71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/*
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* Copyright (C) 2013 Lucas Stach <l.stach@pengutronix.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file
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* @brief Device driver for the Tegra 20 power management controller.
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*/
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#include <common.h>
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#include <init.h>
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#include <io.h>
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#include <mach/tegra20-pmc.h>
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static void __iomem *pmc_base;
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/* main SoC reset trigger */
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void __noreturn reset_cpu(ulong addr)
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{
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writel(PMC_CNTRL_MAIN_RST, pmc_base + PMC_CNTRL);
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unreachable();
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}
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EXPORT_SYMBOL(reset_cpu);
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static int tegra20_pmc_probe(struct device_d *dev)
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{
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pmc_base = dev_request_mem_region(dev, 0);
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if (!pmc_base) {
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dev_err(dev, "could not get memory region\n");
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return -ENODEV;
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}
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return 0;
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}
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static __maybe_unused struct of_device_id tegra20_pmc_dt_ids[] = {
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{
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.compatible = "nvidia,tegra20-pmc",
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}, {
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.compatible = "nvidia,tegra30-pmc",
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}, {
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/* sentinel */
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}
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};
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static struct driver_d tegra20_pmc_driver = {
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.probe = tegra20_pmc_probe,
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.name = "tegra20-pmc",
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.of_compatible = DRV_OF_COMPAT(tegra20_pmc_dt_ids),
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};
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static int tegra20_pmc_init(void)
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{
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return platform_driver_register(&tegra20_pmc_driver);
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}
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coredevice_initcall(tegra20_pmc_init);
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