mirror of
https://github.com/brain-hackers/u-boot-brain
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a3774c1c3c
Add USB serial download protocol support to SPL. If the SoC started in recovery mode the SPL will immediately switch to SDP and wait for further downloads/commands from the host side. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Reviewed-by: Stefano Babic <sbabic@denx.de> Reviewed-by: Łukasz Majewski <lukma@denx.de>
38 lines
776 B
C
38 lines
776 B
C
/*
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* (C) Copyright 2016 Toradex
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* Author: Stefan Agner <stefan.agner@toradex.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <spl.h>
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#include <usb.h>
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#include <g_dnl.h>
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#include <sdp.h>
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DECLARE_GLOBAL_DATA_PTR;
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static int spl_sdp_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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int ret;
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const int controller_index = 0;
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g_dnl_clear_detach();
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g_dnl_register("usb_dnl_sdp");
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ret = sdp_init(controller_index);
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if (ret) {
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error("SDP init failed: %d", ret);
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return -ENODEV;
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}
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/* This command typically does not return but jumps to an image */
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sdp_handle(controller_index);
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error("SDP ended");
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return -EINVAL;
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}
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SPL_LOAD_IMAGE_METHOD("USB SDP", 0, BOOT_DEVICE_BOARD, spl_sdp_load_image);
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