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git01.mediatek.com / filogic / uboot / ce7eb16a827c2ef4506a32fe2520515c787a2ce6 / . / arch / arm / mach-tegra / cmd_enterrcm.c
blob: 4a889f0e3422fc1261f37bc37c7a52161cc32d26 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Stephen Warren3c7643c2012-06-04 09:23:55 +0000[diff] [blame]2/*
Thierry Redingce7eb162019-04-15 11:32:25 +0200[diff] [blame^]3 * Copyright (c) 2012-2019, NVIDIA CORPORATION. All rights reserved.
Stephen Warren3c7643c2012-06-04 09:23:55 +0000[diff] [blame]4 *
5 * Derived from code (arch/arm/lib/reset.c) that is:
6 *
7 * (C) Copyright 2002
8 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
9 * Marius Groeger <mgroeger@sysgo.de>
10 *
11 * (C) Copyright 2002
12 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
13 * Alex Zuepke <azu@sysgo.de>
14 *
15 * (C) Copyright 2002
16 * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
17 *
18 * (C) Copyright 2004
19 * DAVE Srl
20 * http://www.dave-tech.it
21 * http://www.wawnet.biz
22 * mailto:info@wawnet.biz
23 *
24 * (C) Copyright 2004 Texas Insturments
Stephen Warren3c7643c2012-06-04 09:23:55 +0000[diff] [blame]25 */
26
27#include <common.h>
Tom Warrenab371962012-09-19 15:50:56 -0700[diff] [blame]28#include <asm/arch/tegra.h>
29#include <asm/arch-tegra/pmc.h>
Stephen Warren3c7643c2012-06-04 09:23:55 +0000[diff] [blame]30
31static int do_enterrcm(cmd_tbl_t *cmdtp, int flag, int argc,
32 char * const argv[])
33{
Stephen Warren3c7643c2012-06-04 09:23:55 +0000[diff] [blame]34 puts("Entering RCM...\n");
35 udelay(50000);
36
Thierry Redingce7eb162019-04-15 11:32:25 +0200[diff] [blame^]37 tegra_pmc_writel(2, PMC_SCRATCH0);
Stephen Warren3c7643c2012-06-04 09:23:55 +0000[diff] [blame]38 disable_interrupts();
39 reset_cpu(0);
40
41 return 0;
42}
43
44U_BOOT_CMD(
45 enterrcm, 1, 0, do_enterrcm,
46 "reset Tegra and enter USB Recovery Mode",
47 ""
48);