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
---
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 696994a6b6..542b1ebafe 100644 --- a/board/toradex/apalis_imx6/apalis_imx6.c +++ b/board/toradex/apalis_imx6/apalis_imx6.c @@ -705,6 +705,14 @@ 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 */