Jetpack/u-boot/arch/arm/mach-tegra/cmd_enterrcm.c

66 lines
1.4 KiB
C

/*
* Copyright (c) 2012-2018, NVIDIA CORPORATION. All rights reserved.
*
* Derived from code (arch/arm/lib/reset.c) that is:
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Marius Groeger <mgroeger@sysgo.de>
*
* (C) Copyright 2002
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
* Alex Zuepke <azu@sysgo.de>
*
* (C) Copyright 2002
* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
*
* (C) Copyright 2004
* DAVE Srl
* http://www.dave-tech.it
* http://www.wawnet.biz
* mailto:info@wawnet.biz
*
* (C) Copyright 2004 Texas Insturments
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/tegra.h>
#include <asm/arch-tegra/pmc.h>
static int do_enterrcm(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
u32 pmc_scratch0_offset;
puts("Entering RCM...\n");
udelay(50000);
#if defined(CONFIG_TEGRA186)
/*
* T186 has moved the scratch regs. Address the reg directly here
* rather than creating a new pmc reg struct for just one register.
*/
pmc_scratch0_offset = 0x32000;
#else
pmc_scratch0_offset = offsetof(struct pmc_ctlr, pmc_scratch0);
#endif
tegra_pmc_writel(2, pmc_scratch0_offset);
disable_interrupts();
/* reset_cpu */
reset_cpu(0);
return 0;
}
U_BOOT_CMD(
enterrcm, 1, 0, do_enterrcm,
"reset Tegra and enter USB Recovery Mode",
""
);