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linux/drivers/clk/ti/dpll.c
Dario Binacchi 0899431f95 clk: ti: add am33xx/am43xx spread spectrum clock support 
The patch enables spread spectrum clocking (SSC) for MPU and LCD PLLs.
As reported by the TI spruh73x/spruhl7x RM, SSC is only supported for
the DISP/LCD and MPU PLLs on am33xx/am43xx. SSC is not supported for
DDR, PER, and CORE PLLs.

Calculating the required values and setting the registers accordingly
was taken from the set_mpu_spreadspectrum routine contained in the
arch/arm/mach-omap2/am33xx/clock_am33xx.c file of the u-boot project.

In locked condition, DPLL output clock = CLKINP *[M/N]. In case of
SSC enabled, the reference manual explains that there is a restriction
of range of M values. Since the omap2_dpll_round_rate routine attempts
to select the minimum possible N, the value of M obtained is not
guaranteed to be within the range required. With the new "ti,min-div"
parameter it is possible to increase N and consequently M to satisfy the
constraint imposed by SSC.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Link: https://lore.kernel.org/r/20210606202253.31649-6-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2021-06-08 17:49:16 -07:00

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/*
* OMAP DPLL clock support
*
* Copyright (C) 2013 Texas Instruments, Inc.
*
* Tero Kristo <t-kristo@ti.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether express or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/clk/ti.h>
#include "clock.h"
#undef pr_fmt
#define pr_fmt(fmt) "%s: " fmt, __func__
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX)
static const struct clk_ops dpll_m4xen_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
.recalc_rate = &omap4_dpll_regm4xen_recalc,
.round_rate = &omap4_dpll_regm4xen_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap4_dpll_regm4xen_determine_rate,
.get_parent = &omap2_init_dpll_parent,
.save_context = &omap3_core_dpll_save_context,
.restore_context = &omap3_core_dpll_restore_context,
};
#else
static const struct clk_ops dpll_m4xen_ck_ops = {};
#endif
#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_ARCH_OMAP4) || \
defined(CONFIG_SOC_OMAP5) || defined(CONFIG_SOC_DRA7XX) || \
defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static const struct clk_ops dpll_core_ck_ops = {
.recalc_rate = &omap3_dpll_recalc,
.get_parent = &omap2_init_dpll_parent,
};
static const struct clk_ops dpll_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
.recalc_rate = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.get_parent = &omap2_init_dpll_parent,
.save_context = &omap3_noncore_dpll_save_context,
.restore_context = &omap3_noncore_dpll_restore_context,
};
static const struct clk_ops dpll_no_gate_ck_ops = {
.recalc_rate = &omap3_dpll_recalc,
.get_parent = &omap2_init_dpll_parent,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap3_noncore_dpll_set_rate,
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.save_context = &omap3_noncore_dpll_save_context,
.restore_context = &omap3_noncore_dpll_restore_context
};
#else
static const struct clk_ops dpll_core_ck_ops = {};
static const struct clk_ops dpll_ck_ops = {};
static const struct clk_ops dpll_no_gate_ck_ops = {};
const struct clk_hw_omap_ops clkhwops_omap3_dpll = {};
#endif
#ifdef CONFIG_ARCH_OMAP2
static const struct clk_ops omap2_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap2_dpllcore_recalc,
.round_rate = &omap2_dpll_round_rate,
.set_rate = &omap2_reprogram_dpllcore,
};
#else
static const struct clk_ops omap2_dpll_core_ck_ops = {};
#endif
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_core_ck_ops = {
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.round_rate = &omap2_dpll_round_rate,
};
#else
static const struct clk_ops omap3_dpll_core_ck_ops = {};
#endif
#ifdef CONFIG_ARCH_OMAP3
static const struct clk_ops omap3_dpll_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.set_rate = &omap3_noncore_dpll_set_rate,
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.round_rate = &omap2_dpll_round_rate,
};
static const struct clk_ops omap3_dpll5_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.set_rate = &omap3_dpll5_set_rate,
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_noncore_dpll_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.round_rate = &omap2_dpll_round_rate,
};
static const struct clk_ops omap3_dpll_per_ck_ops = {
.enable = &omap3_noncore_dpll_enable,
.disable = &omap3_noncore_dpll_disable,
.get_parent = &omap2_init_dpll_parent,
.recalc_rate = &omap3_dpll_recalc,
.set_rate = &omap3_dpll4_set_rate,
.set_parent = &omap3_noncore_dpll_set_parent,
.set_rate_and_parent = &omap3_dpll4_set_rate_and_parent,
.determine_rate = &omap3_noncore_dpll_determine_rate,
.round_rate = &omap2_dpll_round_rate,
};
#endif
static const struct clk_ops dpll_x2_ck_ops = {
.recalc_rate = &omap3_clkoutx2_recalc,
};
/**
* _register_dpll - low level registration of a DPLL clock
* @user: pointer to the hardware clock definition for the clock
* @node: device node for the clock
*
* Finalizes DPLL registration process. In case a failure (clk-ref or
* clk-bypass is missing), the clock is added to retry list and
* the initialization is retried on later stage.
*/
static void __init _register_dpll(void *user,
struct device_node *node)
{
struct clk_hw *hw = user;
struct clk_hw_omap *clk_hw = to_clk_hw_omap(hw);
struct dpll_data *dd = clk_hw->dpll_data;
struct clk *clk;
const struct clk_init_data *init = hw->init;
clk = of_clk_get(node, 0);
if (IS_ERR(clk)) {
pr_debug("clk-ref missing for %pOFn, retry later\n",
node);
if (!ti_clk_retry_init(node, hw, _register_dpll))
return;
goto cleanup;
}
dd->clk_ref = __clk_get_hw(clk);
clk = of_clk_get(node, 1);
if (IS_ERR(clk)) {
pr_debug("clk-bypass missing for %pOFn, retry later\n",
node);
if (!ti_clk_retry_init(node, hw, _register_dpll))
return;
goto cleanup;
}
dd->clk_bypass = __clk_get_hw(clk);
/* register the clock */
clk = ti_clk_register_omap_hw(NULL, &clk_hw->hw, node->name);
if (!IS_ERR(clk)) {
of_clk_add_provider(node, of_clk_src_simple_get, clk);
kfree(init->parent_names);
kfree(init);
return;
}
cleanup:
kfree(clk_hw->dpll_data);
kfree(init->parent_names);
kfree(init);
kfree(clk_hw);
}
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM33XX) || \
defined(CONFIG_SOC_AM43XX)
/**
* _register_dpll_x2 - Registers a DPLLx2 clock
* @node: device node for this clock
* @ops: clk_ops for this clock
* @hw_ops: clk_hw_ops for this clock
*
* Initializes a DPLL x 2 clock from device tree data.
*/
static void _register_dpll_x2(struct device_node *node,
const struct clk_ops *ops,
const struct clk_hw_omap_ops *hw_ops)
{
struct clk *clk;
struct clk_init_data init = { NULL };
struct clk_hw_omap *clk_hw;
const char *name = node->name;
const char *parent_name;
parent_name = of_clk_get_parent_name(node, 0);
if (!parent_name) {
pr_err("%pOFn must have parent\n", node);
return;
}
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
if (!clk_hw)
return;
clk_hw->ops = hw_ops;
clk_hw->hw.init = &init;
init.name = name;
init.ops = ops;
init.parent_names = &parent_name;
init.num_parents = 1;
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX)
if (hw_ops == &clkhwops_omap4_dpllmx) {
int ret;
/* Check if register defined, if not, drop hw-ops */
ret = of_property_count_elems_of_size(node, "reg", 1);
if (ret <= 0) {
clk_hw->ops = NULL;
} else if (ti_clk_get_reg_addr(node, 0, &clk_hw->clksel_reg)) {
kfree(clk_hw);
return;
}
}
#endif
/* register the clock */
clk = ti_clk_register_omap_hw(NULL, &clk_hw->hw, name);
if (IS_ERR(clk))
kfree(clk_hw);
else
of_clk_add_provider(node, of_clk_src_simple_get, clk);
}
#endif
/**
* of_ti_dpll_setup - Setup function for OMAP DPLL clocks
* @node: device node containing the DPLL info
* @ops: ops for the DPLL
* @ddt: DPLL data template to use
*
* Initializes a DPLL clock from device tree data.
*/
static void __init of_ti_dpll_setup(struct device_node *node,
const struct clk_ops *ops,
const struct dpll_data *ddt)
{
struct clk_hw_omap *clk_hw = NULL;
struct clk_init_data *init = NULL;
const char **parent_names = NULL;
struct dpll_data *dd = NULL;
int ssc_clk_index;
u8 dpll_mode = 0;
u32 min_div;
dd = kmemdup(ddt, sizeof(*dd), GFP_KERNEL);
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
init = kzalloc(sizeof(*init), GFP_KERNEL);
if (!dd || !clk_hw || !init)
goto cleanup;
clk_hw->dpll_data = dd;
clk_hw->ops = &clkhwops_omap3_dpll;
clk_hw->hw.init = init;
init->name = node->name;
init->ops = ops;
init->num_parents = of_clk_get_parent_count(node);
if (!init->num_parents) {
pr_err("%pOFn must have parent(s)\n", node);
goto cleanup;
}
parent_names = kcalloc(init->num_parents, sizeof(char *), GFP_KERNEL);
if (!parent_names)
goto cleanup;
of_clk_parent_fill(node, parent_names, init->num_parents);
init->parent_names = parent_names;
if (ti_clk_get_reg_addr(node, 0, &dd->control_reg))
goto cleanup;
/*
* Special case for OMAP2 DPLL, register order is different due to
* missing idlest_reg, also clkhwops is different. Detected from
* missing idlest_mask.
*/
if (!dd->idlest_mask) {
if (ti_clk_get_reg_addr(node, 1, &dd->mult_div1_reg))
goto cleanup;
#ifdef CONFIG_ARCH_OMAP2
clk_hw->ops = &clkhwops_omap2xxx_dpll;
omap2xxx_clkt_dpllcore_init(&clk_hw->hw);
#endif
} else {
if (ti_clk_get_reg_addr(node, 1, &dd->idlest_reg))
goto cleanup;
if (ti_clk_get_reg_addr(node, 2, &dd->mult_div1_reg))
goto cleanup;
}
if (dd->autoidle_mask) {
if (ti_clk_get_reg_addr(node, 3, &dd->autoidle_reg))
goto cleanup;
ssc_clk_index = 4;
} else {
ssc_clk_index = 3;
}
if (dd->ssc_deltam_int_mask && dd->ssc_deltam_frac_mask &&
dd->ssc_modfreq_mant_mask && dd->ssc_modfreq_exp_mask) {
if (ti_clk_get_reg_addr(node, ssc_clk_index++,
&dd->ssc_deltam_reg))
goto cleanup;
if (ti_clk_get_reg_addr(node, ssc_clk_index++,
&dd->ssc_modfreq_reg))
goto cleanup;
of_property_read_u32(node, "ti,ssc-modfreq-hz",
&dd->ssc_modfreq);
of_property_read_u32(node, "ti,ssc-deltam", &dd->ssc_deltam);
dd->ssc_downspread =
of_property_read_bool(node, "ti,ssc-downspread");
}
if (of_property_read_bool(node, "ti,low-power-stop"))
dpll_mode |= 1 << DPLL_LOW_POWER_STOP;
if (of_property_read_bool(node, "ti,low-power-bypass"))
dpll_mode |= 1 << DPLL_LOW_POWER_BYPASS;
if (of_property_read_bool(node, "ti,lock"))
dpll_mode |= 1 << DPLL_LOCKED;
if (!of_property_read_u32(node, "ti,min-div", &min_div) &&
min_div > dd->min_divider)
dd->min_divider = min_div;
if (dpll_mode)
dd->modes = dpll_mode;
_register_dpll(&clk_hw->hw, node);
return;
cleanup:
kfree(dd);
kfree(parent_names);
kfree(init);
kfree(clk_hw);
}
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX)
static void __init of_ti_omap4_dpll_x2_setup(struct device_node *node)
{
_register_dpll_x2(node, &dpll_x2_ck_ops, &clkhwops_omap4_dpllmx);
}
CLK_OF_DECLARE(ti_omap4_dpll_x2_clock, "ti,omap4-dpll-x2-clock",
of_ti_omap4_dpll_x2_setup);
#endif
#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
static void __init of_ti_am3_dpll_x2_setup(struct device_node *node)
{
_register_dpll_x2(node, &dpll_x2_ck_ops, NULL);
}
CLK_OF_DECLARE(ti_am3_dpll_x2_clock, "ti,am3-dpll-x2-clock",
of_ti_am3_dpll_x2_setup);
#endif
#ifdef CONFIG_ARCH_OMAP3
static void __init of_ti_omap3_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.freqsel_mask = 0xf0,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
if ((of_machine_is_compatible("ti,omap3630") ||
of_machine_is_compatible("ti,omap36xx")) &&
of_node_name_eq(node, "dpll5_ck"))
of_ti_dpll_setup(node, &omap3_dpll5_ck_ops, &dd);
else
of_ti_dpll_setup(node, &omap3_dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_dpll_clock, "ti,omap3-dpll-clock",
of_ti_omap3_dpll_setup);
static void __init of_ti_omap3_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 16,
.div1_mask = 0x7f << 8,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.freqsel_mask = 0xf0,
};
of_ti_dpll_setup(node, &omap3_dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_core_dpll_clock, "ti,omap3-dpll-core-clock",
of_ti_omap3_core_dpll_setup);
static void __init of_ti_omap3_per_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1 << 1,
.enable_mask = 0x7 << 16,
.autoidle_mask = 0x7 << 3,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.freqsel_mask = 0xf00000,
.modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_per_dpll_clock, "ti,omap3-dpll-per-clock",
of_ti_omap3_per_dpll_setup);
static void __init of_ti_omap3_per_jtype_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1 << 1,
.enable_mask = 0x7 << 16,
.autoidle_mask = 0x7 << 3,
.mult_mask = 0xfff << 8,
.div1_mask = 0x7f,
.max_multiplier = 4095,
.max_divider = 128,
.min_divider = 1,
.sddiv_mask = 0xff << 24,
.dco_mask = 0xe << 20,
.flags = DPLL_J_TYPE,
.modes = (1 << DPLL_LOW_POWER_STOP) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &omap3_dpll_per_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap3_per_jtype_dpll_clock, "ti,omap3-dpll-per-j-type-clock",
of_ti_omap3_per_jtype_dpll_setup);
#endif
static void __init of_ti_omap4_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_dpll_clock, "ti,omap4-dpll-clock",
of_ti_omap4_dpll_setup);
static void __init of_ti_omap5_mpu_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.dcc_mask = BIT(22),
.dcc_rate = 1400000000, /* DCC beyond 1.4GHz */
.min_divider = 1,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(of_ti_omap5_mpu_dpll_clock, "ti,omap5-mpu-dpll-clock",
of_ti_omap5_mpu_dpll_setup);
static void __init of_ti_omap4_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_core_dpll_clock, "ti,omap4-dpll-core-clock",
of_ti_omap4_core_dpll_setup);
#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
defined(CONFIG_SOC_DRA7XX)
static void __init of_ti_omap4_m4xen_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.m4xen_mask = 0x800,
.lpmode_mask = 1 << 10,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_m4xen_dpll_clock, "ti,omap4-dpll-m4xen-clock",
of_ti_omap4_m4xen_dpll_setup);
static void __init of_ti_omap4_jtype_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.autoidle_mask = 0x7,
.mult_mask = 0xfff << 8,
.div1_mask = 0xff,
.max_multiplier = 4095,
.max_divider = 256,
.min_divider = 1,
.sddiv_mask = 0xff << 24,
.flags = DPLL_J_TYPE,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_m4xen_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap4_jtype_dpll_clock, "ti,omap4-dpll-j-type-clock",
of_ti_omap4_jtype_dpll_setup);
#endif
static void __init of_ti_am3_no_gate_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.ssc_enable_mask = 0x1 << 12,
.ssc_downspread_mask = 0x1 << 14,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.ssc_deltam_int_mask = 0x3 << 18,
.ssc_deltam_frac_mask = 0x3ffff,
.ssc_modfreq_mant_mask = 0x7f,
.ssc_modfreq_exp_mask = 0x7 << 8,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.max_rate = 1000000000,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_no_gate_dpll_clock, "ti,am3-dpll-no-gate-clock",
of_ti_am3_no_gate_dpll_setup);
static void __init of_ti_am3_jtype_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 4095,
.max_divider = 256,
.min_divider = 2,
.flags = DPLL_J_TYPE,
.max_rate = 2000000000,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_jtype_dpll_clock, "ti,am3-dpll-j-type-clock",
of_ti_am3_jtype_dpll_setup);
static void __init of_ti_am3_no_gate_jtype_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.max_rate = 2000000000,
.flags = DPLL_J_TYPE,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_no_gate_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_no_gate_jtype_dpll_clock,
"ti,am3-dpll-no-gate-j-type-clock",
of_ti_am3_no_gate_jtype_dpll_setup);
static void __init of_ti_am3_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.ssc_enable_mask = 0x1 << 12,
.ssc_downspread_mask = 0x1 << 14,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.ssc_deltam_int_mask = 0x3 << 18,
.ssc_deltam_frac_mask = 0x3ffff,
.ssc_modfreq_mant_mask = 0x7f,
.ssc_modfreq_exp_mask = 0x7 << 8,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.max_rate = 1000000000,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_dpll_clock, "ti,am3-dpll-clock", of_ti_am3_dpll_setup);
static void __init of_ti_am3_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.idlest_mask = 0x1,
.enable_mask = 0x7,
.mult_mask = 0x7ff << 8,
.div1_mask = 0x7f,
.max_multiplier = 2047,
.max_divider = 128,
.min_divider = 1,
.max_rate = 1000000000,
.modes = (1 << DPLL_LOW_POWER_BYPASS) | (1 << DPLL_LOCKED),
};
of_ti_dpll_setup(node, &dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_am3_core_dpll_clock, "ti,am3-dpll-core-clock",
of_ti_am3_core_dpll_setup);
static void __init of_ti_omap2_core_dpll_setup(struct device_node *node)
{
const struct dpll_data dd = {
.enable_mask = 0x3,
.mult_mask = 0x3ff << 12,
.div1_mask = 0xf << 8,
.max_divider = 16,
.min_divider = 1,
};
of_ti_dpll_setup(node, &omap2_dpll_core_ck_ops, &dd);
}
CLK_OF_DECLARE(ti_omap2_core_dpll_clock, "ti,omap2-dpll-core-clock",
of_ti_omap2_core_dpll_setup);
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