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NAND code in Processor SDK

Ganesh Tenka
Expert 1770 points

Hi,

                     How to enable NAND driver in u-boot in Processor SDK. I have enabled CONFIG_NAND and added the below lines in ti_armv7_common.h

#define CONFIG_NAND_OMAP_GPMC
#ifndef CONFIG_SYS_NAND_BASE
#define CONFIG_SYS_NAND_BASE        0x8000000
#endif
#define CONFIG_SYS_MAX_NAND_DEVICE    1
#define CONFIG_CMD_NAND
#define CONFIG_MTD_DEVICE        /* Required for mtdparts */
#define CONFIG_CMD_MTDPARTS

But still in u-boot prompt when i am executing mtdparts command i am getting nothing.

Thanks & Regards,

Ganesh

  • 0
    TI__Guru 65405 points
    Hi Ganesh,

    I can not see in your code configuration of maximum number of NAND chips per device CONFIG_SYS_NAND_MAX_CHIPS but you can find more details about how to init NAND device in the ./doc/README.nand file of u-boot documentation.

    BR
    Tsvetolin Shulev
  • 0 in reply to Cvetolin Shulev-XID
    Expert 1770 points

    Hi,
    I am using this am57xx_evm_defconfig config file for building, in which file i need to set the macros is it ti_armv7_common.h file only in processor SDK?


    Thanks & Regards,
    Ganesh

  • 0 in reply to Ganesh Tenka
    Expert 1770 points
    Hi,

    I have enabled NAND but by adding all these macros

    #define CONFIG_AM57XX
    #ifndef CONFIG_SYS_NAND_BASE
    #define CONFIG_SYS_NAND_BASE 0x8000000
    #endif
    #define CONFIG_SYS_MAX_NAND_DEVICE 1
    #define CONFIG_SYS_NAND_MAX_CHIPS 1
    #define CONFIG_MTD_DEVICE /* Required for mtdparts */
    #define CONFIG_CMD_MTDPARTS
    #define CONFIG_BCH
    #define CONFIG_CMD_SPL_NAND_OFS 0x00080000 /* os-boot params*/
    #define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x00200000 /* kernel offset */
    #define CONFIG_CMD_SPL_WRITE_SIZE 0x2000


    #define CONFIG_SPL_NAND_SUPPORT
    #define CONFIG_SPL_NAND_BASE
    #define CONFIG_SPL_NAND_DRIVERS
    #define CONFIG_SPL_NAND_ECC
    #define CONFIG_SPL_MTD_SUPPORT
    #ifdef CONFIG_SPL_BUILD
    #define CONFIG_IODELAY_RECALIBRATION
    #endif

    /* NAND support */
    /* NAND: device related configs */
    #define CONFIG_SYS_NAND_PAGE_SIZE 2048
    #define CONFIG_SYS_NAND_OOBSIZE 64
    #define CONFIG_SYS_NAND_BLOCK_SIZE (128*1024)
    #define CONFIG_SYS_NAND_BUSWIDTH_16BIT
    #define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \
    CONFIG_SYS_NAND_PAGE_SIZE)
    #define CONFIG_SYS_NAND_5_ADDR_CYCLE
    /* NAND: driver related configs */
    #define CONFIG_NAND_OMAP_GPMC
    #define CONFIG_NAND_OMAP_ELM
    #define CONFIG_SYS_NAND_ONFI_DETECTION
    #define CONFIG_NAND_OMAP_ECCSCHEME OMAP_ECC_BCH8_CODE_HW
    #define CONFIG_SYS_NAND_BAD_BLOCK_POS NAND_LARGE_BADBLOCK_POS
    #define CONFIG_SYS_NAND_ECCPOS { 2, 3, 4, 5, 6, 7, 8, 9, \
    10, 11, 12, 13, 14, 15, 16, 17, \
    18, 19, 20, 21, 22, 23, 24, 25, \
    26, 27, 28, 29, 30, 31, 32, 33, \
    34, 35, 36, 37, 38, 39, 40, 41, \
    42, 43, 44, 45, 46, 47, 48, 49, \
    50, 51, 52, 53, 54, 55, 56, 57, }
    #define CONFIG_SYS_NAND_ECCSIZE 512
    #define CONFIG_SYS_NAND_ECCBYTES 14
    #define MTDIDS_DEFAULT "nand0=nand.0"
    #define MTDPARTS_DEFAULT "mtdparts=nand.0:" \
    "128k(NAND.SPL)," \
    "128k(NAND.SPL.backup1)," \
    "128k(NAND.SPL.backup2)," \
    "128k(NAND.SPL.backup3)," \
    "256k(NAND.u-boot-spl-os)," \
    "1m(NAND.u-boot)," \
    "128k(NAND.u-boot-env)," \
    "128k(NAND.u-boot-env.backup1)," \
    "8m(NAND.kernel)," \
    "-(NAND.file-system)"
    #define CONFIG_SYS_NAND_U_BOOT_OFFS 0x000c0000
    /* NAND: SPL related configs */
    #ifdef CONFIG_SPL_NAND_SUPPORT
    #define CONFIG_SPL_NAND_AM33XX_BCH
    #endif
    /* NAND: SPL falcon mode configs */
    #ifdef CONFIG_SPL_OS_BOOT
    #define CONFIG_CMD_SPL_NAND_OFS 0x00080000 /* os-boot params*/
    #define CONFIG_SYS_NAND_SPL_KERNEL_OFFS 0x00200000 /* kernel offset */
    #define CONFIG_CMD_SPL_WRITE_SIZE 0x2000
    #endif
    /* !CONFIG_NAND */


    But while accessing nand i am getting problems like these,

    U-Boot# mtdparts
    mtdparts variable not set, see 'help mtdparts'
    no partitions defined

    defaults:
    mtdids : nand0=nand.0
    mtdparts: mtdparts=nand.0:128k(NAND.SPL),128k(NAND.SPL.backup1),128k(NAND.SPL.backup2),128k(NAND.SPL.backup3),256k(NAND.u-boot-spl-os),1m(NAND)


    U-Boot# nand write 0x81000000 NAND.SPL

    NAND write: mtdparts variable not set, see 'help mtdparts'
    incorrect device type in NAND.SPL


    Thanks & Regards,
    Ganesh