Resguardo inicial

This commit is contained in:
lastdragon
2026-09-06 12:53:21 -06:00
parent 662efe3c2a
commit ad2088d178
94853 changed files with 43200404 additions and 0 deletions
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# SPDX-License-Identifier: GPL-2.0-only
config CLK_ACTIONS
bool "Clock driver for Actions Semi SoCs"
depends on ARCH_ACTIONS || COMPILE_TEST
select REGMAP_MMIO
select RESET_CONTROLLER
default ARCH_ACTIONS
if CLK_ACTIONS
# SoC Drivers
config CLK_OWL_S500
bool "Support for the Actions Semi OWL S500 clocks"
depends on ARCH_ACTIONS || COMPILE_TEST
default ARCH_ACTIONS
config CLK_OWL_S700
bool "Support for the Actions Semi OWL S700 clocks"
depends on (ARM64 && ARCH_ACTIONS) || COMPILE_TEST
default ARM64 && ARCH_ACTIONS
config CLK_OWL_S900
bool "Support for the Actions Semi OWL S900 clocks"
depends on (ARM64 && ARCH_ACTIONS) || COMPILE_TEST
default ARM64 && ARCH_ACTIONS
endif
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# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_CLK_ACTIONS) += clk-owl.o
clk-owl-y += owl-common.o
clk-owl-y += owl-gate.o
clk-owl-y += owl-mux.o
clk-owl-y += owl-divider.o
clk-owl-y += owl-factor.o
clk-owl-y += owl-composite.o
clk-owl-y += owl-pll.o
clk-owl-y += owl-reset.o
# SoC support
obj-$(CONFIG_CLK_OWL_S500) += owl-s500.o
obj-$(CONFIG_CLK_OWL_S700) += owl-s700.o
obj-$(CONFIG_CLK_OWL_S900) += owl-s900.o
@@ -0,0 +1,86 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL common clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "owl-common.h"
static const struct regmap_config owl_regmap_config = {
.reg_bits = 32,
.reg_stride = 4,
.val_bits = 32,
.max_register = 0x00cc,
};
static void owl_clk_set_regmap(const struct owl_clk_desc *desc,
struct regmap *regmap)
{
int i;
struct owl_clk_common *clks;
for (i = 0; i < desc->num_clks; i++) {
clks = desc->clks[i];
if (!clks)
continue;
clks->regmap = regmap;
}
}
int owl_clk_regmap_init(struct platform_device *pdev,
struct owl_clk_desc *desc)
{
void __iomem *base;
struct regmap *regmap;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
regmap = devm_regmap_init_mmio(&pdev->dev, base, &owl_regmap_config);
if (IS_ERR(regmap)) {
pr_err("failed to init regmap\n");
return PTR_ERR(regmap);
}
owl_clk_set_regmap(desc, regmap);
desc->regmap = regmap;
return 0;
}
int owl_clk_probe(struct device *dev, struct clk_hw_onecell_data *hw_clks)
{
int i, ret;
struct clk_hw *hw;
for (i = 0; i < hw_clks->num; i++) {
const char *name;
hw = hw_clks->hws[i];
if (IS_ERR_OR_NULL(hw))
continue;
name = hw->init->name;
ret = devm_clk_hw_register(dev, hw);
if (ret) {
dev_err(dev, "Couldn't register clock %d - %s\n",
i, name);
return ret;
}
}
ret = devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get, hw_clks);
if (ret)
dev_err(dev, "Failed to add clock provider\n");
return ret;
}
@@ -0,0 +1,44 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL common clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_COMMON_H_
#define _OWL_COMMON_H_
#include <linux/clk-provider.h>
#include <linux/regmap.h>
struct device_node;
struct platform_device;
struct owl_clk_common {
struct regmap *regmap;
struct clk_hw hw;
};
struct owl_clk_desc {
struct owl_clk_common **clks;
unsigned long num_clks;
struct clk_hw_onecell_data *hw_clks;
const struct owl_reset_map *resets;
unsigned long num_resets;
struct regmap *regmap;
};
static inline struct owl_clk_common *
hw_to_owl_clk_common(struct clk_hw *hw)
{
return container_of(hw, struct owl_clk_common, hw);
}
int owl_clk_regmap_init(struct platform_device *pdev,
struct owl_clk_desc *desc);
int owl_clk_probe(struct device *dev, struct clk_hw_onecell_data *hw_clks);
#endif /* _OWL_COMMON_H_ */
@@ -0,0 +1,207 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL composite clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "owl-composite.h"
static u8 owl_comp_get_parent(struct clk_hw *hw)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
return owl_mux_helper_get_parent(&comp->common, &comp->mux_hw);
}
static int owl_comp_set_parent(struct clk_hw *hw, u8 index)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
return owl_mux_helper_set_parent(&comp->common, &comp->mux_hw, index);
}
static void owl_comp_disable(struct clk_hw *hw)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
struct owl_clk_common *common = &comp->common;
owl_gate_set(common, &comp->gate_hw, false);
}
static int owl_comp_enable(struct clk_hw *hw)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
struct owl_clk_common *common = &comp->common;
owl_gate_set(common, &comp->gate_hw, true);
return 0;
}
static int owl_comp_is_enabled(struct clk_hw *hw)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
struct owl_clk_common *common = &comp->common;
return owl_gate_clk_is_enabled(common, &comp->gate_hw);
}
static int owl_comp_div_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
struct owl_divider_hw *div = &comp->rate.div_hw;
return divider_determine_rate(&comp->common.hw, req, div->table,
div->width, div->div_flags);
}
static unsigned long owl_comp_div_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
return owl_divider_helper_recalc_rate(&comp->common, &comp->rate.div_hw,
parent_rate);
}
static int owl_comp_div_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
return owl_divider_helper_set_rate(&comp->common, &comp->rate.div_hw,
rate, parent_rate);
}
static int owl_comp_fact_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
long rate;
rate = owl_factor_helper_round_rate(&comp->common,
&comp->rate.factor_hw,
req->rate, &req->best_parent_rate);
if (rate < 0)
return rate;
req->rate = rate;
return 0;
}
static unsigned long owl_comp_fact_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
return owl_factor_helper_recalc_rate(&comp->common,
&comp->rate.factor_hw,
parent_rate);
}
static int owl_comp_fact_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
return owl_factor_helper_set_rate(&comp->common,
&comp->rate.factor_hw,
rate, parent_rate);
}
static int owl_comp_fix_fact_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
struct clk_fixed_factor *fix_fact_hw = &comp->rate.fix_fact_hw;
return comp->fix_fact_ops->determine_rate(&fix_fact_hw->hw, req);
}
static unsigned long owl_comp_fix_fact_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct owl_composite *comp = hw_to_owl_comp(hw);
struct clk_fixed_factor *fix_fact_hw = &comp->rate.fix_fact_hw;
return comp->fix_fact_ops->recalc_rate(&fix_fact_hw->hw, parent_rate);
}
static int owl_comp_fix_fact_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
/*
* We must report success but we can do so unconditionally because
* owl_comp_fix_fact_round_rate returns values that ensure this call is
* a nop.
*/
return 0;
}
const struct clk_ops owl_comp_div_ops = {
/* mux_ops */
.get_parent = owl_comp_get_parent,
.set_parent = owl_comp_set_parent,
/* gate_ops */
.disable = owl_comp_disable,
.enable = owl_comp_enable,
.is_enabled = owl_comp_is_enabled,
/* div_ops */
.determine_rate = owl_comp_div_determine_rate,
.recalc_rate = owl_comp_div_recalc_rate,
.set_rate = owl_comp_div_set_rate,
};
const struct clk_ops owl_comp_fact_ops = {
/* mux_ops */
.get_parent = owl_comp_get_parent,
.set_parent = owl_comp_set_parent,
/* gate_ops */
.disable = owl_comp_disable,
.enable = owl_comp_enable,
.is_enabled = owl_comp_is_enabled,
/* fact_ops */
.determine_rate = owl_comp_fact_determine_rate,
.recalc_rate = owl_comp_fact_recalc_rate,
.set_rate = owl_comp_fact_set_rate,
};
const struct clk_ops owl_comp_fix_fact_ops = {
/* gate_ops */
.disable = owl_comp_disable,
.enable = owl_comp_enable,
.is_enabled = owl_comp_is_enabled,
/* fix_fact_ops */
.determine_rate = owl_comp_fix_fact_determine_rate,
.recalc_rate = owl_comp_fix_fact_recalc_rate,
.set_rate = owl_comp_fix_fact_set_rate,
};
const struct clk_ops owl_comp_pass_ops = {
/* mux_ops */
.determine_rate = clk_hw_determine_rate_no_reparent,
.get_parent = owl_comp_get_parent,
.set_parent = owl_comp_set_parent,
/* gate_ops */
.disable = owl_comp_disable,
.enable = owl_comp_enable,
.is_enabled = owl_comp_is_enabled,
};
@@ -0,0 +1,124 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL composite clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_COMPOSITE_H_
#define _OWL_COMPOSITE_H_
#include "owl-common.h"
#include "owl-mux.h"
#include "owl-gate.h"
#include "owl-factor.h"
#include "owl-fixed-factor.h"
#include "owl-divider.h"
union owl_rate {
struct owl_divider_hw div_hw;
struct owl_factor_hw factor_hw;
struct clk_fixed_factor fix_fact_hw;
};
struct owl_composite {
struct owl_mux_hw mux_hw;
struct owl_gate_hw gate_hw;
union owl_rate rate;
const struct clk_ops *fix_fact_ops;
struct owl_clk_common common;
};
#define OWL_COMP_DIV(_struct, _name, _parent, \
_mux, _gate, _div, _flags) \
struct owl_composite _struct = { \
.mux_hw = _mux, \
.gate_hw = _gate, \
.rate.div_hw = _div, \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_PARENTS(_name, \
_parent, \
&owl_comp_div_ops,\
_flags), \
}, \
}
#define OWL_COMP_DIV_FIXED(_struct, _name, _parent, \
_gate, _div, _flags) \
struct owl_composite _struct = { \
.gate_hw = _gate, \
.rate.div_hw = _div, \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&owl_comp_div_ops,\
_flags), \
}, \
}
#define OWL_COMP_FACTOR(_struct, _name, _parent, \
_mux, _gate, _factor, _flags) \
struct owl_composite _struct = { \
.mux_hw = _mux, \
.gate_hw = _gate, \
.rate.factor_hw = _factor, \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_PARENTS(_name, \
_parent, \
&owl_comp_fact_ops,\
_flags), \
}, \
}
#define OWL_COMP_FIXED_FACTOR(_struct, _name, _parent, \
_gate, _mul, _div, _flags) \
struct owl_composite _struct = { \
.gate_hw = _gate, \
.rate.fix_fact_hw.mult = _mul, \
.rate.fix_fact_hw.div = _div, \
.fix_fact_ops = &clk_fixed_factor_ops, \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&owl_comp_fix_fact_ops,\
_flags), \
}, \
}
#define OWL_COMP_PASS(_struct, _name, _parent, \
_mux, _gate, _flags) \
struct owl_composite _struct = { \
.mux_hw = _mux, \
.gate_hw = _gate, \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_PARENTS(_name, \
_parent, \
&owl_comp_pass_ops,\
_flags), \
}, \
}
static inline struct owl_composite *hw_to_owl_comp(struct clk_hw *hw)
{
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
return container_of(common, struct owl_composite, common);
}
extern const struct clk_ops owl_comp_div_ops;
extern const struct clk_ops owl_comp_fact_ops;
extern const struct clk_ops owl_comp_fix_fact_ops;
extern const struct clk_ops owl_comp_pass_ops;
extern const struct clk_ops clk_fixed_factor_ops;
#endif /* _OWL_COMPOSITE_H_ */
@@ -0,0 +1,84 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL divider clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "owl-divider.h"
static int owl_divider_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct owl_divider *div = hw_to_owl_divider(hw);
return divider_determine_rate(hw, req, div->div_hw.table,
div->div_hw.width, div->div_hw.div_flags);
}
unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common,
const struct owl_divider_hw *div_hw,
unsigned long parent_rate)
{
unsigned long val;
unsigned int reg;
regmap_read(common->regmap, div_hw->reg, &reg);
val = reg >> div_hw->shift;
val &= (1 << div_hw->width) - 1;
return divider_recalc_rate(&common->hw, parent_rate,
val, div_hw->table,
div_hw->div_flags,
div_hw->width);
}
static unsigned long owl_divider_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct owl_divider *div = hw_to_owl_divider(hw);
return owl_divider_helper_recalc_rate(&div->common,
&div->div_hw, parent_rate);
}
int owl_divider_helper_set_rate(const struct owl_clk_common *common,
const struct owl_divider_hw *div_hw,
unsigned long rate,
unsigned long parent_rate)
{
unsigned long val;
unsigned int reg;
val = divider_get_val(rate, parent_rate, div_hw->table,
div_hw->width, 0);
regmap_read(common->regmap, div_hw->reg, &reg);
reg &= ~GENMASK(div_hw->width + div_hw->shift - 1, div_hw->shift);
regmap_write(common->regmap, div_hw->reg,
reg | (val << div_hw->shift));
return 0;
}
static int owl_divider_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct owl_divider *div = hw_to_owl_divider(hw);
return owl_divider_helper_set_rate(&div->common, &div->div_hw,
rate, parent_rate);
}
const struct clk_ops owl_divider_ops = {
.recalc_rate = owl_divider_recalc_rate,
.determine_rate = owl_divider_determine_rate,
.set_rate = owl_divider_set_rate,
};
@@ -0,0 +1,70 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL divider clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_DIVIDER_H_
#define _OWL_DIVIDER_H_
#include "owl-common.h"
struct owl_divider_hw {
u32 reg;
u8 shift;
u8 width;
u8 div_flags;
struct clk_div_table *table;
};
struct owl_divider {
struct owl_divider_hw div_hw;
struct owl_clk_common common;
};
#define OWL_DIVIDER_HW(_reg, _shift, _width, _div_flags, _table) \
{ \
.reg = _reg, \
.shift = _shift, \
.width = _width, \
.div_flags = _div_flags, \
.table = _table, \
}
#define OWL_DIVIDER(_struct, _name, _parent, _reg, \
_shift, _width, _table, _div_flags, _flags) \
struct owl_divider _struct = { \
.div_hw = OWL_DIVIDER_HW(_reg, _shift, _width, \
_div_flags, _table), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&owl_divider_ops, \
_flags), \
}, \
}
static inline struct owl_divider *hw_to_owl_divider(struct clk_hw *hw)
{
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
return container_of(common, struct owl_divider, common);
}
unsigned long owl_divider_helper_recalc_rate(struct owl_clk_common *common,
const struct owl_divider_hw *div_hw,
unsigned long parent_rate);
int owl_divider_helper_set_rate(const struct owl_clk_common *common,
const struct owl_divider_hw *div_hw,
unsigned long rate,
unsigned long parent_rate);
extern const struct clk_ops owl_divider_ops;
#endif /* _OWL_DIVIDER_H_ */
@@ -0,0 +1,222 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL factor clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "owl-factor.h"
static unsigned int _get_table_maxval(const struct clk_factor_table *table)
{
unsigned int maxval = 0;
const struct clk_factor_table *clkt;
for (clkt = table; clkt->div; clkt++)
if (clkt->val > maxval)
maxval = clkt->val;
return maxval;
}
static int _get_table_div_mul(const struct clk_factor_table *table,
unsigned int val, unsigned int *mul, unsigned int *div)
{
const struct clk_factor_table *clkt;
for (clkt = table; clkt->div; clkt++) {
if (clkt->val == val) {
*mul = clkt->mul;
*div = clkt->div;
return 1;
}
}
return 0;
}
static unsigned int _get_table_val(const struct clk_factor_table *table,
unsigned long rate, unsigned long parent_rate)
{
const struct clk_factor_table *clkt;
int val = -1;
u64 calc_rate;
for (clkt = table; clkt->div; clkt++) {
calc_rate = parent_rate * clkt->mul;
do_div(calc_rate, clkt->div);
if ((unsigned long)calc_rate <= rate) {
val = clkt->val;
break;
}
}
if (val == -1)
val = _get_table_maxval(table);
return val;
}
static int owl_clk_val_best(const struct owl_factor_hw *factor_hw,
struct clk_hw *hw, unsigned long rate,
unsigned long *best_parent_rate)
{
const struct clk_factor_table *clkt = factor_hw->table;
unsigned long parent_rate, try_parent_rate, best = 0, cur_rate;
unsigned long parent_rate_saved = *best_parent_rate;
int bestval = 0;
if (!rate)
rate = 1;
if (!(clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) {
parent_rate = *best_parent_rate;
bestval = _get_table_val(clkt, rate, parent_rate);
return bestval;
}
for (clkt = factor_hw->table; clkt->div; clkt++) {
try_parent_rate = rate * clkt->div / clkt->mul;
if (try_parent_rate == parent_rate_saved) {
pr_debug("%s: [%d %d %d] found try_parent_rate %ld\n",
__func__, clkt->val, clkt->mul, clkt->div,
try_parent_rate);
/*
* It's the most ideal case if the requested rate can be
* divided from parent clock without any need to change
* parent rate, so return the divider immediately.
*/
*best_parent_rate = parent_rate_saved;
return clkt->val;
}
parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw),
try_parent_rate);
cur_rate = DIV_ROUND_UP(parent_rate, clkt->div) * clkt->mul;
if (cur_rate <= rate && cur_rate > best) {
bestval = clkt->val;
best = cur_rate;
*best_parent_rate = parent_rate;
}
}
if (!bestval) {
bestval = _get_table_maxval(clkt);
*best_parent_rate = clk_hw_round_rate(
clk_hw_get_parent(hw), 1);
}
return bestval;
}
long owl_factor_helper_round_rate(struct owl_clk_common *common,
const struct owl_factor_hw *factor_hw,
unsigned long rate,
unsigned long *parent_rate)
{
const struct clk_factor_table *clkt = factor_hw->table;
unsigned int val, mul = 0, div = 1;
val = owl_clk_val_best(factor_hw, &common->hw, rate, parent_rate);
_get_table_div_mul(clkt, val, &mul, &div);
return *parent_rate * mul / div;
}
static int owl_factor_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct owl_factor *factor = hw_to_owl_factor(hw);
struct owl_factor_hw *factor_hw = &factor->factor_hw;
req->rate = owl_factor_helper_round_rate(&factor->common, factor_hw,
req->rate, &req->best_parent_rate);
return 0;
}
unsigned long owl_factor_helper_recalc_rate(struct owl_clk_common *common,
const struct owl_factor_hw *factor_hw,
unsigned long parent_rate)
{
const struct clk_factor_table *clkt = factor_hw->table;
unsigned long long int rate;
u32 reg, val, mul, div;
div = 0;
mul = 0;
regmap_read(common->regmap, factor_hw->reg, &reg);
val = reg >> factor_hw->shift;
val &= div_mask(factor_hw);
_get_table_div_mul(clkt, val, &mul, &div);
if (!div) {
WARN(!(factor_hw->fct_flags & CLK_DIVIDER_ALLOW_ZERO),
"%s: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set\n",
__clk_get_name(common->hw.clk));
return parent_rate;
}
rate = (unsigned long long int)parent_rate * mul;
do_div(rate, div);
return rate;
}
static unsigned long owl_factor_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct owl_factor *factor = hw_to_owl_factor(hw);
struct owl_factor_hw *factor_hw = &factor->factor_hw;
struct owl_clk_common *common = &factor->common;
return owl_factor_helper_recalc_rate(common, factor_hw, parent_rate);
}
int owl_factor_helper_set_rate(const struct owl_clk_common *common,
const struct owl_factor_hw *factor_hw,
unsigned long rate,
unsigned long parent_rate)
{
u32 val, reg;
val = _get_table_val(factor_hw->table, rate, parent_rate);
if (val > div_mask(factor_hw))
val = div_mask(factor_hw);
regmap_read(common->regmap, factor_hw->reg, &reg);
reg &= ~(div_mask(factor_hw) << factor_hw->shift);
reg |= val << factor_hw->shift;
regmap_write(common->regmap, factor_hw->reg, reg);
return 0;
}
static int owl_factor_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct owl_factor *factor = hw_to_owl_factor(hw);
struct owl_factor_hw *factor_hw = &factor->factor_hw;
struct owl_clk_common *common = &factor->common;
return owl_factor_helper_set_rate(common, factor_hw,
rate, parent_rate);
}
const struct clk_ops owl_factor_ops = {
.determine_rate = owl_factor_determine_rate,
.recalc_rate = owl_factor_recalc_rate,
.set_rate = owl_factor_set_rate,
};
@@ -0,0 +1,83 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL factor clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_FACTOR_H_
#define _OWL_FACTOR_H_
#include "owl-common.h"
struct clk_factor_table {
unsigned int val;
unsigned int mul;
unsigned int div;
};
struct owl_factor_hw {
u32 reg;
u8 shift;
u8 width;
u8 fct_flags;
struct clk_factor_table *table;
};
struct owl_factor {
struct owl_factor_hw factor_hw;
struct owl_clk_common common;
};
#define OWL_FACTOR_HW(_reg, _shift, _width, _fct_flags, _table) \
{ \
.reg = _reg, \
.shift = _shift, \
.width = _width, \
.fct_flags = _fct_flags, \
.table = _table, \
}
#define OWL_FACTOR(_struct, _name, _parent, _reg, \
_shift, _width, _table, _fct_flags, _flags) \
struct owl_factor _struct = { \
.factor_hw = OWL_FACTOR_HW(_reg, _shift, \
_width, _fct_flags, _table), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&owl_factor_ops, \
_flags), \
}, \
}
#define div_mask(d) ((1 << ((d)->width)) - 1)
static inline struct owl_factor *hw_to_owl_factor(struct clk_hw *hw)
{
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
return container_of(common, struct owl_factor, common);
}
long owl_factor_helper_round_rate(struct owl_clk_common *common,
const struct owl_factor_hw *factor_hw,
unsigned long rate,
unsigned long *parent_rate);
unsigned long owl_factor_helper_recalc_rate(struct owl_clk_common *common,
const struct owl_factor_hw *factor_hw,
unsigned long parent_rate);
int owl_factor_helper_set_rate(const struct owl_clk_common *common,
const struct owl_factor_hw *factor_hw,
unsigned long rate,
unsigned long parent_rate);
extern const struct clk_ops owl_factor_ops;
#endif /* _OWL_FACTOR_H_ */
@@ -0,0 +1,28 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL fixed factor clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_FIXED_FACTOR_H_
#define _OWL_FIXED_FACTOR_H_
#include "owl-common.h"
#define OWL_FIX_FACT(_struct, _name, _parent, _mul, _div, _flags) \
struct clk_fixed_factor _struct = { \
.mult = _mul, \
.div = _div, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&clk_fixed_factor_ops, \
_flags), \
}
extern const struct clk_ops clk_fixed_factor_ops;
#endif /* _OWL_FIXED_FACTOR_H_ */
@@ -0,0 +1,77 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL gate clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "owl-gate.h"
void owl_gate_set(const struct owl_clk_common *common,
const struct owl_gate_hw *gate_hw, bool enable)
{
int set = gate_hw->gate_flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0;
u32 reg;
set ^= enable;
regmap_read(common->regmap, gate_hw->reg, &reg);
if (set)
reg |= BIT(gate_hw->bit_idx);
else
reg &= ~BIT(gate_hw->bit_idx);
regmap_write(common->regmap, gate_hw->reg, reg);
}
static void owl_gate_disable(struct clk_hw *hw)
{
struct owl_gate *gate = hw_to_owl_gate(hw);
struct owl_clk_common *common = &gate->common;
owl_gate_set(common, &gate->gate_hw, false);
}
static int owl_gate_enable(struct clk_hw *hw)
{
struct owl_gate *gate = hw_to_owl_gate(hw);
struct owl_clk_common *common = &gate->common;
owl_gate_set(common, &gate->gate_hw, true);
return 0;
}
int owl_gate_clk_is_enabled(const struct owl_clk_common *common,
const struct owl_gate_hw *gate_hw)
{
u32 reg;
regmap_read(common->regmap, gate_hw->reg, &reg);
if (gate_hw->gate_flags & CLK_GATE_SET_TO_DISABLE)
reg ^= BIT(gate_hw->bit_idx);
return !!(reg & BIT(gate_hw->bit_idx));
}
static int owl_gate_is_enabled(struct clk_hw *hw)
{
struct owl_gate *gate = hw_to_owl_gate(hw);
struct owl_clk_common *common = &gate->common;
return owl_gate_clk_is_enabled(common, &gate->gate_hw);
}
const struct clk_ops owl_gate_ops = {
.disable = owl_gate_disable,
.enable = owl_gate_enable,
.is_enabled = owl_gate_is_enabled,
};
@@ -0,0 +1,73 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL gate clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_GATE_H_
#define _OWL_GATE_H_
#include "owl-common.h"
struct owl_gate_hw {
u32 reg;
u8 bit_idx;
u8 gate_flags;
};
struct owl_gate {
struct owl_gate_hw gate_hw;
struct owl_clk_common common;
};
#define OWL_GATE_HW(_reg, _bit_idx, _gate_flags) \
{ \
.reg = _reg, \
.bit_idx = _bit_idx, \
.gate_flags = _gate_flags, \
}
#define OWL_GATE(_struct, _name, _parent, _reg, \
_bit_idx, _gate_flags, _flags) \
struct owl_gate _struct = { \
.gate_hw = OWL_GATE_HW(_reg, _bit_idx, _gate_flags), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&owl_gate_ops, \
_flags), \
} \
} \
#define OWL_GATE_NO_PARENT(_struct, _name, _reg, \
_bit_idx, _gate_flags, _flags) \
struct owl_gate _struct = { \
.gate_hw = OWL_GATE_HW(_reg, _bit_idx, _gate_flags), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_NO_PARENT(_name, \
&owl_gate_ops, \
_flags), \
}, \
} \
static inline struct owl_gate *hw_to_owl_gate(struct clk_hw *hw)
{
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
return container_of(common, struct owl_gate, common);
}
void owl_gate_set(const struct owl_clk_common *common,
const struct owl_gate_hw *gate_hw, bool enable);
int owl_gate_clk_is_enabled(const struct owl_clk_common *common,
const struct owl_gate_hw *gate_hw);
extern const struct clk_ops owl_gate_ops;
#endif /* _OWL_GATE_H_ */
+60
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@@ -0,0 +1,60 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL mux clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/regmap.h>
#include "owl-mux.h"
u8 owl_mux_helper_get_parent(const struct owl_clk_common *common,
const struct owl_mux_hw *mux_hw)
{
u32 reg;
u8 parent;
regmap_read(common->regmap, mux_hw->reg, &reg);
parent = reg >> mux_hw->shift;
parent &= BIT(mux_hw->width) - 1;
return parent;
}
static u8 owl_mux_get_parent(struct clk_hw *hw)
{
struct owl_mux *mux = hw_to_owl_mux(hw);
return owl_mux_helper_get_parent(&mux->common, &mux->mux_hw);
}
int owl_mux_helper_set_parent(const struct owl_clk_common *common,
struct owl_mux_hw *mux_hw, u8 index)
{
u32 reg;
regmap_read(common->regmap, mux_hw->reg, &reg);
reg &= ~GENMASK(mux_hw->width + mux_hw->shift - 1, mux_hw->shift);
regmap_write(common->regmap, mux_hw->reg,
reg | (index << mux_hw->shift));
return 0;
}
static int owl_mux_set_parent(struct clk_hw *hw, u8 index)
{
struct owl_mux *mux = hw_to_owl_mux(hw);
return owl_mux_helper_set_parent(&mux->common, &mux->mux_hw, index);
}
const struct clk_ops owl_mux_ops = {
.get_parent = owl_mux_get_parent,
.set_parent = owl_mux_set_parent,
.determine_rate = __clk_mux_determine_rate,
};
+61
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@@ -0,0 +1,61 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL mux clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_MUX_H_
#define _OWL_MUX_H_
#include "owl-common.h"
struct owl_mux_hw {
u32 reg;
u8 shift;
u8 width;
};
struct owl_mux {
struct owl_mux_hw mux_hw;
struct owl_clk_common common;
};
#define OWL_MUX_HW(_reg, _shift, _width) \
{ \
.reg = _reg, \
.shift = _shift, \
.width = _width, \
}
#define OWL_MUX(_struct, _name, _parents, _reg, \
_shift, _width, _flags) \
struct owl_mux _struct = { \
.mux_hw = OWL_MUX_HW(_reg, _shift, _width), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_PARENTS(_name, \
_parents, \
&owl_mux_ops, \
_flags), \
}, \
}
static inline struct owl_mux *hw_to_owl_mux(struct clk_hw *hw)
{
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
return container_of(common, struct owl_mux, common);
}
u8 owl_mux_helper_get_parent(const struct owl_clk_common *common,
const struct owl_mux_hw *mux_hw);
int owl_mux_helper_set_parent(const struct owl_clk_common *common,
struct owl_mux_hw *mux_hw, u8 index);
extern const struct clk_ops owl_mux_ops;
#endif /* _OWL_MUX_H_ */
+201
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@@ -0,0 +1,201 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL pll clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <linux/delay.h>
#include "owl-pll.h"
static u32 owl_pll_calculate_mul(struct owl_pll_hw *pll_hw, unsigned long rate)
{
u32 mul;
mul = DIV_ROUND_CLOSEST(rate, pll_hw->bfreq);
if (mul < pll_hw->min_mul)
mul = pll_hw->min_mul;
else if (mul > pll_hw->max_mul)
mul = pll_hw->max_mul;
return mul & mul_mask(pll_hw);
}
static unsigned long _get_table_rate(const struct clk_pll_table *table,
unsigned int val)
{
const struct clk_pll_table *clkt;
for (clkt = table; clkt->rate; clkt++)
if (clkt->val == val)
return clkt->rate;
return 0;
}
static const struct clk_pll_table *_get_pll_table(
const struct clk_pll_table *table, unsigned long rate)
{
const struct clk_pll_table *clkt;
for (clkt = table; clkt->rate; clkt++) {
if (clkt->rate == rate) {
table = clkt;
break;
} else if (clkt->rate < rate)
table = clkt;
}
return table;
}
static int owl_pll_determine_rate(struct clk_hw *hw,
struct clk_rate_request *req)
{
struct owl_pll *pll = hw_to_owl_pll(hw);
struct owl_pll_hw *pll_hw = &pll->pll_hw;
const struct clk_pll_table *clkt;
u32 mul;
if (pll_hw->table) {
clkt = _get_pll_table(pll_hw->table, req->rate);
req->rate = clkt->rate;
return 0;
}
/* fixed frequency */
if (pll_hw->width == 0) {
req->rate = pll_hw->bfreq;
return 0;
}
mul = owl_pll_calculate_mul(pll_hw, req->rate);
req->rate = pll_hw->bfreq * mul;
return 0;
}
static unsigned long owl_pll_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct owl_pll *pll = hw_to_owl_pll(hw);
struct owl_pll_hw *pll_hw = &pll->pll_hw;
const struct owl_clk_common *common = &pll->common;
u32 val;
if (pll_hw->table) {
regmap_read(common->regmap, pll_hw->reg, &val);
val = val >> pll_hw->shift;
val &= mul_mask(pll_hw);
return _get_table_rate(pll_hw->table, val);
}
/* fixed frequency */
if (pll_hw->width == 0)
return pll_hw->bfreq;
regmap_read(common->regmap, pll_hw->reg, &val);
val = val >> pll_hw->shift;
val &= mul_mask(pll_hw);
return pll_hw->bfreq * val;
}
static int owl_pll_is_enabled(struct clk_hw *hw)
{
struct owl_pll *pll = hw_to_owl_pll(hw);
struct owl_pll_hw *pll_hw = &pll->pll_hw;
const struct owl_clk_common *common = &pll->common;
u32 reg;
regmap_read(common->regmap, pll_hw->reg, &reg);
return !!(reg & BIT(pll_hw->bit_idx));
}
static void owl_pll_set(const struct owl_clk_common *common,
const struct owl_pll_hw *pll_hw, bool enable)
{
u32 reg;
regmap_read(common->regmap, pll_hw->reg, &reg);
if (enable)
reg |= BIT(pll_hw->bit_idx);
else
reg &= ~BIT(pll_hw->bit_idx);
regmap_write(common->regmap, pll_hw->reg, reg);
}
static int owl_pll_enable(struct clk_hw *hw)
{
struct owl_pll *pll = hw_to_owl_pll(hw);
const struct owl_clk_common *common = &pll->common;
owl_pll_set(common, &pll->pll_hw, true);
return 0;
}
static void owl_pll_disable(struct clk_hw *hw)
{
struct owl_pll *pll = hw_to_owl_pll(hw);
const struct owl_clk_common *common = &pll->common;
owl_pll_set(common, &pll->pll_hw, false);
}
static int owl_pll_set_rate(struct clk_hw *hw, unsigned long rate,
unsigned long parent_rate)
{
struct owl_pll *pll = hw_to_owl_pll(hw);
struct owl_pll_hw *pll_hw = &pll->pll_hw;
const struct owl_clk_common *common = &pll->common;
const struct clk_pll_table *clkt;
u32 val, reg;
/* fixed frequency */
if (pll_hw->width == 0)
return 0;
if (pll_hw->table) {
clkt = _get_pll_table(pll_hw->table, rate);
val = clkt->val;
} else {
val = owl_pll_calculate_mul(pll_hw, rate);
}
regmap_read(common->regmap, pll_hw->reg, &reg);
reg &= ~mul_mask(pll_hw);
reg |= val << pll_hw->shift;
regmap_write(common->regmap, pll_hw->reg, reg);
udelay(pll_hw->delay);
return 0;
}
const struct clk_ops owl_pll_ops = {
.enable = owl_pll_enable,
.disable = owl_pll_disable,
.is_enabled = owl_pll_is_enabled,
.determine_rate = owl_pll_determine_rate,
.recalc_rate = owl_pll_recalc_rate,
.set_rate = owl_pll_set_rate,
};
+110
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@@ -0,0 +1,110 @@
/* SPDX-License-Identifier: GPL-2.0+ */
//
// OWL pll clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_PLL_H_
#define _OWL_PLL_H_
#include "owl-common.h"
#define OWL_PLL_DEF_DELAY 50
/* last entry should have rate = 0 */
struct clk_pll_table {
unsigned int val;
unsigned long rate;
};
struct owl_pll_hw {
u32 reg;
u32 bfreq;
u8 bit_idx;
u8 shift;
u8 width;
u8 min_mul;
u8 max_mul;
u8 delay;
const struct clk_pll_table *table;
};
struct owl_pll {
struct owl_pll_hw pll_hw;
struct owl_clk_common common;
};
#define OWL_PLL_HW(_reg, _bfreq, _bit_idx, _shift, \
_width, _min_mul, _max_mul, _delay, _table) \
{ \
.reg = _reg, \
.bfreq = _bfreq, \
.bit_idx = _bit_idx, \
.shift = _shift, \
.width = _width, \
.min_mul = _min_mul, \
.max_mul = _max_mul, \
.delay = _delay, \
.table = _table, \
}
#define OWL_PLL(_struct, _name, _parent, _reg, _bfreq, _bit_idx, \
_shift, _width, _min_mul, _max_mul, _table, _flags) \
struct owl_pll _struct = { \
.pll_hw = OWL_PLL_HW(_reg, _bfreq, _bit_idx, _shift, \
_width, _min_mul, _max_mul, \
OWL_PLL_DEF_DELAY, _table), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT(_name, \
_parent, \
&owl_pll_ops, \
_flags), \
}, \
}
#define OWL_PLL_NO_PARENT(_struct, _name, _reg, _bfreq, _bit_idx, \
_shift, _width, _min_mul, _max_mul, _table, _flags) \
struct owl_pll _struct = { \
.pll_hw = OWL_PLL_HW(_reg, _bfreq, _bit_idx, _shift, \
_width, _min_mul, _max_mul, \
OWL_PLL_DEF_DELAY, _table), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_NO_PARENT(_name, \
&owl_pll_ops, \
_flags), \
}, \
}
#define OWL_PLL_NO_PARENT_DELAY(_struct, _name, _reg, _bfreq, _bit_idx, \
_shift, _width, _min_mul, _max_mul, _delay, _table, \
_flags) \
struct owl_pll _struct = { \
.pll_hw = OWL_PLL_HW(_reg, _bfreq, _bit_idx, _shift, \
_width, _min_mul, _max_mul, \
_delay, _table), \
.common = { \
.regmap = NULL, \
.hw.init = CLK_HW_INIT_NO_PARENT(_name, \
&owl_pll_ops, \
_flags), \
}, \
}
#define mul_mask(m) ((1 << ((m)->width)) - 1)
static inline struct owl_pll *hw_to_owl_pll(struct clk_hw *hw)
{
struct owl_clk_common *common = hw_to_owl_clk_common(hw);
return container_of(common, struct owl_pll, common);
}
extern const struct clk_ops owl_pll_ops;
#endif /* _OWL_PLL_H_ */
@@ -0,0 +1,66 @@
// SPDX-License-Identifier: GPL-2.0-or-later
//
// Actions Semi Owl SoCs Reset Management Unit driver
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/delay.h>
#include <linux/regmap.h>
#include <linux/reset-controller.h>
#include "owl-reset.h"
static int owl_reset_assert(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct owl_reset *reset = to_owl_reset(rcdev);
const struct owl_reset_map *map = &reset->reset_map[id];
return regmap_update_bits(reset->regmap, map->reg, map->bit, 0);
}
static int owl_reset_deassert(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct owl_reset *reset = to_owl_reset(rcdev);
const struct owl_reset_map *map = &reset->reset_map[id];
return regmap_update_bits(reset->regmap, map->reg, map->bit, map->bit);
}
static int owl_reset_reset(struct reset_controller_dev *rcdev,
unsigned long id)
{
owl_reset_assert(rcdev, id);
udelay(1);
owl_reset_deassert(rcdev, id);
return 0;
}
static int owl_reset_status(struct reset_controller_dev *rcdev,
unsigned long id)
{
struct owl_reset *reset = to_owl_reset(rcdev);
const struct owl_reset_map *map = &reset->reset_map[id];
u32 reg;
int ret;
ret = regmap_read(reset->regmap, map->reg, &reg);
if (ret)
return ret;
/*
* The reset control API expects 0 if reset is not asserted,
* which is the opposite of what our hardware uses.
*/
return !(map->bit & reg);
}
const struct reset_control_ops owl_reset_ops = {
.assert = owl_reset_assert,
.deassert = owl_reset_deassert,
.reset = owl_reset_reset,
.status = owl_reset_status,
};
@@ -0,0 +1,31 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
//
// Actions Semi Owl SoCs Reset Management Unit driver
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#ifndef _OWL_RESET_H_
#define _OWL_RESET_H_
#include <linux/reset-controller.h>
struct owl_reset_map {
u32 reg;
u32 bit;
};
struct owl_reset {
struct reset_controller_dev rcdev;
const struct owl_reset_map *reset_map;
struct regmap *regmap;
};
static inline struct owl_reset *to_owl_reset(struct reset_controller_dev *rcdev)
{
return container_of(rcdev, struct owl_reset, rcdev);
}
extern const struct reset_control_ops owl_reset_ops;
#endif /* _OWL_RESET_H_ */
+642
View File
@@ -0,0 +1,642 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Actions Semi Owl S500 SoC clock driver
*
* Copyright (c) 2014 Actions Semi Inc.
* Author: David Liu <liuwei@actions-semi.com>
*
* Copyright (c) 2018 Linaro Ltd.
* Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
*
* Copyright (c) 2018 LSI-TEC - Caninos Loucos
* Author: Edgar Bernardi Righi <edgar.righi@lsitec.org.br>
*/
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include "owl-common.h"
#include "owl-composite.h"
#include "owl-divider.h"
#include "owl-factor.h"
#include "owl-fixed-factor.h"
#include "owl-gate.h"
#include "owl-mux.h"
#include "owl-pll.h"
#include "owl-reset.h"
#include <dt-bindings/clock/actions,s500-cmu.h>
#include <dt-bindings/reset/actions,s500-reset.h>
#define CMU_COREPLL (0x0000)
#define CMU_DEVPLL (0x0004)
#define CMU_DDRPLL (0x0008)
#define CMU_NANDPLL (0x000C)
#define CMU_DISPLAYPLL (0x0010)
#define CMU_AUDIOPLL (0x0014)
#define CMU_TVOUTPLL (0x0018)
#define CMU_BUSCLK (0x001C)
#define CMU_SENSORCLK (0x0020)
#define CMU_LCDCLK (0x0024)
#define CMU_DSICLK (0x0028)
#define CMU_CSICLK (0x002C)
#define CMU_DECLK (0x0030)
#define CMU_BISPCLK (0x0034)
#define CMU_BUSCLK1 (0x0038)
#define CMU_VDECLK (0x0040)
#define CMU_VCECLK (0x0044)
#define CMU_NANDCCLK (0x004C)
#define CMU_SD0CLK (0x0050)
#define CMU_SD1CLK (0x0054)
#define CMU_SD2CLK (0x0058)
#define CMU_UART0CLK (0x005C)
#define CMU_UART1CLK (0x0060)
#define CMU_UART2CLK (0x0064)
#define CMU_PWM4CLK (0x0068)
#define CMU_PWM5CLK (0x006C)
#define CMU_PWM0CLK (0x0070)
#define CMU_PWM1CLK (0x0074)
#define CMU_PWM2CLK (0x0078)
#define CMU_PWM3CLK (0x007C)
#define CMU_USBPLL (0x0080)
#define CMU_ETHERNETPLL (0x0084)
#define CMU_CVBSPLL (0x0088)
#define CMU_LENSCLK (0x008C)
#define CMU_GPU3DCLK (0x0090)
#define CMU_CORECTL (0x009C)
#define CMU_DEVCLKEN0 (0x00A0)
#define CMU_DEVCLKEN1 (0x00A4)
#define CMU_DEVRST0 (0x00A8)
#define CMU_DEVRST1 (0x00AC)
#define CMU_UART3CLK (0x00B0)
#define CMU_UART4CLK (0x00B4)
#define CMU_UART5CLK (0x00B8)
#define CMU_UART6CLK (0x00BC)
#define CMU_SSCLK (0x00C0)
#define CMU_DIGITALDEBUG (0x00D0)
#define CMU_ANALOGDEBUG (0x00D4)
#define CMU_COREPLLDEBUG (0x00D8)
#define CMU_DEVPLLDEBUG (0x00DC)
#define CMU_DDRPLLDEBUG (0x00E0)
#define CMU_NANDPLLDEBUG (0x00E4)
#define CMU_DISPLAYPLLDEBUG (0x00E8)
#define CMU_TVOUTPLLDEBUG (0x00EC)
#define CMU_DEEPCOLORPLLDEBUG (0x00F4)
#define CMU_AUDIOPLL_ETHPLLDEBUG (0x00F8)
#define CMU_CVBSPLLDEBUG (0x00FC)
#define OWL_S500_COREPLL_DELAY (150)
#define OWL_S500_DDRPLL_DELAY (63)
#define OWL_S500_DEVPLL_DELAY (28)
#define OWL_S500_NANDPLL_DELAY (44)
#define OWL_S500_DISPLAYPLL_DELAY (57)
#define OWL_S500_ETHERNETPLL_DELAY (25)
#define OWL_S500_AUDIOPLL_DELAY (100)
static const struct clk_pll_table clk_audio_pll_table[] = {
{ 0, 45158400 }, { 1, 49152000 },
{ /* sentinel */ }
};
/* pll clocks */
static OWL_PLL_NO_PARENT_DELAY(ethernet_pll_clk, "ethernet_pll_clk", CMU_ETHERNETPLL, 500000000, 0, 0, 0, 0, 0, OWL_S500_ETHERNETPLL_DELAY, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT_DELAY(core_pll_clk, "core_pll_clk", CMU_COREPLL, 12000000, 9, 0, 8, 4, 134, OWL_S500_COREPLL_DELAY, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT_DELAY(ddr_pll_clk, "ddr_pll_clk", CMU_DDRPLL, 12000000, 8, 0, 8, 1, 67, OWL_S500_DDRPLL_DELAY, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT_DELAY(nand_pll_clk, "nand_pll_clk", CMU_NANDPLL, 6000000, 8, 0, 7, 2, 86, OWL_S500_NANDPLL_DELAY, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT_DELAY(display_pll_clk, "display_pll_clk", CMU_DISPLAYPLL, 6000000, 8, 0, 8, 2, 126, OWL_S500_DISPLAYPLL_DELAY, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT_DELAY(dev_pll_clk, "dev_pll_clk", CMU_DEVPLL, 6000000, 8, 0, 7, 8, 126, OWL_S500_DEVPLL_DELAY, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT_DELAY(audio_pll_clk, "audio_pll_clk", CMU_AUDIOPLL, 0, 4, 0, 1, 0, 0, OWL_S500_AUDIOPLL_DELAY, clk_audio_pll_table, CLK_IGNORE_UNUSED);
static const char * const dev_clk_mux_p[] = { "hosc", "dev_pll_clk" };
static const char * const bisp_clk_mux_p[] = { "display_pll_clk", "dev_clk" };
static const char * const sensor_clk_mux_p[] = { "hosc", "bisp_clk" };
static const char * const sd_clk_mux_p[] = { "dev_clk", "nand_pll_clk" };
static const char * const pwm_clk_mux_p[] = { "losc", "hosc" };
static const char * const ahbprediv_clk_mux_p[] = { "dev_clk", "display_pll_clk", "nand_pll_clk", "ddr_pll_clk" };
static const char * const nic_clk_mux_p[] = { "dev_clk", "display_pll_clk", "nand_pll_clk", "ddr_pll_clk" };
static const char * const uart_clk_mux_p[] = { "hosc", "dev_pll_clk" };
static const char * const de_clk_mux_p[] = { "display_pll_clk", "dev_clk" };
static const char * const i2s_clk_mux_p[] = { "audio_pll_clk" };
static const char * const hde_clk_mux_p[] = { "dev_clk", "display_pll_clk", "nand_pll_clk", "ddr_pll_clk" };
static const char * const nand_clk_mux_p[] = { "nand_pll_clk", "display_pll_clk", "dev_clk", "ddr_pll_clk" };
static struct clk_factor_table sd_factor_table[] = {
/* bit0 ~ 4 */
{ 0, 1, 1 }, { 1, 1, 2 }, { 2, 1, 3 }, { 3, 1, 4 },
{ 4, 1, 5 }, { 5, 1, 6 }, { 6, 1, 7 }, { 7, 1, 8 },
{ 8, 1, 9 }, { 9, 1, 10 }, { 10, 1, 11 }, { 11, 1, 12 },
{ 12, 1, 13 }, { 13, 1, 14 }, { 14, 1, 15 }, { 15, 1, 16 },
{ 16, 1, 17 }, { 17, 1, 18 }, { 18, 1, 19 }, { 19, 1, 20 },
{ 20, 1, 21 }, { 21, 1, 22 }, { 22, 1, 23 }, { 23, 1, 24 },
{ 24, 1, 25 },
/* bit8: /128 */
{ 256, 1, 1 * 128 }, { 257, 1, 2 * 128 }, { 258, 1, 3 * 128 }, { 259, 1, 4 * 128 },
{ 260, 1, 5 * 128 }, { 261, 1, 6 * 128 }, { 262, 1, 7 * 128 }, { 263, 1, 8 * 128 },
{ 264, 1, 9 * 128 }, { 265, 1, 10 * 128 }, { 266, 1, 11 * 128 }, { 267, 1, 12 * 128 },
{ 268, 1, 13 * 128 }, { 269, 1, 14 * 128 }, { 270, 1, 15 * 128 }, { 271, 1, 16 * 128 },
{ 272, 1, 17 * 128 }, { 273, 1, 18 * 128 }, { 274, 1, 19 * 128 }, { 275, 1, 20 * 128 },
{ 276, 1, 21 * 128 }, { 277, 1, 22 * 128 }, { 278, 1, 23 * 128 }, { 279, 1, 24 * 128 },
{ 280, 1, 25 * 128 },
{ /* sentinel */ }
};
static struct clk_factor_table de_factor_table[] = {
{ 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 2, 5 },
{ 4, 1, 3 }, { 5, 1, 4 }, { 6, 1, 6 }, { 7, 1, 8 },
{ 8, 1, 12 },
{ /* sentinel */ }
};
static struct clk_factor_table hde_factor_table[] = {
{ 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 2, 5 },
{ 4, 1, 3 }, { 5, 1, 4 }, { 6, 1, 6 }, { 7, 1, 8 },
{ /* sentinel */ }
};
static struct clk_div_table rmii_ref_div_table[] = {
{ 0, 4 }, { 1, 10 },
{ /* sentinel */ }
};
static struct clk_div_table std12rate_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
{ 4, 5 }, { 5, 6 }, { 6, 7 }, { 7, 8 },
{ 8, 9 }, { 9, 10 }, { 10, 11 }, { 11, 12 },
{ /* sentinel */ }
};
static struct clk_div_table i2s_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
{ 4, 6 }, { 5, 8 }, { 6, 12 }, { 7, 16 },
{ 8, 24 },
{ /* sentinel */ }
};
static struct clk_div_table nand_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 6 },
{ 4, 8 }, { 5, 10 }, { 6, 12 }, { 7, 14 },
{ 8, 16 }, { 9, 18 }, { 10, 20 }, { 11, 22 },
{ /* sentinel */ }
};
/* mux clock */
static OWL_MUX(dev_clk, "dev_clk", dev_clk_mux_p, CMU_DEVPLL, 12, 1, CLK_SET_RATE_PARENT);
/* gate clocks */
static OWL_GATE(gpio_clk, "gpio_clk", "apb_clk", CMU_DEVCLKEN0, 18, 0, 0);
static OWL_GATE(dmac_clk, "dmac_clk", "h_clk", CMU_DEVCLKEN0, 1, 0, 0);
static OWL_GATE(spi0_clk, "spi0_clk", "ahb_clk", CMU_DEVCLKEN1, 10, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(spi1_clk, "spi1_clk", "ahb_clk", CMU_DEVCLKEN1, 11, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(spi2_clk, "spi2_clk", "ahb_clk", CMU_DEVCLKEN1, 12, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(spi3_clk, "spi3_clk", "ahb_clk", CMU_DEVCLKEN1, 13, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(timer_clk, "timer_clk", "hosc", CMU_DEVCLKEN1, 27, 0, 0);
static OWL_GATE(hdmi_clk, "hdmi_clk", "hosc", CMU_DEVCLKEN1, 3, 0, 0);
/* divider clocks */
static OWL_DIVIDER(h_clk, "h_clk", "ahbprediv_clk", CMU_BUSCLK1, 2, 2, NULL, 0, 0);
static OWL_DIVIDER(apb_clk, "apb_clk", "nic_clk", CMU_BUSCLK1, 14, 2, NULL, 0, 0);
static OWL_DIVIDER(rmii_ref_clk, "rmii_ref_clk", "ethernet_pll_clk", CMU_ETHERNETPLL, 1, 1, rmii_ref_div_table, 0, 0);
/* factor clocks */
static OWL_FACTOR(de1_clk, "de_clk1", "de_clk", CMU_DECLK, 0, 4, de_factor_table, 0, 0);
static OWL_FACTOR(de2_clk, "de_clk2", "de_clk", CMU_DECLK, 4, 4, de_factor_table, 0, 0);
/* composite clocks */
static OWL_COMP_DIV(nic_clk, "nic_clk", nic_clk_mux_p,
OWL_MUX_HW(CMU_BUSCLK1, 4, 3),
{ 0 },
OWL_DIVIDER_HW(CMU_BUSCLK1, 16, 2, 0, NULL),
0);
static OWL_COMP_DIV(ahbprediv_clk, "ahbprediv_clk", ahbprediv_clk_mux_p,
OWL_MUX_HW(CMU_BUSCLK1, 8, 3),
{ 0 },
OWL_DIVIDER_HW(CMU_BUSCLK1, 12, 2, 0, NULL),
CLK_SET_RATE_PARENT);
static OWL_COMP_FIXED_FACTOR(ahb_clk, "ahb_clk", "h_clk",
{ 0 },
1, 1, 0);
static OWL_COMP_FACTOR(vce_clk, "vce_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_VCECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 26, 0),
OWL_FACTOR_HW(CMU_VCECLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_FACTOR(vde_clk, "vde_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_VDECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 25, 0),
OWL_FACTOR_HW(CMU_VDECLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_DIV(bisp_clk, "bisp_clk", bisp_clk_mux_p,
OWL_MUX_HW(CMU_BISPCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
OWL_DIVIDER_HW(CMU_BISPCLK, 0, 4, 0, std12rate_div_table),
0);
static OWL_COMP_DIV(sensor0_clk, "sensor0_clk", sensor_clk_mux_p,
OWL_MUX_HW(CMU_SENSORCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
OWL_DIVIDER_HW(CMU_SENSORCLK, 0, 4, 0, std12rate_div_table),
0);
static OWL_COMP_DIV(sensor1_clk, "sensor1_clk", sensor_clk_mux_p,
OWL_MUX_HW(CMU_SENSORCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
OWL_DIVIDER_HW(CMU_SENSORCLK, 8, 4, 0, std12rate_div_table),
0);
static OWL_COMP_FACTOR(sd0_clk, "sd0_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD0CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 5, 0),
OWL_FACTOR_HW(CMU_SD0CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(sd1_clk, "sd1_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD1CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 6, 0),
OWL_FACTOR_HW(CMU_SD1CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(sd2_clk, "sd2_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD2CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 7, 0),
OWL_FACTOR_HW(CMU_SD2CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_DIV(pwm0_clk, "pwm0_clk", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM0CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 23, 0),
OWL_DIVIDER_HW(CMU_PWM0CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(pwm1_clk, "pwm1_clk", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM1CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 24, 0),
OWL_DIVIDER_HW(CMU_PWM1CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(pwm2_clk, "pwm2_clk", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM2CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 25, 0),
OWL_DIVIDER_HW(CMU_PWM2CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(pwm3_clk, "pwm3_clk", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM3CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 26, 0),
OWL_DIVIDER_HW(CMU_PWM3CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(pwm4_clk, "pwm4_clk", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM4CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 11, 0),
OWL_DIVIDER_HW(CMU_PWM4CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(pwm5_clk, "pwm5_clk", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM5CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 0, 0),
OWL_DIVIDER_HW(CMU_PWM5CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_PASS(de_clk, "de_clk", de_clk_mux_p,
OWL_MUX_HW(CMU_DECLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 8, 0),
0);
static OWL_COMP_FIXED_FACTOR(i2c0_clk, "i2c0_clk", "ethernet_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 14, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c1_clk, "i2c1_clk", "ethernet_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 15, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c2_clk, "i2c2_clk", "ethernet_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 30, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c3_clk, "i2c3_clk", "ethernet_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 31, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(ethernet_clk, "ethernet_clk", "ethernet_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 22, 0),
1, 20, 0);
static OWL_COMP_DIV(uart0_clk, "uart0_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART0CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 6, 0),
OWL_DIVIDER_HW(CMU_UART0CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart1_clk, "uart1_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART1CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 7, 0),
OWL_DIVIDER_HW(CMU_UART1CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart2_clk, "uart2_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART2CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 8, 0),
OWL_DIVIDER_HW(CMU_UART2CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart3_clk, "uart3_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART3CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 19, 0),
OWL_DIVIDER_HW(CMU_UART3CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart4_clk, "uart4_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART4CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 20, 0),
OWL_DIVIDER_HW(CMU_UART4CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart5_clk, "uart5_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART5CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 21, 0),
OWL_DIVIDER_HW(CMU_UART5CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart6_clk, "uart6_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART6CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 18, 0),
OWL_DIVIDER_HW(CMU_UART6CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(i2srx_clk, "i2srx_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 21, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 20, 4, 0, i2s_div_table),
0);
static OWL_COMP_DIV(i2stx_clk, "i2stx_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 20, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 16, 4, 0, i2s_div_table),
0);
static OWL_COMP_DIV(hdmia_clk, "hdmia_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 22, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 24, 4, 0, i2s_div_table),
0);
static OWL_COMP_DIV(spdif_clk, "spdif_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 23, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 28, 4, 0, i2s_div_table),
0);
static OWL_COMP_DIV(nand_clk, "nand_clk", nand_clk_mux_p,
OWL_MUX_HW(CMU_NANDCCLK, 8, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 4, 0),
OWL_DIVIDER_HW(CMU_NANDCCLK, 0, 3, 0, nand_div_table),
CLK_SET_RATE_PARENT);
static OWL_COMP_DIV(ecc_clk, "ecc_clk", nand_clk_mux_p,
OWL_MUX_HW(CMU_NANDCCLK, 8, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 4, 0),
OWL_DIVIDER_HW(CMU_NANDCCLK, 4, 3, 0, nand_div_table),
CLK_SET_RATE_PARENT);
static struct owl_clk_common *s500_clks[] = {
&ethernet_pll_clk.common,
&core_pll_clk.common,
&ddr_pll_clk.common,
&dev_pll_clk.common,
&nand_pll_clk.common,
&audio_pll_clk.common,
&display_pll_clk.common,
&dev_clk.common,
&timer_clk.common,
&i2c0_clk.common,
&i2c1_clk.common,
&i2c2_clk.common,
&i2c3_clk.common,
&uart0_clk.common,
&uart1_clk.common,
&uart2_clk.common,
&uart3_clk.common,
&uart4_clk.common,
&uart5_clk.common,
&uart6_clk.common,
&pwm0_clk.common,
&pwm1_clk.common,
&pwm2_clk.common,
&pwm3_clk.common,
&pwm4_clk.common,
&pwm5_clk.common,
&sensor0_clk.common,
&sensor1_clk.common,
&sd0_clk.common,
&sd1_clk.common,
&sd2_clk.common,
&bisp_clk.common,
&ahb_clk.common,
&ahbprediv_clk.common,
&h_clk.common,
&spi0_clk.common,
&spi1_clk.common,
&spi2_clk.common,
&spi3_clk.common,
&rmii_ref_clk.common,
&de_clk.common,
&de1_clk.common,
&de2_clk.common,
&i2srx_clk.common,
&i2stx_clk.common,
&hdmia_clk.common,
&hdmi_clk.common,
&vce_clk.common,
&vde_clk.common,
&spdif_clk.common,
&nand_clk.common,
&ecc_clk.common,
&apb_clk.common,
&dmac_clk.common,
&gpio_clk.common,
&nic_clk.common,
&ethernet_clk.common,
};
static struct clk_hw_onecell_data s500_hw_clks = {
.hws = {
[CLK_ETHERNET_PLL] = &ethernet_pll_clk.common.hw,
[CLK_CORE_PLL] = &core_pll_clk.common.hw,
[CLK_DDR_PLL] = &ddr_pll_clk.common.hw,
[CLK_NAND_PLL] = &nand_pll_clk.common.hw,
[CLK_DISPLAY_PLL] = &display_pll_clk.common.hw,
[CLK_DEV_PLL] = &dev_pll_clk.common.hw,
[CLK_AUDIO_PLL] = &audio_pll_clk.common.hw,
[CLK_TIMER] = &timer_clk.common.hw,
[CLK_DEV] = &dev_clk.common.hw,
[CLK_DE] = &de_clk.common.hw,
[CLK_DE1] = &de1_clk.common.hw,
[CLK_DE2] = &de2_clk.common.hw,
[CLK_I2C0] = &i2c0_clk.common.hw,
[CLK_I2C1] = &i2c1_clk.common.hw,
[CLK_I2C2] = &i2c2_clk.common.hw,
[CLK_I2C3] = &i2c3_clk.common.hw,
[CLK_I2SRX] = &i2srx_clk.common.hw,
[CLK_I2STX] = &i2stx_clk.common.hw,
[CLK_UART0] = &uart0_clk.common.hw,
[CLK_UART1] = &uart1_clk.common.hw,
[CLK_UART2] = &uart2_clk.common.hw,
[CLK_UART3] = &uart3_clk.common.hw,
[CLK_UART4] = &uart4_clk.common.hw,
[CLK_UART5] = &uart5_clk.common.hw,
[CLK_UART6] = &uart6_clk.common.hw,
[CLK_PWM0] = &pwm0_clk.common.hw,
[CLK_PWM1] = &pwm1_clk.common.hw,
[CLK_PWM2] = &pwm2_clk.common.hw,
[CLK_PWM3] = &pwm3_clk.common.hw,
[CLK_PWM4] = &pwm4_clk.common.hw,
[CLK_PWM5] = &pwm5_clk.common.hw,
[CLK_SENSOR0] = &sensor0_clk.common.hw,
[CLK_SENSOR1] = &sensor1_clk.common.hw,
[CLK_SD0] = &sd0_clk.common.hw,
[CLK_SD1] = &sd1_clk.common.hw,
[CLK_SD2] = &sd2_clk.common.hw,
[CLK_BISP] = &bisp_clk.common.hw,
[CLK_SPI0] = &spi0_clk.common.hw,
[CLK_SPI1] = &spi1_clk.common.hw,
[CLK_SPI2] = &spi2_clk.common.hw,
[CLK_SPI3] = &spi3_clk.common.hw,
[CLK_AHB] = &ahb_clk.common.hw,
[CLK_H] = &h_clk.common.hw,
[CLK_AHBPREDIV] = &ahbprediv_clk.common.hw,
[CLK_RMII_REF] = &rmii_ref_clk.common.hw,
[CLK_HDMI_AUDIO] = &hdmia_clk.common.hw,
[CLK_HDMI] = &hdmi_clk.common.hw,
[CLK_VDE] = &vde_clk.common.hw,
[CLK_VCE] = &vce_clk.common.hw,
[CLK_SPDIF] = &spdif_clk.common.hw,
[CLK_NAND] = &nand_clk.common.hw,
[CLK_ECC] = &ecc_clk.common.hw,
[CLK_APB] = &apb_clk.common.hw,
[CLK_DMAC] = &dmac_clk.common.hw,
[CLK_GPIO] = &gpio_clk.common.hw,
[CLK_NIC] = &nic_clk.common.hw,
[CLK_ETHERNET] = &ethernet_clk.common.hw,
},
.num = CLK_NR_CLKS,
};
static const struct owl_reset_map s500_resets[] = {
[RESET_DMAC] = { CMU_DEVRST0, BIT(0) },
[RESET_NORIF] = { CMU_DEVRST0, BIT(1) },
[RESET_DDR] = { CMU_DEVRST0, BIT(2) },
[RESET_NANDC] = { CMU_DEVRST0, BIT(3) },
[RESET_SD0] = { CMU_DEVRST0, BIT(4) },
[RESET_SD1] = { CMU_DEVRST0, BIT(5) },
[RESET_PCM1] = { CMU_DEVRST0, BIT(6) },
[RESET_DE] = { CMU_DEVRST0, BIT(7) },
[RESET_LCD] = { CMU_DEVRST0, BIT(8) },
[RESET_SD2] = { CMU_DEVRST0, BIT(9) },
[RESET_DSI] = { CMU_DEVRST0, BIT(10) },
[RESET_CSI] = { CMU_DEVRST0, BIT(11) },
[RESET_BISP] = { CMU_DEVRST0, BIT(12) },
[RESET_KEY] = { CMU_DEVRST0, BIT(14) },
[RESET_GPIO] = { CMU_DEVRST0, BIT(15) },
[RESET_AUDIO] = { CMU_DEVRST0, BIT(17) },
[RESET_PCM0] = { CMU_DEVRST0, BIT(18) },
[RESET_VDE] = { CMU_DEVRST0, BIT(19) },
[RESET_VCE] = { CMU_DEVRST0, BIT(20) },
[RESET_GPU3D] = { CMU_DEVRST0, BIT(22) },
[RESET_NIC301] = { CMU_DEVRST0, BIT(23) },
[RESET_LENS] = { CMU_DEVRST0, BIT(26) },
[RESET_PERIPHRESET] = { CMU_DEVRST0, BIT(27) },
[RESET_USB2_0] = { CMU_DEVRST1, BIT(0) },
[RESET_TVOUT] = { CMU_DEVRST1, BIT(1) },
[RESET_HDMI] = { CMU_DEVRST1, BIT(2) },
[RESET_HDCP2TX] = { CMU_DEVRST1, BIT(3) },
[RESET_UART6] = { CMU_DEVRST1, BIT(4) },
[RESET_UART0] = { CMU_DEVRST1, BIT(5) },
[RESET_UART1] = { CMU_DEVRST1, BIT(6) },
[RESET_UART2] = { CMU_DEVRST1, BIT(7) },
[RESET_SPI0] = { CMU_DEVRST1, BIT(8) },
[RESET_SPI1] = { CMU_DEVRST1, BIT(9) },
[RESET_SPI2] = { CMU_DEVRST1, BIT(10) },
[RESET_SPI3] = { CMU_DEVRST1, BIT(11) },
[RESET_I2C0] = { CMU_DEVRST1, BIT(12) },
[RESET_I2C1] = { CMU_DEVRST1, BIT(13) },
[RESET_USB3] = { CMU_DEVRST1, BIT(14) },
[RESET_UART3] = { CMU_DEVRST1, BIT(15) },
[RESET_UART4] = { CMU_DEVRST1, BIT(16) },
[RESET_UART5] = { CMU_DEVRST1, BIT(17) },
[RESET_I2C2] = { CMU_DEVRST1, BIT(18) },
[RESET_I2C3] = { CMU_DEVRST1, BIT(19) },
[RESET_ETHERNET] = { CMU_DEVRST1, BIT(20) },
[RESET_CHIPID] = { CMU_DEVRST1, BIT(21) },
[RESET_USB2_1] = { CMU_DEVRST1, BIT(22) },
[RESET_WD0RESET] = { CMU_DEVRST1, BIT(24) },
[RESET_WD1RESET] = { CMU_DEVRST1, BIT(25) },
[RESET_WD2RESET] = { CMU_DEVRST1, BIT(26) },
[RESET_WD3RESET] = { CMU_DEVRST1, BIT(27) },
[RESET_DBG0RESET] = { CMU_DEVRST1, BIT(28) },
[RESET_DBG1RESET] = { CMU_DEVRST1, BIT(29) },
[RESET_DBG2RESET] = { CMU_DEVRST1, BIT(30) },
[RESET_DBG3RESET] = { CMU_DEVRST1, BIT(31) },
};
static struct owl_clk_desc s500_clk_desc = {
.clks = s500_clks,
.num_clks = ARRAY_SIZE(s500_clks),
.hw_clks = &s500_hw_clks,
.resets = s500_resets,
.num_resets = ARRAY_SIZE(s500_resets),
};
static int s500_clk_probe(struct platform_device *pdev)
{
struct owl_clk_desc *desc;
struct owl_reset *reset;
int ret;
desc = &s500_clk_desc;
owl_clk_regmap_init(pdev, desc);
reset = devm_kzalloc(&pdev->dev, sizeof(*reset), GFP_KERNEL);
if (!reset)
return -ENOMEM;
reset->rcdev.of_node = pdev->dev.of_node;
reset->rcdev.ops = &owl_reset_ops;
reset->rcdev.nr_resets = desc->num_resets;
reset->reset_map = desc->resets;
reset->regmap = desc->regmap;
ret = devm_reset_controller_register(&pdev->dev, &reset->rcdev);
if (ret)
dev_err(&pdev->dev, "Failed to register reset controller\n");
return owl_clk_probe(&pdev->dev, desc->hw_clks);
}
static const struct of_device_id s500_clk_of_match[] = {
{ .compatible = "actions,s500-cmu", },
{ /* sentinel */ }
};
static struct platform_driver s500_clk_driver = {
.probe = s500_clk_probe,
.driver = {
.name = "s500-cmu",
.of_match_table = s500_clk_of_match,
},
};
static int __init s500_clk_init(void)
{
return platform_driver_register(&s500_clk_driver);
}
core_initcall(s500_clk_init);
+660
View File
@@ -0,0 +1,660 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Actions Semi S700 clock driver
*
* Copyright (c) 2014 Actions Semi Inc.
* Author: David Liu <liuwei@actions-semi.com>
*
* Author: Pathiban Nallathambi <pn@denx.de>
* Author: Saravanan Sekar <sravanhome@gmail.com>
*/
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include "owl-common.h"
#include "owl-composite.h"
#include "owl-divider.h"
#include "owl-factor.h"
#include "owl-fixed-factor.h"
#include "owl-gate.h"
#include "owl-mux.h"
#include "owl-pll.h"
#include "owl-reset.h"
#include <dt-bindings/clock/actions,s700-cmu.h>
#include <dt-bindings/reset/actions,s700-reset.h>
#define CMU_COREPLL (0x0000)
#define CMU_DEVPLL (0x0004)
#define CMU_DDRPLL (0x0008)
#define CMU_NANDPLL (0x000C)
#define CMU_DISPLAYPLL (0x0010)
#define CMU_AUDIOPLL (0x0014)
#define CMU_TVOUTPLL (0x0018)
#define CMU_BUSCLK (0x001C)
#define CMU_SENSORCLK (0x0020)
#define CMU_LCDCLK (0x0024)
#define CMU_DSIPLLCLK (0x0028)
#define CMU_CSICLK (0x002C)
#define CMU_DECLK (0x0030)
#define CMU_SICLK (0x0034)
#define CMU_BUSCLK1 (0x0038)
#define CMU_HDECLK (0x003C)
#define CMU_VDECLK (0x0040)
#define CMU_VCECLK (0x0044)
#define CMU_NANDCCLK (0x004C)
#define CMU_SD0CLK (0x0050)
#define CMU_SD1CLK (0x0054)
#define CMU_SD2CLK (0x0058)
#define CMU_UART0CLK (0x005C)
#define CMU_UART1CLK (0x0060)
#define CMU_UART2CLK (0x0064)
#define CMU_UART3CLK (0x0068)
#define CMU_UART4CLK (0x006C)
#define CMU_UART5CLK (0x0070)
#define CMU_UART6CLK (0x0074)
#define CMU_PWM0CLK (0x0078)
#define CMU_PWM1CLK (0x007C)
#define CMU_PWM2CLK (0x0080)
#define CMU_PWM3CLK (0x0084)
#define CMU_PWM4CLK (0x0088)
#define CMU_PWM5CLK (0x008C)
#define CMU_GPU3DCLK (0x0090)
#define CMU_CORECTL (0x009C)
#define CMU_DEVCLKEN0 (0x00A0)
#define CMU_DEVCLKEN1 (0x00A4)
#define CMU_DEVRST0 (0x00A8)
#define CMU_DEVRST1 (0x00AC)
#define CMU_USBPLL (0x00B0)
#define CMU_ETHERNETPLL (0x00B4)
#define CMU_CVBSPLL (0x00B8)
#define CMU_SSTSCLK (0x00C0)
static struct clk_pll_table clk_audio_pll_table[] = {
{0, 45158400}, {1, 49152000},
{ /* sentinel */ }
};
static struct clk_pll_table clk_cvbs_pll_table[] = {
{27, 29 * 12000000}, {28, 30 * 12000000}, {29, 31 * 12000000},
{30, 32 * 12000000}, {31, 33 * 12000000}, {32, 34 * 12000000},
{33, 35 * 12000000}, {34, 36 * 12000000}, {35, 37 * 12000000},
{36, 38 * 12000000}, {37, 39 * 12000000}, {38, 40 * 12000000},
{39, 41 * 12000000}, {40, 42 * 12000000}, {41, 43 * 12000000},
{42, 44 * 12000000}, {43, 45 * 12000000},
{ /* sentinel */ }
};
/* pll clocks */
static OWL_PLL_NO_PARENT(clk_core_pll, "core_pll", CMU_COREPLL, 12000000, 9, 0, 8, 4, 174, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_dev_pll, "dev_pll", CMU_DEVPLL, 6000000, 8, 0, 8, 8, 126, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_ddr_pll, "ddr_pll", CMU_DDRPLL, 6000000, 8, 0, 8, 2, 180, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_nand_pll, "nand_pll", CMU_NANDPLL, 6000000, 8, 0, 8, 2, 86, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_display_pll, "display_pll", CMU_DISPLAYPLL, 6000000, 8, 0, 8, 2, 140, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_cvbs_pll, "cvbs_pll", CMU_CVBSPLL, 0, 8, 0, 8, 27, 43, clk_cvbs_pll_table, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_audio_pll, "audio_pll", CMU_AUDIOPLL, 0, 4, 0, 1, 0, 0, clk_audio_pll_table, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(clk_ethernet_pll, "ethernet_pll", CMU_ETHERNETPLL, 500000000, 0, 0, 0, 0, 0, NULL, CLK_IGNORE_UNUSED);
static const char *cpu_clk_mux_p[] = {"losc", "hosc", "core_pll", "noc1_clk_div"};
static const char *dev_clk_p[] = { "hosc", "dev_pll"};
static const char *noc_clk_mux_p[] = { "dev_clk", "display_pll", "nand_pll", "ddr_pll", "cvbs_pll"};
static const char *csi_clk_mux_p[] = { "display_pll", "dev_clk"};
static const char *de_clk_mux_p[] = { "display_pll", "dev_clk"};
static const char *hde_clk_mux_p[] = { "dev_clk", "display_pll", "nand_pll", "ddr_pll"};
static const char *nand_clk_mux_p[] = { "nand_pll", "display_pll", "dev_clk", "ddr_pll"};
static const char *sd_clk_mux_p[] = { "dev_clk", "nand_pll", };
static const char *uart_clk_mux_p[] = { "hosc", "dev_pll"};
static const char *pwm_clk_mux_p[] = { "losc", "hosc"};
static const char *gpu_clk_mux_p[] = { "dev_clk", "display_pll", "nand_pll", "ddr_clk", "cvbs_pll"};
static const char *lcd_clk_mux_p[] = { "display_pll", "dev_clk" };
static const char *i2s_clk_mux_p[] = { "audio_pll" };
static const char *sensor_clk_mux_p[] = { "hosc", "si"};
/* mux clocks */
static OWL_MUX(clk_cpu, "cpu_clk", cpu_clk_mux_p, CMU_BUSCLK, 0, 2, CLK_SET_RATE_PARENT);
static OWL_MUX(clk_dev, "dev_clk", dev_clk_p, CMU_DEVPLL, 12, 1, CLK_SET_RATE_PARENT);
static OWL_MUX(clk_noc0_clk_mux, "noc0_clk_mux", noc_clk_mux_p, CMU_BUSCLK, 4, 3, CLK_SET_RATE_PARENT);
static OWL_MUX(clk_noc1_clk_mux, "noc1_clk_mux", noc_clk_mux_p, CMU_BUSCLK1, 4, 3, CLK_SET_RATE_PARENT);
static OWL_MUX(clk_hp_clk_mux, "hp_clk_mux", noc_clk_mux_p, CMU_BUSCLK1, 8, 3, CLK_SET_RATE_PARENT);
static struct clk_factor_table sd_factor_table[] = {
/* bit0 ~ 4 */
{0, 1, 1}, {1, 1, 2}, {2, 1, 3}, {3, 1, 4},
{4, 1, 5}, {5, 1, 6}, {6, 1, 7}, {7, 1, 8},
{8, 1, 9}, {9, 1, 10}, {10, 1, 11}, {11, 1, 12},
{12, 1, 13}, {13, 1, 14}, {14, 1, 15}, {15, 1, 16},
{16, 1, 17}, {17, 1, 18}, {18, 1, 19}, {19, 1, 20},
{20, 1, 21}, {21, 1, 22}, {22, 1, 23}, {23, 1, 24},
{24, 1, 25}, {25, 1, 26},
/* bit8: /128 */
{256, 1, 1 * 128}, {257, 1, 2 * 128}, {258, 1, 3 * 128}, {259, 1, 4 * 128},
{260, 1, 5 * 128}, {261, 1, 6 * 128}, {262, 1, 7 * 128}, {263, 1, 8 * 128},
{264, 1, 9 * 128}, {265, 1, 10 * 128}, {266, 1, 11 * 128}, {267, 1, 12 * 128},
{268, 1, 13 * 128}, {269, 1, 14 * 128}, {270, 1, 15 * 128}, {271, 1, 16 * 128},
{272, 1, 17 * 128}, {273, 1, 18 * 128}, {274, 1, 19 * 128}, {275, 1, 20 * 128},
{276, 1, 21 * 128}, {277, 1, 22 * 128}, {278, 1, 23 * 128}, {279, 1, 24 * 128},
{280, 1, 25 * 128}, {281, 1, 26 * 128},
{ /* sentinel */ }
};
static struct clk_factor_table lcd_factor_table[] = {
/* bit0 ~ 3 */
{0, 1, 1}, {1, 1, 2}, {2, 1, 3}, {3, 1, 4},
{4, 1, 5}, {5, 1, 6}, {6, 1, 7}, {7, 1, 8},
{8, 1, 9}, {9, 1, 10}, {10, 1, 11}, {11, 1, 12},
/* bit8: /7 */
{256, 1, 1 * 7}, {257, 1, 2 * 7}, {258, 1, 3 * 7}, {259, 1, 4 * 7},
{260, 1, 5 * 7}, {261, 1, 6 * 7}, {262, 1, 7 * 7}, {263, 1, 8 * 7},
{264, 1, 9 * 7}, {265, 1, 10 * 7}, {266, 1, 11 * 7}, {267, 1, 12 * 7},
{ /* sentinel */ }
};
static struct clk_div_table hdmia_div_table[] = {
{0, 1}, {1, 2}, {2, 3}, {3, 4},
{4, 6}, {5, 8}, {6, 12}, {7, 16},
{8, 24},
{ /* sentinel */ }
};
static struct clk_div_table rmii_div_table[] = {
{0, 4}, {1, 10},
{ /* sentinel */ }
};
/* divider clocks */
static OWL_DIVIDER(clk_noc0, "noc0_clk", "noc0_clk_mux", CMU_BUSCLK, 16, 2, NULL, 0, 0);
static OWL_DIVIDER(clk_noc1, "noc1_clk", "noc1_clk_mux", CMU_BUSCLK1, 16, 2, NULL, 0, 0);
static OWL_DIVIDER(clk_noc1_clk_div, "noc1_clk_div", "noc1_clk", CMU_BUSCLK1, 20, 1, NULL, 0, 0);
static OWL_DIVIDER(clk_hp_clk_div, "hp_clk_div", "hp_clk_mux", CMU_BUSCLK1, 12, 2, NULL, 0, 0);
static OWL_DIVIDER(clk_ahb, "ahb_clk", "hp_clk_div", CMU_BUSCLK1, 2, 2, NULL, 0, 0);
static OWL_DIVIDER(clk_apb, "apb_clk", "ahb_clk", CMU_BUSCLK1, 14, 2, NULL, 0, 0);
static OWL_DIVIDER(clk_sensor0, "sensor0", "sensor_src", CMU_SENSORCLK, 0, 4, NULL, 0, 0);
static OWL_DIVIDER(clk_sensor1, "sensor1", "sensor_src", CMU_SENSORCLK, 8, 4, NULL, 0, 0);
static OWL_DIVIDER(clk_rmii_ref, "rmii_ref", "ethernet_pll", CMU_ETHERNETPLL, 2, 1, rmii_div_table, 0, 0);
static struct clk_factor_table de_factor_table[] = {
{0, 1, 1}, {1, 2, 3}, {2, 1, 2}, {3, 2, 5},
{4, 1, 3}, {5, 1, 4}, {6, 1, 6}, {7, 1, 8},
{8, 1, 12},
{ /* sentinel */ }
};
static struct clk_factor_table hde_factor_table[] = {
{0, 1, 1}, {1, 2, 3}, {2, 1, 2}, {3, 2, 5},
{4, 1, 3}, {5, 1, 4}, {6, 1, 6}, {7, 1, 8},
{ /* sentinel */ }
};
/* gate clocks */
static OWL_GATE(clk_gpio, "gpio", "apb_clk", CMU_DEVCLKEN1, 25, 0, 0);
static OWL_GATE(clk_dmac, "dmac", "hp_clk_div", CMU_DEVCLKEN0, 17, 0, 0);
static OWL_GATE(clk_timer, "timer", "hosc", CMU_DEVCLKEN1, 22, 0, 0);
static OWL_GATE_NO_PARENT(clk_dsi, "dsi_clk", CMU_DEVCLKEN0, 2, 0, 0);
static OWL_GATE_NO_PARENT(clk_tvout, "tvout_clk", CMU_DEVCLKEN0, 3, 0, 0);
static OWL_GATE_NO_PARENT(clk_hdmi_dev, "hdmi_dev", CMU_DEVCLKEN0, 5, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb3_480mpll0, "usb3_480mpll0", CMU_USBPLL, 3, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb3_480mphy0, "usb3_480mphy0", CMU_USBPLL, 2, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb3_5gphy, "usb3_5gphy", CMU_USBPLL, 1, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb3_cce, "usb3_cce", CMU_DEVCLKEN0, 25, 0, 0);
static OWL_GATE(clk_i2c0, "i2c0", "hosc", CMU_DEVCLKEN1, 0, 0, 0);
static OWL_GATE(clk_i2c1, "i2c1", "hosc", CMU_DEVCLKEN1, 1, 0, 0);
static OWL_GATE(clk_i2c2, "i2c2", "hosc", CMU_DEVCLKEN1, 2, 0, 0);
static OWL_GATE(clk_i2c3, "i2c3", "hosc", CMU_DEVCLKEN1, 3, 0, 0);
static OWL_GATE(clk_spi0, "spi0", "ahb_clk", CMU_DEVCLKEN1, 4, 0, 0);
static OWL_GATE(clk_spi1, "spi1", "ahb_clk", CMU_DEVCLKEN1, 5, 0, 0);
static OWL_GATE(clk_spi2, "spi2", "ahb_clk", CMU_DEVCLKEN1, 6, 0, 0);
static OWL_GATE(clk_spi3, "spi3", "ahb_clk", CMU_DEVCLKEN1, 7, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb2h0_pllen, "usbh0_pllen", CMU_USBPLL, 12, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb2h0_phy, "usbh0_phy", CMU_USBPLL, 10, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb2h0_cce, "usbh0_cce", CMU_DEVCLKEN0, 26, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb2h1_pllen, "usbh1_pllen", CMU_USBPLL, 13, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb2h1_phy, "usbh1_phy", CMU_USBPLL, 11, 0, 0);
static OWL_GATE_NO_PARENT(clk_usb2h1_cce, "usbh1_cce", CMU_DEVCLKEN0, 27, 0, 0);
static OWL_GATE_NO_PARENT(clk_irc_switch, "irc_switch", CMU_DEVCLKEN1, 15, 0, 0);
/* composite clocks */
static OWL_COMP_DIV(clk_csi, "csi", csi_clk_mux_p,
OWL_MUX_HW(CMU_CSICLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 13, 0),
OWL_DIVIDER_HW(CMU_CSICLK, 0, 4, 0, NULL),
0);
static OWL_COMP_DIV(clk_si, "si", csi_clk_mux_p,
OWL_MUX_HW(CMU_SICLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
OWL_DIVIDER_HW(CMU_SICLK, 0, 4, 0, NULL),
0);
static OWL_COMP_FACTOR(clk_de, "de", de_clk_mux_p,
OWL_MUX_HW(CMU_DECLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 0, 0),
OWL_FACTOR_HW(CMU_DECLK, 0, 3, 0, de_factor_table),
0);
static OWL_COMP_FACTOR(clk_hde, "hde", hde_clk_mux_p,
OWL_MUX_HW(CMU_HDECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 9, 0),
OWL_FACTOR_HW(CMU_HDECLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_FACTOR(clk_vde, "vde", hde_clk_mux_p,
OWL_MUX_HW(CMU_VDECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 10, 0),
OWL_FACTOR_HW(CMU_VDECLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_FACTOR(clk_vce, "vce", hde_clk_mux_p,
OWL_MUX_HW(CMU_VCECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 11, 0),
OWL_FACTOR_HW(CMU_VCECLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_DIV(clk_nand, "nand", nand_clk_mux_p,
OWL_MUX_HW(CMU_NANDCCLK, 8, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 21, 0),
OWL_DIVIDER_HW(CMU_NANDCCLK, 0, 3, 0, NULL),
CLK_SET_RATE_PARENT);
static OWL_COMP_FACTOR(clk_sd0, "sd0", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD0CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 22, 0),
OWL_FACTOR_HW(CMU_SD0CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(clk_sd1, "sd1", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD1CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 23, 0),
OWL_FACTOR_HW(CMU_SD1CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(clk_sd2, "sd2", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD2CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 24, 0),
OWL_FACTOR_HW(CMU_SD2CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_DIV(clk_uart0, "uart0", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART0CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 8, 0),
OWL_DIVIDER_HW(CMU_UART0CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_uart1, "uart1", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART1CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 9, 0),
OWL_DIVIDER_HW(CMU_UART1CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_uart2, "uart2", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART2CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 10, 0),
OWL_DIVIDER_HW(CMU_UART2CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_uart3, "uart3", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART3CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 11, 0),
OWL_DIVIDER_HW(CMU_UART3CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_uart4, "uart4", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART4CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 12, 0),
OWL_DIVIDER_HW(CMU_UART4CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_uart5, "uart5", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART5CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 13, 0),
OWL_DIVIDER_HW(CMU_UART5CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_uart6, "uart6", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART6CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 14, 0),
OWL_DIVIDER_HW(CMU_UART6CLK, 0, 9, CLK_DIVIDER_ROUND_CLOSEST, NULL),
0);
static OWL_COMP_DIV(clk_pwm0, "pwm0", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM0CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 16, 0),
OWL_DIVIDER_HW(CMU_PWM0CLK, 0, 10, 0, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(clk_pwm1, "pwm1", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM1CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 17, 0),
OWL_DIVIDER_HW(CMU_PWM1CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(clk_pwm2, "pwm2", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM2CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 18, 0),
OWL_DIVIDER_HW(CMU_PWM2CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(clk_pwm3, "pwm3", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM3CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 19, 0),
OWL_DIVIDER_HW(CMU_PWM3CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(clk_pwm4, "pwm4", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM4CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 20, 0),
OWL_DIVIDER_HW(CMU_PWM4CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_DIV(clk_pwm5, "pwm5", pwm_clk_mux_p,
OWL_MUX_HW(CMU_PWM5CLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 21, 0),
OWL_DIVIDER_HW(CMU_PWM5CLK, 0, 10, 0, NULL),
0);
static OWL_COMP_FACTOR(clk_gpu3d, "gpu3d", gpu_clk_mux_p,
OWL_MUX_HW(CMU_GPU3DCLK, 4, 3),
OWL_GATE_HW(CMU_DEVCLKEN0, 8, 0),
OWL_FACTOR_HW(CMU_GPU3DCLK, 0, 3, 0, hde_factor_table),
0);
static OWL_COMP_FACTOR(clk_lcd, "lcd", lcd_clk_mux_p,
OWL_MUX_HW(CMU_LCDCLK, 12, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 1, 0),
OWL_FACTOR_HW(CMU_LCDCLK, 0, 9, 0, lcd_factor_table),
0);
static OWL_COMP_DIV(clk_hdmi_audio, "hdmia", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1), /*CMU_AUDIOPLL 24,1 unused*/
OWL_GATE_HW(CMU_DEVCLKEN1, 28, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 24, 4, 0, hdmia_div_table),
0);
static OWL_COMP_DIV(clk_i2srx, "i2srx", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 27, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 20, 4, 0, hdmia_div_table),
0);
static OWL_COMP_DIV(clk_i2stx, "i2stx", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 26, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 16, 4, 0, hdmia_div_table),
0);
/* for bluetooth pcm communication */
static OWL_COMP_FIXED_FACTOR(clk_pcm1, "pcm1", "audio_pll",
OWL_GATE_HW(CMU_DEVCLKEN1, 31, 0),
1, 2, 0);
static OWL_COMP_DIV(clk_sensor_src, "sensor_src", sensor_clk_mux_p,
OWL_MUX_HW(CMU_SENSORCLK, 4, 1),
{0},
OWL_DIVIDER_HW(CMU_SENSORCLK, 5, 2, 0, NULL),
0);
static OWL_COMP_FIXED_FACTOR(clk_ethernet, "ethernet", "ethernet_pll",
OWL_GATE_HW(CMU_DEVCLKEN1, 23, 0),
1, 20, 0);
static OWL_COMP_DIV_FIXED(clk_thermal_sensor, "thermal_sensor", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN0, 31, 0),
OWL_DIVIDER_HW(CMU_SSTSCLK, 20, 10, 0, NULL),
0);
static struct owl_clk_common *s700_clks[] = {
&clk_core_pll.common,
&clk_dev_pll.common,
&clk_ddr_pll.common,
&clk_nand_pll.common,
&clk_display_pll.common,
&clk_cvbs_pll .common,
&clk_audio_pll.common,
&clk_ethernet_pll.common,
&clk_cpu.common,
&clk_dev.common,
&clk_ahb.common,
&clk_apb.common,
&clk_dmac.common,
&clk_noc0_clk_mux.common,
&clk_noc1_clk_mux.common,
&clk_hp_clk_mux.common,
&clk_hp_clk_div.common,
&clk_noc1_clk_div.common,
&clk_noc0.common,
&clk_noc1.common,
&clk_sensor_src.common,
&clk_gpio.common,
&clk_timer.common,
&clk_dsi.common,
&clk_csi.common,
&clk_si.common,
&clk_de.common,
&clk_hde.common,
&clk_vde.common,
&clk_vce.common,
&clk_nand.common,
&clk_sd0.common,
&clk_sd1.common,
&clk_sd2.common,
&clk_uart0.common,
&clk_uart1.common,
&clk_uart2.common,
&clk_uart3.common,
&clk_uart4.common,
&clk_uart5.common,
&clk_uart6.common,
&clk_pwm0.common,
&clk_pwm1.common,
&clk_pwm2.common,
&clk_pwm3.common,
&clk_pwm4.common,
&clk_pwm5.common,
&clk_gpu3d.common,
&clk_i2c0.common,
&clk_i2c1.common,
&clk_i2c2.common,
&clk_i2c3.common,
&clk_spi0.common,
&clk_spi1.common,
&clk_spi2.common,
&clk_spi3.common,
&clk_usb3_480mpll0.common,
&clk_usb3_480mphy0.common,
&clk_usb3_5gphy.common,
&clk_usb3_cce.common,
&clk_lcd.common,
&clk_hdmi_audio.common,
&clk_i2srx.common,
&clk_i2stx.common,
&clk_sensor0.common,
&clk_sensor1.common,
&clk_hdmi_dev.common,
&clk_ethernet.common,
&clk_rmii_ref.common,
&clk_usb2h0_pllen.common,
&clk_usb2h0_phy.common,
&clk_usb2h0_cce.common,
&clk_usb2h1_pllen.common,
&clk_usb2h1_phy.common,
&clk_usb2h1_cce.common,
&clk_tvout.common,
&clk_thermal_sensor.common,
&clk_irc_switch.common,
&clk_pcm1.common,
};
static struct clk_hw_onecell_data s700_hw_clks = {
.hws = {
[CLK_CORE_PLL] = &clk_core_pll.common.hw,
[CLK_DEV_PLL] = &clk_dev_pll.common.hw,
[CLK_DDR_PLL] = &clk_ddr_pll.common.hw,
[CLK_NAND_PLL] = &clk_nand_pll.common.hw,
[CLK_DISPLAY_PLL] = &clk_display_pll.common.hw,
[CLK_CVBS_PLL] = &clk_cvbs_pll .common.hw,
[CLK_AUDIO_PLL] = &clk_audio_pll.common.hw,
[CLK_ETHERNET_PLL] = &clk_ethernet_pll.common.hw,
[CLK_CPU] = &clk_cpu.common.hw,
[CLK_DEV] = &clk_dev.common.hw,
[CLK_AHB] = &clk_ahb.common.hw,
[CLK_APB] = &clk_apb.common.hw,
[CLK_DMAC] = &clk_dmac.common.hw,
[CLK_NOC0_CLK_MUX] = &clk_noc0_clk_mux.common.hw,
[CLK_NOC1_CLK_MUX] = &clk_noc1_clk_mux.common.hw,
[CLK_HP_CLK_MUX] = &clk_hp_clk_mux.common.hw,
[CLK_HP_CLK_DIV] = &clk_hp_clk_div.common.hw,
[CLK_NOC1_CLK_DIV] = &clk_noc1_clk_div.common.hw,
[CLK_NOC0] = &clk_noc0.common.hw,
[CLK_NOC1] = &clk_noc1.common.hw,
[CLK_SENOR_SRC] = &clk_sensor_src.common.hw,
[CLK_GPIO] = &clk_gpio.common.hw,
[CLK_TIMER] = &clk_timer.common.hw,
[CLK_DSI] = &clk_dsi.common.hw,
[CLK_CSI] = &clk_csi.common.hw,
[CLK_SI] = &clk_si.common.hw,
[CLK_DE] = &clk_de.common.hw,
[CLK_HDE] = &clk_hde.common.hw,
[CLK_VDE] = &clk_vde.common.hw,
[CLK_VCE] = &clk_vce.common.hw,
[CLK_NAND] = &clk_nand.common.hw,
[CLK_SD0] = &clk_sd0.common.hw,
[CLK_SD1] = &clk_sd1.common.hw,
[CLK_SD2] = &clk_sd2.common.hw,
[CLK_UART0] = &clk_uart0.common.hw,
[CLK_UART1] = &clk_uart1.common.hw,
[CLK_UART2] = &clk_uart2.common.hw,
[CLK_UART3] = &clk_uart3.common.hw,
[CLK_UART4] = &clk_uart4.common.hw,
[CLK_UART5] = &clk_uart5.common.hw,
[CLK_UART6] = &clk_uart6.common.hw,
[CLK_PWM0] = &clk_pwm0.common.hw,
[CLK_PWM1] = &clk_pwm1.common.hw,
[CLK_PWM2] = &clk_pwm2.common.hw,
[CLK_PWM3] = &clk_pwm3.common.hw,
[CLK_PWM4] = &clk_pwm4.common.hw,
[CLK_PWM5] = &clk_pwm5.common.hw,
[CLK_GPU3D] = &clk_gpu3d.common.hw,
[CLK_I2C0] = &clk_i2c0.common.hw,
[CLK_I2C1] = &clk_i2c1.common.hw,
[CLK_I2C2] = &clk_i2c2.common.hw,
[CLK_I2C3] = &clk_i2c3.common.hw,
[CLK_SPI0] = &clk_spi0.common.hw,
[CLK_SPI1] = &clk_spi1.common.hw,
[CLK_SPI2] = &clk_spi2.common.hw,
[CLK_SPI3] = &clk_spi3.common.hw,
[CLK_USB3_480MPLL0] = &clk_usb3_480mpll0.common.hw,
[CLK_USB3_480MPHY0] = &clk_usb3_480mphy0.common.hw,
[CLK_USB3_5GPHY] = &clk_usb3_5gphy.common.hw,
[CLK_USB3_CCE] = &clk_usb3_cce.common.hw,
[CLK_LCD] = &clk_lcd.common.hw,
[CLK_HDMI_AUDIO] = &clk_hdmi_audio.common.hw,
[CLK_I2SRX] = &clk_i2srx.common.hw,
[CLK_I2STX] = &clk_i2stx.common.hw,
[CLK_SENSOR0] = &clk_sensor0.common.hw,
[CLK_SENSOR1] = &clk_sensor1.common.hw,
[CLK_HDMI_DEV] = &clk_hdmi_dev.common.hw,
[CLK_ETHERNET] = &clk_ethernet.common.hw,
[CLK_RMII_REF] = &clk_rmii_ref.common.hw,
[CLK_USB2H0_PLLEN] = &clk_usb2h0_pllen.common.hw,
[CLK_USB2H0_PHY] = &clk_usb2h0_phy.common.hw,
[CLK_USB2H0_CCE] = &clk_usb2h0_cce.common.hw,
[CLK_USB2H1_PLLEN] = &clk_usb2h1_pllen.common.hw,
[CLK_USB2H1_PHY] = &clk_usb2h1_phy.common.hw,
[CLK_USB2H1_CCE] = &clk_usb2h1_cce.common.hw,
[CLK_TVOUT] = &clk_tvout.common.hw,
[CLK_THERMAL_SENSOR] = &clk_thermal_sensor.common.hw,
[CLK_IRC_SWITCH] = &clk_irc_switch.common.hw,
[CLK_PCM1] = &clk_pcm1.common.hw,
},
.num = CLK_NR_CLKS,
};
static const struct owl_reset_map s700_resets[] = {
[RESET_DE] = { CMU_DEVRST0, BIT(0) },
[RESET_LCD0] = { CMU_DEVRST0, BIT(1) },
[RESET_DSI] = { CMU_DEVRST0, BIT(2) },
[RESET_CSI] = { CMU_DEVRST0, BIT(13) },
[RESET_SI] = { CMU_DEVRST0, BIT(14) },
[RESET_I2C0] = { CMU_DEVRST1, BIT(0) },
[RESET_I2C1] = { CMU_DEVRST1, BIT(1) },
[RESET_I2C2] = { CMU_DEVRST1, BIT(2) },
[RESET_I2C3] = { CMU_DEVRST1, BIT(3) },
[RESET_SPI0] = { CMU_DEVRST1, BIT(4) },
[RESET_SPI1] = { CMU_DEVRST1, BIT(5) },
[RESET_SPI2] = { CMU_DEVRST1, BIT(6) },
[RESET_SPI3] = { CMU_DEVRST1, BIT(7) },
[RESET_UART0] = { CMU_DEVRST1, BIT(8) },
[RESET_UART1] = { CMU_DEVRST1, BIT(9) },
[RESET_UART2] = { CMU_DEVRST1, BIT(10) },
[RESET_UART3] = { CMU_DEVRST1, BIT(11) },
[RESET_UART4] = { CMU_DEVRST1, BIT(12) },
[RESET_UART5] = { CMU_DEVRST1, BIT(13) },
[RESET_UART6] = { CMU_DEVRST1, BIT(14) },
[RESET_KEY] = { CMU_DEVRST1, BIT(24) },
[RESET_GPIO] = { CMU_DEVRST1, BIT(25) },
[RESET_AUDIO] = { CMU_DEVRST1, BIT(29) },
};
static struct owl_clk_desc s700_clk_desc = {
.clks = s700_clks,
.num_clks = ARRAY_SIZE(s700_clks),
.hw_clks = &s700_hw_clks,
.resets = s700_resets,
.num_resets = ARRAY_SIZE(s700_resets),
};
static int s700_clk_probe(struct platform_device *pdev)
{
struct owl_clk_desc *desc;
struct owl_reset *reset;
int ret;
desc = &s700_clk_desc;
owl_clk_regmap_init(pdev, desc);
/*
* FIXME: Reset controller registration should be moved to
* common code, once all SoCs of Owl family supports it.
*/
reset = devm_kzalloc(&pdev->dev, sizeof(*reset), GFP_KERNEL);
if (!reset)
return -ENOMEM;
reset->rcdev.of_node = pdev->dev.of_node;
reset->rcdev.ops = &owl_reset_ops;
reset->rcdev.nr_resets = desc->num_resets;
reset->reset_map = desc->resets;
reset->regmap = desc->regmap;
ret = devm_reset_controller_register(&pdev->dev, &reset->rcdev);
if (ret)
dev_err(&pdev->dev, "Failed to register reset controller\n");
return owl_clk_probe(&pdev->dev, desc->hw_clks);
}
static const struct of_device_id s700_clk_of_match[] = {
{ .compatible = "actions,s700-cmu", },
{ /* sentinel */ }
};
static struct platform_driver s700_clk_driver = {
.probe = s700_clk_probe,
.driver = {
.name = "s700-cmu",
.of_match_table = s700_clk_of_match
},
};
static int __init s700_clk_init(void)
{
return platform_driver_register(&s700_clk_driver);
}
core_initcall(s700_clk_init);
+803
View File
@@ -0,0 +1,803 @@
// SPDX-License-Identifier: GPL-2.0+
//
// OWL S900 SoC clock driver
//
// Copyright (c) 2014 Actions Semi Inc.
// Author: David Liu <liuwei@actions-semi.com>
//
// Copyright (c) 2018 Linaro Ltd.
// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
#include <linux/clk-provider.h>
#include <linux/platform_device.h>
#include "owl-common.h"
#include "owl-composite.h"
#include "owl-divider.h"
#include "owl-factor.h"
#include "owl-fixed-factor.h"
#include "owl-gate.h"
#include "owl-mux.h"
#include "owl-pll.h"
#include "owl-reset.h"
#include <dt-bindings/clock/actions,s900-cmu.h>
#include <dt-bindings/reset/actions,s900-reset.h>
#define CMU_COREPLL (0x0000)
#define CMU_DEVPLL (0x0004)
#define CMU_DDRPLL (0x0008)
#define CMU_NANDPLL (0x000C)
#define CMU_DISPLAYPLL (0x0010)
#define CMU_AUDIOPLL (0x0014)
#define CMU_TVOUTPLL (0x0018)
#define CMU_BUSCLK (0x001C)
#define CMU_SENSORCLK (0x0020)
#define CMU_LCDCLK (0x0024)
#define CMU_DSICLK (0x0028)
#define CMU_CSICLK (0x002C)
#define CMU_DECLK (0x0030)
#define CMU_BISPCLK (0x0034)
#define CMU_IMXCLK (0x0038)
#define CMU_HDECLK (0x003C)
#define CMU_VDECLK (0x0040)
#define CMU_VCECLK (0x0044)
#define CMU_NANDCCLK (0x004C)
#define CMU_SD0CLK (0x0050)
#define CMU_SD1CLK (0x0054)
#define CMU_SD2CLK (0x0058)
#define CMU_UART0CLK (0x005C)
#define CMU_UART1CLK (0x0060)
#define CMU_UART2CLK (0x0064)
#define CMU_PWM0CLK (0x0070)
#define CMU_PWM1CLK (0x0074)
#define CMU_PWM2CLK (0x0078)
#define CMU_PWM3CLK (0x007C)
#define CMU_USBPLL (0x0080)
#define CMU_ASSISTPLL (0x0084)
#define CMU_EDPCLK (0x0088)
#define CMU_GPU3DCLK (0x0090)
#define CMU_CORECTL (0x009C)
#define CMU_DEVCLKEN0 (0x00A0)
#define CMU_DEVCLKEN1 (0x00A4)
#define CMU_DEVRST0 (0x00A8)
#define CMU_DEVRST1 (0x00AC)
#define CMU_UART3CLK (0x00B0)
#define CMU_UART4CLK (0x00B4)
#define CMU_UART5CLK (0x00B8)
#define CMU_UART6CLK (0x00BC)
#define CMU_TLSCLK (0x00C0)
#define CMU_SD3CLK (0x00C4)
#define CMU_PWM4CLK (0x00C8)
#define CMU_PWM5CLK (0x00CC)
static struct clk_pll_table clk_audio_pll_table[] = {
{ 0, 45158400 }, { 1, 49152000 },
{ /* sentinel */ }
};
static struct clk_pll_table clk_edp_pll_table[] = {
{ 0, 810000000 }, { 1, 135000000 }, { 2, 270000000 },
{ /* sentinel */ }
};
/* pll clocks */
static OWL_PLL_NO_PARENT(core_pll_clk, "core_pll_clk", CMU_COREPLL, 24000000, 9, 0, 8, 5, 107, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(dev_pll_clk, "dev_pll_clk", CMU_DEVPLL, 6000000, 8, 0, 8, 20, 180, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(ddr_pll_clk, "ddr_pll_clk", CMU_DDRPLL, 24000000, 8, 0, 8, 5, 45, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(nand_pll_clk, "nand_pll_clk", CMU_NANDPLL, 6000000, 8, 0, 8, 4, 100, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(display_pll_clk, "display_pll_clk", CMU_DISPLAYPLL, 6000000, 8, 0, 8, 20, 180, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(assist_pll_clk, "assist_pll_clk", CMU_ASSISTPLL, 500000000, 0, 0, 0, 0, 0, NULL, CLK_IGNORE_UNUSED);
static OWL_PLL_NO_PARENT(audio_pll_clk, "audio_pll_clk", CMU_AUDIOPLL, 0, 4, 0, 1, 0, 0, clk_audio_pll_table, CLK_IGNORE_UNUSED);
static OWL_PLL(edp_pll_clk, "edp_pll_clk", "edp24M_clk", CMU_EDPCLK, 0, 9, 0, 2, 0, 0, clk_edp_pll_table, CLK_IGNORE_UNUSED);
static const char *cpu_clk_mux_p[] = { "losc", "hosc", "core_pll_clk", };
static const char *dev_clk_p[] = { "hosc", "dev_pll_clk", };
static const char *noc_clk_mux_p[] = { "dev_clk", "assist_pll_clk", };
static const char *dmm_clk_mux_p[] = { "dev_clk", "nand_pll_clk", "assist_pll_clk", "ddr_clk_src", };
static const char *bisp_clk_mux_p[] = { "assist_pll_clk", "dev_clk", };
static const char *csi_clk_mux_p[] = { "display_pll_clk", "dev_clk", };
static const char *de_clk_mux_p[] = { "assist_pll_clk", "dev_clk", };
static const char *gpu_clk_mux_p[] = { "dev_clk", "display_pll_clk", "ddr_clk_src", };
static const char *hde_clk_mux_p[] = { "dev_clk", "display_pll_clk", "ddr_clk_src", };
static const char *imx_clk_mux_p[] = { "assist_pll_clk", "dev_clk", };
static const char *lcd_clk_mux_p[] = { "display_pll_clk", "nand_pll_clk", };
static const char *nand_clk_mux_p[] = { "dev_clk", "nand_pll_clk", };
static const char *sd_clk_mux_p[] = { "dev_clk", "nand_pll_clk", };
static const char *sensor_clk_mux_p[] = { "hosc", "bisp_clk", };
static const char *uart_clk_mux_p[] = { "hosc", "dev_pll_clk", };
static const char *vce_clk_mux_p[] = { "dev_clk", "display_pll_clk", "assist_pll_clk", "ddr_clk_src", };
static const char *i2s_clk_mux_p[] = { "audio_pll_clk", };
static const char *edp_clk_mux_p[] = { "assist_pll_clk", "display_pll_clk", };
/* mux clocks */
static OWL_MUX(cpu_clk, "cpu_clk", cpu_clk_mux_p, CMU_BUSCLK, 0, 2, CLK_SET_RATE_PARENT);
static OWL_MUX(dev_clk, "dev_clk", dev_clk_p, CMU_DEVPLL, 12, 1, CLK_SET_RATE_PARENT);
static OWL_MUX(noc_clk_mux, "noc_clk_mux", noc_clk_mux_p, CMU_BUSCLK, 7, 1, CLK_SET_RATE_PARENT);
static struct clk_div_table nand_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 6 },
{ 4, 8 }, { 5, 10 }, { 6, 12 }, { 7, 14 },
{ 8, 16 }, { 9, 18 }, { 10, 20 }, { 11, 22 },
{ 12, 24 }, { 13, 26 }, { 14, 28 }, { 15, 30 },
{ /* sentinel */ }
};
static struct clk_div_table apb_div_table[] = {
{ 1, 2 }, { 2, 3 }, { 3, 4 },
{ /* sentinel */ }
};
static struct clk_div_table eth_mac_div_table[] = {
{ 0, 2 }, { 1, 4 },
{ /* sentinel */ }
};
static struct clk_div_table rmii_ref_div_table[] = {
{ 0, 4 }, { 1, 10 },
{ /* sentinel */ }
};
static struct clk_div_table usb3_mac_div_table[] = {
{ 1, 2 }, { 2, 3 }, { 3, 4 },
{ /* sentinel */ }
};
static struct clk_div_table i2s_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
{ 4, 6 }, { 5, 8 }, { 6, 12 }, { 7, 16 },
{ 8, 24 },
{ /* sentinel */ }
};
static struct clk_div_table hdmia_div_table[] = {
{ 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
{ 4, 6 }, { 5, 8 }, { 6, 12 }, { 7, 16 },
{ 8, 24 },
{ /* sentinel */ }
};
/* divider clocks */
static OWL_DIVIDER(noc_clk_div, "noc_clk_div", "noc_clk", CMU_BUSCLK, 19, 1, NULL, 0, 0);
static OWL_DIVIDER(ahb_clk, "ahb_clk", "noc_clk_div", CMU_BUSCLK, 4, 1, NULL, 0, 0);
static OWL_DIVIDER(apb_clk, "apb_clk", "ahb_clk", CMU_BUSCLK, 8, 2, apb_div_table, 0, 0);
static OWL_DIVIDER(usb3_mac_clk, "usb3_mac_clk", "assist_pll_clk", CMU_ASSISTPLL, 12, 2, usb3_mac_div_table, 0, 0);
static OWL_DIVIDER(rmii_ref_clk, "rmii_ref_clk", "assist_pll_clk", CMU_ASSISTPLL, 8, 1, rmii_ref_div_table, 0, 0);
static struct clk_factor_table sd_factor_table[] = {
/* bit0 ~ 4 */
{ 0, 1, 1 }, { 1, 1, 2 }, { 2, 1, 3 }, { 3, 1, 4 },
{ 4, 1, 5 }, { 5, 1, 6 }, { 6, 1, 7 }, { 7, 1, 8 },
{ 8, 1, 9 }, { 9, 1, 10 }, { 10, 1, 11 }, { 11, 1, 12 },
{ 12, 1, 13 }, { 13, 1, 14 }, { 14, 1, 15 }, { 15, 1, 16 },
{ 16, 1, 17 }, { 17, 1, 18 }, { 18, 1, 19 }, { 19, 1, 20 },
{ 20, 1, 21 }, { 21, 1, 22 }, { 22, 1, 23 }, { 23, 1, 24 },
{ 24, 1, 25 }, { 25, 1, 26 }, { 26, 1, 27 }, { 27, 1, 28 },
{ 28, 1, 29 }, { 29, 1, 30 }, { 30, 1, 31 }, { 31, 1, 32 },
/* bit8: /128 */
{ 256, 1, 1 * 128 }, { 257, 1, 2 * 128 }, { 258, 1, 3 * 128 }, { 259, 1, 4 * 128 },
{ 260, 1, 5 * 128 }, { 261, 1, 6 * 128 }, { 262, 1, 7 * 128 }, { 263, 1, 8 * 128 },
{ 264, 1, 9 * 128 }, { 265, 1, 10 * 128 }, { 266, 1, 11 * 128 }, { 267, 1, 12 * 128 },
{ 268, 1, 13 * 128 }, { 269, 1, 14 * 128 }, { 270, 1, 15 * 128 }, { 271, 1, 16 * 128 },
{ 272, 1, 17 * 128 }, { 273, 1, 18 * 128 }, { 274, 1, 19 * 128 }, { 275, 1, 20 * 128 },
{ 276, 1, 21 * 128 }, { 277, 1, 22 * 128 }, { 278, 1, 23 * 128 }, { 279, 1, 24 * 128 },
{ 280, 1, 25 * 128 }, { 281, 1, 26 * 128 }, { 282, 1, 27 * 128 }, { 283, 1, 28 * 128 },
{ 284, 1, 29 * 128 }, { 285, 1, 30 * 128 }, { 286, 1, 31 * 128 }, { 287, 1, 32 * 128 },
{ /* sentinel */ }
};
static struct clk_factor_table dmm_factor_table[] = {
{ 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 1, 3 },
{ 4, 1, 4 },
{ /* sentinel */ }
};
static struct clk_factor_table noc_factor_table[] = {
{ 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 1, 3 }, { 4, 1, 4 },
{ /* sentinel */ }
};
static struct clk_factor_table bisp_factor_table[] = {
{ 0, 1, 1 }, { 1, 2, 3 }, { 2, 1, 2 }, { 3, 2, 5 },
{ 4, 1, 3 }, { 5, 1, 4 }, { 6, 1, 6 }, { 7, 1, 8 },
{ /* sentinel */ }
};
/* factor clocks */
static OWL_FACTOR(noc_clk, "noc_clk", "noc_clk_mux", CMU_BUSCLK, 16, 3, noc_factor_table, 0, 0);
static OWL_FACTOR(de_clk1, "de_clk1", "de_clk", CMU_DECLK, 0, 3, bisp_factor_table, 0, 0);
static OWL_FACTOR(de_clk2, "de_clk2", "de_clk", CMU_DECLK, 4, 3, bisp_factor_table, 0, 0);
static OWL_FACTOR(de_clk3, "de_clk3", "de_clk", CMU_DECLK, 8, 3, bisp_factor_table, 0, 0);
/* gate clocks */
static OWL_GATE(gpio_clk, "gpio_clk", "apb_clk", CMU_DEVCLKEN0, 18, 0, 0);
static OWL_GATE_NO_PARENT(gpu_clk, "gpu_clk", CMU_DEVCLKEN0, 30, 0, 0);
static OWL_GATE(dmac_clk, "dmac_clk", "noc_clk_div", CMU_DEVCLKEN0, 1, 0, 0);
static OWL_GATE(timer_clk, "timer_clk", "hosc", CMU_DEVCLKEN1, 27, 0, 0);
static OWL_GATE_NO_PARENT(dsi_clk, "dsi_clk", CMU_DEVCLKEN0, 12, 0, 0);
static OWL_GATE(ddr0_clk, "ddr0_clk", "ddr_pll_clk", CMU_DEVCLKEN0, 31, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(ddr1_clk, "ddr1_clk", "ddr_pll_clk", CMU_DEVCLKEN0, 29, 0, CLK_IGNORE_UNUSED);
static OWL_GATE_NO_PARENT(usb3_480mpll0_clk, "usb3_480mpll0_clk", CMU_USBPLL, 3, 0, 0);
static OWL_GATE_NO_PARENT(usb3_480mphy0_clk, "usb3_480mphy0_clk", CMU_USBPLL, 2, 0, 0);
static OWL_GATE_NO_PARENT(usb3_5gphy_clk, "usb3_5gphy_clk", CMU_USBPLL, 1, 0, 0);
static OWL_GATE_NO_PARENT(usb3_cce_clk, "usb3_cce_clk", CMU_USBPLL, 0, 0, 0);
static OWL_GATE(edp24M_clk, "edp24M_clk", "diff24M", CMU_EDPCLK, 8, 0, 0);
static OWL_GATE(edp_link_clk, "edp_link_clk", "edp_pll_clk", CMU_DEVCLKEN0, 10, 0, 0);
static OWL_GATE_NO_PARENT(usbh0_pllen_clk, "usbh0_pllen_clk", CMU_USBPLL, 12, 0, 0);
static OWL_GATE_NO_PARENT(usbh0_phy_clk, "usbh0_phy_clk", CMU_USBPLL, 10, 0, 0);
static OWL_GATE_NO_PARENT(usbh0_cce_clk, "usbh0_cce_clk", CMU_USBPLL, 8, 0, 0);
static OWL_GATE_NO_PARENT(usbh1_pllen_clk, "usbh1_pllen_clk", CMU_USBPLL, 13, 0, 0);
static OWL_GATE_NO_PARENT(usbh1_phy_clk, "usbh1_phy_clk", CMU_USBPLL, 11, 0, 0);
static OWL_GATE_NO_PARENT(usbh1_cce_clk, "usbh1_cce_clk", CMU_USBPLL, 9, 0, 0);
static OWL_GATE(spi0_clk, "spi0_clk", "ahb_clk", CMU_DEVCLKEN1, 10, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(spi1_clk, "spi1_clk", "ahb_clk", CMU_DEVCLKEN1, 11, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(spi2_clk, "spi2_clk", "ahb_clk", CMU_DEVCLKEN1, 12, 0, CLK_IGNORE_UNUSED);
static OWL_GATE(spi3_clk, "spi3_clk", "ahb_clk", CMU_DEVCLKEN1, 13, 0, CLK_IGNORE_UNUSED);
/* composite clocks */
static OWL_COMP_FACTOR(bisp_clk, "bisp_clk", bisp_clk_mux_p,
OWL_MUX_HW(CMU_BISPCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
OWL_FACTOR_HW(CMU_BISPCLK, 0, 3, 0, bisp_factor_table),
0);
static OWL_COMP_DIV(csi0_clk, "csi0_clk", csi_clk_mux_p,
OWL_MUX_HW(CMU_CSICLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 13, 0),
OWL_DIVIDER_HW(CMU_CSICLK, 0, 4, 0, NULL),
0);
static OWL_COMP_DIV(csi1_clk, "csi1_clk", csi_clk_mux_p,
OWL_MUX_HW(CMU_CSICLK, 20, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 15, 0),
OWL_DIVIDER_HW(CMU_CSICLK, 16, 4, 0, NULL),
0);
static OWL_COMP_PASS(de_clk, "de_clk", de_clk_mux_p,
OWL_MUX_HW(CMU_DECLK, 12, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 8, 0),
0);
static OWL_COMP_FACTOR(dmm_clk, "dmm_clk", dmm_clk_mux_p,
OWL_MUX_HW(CMU_BUSCLK, 10, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 19, 0),
OWL_FACTOR_HW(CMU_BUSCLK, 12, 3, 0, dmm_factor_table),
CLK_IGNORE_UNUSED);
static OWL_COMP_FACTOR(edp_clk, "edp_clk", edp_clk_mux_p,
OWL_MUX_HW(CMU_EDPCLK, 19, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 10, 0),
OWL_FACTOR_HW(CMU_EDPCLK, 16, 3, 0, bisp_factor_table),
0);
static OWL_COMP_DIV_FIXED(eth_mac_clk, "eth_mac_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 22, 0),
OWL_DIVIDER_HW(CMU_ASSISTPLL, 10, 1, 0, eth_mac_div_table),
0);
static OWL_COMP_FACTOR(gpu_core_clk, "gpu_core_clk", gpu_clk_mux_p,
OWL_MUX_HW(CMU_GPU3DCLK, 4, 2),
OWL_GATE_HW(CMU_GPU3DCLK, 15, 0),
OWL_FACTOR_HW(CMU_GPU3DCLK, 0, 3, 0, bisp_factor_table),
0);
static OWL_COMP_FACTOR(gpu_mem_clk, "gpu_mem_clk", gpu_clk_mux_p,
OWL_MUX_HW(CMU_GPU3DCLK, 20, 2),
OWL_GATE_HW(CMU_GPU3DCLK, 14, 0),
OWL_FACTOR_HW(CMU_GPU3DCLK, 16, 3, 0, bisp_factor_table),
0);
static OWL_COMP_FACTOR(gpu_sys_clk, "gpu_sys_clk", gpu_clk_mux_p,
OWL_MUX_HW(CMU_GPU3DCLK, 28, 2),
OWL_GATE_HW(CMU_GPU3DCLK, 13, 0),
OWL_FACTOR_HW(CMU_GPU3DCLK, 24, 3, 0, bisp_factor_table),
0);
static OWL_COMP_FACTOR(hde_clk, "hde_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_HDECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 27, 0),
OWL_FACTOR_HW(CMU_HDECLK, 0, 3, 0, bisp_factor_table),
0);
static OWL_COMP_DIV(hdmia_clk, "hdmia_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 22, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 24, 4, 0, hdmia_div_table),
0);
static OWL_COMP_FIXED_FACTOR(i2c0_clk, "i2c0_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 14, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c1_clk, "i2c1_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 15, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c2_clk, "i2c2_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 30, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c3_clk, "i2c3_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 31, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c4_clk, "i2c4_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN0, 17, 0),
1, 5, 0);
static OWL_COMP_FIXED_FACTOR(i2c5_clk, "i2c5_clk", "assist_pll_clk",
OWL_GATE_HW(CMU_DEVCLKEN1, 1, 0),
1, 5, 0);
static OWL_COMP_DIV(i2srx_clk, "i2srx_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 21, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 20, 4, 0, i2s_div_table),
0);
static OWL_COMP_DIV(i2stx_clk, "i2stx_clk", i2s_clk_mux_p,
OWL_MUX_HW(CMU_AUDIOPLL, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 20, 0),
OWL_DIVIDER_HW(CMU_AUDIOPLL, 16, 4, 0, i2s_div_table),
0);
static OWL_COMP_FACTOR(imx_clk, "imx_clk", imx_clk_mux_p,
OWL_MUX_HW(CMU_IMXCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 17, 0),
OWL_FACTOR_HW(CMU_IMXCLK, 0, 3, 0, bisp_factor_table),
0);
static OWL_COMP_DIV(lcd_clk, "lcd_clk", lcd_clk_mux_p,
OWL_MUX_HW(CMU_LCDCLK, 12, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 9, 0),
OWL_DIVIDER_HW(CMU_LCDCLK, 0, 5, 0, NULL),
0);
static OWL_COMP_DIV(nand0_clk, "nand0_clk", nand_clk_mux_p,
OWL_MUX_HW(CMU_NANDCCLK, 8, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 4, 0),
OWL_DIVIDER_HW(CMU_NANDCCLK, 0, 4, 0, nand_div_table),
CLK_SET_RATE_PARENT);
static OWL_COMP_DIV(nand1_clk, "nand1_clk", nand_clk_mux_p,
OWL_MUX_HW(CMU_NANDCCLK, 24, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 11, 0),
OWL_DIVIDER_HW(CMU_NANDCCLK, 16, 4, 0, nand_div_table),
CLK_SET_RATE_PARENT);
static OWL_COMP_DIV_FIXED(pwm0_clk, "pwm0_clk", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 23, 0),
OWL_DIVIDER_HW(CMU_PWM0CLK, 0, 6, 0, NULL),
0);
static OWL_COMP_DIV_FIXED(pwm1_clk, "pwm1_clk", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 24, 0),
OWL_DIVIDER_HW(CMU_PWM1CLK, 0, 6, 0, NULL),
0);
/*
* pwm2 may be for backlight, do not gate it
* even it is "unused", because it may be
* enabled at boot stage, and in kernel, driver
* has no effective method to know the real status,
* so, the best way is keeping it as what it was.
*/
static OWL_COMP_DIV_FIXED(pwm2_clk, "pwm2_clk", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 25, 0),
OWL_DIVIDER_HW(CMU_PWM2CLK, 0, 6, 0, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV_FIXED(pwm3_clk, "pwm3_clk", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 26, 0),
OWL_DIVIDER_HW(CMU_PWM3CLK, 0, 6, 0, NULL),
0);
static OWL_COMP_DIV_FIXED(pwm4_clk, "pwm4_clk", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 4, 0),
OWL_DIVIDER_HW(CMU_PWM4CLK, 0, 6, 0, NULL),
0);
static OWL_COMP_DIV_FIXED(pwm5_clk, "pwm5_clk", "hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 5, 0),
OWL_DIVIDER_HW(CMU_PWM5CLK, 0, 6, 0, NULL),
0);
static OWL_COMP_FACTOR(sd0_clk, "sd0_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD0CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 5, 0),
OWL_FACTOR_HW(CMU_SD0CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(sd1_clk, "sd1_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD1CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 6, 0),
OWL_FACTOR_HW(CMU_SD1CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(sd2_clk, "sd2_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD2CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 7, 0),
OWL_FACTOR_HW(CMU_SD2CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_FACTOR(sd3_clk, "sd3_clk", sd_clk_mux_p,
OWL_MUX_HW(CMU_SD3CLK, 9, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 16, 0),
OWL_FACTOR_HW(CMU_SD3CLK, 0, 9, 0, sd_factor_table),
0);
static OWL_COMP_DIV(sensor_clk, "sensor_clk", sensor_clk_mux_p,
OWL_MUX_HW(CMU_SENSORCLK, 4, 1),
OWL_GATE_HW(CMU_DEVCLKEN0, 14, 0),
OWL_DIVIDER_HW(CMU_SENSORCLK, 0, 4, 0, NULL),
0);
static OWL_COMP_DIV_FIXED(speed_sensor_clk, "speed_sensor_clk",
"hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 0, 0),
OWL_DIVIDER_HW(CMU_TLSCLK, 0, 4, CLK_DIVIDER_POWER_OF_TWO, NULL),
0);
static OWL_COMP_DIV_FIXED(thermal_sensor_clk, "thermal_sensor_clk",
"hosc",
OWL_GATE_HW(CMU_DEVCLKEN1, 2, 0),
OWL_DIVIDER_HW(CMU_TLSCLK, 8, 4, CLK_DIVIDER_POWER_OF_TWO, NULL),
0);
static OWL_COMP_DIV(uart0_clk, "uart0_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART0CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 6, 0),
OWL_DIVIDER_HW(CMU_UART0CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart1_clk, "uart1_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART1CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 7, 0),
OWL_DIVIDER_HW(CMU_UART1CLK, 1, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart2_clk, "uart2_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART2CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 8, 0),
OWL_DIVIDER_HW(CMU_UART2CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart3_clk, "uart3_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART3CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 19, 0),
OWL_DIVIDER_HW(CMU_UART3CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart4_clk, "uart4_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART4CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 20, 0),
OWL_DIVIDER_HW(CMU_UART4CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart5_clk, "uart5_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART5CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 21, 0),
OWL_DIVIDER_HW(CMU_UART5CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_DIV(uart6_clk, "uart6_clk", uart_clk_mux_p,
OWL_MUX_HW(CMU_UART6CLK, 16, 1),
OWL_GATE_HW(CMU_DEVCLKEN1, 18, 0),
OWL_DIVIDER_HW(CMU_UART6CLK, 0, 8, CLK_DIVIDER_ROUND_CLOSEST, NULL),
CLK_IGNORE_UNUSED);
static OWL_COMP_FACTOR(vce_clk, "vce_clk", vce_clk_mux_p,
OWL_MUX_HW(CMU_VCECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 26, 0),
OWL_FACTOR_HW(CMU_VCECLK, 0, 3, 0, bisp_factor_table),
0);
static OWL_COMP_FACTOR(vde_clk, "vde_clk", hde_clk_mux_p,
OWL_MUX_HW(CMU_VDECLK, 4, 2),
OWL_GATE_HW(CMU_DEVCLKEN0, 25, 0),
OWL_FACTOR_HW(CMU_VDECLK, 0, 3, 0, bisp_factor_table),
0);
static struct owl_clk_common *s900_clks[] = {
&core_pll_clk.common,
&dev_pll_clk.common,
&ddr_pll_clk.common,
&nand_pll_clk.common,
&display_pll_clk.common,
&assist_pll_clk.common,
&audio_pll_clk.common,
&edp_pll_clk.common,
&cpu_clk.common,
&dev_clk.common,
&noc_clk_mux.common,
&noc_clk_div.common,
&ahb_clk.common,
&apb_clk.common,
&usb3_mac_clk.common,
&rmii_ref_clk.common,
&noc_clk.common,
&de_clk1.common,
&de_clk2.common,
&de_clk3.common,
&gpio_clk.common,
&gpu_clk.common,
&dmac_clk.common,
&timer_clk.common,
&dsi_clk.common,
&ddr0_clk.common,
&ddr1_clk.common,
&usb3_480mpll0_clk.common,
&usb3_480mphy0_clk.common,
&usb3_5gphy_clk.common,
&usb3_cce_clk.common,
&edp24M_clk.common,
&edp_link_clk.common,
&usbh0_pllen_clk.common,
&usbh0_phy_clk.common,
&usbh0_cce_clk.common,
&usbh1_pllen_clk.common,
&usbh1_phy_clk.common,
&usbh1_cce_clk.common,
&i2c0_clk.common,
&i2c1_clk.common,
&i2c2_clk.common,
&i2c3_clk.common,
&i2c4_clk.common,
&i2c5_clk.common,
&spi0_clk.common,
&spi1_clk.common,
&spi2_clk.common,
&spi3_clk.common,
&bisp_clk.common,
&csi0_clk.common,
&csi1_clk.common,
&de_clk.common,
&dmm_clk.common,
&edp_clk.common,
&eth_mac_clk.common,
&gpu_core_clk.common,
&gpu_mem_clk.common,
&gpu_sys_clk.common,
&hde_clk.common,
&hdmia_clk.common,
&i2srx_clk.common,
&i2stx_clk.common,
&imx_clk.common,
&lcd_clk.common,
&nand0_clk.common,
&nand1_clk.common,
&pwm0_clk.common,
&pwm1_clk.common,
&pwm2_clk.common,
&pwm3_clk.common,
&pwm4_clk.common,
&pwm5_clk.common,
&sd0_clk.common,
&sd1_clk.common,
&sd2_clk.common,
&sd3_clk.common,
&sensor_clk.common,
&speed_sensor_clk.common,
&thermal_sensor_clk.common,
&uart0_clk.common,
&uart1_clk.common,
&uart2_clk.common,
&uart3_clk.common,
&uart4_clk.common,
&uart5_clk.common,
&uart6_clk.common,
&vce_clk.common,
&vde_clk.common,
};
static struct clk_hw_onecell_data s900_hw_clks = {
.hws = {
[CLK_CORE_PLL] = &core_pll_clk.common.hw,
[CLK_DEV_PLL] = &dev_pll_clk.common.hw,
[CLK_DDR_PLL] = &ddr_pll_clk.common.hw,
[CLK_NAND_PLL] = &nand_pll_clk.common.hw,
[CLK_DISPLAY_PLL] = &display_pll_clk.common.hw,
[CLK_ASSIST_PLL] = &assist_pll_clk.common.hw,
[CLK_AUDIO_PLL] = &audio_pll_clk.common.hw,
[CLK_EDP_PLL] = &edp_pll_clk.common.hw,
[CLK_CPU] = &cpu_clk.common.hw,
[CLK_DEV] = &dev_clk.common.hw,
[CLK_NOC_MUX] = &noc_clk_mux.common.hw,
[CLK_NOC_DIV] = &noc_clk_div.common.hw,
[CLK_AHB] = &ahb_clk.common.hw,
[CLK_APB] = &apb_clk.common.hw,
[CLK_USB3_MAC] = &usb3_mac_clk.common.hw,
[CLK_RMII_REF] = &rmii_ref_clk.common.hw,
[CLK_NOC] = &noc_clk.common.hw,
[CLK_DE1] = &de_clk1.common.hw,
[CLK_DE2] = &de_clk2.common.hw,
[CLK_DE3] = &de_clk3.common.hw,
[CLK_GPIO] = &gpio_clk.common.hw,
[CLK_GPU] = &gpu_clk.common.hw,
[CLK_DMAC] = &dmac_clk.common.hw,
[CLK_TIMER] = &timer_clk.common.hw,
[CLK_DSI] = &dsi_clk.common.hw,
[CLK_DDR0] = &ddr0_clk.common.hw,
[CLK_DDR1] = &ddr1_clk.common.hw,
[CLK_USB3_480MPLL0] = &usb3_480mpll0_clk.common.hw,
[CLK_USB3_480MPHY0] = &usb3_480mphy0_clk.common.hw,
[CLK_USB3_5GPHY] = &usb3_5gphy_clk.common.hw,
[CLK_USB3_CCE] = &usb3_cce_clk.common.hw,
[CLK_24M_EDP] = &edp24M_clk.common.hw,
[CLK_EDP_LINK] = &edp_link_clk.common.hw,
[CLK_USB2H0_PLLEN] = &usbh0_pllen_clk.common.hw,
[CLK_USB2H0_PHY] = &usbh0_phy_clk.common.hw,
[CLK_USB2H0_CCE] = &usbh0_cce_clk.common.hw,
[CLK_USB2H1_PLLEN] = &usbh1_pllen_clk.common.hw,
[CLK_USB2H1_PHY] = &usbh1_phy_clk.common.hw,
[CLK_USB2H1_CCE] = &usbh1_cce_clk.common.hw,
[CLK_I2C0] = &i2c0_clk.common.hw,
[CLK_I2C1] = &i2c1_clk.common.hw,
[CLK_I2C2] = &i2c2_clk.common.hw,
[CLK_I2C3] = &i2c3_clk.common.hw,
[CLK_I2C4] = &i2c4_clk.common.hw,
[CLK_I2C5] = &i2c5_clk.common.hw,
[CLK_SPI0] = &spi0_clk.common.hw,
[CLK_SPI1] = &spi1_clk.common.hw,
[CLK_SPI2] = &spi2_clk.common.hw,
[CLK_SPI3] = &spi3_clk.common.hw,
[CLK_BISP] = &bisp_clk.common.hw,
[CLK_CSI0] = &csi0_clk.common.hw,
[CLK_CSI1] = &csi1_clk.common.hw,
[CLK_DE0] = &de_clk.common.hw,
[CLK_DMM] = &dmm_clk.common.hw,
[CLK_EDP] = &edp_clk.common.hw,
[CLK_ETH_MAC] = &eth_mac_clk.common.hw,
[CLK_GPU_CORE] = &gpu_core_clk.common.hw,
[CLK_GPU_MEM] = &gpu_mem_clk.common.hw,
[CLK_GPU_SYS] = &gpu_sys_clk.common.hw,
[CLK_HDE] = &hde_clk.common.hw,
[CLK_HDMI_AUDIO] = &hdmia_clk.common.hw,
[CLK_I2SRX] = &i2srx_clk.common.hw,
[CLK_I2STX] = &i2stx_clk.common.hw,
[CLK_IMX] = &imx_clk.common.hw,
[CLK_LCD] = &lcd_clk.common.hw,
[CLK_NAND0] = &nand0_clk.common.hw,
[CLK_NAND1] = &nand1_clk.common.hw,
[CLK_PWM0] = &pwm0_clk.common.hw,
[CLK_PWM1] = &pwm1_clk.common.hw,
[CLK_PWM2] = &pwm2_clk.common.hw,
[CLK_PWM3] = &pwm3_clk.common.hw,
[CLK_PWM4] = &pwm4_clk.common.hw,
[CLK_PWM5] = &pwm5_clk.common.hw,
[CLK_SD0] = &sd0_clk.common.hw,
[CLK_SD1] = &sd1_clk.common.hw,
[CLK_SD2] = &sd2_clk.common.hw,
[CLK_SD3] = &sd3_clk.common.hw,
[CLK_SENSOR] = &sensor_clk.common.hw,
[CLK_SPEED_SENSOR] = &speed_sensor_clk.common.hw,
[CLK_THERMAL_SENSOR] = &thermal_sensor_clk.common.hw,
[CLK_UART0] = &uart0_clk.common.hw,
[CLK_UART1] = &uart1_clk.common.hw,
[CLK_UART2] = &uart2_clk.common.hw,
[CLK_UART3] = &uart3_clk.common.hw,
[CLK_UART4] = &uart4_clk.common.hw,
[CLK_UART5] = &uart5_clk.common.hw,
[CLK_UART6] = &uart6_clk.common.hw,
[CLK_VCE] = &vce_clk.common.hw,
[CLK_VDE] = &vde_clk.common.hw,
},
.num = CLK_NR_CLKS,
};
static const struct owl_reset_map s900_resets[] = {
[RESET_DMAC] = { CMU_DEVRST0, BIT(0) },
[RESET_SRAMI] = { CMU_DEVRST0, BIT(1) },
[RESET_DDR_CTL_PHY] = { CMU_DEVRST0, BIT(2) },
[RESET_NANDC0] = { CMU_DEVRST0, BIT(3) },
[RESET_SD0] = { CMU_DEVRST0, BIT(4) },
[RESET_SD1] = { CMU_DEVRST0, BIT(5) },
[RESET_PCM1] = { CMU_DEVRST0, BIT(6) },
[RESET_DE] = { CMU_DEVRST0, BIT(7) },
[RESET_LVDS] = { CMU_DEVRST0, BIT(8) },
[RESET_SD2] = { CMU_DEVRST0, BIT(9) },
[RESET_DSI] = { CMU_DEVRST0, BIT(10) },
[RESET_CSI0] = { CMU_DEVRST0, BIT(11) },
[RESET_BISP_AXI] = { CMU_DEVRST0, BIT(12) },
[RESET_CSI1] = { CMU_DEVRST0, BIT(13) },
[RESET_GPIO] = { CMU_DEVRST0, BIT(15) },
[RESET_EDP] = { CMU_DEVRST0, BIT(16) },
[RESET_AUDIO] = { CMU_DEVRST0, BIT(17) },
[RESET_PCM0] = { CMU_DEVRST0, BIT(18) },
[RESET_HDE] = { CMU_DEVRST0, BIT(21) },
[RESET_GPU3D_PA] = { CMU_DEVRST0, BIT(22) },
[RESET_IMX] = { CMU_DEVRST0, BIT(23) },
[RESET_SE] = { CMU_DEVRST0, BIT(24) },
[RESET_NANDC1] = { CMU_DEVRST0, BIT(25) },
[RESET_SD3] = { CMU_DEVRST0, BIT(26) },
[RESET_GIC] = { CMU_DEVRST0, BIT(27) },
[RESET_GPU3D_PB] = { CMU_DEVRST0, BIT(28) },
[RESET_DDR_CTL_PHY_AXI] = { CMU_DEVRST0, BIT(29) },
[RESET_CMU_DDR] = { CMU_DEVRST0, BIT(30) },
[RESET_DMM] = { CMU_DEVRST0, BIT(31) },
[RESET_USB2HUB] = { CMU_DEVRST1, BIT(0) },
[RESET_USB2HSIC] = { CMU_DEVRST1, BIT(1) },
[RESET_HDMI] = { CMU_DEVRST1, BIT(2) },
[RESET_HDCP2TX] = { CMU_DEVRST1, BIT(3) },
[RESET_UART6] = { CMU_DEVRST1, BIT(4) },
[RESET_UART0] = { CMU_DEVRST1, BIT(5) },
[RESET_UART1] = { CMU_DEVRST1, BIT(6) },
[RESET_UART2] = { CMU_DEVRST1, BIT(7) },
[RESET_SPI0] = { CMU_DEVRST1, BIT(8) },
[RESET_SPI1] = { CMU_DEVRST1, BIT(9) },
[RESET_SPI2] = { CMU_DEVRST1, BIT(10) },
[RESET_SPI3] = { CMU_DEVRST1, BIT(11) },
[RESET_I2C0] = { CMU_DEVRST1, BIT(12) },
[RESET_I2C1] = { CMU_DEVRST1, BIT(13) },
[RESET_USB3] = { CMU_DEVRST1, BIT(14) },
[RESET_UART3] = { CMU_DEVRST1, BIT(15) },
[RESET_UART4] = { CMU_DEVRST1, BIT(16) },
[RESET_UART5] = { CMU_DEVRST1, BIT(17) },
[RESET_I2C2] = { CMU_DEVRST1, BIT(18) },
[RESET_I2C3] = { CMU_DEVRST1, BIT(19) },
[RESET_ETHERNET] = { CMU_DEVRST1, BIT(20) },
[RESET_CHIPID] = { CMU_DEVRST1, BIT(21) },
[RESET_I2C4] = { CMU_DEVRST1, BIT(22) },
[RESET_I2C5] = { CMU_DEVRST1, BIT(23) },
[RESET_CPU_SCNT] = { CMU_DEVRST1, BIT(30) }
};
static struct owl_clk_desc s900_clk_desc = {
.clks = s900_clks,
.num_clks = ARRAY_SIZE(s900_clks),
.hw_clks = &s900_hw_clks,
.resets = s900_resets,
.num_resets = ARRAY_SIZE(s900_resets),
};
static int s900_clk_probe(struct platform_device *pdev)
{
struct owl_clk_desc *desc;
struct owl_reset *reset;
int ret;
desc = &s900_clk_desc;
owl_clk_regmap_init(pdev, desc);
/*
* FIXME: Reset controller registration should be moved to
* common code, once all SoCs of Owl family supports it.
*/
reset = devm_kzalloc(&pdev->dev, sizeof(*reset), GFP_KERNEL);
if (!reset)
return -ENOMEM;
reset->rcdev.of_node = pdev->dev.of_node;
reset->rcdev.ops = &owl_reset_ops;
reset->rcdev.nr_resets = desc->num_resets;
reset->reset_map = desc->resets;
reset->regmap = desc->regmap;
ret = devm_reset_controller_register(&pdev->dev, &reset->rcdev);
if (ret)
dev_err(&pdev->dev, "Failed to register reset controller\n");
return owl_clk_probe(&pdev->dev, desc->hw_clks);
}
static const struct of_device_id s900_clk_of_match[] = {
{ .compatible = "actions,s900-cmu", },
{ /* sentinel */ }
};
static struct platform_driver s900_clk_driver = {
.probe = s900_clk_probe,
.driver = {
.name = "s900-cmu",
.of_match_table = s900_clk_of_match,
},
};
static int __init s900_clk_init(void)
{
return platform_driver_register(&s900_clk_driver);
}
core_initcall(s900_clk_init);