Re: No NAND access on AT91SAM9G20-EK

[Mickael Chazaux <mickael.chazaux@gmail.com>]

Hi,

2011/2/10 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>:
> Hi,
>
>        which ecc did u use before?

The ECC type used is NAND_ECC_HW, defined in file
arch/arm/boards/at91sam9260ek/init.c. I program the NAND using USB and
SAM-BA. I did not find a setting in SAM-BA to change the ECC type.

Changing the ECC to NAND_ECC_NONE in the above mentioned file makes
the NAND readable and my kernel boots, but this big fat warning ;-)
appears : NAND_ECC_NONE selected by board driver. This is not
recommended !!

Regards,

Mickael

>
> Best Regards,
> J.
> On 12:09 Thu 10 Feb     , Mickael Chazaux wrote:
>> Hi,
>>
>> I managed to compile Barebox for AT91SAM9G20-EK, and I can run it. However
>> it seems not capable of reading the NAND Flash.
>>
>> Output is at [1], my configuration is [2]. The "err -74" is EBADMSG, in
>> line 1057 of "file drivers/mtd/nand/nand_base.c"
>>
>> [1]
>> barebox 2011.02.0-00070-gc5dd4c4-dirty (Feb 10 2011 - 11:58:24)
>>
>> Board: Atmel at91sam9g20-ek
>> Clocks: CPU 792 MHz, master 132 MHz, main 18.432 MHz
>> NAND device: Manufacturer ID: 0xec, Chip ID: 0xda (Samsung NAND 256MiB
>> 3,3V 8-bit)
>> Scanning device for bad blocks
>> Bad eraseblock 1621 at 0x0caa0000
>> Malloc space: 0x23b00000 -> 0x23f00000 (size  4 MB)
>> Stack space : 0x23af8000 -> 0x23b00000 (size 32 kB)
>> err -74
>> envfs: wrong magic on /dev/env0
>> no valid environment found on /dev/env0. Using default environment
>> running /env/bin/init...
>>
>> Hit any key to stop autoboot:  3
>>
>> type update_kernel [<imagename>] to update kernel into flash
>> type udate_root [<imagename>] to update rootfs into flash
>>
>> 9G20-EK:/
>>
>> [2]
>> #
>> # Automatically generated make config: don't edit
>> # Linux/arm 2011.02.0 Barebox Configuration
>> # Thu Feb 10 11:58:15 2011
>> #
>> # CONFIG_BOARD_LINKER_SCRIPT is not set
>> CONFIG_GENERIC_LINKER_SCRIPT=y
>> CONFIG_ARM=y
>>
>> #
>> # System Type
>> #
>> CONFIG_ARCH_AT91=y
>> # CONFIG_ARCH_EP93XX is not set
>> # CONFIG_ARCH_IMX is not set
>> # CONFIG_ARCH_MXS is not set
>> # CONFIG_ARCH_NETX is not set
>> # CONFIG_ARCH_NOMADIK is not set
>> # CONFIG_ARCH_OMAP is not set
>> # CONFIG_ARCH_S3C24xx is not set
>> # CONFIG_ARCH_VERSATILE is not set
>>
>> #
>> # Processor Type
>> #
>> CONFIG_CPU_32=y
>> CONFIG_CPU_ARM926T=y
>> CONFIG_CPU_32v5=y
>>
>> #
>> # processor features
>> #
>> # CONFIG_BOOT_ENDIANNESS_SWITCH is not set
>> CONFIG_ARCH_TEXT_BASE=0x23f00000
>> CONFIG_BOARDINFO="Atmel at91sam9g20-ek"
>> CONFIG_HAVE_NAND_ATMEL_BUSWIDTH_16=y
>>
>> #
>> # Atmel AT91 System-on-Chip
>> #
>> # CONFIG_ARCH_AT91SAM9260 is not set
>> # CONFIG_ARCH_AT91SAM9261 is not set
>> # CONFIG_ARCH_AT91SAM9263 is not set
>> # CONFIG_ARCH_AT91SAM9G10 is not set
>> CONFIG_ARCH_AT91SAM9G20=y
>> # CONFIG_ARCH_AT91SAM9G45 is not set
>> CONFIG_MACH_AT91SAM9G20EK=y
>>
>> #
>> # AT91 Board Options
>> #
>> # CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16 is not set
>> # CONFIG_AT91_HAVE_2MMC is not set
>> # CONFIG_AEABI is not set
>>
>> #
>> # Arm specific settings
>> #
>> CONFIG_CMD_ARM_CPUINFO=y
>> CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS=y
>> CONFIG_DEFCONFIG_LIST="$ARCH_DEFCONFIG"
>> CONFIG_GREGORIAN_CALENDER=y
>> CONFIG_HAS_KALLSYMS=y
>> CONFIG_HAS_MODULES=y
>> CONFIG_CMD_MEMORY=y
>> CONFIG_ENV_HANDLING=y
>> CONFIG_GENERIC_GPIO=y
>>
>> #
>> # General Settings
>> #
>> CONFIG_LOCALVERSION_AUTO=y
>>
>> #
>> # memory layout
>> #
>> CONFIG_HAVE_CONFIGURABLE_TEXT_BASE=y
>> CONFIG_TEXT_BASE=0x23f00000
>> CONFIG_HAVE_CONFIGURABLE_MEMORY_LAYOUT=y
>> CONFIG_MEMORY_LAYOUT_DEFAULT=y
>> # CONFIG_MEMORY_LAYOUT_FIXED is not set
>> CONFIG_STACK_SIZE=0x8000
>> CONFIG_MALLOC_SIZE=0x400000
>> # CONFIG_BROKEN is not set
>> # CONFIG_EXPERIMENTAL is not set
>> CONFIG_PROMPT="9G20-EK:"
>> CONFIG_BAUDRATE=115200
>> CONFIG_LONGHELP=y
>> CONFIG_CBSIZE=1024
>> CONFIG_MAXARGS=16
>> CONFIG_SHELL_HUSH=y
>> # CONFIG_SHELL_SIMPLE is not set
>> CONFIG_GLOB=y
>> CONFIG_PROMPT_HUSH_PS2="y"
>> # CONFIG_HUSH_FANCY_PROMPT is not set
>> # CONFIG_HUSH_GETOPT is not set
>> CONFIG_CMDLINE_EDITING=y
>> CONFIG_AUTO_COMPLETE=y
>> # CONFIG_MENU is not set
>> # CONFIG_PASSWORD is not set
>> CONFIG_DYNAMIC_CRC_TABLE=y
>> CONFIG_ERRNO_MESSAGES=y
>> CONFIG_TIMESTAMP=y
>> CONFIG_CONSOLE_FULL=y
>> CONFIG_CONSOLE_ACTIVATE_FIRST=y
>> # CONFIG_OF_FLAT_TREE is not set
>> CONFIG_PARTITION=y
>> CONFIG_DEFAULT_ENVIRONMENT=y
>> # CONFIG_DEFAULT_ENVIRONMENT_GENERIC is not set
>> CONFIG_DEFAULT_ENVIRONMENT_PATH="arch/arm/boards/at91sam9260ek/env"
>> # CONFIG_POLLER is not set
>>
>> #
>> # Debugging
>> #
>> # CONFIG_DEBUG_INFO is not set
>> CONFIG_ENABLE_FLASH_NOISE=y
>> # CONFIG_ENABLE_PARTITION_NOISE is not set
>> # CONFIG_ENABLE_DEVICE_NOISE is not set
>>
>> #
>> # Commands
>> #
>>
>> #
>> # scripting
>> #
>> CONFIG_CMD_EDIT=y
>> CONFIG_CMD_SLEEP=y
>> CONFIG_CMD_SAVEENV=y
>> CONFIG_CMD_LOADENV=y
>> CONFIG_CMD_EXPORT=y
>> CONFIG_CMD_PRINTENV=y
>> CONFIG_CMD_READLINE=y
>> CONFIG_CMD_TRUE=y
>> CONFIG_CMD_FALSE=y
>> # CONFIG_CMD_LOGIN is not set
>> # CONFIG_CMD_PASSWD is not set
>>
>> #
>> # file commands
>> #
>> CONFIG_CMD_LS=y
>> CONFIG_CMD_RM=y
>> CONFIG_CMD_CAT=y
>> CONFIG_CMD_MKDIR=y
>> CONFIG_CMD_RMDIR=y
>> CONFIG_CMD_CP=y
>> CONFIG_CMD_PWD=y
>> CONFIG_CMD_CD=y
>> CONFIG_CMD_MOUNT=y
>> CONFIG_CMD_UMOUNT=y
>>
>> #
>> # console
>> #
>> CONFIG_CMD_CLEAR=y
>> CONFIG_CMD_ECHO=y
>> # CONFIG_CMD_ECHO_E is not set
>>
>> #
>> # memory
>> #
>> # CONFIG_CMD_LOADB is not set
>> CONFIG_CMD_MEMINFO=y
>> CONFIG_CMD_CRC=y
>> # CONFIG_CMD_CRC_CMP is not set
>> CONFIG_CMD_MTEST=y
>> CONFIG_CMD_MTEST_ALTERNATIVE=y
>>
>> #
>> # flash
>> #
>> CONFIG_CMD_FLASH=y
>> # CONFIG_CMD_UBI is not set
>>
>> #
>> # booting
>> #
>> CONFIG_CMD_BOOTM=y
>> # CONFIG_CMD_BOOTM_ZLIB is not set
>> # CONFIG_CMD_BOOTM_BZLIB is not set
>> CONFIG_CMD_BOOTM_SHOW_TYPE=y
>> CONFIG_CMD_BOOTZ=y
>> CONFIG_CMD_BOOTU=y
>> CONFIG_CMD_RESET=y
>> CONFIG_CMD_GO=y
>> CONFIG_CMD_TIMEOUT=y
>> CONFIG_CMD_PARTITION=y
>> CONFIG_CMD_TEST=y
>> CONFIG_CMD_VERSION=y
>> CONFIG_CMD_HELP=y
>> CONFIG_CMD_DEVINFO=y
>> CONFIG_CMD_GPIO=y
>> # CONFIG_CMD_UNLZO is not set
>> # CONFIG_CMD_I2C is not set
>> CONFIG_NET=y
>> CONFIG_NET_DHCP=y
>> # CONFIG_NET_NFS is not set
>> CONFIG_NET_PING=y
>> CONFIG_NET_TFTP=y
>> # CONFIG_NET_TFTP_PUSH is not set
>> # CONFIG_NET_NETCONSOLE is not set
>> # CONFIG_NET_RESOLV is not set
>>
>> #
>> # Drivers
>> #
>>
>> #
>> # serial drivers
>> #
>> # CONFIG_DRIVER_SERIAL_ARM_DCC is not set
>> # CONFIG_DRIVER_SERIAL_NS16550 is not set
>> CONFIG_DRIVER_SERIAL_ATMEL=y
>> CONFIG_HAS_MACB=y
>> CONFIG_MIIDEV=y
>>
>> #
>> # Network drivers
>> #
>> # CONFIG_DRIVER_NET_SMC911X is not set
>> # CONFIG_DRIVER_NET_SMC91111 is not set
>> CONFIG_DRIVER_NET_MACB=y
>>
>> #
>> # SPI drivers
>> #
>> # CONFIG_SPI is not set
>> CONFIG_I2C=y
>>
>> #
>> # I2C Hardware Bus support
>> #
>>
>> #
>> # flash drivers
>> #
>> CONFIG_DRIVER_CFI=y
>> CONFIG_DRIVER_CFI_INTEL=y
>> CONFIG_DRIVER_CFI_AMD=y
>> CONFIG_DRIVER_CFI_BANK_WIDTH_1=y
>> CONFIG_DRIVER_CFI_BANK_WIDTH_2=y
>> CONFIG_DRIVER_CFI_BANK_WIDTH_4=y
>> # CONFIG_DRIVER_CFI_BANK_WIDTH_8 is not set
>> CONFIG_CFI_BUFFER_WRITE=y
>> CONFIG_MTD=y
>> CONFIG_NAND=y
>> CONFIG_NAND_ATMEL=y
>> # CONFIG_MTD_NAND_VERIFY_WRITE is not set
>> # CONFIG_MTD_NAND_ECC_SMC is not set
>> CONFIG_MTD_NAND_IDS=y
>> # CONFIG_UBI is not set
>> # CONFIG_ATA is not set
>> # CONFIG_USB is not set
>> # CONFIG_USB_GADGET is not set
>> # CONFIG_VIDEO is not set
>> # CONFIG_MCI is not set
>>
>> #
>> # MFD
>> #
>> # CONFIG_I2C_MC13892 is not set
>> # CONFIG_I2C_MC34704 is not set
>> # CONFIG_I2C_MC9SDZ60 is not set
>> # CONFIG_I2C_LP3972 is not set
>> # CONFIG_I2C_TWL4030 is not set
>> # CONFIG_LED is not set
>>
>> #
>> # Filesystem support
>> #
>> # CONFIG_FS_CRAMFS is not set
>> CONFIG_FS_RAMFS=y
>> CONFIG_FS_DEVFS=y
>> CONFIG_CRC32=y
>> # CONFIG_DIGEST is not set
>> # CONFIG_GENERIC_FIND_NEXT_BIT is not set
>> # CONFIG_PROCESS_ESCAPE_SEQUENCE is not set
>>
>> _______________________________________________
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>

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