[U-Boot] [PATCH] mx6sabresd: Add fastboot support

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at nxp.com>

fastboot tool is a convenient way to flash the eMMC, so
add support for it.

Examples of usages:

On the mx6sabresd:

=> fastboot 0

On the Linux PC connected via USB:

$ sudo fastboot getvar bootloader-version -i 0x0525
bootloader-version: U-Boot 2018.01-00550-g7517cfe
finished. total time: 0.000s

$ sudo fastboot reboot -i 0x0525

(this causes the mx6sabresd to reboot)

Signed-off-by: Fabio Estevam <fabio.estevam at nxp.com>
---
The Linux PC runs Ubuntu 16.04 with fastboot version 1:6.0.1+r16-3.

 configs/mx6sabresd_defconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/configs/mx6sabresd_defconfig b/configs/mx6sabresd_defconfig
index f6a53d6..feb385d 100644
--- a/configs/mx6sabresd_defconfig
+++ b/configs/mx6sabresd_defconfig
@@ -20,6 +20,12 @@ CONFIG_SPL_USB_HOST_SUPPORT=y
 CONFIG_SPL_USB_GADGET_SUPPORT=y
 CONFIG_SPL_USB_SDP_SUPPORT=y
 CONFIG_HUSH_PARSER=y
+CONFIG_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x12000000
+CONFIG_FASTBOOT_BUF_SIZE=0x10000000
+CONFIG_FASTBOOT_USB_DEV=0
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=2
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_SPL=y
 CONFIG_CMD_SPL_WRITE_SIZE=0x20000
-- 
2.7.4