mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 16:55:17 +07:00
584ac4e935
Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Only include clk.h in files that are using it. Also add in a clkdev.h include that was missing in a file using clkdev APIs. Cc: Peter De Schrijver <pdeschrijver@nvidia.com> Cc: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2012, 2013, 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 <linux/io.h>
|
|
#include <linux/clk-provider.h>
|
|
#include <linux/clkdev.h>
|
|
#include <linux/of.h>
|
|
#include <linux/of_address.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/export.h>
|
|
#include <linux/clk/tegra.h>
|
|
|
|
#include "clk.h"
|
|
#include "clk-id.h"
|
|
|
|
#define PMC_CLK_OUT_CNTRL 0x1a8
|
|
#define PMC_DPD_PADS_ORIDE 0x1c
|
|
#define PMC_DPD_PADS_ORIDE_BLINK_ENB 20
|
|
#define PMC_CTRL 0
|
|
#define PMC_CTRL_BLINK_ENB 7
|
|
#define PMC_BLINK_TIMER 0x40
|
|
|
|
struct pmc_clk_init_data {
|
|
char *mux_name;
|
|
char *gate_name;
|
|
const char **parents;
|
|
int num_parents;
|
|
int mux_id;
|
|
int gate_id;
|
|
char *dev_name;
|
|
u8 mux_shift;
|
|
u8 gate_shift;
|
|
};
|
|
|
|
#define PMC_CLK(_num, _mux_shift, _gate_shift)\
|
|
{\
|
|
.mux_name = "clk_out_" #_num "_mux",\
|
|
.gate_name = "clk_out_" #_num,\
|
|
.parents = clk_out ##_num ##_parents,\
|
|
.num_parents = ARRAY_SIZE(clk_out ##_num ##_parents),\
|
|
.mux_id = tegra_clk_clk_out_ ##_num ##_mux,\
|
|
.gate_id = tegra_clk_clk_out_ ##_num,\
|
|
.dev_name = "extern" #_num,\
|
|
.mux_shift = _mux_shift,\
|
|
.gate_shift = _gate_shift,\
|
|
}
|
|
|
|
static DEFINE_SPINLOCK(clk_out_lock);
|
|
|
|
static const char *clk_out1_parents[] = { "clk_m", "clk_m_div2",
|
|
"clk_m_div4", "extern1",
|
|
};
|
|
|
|
static const char *clk_out2_parents[] = { "clk_m", "clk_m_div2",
|
|
"clk_m_div4", "extern2",
|
|
};
|
|
|
|
static const char *clk_out3_parents[] = { "clk_m", "clk_m_div2",
|
|
"clk_m_div4", "extern3",
|
|
};
|
|
|
|
static struct pmc_clk_init_data pmc_clks[] = {
|
|
PMC_CLK(1, 6, 2),
|
|
PMC_CLK(2, 14, 10),
|
|
PMC_CLK(3, 22, 18),
|
|
};
|
|
|
|
void __init tegra_pmc_clk_init(void __iomem *pmc_base,
|
|
struct tegra_clk *tegra_clks)
|
|
{
|
|
struct clk *clk;
|
|
struct clk **dt_clk;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pmc_clks); i++) {
|
|
struct pmc_clk_init_data *data;
|
|
|
|
data = pmc_clks + i;
|
|
|
|
dt_clk = tegra_lookup_dt_id(data->mux_id, tegra_clks);
|
|
if (!dt_clk)
|
|
continue;
|
|
|
|
clk = clk_register_mux(NULL, data->mux_name, data->parents,
|
|
data->num_parents, CLK_SET_RATE_NO_REPARENT,
|
|
pmc_base + PMC_CLK_OUT_CNTRL, data->mux_shift,
|
|
3, 0, &clk_out_lock);
|
|
*dt_clk = clk;
|
|
|
|
|
|
dt_clk = tegra_lookup_dt_id(data->gate_id, tegra_clks);
|
|
if (!dt_clk)
|
|
continue;
|
|
|
|
clk = clk_register_gate(NULL, data->gate_name, data->mux_name,
|
|
0, pmc_base + PMC_CLK_OUT_CNTRL,
|
|
data->gate_shift, 0, &clk_out_lock);
|
|
*dt_clk = clk;
|
|
clk_register_clkdev(clk, data->dev_name, data->gate_name);
|
|
}
|
|
|
|
/* blink */
|
|
writel_relaxed(0, pmc_base + PMC_BLINK_TIMER);
|
|
clk = clk_register_gate(NULL, "blink_override", "clk_32k", 0,
|
|
pmc_base + PMC_DPD_PADS_ORIDE,
|
|
PMC_DPD_PADS_ORIDE_BLINK_ENB, 0, NULL);
|
|
|
|
dt_clk = tegra_lookup_dt_id(tegra_clk_blink, tegra_clks);
|
|
if (!dt_clk)
|
|
return;
|
|
|
|
clk = clk_register_gate(NULL, "blink", "blink_override", 0,
|
|
pmc_base + PMC_CTRL,
|
|
PMC_CTRL_BLINK_ENB, 0, NULL);
|
|
clk_register_clkdev(clk, "blink", NULL);
|
|
*dt_clk = clk;
|
|
}
|
|
|