mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
252 lines
6 KiB
C
252 lines
6 KiB
C
/*
|
|
* (C) Copyright 2006 Embedded Artists AB <www.embeddedartists.com>
|
|
*
|
|
* Modified to use the routines in arch/arm/cpu/arm720t/lpc2292/flash.c by
|
|
* Gary Jennejohn <garyj@denx,de>
|
|
*
|
|
* 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/hardware.h>
|
|
|
|
#define SST_BASEADDR 0x80000000
|
|
#define SST_ADDR1 ((volatile ushort*)(SST_BASEADDR + (0x5555 << 1)))
|
|
#define SST_ADDR2 ((volatile ushort*)(SST_BASEADDR + (0x2AAA << 1)))
|
|
|
|
|
|
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
|
|
|
|
extern int lpc2292_copy_buffer_to_flash(flash_info_t *, ulong);
|
|
extern int lpc2292_flash_erase(flash_info_t *, int, int);
|
|
extern int lpc2292_write_buff (flash_info_t *, uchar *, ulong, ulong);
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*
|
|
*/
|
|
void write_word_sst(ulong addr, ushort data)
|
|
{
|
|
ushort tmp;
|
|
|
|
*SST_ADDR1 = 0x00AA;
|
|
*SST_ADDR2 = 0x0055;
|
|
*SST_ADDR1 = 0x00A0;
|
|
*((volatile ushort*)addr) = data;
|
|
/* do data polling */
|
|
do {
|
|
tmp = *((volatile ushort*)addr);
|
|
} while (tmp != data);
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
ulong flash_init (void)
|
|
{
|
|
int j, k;
|
|
ulong size = 0;
|
|
ulong flashbase = 0;
|
|
|
|
flash_info[0].flash_id = (PHILIPS_LPC2292 & FLASH_VENDMASK);
|
|
flash_info[0].size = 0x003E000; /* 256 - 8 KB */
|
|
flash_info[0].sector_count = 17;
|
|
memset (flash_info[0].protect, 0, 17);
|
|
flashbase = 0x00000000;
|
|
for (j = 0, k = 0; j < 8; j++, k++) {
|
|
flash_info[0].start[k] = flashbase;
|
|
flashbase += 0x00002000;
|
|
}
|
|
for (j = 0; j < 2; j++, k++) {
|
|
flash_info[0].start[k] = flashbase;
|
|
flashbase += 0x00010000;
|
|
}
|
|
for (j = 0; j < 7; j++, k++) {
|
|
flash_info[0].start[k] = flashbase;
|
|
flashbase += 0x00002000;
|
|
}
|
|
size += flash_info[0].size;
|
|
|
|
flash_info[1].flash_id = (SST_MANUFACT & FLASH_VENDMASK);
|
|
flash_info[1].size = 0x00200000; /* 2 MB */
|
|
flash_info[1].sector_count = 512;
|
|
memset (flash_info[1].protect, 0, 512);
|
|
flashbase = SST_BASEADDR;
|
|
for (j=0; j<512; j++) {
|
|
flash_info[1].start[j] = flashbase;
|
|
flashbase += 0x1000; /* 4 KB sectors */
|
|
}
|
|
size += flash_info[1].size;
|
|
|
|
/* Protect monitor and environment sectors */
|
|
flash_protect (FLAG_PROTECT_SET,
|
|
0x0,
|
|
0x0 + 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;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
*/
|
|
void flash_print_info (flash_info_t * info)
|
|
{
|
|
int i;
|
|
int erased = 0;
|
|
unsigned long j;
|
|
unsigned long count;
|
|
unsigned char *p;
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
case (SST_MANUFACT & FLASH_VENDMASK):
|
|
printf("SST: ");
|
|
break;
|
|
case (PHILIPS_LPC2292 & FLASH_VENDMASK):
|
|
printf("Philips: ");
|
|
break;
|
|
default:
|
|
printf ("Unknown Vendor ");
|
|
break;
|
|
}
|
|
|
|
printf (" Size: %ld KB in %d Sectors\n",
|
|
info->size >> 10, info->sector_count);
|
|
|
|
printf (" Sector Start Addresses:");
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
if ((i % 5) == 0) {
|
|
printf ("\n ");
|
|
}
|
|
if (i < (info->sector_count - 1)) {
|
|
count = info->start[i+1] - info->start[i];
|
|
}
|
|
else {
|
|
count = info->start[0] + info->size - info->start[i];
|
|
}
|
|
p = (unsigned char*)(info->start[i]);
|
|
erased = 1;
|
|
for (j = 0; j < count; j++) {
|
|
if (*p != 0xFF) {
|
|
erased = 0;
|
|
break;
|
|
}
|
|
p++;
|
|
}
|
|
printf (" %08lX%s%s", info->start[i], info->protect[i] ? " RO" : " ",
|
|
erased ? " E" : " ");
|
|
}
|
|
printf ("\n");
|
|
}
|
|
|
|
int flash_erase_sst (flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
int i;
|
|
|
|
for (i = s_first; i <= s_last; i++) {
|
|
*SST_ADDR1 = 0x00AA;
|
|
*SST_ADDR2 = 0x0055;
|
|
*SST_ADDR1 = 0x0080;
|
|
*SST_ADDR1 = 0x00AA;
|
|
*SST_ADDR2 = 0x0055;
|
|
*((volatile ushort*)(info->start[i])) = 0x0030;
|
|
/* wait for erase to finish */
|
|
udelay(25000);
|
|
}
|
|
|
|
return ERR_OK;
|
|
}
|
|
|
|
int flash_erase (flash_info_t * info, int s_first, int s_last)
|
|
{
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
case (SST_MANUFACT & FLASH_VENDMASK):
|
|
return flash_erase_sst(info, s_first, s_last);
|
|
case (PHILIPS_LPC2292 & FLASH_VENDMASK):
|
|
return lpc2292_flash_erase(info, s_first, s_last);
|
|
default:
|
|
return ERR_PROTECTED;
|
|
}
|
|
return ERR_PROTECTED;
|
|
}
|
|
|
|
/*-----------------------------------------------------------------------
|
|
* Copy memory to flash.
|
|
*
|
|
* cnt is in bytes
|
|
*/
|
|
|
|
int write_buff_sst (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
{
|
|
ushort tmp;
|
|
ulong i;
|
|
uchar* src_org;
|
|
uchar* dst_org;
|
|
ulong cnt_org = cnt;
|
|
int ret = ERR_OK;
|
|
|
|
src_org = src;
|
|
dst_org = (uchar*)addr;
|
|
|
|
if (addr & 1) { /* if odd address */
|
|
tmp = *((uchar*)(addr - 1)); /* little endian */
|
|
tmp |= (*src << 8);
|
|
write_word_sst(addr - 1, tmp);
|
|
addr += 1;
|
|
cnt -= 1;
|
|
src++;
|
|
}
|
|
while (cnt > 1) {
|
|
tmp = ((*(src+1)) << 8) + (*src); /* little endian */
|
|
write_word_sst(addr, tmp);
|
|
addr += 2;
|
|
src += 2;
|
|
cnt -= 2;
|
|
}
|
|
if (cnt > 0) {
|
|
tmp = (*((uchar*)(addr + 1))) << 8;
|
|
tmp |= *src;
|
|
write_word_sst(addr, tmp);
|
|
}
|
|
|
|
for (i = 0; i < cnt_org; i++) {
|
|
if (*dst_org != *src_org) {
|
|
printf("Write failed. Byte %lX differs\n", i);
|
|
ret = ERR_PROG_ERROR;
|
|
break;
|
|
}
|
|
dst_org++;
|
|
src_org++;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
{
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
case (SST_MANUFACT & FLASH_VENDMASK):
|
|
return write_buff_sst(info, src, addr, cnt);
|
|
case (PHILIPS_LPC2292 & FLASH_VENDMASK):
|
|
return lpc2292_write_buff(info, src, addr, cnt);
|
|
default:
|
|
return ERR_PROG_ERROR;
|
|
}
|
|
return ERR_PROG_ERROR;
|
|
}
|