1 /*
2  * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
3  *
4  * Derived from code (arch/arm/lib/reset.c) that is:
5  *
6  * (C) Copyright 2002
7  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
8  * Marius Groeger <mgroeger@sysgo.de>
9  *
10  * (C) Copyright 2002
11  * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
12  * Alex Zuepke <azu@sysgo.de>
13  *
14  * (C) Copyright 2002
15  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
16  *
17  * (C) Copyright 2004
18  * DAVE Srl
19  * http://www.dave-tech.it
20  * http://www.wawnet.biz
21  * mailto:info@wawnet.biz
22  *
23  * (C) Copyright 2004 Texas Insturments
24  *
25  * SPDX-License-Identifier:	GPL-2.0+
26  */
27 
28 #include <common.h>
29 #include <asm/arch/tegra.h>
30 #include <asm/arch-tegra/pmc.h>
31 
32 static int do_enterrcm(cmd_tbl_t *cmdtp, int flag, int argc,
33 		       char * const argv[])
34 {
35 	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
36 
37 	puts("Entering RCM...\n");
38 	udelay(50000);
39 
40 	pmc->pmc_scratch0 = 2;
41 	disable_interrupts();
42 	reset_cpu(0);
43 
44 	return 0;
45 }
46 
47 U_BOOT_CMD(
48 	enterrcm, 1, 0, do_enterrcm,
49 	"reset Tegra and enter USB Recovery Mode",
50 	""
51 );
52