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Linux/AM5726: NAND boot issue

Nirav Patel
Prodigy 200 points

Part Number: AM5726

Tool/software: Linux

Hi,

I am using AM5726 based custom board and currently we are using MT29F8G08ABACAWP NAND flash.

From https://e2e.ti.com/support/arm/sitara_arm/f/791/t/631680 

It has nand: 1024 MiB, SLC, erase size: 256 KiB, page size: 4096, OOB size: 224

I am using OMAP_ECC_BCH16_CODE_HW ECC scheme to flash MLO and u-boot.img from kernel.

But When I tried to boot this board it is giving below error.

U-Boot SPL 2016.05-00304-g323bf10-dirty (Oct 31 2017 - 13:52:59)
DRA752-GP ES2.0
Trying to boot from NAND

My U-boot configuration is below in config file

#ifdef CONFIG_NAND /*CONFIG_G3Z_NAND //comment*/

/* NAND: device related configs */
#define CONFIG_SYS_NAND_5_ADDR_CYCLE
#define CONFIG_SYS_NAND_PAGE_COUNT (CONFIG_SYS_NAND_BLOCK_SIZE / \
CONFIG_SYS_NAND_PAGE_SIZE)
#define CONFIG_SYS_NAND_PAGE_SIZE 4096
#define CONFIG_SYS_NAND_OOBSIZE 224
#define CONFIG_SYS_NAND_BLOCK_SIZE (256*1024)
/* NAND: driver related configs */
#define CONFIG_NAND_OMAP_GPMC
#define CONFIG_NAND_OMAP_GPMC_PREFETCH
#define CONFIG_NAND_OMAP_ELM
#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, 58, 59, 60, 61, 62, 63,\
64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75,\
76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87,\
88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,\
100, 101, 102, 103, 104, 105,}

#define CONFIG_SYS_NAND_ECCSIZE 512
/* #define CONFIG_SYS_NAND_ECCBYTES 14 */
#define CONFIG_SYS_NAND_ECCBYTES 26
#define CONFIG_SYS_NAND_ONFI_DETECTION
/* #define CONFIG_NAND_OMAP_ECCSCHEME OMAP_ECC_BCH8_CODE_HW */
#define CONFIG_NAND_OMAP_ECCSCHEME OMAP_ECC_BCH16_CODE_HW
#define MTDIDS_DEFAULT "nand0=nand.0"
#define MTDPARTS_DEFAULT "mtdparts=nand.0:" \
"256k(NAND.SPL)," \
"256k(NAND.SPL.backup1)," \
"256k(NAND.SPL.backup2)," \
"256k(NAND.SPL.backup3)," \
"256k(NAND.u-boot-spl-os)," \
"1m(NAND.u-boot)," \
"256k(NAND.u-boot-env)," \
"256k(NAND.u-boot-env.backup1)," \
"8m(NAND.kernel)," \
"8m(NAND.kernel-backup)," \
"-(NAND.file-system)"
#define CONFIG_SYS_NAND_U_BOOT_OFFS 0x00140000
#define CONFIG_ENV_OFFSET 0x00240000

------------------------------------------------------------------------

Please suggest what I am missing ?

Thanks,

Nirav

  • 0
    TI__Guru**** 393215 points
    The software team have been notified. They will respond here.
  • 0 in reply to Biser Gatchev-XID
    Prodigy 200 points
    Hi,
    After changing ECC nand pos I am able to boot from NAND.

    #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, 58, 59, 60, 61, 62, 63,\
    64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75,\
    76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87,\
    88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99,\
    100, 101, 102, 103, 104, 105, 106, 107, 108, 109,\
    110, 111, 112, 113, 114, 115, 116, 117, 118, 119,\
    120, 121, 122, 123, 124, 125, 126, 127, 128, 129,\
    130, 131, 132, 133, 134, 135, 136, 137, 138, 139,\
    140, 141, 142, 143, 144, 145, 146, 147, 148, 149,\
    150, 151, 152, 153, 154, 155, 156, 157, 158, 159,\
    160, 161, 162, 163, 164, 165, 166, 167, 168, 169,\
    170, 171, 172, 173, 174, 175, 176, 177, 178, 179,\
    180, 181, 182, 183, 184, 185, 186, 187, 188, 189,\
    190, 191, 192, 193, 194, 195, 196, 197, 198, 199,\
    200, 201, 202, 203, 204, 205, 206, 207, 208, 209,}

    Thanks for the help.

    Nirav