From mboxrd@z Thu Jan  1 00:00:00 1970
From: Bo Shen <voice.shen@gmail.com>
Date: Thu, 10 Sep 2015 06:32:53 +0800
Subject: [U-Boot] Fastboot is not detected
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To: u-boot@lists.denx.de

Hi Fabio,

On 09/10/2015 05:02 AM, Fabio Estevam wrote:
> Hi,
>
> I am trying to add fastboot support for mx6qsabresd and I did the
> following changes on against top of head U-boot:
>
> --- a/include/configs/mx6sabre_common.h
> +++ b/include/configs/mx6sabre_common.h
> @@ -238,6 +238,12 @@
>   #define CONFIG_G_DNL_VENDOR_NUM        0x0525
>   #define CONFIG_G_DNL_PRODUCT_NUM    0xa4a5
>   #define CONFIG_G_DNL_MANUFACTURER    "FSL"
> +
> +#define CONFIG_USB_FUNCTION_FASTBOOT
> +#define CONFIG_CMD_FASTBOOT
> +#define CONFIG_ANDROID_BOOT_IMAGE
> +#define CONFIG_FASTBOOT_BUF_ADDR   CONFIG_SYS_LOAD_ADDR
> +#define CONFIG_FASTBOOT_BUF_SIZE   0x07000000
>   #endif
>
>   #endif                         /* __MX6QSABRE_COMMON_CONFIG_H */
>
> On the U-boot prompt I run:
>
> => fastboot 0
>
> and then in the host PC I try to read the bootloader version:
>
> $ fastboot getvar bootloader-version
> < waiting for device >

Please check whether the fastboot application supports your vendor ID. 
If not, add "-i <vendor_id> in your command line.

Best Regards,
Bo Shen