Commit 5b1d7137 authored by wdenk's avatar wdenk
Browse files

Initial revision

parent 47d1a6e1
/*
* (C) Copyright 2001
* Stubli Faverges - <www.staubli.com>
* Pierre AUBERT p.aubert@staubli.com
* U-Boot port on RPXClassic LF (CLLF_BW31) board
*
* (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 <i2c.h>
#include <config.h>
#include <mpc8xx.h>
/* ------------------------------------------------------------------------- */
static long int dram_size (long int, long int *, long int);
static unsigned char aschex_to_byte (unsigned char *cp);
/* ------------------------------------------------------------------------- */
#define _NOT_USED_ 0xFFFFCC25
const uint sdram_table[] =
{
/*
* Single Read. (Offset 00h in UPMA RAM)
*/
0xCFFFCC24, 0x0FFFCC04, 0X0CAFCC04, 0X03AFCC08,
0x3FBFCC27, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Burst Read. (Offset 08h in UPMA RAM)
*/
0xCFFFCC24, 0x0FFFCC04, 0x0CAFCC84, 0x03AFCC88,
0x3FBFCC27, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Single Write. (Offset 18h in UPMA RAM)
*/
0xCFFFCC24, 0x0FFFCC04, 0x0CFFCC04, 0x03FFCC00,
0x3FFFCC27, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Burst Write. (Offset 20h in UPMA RAM)
*/
0xCFFFCC24, 0x0FFFCC04, 0x0CFFCC80, 0x03FFCC8C,
0x0CFFCC00, 0x33FFCC27, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_,
/*
* Refresh. (Offset 30h in UPMA RAM)
*/
0xC0FFCC24, 0x03FFCC24, 0x0FFFCC24, 0x0FFFCC24,
0x3FFFCC27, /* last */
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
_NOT_USED_, _NOT_USED_, _NOT_USED_,
/*
* Exception. (Offset 3Ch in UPMA RAM)
*/
_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_
};
/* ------------------------------------------------------------------------- */
/*
* Check Board Identity:
*/
int checkboard (void)
{
puts ("Board: RPXClassic\n");
return (0);
}
/*-----------------------------------------------------------------------------
* board_get_enetaddr -- Read the MAC Address in the I2C EEPROM
*-----------------------------------------------------------------------------
*/
void board_get_enetaddr (uchar * enet)
{
int i;
char buff[256], *cp;
/* Initialize I2C */
i2c_init (CFG_I2C_SPEED, CFG_I2C_SLAVE);
/* Read 256 bytes in EEPROM */
i2c_read (0x54, 0, 1, buff, 128);
i2c_read (0x54, 128, 1, buff + 128, 128);
/* Retrieve MAC address in buffer (key EA) */
for (cp = buff;;) {
if (cp[0] == 'E' && cp[1] == 'A') {
cp += 3;
/* Read MAC address */
for (i = 0; i < 6; i++, cp += 2) {
enet[i] = aschex_to_byte (cp);
}
}
/* Scan to the end of the record */
while ((*cp != '\n') && (*cp != 0xff)) {
cp++;
}
/* If the next character is a \n, 0 or ff, we are done. */
cp++;
if ((*cp == '\n') || (*cp == 0) || (*cp == 0xff))
break;
}
#ifdef CONFIG_FEC_ENET
/* The MAC address is the same as normal ethernet except the 3rd byte */
/* (See the E.P. Planet Core Overview manual */
enet[3] |= 0x80;
/* Validate the fast ethernet tranceiver */
*((volatile uchar *) BCSR2) &= ~BCSR2_MIICTL;
*((volatile uchar *) BCSR2) &= ~BCSR2_MIIPWRDWN;
*((volatile uchar *) BCSR2) |= BCSR2_MIIRST;
*((volatile uchar *) BCSR2) |= BCSR2_MIIPWRDWN;
#endif
printf ("MAC address = %02x:%02x:%02x:%02x:%02x:%02x\n",
enet[0], enet[1], enet[2], enet[3], enet[4], enet[5]);
}
void rpxclassic_init (void)
{
/* Enable NVRAM */
*((uchar *) BCSR0) |= BCSR0_ENNVRAM;
}
/* ------------------------------------------------------------------------- */
long int initdram (int board_type)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
long int size10;
upmconfig (UPMA, (uint *) sdram_table,
sizeof (sdram_table) / sizeof (uint));
/* Refresh clock prescalar */
memctl->memc_mptpr = CFG_MPTPR;
memctl->memc_mar = 0x00000000;
/* Map controller banks 1 to the SDRAM bank */
memctl->memc_or1 = CFG_OR1_PRELIM;
memctl->memc_br1 = CFG_BR1_PRELIM;
memctl->memc_mamr = CFG_MAMR_10COL & (~(MAMR_PTAE)); /* no refresh yet */
udelay (200);
/* perform SDRAM initializsation sequence */
memctl->memc_mcr = 0x80002230; /* SDRAM bank 0 - refresh twice */
udelay (1);
memctl->memc_mamr |= MAMR_PTAE; /* enable refresh */
udelay (1000);
/* Check Bank 0 Memory Size
* try 10 column mode
*/
size10 = dram_size (CFG_MAMR_10COL, (ulong *) SDRAM_BASE_PRELIM,
SDRAM_MAX_SIZE);
return (size10);
}
/* ------------------------------------------------------------------------- */
/*
* Check memory range for valid RAM. A simple memory test determines
* the actually available RAM size between addresses `base' and
* `base + maxsize'. Some (not all) hardware errors are detected:
* - short between address lines
* - short between data lines
*/
static long int dram_size (long int mamr_value, long int *base, long int maxsize)
{
volatile immap_t *immap = (immap_t *) CFG_IMMR;
volatile memctl8xx_t *memctl = &immap->im_memctl;
volatile long int *addr;
ulong cnt, val;
ulong save[32]; /* to make test non-destructive */
unsigned char i = 0;
memctl->memc_mamr = mamr_value;
for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
addr = base + cnt; /* pointer arith! */
save[i++] = *addr;
*addr = ~cnt;
}
/* write 0 to base address */
addr = base;
save[i] = *addr;
*addr = 0;
/* check at base address */
if ((val = *addr) != 0) {
*addr = save[i];
return (0);
}
for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
addr = base + cnt; /* pointer arith! */
val = *addr;
*addr = save[--i];
if (val != (~cnt)) {
return (cnt * sizeof (long));
}
}
return (maxsize);
}
static unsigned char aschex_to_byte (unsigned char *cp)
{
u_char byte, c;
c = *cp++;
if ((c >= 'A') && (c <= 'F')) {
c -= 'A';
c += 10;
} else if ((c >= 'a') && (c <= 'f')) {
c -= 'a';
c += 10;
} else {
c -= '0';
}
byte = c * 16;
c = *cp;
if ((c >= 'A') && (c <= 'F')) {
c -= 'A';
c += 10;
} else if ((c >= 'a') && (c <= 'f')) {
c -= 'a';
c += 10;
} else {
c -= '0';
}
byte += c;
return (byte);
}
#
# (C) Copyright 2001
# Stäubli Faverges - <www.staubli.com>
# Pierre AUBERT p.aubert@staubli.com
# U-Boot port on RPXClassic LF (CLLF_BW31) board
#
# (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
#
TEXT_BASE = 0xff000000
/*
* (C) Copyright 2001
* Stubli Faverges - <www.staubli.com>
* Pierre AUBERT p.aubert@staubli.com
* U-Boot port on RPXClassic LF (CLLF_BW31) board
*
* RPXClassic uses Am29DL323B flash memory with 2 banks
*
*
* (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 */
/*-----------------------------------------------------------------------
* 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)
{
unsigned long size_b0 ;
int i;
/* Init: no FLASHes known */
for (i=0; i<CFG_MAX_FLASH_BANKS; ++i) {
flash_info[i].flash_id = FLASH_UNKNOWN;
}
size_b0 = flash_get_size((vu_long *)CFG_FLASH_BASE, &flash_info[0]);
flash_get_offsets (CFG_FLASH_BASE, &flash_info[0]);
#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
flash_info[0].size = size_b0;
return (size_b0);
}
/*-----------------------------------------------------------------------
*/
static void flash_get_offsets (ulong base, flash_info_t *info)
{
int i;
if (info->flash_id & FLASH_BTYPE) {
/* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00008000;
info->start[2] = base + 0x00010000;
info->start[3] = base + 0x00018000;
info->start[4] = base + 0x00020000;
info->start[5] = base + 0x00028000;
info->start[6] = base + 0x00030000;
info->start[7] = base + 0x00038000;
for (i = 8; i < info->sector_count; i++) {
info->start[i] = base + ((i-7) * 0x00040000) ;
}
}
}
/*-----------------------------------------------------------------------
*/
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;
default: printf ("Unknown Vendor "); break;
}
switch (info->flash_id & FLASH_TYPEMASK) {
case FLASH_AMDL323B:
printf ("AMDL323DB (16 Mbytes, bottom boot sect)\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");
}
/*-----------------------------------------------------------------------
*/
/*-----------------------------------------------------------------------
*/
/*
* 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;
/* Reset flash componeny */
addr [0] = 0xf0f0f0f0;
/* Write auto select command: read Manufacturer ID */
addr[0xAAA] = 0xAAAAAAAA ;
addr[0x555] = 0x55555555 ;
addr[0xAAA] = 0x90909090 ;
value = addr[0] ;
switch (value & 0x00FF00FF) {
case AMD_MANUFACT:
info->flash_id = FLASH_MAN_AMD;
break;
default:
info->flash_id = FLASH_UNKNOWN;
info->sector_count = 0;
info->size = 0;
return (0); /* no or unknown flash */
}
value = addr[2] ; /* device ID */
switch (value & 0x00FF00FF) {
case (AMD_ID_DL323B & 0x00FF00FF):
info->flash_id += FLASH_AMDL323B;
info->sector_count = 71;
info->size = 0x01000000; /* 16 Mb */
break;
default:
info->flash_id = FLASH_UNKNOWN;
return (0); /* => no or unknown flash */
}
/* set up sector start address table */
/* set sector offsets for bottom boot block type */
info->start[0] = base + 0x00000000;
info->start[1] = base + 0x00008000;
info->start[2] = base + 0x00010000;
info->start[3] = base + 0x00018000;
info->start[4] = base + 0x00020000;
info->start[5] = base + 0x00028000;
info->start[6] = base + 0x00030000;
info->start[7] = base + 0x00038000;
for (i = 8; i < info->sector_count; i++) {
info->start[i] = base + ((i-7) * 0x00040000) ;
}
/* check for protected sectors */
for (i = 0; i < 23; i++) {
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
/* D0 = 1 if protected */
addr = (volatile unsigned long *)(info->start[i]);
info->protect[i] = addr[4] & 1 ;
}
/* Check for protected sectors in the 2nd bank */
addr[0x100AAA] = 0xAAAAAAAA ;
addr[0x100555] = 0x55555555 ;
addr[0x100AAA] = 0x90909090 ;
for (i = 23; i < info->sector_count; i++) {
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
/* D0 = 1 if protected */
addr = (volatile unsigned long *)(info->start[i]);
info->protect[i] = addr[4] & 1 ;
}
/*
* Prevent writes to uninitialized FLASH.
*/
if (info->flash_id != FLASH_UNKNOWN) {
addr = (volatile unsigned long *)info->start[0];
*addr = 0xF0F0F0F0; /* reset bank 1 */
addr = (volatile unsigned long *)info->start[23];
*addr = 0xF0F0F0F0; /* reset bank 2 */
}
return (info->size);
}
/*-----------------------------------------------------------------------
*/
int flash_erase (flash_info_t *info, int s_first, int s_last)
{
vu_long *addr = (vu_long*)(info->start[0]);
int flag, prot, sect, l_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_UNKNOWN) ||
(info->flash_id > FLASH_AMD_COMP)) {
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");
}
l_sect = -1;
/* Disable interrupts which might cause a timeout here */
flag = disable_interrupts();
addr[0xAAA] = 0xAAAAAAAA;
addr[0x555] = 0x55555555;
addr[0xAAA] = 0x80808080;
addr[0xAAA] = 0xAAAAAAAA;
addr[0x555] = 0x55555555;
/* Start erase on unprotected sectors */
for (sect = s_first; sect<=s_last; sect++) {
if (info->protect[sect] == 0) { /* not protected */
addr = (vu_long *)(info->start[sect]) ;
addr[0] = 0x30303030 ;