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.
446 lines
9.4 KiB
446 lines
9.4 KiB
/*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Alex Zuepke <azu@sysgo.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>
|
|
|
|
ulong myflush(void);
|
|
|
|
|
|
#define FLASH_BANK_SIZE PHYS_FLASH_SIZE
|
|
#define MAIN_SECT_SIZE 0x10000 /* 64 KB */
|
|
|
|
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
|
|
|
|
|
|
#define CMD_READ_ARRAY 0x000000F0
|
|
#define CMD_UNLOCK1 0x000000AA
|
|
#define CMD_UNLOCK2 0x00000055
|
|
#define CMD_ERASE_SETUP 0x00000080
|
|
#define CMD_ERASE_CONFIRM 0x00000030
|
|
#define CMD_PROGRAM 0x000000A0
|
|
#define CMD_UNLOCK_BYPASS 0x00000020
|
|
|
|
#define MEM_FLASH_ADDR1 (*(volatile u16 *)(CFG_FLASH_BASE + (0x00000555 << 1)))
|
|
#define MEM_FLASH_ADDR2 (*(volatile u16 *)(CFG_FLASH_BASE + (0x000002AA << 1)))
|
|
|
|
#define BIT_ERASE_DONE 0x00000080
|
|
#define BIT_RDY_MASK 0x00000080
|
|
#define BIT_PROGRAM_ERROR 0x00000020
|
|
#define BIT_TIMEOUT 0x80000000 /* our flag */
|
|
|
|
#define READY 1
|
|
#define ERR 2
|
|
#define TMO 4
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
ulong flash_init(void)
|
|
{
|
|
int i, j;
|
|
ulong size = 0;
|
|
|
|
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
|
|
{
|
|
ulong flashbase = 0;
|
|
flash_info[i].flash_id =
|
|
#if defined(CONFIG_AMD_LV400)
|
|
(AMD_MANUFACT & FLASH_VENDMASK) |
|
|
(AMD_ID_LV400B & FLASH_TYPEMASK);
|
|
#elif defined(CONFIG_AMD_LV800)
|
|
(AMD_MANUFACT & FLASH_VENDMASK) |
|
|
(AMD_ID_LV800B & FLASH_TYPEMASK);
|
|
#else
|
|
#error "Unknown flash configured"
|
|
#endif
|
|
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);
|
|
if (i == 0)
|
|
flashbase = PHYS_FLASH_1;
|
|
else
|
|
panic("configured to many flash banks!\n");
|
|
for (j = 0; j < flash_info[i].sector_count; j++)
|
|
{
|
|
if (j <= 3)
|
|
{
|
|
/* 1st one is 16 KB */
|
|
if (j == 0)
|
|
{
|
|
flash_info[i].start[j] = flashbase + 0;
|
|
}
|
|
|
|
/* 2nd and 3rd are both 8 KB */
|
|
if ((j == 1) || (j == 2))
|
|
{
|
|
flash_info[i].start[j] = flashbase + 0x4000 + (j-1)*0x2000;
|
|
}
|
|
|
|
/* 4th 32 KB */
|
|
if (j == 3)
|
|
{
|
|
flash_info[i].start[j] = flashbase + 0x8000;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
flash_info[i].start[j] = flashbase + (j - 3)*MAIN_SECT_SIZE;
|
|
}
|
|
}
|
|
size += flash_info[i].size;
|
|
}
|
|
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_FLASH_BASE,
|
|
CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
|
|
&flash_info[0]);
|
|
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CFG_ENV_ADDR,
|
|
CFG_ENV_ADDR + CFG_ENV_SIZE - 1,
|
|
&flash_info[0]);
|
|
|
|
return size;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_print_info (flash_info_t *info)
|
|
{
|
|
int i;
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK)
|
|
{
|
|
case (AMD_MANUFACT & FLASH_VENDMASK):
|
|
printf("AMD: ");
|
|
break;
|
|
default:
|
|
printf("Unknown Vendor ");
|
|
break;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK)
|
|
{
|
|
case (AMD_ID_LV400B & FLASH_TYPEMASK):
|
|
printf("1x Amd29LV400BB (4Mbit)\n");
|
|
break;
|
|
case (AMD_ID_LV800B & FLASH_TYPEMASK):
|
|
printf("1x Amd29LV800BB (8Mbit)\n");
|
|
break;
|
|
default:
|
|
printf("Unknown Chip Type\n");
|
|
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:
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
ushort result;
|
|
int iflag, cflag, prot, sect;
|
|
int rc = ERR_OK;
|
|
int chip;
|
|
|
|
/* first look for protection bits */
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN)
|
|
return ERR_UNKNOWN_FLASH_TYPE;
|
|
|
|
if ((s_first < 0) || (s_first > s_last)) {
|
|
return ERR_INVAL;
|
|
}
|
|
|
|
if ((info->flash_id & FLASH_VENDMASK) !=
|
|
(AMD_MANUFACT & FLASH_VENDMASK)) {
|
|
return ERR_UNKNOWN_FLASH_VENDOR;
|
|
}
|
|
|
|
prot = 0;
|
|
for (sect=s_first; sect<=s_last; ++sect) {
|
|
if (info->protect[sect]) {
|
|
prot++;
|
|
}
|
|
}
|
|
if (prot)
|
|
return ERR_PROTECTED;
|
|
|
|
/*
|
|
* Disable interrupts which might cause a timeout
|
|
* here. Remember that our exception vectors are
|
|
* at address 0 in the flash, and we don't want a
|
|
* (ticker) exception to happen while the flash
|
|
* chip is in programming mode.
|
|
*/
|
|
cflag = icache_status();
|
|
icache_disable();
|
|
iflag = disable_interrupts();
|
|
|
|
/* Start erase on unprotected sectors */
|
|
for (sect = s_first; sect<=s_last && !ctrlc(); sect++)
|
|
{
|
|
printf("Erasing sector %2d ... ", sect);
|
|
|
|
/* arm simple, non interrupt dependent timer */
|
|
reset_timer_masked();
|
|
|
|
if (info->protect[sect] == 0)
|
|
{ /* not protected */
|
|
vu_short *addr = (vu_short *)(info->start[sect]);
|
|
|
|
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
|
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
|
MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
|
|
|
|
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
|
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
|
*addr = CMD_ERASE_CONFIRM;
|
|
|
|
/* wait until flash is ready */
|
|
chip = 0;
|
|
|
|
do
|
|
{
|
|
result = *addr;
|
|
|
|
/* check timeout */
|
|
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
|
|
{
|
|
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
|
|
chip = TMO;
|
|
break;
|
|
}
|
|
|
|
if (!chip && (result & 0xFFFF) & BIT_ERASE_DONE)
|
|
chip = READY;
|
|
|
|
if (!chip && (result & 0xFFFF) & BIT_PROGRAM_ERROR)
|
|
chip = ERR;
|
|
|
|
} while (!chip);
|
|
|
|
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
|
|
|
|
if (chip == ERR)
|
|
{
|
|
rc = ERR_PROG_ERROR;
|
|
goto outahere;
|
|
}
|
|
if (chip == TMO)
|
|
{
|
|
rc = ERR_TIMOUT;
|
|
goto outahere;
|
|
}
|
|
|
|
printf("ok.\n");
|
|
}
|
|
else /* it was protected */
|
|
{
|
|
printf("protected!\n");
|
|
}
|
|
}
|
|
|
|
if (ctrlc())
|
|
printf("User Interrupt!\n");
|
|
|
|
outahere:
|
|
/* allow flash to settle - wait 10 ms */
|
|
udelay_masked(10000);
|
|
|
|
if (iflag)
|
|
enable_interrupts();
|
|
|
|
if (cflag)
|
|
icache_enable();
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash
|
|
*/
|
|
|
|
volatile static int write_hword (flash_info_t *info, ulong dest, ushort data)
|
|
{
|
|
vu_short *addr = (vu_short *)dest;
|
|
ushort result;
|
|
int rc = ERR_OK;
|
|
int cflag, iflag;
|
|
int chip;
|
|
|
|
/*
|
|
* Check if Flash is (sufficiently) erased
|
|
*/
|
|
result = *addr;
|
|
if ((result & data) != data)
|
|
return ERR_NOT_ERASED;
|
|
|
|
|
|
/*
|
|
* Disable interrupts which might cause a timeout
|
|
* here. Remember that our exception vectors are
|
|
* at address 0 in the flash, and we don't want a
|
|
* (ticker) exception to happen while the flash
|
|
* chip is in programming mode.
|
|
*/
|
|
cflag = icache_status();
|
|
icache_disable();
|
|
iflag = disable_interrupts();
|
|
|
|
MEM_FLASH_ADDR1 = CMD_UNLOCK1;
|
|
MEM_FLASH_ADDR2 = CMD_UNLOCK2;
|
|
MEM_FLASH_ADDR1 = CMD_UNLOCK_BYPASS;
|
|
*addr = CMD_PROGRAM;
|
|
*addr = data;
|
|
|
|
/* arm simple, non interrupt dependent timer */
|
|
reset_timer_masked();
|
|
|
|
/* wait until flash is ready */
|
|
chip = 0;
|
|
do
|
|
{
|
|
result = *addr;
|
|
|
|
/* check timeout */
|
|
if (get_timer_masked() > CFG_FLASH_ERASE_TOUT)
|
|
{
|
|
chip = ERR | TMO;
|
|
break;
|
|
}
|
|
if (!chip && ((result & 0x80) == (data & 0x80)))
|
|
chip = READY;
|
|
|
|
if (!chip && ((result & 0xFFFF) & BIT_PROGRAM_ERROR))
|
|
{
|
|
result = *addr;
|
|
|
|
if ((result & 0x80) == (data & 0x80))
|
|
chip = READY;
|
|
else
|
|
chip = ERR;
|
|
}
|
|
|
|
} while (!chip);
|
|
|
|
*addr = CMD_READ_ARRAY;
|
|
|
|
if (chip == ERR || *addr != data)
|
|
rc = ERR_PROG_ERROR;
|
|
|
|
if (iflag)
|
|
enable_interrupts();
|
|
|
|
if (cflag)
|
|
icache_enable();
|
|
|
|
return rc;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash.
|
|
*/
|
|
|
|
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|
{
|
|
ulong cp, wp;
|
|
int l;
|
|
int i, rc;
|
|
ushort data;
|
|
|
|
wp = (addr & ~1); /* 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 << 8);
|
|
}
|
|
for (; i<2 && cnt>0; ++i) {
|
|
data = (data >> 8) | (*src++ << 8);
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt==0 && i<2; ++i, ++cp) {
|
|
data = (data >> 8) | (*(uchar *)cp << 8);
|
|
}
|
|
|
|
if ((rc = write_hword(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 2;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 2) {
|
|
data = *((vu_short*)src);
|
|
if ((rc = write_hword(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
src += 2;
|
|
wp += 2;
|
|
cnt -= 2;
|
|
}
|
|
|
|
if (cnt == 0) {
|
|
return ERR_OK;
|
|
}
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i=0, cp=wp; i<2 && cnt>0; ++i, ++cp) {
|
|
data = (data >> 8) | (*src++ << 8);
|
|
--cnt;
|
|
}
|
|
for (; i<2; ++i, ++cp) {
|
|
data = (data >> 8) | (*(uchar *)cp << 8);
|
|
}
|
|
|
|
return write_hword(info, wp, data);
|
|
}
|
|
|