mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-05 10:33:42 +08:00
6d0f6bcf33
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
367 lines
8.3 KiB
C
367 lines
8.3 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
|
|
*
|
|
* (C) Copyright 2003 (2 x 16 bit Flash bank patches)
|
|
* Rolf Peukert, IMMS gGmbH, <rolf.peukert@imms.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 <asm/arch/pxa-regs.h>
|
|
|
|
#define FLASH_BANK_SIZE 0x02000000
|
|
#define MAIN_SECT_SIZE 0x40000 /* 2x16 = 256k per sector */
|
|
|
|
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
|
|
|
|
|
|
/**
|
|
* flash_init: - initialize data structures for flash chips
|
|
*
|
|
* @return: size of the flash
|
|
*/
|
|
|
|
ulong flash_init(void)
|
|
{
|
|
int i, j;
|
|
ulong size = 0;
|
|
|
|
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
|
|
ulong flashbase = 0;
|
|
flash_info[i].flash_id =
|
|
(INTEL_MANUFACT & FLASH_VENDMASK) |
|
|
(INTEL_ID_28F128J3 & FLASH_TYPEMASK);
|
|
flash_info[i].size = FLASH_BANK_SIZE;
|
|
flash_info[i].sector_count = CONFIG_SYS_MAX_FLASH_SECT;
|
|
memset(flash_info[i].protect, 0, CONFIG_SYS_MAX_FLASH_SECT);
|
|
|
|
switch (i) {
|
|
case 0:
|
|
flashbase = PHYS_FLASH_1;
|
|
break;
|
|
default:
|
|
panic("configured too many flash banks!\n");
|
|
break;
|
|
}
|
|
for (j = 0; j < flash_info[i].sector_count; j++) {
|
|
flash_info[i].start[j] = flashbase + j*MAIN_SECT_SIZE;
|
|
}
|
|
size += flash_info[i].size;
|
|
}
|
|
|
|
/* Protect monitor and environment sectors */
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CONFIG_SYS_FLASH_BASE,
|
|
CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1,
|
|
&flash_info[0]);
|
|
|
|
flash_protect(FLAG_PROTECT_SET,
|
|
CONFIG_ENV_ADDR,
|
|
CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1,
|
|
&flash_info[0]);
|
|
|
|
return size;
|
|
}
|
|
|
|
|
|
/**
|
|
* flash_print_info: - print information about the flash situation
|
|
*/
|
|
|
|
void flash_print_info (flash_info_t *info)
|
|
{
|
|
int i, j;
|
|
|
|
for (j=0; j<CONFIG_SYS_MAX_FLASH_BANKS; j++) {
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
case (INTEL_MANUFACT & FLASH_VENDMASK):
|
|
printf ("Intel: ");
|
|
break;
|
|
default:
|
|
printf ("Unknown Vendor ");
|
|
break;
|
|
}
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
case (INTEL_ID_28F128J3 & FLASH_TYPEMASK):
|
|
printf("28F128J3 (128Mbit)\n");
|
|
break;
|
|
default:
|
|
printf("Unknown Chip Type\n");
|
|
return;
|
|
}
|
|
|
|
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");
|
|
info++;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* flash_erase: - erase flash sectors
|
|
*/
|
|
|
|
int flash_erase(flash_info_t *info, int s_first, int s_last)
|
|
{
|
|
int flag, prot, sect;
|
|
int rc = ERR_OK;
|
|
|
|
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) != (INTEL_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.
|
|
*/
|
|
|
|
flag = 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 */
|
|
u32 * volatile addr = (u32 * volatile)(info->start[sect]);
|
|
|
|
/* erase sector: */
|
|
/* The strata flashs are aligned side by side on */
|
|
/* the data bus, so we have to write the commands */
|
|
/* to both chips here: */
|
|
|
|
*addr = 0x00200020; /* erase setup */
|
|
*addr = 0x00D000D0; /* erase confirm */
|
|
|
|
while ((*addr & 0x00800080) != 0x00800080) {
|
|
if (get_timer_masked() > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
|
*addr = 0x00B000B0; /* suspend erase*/
|
|
*addr = 0x00FF00FF; /* read mode */
|
|
rc = ERR_TIMOUT;
|
|
goto outahere;
|
|
}
|
|
}
|
|
*addr = 0x00500050; /* clear status register cmd. */
|
|
*addr = 0x00FF00FF; /* reset to read mode */
|
|
}
|
|
printf("ok.\n");
|
|
}
|
|
if (ctrlc()) printf("User Interrupt!\n");
|
|
|
|
outahere:
|
|
/* allow flash to settle - wait 10 ms */
|
|
udelay_masked(10000);
|
|
|
|
if (flag) enable_interrupts();
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* write_long: - copy memory to flash, assume a bank of 2 devices with 16bit each
|
|
*/
|
|
|
|
static int write_long (flash_info_t *info, ulong dest, ulong data)
|
|
{
|
|
u32 * volatile addr = (u32 * volatile)dest, val;
|
|
int rc = ERR_OK;
|
|
int flag;
|
|
|
|
/* read array command - just for the case... */
|
|
*addr = 0x00FF00FF;
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
if ((*addr & 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.
|
|
*/
|
|
flag = disable_interrupts();
|
|
|
|
/* clear status register command */
|
|
*addr = 0x00500050;
|
|
|
|
/* program set-up command */
|
|
*addr = 0x00400040;
|
|
|
|
/* latch address/data */
|
|
*addr = data;
|
|
|
|
/* arm simple, non interrupt dependent timer */
|
|
reset_timer_masked();
|
|
|
|
/* wait while polling the status register */
|
|
while(((val = *addr) & 0x00800080) != 0x00800080) {
|
|
if (get_timer_masked() > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
|
rc = ERR_TIMOUT;
|
|
/* suspend program command */
|
|
*addr = 0x00B000B0;
|
|
goto outahere;
|
|
}
|
|
}
|
|
|
|
/* check for errors */
|
|
if(val & 0x001A001A) {
|
|
printf("\nFlash write error %02x at address %08lx\n",
|
|
(int)val, (unsigned long)dest);
|
|
if(val & 0x00080008) {
|
|
printf("Voltage range error.\n");
|
|
rc = ERR_PROG_ERROR;
|
|
goto outahere;
|
|
}
|
|
if(val & 0x00020002) {
|
|
printf("Device protect error.\n");
|
|
rc = ERR_PROTECTED;
|
|
goto outahere;
|
|
}
|
|
if(val & 0x00100010) {
|
|
printf("Programming error.\n");
|
|
rc = ERR_PROG_ERROR;
|
|
goto outahere;
|
|
}
|
|
rc = ERR_PROG_ERROR;
|
|
goto outahere;
|
|
}
|
|
|
|
outahere:
|
|
/* read array command */
|
|
*addr = 0x00FF00FF;
|
|
if (flag) enable_interrupts();
|
|
|
|
return rc;
|
|
}
|
|
|
|
|
|
/**
|
|
* write_buf: - Copy memory to flash.
|
|
*
|
|
* @param info:
|
|
* @param src: source of copy transaction
|
|
* @param addr: where to copy to
|
|
* @param cnt: number of bytes to copy
|
|
*
|
|
* @return error code
|
|
*/
|
|
|
|
/* "long" version, uses 32bit words */
|
|
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
|
{
|
|
ulong cp, wp;
|
|
ulong data;
|
|
int l;
|
|
int i, 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 << 24);
|
|
}
|
|
for (; i<4 && cnt>0; ++i) {
|
|
data = (data >> 8) | (*src++ << 24);
|
|
--cnt;
|
|
++cp;
|
|
}
|
|
for (; cnt==0 && i<4; ++i, ++cp) {
|
|
data = (data >> 8) | (*(uchar *)cp << 24);
|
|
}
|
|
|
|
if ((rc = write_long(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
wp += 4;
|
|
}
|
|
|
|
/*
|
|
* handle word aligned part
|
|
*/
|
|
while (cnt >= 4) {
|
|
data = *((ulong*)src);
|
|
if ((rc = write_long(info, wp, data)) != 0) {
|
|
return (rc);
|
|
}
|
|
src += 4;
|
|
wp += 4;
|
|
cnt -= 4;
|
|
}
|
|
|
|
if (cnt == 0) return ERR_OK;
|
|
|
|
/*
|
|
* handle unaligned tail bytes
|
|
*/
|
|
data = 0;
|
|
for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
|
|
data = (data >> 8) | (*src++ << 24);
|
|
--cnt;
|
|
}
|
|
for (; i<4; ++i, ++cp) {
|
|
data = (data >> 8) | (*(uchar *)cp << 24);
|
|
}
|
|
|
|
return write_long(info, wp, data);
|
|
}
|