* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
/*
|
|
|
|
* (C) Copyright 2002
|
|
|
|
* MAZeT GmbH <www.mazet.de>
|
|
|
|
* Stephan Linz <linz@mazet.de>, <linz@li-pro.net>
|
|
|
|
*
|
|
|
|
* The most stuff comes from PPCBoot and Linux.
|
|
|
|
*
|
|
|
|
* IMMS gGmbH <www.imms.de>
|
|
|
|
* Thomas Elste <info@elste.org>
|
|
|
|
*
|
|
|
|
* Modifications for ModNET50 Board
|
|
|
|
*
|
|
|
|
* 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/netarm_registers.h>
|
|
|
|
|
|
|
|
#define SCR (*(volatile unsigned int *)(NETARM_GEN_MODULE_BASE + NETARM_GEN_SYSTEM_CONTROL))
|
|
|
|
|
|
|
|
#define ALIGN_ABORT_OFF SCR = SCR & ~NETARM_GEN_SYS_CFG_ALIGN_ABORT
|
|
|
|
#define ALIGN_ABORT_ON SCR = SCR | NETARM_GEN_SYS_CFG_ALIGN_ABORT
|
|
|
|
|
|
|
|
#define PROG_ADDR (0x555*2)
|
|
|
|
#define SETUP_ADDR (0x555*2)
|
|
|
|
#define ID_ADDR (0x555*2)
|
|
|
|
#define UNLOCK_ADDR1 (0x555*2)
|
|
|
|
#define UNLOCK_ADDR2 (0x2AA*2)
|
|
|
|
|
|
|
|
#define UNLOCK_CMD1 (0xAA)
|
|
|
|
#define UNLOCK_CMD2 (0x55)
|
|
|
|
#define ERASE_SUSPEND_CMD (0xB0)
|
|
|
|
#define ERASE_RESUME_CMD (0x30)
|
|
|
|
#define RESET_CMD (0xF0)
|
|
|
|
#define ID_CMD (0x90)
|
|
|
|
#define SECERASE_CMD (0x30)
|
|
|
|
#define CHIPERASE_CMD (0x10)
|
|
|
|
#define PROG_CMD (0xa0)
|
|
|
|
#define SETUP_CMD (0x80)
|
|
|
|
|
|
|
|
#define DQ2 (0x04)
|
|
|
|
#define DQ3 (DQ2*2)
|
|
|
|
#define DQ5 (DQ3*4)
|
|
|
|
#define DQ6 (DQ5*2)
|
|
|
|
|
|
|
|
#define WRITE_UNLOCK(addr) { \
|
|
|
|
*(volatile __u16*)(addr + UNLOCK_ADDR1) = (__u16)UNLOCK_CMD1; \
|
|
|
|
*(volatile __u16*)(addr + UNLOCK_ADDR2) = (__u16)UNLOCK_CMD2; \
|
|
|
|
}
|
|
|
|
|
|
|
|
#define CONFIG_AM29_RESERVED (0)
|
|
|
|
#define K (1024)
|
|
|
|
#define MB (4)
|
|
|
|
|
|
|
|
#define CELL_SIZE (64*K)
|
|
|
|
#define DEVICE_SIZE (MB*K*K)
|
|
|
|
#define CELLS_PER_DEVICE (DEVICE_SIZE/CELL_SIZE)
|
|
|
|
#define RESERVED_CELLS (CONFIG_AM29_RESERVED*K)/CELL_SIZE
|
|
|
|
#define MAX_FLASH_DEVICES (1)
|
|
|
|
#define AVAIL_SIZE (DEVICE_SIZE*MAX_FLASH_DEVICES - RESERVED_CELLS*CELL_SIZE)
|
|
|
|
|
|
|
|
|
|
|
|
flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS];
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
static __u16 toggling_bits;
|
|
|
|
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
ulong flash_get_size (ulong baseaddr, flash_info_t * info)
|
|
|
|
{
|
|
|
|
short i;
|
|
|
|
__u16 flashtest;
|
|
|
|
|
|
|
|
/* Write auto select command sequence and test FLASH answer */
|
|
|
|
WRITE_UNLOCK (baseaddr);
|
|
|
|
*(volatile __u16 *) (baseaddr + ID_ADDR) = (__u16) ID_CMD;
|
|
|
|
flashtest /* manufacturer ID */ = *(volatile __u16 *) (baseaddr);
|
|
|
|
*(volatile __u16 *) (baseaddr + ID_ADDR) = (__u16) RESET_CMD;
|
|
|
|
|
|
|
|
switch ((__u32) ((flashtest << 16) + flashtest)) {
|
|
|
|
case AMD_MANUFACT:
|
|
|
|
info->flash_id = FLASH_MAN_AMD & FLASH_VENDMASK;
|
|
|
|
break;
|
|
|
|
case FUJ_MANUFACT:
|
|
|
|
info->flash_id = FLASH_MAN_FUJ & FLASH_VENDMASK;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
|
|
info->sector_count = 0;
|
|
|
|
info->size = 0;
|
|
|
|
return (0); /* no or unknown flash */
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Write auto select command sequence and test FLASH answer */
|
|
|
|
WRITE_UNLOCK (baseaddr);
|
|
|
|
*(volatile __u16 *) (baseaddr + ID_ADDR) = (__u16) ID_CMD;
|
|
|
|
flashtest /* device ID */ = *(volatile __u16 *) (baseaddr + 2);
|
|
|
|
*(volatile __u16 *) (baseaddr + ID_ADDR) = (__u16) RESET_CMD;
|
|
|
|
|
|
|
|
/* toggling_bits = (flashtest == TOSHIBA)?(DQ6):(DQ2|DQ6); */
|
|
|
|
toggling_bits = (DQ2 | DQ6);
|
|
|
|
|
|
|
|
switch ((__u32) ((flashtest << 16) + flashtest)) {
|
|
|
|
case AMD_ID_LV160B:
|
|
|
|
info->flash_id +=
|
|
|
|
(FLASH_AM160LV | FLASH_AM160B) & FLASH_TYPEMASK;
|
|
|
|
info->sector_count = CONFIG_SYS_MAX_FLASH_SECT;
|
|
|
|
info->size = CONFIG_SYS_FLASH_SIZE;
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
/* 1*16K Boot Block
|
|
|
|
2*8K Parameter Block
|
|
|
|
1*32K Small Main Block */
|
|
|
|
info->start[0] = baseaddr;
|
|
|
|
info->start[1] = baseaddr + 0x4000;
|
|
|
|
info->start[2] = baseaddr + 0x6000;
|
|
|
|
info->start[3] = baseaddr + 0x8000;
|
|
|
|
for (i = 1; i < info->sector_count; i++)
|
|
|
|
info->start[3 + i] = baseaddr + i * CONFIG_SYS_MAIN_SECT_SIZE;
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
break;
|
|
|
|
default:
|
|
|
|
info->flash_id = FLASH_UNKNOWN;
|
|
|
|
return (0); /* no or unknown flash */
|
|
|
|
}
|
|
|
|
|
|
|
|
for (i = 0; i < info->sector_count; i++) {
|
|
|
|
/* Write auto select command sequence and test FLASH answer */
|
|
|
|
WRITE_UNLOCK (info->start[i]);
|
|
|
|
*(volatile __u16 *) (info->start[i] + ID_ADDR) = (__u16) ID_CMD;
|
|
|
|
flashtest /* protected verify */ = *(volatile __u16 *) (info->start[i] + 4);
|
|
|
|
*(volatile __u16 *) (info->start[i] + ID_ADDR) = (__u16) RESET_CMD;
|
|
|
|
if (flashtest & 0x0001) {
|
|
|
|
info->protect[i] = 1; /* D0 = 1 if protected */
|
|
|
|
} else {
|
|
|
|
info->protect[i] = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return (info->size);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
ulong flash_init (void)
|
|
|
|
{
|
|
|
|
ulong size = 0;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* Init: no FLASHes known */
|
|
|
|
for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
flash_info[i].flash_id = FLASH_UNKNOWN;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Static FLASH Bank configuration here (only one bank) */
|
|
|
|
size = flash_get_size (CONFIG_SYS_FLASH_BASE, &flash_info[0]);
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
|
|
|
|
if (flash_info[0].flash_id == FLASH_UNKNOWN || size == 0) {
|
|
|
|
printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
|
|
|
|
size, size >> 20);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* protect monitor and environment sectors
|
|
|
|
*/
|
|
|
|
flash_protect (FLAG_PROTECT_SET,
|
|
|
|
CONFIG_SYS_FLASH_BASE,
|
|
|
|
CONFIG_SYS_FLASH_BASE + monitor_flash_len - 1,
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
&flash_info[0]);
|
|
|
|
|
|
|
|
flash_protect (FLAG_PROTECT_SET,
|
|
|
|
CONFIG_ENV_ADDR,
|
|
|
|
CONFIG_ENV_ADDR + CONFIG_ENV_SIZE - 1, &flash_info[0]);
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
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;
|
|
|
|
case FLASH_MAN_FUJ:
|
|
|
|
printf ("Fujitsu ");
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printf ("Unknown Vendor ");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
|
|
case FLASH_AMDL323B:
|
|
|
|
printf ("29DL323B (32 M, bottom sector)\n");
|
|
|
|
break;
|
|
|
|
case (FLASH_AM160LV | FLASH_AM160B):
|
|
|
|
printf ("29LV160BE (1M x 16, bottom sector)\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 % 4) == 0)
|
|
|
|
printf ("\n ");
|
|
|
|
printf (" S%02d @ 0x%08lX%s", i,
|
|
|
|
info->start[i], info->protect[i] ? " !" : " ");
|
|
|
|
}
|
|
|
|
printf ("\n");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
int flash_check_protection (flash_info_t * info, int s_first, int s_last)
|
|
|
|
{
|
|
|
|
int sect, prot = 0;
|
|
|
|
|
|
|
|
for (sect = s_first; sect <= s_last; sect++)
|
|
|
|
if (info->protect[sect])
|
|
|
|
prot++;
|
|
|
|
if (prot)
|
|
|
|
printf ("- can't erase %d protected sectors\n", prot);
|
|
|
|
return prot;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
int flash_check_erase_amd (ulong start)
|
|
|
|
{
|
|
|
|
__u16 v1, v2;
|
|
|
|
|
|
|
|
v1 = *(volatile __u16 *) (start);
|
|
|
|
v2 = *(volatile __u16 *) (start);
|
|
|
|
|
|
|
|
if (((v1 ^ v2) & toggling_bits) == toggling_bits) {
|
|
|
|
if (((v1 | v2) & DQ5) == DQ5) {
|
|
|
|
printf ("[DQ5] ");
|
|
|
|
/* OOPS: exceeded timing limits */
|
|
|
|
|
|
|
|
v1 = *(volatile __u16 *) (start);
|
|
|
|
v2 = *(volatile __u16 *) (start);
|
|
|
|
|
|
|
|
if (((v1 ^ v2) & toggling_bits) == toggling_bits) {
|
|
|
|
|
|
|
|
printf ("[%s] ",
|
|
|
|
((toggling_bits & (DQ2 | DQ6)) ==
|
|
|
|
(DQ2 | DQ6)) ? "DQ2,DQ6" : "DQ6");
|
|
|
|
|
|
|
|
/* OOPS: there is an erasure in progress,
|
|
|
|
* try to reset chip */
|
|
|
|
*(volatile __u16 *) (start) =
|
|
|
|
(__u16) RESET_CMD;
|
|
|
|
|
|
|
|
return 1; /* still busy */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return 1; /* still busy */
|
|
|
|
}
|
|
|
|
return 0; /* be free */
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
int flash_erase (flash_info_t * info, int s_first, int s_last)
|
|
|
|
{
|
|
|
|
int flag, sect, setup_offset = 0;
|
|
|
|
int rc = ERR_OK;
|
|
|
|
|
|
|
|
if (info->flash_id == FLASH_UNKNOWN) {
|
|
|
|
printf ("- missing\n");
|
|
|
|
return ERR_UNKNOWN_FLASH_TYPE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((s_first < 0) || (s_first > s_last)) {
|
|
|
|
printf ("- no sectors to erase\n");
|
|
|
|
return ERR_INVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (flash_check_protection (info, s_first, s_last))
|
|
|
|
return ERR_PROTECTED;
|
|
|
|
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
|
|
case FLASH_MAN_FUJ:
|
|
|
|
case FLASH_MAN_AMD:
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
|
|
case (FLASH_AM160LV | FLASH_AM160B):
|
|
|
|
setup_offset = UNLOCK_ADDR1; /* just the adress for setup_cmd differs */
|
|
|
|
case FLASH_AMDL323B:
|
|
|
|
/*
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
* 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);
|
|
|
|
|
|
|
|
if (info->protect[sect] == 0) {
|
|
|
|
/* not protected */
|
|
|
|
/* Write sector erase command sequence */
|
|
|
|
WRITE_UNLOCK (info->start[0]);
|
|
|
|
*(volatile __u16 *) (info->start[0] +
|
|
|
|
setup_offset) =
|
|
|
|
(__u16) SETUP_CMD;
|
|
|
|
WRITE_UNLOCK (info->start[0]);
|
|
|
|
*(volatile __u16 *) (info->
|
|
|
|
start[sect]) =
|
|
|
|
(__u16) SECERASE_CMD;
|
|
|
|
|
|
|
|
/* wait some time */
|
|
|
|
reset_timer_masked ();
|
|
|
|
while (get_timer_masked () < 1000) {
|
|
|
|
}
|
|
|
|
|
|
|
|
/* arm simple, non interrupt dependent timer */
|
|
|
|
reset_timer_masked ();
|
|
|
|
while (flash_check_erase_amd (info->start[sect])) {
|
|
|
|
if (get_timer_masked () > CONFIG_SYS_FLASH_ERASE_TOUT) {
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
printf ("timeout!\n");
|
|
|
|
/* OOPS: reach timeout,
|
|
|
|
* try to reset chip
|
|
|
|
*/
|
|
|
|
*(volatile __u16 *) (info-> start[sect]) = (__u16) RESET_CMD;
|
|
|
|
rc = ERR_TIMOUT;
|
|
|
|
goto outahere_323B;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
printf ("ok.\n");
|
|
|
|
} else {
|
|
|
|
printf ("protected!\n");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (ctrlc ())
|
|
|
|
printf ("User Interrupt!\n");
|
|
|
|
outahere_323B:
|
|
|
|
/* allow flash to settle - wait 10 ms */
|
|
|
|
udelay_masked (10000);
|
|
|
|
if (flag)
|
|
|
|
enable_interrupts ();
|
|
|
|
return rc;
|
|
|
|
default:
|
|
|
|
printf ("- unknown chip type\n");
|
|
|
|
return ERR_UNKNOWN_FLASH_TYPE;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
printf ("- unknown vendor ");
|
|
|
|
return ERR_UNKNOWN_FLASH_VENDOR;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
*/
|
|
|
|
int flash_check_write_amd (ulong dest)
|
|
|
|
{
|
|
|
|
__u16 v1, v2;
|
|
|
|
|
|
|
|
v1 = *(volatile __u16 *) (dest);
|
|
|
|
v2 = *(volatile __u16 *) (dest);
|
|
|
|
|
|
|
|
/* DQ6 toggles during write */
|
|
|
|
if (((v1 ^ v2) & DQ6) == DQ6) {
|
|
|
|
if (((v1 | v2) & DQ5) == DQ5) {
|
|
|
|
printf ("[DQ5] @ %08lX\n", dest);
|
|
|
|
|
|
|
|
/* OOPS: exceeded timing limits,
|
|
|
|
* try to reset chip */
|
|
|
|
*(volatile __u16 *) (dest) = (__u16) RESET_CMD;
|
|
|
|
return 0; /* be free */
|
|
|
|
}
|
|
|
|
return 1; /* still busy */
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0; /* be free */
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
* Copy memory to flash
|
|
|
|
*/
|
|
|
|
static int write_word (flash_info_t * info, ulong dest, ushort data)
|
|
|
|
{
|
|
|
|
int rc = ERR_OK;
|
|
|
|
int flag;
|
|
|
|
|
|
|
|
/* Check if Flash is (sufficiently) erased */
|
|
|
|
if ((*(__u16 *) (dest) & data) != data)
|
|
|
|
return ERR_NOT_ERASED;
|
|
|
|
|
|
|
|
/*
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
* 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 ();
|
|
|
|
|
|
|
|
/* Write program command sequence */
|
|
|
|
WRITE_UNLOCK (info->start[0]);
|
|
|
|
|
|
|
|
/* Flash dependend program seqence */
|
|
|
|
switch (info->flash_id & FLASH_VENDMASK) {
|
|
|
|
case FLASH_MAN_FUJ:
|
|
|
|
case FLASH_MAN_AMD:
|
|
|
|
switch (info->flash_id & FLASH_TYPEMASK) {
|
|
|
|
case (FLASH_AM160LV | FLASH_AM160B):
|
|
|
|
*(volatile __u16 *) (info->start[0] + UNLOCK_ADDR1) =
|
|
|
|
(__u16) PROG_CMD;
|
|
|
|
*(volatile __u16 *) (dest) = (__u16) data;
|
|
|
|
break;
|
|
|
|
case FLASH_AMDL323B:
|
|
|
|
*(volatile __u16 *) (dest) = (__u16) PROG_CMD;
|
|
|
|
*(volatile __u16 *) (dest) = (__u16) data;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* arm simple, non interrupt dependent timer */
|
|
|
|
reset_timer_masked ();
|
|
|
|
|
|
|
|
while (flash_check_write_amd (dest)) {
|
|
|
|
if (get_timer_masked () > CONFIG_SYS_FLASH_WRITE_TOUT) {
|
* Patch by Thomas Elste, 10 Feb 2004:
Add support for NET+50 CPU and ModNET50 board
* Patch by Sam Song, 10 Feb 2004:
Fix typos in cfi_flash.c
* Patch by Leon Kukovec, 10 Feb 2004
Fixed long dir entry slot id calculation in get_vfatname
* Patch by Robin Gilks, 10 Feb 2004:
add "itest" command (operators: -eq, -ne, -lt, -gt, -le, -ge, ==,
!=, <>, <, >, <=, >=)
21 years ago
|
|
|
printf ("timeout! @ %08lX\n", dest);
|
|
|
|
/* OOPS: reach timeout,
|
|
|
|
* try to reset chip */
|
|
|
|
*(volatile __u16 *) (dest) = (__u16) RESET_CMD;
|
|
|
|
|
|
|
|
rc = ERR_TIMOUT;
|
|
|
|
goto outahere_323B;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check if Flash was (accurately) written */
|
|
|
|
if (*(__u16 *) (dest) != data)
|
|
|
|
rc = ERR_PROG_ERROR;
|
|
|
|
|
|
|
|
outahere_323B:
|
|
|
|
if (flag)
|
|
|
|
enable_interrupts ();
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*-----------------------------------------------------------------------
|
|
|
|
* Copy memory to flash.
|
|
|
|
*/
|
|
|
|
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
|
|
|
|
{
|
|
|
|
ulong cp, wp;
|
|
|
|
ushort data;
|
|
|
|
int l;
|
|
|
|
int i, rc;
|
|
|
|
|
|
|
|
wp = (addr & ~1); /* 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 << 8);
|
|
|
|
}
|
|
|
|
for (; i < 2 && cnt > 0; ++i) {
|
|
|
|
data = (data >> 8) | (*src++ << 8);
|
|
|
|
--cnt;
|
|
|
|
++cp;
|
|
|
|
}
|
|
|
|
for (; cnt == 0 && i < 2; ++i, ++cp) {
|
|
|
|
data = (data >> 8) | (*(uchar *) cp << 8);
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((rc = write_word (info, wp, data)) != 0) {
|
|
|
|
return (rc);
|
|
|
|
}
|
|
|
|
wp += 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* handle word aligned part
|
|
|
|
*/
|
|
|
|
while (cnt >= 2) {
|
|
|
|
data = *((ushort *) src);
|
|
|
|
if ((rc = write_word (info, wp, data)) != 0)
|
|
|
|
return (rc);
|
|
|
|
src += 2;
|
|
|
|
wp += 2;
|
|
|
|
cnt -= 2;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (cnt == 0)
|
|
|
|
return ERR_OK;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* handle unaligned tail bytes
|
|
|
|
*/
|
|
|
|
data = 0;
|
|
|
|
for (i = 0, cp = wp; i < 2 && cnt > 0; ++i, ++cp) {
|
|
|
|
data = (data >> 8) | (*src++ << 8);
|
|
|
|
--cnt;
|
|
|
|
}
|
|
|
|
for (; i < 2; ++i, ++cp) {
|
|
|
|
data = (data >> 8) | (*(uchar *) cp << 8);
|
|
|
|
}
|
|
|
|
|
|
|
|
return write_word (info, wp, data);
|
|
|
|
}
|