[U-Boot] dfu_get_buf: Could not memalign 0x2000000 bytes

[Przemyslaw Marczak]

Hello Fabio,

On 02/27/2015 04:20 PM, Fabio Estevam wrote:
> Hi,
>
> I am trying to run DFU in order to flash u-boot.imx into the SD card
> on a mx6qsabresd.
>
> The changes in config file are:
>
> --- a/include/configs/mx6sabre_common.h
> +++ b/include/configs/mx6sabre_common.h
> @@ -295,4 +295,10 @@
>   #define CONFIG_G_DNL_PRODUCT_NUM       0xa4a5
>   #define CONFIG_G_DNL_MANUFACTURER      "FSL"
>
> +#define CONFIG_CMD_DFU
> +#define CONFIG_DFU_FUNCTION
> +#define CONFIG_DFU_MMC
> +#define CONFIG_SYS_DFU_DATA_BUF_SIZE SZ_32M
> +#define DFU_DEFAULT_POLL_TIMEOUT 300
> +
>   #endif
>
> => mmc dev 1
>
> => setenv dfu_alt_info 'boot raw 0x2 0x400'
> => save
>
> => dfu 0 mmc 1
>
> Then on the host PC:
>
> $ sudo dfu-util -D u-boot.imx -a boot
> dfu-util 0.8
>
> Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
> Copyright 2010-2014 Tormod Volden and Stefan Schmidt
> This program is Free Software and has ABSOLUTELY NO WARRANTY
> Please report bugs to dfu-util at lists.gnumonks.org
>
> dfu-util: Invalid DFU suffix signature
> dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
> Opening DFU capable USB device...
> ID 0525:a4a5
> Run-time device DFU version 0110
> Claiming USB DFU Interface...
> Setting Alternate Setting #0 ...
> Determining device status: state = dfuIDLE, status = 0
> dfuIDLE, continuing
> DFU mode device DFU version 0110
> Device returned transfer size 4096
> Copying data from PC to DFU device
> Download    [                         ]   0%            0 bytes failed!
> state(10) = dfuERROR, status(14) = Something went wrong, but the
> device does not know what it was
>
> and the following error is seen in U-boot:
>
> dfu_get_buf: Could not memalign 0x2000000 bytes
>
> Does anyone have any suggestions about this?
>
> Thanks,
>
> Fabio Estevam
>

Yes, please update line 33 in your config file, at least with this

  #define CONFIG_SYS_MALLOC_LEN           (10 * SZ_1M) + 
CONFIG_SYS_DFU_DATA_BUF_SIZE

You don't have enough malloc memory reserved.

Best regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com