mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
09f455dca7
This commit moves files as follows: arch/arm/cpu/arm720t/tegra20/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/arm720t/tegra30/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/arm720t/tegra114/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/arm720t/tegra124* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/arm720t/tegra-common/* -> arch/arm/mach-tegra/* arch/arm/cpu/armv7/tegra20/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/armv7/tegra30/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/armv7/tegra114/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/armv7/tegra124/* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/armv7/tegra-common/* -> arch/arm/mach-tegra/* arch/arm/cpu/tegra20-common/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/tegra30-common/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/tegra114-common/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/tegra124-common/* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/tegra-common/* -> arch/arm/mach-tegra/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Simon Glass <sjg@chromium.org> [ on nyan-big ] Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com>
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2010-2012, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.h>
|
|
#include <asm/arch/tegra.h>
|
|
#include <asm/arch-tegra/pmc.h>
|
|
#include "../cpu.h"
|
|
|
|
static void enable_cpu_power_rail(void)
|
|
{
|
|
struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
|
|
u32 reg;
|
|
|
|
reg = readl(&pmc->pmc_cntrl);
|
|
reg |= CPUPWRREQ_OE;
|
|
writel(reg, &pmc->pmc_cntrl);
|
|
|
|
/*
|
|
* The TI PMU65861C needs a 3.75ms delay between enabling
|
|
* the power rail and enabling the CPU clock. This delay
|
|
* between SM1EN and SM1 is for switching time + the ramp
|
|
* up of the voltage to the CPU (VDD_CPU from PMU).
|
|
*/
|
|
udelay(3750);
|
|
}
|
|
|
|
void start_cpu(u32 reset_vector)
|
|
{
|
|
/* Enable VDD_CPU */
|
|
enable_cpu_power_rail();
|
|
|
|
/* Hold the CPUs in reset */
|
|
reset_A9_cpu(1);
|
|
|
|
/* Disable the CPU clock */
|
|
enable_cpu_clock(0);
|
|
|
|
/* Enable CoreSight */
|
|
clock_enable_coresight(1);
|
|
|
|
/*
|
|
* Set the entry point for CPU execution from reset,
|
|
* if it's a non-zero value.
|
|
*/
|
|
if (reset_vector)
|
|
writel(reset_vector, EXCEP_VECTOR_CPU_RESET_VECTOR);
|
|
|
|
/* Enable the CPU clock */
|
|
enable_cpu_clock(1);
|
|
|
|
/* If the CPU doesn't already have power, power it up */
|
|
powerup_cpu();
|
|
|
|
/* Take the CPU out of reset */
|
|
reset_A9_cpu(0);
|
|
}
|