[U-Boot] [PATCH v2 21/23] apalis_imx6: use SDP if USB serial downloader has been used

Marcel Ziswiler
2019-02-08T17:12:24Z

From: Stefan Agner <stefan.agner@toradex.com>

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>

---

Changes in v2: None

board/toradex/apalis_imx6/apalis_imx6.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/board/toradex/apalis_imx6/apalis_imx6.c b/board/toradex/apalis_imx6/apalis_imx6.c
index 2c90a40042..ce54638c4c 100644
--- a/board/toradex/apalis_imx6/apalis_imx6.c
+++ b/board/toradex/apalis_imx6/apalis_imx6.c
@@ -714,6 +714,14 @@ 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 */
--
2.20.1