 0x00800080) != 0x00800080) {
|
|
if (get_timer(start) > CFG_FLASH_WRITE_TOUT) {
|
|
flag = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (csr & 0x00400040) {
|
|
printf ("CSR indicates write error (%08lx) at %08lx\n", csr, (ulong)addr);
|
|
flag = 1;
|
|
}
|
|
|
|
/* Clear Status Registers Command */
|
|
*addr = 0x50505050;
|
|
/* Reset to read array mode */
|
|
*addr = 0xFFFFFFFF;
|
|
|
|
return (flag);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|