From: Stefan Agner <stefan.agner@toradex.com>
Date: Fri, 8 Feb 2019 17:12:24 +0000 (+0100)
Subject: apalis_imx6: use SDP if USB serial downloader has been used
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=15834c638317d480e943fae688b148edcfc52892;p=u-boot.git

apalis_imx6: use SDP if USB serial downloader has been used

In case USB serial downloader has been used to load U-Boot start the
serial download protocol (SDP) emulation. This allows to download
complete images such as Toradex Easy Installer over USB SDP as well.
This code uses the boot ROM provided boot information to reliably
detect USB serial downloader.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
---

diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c
index 934ba1fb5b..3e59185438 100644
--- a/board/toradex/apalis_imx6/apalis_imx6.c
+++ b/board/toradex/apalis_imx6/apalis_imx6.c
@@ -723,6 +723,14 @@ int board_late_init(void)
 #endif /* CONFIG_TDX_APALIS_IMX6_V1_0 */
 #endif /* CONFIG_REVISION_TAG */
 
+#ifdef CONFIG_CMD_USB_SDP
+	if (is_boot_from_usb()) {
+		printf("Serial Downloader recovery mode, using sdp command\n");
+		env_set("bootdelay", "0");
+		env_set("bootcmd", "sdp 0");
+	}
+#endif /* CONFIG_CMD_USB_SDP */
+
 	return 0;
 }
 #endif /* CONFIG_BOARD_LATE_INIT */