Hi all,
I’m working DM6446 board with uboot but it can’t erase NOR flash.
This is my platform.
DM6446( Davinci), NOR flash (P30, PF48F4000P0ZBQ0, I think it is same device to 28F256P30 series).
Flash 32MB, DDR2 256MB.
Used Configuration file is davinci_dvevm.h.
Blow was modified by me.
//==================
#define CONFIG_SYS_FLASH_SECT_SZ 0x20000 /* 128kb intel Flash */
//recent uboot version has binary size about 180k bytes. Thus it needs 0x40000.
#define CONFIG_ENV_OFFSET (CONFIG_SYS_FLASH_SECT_SZ*2)
//Strata has 259 sectors , not 256 sector.!!!!
#define CONFIG_SYS_MAX_FLASH_SECT (PHYS_FLASH_SIZE/CONFIG_SYS_FLASH_SECT_SZ+256)
//==========
Below has captured by my RS-232 monitor and my working screen.
But bootargs didn’t erase. By erase command , it can’t also erase NOR flash .
What is my mistake?
//================captured log
U-Boot 2009.11 (Mar 06 2010 - 16:03:15)
Cores: ARM 297 MHz, DSP 594 MHz
DDR: 162 MHz
I2C: ready
DRAM: 256 MB
Flash: 32 MB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Read from EEPROM @ 0x50 failed
Net: Ethernet PHY: LXT972 @ 0x01
U-Boot > printenv
bootargs=mem=120M console=ttyS0,115200n8 root=/dev/hda1 rw noinitrd ip=dhcp
bootcmd=setenv setboot setenv bootargs $(bootargs) video=dm64xxfb:output=$(videostd);run setboot; bootm 0x2050000
baudrate=115200
bootfile="uImage"
stdin=serial
stdout=serial
stderr=serial
videostd=ntsc
ver=U-Boot 2009.11 (Mar 06 2010 - 16:03:15)
Environment size: 325/131068 bytes
U-Boot > setenv bootargs
U-Boot > saveenv
Saving Environment to Flash...
Un-Protected 1 sectors
Erasing Flash...
.. done
Erased 1 sectors
Writing to Flash... done
Protected 1 sectors
U-Boot >
ç================reset by electrically….=================
U-Boot 2009.11 (Mar 06 2010 - 16:03:15)
Cores: ARM 297 MHz, DSP 594 MHz
DDR: 162 MHz
I2C: ready
DRAM: 256 MB
Flash: 32 MB
*** Warning - bad CRC, using default environment
In: serial
Out: serial
Err: serial
Read from EEPROM @ 0x50 failed
Net: Ethernet PHY: LXT972 @ 0x01
U-Boot > printenv
bootargs=mem=120M console=ttyS0,115200n8 root=/dev/hda1 rw noinitrd ip=dhcp
bootcmd=setenv setboot setenv bootargs $(bootargs) video=dm64xxfb:output=$(videostd);run setboot; bootm 0x2050000
baudrate=115200
bootfile="uImage"
stdin=serial
stdout=serial
stderr=serial
videostd=ntsc
ver=U-Boot 2009.11 (Mar 06 2010 - 16:03:15)
Environment size: 325/131068 bytes
U-Boot >