* [U-Boot-Users] Using at91 with a different parallel flash, request for help
2006-06-12 6:27 ` Marco Cavallini
@ 2006-06-12 17:33 ` Roman Kolesnikov
2006-06-12 19:07 ` Roman Kolesnikov
2006-06-13 5:04 ` Roman Kolesnikov
2 siblings, 0 replies; 9+ messages in thread
From: Roman Kolesnikov @ 2006-06-12 17:33 UTC (permalink / raw)
To: u-boot
Hello Marco,
I am including the memory driver for the newer chip as well as the
config file. The config file has been changed more than once, since I am
trying to port the uboot 1.1.4 right. This is a current config file as
of now.
/**
* OUR FLASHY FLASH DRIVER
**/
#include <common.h>
#define MEM_FLASH_BASE (*(volatile u16 *)(CFG_FLASH_BASE))
#define PRODUCT_ID_IN_CODE 0x90
#define COMMAND_READ 0xFF
#define COMMAND_SECTOR_UNLOCK_I 0x60
#define COMMAND_SECTOR_UNLOCK_II 0xD0
#define COMMAND_SECTOR_ERASE_SETUP 0x20
#define COMMAND_GENERAL_ERASE_CONFIRM 0xD0
#define COMMAND_READ_STATUS_REGISTER 0x70
#define COMMAND_WORD_PROGRAM_40 0x40
#define ATM_ID_BV6416C 0xC5
#define READY 1
#define ERR 2
#define TMO 4
/**
* CFG_FLASH_BASE comes from include/configs/at91rm9200dk.h
* CFG_MAX_FLASH_BANKS comes from include/configs/at91rm9200dk.h
* PHYS_FLASH_1 comes from include/configs/at91rm9200dk.h
**/
flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
/* Flash Organization Structure */
typedef struct OrgDef
{
unsigned int sector_number;
unsigned int sector_size;
} OrgDef;
OrgDef OrgAT49BV6416C[] =
{
{ 8, 8*1024 }, /* 8 * 8 kBytes sectors */
{ 127, 64*1024 }, /* 127 * 64 kBytes sectors */
};
void flash_identification (flash_info_t * info)
{
volatile u16 manuf_code, device_code, add_device_code;
MEM_FLASH_BASE = PRODUCT_ID_IN_CODE;
manuf_code = *(volatile u16 *) CFG_FLASH_BASE;
device_code = *(volatile u16 *) (CFG_FLASH_BASE + 2);
add_device_code = *(volatile u16 *) (CFG_FLASH_BASE + (3 << 1));
/* Vendor type */
info->flash_id = ATM_MANUFACT & FLASH_VENDMASK;
printf ("Atmel: ");
if ((device_code & FLASH_TYPEMASK) == (ATM_ID_BV6416C & FLASH_TYPEMASK))
{
info->flash_id |= ATM_ID_BV6416C & FLASH_TYPEMASK;
printf ("AT49BV6416C (64Mbit)\n");
}
}
ushort flash_number_sector(OrgDef *pOrgDef, unsigned int nb_blocks)
{
int i, nb_sectors = 0;
for (i=0; i<nb_blocks; i++){
nb_sectors += pOrgDef[i].sector_number;
}
return nb_sectors;
}
void flash_unlock_sector(flash_info_t * info, unsigned int sector)
{
volatile u16 *addr = (volatile u16 *) (info->start[sector]);
*addr = COMMAND_SECTOR_UNLOCK_I;
*addr = COMMAND_SECTOR_UNLOCK_II;
}
ulong flash_init (void)
{
int i, j, k;
unsigned int flash_nb_blocks, sector;
unsigned int start_address;
OrgDef *pOrgDef;
ulong size = 0;
for (i = 0; i < CFG_MAX_FLASH_BANKS; i++)
{
ulong flashbase = 0;
flash_identification (&flash_info[i]);
if ((flash_info[i].flash_id & FLASH_TYPEMASK) == (ATM_ID_BV6416C & FLASH_TYPEMASK))
{ /* AT49BV6416C Flash */
pOrgDef = OrgAT49BV6416C;
flash_nb_blocks = sizeof (OrgAT49BV6416C) / sizeof (OrgDef);
} else
{
flash_nb_blocks = 0;
}
flash_info[i].sector_count = flash_number_sector(pOrgDef, flash_nb_blocks);
memset (flash_info[i].protect, 0, flash_info[i].sector_count);
if (i == 0)
flashbase = PHYS_FLASH_1;
else
panic ("error: configured too many flash banks!\n");
sector = 0;
start_address = flashbase;
flash_info[i].size = 0;
for (j = 0; j < flash_nb_blocks; j++) {
for (k = 0; k < pOrgDef[j].sector_number; k++) {
flash_info[i].start[sector++] = start_address;
start_address += pOrgDef[j].sector_size;
flash_info[i].size += pOrgDef[j].sector_size;
}
}
size += flash_info[i].size;
/* Unlock all sectors@reset */
for (j=0; j<flash_info[i].sector_count; j++){
flash_unlock_sector(&flash_info[i], j);
}
}
/* Protect binary boot image */
flash_protect (FLAG_PROTECT_SET,
CFG_FLASH_BASE,
CFG_FLASH_BASE + CFG_BOOT_SIZE - 1, &flash_info[0]);
/* Protect environment variables */
flash_protect (FLAG_PROTECT_SET,
CFG_ENV_ADDR,
CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
/* Protect U-Boot gzipped image */
flash_protect (FLAG_PROTECT_SET,
CFG_U_BOOT_BASE,
CFG_U_BOOT_BASE + CFG_U_BOOT_SIZE - 1, &flash_info[0]);
return size;
}
void flash_print_info (flash_info_t * info)
{
int i;
switch (info->flash_id & FLASH_VENDMASK)
{
case (ATM_MANUFACT & FLASH_VENDMASK):
printf ("Atmel: ");
break;
default:
printf ("Unknown Vendor ");
break;
}
switch (info->flash_id & FLASH_TYPEMASK)
{
case (ATM_ID_BV6416C & FLASH_TYPEMASK):
printf ("AT49BV6416 (64Mbit)\n");
break;
default:
printf ("Unknown Chip Type\n");
return;
}
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");
}
int flash_erase (flash_info_t * info, int s_first, int s_last)
{
u16 result;
int iflag, cflag, prot, sect;
int rc = ERR_OK;
int chip1;
/* first look for protection bits */
if (info->flash_id == FLASH_UNKNOWN)
return ERR_UNKNOWN_FLASH_TYPE;
if ((s_first < 0) || (s_first > s_last)) {
return ERR_INVAL;
}
if ((info->flash_id & FLASH_VENDMASK) !=
(ATM_MANUFACT & FLASH_VENDMASK)) {
return ERR_UNKNOWN_FLASH_VENDOR;
}
prot = 0;
for (sect = s_first; sect <= s_last; ++sect)
{
if (info->protect[sect])
{
prot++;
sect = s_last;
/* BREAK */
}
}
if (prot)
return ERR_PROTECTED;
/*
* 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 ();
/* Start erase on unprotected sectors */
for (sect = s_first; sect <= s_last && !ctrlc (); sect++)
{
printf ("Erasing sector %2d ... ", sect);
/* arm simple, non interrupt dependent timer */
reset_timer_masked ();
if (info->protect[sect] == 0)
{
/* not protected */
volatile u16 *addr = (volatile u16 *) (info->start[sect]);
*addr = COMMAND_SECTOR_ERASE_SETUP;
*addr = COMMAND_GENERAL_ERASE_CONFIRM;
/* wait until flash is ready */
chip1 = 0;
do
{
*addr = COMMAND_READ_STATUS_REGISTER;
result = *addr;
/* check timeout */
if (get_timer_masked () > CFG_FLASH_ERASE_TOUT)
{
chip1 = TMO;
break;
}
if( result&0x0080 )
{
chip1 = READY;
}
}
while (!chip1);
*addr = COMMAND_READ;
if (chip1 == ERR)
{
rc = ERR_PROG_ERROR;
}
else if (chip1 == TMO)
{
rc = ERR_TIMOUT;
}
else
{
printf ("ok.\n");
}
}
else
{
/* it was protected */
printf ("protected!\n");
}
}
if (ctrlc ()) printf ("User Interrupt!\n");
/* allow flash to settle - wait 10 ms */
udelay_masked (10000);
if (iflag)
enable_interrupts ();
if (cflag)
icache_enable ();
return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash
*/
volatile static int write_word (flash_info_t * info, ulong dest, ulong data)
{
volatile u16 *addr = (volatile u16 *) dest;
ulong result;
int rc = ERR_OK;
int cflag, iflag;
int chip1;
/*
* Check if Flash is (sufficiently) erased
*/
result = *addr;
if (result != 0xFF)
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 ();
*addr = COMMAND_WORD_PROGRAM_40;
*addr = data;
/* arm simple, non interrupt dependent timer */
reset_timer_masked ();
/* wait until flash is ready */
chip1 = 0;
do
{
*addr = COMMAND_READ_STATUS_REGISTER;
result = *addr;
/* check timeout */
if (get_timer_masked () > CFG_FLASH_ERASE_TOUT)
{
chip1 = TMO;
break;
}
if( result&0x0080 )
{
chip1 = READY;
}
} while (!chip);
*addr = COMMAND_READ;
if (chip1 == TMO || *addr != data)
rc = ERR_PROG_ERROR;
if (iflag)
enable_interrupts ();
if (cflag)
icache_enable ();
return rc;
}
/*-----------------------------------------------------------------------
* Copy memory to flash.
*/
int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
{
ulong wp, data;
int rc;
if (addr & 1) {
printf ("unaligned destination not supported\n");
return ERR_ALIGN;
};
if ((int) src & 1) {
printf ("unaligned source not supported\n");
return ERR_ALIGN;
};
wp = addr;
while (cnt >= 2) {
data = *((volatile u16 *) src);
if ((rc = write_word (info, wp, data)) != 0) {
return (rc);
}
src += 2;
wp += 2;
cnt -= 2;
}
if (cnt == 1) {
data = (*((volatile u8 *) src)) | (*((volatile u8 *) (wp + 1)) <<
8);
if ((rc = write_word (info, wp, data)) != 0) {
return (rc);
}
src += 1;
wp += 1;
cnt -= 1;
};
return ERR_OK;
}
------------------------------------------------------------------------
/*
* Rick Bronson <rick@efn.org>
*
* Configuation settings for the AT91RM9200DK 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
*/
#ifndef __CONFIG_H
#define __CONFIG_H
/*
* If we are developing, we might want to start armboot from ram
* so we MUST NOT initialize critical regs like mem-timing ...
*/
#define CONFIG_INIT_CRITICAL /* undef for developing */
/* ARM asynchronous clock */
#define AT91C_MAIN_CLOCK 179712000 /* from 18.432 MHz crystal (18432000 / 4 * 39) */
#define AT91C_MASTER_CLOCK 59904000 /* peripheral clock (AT91C_MASTER_CLOCK / 3) */
/* #define AT91C_MASTER_CLOCK 44928000 */ /* peripheral clock (AT91C_MASTER_CLOCK / 4) */
#define AT91_SLOW_CLOCK 32768 /* slow clock */
#define CONFIG_AT91RM9200DK 1 /* on an AT91RM9200DK Board */
#undef CONFIG_USE_IRQ /* we don't need IRQ/FIQ stuff */
#define CONFIG_CMDLINE_TAG 1 /* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS 1
#define CONFIG_INITRD_TAG 1
/* define this to include the functionality of boot.bin in u-boot */
#define CONFIG_BOOTBINFUNC 1
/*
* Size of malloc() pool
*/
#define CFG_MALLOC_LEN (CFG_ENV_SIZE + 128*1024)
#define CFG_GBL_DATA_SIZE 128 /* size in bytes reserved for initial data */
#define CONFIG_BAUDRATE 115200
#define CFG_AT91C_BRGR_DIVISOR 33 /* hardcode so no __divsi3 : AT91C_MASTER_CLOCK / baudrate / 16 */
/*
* Hardware drivers
*/
/* define one of these to choose the DBGU, USART0 or USART1 as console */
#define CONFIG_DBGU
#undef CONFIG_USART0
#undef CONFIG_USART1
#undef CONFIG_HWFLOW /* don't include RTS/CTS flow control support */
#undef CONFIG_MODEM_SUPPORT /* disable modem initialization stuff */
#define CONFIG_BOOTDELAY 3
/* #define CONFIG_ENV_OVERWRITE 1 */
#define CONFIG_COMMANDS \
((CONFIG_CMD_DFL ) & \
~(CFG_CMD_BDI | \
CFG_CMD_IMI | \
CFG_CMD_AUTOSCRIPT | \
CFG_CMD_FPGA | \
CFG_CMD_MISC | \
CFG_CMD_LOADS | \
CFG_CMD_NET))
/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include <cmd_confdefs.h>
#if 0
#define CFG_MAX_NAND_DEVICE 1 /* Max number of NAND devices */
#define SECTORSIZE 512
#define ADDR_COLUMN 1
#define ADDR_PAGE 2
#define ADDR_COLUMN_PAGE 3
#define NAND_ChipID_UNKNOWN 0x00
#define NAND_MAX_FLOORS 1
#define NAND_MAX_CHIPS 1
#define AT91_SMART_MEDIA_ALE (1 << 22) /* our ALE is AD22 */
#define AT91_SMART_MEDIA_CLE (1 << 21) /* our CLE is AD21 */
#define NAND_DISABLE_CE(nand) do { *AT91C_PIOC_SODR = AT91C_PIO_PC0;} while(0)
#define NAND_ENABLE_CE(nand) do { *AT91C_PIOC_CODR = AT91C_PIO_PC0;} while(0)
#define NAND_WAIT_READY(nand) while (!(*AT91C_PIOC_PDSR & AT91C_PIO_PC2))
#define WRITE_NAND_COMMAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_CLE) = (__u8)(d); } while(0)
#define WRITE_NAND_ADDRESS(d, adr) do{ *(volatile __u8 *)((unsigned long)adr | AT91_SMART_MEDIA_ALE) = (__u8)(d); } while(0)
#define WRITE_NAND(d, adr) do{ *(volatile __u8 *)((unsigned long)adr) = (__u8)d; } while(0)
#define READ_NAND(adr) ((volatile unsigned char)(*(volatile __u8 *)(unsigned long)adr))
/* the following are NOP's in our implementation */
#define NAND_CTL_CLRALE(nandptr)
#define NAND_CTL_SETALE(nandptr)
#define NAND_CTL_CLRCLE(nandptr)
#define NAND_CTL_SETCLE(nandptr)
#endif
#define CONFIG_NR_DRAM_BANKS 1
#define PHYS_SDRAM 0x20000000
#define PHYS_SDRAM_SIZE 0x2000000 /* 32 megs */
#define CFG_MEMTEST_START PHYS_SDRAM
#define CFG_MEMTEST_END CFG_MEMTEST_START + PHYS_SDRAM_SIZE - 262144
#if 0
#define CONFIG_DRIVER_ETHER
#define CONFIG_NET_RETRY_COUNT 20
#define CONFIG_AT91C_USE_RMII
#define CONFIG_HAS_DATAFLASH 1
#define CFG_SPI_WRITE_TOUT (5*CFG_HZ)
#define CFG_MAX_DATAFLASH_BANKS 2
#define CFG_MAX_DATAFLASH_PAGES 16384
#define CFG_DATAFLASH_LOGIC_ADDR_CS0 0xC0000000 /* Logical adress for CS0 */
#define CFG_DATAFLASH_LOGIC_ADDR_CS3 0xD0000000 /* Logical adress for CS3 */
#endif
#define PHYS_FLASH_1 0x10000000
#define PHYS_FLASH_SIZE 0x800000 /* 8 megs main flash */
#define CFG_FLASH_BASE PHYS_FLASH_1
#define CFG_MAX_FLASH_BANKS 1
#define CFG_MAX_FLASH_SECT 256
#define CFG_FLASH_ERASE_TOUT (2*CFG_HZ) /* Timeout for Flash Erase */
#define CFG_FLASH_WRITE_TOUT (2*CFG_HZ) /* Timeout for Flash Write */
#undef CFG_ENV_IS_IN_DATAFLASH
#ifdef CFG_ENV_IS_IN_DATAFLASH
#define CFG_ENV_OFFSET 0x20000
#define CFG_ENV_ADDR (CFG_DATAFLASH_LOGIC_ADDR_CS0 + CFG_ENV_OFFSET)
#define CFG_ENV_SIZE 0x2000 /* 0x8000 */
#else
#define CFG_ENV_IS_IN_FLASH 1
#ifndef CONFIG_BOOTBINFUNC
#define CFG_ENV_ADDR (PHYS_FLASH_1 + 0x20000) /* after u-boot.bin */
#define CFG_ENV_SIZE 0x10000 /* sectors are 64K here */
#else
#define CFG_ENV_ADDR (PHYS_FLASH_1 + 0xe000) /* between boot.bin and u-boot.bin.gz */
#define CFG_ENV_SIZE 0x2000 /* 0x8000 */
#endif
#endif
#define CFG_LOAD_ADDR 0x21000000 /* default load address */
#ifndef CONFIG_BOOTBINFUNC
#define CFG_BOOT_SIZE 0x00 /* 0 KBytes */
#define CFG_U_BOOT_BASE PHYS_FLASH_1
#define CFG_U_BOOT_SIZE 0x20000 /* 128 KBytes */
#else
#define CFG_BOOT_SIZE 0x6000 /* 24 KBytes */
#define CFG_U_BOOT_BASE (PHYS_FLASH_1 + 0x10000)
#define CFG_U_BOOT_SIZE 0x10000 /* 64 KBytes */
#endif
#define CFG_BAUDRATE_TABLE {115200 , 19200, 38400, 57600, 9600 }
#define CFG_PROMPT "U-Boot 1.1.2 w/boot.bin> " /* Monitor Command Prompt */
#define CFG_CBSIZE 256 /* Console I/O Buffer Size */
#define CFG_MAXARGS 16 /* max number of command args */
#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
#ifndef __ASSEMBLY__
/*-----------------------------------------------------------------------
* Board specific extension for bd_info
*
* This structure is embedded in the global bd_info (bd_t) structure
* and can be used by the board specific code (eg board/...)
*/
struct bd_info_ext {
/* helper variable for board environment handling
*
* env_crc_valid == 0 => uninitialised
* env_crc_valid > 0 => environment crc in flash is valid
* env_crc_valid < 0 => environment crc in flash is invalid
*/
int env_crc_valid;
};
#endif
#define CFG_HZ 1000
#define CFG_HZ_CLOCK AT91C_MASTER_CLOCK/2 /* AT91C_TC0_CMR is implicitly set to */
/* AT91C_TC_TIMER_DIV1_CLOCK */
#define CONFIG_STACKSIZE (32*1024) /* regular stack */
#ifdef CONFIG_USE_IRQ
#error CONFIG_USE_IRQ not supported
#endif
#endif
Marco Cavallini wrote:
> Roman Kolesnikov ha scritto:
>
>> Hello everyone,
>>
>> I found the difference (with the help of Koan) in the command list
>> and cycles for the newer Atmel chip. I have a new driver now to
>> access the flash, and it works ok. However, I still have problem with
>> UBoot1.1.4. When I load UBoot originally into flash and run,
>> everything works well. However, when I restart the uboot from flash
>> again, I think uboot overwrites something in the environment
>> variables. My environment variables become corrupt. For instance the
>> very first sign is invalid input, output, and debug settigns on the
>> second start up.
>>
>> When I print the environment variables, I get about 8K of garbage
>> data. I wonder what could be causing my corruption. It only occurs in
>> the environment variables.
>>
>
> Hi Roman,
> Please show us your include/configs/at91rm9200dk.h
>
> Ciao
^ permalink raw reply [flat|nested] 9+ messages in thread* [U-Boot-Users] Using at91 with a different parallel flash, request for help
2006-06-12 6:27 ` Marco Cavallini
2006-06-12 17:33 ` Roman Kolesnikov
2006-06-12 19:07 ` Roman Kolesnikov
@ 2006-06-13 5:04 ` Roman Kolesnikov
2006-06-13 7:05 ` Wolfgang Denk
2 siblings, 1 reply; 9+ messages in thread
From: Roman Kolesnikov @ 2006-06-13 5:04 UTC (permalink / raw)
To: u-boot
Marco Cavallini wrote:
> Roman Kolesnikov ha scritto:
>
>> Hello everyone,
>>
>> I found the difference (with the help of Koan) in the command list
>> and cycles for the newer Atmel chip. I have a new driver now to
>> access the flash, and it works ok. However, I still have problem with
>> UBoot1.1.4. When I load UBoot originally into flash and run,
>> everything works well. However, when I restart the uboot from flash
>> again, I think uboot overwrites something in the environment
>> variables. My environment variables become corrupt. For instance the
>> very first sign is invalid input, output, and debug settigns on the
>> second start up.
>>
>> When I print the environment variables, I get about 8K of garbage
>> data. I wonder what could be causing my corruption. It only occurs in
>> the environment variables.
>>
>
> Hi Roman,
> Please show us your include/configs/at91rm9200dk.h
>
> Ciao
Marco,
Here are my latest results.
I load uboot 1.1.4 (lowlevel init is skipped) into ram through bootload.bin.
I execute uboot 1.1.4
I load uboot 1.1.4 (low level init is present) into ram
I copy uboot 1.1.4(low level present) into flash at 10000000
I reset with external boot juped
uboot 1.1.4 loads fine
I saveenv
I reboot
I get errors about crc and stdin,out and error
I do printenv, I get 65K of .
At this point I see that my env variables are corrupted.
Here is my other trial
I load kernel into ram
I copy (linux) kernel into flash
I copy kernel from flash back to ram
I execute kernel -> I get bad magic number
However, the same kernel runs from ram
Somehow my data is corrupted. But why and how does the original uboot
saved to flash is loading fine?
I am lost,
Roman
^ permalink raw reply [flat|nested] 9+ messages in thread