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rename EB+MCF-EV123 to its current marketing name EB+CPU5282

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* rename board directory to eb_cpu5282
* rename EB+MCF-EV123_.*config to eb_cpu5282_.*config
* add Maintainer for EB+CPU5282 board
* rename prompt

Signed-off-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
This commit is contained in:
Jens Scharsig
2012-05-02 00:57:08 +00:00
committed by Wolfgang Denk
parent a5aae0a1a9
commit eb0b43f264
10 changed files with 11 additions and 7 deletions
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44
board/BuS/eb_cpu5282/Makefile Normal file
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#
# (C) Copyright 2000-2006
# 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 $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
COBJS = $(BOARD).o cfm_flash.o flash.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
SOBJS := $(addprefix $(obj),$(SOBJS))
$(LIB): $(obj).depend $(OBJS)
$(call cmd_link_o_target, $(OBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

212
board/BuS/eb_cpu5282/cfm_flash.c Normal file
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/*
* Basic Flash Driver for Freescale MCF 5281/5282 internal FLASH
*
* (C) Copyright 2005 BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.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/m5282.h>
#include "cfm_flash.h"
#if defined(CONFIG_M5281) || defined(CONFIG_M5282)
#if (CONFIG_SYS_CLK>20000000)
#define CFM_CLK (((long) CONFIG_SYS_CLK / (400000 * 8) + 1) | 0x40)
#else
#define CFM_CLK ((long) CONFIG_SYS_CLK / 400000 + 1)
#endif
#define cmf_backdoor_address(addr) (((addr) & 0x0007FFFF) | 0x04000000 | \
(CONFIG_SYS_MBAR & 0xC0000000))
void cfm_flash_print_info (flash_info_t * info)
{
printf ("Freescale: ");
switch (info->flash_id & FLASH_TYPEMASK) {
case FREESCALE_ID_MCF5281 & FLASH_TYPEMASK:
printf ("MCF5281 internal FLASH\n");
break;
case FREESCALE_ID_MCF5282 & FLASH_TYPEMASK:
printf ("MCF5282 internal FLASH\n");
break;
default:
printf ("Unknown Chip Type\n");
break;
}
}
void cfm_flash_init (flash_info_t * info)
{
int sector;
ulong protection;
MCFCFM_MCR = 0;
MCFCFM_CLKD = CFM_CLK;
debug ("CFM Clock divider: %ld (%d Hz @ %ld Hz)\n",CFM_CLK,\
CONFIG_SYS_CLK / (2* ((CFM_CLK & 0x3F)+1) * (1+((CFM_CLK & 0x40)>>6)*7)),\
CONFIG_SYS_CLK);
MCFCFM_SACC = 0;
MCFCFM_DACC = 0;
if (MCFCFM_SEC & MCFCFM_SEC_KEYEN)
puts("CFM backdoor access is enabled\n");
if (MCFCFM_SEC & MCFCFM_SEC_SECSTAT)
puts("CFM securety is enabled\n");
#ifdef CONFIG_M5281
info->flash_id = (FREESCALE_MANUFACT & FLASH_VENDMASK) |
(FREESCALE_ID_MCF5281 & FLASH_TYPEMASK);
info->size = 256*1024;
info->sector_count = 16;
#else
info->flash_id = (FREESCALE_MANUFACT & FLASH_VENDMASK) |
(FREESCALE_ID_MCF5282 & FLASH_TYPEMASK);
info->size = 512*1024;
info->sector_count = 32;
#endif
protection = MCFCFM_PROT;
for (sector = 0; sector < info->sector_count; sector++)
{
if (sector == 0)
{
info->start[sector] = CONFIG_SYS_INT_FLASH_BASE;
}
else
{
info->start[sector] = info->start[sector-1] + 0x04000;
}
info->protect[sector] = protection & 1;
protection >>= 1;
}
}
int cfm_flash_readycheck(int checkblank)
{
int rc;
unsigned char state;
rc = ERR_OK;
while (!(MCFCFM_USTAT & MCFCFM_USTAT_CCIF));
state = MCFCFM_USTAT;
if (state & MCFCFM_USTAT_ACCERR)
{
debug ("%s(): CFM access error",__FUNCTION__);
rc = ERR_PROG_ERROR;
}
if (state & MCFCFM_USTAT_PVIOL)
{
debug ("%s(): CFM protection violation",__FUNCTION__);
rc = ERR_PROTECTED;
}
if (checkblank)
{
if (!(state & MCFCFM_USTAT_BLANK))
{
debug ("%s(): CFM erras error",__FUNCTION__);
rc = ERR_NOT_ERASED;
}
}
MCFCFM_USTAT = state & 0x34; /* reset state */
return rc;
}
/* Erase 16KiB = 8 2KiB pages */
int cfm_flash_erase_sector (flash_info_t * info, int sector)
{
ulong address;
int page;
int rc;
rc= ERR_OK;
address = cmf_backdoor_address(info->start[sector]);
for (page=0; (page<8) && (rc==ERR_OK); page++)
{
*(volatile __u32*) address = 0;
MCFCFM_CMD = MCFCFM_CMD_PGERS;
MCFCFM_USTAT = MCFCFM_USTAT_CBEIF;
rc = cfm_flash_readycheck(0);
if (rc==ERR_OK)
{
*(volatile __u32*) address = 0;
MCFCFM_CMD = MCFCFM_CMD_PGERSVER;
MCFCFM_USTAT = MCFCFM_USTAT_CBEIF;
rc = cfm_flash_readycheck(1);
}
address += 0x800;
}
return rc;
}
int cfm_flash_write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
int rc;
ulong dest, data;
rc = ERR_OK;
if (addr & 3)
{
debug ("Byte and Word alignment not supported\n");
rc = ERR_ALIGN;
}
if (cnt & 3)
{
debug ("Byte and Word transfer not supported\n");
rc = ERR_ALIGN;
}
dest = cmf_backdoor_address(addr);
while ((cnt>=4) && (rc == ERR_OK))
{
data = *((volatile u32 *) src);
*(volatile u32*) dest = data;
MCFCFM_CMD = MCFCFM_CMD_PGM;
MCFCFM_USTAT = MCFCFM_USTAT_CBEIF;
rc = cfm_flash_readycheck(0);
if (*(volatile u32*) addr != data) rc = ERR_PROG_ERROR;
src +=4;
dest +=4;
addr +=4;
cnt -=4;
}
return rc;
}
#ifdef CONFIG_SYS_FLASH_PROTECTION
int cfm_flash_protect(flash_info_t * info,long sector,int prot)
{
int rc;
rc= ERR_OK;
if (prot)
{
MCFCFM_PROT |= (1<<sector);
info->protect[sector]=1;
}
else
{
MCFCFM_PROT &= ~(1<<sector);
info->protect[sector]=0;
}
return rc;
}
#endif
#endif

40
board/BuS/eb_cpu5282/cfm_flash.h Normal file
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/*
* Basic Flash Driver for Freescale MCF 5282 internal FLASH
*
* (C) Copyright 2005 BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.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
*/
#ifndef __CFM_FLASH_H_
#define __CFM_FLASH_H_
#define FREESCALE_MANUFACT 0xFACFFACF
#define FREESCALE_ID_MCF5281 0x5281
#define FREESCALE_ID_MCF5282 0x5282
extern void cfm_flash_print_info (flash_info_t * info);
extern int cfm_flash_erase_sector (flash_info_t * info, int sector);
extern void cfm_flash_init (flash_info_t * info);
extern int cfm_flash_write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt);
#ifdef CONFIG_SYS_FLASH_PROTECTION
extern int cfm_flash_protect(flash_info_t * info,long sector,int prot);
#endif
#endif

27
board/BuS/eb_cpu5282/config.mk Normal file
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#
# (C) Copyright 2000-2003
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
# Coldfire contribution by Bernhard Kuhn <bkuhn@metrowerks.com>
#
# 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
#
ifndef CONFIG_SYS_TEXT_BASE
CONFIG_SYS_TEXT_BASE = 0xFE000000
endif

234
board/BuS/eb_cpu5282/eb_cpu5282.c Normal file
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/*
* (C) Copyright 2005-2009
* BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
*
* (C) Copyright 2000-2003
* 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 <command.h>
#include "asm/m5282.h"
#include <bmp_layout.h>
#include <status_led.h>
#include <bus_vcxk.h>
/*---------------------------------------------------------------------------*/
DECLARE_GLOBAL_DATA_PTR;
unsigned long display_width;
unsigned long display_height;
/*---------------------------------------------------------------------------*/
int checkboard (void)
{
puts ("Board: MCF-EV1 + MCF-EV23 (BuS Elektronik GmbH & Co. KG)\n");
#if (CONFIG_SYS_TEXT_BASE == CONFIG_SYS_INT_FLASH_BASE)
puts (" Boot from Internal FLASH\n");
#endif
return 0;
}
phys_size_t initdram (int board_type)
{
int size, i;
size = 0;
MCFSDRAMC_DCR = MCFSDRAMC_DCR_RTIM_6
| MCFSDRAMC_DCR_RC ((15 * CONFIG_SYS_CLK) >> 4);
#ifdef CONFIG_SYS_SDRAM_BASE0
MCFSDRAMC_DACR0 = MCFSDRAMC_DACR_BASE (CONFIG_SYS_SDRAM_BASE0)
| MCFSDRAMC_DACR_CASL (1)
| MCFSDRAMC_DACR_CBM (3)
| MCFSDRAMC_DACR_PS_16;
MCFSDRAMC_DMR0 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_IP;
*(unsigned short *) (CONFIG_SYS_SDRAM_BASE0) = 0xA5A5;
MCFSDRAMC_DACR0 |= MCFSDRAMC_DACR_RE;
for (i = 0; i < 2000; i++)
asm (" nop");
mbar_writeLong (MCFSDRAMC_DACR0,
mbar_readLong (MCFSDRAMC_DACR0) | MCFSDRAMC_DACR_IMRS);
*(unsigned int *) (CONFIG_SYS_SDRAM_BASE0 + 0x220) = 0xA5A5;
size += CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
#endif
#ifdef CONFIG_SYS_SDRAM_BASE1
MCFSDRAMC_DACR1 = MCFSDRAMC_DACR_BASE (CONFIG_SYS_SDRAM_BASE1)
| MCFSDRAMC_DACR_CASL (1)
| MCFSDRAMC_DACR_CBM (3)
| MCFSDRAMC_DACR_PS_16;
MCFSDRAMC_DMR1 = MCFSDRAMC_DMR_BAM_16M | MCFSDRAMC_DMR_V;
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IP;
*(unsigned short *) (CONFIG_SYS_SDRAM_BASE1) = 0xA5A5;
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_RE;
for (i = 0; i < 2000; i++)
asm (" nop");
MCFSDRAMC_DACR1 |= MCFSDRAMC_DACR_IMRS;
*(unsigned int *) (CONFIG_SYS_SDRAM_BASE1 + 0x220) = 0xA5A5;
size += CONFIG_SYS_SDRAM_SIZE1 * 1024 * 1024;
#endif
return size;
}
#if defined(CONFIG_SYS_DRAM_TEST)
int testdram (void)
{
uint *pstart = (uint *) CONFIG_SYS_MEMTEST_START;
uint *pend = (uint *) CONFIG_SYS_MEMTEST_END;
uint *p;
printf("SDRAM test phase 1:\n");
for (p = pstart; p < pend; p++)
*p = 0xaaaaaaaa;
for (p = pstart; p < pend; p++) {
if (*p != 0xaaaaaaaa) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("SDRAM test phase 2:\n");
for (p = pstart; p < pend; p++)
*p = 0x55555555;
for (p = pstart; p < pend; p++) {
if (*p != 0x55555555) {
printf ("SDRAM test fails at: %08x\n", (uint) p);
return 1;
}
}
printf("SDRAM test passed.\n");
return 0;
}
#endif
int misc_init_r(void)
{
#ifdef CONFIG_HW_WATCHDOG
hw_watchdog_init();
#endif
#ifndef CONFIG_VIDEO
vcxk_init(16, 16);
#endif
return 1;
}
#if defined(CONFIG_VIDEO)
/*
****h* EB+CPU5282-T1/drv_video_init
* FUNCTION
***
*/
int drv_video_init(void)
{
char *s;
unsigned long splash;
printf("Init Video as ");
if ((s = getenv("displaywidth")) != NULL)
display_width = simple_strtoul(s, NULL, 10);
else
display_width = 256;
if ((s = getenv("displayheight")) != NULL)
display_height = simple_strtoul(s, NULL, 10);
else
display_height = 256;
printf("%lu x %lu pixel matrix\n", display_width, display_height);
MCFCCM_CCR &= ~MCFCCM_CCR_SZEN;
MCFGPIO_PEPAR &= ~MCFGPIO_PEPAR_PEPA2;
vcxk_init(display_width, display_height);
#ifdef CONFIG_SPLASH_SCREEN
if ((s = getenv("splashimage")) != NULL) {
debug("use splashimage: %s\n", s);
splash = simple_strtoul(s, NULL, 16);
debug("use splashimage: %x\n", splash);
vcxk_acknowledge_wait();
video_display_bitmap(splash, 0, 0);
}
#endif
return 0;
}
#endif
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_VIDEO
int do_brightness(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rcode = 0;
ulong side;
ulong bright;
switch (argc) {
case 3:
side = simple_strtoul(argv[1], NULL, 10);
bright = simple_strtoul(argv[2], NULL, 10);
if ((side >= 0) && (side <= 3) &&
(bright >= 0) && (bright <= 1000)) {
vcxk_setbrightness(side, bright);
rcode = 0;
} else {
printf("parameters out of range\n");
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
}
break;
default:
printf("Usage:\n%s\n", cmdtp->usage);
rcode = 1;
break;
}
return rcode;
}
/*---------------------------------------------------------------------------*/
U_BOOT_CMD(
bright, 3, 0, do_brightness,
"sets the display brightness\n",
" <side> <0..1000>\n side: 0/3=both; 1=first; 2=second\n"
);
#endif
/* EOF EB+MCF-EV123.c */

415
board/BuS/eb_cpu5282/flash.c Normal file
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/*
* (C) Copyright 2005
* BuS Elektronik GmbH & Co.KG <esw@bus-elektonik.de>
*
* Based On
* 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 "cfm_flash.h"
#define PHYS_FLASH_1 CONFIG_SYS_FLASH_BASE
#define FLASH_BANK_SIZE 0x200000
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
void flash_print_info (flash_info_t * info)
{
int i;
switch (info->flash_id & FLASH_VENDMASK) {
case (AMD_MANUFACT & FLASH_VENDMASK):
printf ("AMD: ");
switch (info->flash_id & FLASH_TYPEMASK) {
case (AMD_ID_LV160B & FLASH_TYPEMASK):
printf ("AM29LV160B (16Bit)\n");
break;
default:
printf ("Unknown Chip Type\n");
break;
}
break;
case FREESCALE_MANUFACT & FLASH_VENDMASK:
cfm_flash_print_info (info);
break;
default:
printf ("Unknown Vendor ");
break;
}
puts (" Size: ");
if ((info->size >> 20) > 0)
{
printf ("%ld MiB",info->size >> 20);
}
else
{
printf ("%ld KiB",info->size >> 10);
}
printf (" in %d Sectors\n", info->sector_count);
printf (" Sector Start Addresses:");
for (i = 0; i < info->sector_count; i++) {
if ((i % 4) == 0) {
printf ("\n ");
}
printf ("%02d: %08lX%s ", i,info->start[i],
info->protect[i] ? " P" : " ");
}
printf ("\n\n");
}
unsigned long flash_init (void)
{
int i, j;
ulong size = 0;
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) {
ulong flashbase = 0;
switch (i)
{
case 1:
flash_info[i].flash_id =
(AMD_MANUFACT & FLASH_VENDMASK) |
(AMD_ID_LV160B & 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);
flashbase = PHYS_FLASH_1;
for (j = 0; j < flash_info[i].sector_count; j++) {
if (j == 0) {
/* 1st is 16 KiB */
flash_info[i].start[j] = flashbase;
}
if ((j >= 1) && (j <= 2)) {
/* 2nd and 3rd are 8 KiB */
flash_info[i].start[j] =
flashbase + 0x4000 + 0x2000 * (j - 1);
}
if (j == 3) {
/* 4th is 32 KiB */
flash_info[i].start[j] = flashbase + 0x8000;
}
if ((j >= 4) && (j <= 34)) {
/* rest is 256 KiB */
flash_info[i].start[j] =
flashbase + 0x10000 + 0x10000 * (j - 4);
}
}
break;
case 0:
cfm_flash_init (&flash_info[i]);
break;
default:
panic ("configured to many flash banks!\n");
}
size += flash_info[i].size;
}
flash_protect (FLAG_PROTECT_SET,
CONFIG_SYS_FLASH_BASE,
CONFIG_SYS_FLASH_BASE + 0xffff, &flash_info[0]);
return size;
}
#define CMD_READ_ARRAY 0x00F0
#define CMD_UNLOCK1 0x00AA
#define CMD_UNLOCK2 0x0055
#define CMD_ERASE_SETUP 0x0080
#define CMD_ERASE_CONFIRM 0x0030
#define CMD_PROGRAM 0x00A0
#define CMD_UNLOCK_BYPASS 0x0020
#define MEM_FLASH_ADDR1 (*(volatile u16 *)(info->start[0] + (0x00000555<<1)))
#define MEM_FLASH_ADDR2 (*(volatile u16 *)(info->start[0] + (0x000002AA<<1)))
#define BIT_ERASE_DONE 0x0080
#define BIT_RDY_MASK 0x0080
#define BIT_PROGRAM_ERROR 0x0020
#define BIT_TIMEOUT 0x80000000 /* our flag */
#define ERR_READY -1
int amd_flash_erase_sector(flash_info_t * info, int sector)
{
int state;
ulong result;
ulong start;
volatile u16 *addr =
(volatile u16 *) (info->start[sector]);
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 */
state = 0;
start = get_timer(0);
do {
result = *addr;
/* check timeout */
if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
state = ERR_TIMOUT;
}
if (!state && (result & 0xFFFF) & BIT_ERASE_DONE)
state = ERR_READY;
}
while (!state);
if (state == ERR_READY)
state = ERR_OK;
MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
return state;
}
int flash_erase (flash_info_t * info, int s_first, int s_last)
{
int iflag, cflag;
int sector;
int rc;
rc = ERR_OK;
if (info->flash_id == FLASH_UNKNOWN)
{
rc = ERR_UNKNOWN_FLASH_TYPE;
} /* (info->flash_id == FLASH_UNKNOWN) */
if ((s_first < 0) || (s_first > s_last) || s_last >= info->sector_count)
{
rc = ERR_INVAL;
}
cflag = icache_status ();
icache_disable ();
iflag = disable_interrupts ();
for (sector = s_first; (sector <= s_last) && (rc == ERR_OK); sector++) {
if (info->protect[sector])
{
putc('P'); /* protected sector will not erase */
}
else
{
/* erase on unprotected sector */
puts("E\b");
switch (info->flash_id & FLASH_VENDMASK)
{
case (AMD_MANUFACT & FLASH_VENDMASK):
rc = amd_flash_erase_sector(info,sector);
break;
case (FREESCALE_MANUFACT & FLASH_VENDMASK):
rc = cfm_flash_erase_sector(info,sector);
break;
default:
return ERR_UNKNOWN_FLASH_VENDOR;
}
putc('.');
}
}
if (rc!=ERR_OK)
{
printf ("\n ");
flash_perror (rc);
}
else
{
printf (" done\n");
}
udelay (10000); /* allow flash to settle - wait 10 ms */
if (iflag)
enable_interrupts ();
if (cflag)
icache_enable ();
return rc;
}
volatile static int amd_write_word (flash_info_t * info, ulong dest, u16 data)
{
volatile u16 *addr;
ulong result;
int cflag, iflag;
int state;
ulong start;
/*
* Check if Flash is (sufficiently) erased
*/
addr = (volatile u16 *) dest;
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_PROGRAM;
*addr = data;
/* arm simple, non interrupt dependent timer */
start = get_timer(0);
/* wait until flash is ready */
state = 0;
do {
result = *addr;
/* check timeout */
if (get_timer(start) > CONFIG_SYS_FLASH_ERASE_TOUT) {
state = ERR_TIMOUT;
}
if (!state && ((result & BIT_RDY_MASK) == (data & BIT_RDY_MASK)))
state = ERR_READY;
} while (!state);
*addr = CMD_READ_ARRAY;
if (state == ERR_READY)
state = ERR_OK;
if ((*addr != data) && (state != ERR_TIMOUT))
state = ERR_PROG_ERROR;
if (iflag)
enable_interrupts ();
if (cflag)
icache_enable ();
return state;
}
int amd_flash_write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
int rc;
ulong dest;
u16 data;
rc = ERR_OK;
if (addr & 1)
{
debug ("Byte alignment not supported\n");
rc = ERR_ALIGN;
}
if (cnt & 1)
{
debug ("Byte transfer not supported\n");
rc = ERR_ALIGN;
}
dest = addr;
while ((cnt>=2) && (rc == ERR_OK))
{
data = *((volatile u16 *) src);
rc=amd_write_word (info,dest,data);
src +=2;
dest +=2;
cnt -=2;
}
return rc;
}
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
int rc;
switch (info->flash_id & FLASH_VENDMASK)
{
case (AMD_MANUFACT & FLASH_VENDMASK):
rc = amd_flash_write_buff(info,src,addr,cnt);
break;
case (FREESCALE_MANUFACT & FLASH_VENDMASK):
rc = cfm_flash_write_buff(info,src,addr,cnt);
break;
default:
rc = ERR_UNKNOWN_FLASH_VENDOR;
}
return rc;
}
int amd_flash_protect(flash_info_t * info,long sector,int prot)
{
int rc;
rc= ERR_OK;
if (prot)
{
info->protect[sector]=1;
}
else
{
info->protect[sector]=0;
}
return rc;
}
#ifdef CONFIG_SYS_FLASH_PROTECTION
int flash_real_protect(flash_info_t * info,long sector,int prot)
{
int rc;
switch (info->flash_id & FLASH_VENDMASK)
{
case (AMD_MANUFACT & FLASH_VENDMASK):
rc = amd_flash_protect(info,sector,prot);
break;
case (FREESCALE_MANUFACT & FLASH_VENDMASK):
rc = cfm_flash_protect(info,sector,prot);
break;
default:
rc = ERR_UNKNOWN_FLASH_VENDOR;
}
return rc;
}
#endif

96
board/BuS/eb_cpu5282/u-boot.lds Normal file
View File

@@ -0,0 +1,96 @@
/*
* (C) Copyright 2000-2003
* 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
*/
OUTPUT_ARCH(m68k)
SECTIONS
{
.text :
{
arch/m68k/cpu/mcf52x2/start.o (.text*)
*(.text*)
}
_etext = .;
PROVIDE (etext = .);
.rodata :
{
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
}
/* Read-write section, merged into data segment: */
. = (. + 0x00FF) & 0xFFFFFF00;
_erotext = .;
PROVIDE (erotext = .);
.reloc :
{
__got_start = .;
KEEP(*(.got))
__got_end = .;
_GOT2_TABLE_ = .;
KEEP(*(.got2))
_FIXUP_TABLE_ = .;
KEEP(*(.fixup))
}
__got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
__fixup_entries = (. - _FIXUP_TABLE_)>>2;
.data :
{
*(.data*)
*(.sdata*)
}
_edata = .;
PROVIDE (edata = .);
. = .;
__u_boot_cmd_start = .;
.u_boot_cmd : { *(.u_boot_cmd) }
__u_boot_cmd_end = .;
. = .;
__start___ex_table = .;
__ex_table : { *(__ex_table) }
__stop___ex_table = .;
. = ALIGN(256);
__init_begin = .;
.text.init : { *(.text.init) }
.data.init : { *(.data.init) }
. = ALIGN(256);
__init_end = .;
__bss_start = .;
.bss (NOLOAD) :
{
_sbss = .;
*(.bss*)
*(.sbss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
}
__bss_end__ = . ;
PROVIDE (end = .);
}