[U-Boot] Fastboot is not detected

[Fabio Estevam]

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 >

(and it gets stuck here)

After a CTRL+C I have also tried:

$ sudo fastboot devices
$

,but nothing is reported.

I am able to mount the SD card via 'ums 0 mmc 1' command, so the USB
OTG connection is fine.

Does anyone have any suggestions?

Thanks,

Fabio Estevam