board/mpl/common: remove the old legacy flash
Signed-off-by: David Mueller <d.mueller@elsoft.ch> Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
David Müller
Stefan Roese
parent
06b174124e
commit
4b11dba975
@ -53,13 +53,156 @@ extern int mem_test(ulong start, ulong ramsize, int quiet);
|
||||
#define I2C_BACKUP_ADDR 0x7C00 /* 0x200 bytes for backup */
|
||||
#define IMAGE_SIZE CONFIG_SYS_MONITOR_LEN /* ugly, but it works for now */
|
||||
|
||||
extern flash_info_t flash_info[]; /* info for FLASH chips */
|
||||
#if defined(CONFIG_PIP405) || defined(CONFIG_MIP405)
|
||||
/*-----------------------------------------------------------------------
|
||||
* On PIP/MIP405 we have 3 (4) possible boot mode
|
||||
*
|
||||
* - Boot from Flash (Flash CS = CS0, MPS CS = CS1)
|
||||
* - Boot from MPS (Flash CS = CS1, MPS CS = CS0)
|
||||
* - Boot from PCI with Flash map (Flash CS = CS0, MPS CS = CS1)
|
||||
* - Boot from PCI with MPS map (Flash CS = CS1, MPS CS = CS0)
|
||||
* The flash init is the first board specific routine which is called
|
||||
* after code relocation (running from SDRAM)
|
||||
* The first thing we do is to map the Flash CS to the Flash area and
|
||||
* the MPS CS to the MPS area. Since the flash size is unknown at this
|
||||
* point, we use the max flash size and the lowest flash address as base.
|
||||
*
|
||||
* After flash detection we adjust the size of the CS area accordingly.
|
||||
* update_flash_size() will fix in wrong values in the flash_info structure,
|
||||
* misc_init_r() will fix the values in the board info structure
|
||||
*/
|
||||
int get_boot_mode(void)
|
||||
{
|
||||
unsigned long pbcr;
|
||||
int res = 0;
|
||||
pbcr = mfdcr(CPC0_PSR);
|
||||
if ((pbcr & PSR_ROM_WIDTH_MASK) == 0)
|
||||
/* boot via MPS or MPS mapping */
|
||||
res = BOOT_MPS;
|
||||
if (pbcr & PSR_ROM_LOC)
|
||||
/* boot via PCI.. */
|
||||
res |= BOOT_PCI;
|
||||
return res;
|
||||
}
|
||||
|
||||
/* Map the flash high (in boot area)
|
||||
This code can only be executed from SDRAM (after relocation).
|
||||
*/
|
||||
void setup_cs_reloc(void)
|
||||
{
|
||||
int mode;
|
||||
/*
|
||||
* since we are relocated, we can set-up the CS finaly
|
||||
* but first of all, switch off PCI mapping (in case it
|
||||
* was a PCI boot)
|
||||
*/
|
||||
out32r(PMM0MA, 0L);
|
||||
/* get boot mode */
|
||||
mode = get_boot_mode();
|
||||
/*
|
||||
* we map the flash high in every case
|
||||
* first find out to which CS the flash is attached to
|
||||
*/
|
||||
if (mode & BOOT_MPS) {
|
||||
/* map flash high on CS1 and MPS on CS0 */
|
||||
mtdcr(EBC0_CFGADDR, PB0AP);
|
||||
mtdcr(EBC0_CFGDATA, MPS_AP);
|
||||
mtdcr(EBC0_CFGADDR, PB0CR);
|
||||
mtdcr(EBC0_CFGDATA, MPS_CR);
|
||||
/*
|
||||
* we use the default values (max values) for the flash
|
||||
* because its real size is not yet known
|
||||
*/
|
||||
mtdcr(EBC0_CFGADDR, PB1AP);
|
||||
mtdcr(EBC0_CFGDATA, FLASH_AP);
|
||||
mtdcr(EBC0_CFGADDR, PB1CR);
|
||||
mtdcr(EBC0_CFGDATA, FLASH_CR_B);
|
||||
} else {
|
||||
/* map flash high on CS0 and MPS on CS1 */
|
||||
mtdcr(EBC0_CFGADDR, PB1AP);
|
||||
mtdcr(EBC0_CFGDATA, MPS_AP);
|
||||
mtdcr(EBC0_CFGADDR, PB1CR);
|
||||
mtdcr(EBC0_CFGDATA, MPS_CR);
|
||||
/*
|
||||
* we use the default values (max values) for the flash
|
||||
* because its real size is not yet known
|
||||
*/
|
||||
mtdcr(EBC0_CFGADDR, PB0AP);
|
||||
mtdcr(EBC0_CFGDATA, FLASH_AP);
|
||||
mtdcr(EBC0_CFGADDR, PB0CR);
|
||||
mtdcr(EBC0_CFGDATA, FLASH_CR_B);
|
||||
}
|
||||
}
|
||||
#endif /* #if defined(CONFIG_PIP405) || defined(CONFIG_MIP405) */
|
||||
|
||||
#ifdef CONFIG_SYS_UPDATE_FLASH_SIZE
|
||||
/* adjust flash start and protection info */
|
||||
int update_flash_size(int flash_size)
|
||||
{
|
||||
int i = 0, mode;
|
||||
flash_info_t *info = &flash_info[0];
|
||||
unsigned long flashcr;
|
||||
unsigned long flash_base = (0 - flash_size) & 0xFFF00000;
|
||||
|
||||
if (flash_size > 128*1024*1024) {
|
||||
printf("\n ### ERROR, wrong flash size: %X, reset board ###\n",
|
||||
flash_size);
|
||||
hang();
|
||||
}
|
||||
|
||||
if ((flash_size >> 20) != 0)
|
||||
i = __ilog2(flash_size >> 20);
|
||||
|
||||
/* set up flash CS according to the size */
|
||||
mode = get_boot_mode();
|
||||
if (mode & BOOT_MPS) {
|
||||
/* flash is on CS1 */
|
||||
mtdcr(EBC0_CFGADDR, PB1CR);
|
||||
flashcr = mfdcr(EBC0_CFGDATA);
|
||||
/* we map the flash high in every case */
|
||||
flashcr &= 0x0001FFFF; /* mask out address bits */
|
||||
flashcr |= flash_base; /* start addr */
|
||||
flashcr |= (i << 17); /* size addr */
|
||||
mtdcr(EBC0_CFGADDR, PB1CR);
|
||||
mtdcr(EBC0_CFGDATA, flashcr);
|
||||
} else {
|
||||
/* flash is on CS0 */
|
||||
mtdcr(EBC0_CFGADDR, PB0CR);
|
||||
flashcr = mfdcr(EBC0_CFGDATA);
|
||||
/* we map the flash high in every case */
|
||||
flashcr &= 0x0001FFFF; /* mask out address bits */
|
||||
flashcr |= flash_base; /* start addr */
|
||||
flashcr |= (i << 17); /* size addr */
|
||||
mtdcr(EBC0_CFGADDR, PB0CR);
|
||||
mtdcr(EBC0_CFGDATA, flashcr);
|
||||
}
|
||||
|
||||
for (i = 0; i < info->sector_count; i++)
|
||||
/* adjust sector start address */
|
||||
info->start[i] = flash_base +
|
||||
(info->start[i] - CONFIG_SYS_FLASH_BASE);
|
||||
|
||||
/* unprotect all sectors */
|
||||
flash_protect(FLAG_PROTECT_CLEAR,
|
||||
info->start[0],
|
||||
0xFFFFFFFF,
|
||||
info);
|
||||
flash_protect_default();
|
||||
/* protect reset vector too*/
|
||||
flash_protect(FLAG_PROTECT_SET,
|
||||
info->start[info->sector_count-1],
|
||||
0xFFFFFFFF,
|
||||
info);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
static int
|
||||
mpl_prg(uchar *src, ulong size)
|
||||
{
|
||||
ulong start;
|
||||
flash_info_t *info;
|
||||
flash_info_t *info = &flash_info[0];
|
||||
int i, rc;
|
||||
#if defined(CONFIG_PATI)
|
||||
int start_sect;
|
||||
@ -69,8 +212,6 @@ mpl_prg(uchar *src, ulong size)
|
||||
ulong *magic = (ulong *)src;
|
||||
#endif
|
||||
|
||||
info = &flash_info[0];
|
||||
|
||||
#if defined(CONFIG_PIP405) || defined(CONFIG_MIP405) || defined(CONFIG_PATI)
|
||||
if (uimage_to_cpu (magic[0]) != IH_MAGIC) {
|
||||
puts("Bad Magic number\n");
|
||||
@ -96,12 +237,18 @@ mpl_prg(uchar *src, ulong size)
|
||||
}
|
||||
#if !defined(CONFIG_PATI)
|
||||
start = 0 - size;
|
||||
for (i = info->sector_count-1; i > 0; i--) {
|
||||
info->protect[i] = 0; /* unprotect this sector */
|
||||
|
||||
/* unprotect sectors used by u-boot */
|
||||
flash_protect(FLAG_PROTECT_CLEAR,
|
||||
start,
|
||||
0xFFFFFFFF,
|
||||
info);
|
||||
|
||||
/* search start sector */
|
||||
for (i = info->sector_count-1; i > 0; i--)
|
||||
if (start >= info->start[i])
|
||||
break;
|
||||
}
|
||||
/* set-up flash location */
|
||||
|
||||
/* now erase flash */
|
||||
printf("Erasing at %lx (sector %d) (start %lx)\n",
|
||||
start,i,info->start[i]);
|
||||
@ -114,22 +261,24 @@ mpl_prg(uchar *src, ulong size)
|
||||
#else /* #if !defined(CONFIG_PATI */
|
||||
start = FIRM_START;
|
||||
start_sect = -1;
|
||||
for (i = 0; i < info->sector_count; i++) {
|
||||
if (start < info->start[i]) {
|
||||
start_sect = i - 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
info->protect[i - 1] = 0; /* unprotect this sector */
|
||||
for (; i < info->sector_count; i++) {
|
||||
if ((start + size) < info->start[i])
|
||||
/* search start sector */
|
||||
for (i = info->sector_count-1; i > 0; i--)
|
||||
if (start >= info->start[i])
|
||||
break;
|
||||
info->protect[i] = 0; /* unprotect this sector */
|
||||
}
|
||||
|
||||
i--;
|
||||
/* set-up flash location */
|
||||
start_sect = i;
|
||||
|
||||
for (i = info->sector_count-1; i > 0; i--)
|
||||
if ((start + size) >= info->start[i])
|
||||
break;
|
||||
|
||||
/* unprotect sectors used by u-boot */
|
||||
flash_protect(FLAG_PROTECT_CLEAR,
|
||||
start,
|
||||
start + size,
|
||||
info);
|
||||
|
||||
/* now erase flash */
|
||||
printf ("Erasing at %lx to %lx (sector %d to %d) (%lx to %lx)\n",
|
||||
start, start + size, start_sect, i,
|
||||
@ -143,12 +292,17 @@ mpl_prg(uchar *src, ulong size)
|
||||
|
||||
#elif defined(CONFIG_VCMA9)
|
||||
start = 0;
|
||||
for (i = 0; i <info->sector_count; i++) {
|
||||
info->protect[i] = 0; /* unprotect this sector */
|
||||
|
||||
/* search end sector */
|
||||
for (i = 0; i < info->sector_count; i++)
|
||||
if (size < info->start[i])
|
||||
break;
|
||||
}
|
||||
/* set-up flash location */
|
||||
|
||||
flash_protect(FLAG_PROTECT_CLEAR,
|
||||
start,
|
||||
size,
|
||||
info);
|
||||
|
||||
/* now erase flash */
|
||||
printf("Erasing at %lx (sector %d) (start %lx)\n",
|
||||
start,0,info->start[0]);
|
||||
|
||||
@ -30,11 +30,15 @@ typedef struct {
|
||||
char eth_addr[21]; /* "00:60:C2:0a:00:00" */
|
||||
} backup_t;
|
||||
|
||||
extern flash_info_t flash_info[]; /* info for FLASH chips */
|
||||
|
||||
void get_backup_values(backup_t *buf);
|
||||
|
||||
#if defined(CONFIG_PIP405) || defined(CONFIG_MIP405)
|
||||
#define BOOT_MPS 0x01
|
||||
#define BOOT_PCI 0x02
|
||||
int get_boot_mode(void);
|
||||
void setup_cs_reloc(void);
|
||||
#endif
|
||||
|
||||
void check_env(void);
|
||||
|
||||
@ -1,872 +0,0 @@
|
||||
/*
|
||||
* (C) Copyright 2000, 2001
|
||||
* 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
|
||||
*/
|
||||
|
||||
/*
|
||||
* Modified 4/5/2001
|
||||
* Wait for completion of each sector erase command issued
|
||||
* 4/5/2001
|
||||
* Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
|
||||
*/
|
||||
|
||||
/*
|
||||
* Modified 3/7/2001
|
||||
* - adapted for pip405, Denis Peter, MPL AG Switzerland
|
||||
* TODO:
|
||||
* clean-up
|
||||
*/
|
||||
|
||||
#include <common.h>
|
||||
|
||||
#if !defined(CONFIG_PATI)
|
||||
#include <asm/ppc4xx.h>
|
||||
#include <asm/processor.h>
|
||||
#include "common_util.h"
|
||||
#if defined(CONFIG_MIP405)
|
||||
#include "../mip405/mip405.h"
|
||||
#endif
|
||||
#if defined(CONFIG_PIP405)
|
||||
#include "../pip405/pip405.h"
|
||||
#endif
|
||||
#include <asm/4xx_pci.h>
|
||||
#else /* defined(CONFIG_PATI) */
|
||||
#include <mpc5xx.h>
|
||||
#endif
|
||||
|
||||
flash_info_t flash_info[CONFIG_SYS_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);
|
||||
|
||||
void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt);
|
||||
|
||||
#define ADDR0 0x5555
|
||||
#define ADDR1 0x2aaa
|
||||
#define FLASH_WORD_SIZE unsigned short
|
||||
|
||||
#define FALSE 0
|
||||
#define TRUE 1
|
||||
|
||||
#if !defined(CONFIG_PATI)
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
* Some CS switching routines:
|
||||
*
|
||||
* On PIP/MIP405 we have 3 (4) possible boot mode
|
||||
*
|
||||
* - Boot from Flash (Flash CS = CS0, MPS CS = CS1)
|
||||
* - Boot from MPS (Flash CS = CS1, MPS CS = CS0)
|
||||
* - Boot from PCI with Flash map (Flash CS = CS0, MPS CS = CS1)
|
||||
* - Boot from PCI with MPS map (Flash CS = CS1, MPS CS = CS0)
|
||||
* The flash init is the first board specific routine which is called
|
||||
* after code relocation (running from SDRAM)
|
||||
* The first thing we do is to map the Flash CS to the Flash area and
|
||||
* the MPS CS to the MPS area. Since the flash size is unknown at this
|
||||
* point, we use the max flash size and the lowest flash address as base.
|
||||
*
|
||||
* After flash detection we adjust the size of the CS area accordingly.
|
||||
* The board_init_r will fill in wrong values in the board init structure,
|
||||
* but this will be fixed in the misc_init_r routine:
|
||||
* bd->bi_flashstart=0-flash_info[0].size
|
||||
* bd->bi_flashsize=flash_info[0].size-CONFIG_SYS_MONITOR_LEN
|
||||
* bd->bi_flashoffset=0
|
||||
*
|
||||
*/
|
||||
int get_boot_mode(void)
|
||||
{
|
||||
unsigned long pbcr;
|
||||
int res = 0;
|
||||
pbcr = mfdcr (CPC0_PSR);
|
||||
if ((pbcr & PSR_ROM_WIDTH_MASK) == 0)
|
||||
/* boot via MPS or MPS mapping */
|
||||
res = BOOT_MPS;
|
||||
if(pbcr & PSR_ROM_LOC)
|
||||
/* boot via PCI.. */
|
||||
res |= BOOT_PCI;
|
||||
return res;
|
||||
}
|
||||
|
||||
/* Map the flash high (in boot area)
|
||||
This code can only be executed from SDRAM (after relocation).
|
||||
*/
|
||||
void setup_cs_reloc(void)
|
||||
{
|
||||
int mode;
|
||||
/* Since we are relocated, we can set-up the CS finaly
|
||||
* but first of all, switch off PCI mapping (in case it was a PCI boot) */
|
||||
out32r(PMM0MA,0L);
|
||||
icache_enable (); /* we are relocated */
|
||||
/* get boot mode */
|
||||
mode=get_boot_mode();
|
||||
/* we map the flash high in every case */
|
||||
/* first findout on which cs the flash is */
|
||||
if(mode & BOOT_MPS) {
|
||||
/* map flash high on CS1 and MPS on CS0 */
|
||||
mtdcr (EBC0_CFGADDR, PB0AP);
|
||||
mtdcr (EBC0_CFGDATA, MPS_AP);
|
||||
mtdcr (EBC0_CFGADDR, PB0CR);
|
||||
mtdcr (EBC0_CFGDATA, MPS_CR);
|
||||
/* we use the default values (max values) for the flash
|
||||
* because its real size is not yet known */
|
||||
mtdcr (EBC0_CFGADDR, PB1AP);
|
||||
mtdcr (EBC0_CFGDATA, FLASH_AP);
|
||||
mtdcr (EBC0_CFGADDR, PB1CR);
|
||||
mtdcr (EBC0_CFGDATA, FLASH_CR_B);
|
||||
}
|
||||
else {
|
||||
/* map flash high on CS0 and MPS on CS1 */
|
||||
mtdcr (EBC0_CFGADDR, PB1AP);
|
||||
mtdcr (EBC0_CFGDATA, MPS_AP);
|
||||
mtdcr (EBC0_CFGADDR, PB1CR);
|
||||
mtdcr (EBC0_CFGDATA, MPS_CR);
|
||||
/* we use the default values (max values) for the flash
|
||||
* because its real size is not yet known */
|
||||
mtdcr (EBC0_CFGADDR, PB0AP);
|
||||
mtdcr (EBC0_CFGDATA, FLASH_AP);
|
||||
mtdcr (EBC0_CFGADDR, PB0CR);
|
||||
mtdcr (EBC0_CFGDATA, FLASH_CR_B);
|
||||
}
|
||||
}
|
||||
|
||||
#endif /* #if !defined(CONFIG_PATI) */
|
||||
|
||||
unsigned long flash_init (void)
|
||||
{
|
||||
unsigned long size_b0;
|
||||
int i;
|
||||
|
||||
#if !defined(CONFIG_PATI)
|
||||
unsigned long flashcr,size_reg;
|
||||
int mode;
|
||||
extern char version_string;
|
||||
char *p = &version_string;
|
||||
|
||||
/* Since we are relocated, we can set-up the CS finally */
|
||||
setup_cs_reloc();
|
||||
/* get and display boot mode */
|
||||
mode=get_boot_mode();
|
||||
if(mode & BOOT_PCI)
|
||||
printf("(PCI Boot %s Map) ",(mode & BOOT_MPS) ?
|
||||
"MPS" : "Flash");
|
||||
else
|
||||
printf("(%s Boot) ",(mode & BOOT_MPS) ?
|
||||
"MPS" : "Flash");
|
||||
#endif /* #if !defined(CONFIG_PATI) */
|
||||
/* Init: no FLASHes known */
|
||||
for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
|
||||
flash_info[i].flash_id = FLASH_UNKNOWN;
|
||||
}
|
||||
|
||||
/* Static FLASH Bank configuration here - FIXME XXX */
|
||||
|
||||
size_b0 = flash_get_size((vu_long *)CONFIG_SYS_MONITOR_BASE, &flash_info[0]);
|
||||
|
||||
if (flash_info[0].flash_id == FLASH_UNKNOWN) {
|
||||
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
|
||||
size_b0, size_b0<<20);
|
||||
}
|
||||
/* protect the bootloader */
|
||||
/* Monitor protection ON by default */
|
||||
#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
|
||||
flash_protect(FLAG_PROTECT_SET,
|
||||
CONFIG_SYS_MONITOR_BASE,
|
||||
CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
|
||||
&flash_info[0]);
|
||||
#endif
|
||||
#if !defined(CONFIG_PATI)
|
||||
/* protect reset vector */
|
||||
flash_info[0].protect[flash_info[0].sector_count-1] = 1;
|
||||
flash_info[0].size = size_b0;
|
||||
/* set up flash cs according to the size */
|
||||
size_reg=(flash_info[0].size >>20);
|
||||
switch (size_reg) {
|
||||
case 0:
|
||||
case 1: i=0; break; /* <= 1MB */
|
||||
case 2: i=1; break; /* = 2MB */
|
||||
case 4: i=2; break; /* = 4MB */
|
||||
case 8: i=3; break; /* = 8MB */
|
||||
case 16: i=4; break; /* = 16MB */
|
||||
case 32: i=5; break; /* = 32MB */
|
||||
case 64: i=6; break; /* = 64MB */
|
||||
case 128: i=7; break; /*= 128MB */
|
||||
default:
|
||||
printf("\n #### ERROR, wrong size %ld MByte reset board #####\n",size_reg);
|
||||
while(1);
|
||||
}
|
||||
if(mode & BOOT_MPS) {
|
||||
/* flash is on CS1 */
|
||||
mtdcr(EBC0_CFGADDR, PB1CR);
|
||||
flashcr = mfdcr (EBC0_CFGDATA);
|
||||
/* we map the flash high in every case */
|
||||
flashcr&=0x0001FFFF; /* mask out address bits */
|
||||
flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */
|
||||
flashcr|= (i << 17); /* size addr */
|
||||
mtdcr(EBC0_CFGADDR, PB1CR);
|
||||
mtdcr(EBC0_CFGDATA, flashcr);
|
||||
}
|
||||
else {
|
||||
/* flash is on CS0 */
|
||||
mtdcr(EBC0_CFGADDR, PB0CR);
|
||||
flashcr = mfdcr (EBC0_CFGDATA);
|
||||
/* we map the flash high in every case */
|
||||
flashcr&=0x0001FFFF; /* mask out address bits */
|
||||
flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */
|
||||
flashcr|= (i << 17); /* size addr */
|
||||
mtdcr(EBC0_CFGADDR, PB0CR);
|
||||
mtdcr(EBC0_CFGDATA, flashcr);
|
||||
}
|
||||
#if 0
|
||||
/* enable this (PIP405/MIP405 only) if you want to test if
|
||||
the relocation has be done ok.
|
||||
This will disable both Chipselects */
|
||||
mtdcr (EBC0_CFGADDR, PB0CR);
|
||||
mtdcr (EBC0_CFGDATA, 0L);
|
||||
mtdcr (EBC0_CFGADDR, PB1CR);
|
||||
mtdcr (EBC0_CFGDATA, 0L);
|
||||
printf("CS0 & CS1 switched off for test\n");
|
||||
#endif
|
||||
/* patch version_string */
|
||||
for(i=0;i<0x100;i++) {
|
||||
if(*p=='\n') {
|
||||
*p=0;
|
||||
break;
|
||||
}
|
||||
p++;
|
||||
}
|
||||
#else /* #if !defined(CONFIG_PATI) */
|
||||
#ifdef CONFIG_ENV_IS_IN_FLASH
|
||||
/* ENV protection ON by default */
|
||||
flash_protect(FLAG_PROTECT_SET,
|
||||
CONFIG_ENV_ADDR,
|
||||
CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
|
||||
&flash_info[0]);
|
||||
#endif
|
||||
#endif /* #if !defined(CONFIG_PATI) */
|
||||
return (size_b0);
|
||||
}
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
*/
|
||||
void flash_print_info (flash_info_t *info)
|
||||
{
|
||||
int i;
|
||||
int k;
|
||||
int size;
|
||||
int erased;
|
||||
volatile unsigned long *flash;
|
||||
|
||||
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;
|
||||
case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
|
||||
case FLASH_MAN_SST: printf ("SST "); break;
|
||||
case FLASH_MAN_INTEL: printf ("Intel "); break;
|
||||
default: printf ("Unknown Vendor "); break;
|
||||
}
|
||||
|
||||
switch (info->flash_id & FLASH_TYPEMASK) {
|
||||
case FLASH_AM040: printf ("AM29F040 (512 Kbit, uniform sector size)\n");
|
||||
break;
|
||||
case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
|
||||
break;
|
||||
case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
|
||||
break;
|
||||
case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
|
||||
break;
|
||||
case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
|
||||
break;
|
||||
case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
|
||||
break;
|
||||
case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
|
||||
break;
|
||||
case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
|
||||
break;
|
||||
case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
|
||||
break;
|
||||
case FLASH_SST800A: printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
|
||||
break;
|
||||
case FLASH_SST160A: printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
|
||||
break;
|
||||
case FLASH_INTEL320T: printf ("TE28F320C3 (32 Mbit, top sector size)\n");
|
||||
break;
|
||||
case FLASH_AM640U: printf ("AM29LV640U (64 Mbit, uniform sector size)\n");
|
||||
break;
|
||||
default: printf ("Unknown Chip Type\n");
|
||||
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) {
|
||||
/*
|
||||
* Check if whole sector is erased
|
||||
*/
|
||||
if (i != (info->sector_count-1))
|
||||
size = info->start[i+1] - info->start[i];
|
||||
else
|
||||
size = info->start[0] + info->size - info->start[i];
|
||||
erased = 1;
|
||||
flash = (volatile unsigned long *)info->start[i];
|
||||
size = size >> 2; /* divide by 4 for longword access */
|
||||
for (k=0; k<size; k++) {
|
||||
if (*flash++ != 0xffffffff) {
|
||||
erased = 0;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if ((i % 5) == 0)
|
||||
printf ("\n ");
|
||||
printf (" %08lX%s%s",
|
||||
info->start[i],
|
||||
erased ? " E" : " ",
|
||||
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;
|
||||
FLASH_WORD_SIZE value;
|
||||
ulong base;
|
||||
volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
|
||||
|
||||
/* Write auto select command: read Manufacturer ID */
|
||||
addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
|
||||
addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
|
||||
addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090;
|
||||
|
||||
value = addr2[0];
|
||||
/* printf("flash_get_size value: %x\n",value); */
|
||||
switch (value) {
|
||||
case (FLASH_WORD_SIZE)AMD_MANUFACT:
|
||||
info->flash_id = FLASH_MAN_AMD;
|
||||
break;
|
||||
case (FLASH_WORD_SIZE)FUJ_MANUFACT:
|
||||
info->flash_id = FLASH_MAN_FUJ;
|
||||
break;
|
||||
case (FLASH_WORD_SIZE)INTEL_MANUFACT:
|
||||
info->flash_id = FLASH_MAN_INTEL;
|
||||
break;
|
||||
case (FLASH_WORD_SIZE)SST_MANUFACT:
|
||||
info->flash_id = FLASH_MAN_SST;
|
||||
break;
|
||||
default:
|
||||
info->flash_id = FLASH_UNKNOWN;
|
||||
info->sector_count = 0;
|
||||
info->size = 0;
|
||||
return (0); /* no or unknown flash */
|
||||
}
|
||||
value = addr2[1]; /* device ID */
|
||||
/* printf("Device value %x\n",value); */
|
||||
switch (value) {
|
||||
case (FLASH_WORD_SIZE)AMD_ID_F040B:
|
||||
info->flash_id += FLASH_AM040;
|
||||
info->sector_count = 8;
|
||||
info->size = 0x0080000; /* => 512 ko */
|
||||
break;
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV400T:
|
||||
info->flash_id += FLASH_AM400T;
|
||||
info->sector_count = 11;
|
||||
info->size = 0x00080000;
|
||||
break; /* => 0.5 MB */
|
||||
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV400B:
|
||||
info->flash_id += FLASH_AM400B;
|
||||
info->sector_count = 11;
|
||||
info->size = 0x00080000;
|
||||
break; /* => 0.5 MB */
|
||||
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV800T:
|
||||
info->flash_id += FLASH_AM800T;
|
||||
info->sector_count = 19;
|
||||
info->size = 0x00100000;
|
||||
break; /* => 1 MB */
|
||||
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV800B:
|
||||
info->flash_id += FLASH_AM800B;
|
||||
info->sector_count = 19;
|
||||
info->size = 0x00100000;
|
||||
break; /* => 1 MB */
|
||||
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV160T:
|
||||
info->flash_id += FLASH_AM160T;
|
||||
info->sector_count = 35;
|
||||
info->size = 0x00200000;
|
||||
break; /* => 2 MB */
|
||||
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV160B:
|
||||
info->flash_id += FLASH_AM160B;
|
||||
info->sector_count = 35;
|
||||
info->size = 0x00200000;
|
||||
break; /* => 2 MB */
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV320T:
|
||||
info->flash_id += FLASH_AM320T;
|
||||
info->sector_count = 67;
|
||||
info->size = 0x00400000;
|
||||
break; /* => 4 MB */
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV640U:
|
||||
info->flash_id += FLASH_AM640U;
|
||||
info->sector_count = 128;
|
||||
info->size = 0x00800000;
|
||||
break; /* => 8 MB */
|
||||
#if 0 /* enable when device IDs are available */
|
||||
|
||||
case (FLASH_WORD_SIZE)AMD_ID_LV320B:
|
||||
info->flash_id += FLASH_AM320B;
|
||||
info->sector_count = 67;
|
||||
info->size = 0x00400000;
|
||||
break; /* => 4 MB */
|
||||
#endif
|
||||
case (FLASH_WORD_SIZE)SST_ID_xF800A:
|
||||
info->flash_id += FLASH_SST800A;
|
||||
info->sector_count = 16;
|
||||
info->size = 0x00100000;
|
||||
break; /* => 1 MB */
|
||||
case (FLASH_WORD_SIZE)INTEL_ID_28F320C3T:
|
||||
info->flash_id += FLASH_INTEL320T;
|
||||
info->sector_count = 71;
|
||||
info->size = 0x00400000;
|
||||
break; /* => 4 MB */
|
||||
|
||||
|
||||
case (FLASH_WORD_SIZE)SST_ID_xF160A:
|
||||
info->flash_id += FLASH_SST160A;
|
||||
info->sector_count = 32;
|
||||
info->size = 0x00200000;
|
||||
break; /* => 2 MB */
|
||||
|
||||
default:
|
||||
info->flash_id = FLASH_UNKNOWN;
|
||||
return (0); /* => no or unknown flash */
|
||||
|
||||
}
|
||||
/* base address calculation */
|
||||
base=0-info->size;
|
||||
/* set up sector start address table */
|
||||
if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
|
||||
(info->flash_id == FLASH_AM040) ||
|
||||
(info->flash_id == FLASH_AM640U)){
|
||||
for (i = 0; i < info->sector_count; i++)
|
||||
info->start[i] = base + (i * 0x00010000);
|
||||
}
|
||||
else {
|
||||
if (info->flash_id & FLASH_BTYPE) {
|
||||
/* set sector offsets for bottom boot block type */
|
||||
info->start[0] = base + 0x00000000;
|
||||
info->start[1] = base + 0x00004000;
|
||||
info->start[2] = base + 0x00006000;
|
||||
info->start[3] = base + 0x00008000;
|
||||
for (i = 4; i < info->sector_count; i++)
|
||||
info->start[i] = base + (i * 0x00010000) - 0x00030000;
|
||||
}
|
||||
else {
|
||||
/* set sector offsets for top boot block type */
|
||||
i = info->sector_count - 1;
|
||||
if(info->sector_count==71) {
|
||||
|
||||
info->start[i--] = base + info->size - 0x00002000;
|
||||
info->start[i--] = base + info->size - 0x00004000;
|
||||
info->start[i--] = base + info->size - 0x00006000;
|
||||
info->start[i--] = base + info->size - 0x00008000;
|
||||
info->start[i--] = base + info->size - 0x0000A000;
|
||||
info->start[i--] = base + info->size - 0x0000C000;
|
||||
info->start[i--] = base + info->size - 0x0000E000;
|
||||
for (; i >= 0; i--)
|
||||
info->start[i] = base + i * 0x000010000;
|
||||
}
|
||||
else {
|
||||
info->start[i--] = base + info->size - 0x00004000;
|
||||
info->start[i--] = base + info->size - 0x00006000;
|
||||
info->start[i--] = base + info->size - 0x00008000;
|
||||
for (; i >= 0; i--)
|
||||
info->start[i] = base + i * 0x00010000;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* check for protected sectors */
|
||||
for (i = 0; i < info->sector_count; i++) {
|
||||
/* read sector protection at sector address, (A7 .. A0) = 0x02 */
|
||||
/* D0 = 1 if protected */
|
||||
addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
|
||||
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
|
||||
info->protect[i] = 0;
|
||||
else
|
||||
info->protect[i] = addr2[2] & 1;
|
||||
}
|
||||
|
||||
/*
|
||||
* Prevent writes to uninitialized FLASH.
|
||||
*/
|
||||
if (info->flash_id != FLASH_UNKNOWN) {
|
||||
addr2 = (FLASH_WORD_SIZE *)info->start[0];
|
||||
*addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
|
||||
}
|
||||
return (info->size);
|
||||
}
|
||||
|
||||
|
||||
int wait_for_DQ7(flash_info_t *info, int sect)
|
||||
{
|
||||
ulong start, now, last;
|
||||
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
|
||||
|
||||
start = get_timer (0);
|
||||
last = start;
|
||||
while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
|
||||
if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
||||
printf ("Timeout\n");
|
||||
return ERR_TIMOUT;
|
||||
}
|
||||
/* show that we're waiting */
|
||||
if ((now - last) > 1000) { /* every second */
|
||||
putc ('.');
|
||||
last = now;
|
||||
}
|
||||
}
|
||||
return ERR_OK;
|
||||
}
|
||||
|
||||
int intel_wait_for_DQ7(flash_info_t *info, int sect)
|
||||
{
|
||||
ulong start, now, last, status;
|
||||
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
|
||||
|
||||
start = get_timer (0);
|
||||
last = start;
|
||||
while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
|
||||
if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
||||
printf ("Timeout\n");
|
||||
return ERR_TIMOUT;
|
||||
}
|
||||
/* show that we're waiting */
|
||||
if ((now - last) > 1000) { /* every second */
|
||||
putc ('.');
|
||||
last = now;
|
||||
}
|
||||
}
|
||||
status = addr[0] & (FLASH_WORD_SIZE)0x00280028;
|
||||
/* clear status register */
|
||||
addr[0] = (FLASH_WORD_SIZE)0x00500050;
|
||||
/* check status for block erase fail and VPP low */
|
||||
return (status == 0 ? ERR_OK : ERR_NOT_ERASED);
|
||||
}
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
*/
|
||||
|
||||
int flash_erase (flash_info_t *info, int s_first, int s_last)
|
||||
{
|
||||
volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
|
||||
volatile FLASH_WORD_SIZE *addr2;
|
||||
int flag, prot, sect;
|
||||
int i, rcode = 0;
|
||||
|
||||
|
||||
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) {
|
||||
printf ("Can't erase unknown flash type - aborted\n");
|
||||
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");
|
||||
}
|
||||
|
||||
/* Disable interrupts which might cause a timeout here */
|
||||
flag = disable_interrupts();
|
||||
|
||||
/* Start erase on unprotected sectors */
|
||||
for (sect = s_first; sect<=s_last; sect++) {
|
||||
if (info->protect[sect] == 0) { /* not protected */
|
||||
addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
|
||||
/* printf("Erasing sector %p\n", addr2); */ /* CLH */
|
||||
if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
|
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
|
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
|
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
|
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
|
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */
|
||||
for (i=0; i<50; i++)
|
||||
udelay(1000); /* wait 1 ms */
|
||||
rcode |= wait_for_DQ7(info, sect);
|
||||
}
|
||||
else {
|
||||
if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector */
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */
|
||||
intel_wait_for_DQ7(info, sect);
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00200020; /* sector erase */
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */
|
||||
rcode |= intel_wait_for_DQ7(info, sect);
|
||||
}
|
||||
else {
|
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
|
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
|
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
|
||||
addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
|
||||
addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */
|
||||
rcode |= wait_for_DQ7(info, sect);
|
||||
}
|
||||
}
|
||||
/*
|
||||
* Wait for each sector to complete, it's more
|
||||
* reliable. According to AMD Spec, you must
|
||||
* issue all erase commands within a specified
|
||||
* timeout. This has been seen to fail, especially
|
||||
* if printf()s are included (for debug)!!
|
||||
*/
|
||||
/* wait_for_DQ7(info, sect); */
|
||||
}
|
||||
}
|
||||
|
||||
/* re-enable interrupts if necessary */
|
||||
if (flag)
|
||||
enable_interrupts();
|
||||
|
||||
/* wait at least 80us - let's wait 1 ms */
|
||||
udelay (1000);
|
||||
|
||||
/* reset to read mode */
|
||||
addr = (FLASH_WORD_SIZE *)info->start[0];
|
||||
addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
|
||||
|
||||
if (!rcode)
|
||||
printf (" done\n");
|
||||
|
||||
return rcode;
|
||||
}
|
||||
|
||||
|
||||
void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt)
|
||||
{
|
||||
int i;
|
||||
volatile FLASH_WORD_SIZE *addr2;
|
||||
long c;
|
||||
c= (long)cnt;
|
||||
for(i=info->sector_count-1;i>0;i--)
|
||||
{
|
||||
if(addr>=info->start[i])
|
||||
break;
|
||||
}
|
||||
do {
|
||||
addr2 = (FLASH_WORD_SIZE *)(info->start[i]);
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector setup */
|
||||
addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* unlock sector */
|
||||
intel_wait_for_DQ7(info, i);
|
||||
i++;
|
||||
c-=(info->start[i]-info->start[i-1]);
|
||||
}while(c>0);
|
||||
}
|
||||
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
* Copy memory to flash, returns:
|
||||
* 0 - OK
|
||||
* 1 - write timeout
|
||||
* 2 - Flash not erased
|
||||
*/
|
||||
|
||||
int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
|
||||
{
|
||||
ulong cp, wp, data;
|
||||
int i, l, rc;
|
||||
|
||||
if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
|
||||
unlock_intel_sectors(info,addr,cnt);
|
||||
}
|
||||
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);
|
||||
}
|
||||
for (; i<4 && cnt>0; ++i) {
|
||||
data = (data << 8) | *src++;
|
||||
--cnt;
|
||||
++cp;
|
||||
}
|
||||
for (; cnt==0 && i<4; ++i, ++cp) {
|
||||
data = (data << 8) | (*(uchar *)cp);
|
||||
}
|
||||
|
||||
if ((rc = write_word(info, wp, data)) != 0) {
|
||||
return (rc);
|
||||
}
|
||||
wp += 4;
|
||||
}
|
||||
|
||||
/*
|
||||
* handle word aligned part
|
||||
*/
|
||||
while (cnt >= 4) {
|
||||
data = 0;
|
||||
for (i=0; i<4; ++i) {
|
||||
data = (data << 8) | *src++;
|
||||
}
|
||||
if ((rc = write_word(info, wp, data)) != 0) {
|
||||
return (rc);
|
||||
}
|
||||
wp += 4;
|
||||
if((wp % 0x10000)==0)
|
||||
printf("."); /* show Progress */
|
||||
cnt -= 4;
|
||||
}
|
||||
|
||||
if (cnt == 0) {
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*
|
||||
* handle unaligned tail bytes
|
||||
*/
|
||||
data = 0;
|
||||
for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
|
||||
data = (data << 8) | *src++;
|
||||
--cnt;
|
||||
}
|
||||
for (; i<4; ++i, ++cp) {
|
||||
data = (data << 8) | (*(uchar *)cp);
|
||||
}
|
||||
rc=write_word(info, wp, data);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
* Write a word to Flash, returns:
|
||||
* 0 - OK
|
||||
* 1 - write timeout
|
||||
* 2 - Flash not erased
|
||||
*/
|
||||
static FLASH_WORD_SIZE *read_val = (FLASH_WORD_SIZE *)0x200000;
|
||||
|
||||
static int write_word (flash_info_t *info, ulong dest, ulong data)
|
||||
{
|
||||
volatile FLASH_WORD_SIZE *addr2 = (volatile FLASH_WORD_SIZE *)(info->start[0]);
|
||||
volatile FLASH_WORD_SIZE *dest2 = (volatile FLASH_WORD_SIZE *)dest;
|
||||
volatile FLASH_WORD_SIZE *data2;
|
||||
ulong start;
|
||||
ulong *data_p;
|
||||
int flag;
|
||||
int i;
|
||||
|
||||
data_p = &data;
|
||||
data2 = (volatile FLASH_WORD_SIZE *)data_p;
|
||||
|
||||
/* Check if Flash is (sufficiently) erased */
|
||||
if ((*((volatile FLASH_WORD_SIZE *)dest) &
|
||||
(FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) {
|
||||
return (2);
|
||||
}
|
||||
/* Disable interrupts which might cause a timeout here */
|
||||
flag = disable_interrupts();
|
||||
for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++)
|
||||
{
|
||||
if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
|
||||
/* intel style writting */
|
||||
dest2[i] = (FLASH_WORD_SIZE)0x00500050;
|
||||
dest2[i] = (FLASH_WORD_SIZE)0x00400040;
|
||||
*read_val++ = data2[i];
|
||||
dest2[i] = data2[i];
|
||||
if (flag)
|
||||
enable_interrupts();
|
||||
/* data polling for D7 */
|
||||
start = get_timer (0);
|
||||
udelay(10);
|
||||
while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080)
|
||||
{
|
||||
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
|
||||
return (1);
|
||||
}
|
||||
dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */
|
||||
udelay(10);
|
||||
dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */
|
||||
if(dest2[i]!=data2[i])
|
||||
printf("Error at %p 0x%04X != 0x%04X\n",&dest2[i],dest2[i],data2[i]);
|
||||
}
|
||||
else {
|
||||
addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
|
||||
addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
|
||||
addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0;
|
||||
dest2[i] = data2[i];
|
||||
/* re-enable interrupts if necessary */
|
||||
if (flag)
|
||||
enable_interrupts();
|
||||
/* data polling for D7 */
|
||||
start = get_timer (0);
|
||||
while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) !=
|
||||
(data2[i] & (FLASH_WORD_SIZE)0x00800080)) {
|
||||
if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
||||
return (1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return (0);
|
||||
}
|
||||
|
||||
/*-----------------------------------------------------------------------
|
||||
*/
|
||||
Loading…
Reference in New Issue
Block a user