mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 23:26:43 +07:00
d0a57bd5b5
tegra_clocks_apply_init_table() needs to be called after the udelay
loop has been calibrated (see commit
441f199a37 ("clk: tegra: defer
application of init table") for why that is). On existing Tegra SoCs
this was done by calling tegra_clocks_apply_init_table() from
tegra_dt_init(). To make this also work on ARM64, we need to change
this into an initcall. tegra_dt_init() is called from
customize_machine which is an arch_initcall. Therefore this should
also work on existing 32bit Tegra SoCs.
Tested on Tegra20 (ventana), Tegra30 (beaverboard), Tegra124 (jetson TK1) and
Tegra132.
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
[paul@pwsan.com: tweaked the commit message]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Prashant Gaikwad <pgaikwad@nvidia.com>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Alexandre Courbot <gnurou@gmail.com>
124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
/*
|
|
* Copyright (c) 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/>.
|
|
*/
|
|
|
|
#ifndef __LINUX_CLK_TEGRA_H_
|
|
#define __LINUX_CLK_TEGRA_H_
|
|
|
|
#include <linux/clk.h>
|
|
|
|
/*
|
|
* Tegra CPU clock and reset control ops
|
|
*
|
|
* wait_for_reset:
|
|
* keep waiting until the CPU in reset state
|
|
* put_in_reset:
|
|
* put the CPU in reset state
|
|
* out_of_reset:
|
|
* release the CPU from reset state
|
|
* enable_clock:
|
|
* CPU clock un-gate
|
|
* disable_clock:
|
|
* CPU clock gate
|
|
* rail_off_ready:
|
|
* CPU is ready for rail off
|
|
* suspend:
|
|
* save the clock settings when CPU go into low-power state
|
|
* resume:
|
|
* restore the clock settings when CPU exit low-power state
|
|
*/
|
|
struct tegra_cpu_car_ops {
|
|
void (*wait_for_reset)(u32 cpu);
|
|
void (*put_in_reset)(u32 cpu);
|
|
void (*out_of_reset)(u32 cpu);
|
|
void (*enable_clock)(u32 cpu);
|
|
void (*disable_clock)(u32 cpu);
|
|
#ifdef CONFIG_PM_SLEEP
|
|
bool (*rail_off_ready)(void);
|
|
void (*suspend)(void);
|
|
void (*resume)(void);
|
|
#endif
|
|
};
|
|
|
|
extern struct tegra_cpu_car_ops *tegra_cpu_car_ops;
|
|
|
|
static inline void tegra_wait_cpu_in_reset(u32 cpu)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->wait_for_reset))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->wait_for_reset(cpu);
|
|
}
|
|
|
|
static inline void tegra_put_cpu_in_reset(u32 cpu)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->put_in_reset))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->put_in_reset(cpu);
|
|
}
|
|
|
|
static inline void tegra_cpu_out_of_reset(u32 cpu)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->out_of_reset))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->out_of_reset(cpu);
|
|
}
|
|
|
|
static inline void tegra_enable_cpu_clock(u32 cpu)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->enable_clock))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->enable_clock(cpu);
|
|
}
|
|
|
|
static inline void tegra_disable_cpu_clock(u32 cpu)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->disable_clock))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->disable_clock(cpu);
|
|
}
|
|
|
|
#ifdef CONFIG_PM_SLEEP
|
|
static inline bool tegra_cpu_rail_off_ready(void)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready))
|
|
return false;
|
|
|
|
return tegra_cpu_car_ops->rail_off_ready();
|
|
}
|
|
|
|
static inline void tegra_cpu_clock_suspend(void)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->suspend))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->suspend();
|
|
}
|
|
|
|
static inline void tegra_cpu_clock_resume(void)
|
|
{
|
|
if (WARN_ON(!tegra_cpu_car_ops->resume))
|
|
return;
|
|
|
|
tegra_cpu_car_ops->resume();
|
|
}
|
|
#endif
|
|
|
|
#endif /* __LINUX_CLK_TEGRA_H_ */
|